A continuous casting plant sector pickling device and method

Abstract

The application discloses a continuous casting workshop sector pickling device and a pickling method, which comprises a water storage tank, a pickling equipment water receiving plate, an external water pipe, a pressure pump, a pressure gauge and a control valve; wherein the pickling equipment water receiving plate comprises two plates arranged side by side, the two plates are supported by a support to form a pickling table, the upper ends of the two plates are connected to the sector to be cleaned, and the lower ends are respectively connected to the water inlet pipe and the water outlet pipe; the pressure gauge and the pressure pump are sequentially connected between the water inlet pipe and the water outlet of the water storage tank, the water outlet pipe is directly connected to the water inlet pipe of the water storage tank, and the control valve is arranged on the water inlet pipe and the water outlet pipe of the water receiving plate. The sector is cleaned by using the cleaning device, the blockage in the sector is effectively, quickly and conveniently cleaned, the cleaning time is shortened, and the maintenance efficiency can be remarkably improved. The pickling system can be used to accurately and directly clean the pipeline to be cleaned, the on-line service life of the sector is prolonged, and the input cost is saved.

Description

Technical Field

[0001] This invention relates to the field of metallurgical equipment maintenance technology, specifically to a pickling device and method for a sector section in a continuous casting workshop. Background Technology

[0002] In the continuous casting workshop, the sector section is a functional component that determines the thickness and flatness of the billet. When a sector section is in poor condition, it may cause problems such as scratches on the billet. Therefore, the sector section needs to be taken offline for maintenance regularly.

[0003] Currently, during maintenance of the continuous casting workshop in the steel plant, it was discovered that the water supply quality issues from the energy center frequently cause blockages in the sector section's pipelines. This prevents the cooling water from circulating within the section, leading to a series of quality problems. Inspection revealed that there are various types of debris clogging the pipelines. Due to the complexity of the sector section's pipelines, cleaning is very inconvenient, requiring a significant amount of manpower and resources, and there is also the possibility of incomplete cleaning, causing re-blockages. In the past, cleaning was mostly done manually or by flushing with domestic water pipes in one direction, the drawbacks of which are obvious. Summary of the Invention

[0004] Due to the aforementioned deficiencies in the existing technology, the present invention provides a pickling device and method for the sector section in a continuous casting workshop to solve the problem of incomplete manual rinsing of the sector section in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The pickling device for the sector section of the continuous casting workshop includes a water storage tank, pickling equipment receiving plates, external water pipes, a booster pump, a pressure gauge, and control valves. The pickling equipment receiving plates consist of two plates arranged side-by-side, supported by a bracket to form a pickling platform. The upper ends of the two receiving plates span the sector section to be cleaned, and the lower ends are connected to an inlet pipe and an outlet pipe, respectively. A pressure gauge and a booster pump are connected sequentially between the inlet pipe and the outlet of the water storage tank, and the outlet pipe is directly connected to the inlet pipe of the water storage tank. Control valves are installed on both the inlet and outlet pipes of the receiving plates.

[0006] The pickling equipment water receiving plate includes a first water receiving plate and a second water receiving plate, wherein the interface of the first water receiving plate serves as the water inlet of the fan-shaped section, and the interface of the second water receiving plate serves as the water outlet of the fan-shaped section.

[0007] Each inlet and outlet of the water receiving plate is connected to a control valve.

[0008] The water storage tank is also connected to a sewage tank, and the connection between the sewage tank and the water storage tank is controlled by a sewage discharge valve.

[0009] Both the inlet and outlet pipes are made of flexible metal hoses.

[0010] A filter device is installed at the outlet pipe of the water storage tank to prevent debris from entering the circulation pipeline.

[0011] It also includes an automatic control device, the output of which is connected to each control valve and pressure pump. The display interface of the automatic control device can set working parameters and clean the sector segment through a pre-set program.

[0012] The pickling method for the sector section of the continuous casting workshop includes the following steps: Step 1: Set up the pickling device for the sector section of the continuous casting workshop; Step 2: Pour an appropriate amount of water into the storage tank and add pickling powder to achieve the correct concentration. Step 3: Hoist the sector segment to be cleaned onto the pickling table. Connect the two ends of the sector segment to the interfaces of the water receiving plate, and check that each line is properly connected. Step 4: Open all control valves of the pickling station, start the pressure pump, and begin pickling the sector section; Step 5: Monitor the pressure value of the pressure gauge in real time to determine if there is a blockage in the pipeline. If there is a blockage, proceed to step 6; otherwise, proceed to step 7. Step 6: Turn off the control valves corresponding to each water pipe in the sector section in sequence, observe the pressure value of the pressure gauge in real time, determine the blocked pipe, pressurize and clean the blocked pipe until the blocked pipe is cleared, and then proceed to Step 7. Step 7: Clean the sector segment according to the preset program until cleaning is complete, then close all valves.

[0013] A 10KG pressure pump is installed at the water inlet pipe of the pickling device in the fan-shaped section of the continuous casting workshop.

