Dust removal device for dust removal treatment of steel ladle cold repair work area

Abstract

The invention relates to the technical field of steel ladle cold repair work area dust removal, in particular to a dust removal device for steel ladle cold repair work area dust removal treatment. A dust removal assembly of the steel ladle unpacking position is an elevated movable top suction dust removal cover, dust generated in the disassembly production process is placed below the dust removal cover, and the dust is collected in a top suction dust removal mode and guided into a main pipeline of an existing large bag dust removal system. The dust removal assembly for the steel ladle building area comprises two parts, one part is a fixed top suction dust removal cover at a batching point of a spraying machine for steel ladle knotting, and the other part is a fixed side suction dust removal cover at a batching point of a refractory building material stirrer. The method solves the problems that a large amount of dust can be generated in the existing three process steps of steel ladle refractory removal, steel ladle refractory permanent layer knotting, working layer knotting and steel ladle slag line refractory building, the body health of field staff and the social environment are harmed, and the enterprise image and survival are seriously affected.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology in cold repair areas of steel ladles, specifically to a dust removal device for dust control in cold repair areas of steel ladles. Background Technology

[0002] Cold repair of ladles is an essential preparatory step in the steelmaking process. The work area is typically located within the steelmaking plant, utilizing overhead cranes for process flow and transfer. Cold repair of ladles generally includes the following steps: removal of ladle refractory materials (working layer and permanent layer), repair of the ladle body (shell), tying of the permanent layer of ladle refractory materials, tying of the working layer of ladle refractory materials, repair of the refractory materials along the ladle slag line, and offline baking of the ladle. Among these, the removal of ladle refractory materials (working layer and permanent layer), tying of the permanent and working layers, and repair of the refractory materials along the ladle slag line generate a large amount of dust, which harms the health of on-site employees and the social environment, seriously affecting the company's image and survival. Summary of the Invention

[0003] The technical problem to be solved by this invention is that the existing three processes of dismantling the ladle refractory material (working layer and permanent layer), tying the permanent layer and working layer of the ladle refractory material, and repairing the refractory material of the ladle slag line generate a large amount of dust, which endangers the health of on-site employees and the social environment, and seriously affects the image and survival of enterprises.

[0004] To solve the above problems, the technical solution adopted by the present invention is a dust removal device for cold repair work area of ​​steel ladle, including a dust removal component for steel ladle unpacking position, a dust removal component for steel ladle repair area, and a main pipeline of existing large bag dust removal system connected to the above dust removal components.

[0005] Among them, the dust removal component used for the steel ladle unpacking position is an elevated mobile top suction dust removal hood. This elevated mobile top suction dust removal hood can be moved according to the steel ladle unpacking operation position, placing the dust generated during the unpacking process below it, collecting the dust through top suction dust removal and introducing it into the main pipeline of the existing large bag dust removal system.

[0006] The dust removal system for the ladle repair area consists of two parts: a fixed top-suction dust removal hood installed at the feeding point of the ladle tying sprayer, and a fixed side-suction dust removal hood installed at the feeding point of the refractory repair material mixer. The fixed top-suction dust removal hood and the fixed side-suction dust removal hood collect the dust generated when the corresponding feeding point is discharging material and introduce it into the main pipeline of the existing large bag filter dust collection system.

[0007] It also includes dust collection ducts with corresponding airflow designed according to different source points. The dust collection ducts are equipped with electric valves, which are controlled by the electric valves to achieve on-demand use, so as to meet the national ultra-low emission standards for environmental management in the ladle cold repair area. At the same time, it is equipped with a system for real-time collection of dust collection valve control status. This system effectively integrates the total demand of each user, adjusts the fan power output by adjusting the fan operating frequency, and combines the fan operating characteristic curve to stabilize the flow velocity and airflow on the user side, ensuring that dust collection at each source point meets the requirements of the national ultra-low emission standards. In addition, environmental monitoring and collection points are set up in the ladle cold repair area for real-time monitoring of dust collection effectiveness.

[0008] As a further aspect of the present invention, the dust removal system has a sufficiently large processing capacity, which can not only meet the maximum air volume requirements when multiple sources are used simultaneously in the ladle cold repair area, but also reserve a certain margin to ensure that the dust generated by each source can be stably and effectively collected and treated under special circumstances such as production fluctuations.

