Efficient steelmaking dust removal method

Abstract

The invention relates to an efficient steelmaking dust removal method, and belongs to the technical field of steelmaking environment-friendly methods. According to the technical scheme, dust in a dust removal area is sampled, collected and analyzed; formulating a dust removal scheme, debugging and installing dust removal equipment, and starting the equipment for dust removal; after dust removal, dust detection is conducted on the dust removal area, the detection result is analyzed, and readjustment is conducted according to the analysis result till the dust removal effect meets the requirement. The method has the beneficial effects that a targeted dust removal scheme can be formulated, the uniqueness and effectiveness of the dust removal scheme can be ensured, and the dust removal effect is improved; meanwhile, the dust removal effect can be evaluated, if the dust removal effect is not good, the dust removal scheme can be adjusted in time, the adjusted scheme has the better dust removal effect and efficiency, a log is generated for the scheme, and the actual application effect of the method is greatly improved.

Description

Technical Field

[0001] The invention relates to a high-efficiency steelmaking dust removal method, belonging to the technical field of steelmaking environmental protection methods. Background Art

[0002] Steelmaking is the core of the steel industry, and the issue of smoke and dust emissions during its production process has received increasing attention. These smoke and dust not only endanger the health of operators, but also have a serious impact on environmental quality. Therefore, adopting effective dust removal methods is of great significance to the sustainable development of steel plants. A Chinese patent (CN107433120A) discloses a method for ultrasonic desulfurization and dust removal of flue gas in a steel plant, which includes the following steps: the flue gas is passed through an electrostatic precipitator to remove part of the dust; the flue gas after electrostatic dust removal is introduced into an ultrasonic oscillator through a fan to react with a composite alkali solution, thereby removing SO2 and PM (20-10) dust in the flue gas; the composite alkali solution contains sodium hydroxide, calcium hydroxide and magnesium hydroxide, and before adding calcium hydroxide into the composite alkali solution, the calcium hydroxide is first ground into a powder of 4000-5000 mesh; the flue gas after the ultrasonic oscillator enters a demisting reaction tower, and a misting nozzle is provided in the demisting reaction tower, and a strong spray is used to absorb and dissolve SO2 and dust; the flue gas treated by the demisting reaction tower is sucked in and sent back to the exhaust pipe under the action of the induced draft fan. The desulfurization efficiency of this method reaches 98.5%~99%, and the concentration of PM (20-10) is reduced by 95%~98%. Although the current dust removal method can complete steelmaking dust removal, it has not established a complete set of testing and correction strategies. As a result, if the final dust removal effect is not ideal, the strategy cannot be adjusted quickly, thereby failing to continuously improve the dust removal effect. The actual application effect is not good, and an efficient steelmaking dust removal method is urgently needed. Summary of the invention

[0003] The purpose of the present invention is to provide a high-efficiency steelmaking dust removal method. By setting up a dust sampling and detection process, the type, source and concentration information of dust can be obtained, so that a targeted dust removal plan can be formulated for the dust removal in the area, the uniqueness and effectiveness of the dust removal plan can be guaranteed, and the dust removal effect can be improved; at the same time, a post-dust removal detection process and a detection result analysis process are also provided, which can evaluate the dust removal effect. If the dust removal effect is not good, the dust removal plan can be adjusted in time, so that the adjusted plan has better dust removal effect and efficiency, until the best dust removal plan is generated, and a log is generated for it, which greatly improves the practical application effect of the method and effectively solves the above-mentioned problems existing in the background technology.

[0004] The technical solution of the present invention is: an efficient steelmaking dust removal method, comprising the following steps: S1. Collect and sample the dust in the dust removal area and analyze the dust; S2. Formulate a dust removal plan, including selecting dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment; S3. Debug and install dust removal equipment; S4. Turn on the equipment to remove dust; S5. After dust removal, conduct dust detection in the dust removal area; S6. Set the dust content standard of air and analyze the test results; S7. Readjust the above S2-S3 according to the analysis results; S8. Repeat the dust removal experiment; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements.

[0005] In the step S1, the dust is analyzed, including the type, source and concentration of the dust, and the generation mechanism and characteristics of the dust are analyzed.

[0006] In step S2, the dust removal equipment is one or more of a pulse bag dust collector and an electrostatic dust collector.

[0007] In step S3, the dust removal equipment is debugged and installed. During this process, the safety of the dust removal equipment during operation is ensured, various parameters of the dust removal equipment are checked to ensure they are normal, and the air tightness and airflow distribution of the dust removal equipment are checked.

[0008] In the step S4, the equipment is turned on for dust removal. During industrial dust removal, the collected dust is pre-treated, and the pre-treatment includes humidifying and cooling the dust.

[0009] In step S5, the dust detection method adopts one or more of a capacitance method, a β-ray method, a light scattering method and a light absorption method.

[0010] In step S6, the detection results are analyzed. When the dust content in the air is ≤10 mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10 mg / m3 and less than 20 mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20 mg / m3, it means that the dust removal effect is poor.

[0011] In step S7, the readjustment includes adjusting the type of the dust removal equipment, changing the layout setting of the dust removal equipment, and re-adjusting various parameters of the dust removal equipment.

[0012] In step S10, when the dust removal effect meets the requirements, a dust removal operation log is generated, and the information is integrated into tables and graphic information, and the information is fed back to the receiving terminal, which is one or more of a mobile phone and a laptop computer.

[0013] The beneficial effects of the present invention are as follows: by setting up a dust sampling and detection process, it is possible to obtain information on the type, source and concentration of dust, so that a targeted dust removal plan can be formulated for dust removal in the area, the uniqueness and effectiveness of the dust removal plan can be guaranteed, and the dust removal effect can be improved; at the same time, a post-dust removal detection process and a detection result analysis process are also provided, which can evaluate the dust removal effect. If the dust removal effect is not good, the dust removal plan can be adjusted in time, so that the adjusted plan has better dust removal effect and efficiency, until the best dust removal plan is generated, and a log is generated for it, which greatly improves the practical application effect of the method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic flow chart of the method of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the invention implementation cases clearer, the technical solutions in the implementation cases of the present invention will be clearly and completely described below in conjunction with the drawings in the implementation cases. Obviously, the implementation cases described are only a small part of the implementation cases of the present invention, rather than all the implementation cases. Based on the implementation cases in the present invention, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] An efficient steelmaking dust removal method comprises the following steps: S1. Collect and sample the dust in the dust removal area and analyze the dust; S2. Formulate a dust removal plan, including selecting dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment; S3. Debug and install dust removal equipment; S4, turn on the equipment to remove dust; S5. After dust removal, conduct dust detection in the dust removal area; S6. Set the dust content standard of air and analyze the test results; S7. Readjust the above S2-S3 according to the analysis results; S8. Repeat the dust removal experiment; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements.

[0017] In the step S1, the dust is analyzed, including the type, source and concentration of the dust, and the generation mechanism and characteristics of the dust are analyzed.

[0018] In step S2, the dust removal equipment is one or more of a pulse bag dust collector and an electrostatic dust collector.

[0019] In step S3, the dust removal equipment is debugged and installed. During this process, the safety of the dust removal equipment during operation is ensured, various parameters of the dust removal equipment are checked to ensure they are normal, and the air tightness and airflow distribution of the dust removal equipment are checked.

[0020] In the step S4, the equipment is turned on for dust removal. During industrial dust removal, the collected dust is pre-treated, and the pre-treatment includes humidifying and cooling the dust.

[0021] In step S5, the dust detection method adopts one or more of a capacitance method, a β-ray method, a light scattering method and a light absorption method.

[0022] In step S6, the detection results are analyzed. When the dust content in the air is ≤10 mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10 mg / m3 and less than 20 mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20 mg / m3, it means that the dust removal effect is poor.

[0023] In step S7, the readjustment includes adjusting the type of the dust removal equipment, changing the layout setting of the dust removal equipment, and re-adjusting various parameters of the dust removal equipment.