[0009] As a further aspect of the present invention: the installation of the elevated mobile top suction dust removal hood, the fixed top suction dust removal hood, and the fixed side suction dust removal hood does not affect the normal operation of each process of cold repair of the ladle. The installation position and size are set reasonably, and will not cause any obstruction to the normal operation of each process, ensuring the smooth progress of the production process and the convenience of operation for the operators.

[0010] As a further aspect of the present invention: each source point electric valve establishes a real-time communication connection with the existing large-scale bag filter dust collection system through wired or wireless means. The communication protocol is stable and reliable, and can promptly and accurately feed back valve status information to the dust collection system, so as to quickly adjust the valve opening according to actual needs, accurately control the air volume, and ensure the efficient operation of the dust collection system.

[0011] As a further aspect of the present invention: the system for real-time acquisition of the control status of dust removal valves adopts advanced sensor technology and data acquisition modules, which can quickly and accurately acquire the control status information of each valve. Through comprehensive analysis of the total demand of each user, intelligent algorithms are used to accurately adjust the fan operating parameters, so as to achieve efficient dust removal while minimizing energy consumption and achieving a balance between energy saving and efficient dust removal.

[0012] As a further aspect of the present invention: the environmental monitoring and collection points in the ladle cold repair work area are distributed in various key locations in the work area, including near dust sources and personnel operation areas. High-precision environmental monitoring equipment is used to comprehensively and accurately detect the dust removal effect in real time and transmit the monitoring data to the monitoring center in a timely manner so that managers can keep abreast of the environmental conditions in the work area.

[0013] As a further aspect of the present invention, the elevated mobile top suction dust removal hood is made of high-strength, wear-resistant alloy material, and its surface undergoes special anti-corrosion treatment to adapt to the harsh environment of steel ladle unpacking operations, such as high temperature and dust corrosion, effectively extending its service life and reducing equipment maintenance costs.

[0014] As a further aspect of the present invention, a filter screen is provided at the air inlet of the fixed top suction dust removal hood and the fixed side suction dust removal hood. The filter screen is composed of multiple layers of filter screens with different mesh sizes, which can prevent large particles of debris from entering the dust removal pipe, and at the same time facilitate regular cleaning and replacement, ensuring the normal operation of the dust removal system and good dust removal effect.

[0015] Compared with the prior art, the advantages of this invention are as follows: 1. The dust removal device provided in this application effectively solves this problem through targeted design; the elevated mobile top suction dust removal hood is designed for the ladle unpacking position and can be flexibly moved according to the work position, completely placing the dust generated during the unpacking process below it for efficient collection through top suction; the fixed top suction dust removal hood and the fixed side suction dust removal hood are designed for the ladle knotting spraying machine dispensing point and the refractory repair material mixing machine dispensing point, respectively, accurately collecting the dust that escapes during material discharge; these dust removal components work together to effectively collect the dust from each dust generation point and introduce it into the existing large-scale bag dust collection system. 1. By controlling the main pipeline, dust dispersion is reduced at the source, creating a relatively healthy working environment for on-site employees, reducing environmental pollution to society, and helping to improve the company's social image and sustainable development capabilities; 2. This application device takes into account the multiple dust generation sources in the ladle cold repair area and designs dust removal pipelines according to the corresponding air volume of different source points, and installs electric valves on the pipelines; this design allows the dust removal system to be used on demand according to the actual needs of each source point, meeting the maximum air volume requirements when multiple source points are operating simultaneously; at the same time, a certain amount of spare capacity is reserved to ensure that special circumstances such as production fluctuations are handled. Under these conditions, dust generated at each source point can still be collected and treated stably and effectively; the electric valves at each source point establish real-time communication connections with the existing large-scale bag filter dust collection system via wired or wireless means, and the communication protocol is stable and reliable, enabling timely and accurate feedback of valve status information to the dust collection system; this allows the dust collection system to quickly adjust the valve opening according to actual needs, precisely control the air volume, ensure the efficient operation of the dust collection system, and avoid problems such as poor dust collection effect or energy waste caused by insufficient or excessive air volume; 3. The system equipped with real-time acquisition of dust collection valve control status adopts advanced sensor technology and data acquisition module This system can quickly and accurately acquire control status information for each valve; through comprehensive analysis of the total demand from each user, it uses intelligent algorithms to precisely adjust the fan operating parameters, such as adjusting the fan operating frequency to change the fan power output; combined with the fan operating characteristic curve, it stabilizes the flow velocity and air volume on the user side, achieving efficient dust removal while minimizing energy consumption; this intelligent adjustment method avoids the energy waste caused by the long-term fixed operation of fans in traditional dust removal systems, achieving a balance between energy saving and efficient dust removal, reducing the production costs of enterprises, and meeting the development requirements of modern enterprises for energy conservation and emission reduction. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front view of the installation position of the elevated mobile top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0018] Figure 2 This is a side view of the installation position of the elevated mobile top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0019] Figure 3 This is a top view of the installation position of the elevated mobile top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0020] Figure 4 This is a front view of the installation position of the fixed top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0021] Figure 5 This is a side view of the installation position of the fixed top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0022] Figure 6 This is a top view of the installation position of the fixed top suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0023] Figure 7 This is a side view of the installation position of the fixed side suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0024] Figure 8 This is a front view of the installation position of the fixed side suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0025] Figure 9 This is a top view of the installation position of the fixed side suction dust collector hood in a dust removal device for cold repair work area of ​​a steel ladle according to the present invention.