[0024] In step S10, when the dust removal effect meets the requirements, a dust removal operation log is generated, and the information is integrated into tables and graphic information, and the information is fed back to the receiving terminal, which is one or more of a mobile phone and a laptop computer. Example 1

[0025] The steps include: S1. Collect and sample pollutants in the dust removal area and analyze the dust, including the type, source and concentration of dust, as well as the generation mechanism and characteristics of dust; S2. Develop a detailed dust removal plan, including selecting appropriate dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment. The dust removal equipment is a pulse bag dust collector; S3. Debug and install the dust removal equipment. During this process, it is necessary to ensure the safety of the dust removal equipment during operation, check the various parameters of the dust removal equipment to ensure they are normal, and check the air tightness and airflow distribution of the dust removal equipment; S4. Turn on the equipment for dust removal. In industrial dust removal, the collected dust needs to be pre-treated, which includes humidification and cooling of the dust; S5. After dust removal, the dust removal area is tested for dust using the capacitance method. S6. Analyze the test results. When the dust content in the air is ≤10mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10mg / m3 and less than 20mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20mg / m3, it means that the dust removal effect is poor. S7. Readjust the above S2-S3 according to the analysis results, the readjustment includes adjusting the type of dust removal equipment, changing the layout setting of the dust removal equipment and re-adjusting various parameters of the dust removal equipment; S8. Carry out the dust removal experiment again, record all relevant data, and record the data; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements, automatically generate a dust removal operation log, and integrate the information into tables, graphics and text information, and feed the information back to the receiving terminal, which is a mobile phone.

[0026] In this embodiment, the method is provided with a dust sampling and detection process, which can obtain information on the type, source and concentration of dust, so that a targeted dust removal plan can be formulated for dust removal in the area, which can ensure the uniqueness and effectiveness of the dust removal plan and improve the dust removal effect. Example 2

[0027] The steps include: S1. Collect and sample pollutants in the dust removal area and analyze the dust, including the type, source and concentration of dust, as well as the generation mechanism and characteristics of dust; S2. Develop a detailed dust removal plan, including selecting appropriate dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment. The dust removal equipment is a pulse bag dust collector; S3. Debug and install the dust removal equipment. During this process, it is necessary to ensure the safety of the dust removal equipment during operation, check the various parameters of the dust removal equipment to ensure they are normal, and check the air tightness and airflow distribution of the dust removal equipment; S4. Turn on the equipment for dust removal. In industrial dust removal, the collected dust needs to be pre-treated, which includes humidification and cooling of the dust; S5. After dust removal, the dust removal area is tested for dust using the β-ray method; S6. Analyze the test results. When the dust content in the air is ≤10mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10mg / m3 and less than 20mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20mg / m3, it means that the dust removal effect is poor. S7. Readjust the above S2-S3 according to the analysis results, the readjustment includes adjusting the type of dust removal equipment, changing the layout setting of the dust removal equipment and re-adjusting various parameters of the dust removal equipment; S8. Carry out the dust removal experiment again, record all relevant data, and record the data; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements, automatically generate a dust removal operation log, and integrate the information into tables, graphics and text information, and feed the information back to the receiving terminal, which is a laptop computer.

[0028] In this embodiment, the method is also provided with a post-dust removal detection process and a detection result analysis process, which can evaluate the dust removal effect. If the dust removal effect is not good, the dust removal scheme can be adjusted, including adjusting the type of dust removal equipment, changing the layout setting of the dust removal equipment, and re-debugging various parameters of the dust removal equipment, etc., so that the adjusted scheme has better dust removal effect and efficiency, until the best dust removal scheme is generated, and a log is generated for it, which greatly improves the practical application effect of the method. Example 3

[0029] The steps include: S1. Collect and sample pollutants in the dust removal area and analyze the dust, including the type, source and concentration of dust, as well as the generation mechanism and characteristics of dust; S2. Develop a detailed dust removal plan, including selecting appropriate dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment. The dust removal equipment is an electrostatic dust collector; S3. Debug and install the dust removal equipment. During this process, it is necessary to ensure the safety of the dust removal equipment during operation, check the various parameters of the dust removal equipment to ensure they are normal, and check the air tightness and airflow distribution of the dust removal equipment; S4. Turn on the equipment for dust removal. In industrial dust removal, the collected dust needs to be pre-treated, which includes humidification and cooling of the dust; S5. After dust removal, dust detection is performed in the dust removal area. The dust detection method uses light scattering method and light absorption method; S6. Analyze the test results. When the dust content in the air is ≤10mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10mg / m3 and less than 20mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20mg / m3, it means that the dust removal effect is poor. S7. Readjust the above S2-S3 according to the analysis results, the readjustment includes adjusting the type of dust removal equipment, changing the layout setting of the dust removal equipment and re-adjusting various parameters of the dust removal equipment; S8. Carry out the dust removal experiment again, record all relevant data, and record the data; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements, automatically generate a dust removal operation log, and integrate the information into tables, graphics and text information, and feed the information back to the receiving terminal, which is a mobile phone.

[0030] In this embodiment, the method is provided with a dust sampling and detection process, which can obtain information on the type, source and concentration of dust, so that a targeted dust removal plan can be formulated for dust removal in the area, which can ensure the uniqueness and effectiveness of the dust removal plan and improve the dust removal effect. At the same time, the method is also provided with a post-dust removal detection process and a detection result analysis process, which can evaluate the dust removal effect. If the dust removal effect is not good, the dust removal plan can be adjusted, including adjusting the type of dust removal equipment, changing the layout setting of the dust removal equipment and re-debugging various parameters of the dust removal equipment, etc., so that the adjusted plan has better dust removal effect and efficiency, until the best dust removal plan is generated, and a log is generated for it, which greatly improves the actual application effect of the method.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An efficient steelmaking dust removal method, characterized in that The following steps are involved: S1. Collect and sample the dust in the dust removal area and analyze the dust; S2. Formulate a dust removal plan, including selecting dust removal equipment, designing the installation layout of the dust removal equipment, and making safety settings for the dust removal equipment; S3. Debug and install dust removal equipment; S4. Turn on the equipment to remove dust; S5. After dust removal, conduct dust detection in the dust removal area; S6. Set the dust content standard of air and analyze the test results; S7. Readjust the above S2-S3 according to the analysis results; S8. Repeat the dust removal experiment; S9. Re-test the dust removal area for dust; S10, repeat the above process until the dust removal effect meets the requirements.

2. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In the step S1, the dust is analyzed, including the type, source and concentration of the dust, and the generation mechanism and characteristics of the dust are analyzed.

3. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In step S2, the dust removal equipment is one or more of a pulse bag dust collector and an electrostatic dust collector.

4. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In step S3, the dust removal equipment is debugged and installed. During this process, the safety of the dust removal equipment during operation is ensured, various parameters of the dust removal equipment are checked to ensure they are normal, and the air tightness and airflow distribution of the dust removal equipment are checked.

5. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In the step S4, the equipment is turned on for dust removal. During industrial dust removal, the collected dust is pre-treated, and the pre-treatment includes humidifying and cooling the dust.

6. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In step S5, the dust detection method adopts one or more of a capacitance method, a β-ray method, a light scattering method and a light absorption method.

7. The high-efficiency steelmaking dust removal method according to claim 1 is characterized in that: In step S6, the detection results are analyzed. When the dust content in the air is ≤10 mg / m3, it means that the dust removal effect is excellent. When the dust content in the air is ≥10 mg / m3 and less than 20 mg / m3, it means that the dust removal effect is good. When the dust content in the air is ≥20 mg / m3, it means that the dust removal effect is poor.

8. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In step S7, the readjustment includes adjusting the type of the dust removal equipment, changing the layout setting of the dust removal equipment, and re-adjusting various parameters of the dust removal equipment.

9. The high-efficiency steelmaking dust removal method according to claim 1, characterized in that: In step S10, when the dust removal effect meets the requirements, a dust removal operation log is generated, and the information is integrated into tables and graphic information, and the information is fed back to the receiving terminal, which is one or more of a mobile phone and a laptop computer.

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