[0026] In the attached image:

[0027] 1. Elevated mobile top-mounted dust collection hood; 2. Fixed top-mounted dust collection hood; 3. Fixed side-mounted dust collection hood; 4. Dust collection duct; 5. Electric valve. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention provides a technical solution to address the existing problems mentioned in the background section.

[0030] Combined with appendix Figure 1-9Installation of the equipment: First, install an elevated mobile top-suction dust collector hood 1 at the ladle unloading position. Determine its reasonable installation location based on the actual space and operational procedures of the ladle unloading operation, ensuring that the elevated mobile top-suction dust collector hood 1 can move flexibly according to the ladle unloading operation location without affecting the operation. The elevated mobile top-suction dust collector hood 1 is made of high-strength, wear-resistant alloy material, and its surface undergoes special anti-corrosion treatment to adapt to the harsh environment of high temperature and dust erosion during ladle unloading. Install a fixed top-suction dust collector hood 2 at the ladle tying sprayer's feeding point, and a fixed side-suction dust collector hood 3 at the refractory lining material mixer's feeding point. Similarly, determine their installation location and dimensions based on the operational space and procedures of each process to ensure that they do not affect the normal operation of each process. Simultaneously, install filters composed of multiple layers of filters with different mesh sizes at the air inlets of the fixed top-suction dust collector hood 2 and the fixed side-suction dust collector hood 3. Next… Lay dust collection ducts 4 with corresponding air volume designed according to different source points, and connect the elevated mobile top suction dust collection hood 1, fixed top suction dust collection hood 2, and fixed side suction dust collection hood 3 to the dust collection ducts 4 respectively. Connect the dust collection ducts 4 to the main pipeline of the existing large-scale bag dust collection system. Install electric valves 5 on the dust collection ducts 4. The electric valves 5 at each source point establish real-time communication connections with the existing large-scale bag dust collection system through wired or wireless means to ensure stable and reliable communication protocols. Install a system equipped with real-time acquisition of the control status of the dust collection valves. This system adopts advanced sensor technology and data acquisition modules and is connected to each electric valve 5 to obtain valve control status information. Finally, set up on-site environmental monitoring and collection points at various key locations in the ladle cold repair area, including near dust generation sources and personnel operation areas, and install high-precision environmental monitoring equipment. Connect the monitoring equipment to the monitoring center for data transmission.

[0031] Commissioning and Operation Preparation: After installation, commission the entire dust removal device; check if the movement function of the elevated mobile top suction dust removal hood 1 is normal, if the installation of the fixed top suction dust removal hood 2 and the fixed side suction dust removal hood 3 is secure, and if the filter screen is installed correctly; check if the connection of the dust removal pipeline 4 is well sealed, if the opening and closing of the electric valve 5 is flexible, and if the communication with the dust removal system is normal; commission the system for real-time acquisition of the control status of the dust removal valves to ensure that it can quickly and accurately acquire the control status information of each valve and accurately adjust the fan operating parameters through intelligent algorithms; calibrate the high-precision environmental monitoring equipment at the work site environmental monitoring and collection points to ensure that it can comprehensively and accurately detect the dust removal effect in real time; after the commissioning is correct, start the fan of the existing large bag dust removal system, and preliminarily set the fan operating frequency and power output according to the actual situation of the steel ladle cold repair area to put the dust removal system into a standby state.

[0032] The working principle of this application is as follows:

[0033] Dust collection process: During the cold repair of the ladle, when the refractory material is removed from the ladle, the elevated mobile top-suction dust collector hood 1 moves to a suitable position according to the ladle removal operation location, completely placing the dust generated during the removal process below it. Using a top-suction dust collection method and the principle of negative pressure, the dust is sucked into the elevated mobile top-suction dust collector hood 1 and then introduced into the main pipeline of the existing large-scale bag filter dust collection system through the dust collection pipe 4. When the ladle is being tethered and the spraying machine is discharging material, the fixed top-suction dust collector hood 2 starts working, using top suction... The dust generated during material discharge is collected and directed into the main pipeline of the existing large-scale baghouse dust collection system. When the refractory lining material mixer discharges material, the fixed side-suction dust collector 3 uses a side-suction method to collect the dust and direct it into the main pipeline of the existing large-scale baghouse dust collection system. When the dust enters the dust collection pipeline 4, the filters at the air inlets of the fixed top-suction dust collector 2 and the fixed side-suction dust collector 3 will prevent large particles from entering the dust collection pipeline 4, ensuring that the dust entering the main pipeline is relatively pure, which is beneficial to subsequent dust collection treatment.

[0034] Airflow control and energy-saving process: Each source point's electric valve 5 feeds back its status information to the existing large-scale baghouse dust collection system in real time via wired or wireless communication. The system, which collects the control status of the dust collection valves in real time, utilizes advanced sensor technology and data acquisition modules to quickly and accurately acquire the control status information of each valve and comprehensively analyzes the total demand of each user. Based on the analysis results, intelligent algorithms are used to precisely adjust the fan operating parameters, such as changing the fan power output by adjusting the fan operating frequency. Combined with the fan operating characteristic curve, the flow velocity and airflow on the user side are stabilized to ensure that dust collection at each source point meets the national ultra-low emission standards. When the amount of dust generated at a certain source point increases, the opening of the corresponding electric valve 5 increases. After detecting this change, the system increases the airflow at that source point by adjusting the fan operating parameters. Conversely, when the amount of dust at a certain source point decreases, the opening of the electric valve 5 decreases, and the system adjusts the fan parameters accordingly to reduce the airflow. This on-demand airflow adjustment method avoids the energy waste caused by the long-term fixed operation of fans in traditional dust collection systems, achieving a balance between energy saving and efficient dust removal.

[0035] Environmental Monitoring and Feedback Process: High-precision environmental monitoring equipment is used at key locations in the ladle cold repair area to monitor dust removal efficiency in real time, including indicators such as dust concentration. The monitoring equipment transmits the data to the monitoring center in a timely manner, allowing managers to monitor the environmental conditions of the work area. If dust concentration exceeds the standard in a certain area, managers can promptly check whether the corresponding dust removal components are working properly, such as checking whether the elevated mobile top suction dust collector hood 1, fixed top suction dust collector hood 2, or fixed side suction dust collector hood 3 are blocked or damaged, or checking whether the opening of the electric valve 5 is appropriate. Then, appropriate measures are taken to adjust and handle the situation to ensure that the environmental quality of the entire ladle cold repair area always meets the national ultra-low emission standards.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dust removal device for steel ladle cold repair work area dust removal treatment, characterized in that: The dust removal assembly for the steel ladle unpacking position, the dust removal assembly for the steel ladle repairing area, and the existing main pipeline of the large bag dust removal system connected with the above-mentioned dust removal assemblies are included. The dust removal assembly for the steel ladle unpacking position is a high-mounted mobile top suction dust cover (1), which can be moved according to the position of the steel ladle unpacking operation, and the dust generated in the unpacking production process is placed below the high-mounted mobile top suction dust cover (1), which collects the dust by top suction and introduces it into the existing main pipeline of the large bag dust removal system. The dust removal assembly for the steel ladle repairing area includes two parts, one part is a fixed top suction dust cover (2) arranged at the dosing point of the steel ladle knot spraying machine, and the other part is a fixed side suction dust cover (3) arranged at the dosing point of the refractory repairing material mixer. The fixed top suction dust cover (2) and the fixed side suction dust cover (3) respectively collect the escaped dust generated when the materials are discharged at the corresponding dosing points and introduce it into the existing main pipeline of the large bag dust removal system. It also includes corresponding air volume dust removal pipelines (4) designed according to different source points, and electric valves (5) are arranged on the dust removal pipelines (4) to realize on-demand use through electric valve (5) control to meet the national ultra-low emission standard for the environment management of the steel ladle cold repair work area. At the same time, a system for real-time acquisition of dust removal valve control state is provided, which effectively integrates the total amount of user demand, adjusts the fan power output by adjusting the fan operating frequency, and stabilizes the user side flow rate and air volume in combination with the fan operating characteristic curve to ensure that the dust collection of each source point meets the national ultra-low emission standard requirements. In addition, post environmental detection and acquisition points are arranged in the steel ladle cold repair work area for real-time detection of dust removal effect.

2. The dust removal device for a steel ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The dust removal system has sufficient processing capacity, which not only meets the maximum air volume demand of the steel ladle cold repair work area when multiple source points are used at the same time, but also reserves a certain margin to ensure that the dust generated by each source point can be stably and effectively collected and treated under special circumstances such as production fluctuations.

3. The dust removal device for ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The arrangement of the high-mounted mobile top suction dust cover (1), the fixed top suction dust cover (2), and the fixed side suction dust cover (3) does not affect the normal operation of each process of the steel ladle cold repair, and the installation position and size are reasonably set, which will not hinder the normal operation of each process, ensuring the smooth progress of the production process and the convenience of the operation of the workers.

4. The dust removal device for ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The electric valves (5) of each source point and the existing large bag dust removal system are connected in real time through wired or wireless communication, and the communication protocol is stable and reliable, which can timely and accurately feed back the valve state information to the dust removal system, so as to quickly adjust the valve opening degree according to the actual demand, accurately control the air volume, and ensure the efficient operation of the dust removal system.

5. The dust removal device for ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The system for real-time acquisition of dust removal valve control state adopts advanced sensor technology and data acquisition module, which can quickly and accurately obtain the control state information of each valve, and through comprehensive analysis of the total amount of user demand, uses intelligent algorithm to accurately adjust the fan operating parameters, realizes efficient dust removal, and maximizes energy consumption, realizes the balance of energy saving and efficient dust removal.

6. The dedusting device for ladle cold repair work area dedusting management according to claim 1, characterized in that: The ladle cold repair work area post environment detection collection points are distributed at key positions of the work area, including near dust generation sources, personnel operation areas and the like, high-precision environment detection equipment is used, dust removal effects can be comprehensively and accurately detected in real time, and detection data is transmitted to a monitoring center in a timely manner, so that management personnel can timely master work area environment conditions.

7. The dust removal device for ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The overhead mobile top suction dust removal cover (1) is made of high-strength and wear-resistant alloy material, and the surface is subjected to special corrosion prevention treatment, so as to adapt to the harsh environment of ladle unpacking operation, such as high temperature and dust erosion, effectively prolong the service life, and reduce equipment maintenance cost.

8. The dust removal device for ladle cold repair work area dust removal treatment according to claim 1, characterized in that: The fixed top suction dust removal cover (2) and the fixed side suction dust removal cover (3) are provided with filter screens at air inlet openings, the filter screens are combined by multiple layers of filter screens with different mesh sizes, large-particle impurities can be prevented from entering the dust removal pipeline (4), and the filter screens are convenient for regular cleaning and replacement, so that normal operation and good dust removal effect of the dust removal system are ensured.

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