[0014] When the pressure value of the pressure gauge is 0, it is determined that the pipeline is unobstructed.

[0015] Compared with the prior art, the above invention has the following advantages or beneficial effects: 1. Applying this cleaning device to the fan-shaped section cleaning operation can effectively, quickly and conveniently remove blockages inside the fan-shaped section, shorten the cleaning time, and is expected to save 3-5 hours in the total cleaning operation time, which can significantly improve maintenance efficiency.

[0016] 2. The acid pickling system can be used to clean pipelines that need cleaning in a single, accurate and directional manner, which can effectively solve the problem of pipeline blockage, increase the online service life of the sector section, and save investment costs. Attached Figure Description

[0017] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their focus is on illustrating the gist of the invention.

[0018] Figure 1 This is a schematic diagram of the pickling device for the sector section of the continuous casting workshop according to the present invention.

[0019] Figure 2 This is a flowchart of the pickling method for the sector section in the continuous casting workshop according to the present invention.

[0020] The markings in the diagram are as follows: 1-Water storage tank; 2-Pressure pump; 3-Pressure gauge; 4-First water receiving plate; 5-First water receiving plate interface; 6-First water receiving plate pipe valve; 7-Second water receiving plate; 8-Second water receiving plate interface; 9-Second water receiving plate pipe valve; 10-Acid pickling table inlet water receiving plate base; 11-Acid pickling table outlet water receiving plate base; 12-Inlet pipe; 13-Outlet pipe; 14-Sewage tank; 15-Sewage discharge valve. Detailed Implementation

[0021] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0022] This invention aims to create a specialized acid cleaning system using waste sector-shaped water receiving plates, pipelines, and accessories such as pressure pumps and valves. By pressurizing the pipelines with the pressure pump and coordinating with the valves, the corresponding pipelines can be pressurized and cleaned, thus thoroughly cleaning blocked pipelines and avoiding the impact of pipeline blockage.

[0023] The pickling device for the sector section of the continuous casting workshop includes a water storage tank, pickling equipment receiving plates, external water pipes, a booster pump, a pressure gauge, and control valves. The pickling equipment receiving plates consist of two plates arranged side-by-side, supported by a bracket to form two pickling platforms. The upper ends of the two receiving plates span the sector section to be cleaned, and the lower ends are connected to an inlet pipe and an outlet pipe, respectively. A pressure gauge and a booster pump are connected sequentially between the inlet pipe and the outlet of the water storage tank, and the outlet pipe is directly connected to the inlet pipe of the water storage tank. Control valves are installed on both the inlet and outlet pipes of the receiving plates.

[0024] Specific embodiments, such as Figure 1 , Figure 2 As shown, The pickling device for the sector section of the continuous casting workshop includes a water storage tank 1, a pickling equipment water receiving plate, an external water pipe, a pressure pump 2, a pressure gauge 3, and control valves; wherein, the pickling equipment water receiving plate includes two plates arranged side by side, namely a first water receiving plate 4 and a second water receiving plate 7, wherein the interface 5 of the first water receiving plate serves as the water inlet of the sector section, and the interface 8 of the second water receiving plate serves as the water outlet of the sector section. Two water receiving plates are supported by a bracket to form an acid pickling table. The acid pickling table includes an inlet water receiving plate base 10 and an outlet water receiving plate base 11. The upper ends of the two water receiving plates span the fan-shaped section for receiving and cleaning, and the lower ends are respectively connected to an inlet pipe 12 and an outlet pipe 13. A pressure gauge 3 and a booster pump 2 are connected in sequence between the inlet pipe 12 and the outlet of the water storage tank 1. The outlet pipe 13 is directly connected to the inlet pipe of the water storage tank 1. Control valves are installed on the inlet and outlet pipes of the water receiving plates. The inlet pipe of the first water receiving plate is connected to the first water receiving plate control valve 6, and the outlet pipe of the second water receiving plate is connected to the second water receiving plate control valve 9.

[0025] The water storage tank is also connected to the sewage tank 14, and the sewage tank 14 and the water storage tank 1 are controlled by a sewage discharge valve 15.

[0026] Both the inlet pipe 12 and the outlet pipe 13 are made of flexible metal hoses.

[0027] A filter device is installed at the outlet pipe end of the water storage tank 1 to prevent debris from entering the circulation pipeline.

[0028] It also includes an automatic control device, the output of which is connected to each control valve and pressure pump. The display interface of the automatic control device can set working parameters and clean the sector segment through a pre-set program.

[0029] The method for pickling the sector section in a continuous casting workshop using the above-mentioned pickling device includes the following steps: Step 1: Set up the pickling device for the sector section of the continuous casting workshop; Step 2: Pour an appropriate amount of water into the storage tank and add pickling powder to achieve the correct concentration. Step 3: Hoist the sector segment to be cleaned onto the pickling table. Connect the two ends of the sector segment to the interfaces of the water receiving plate, and check that each line is properly connected. Step 4: Open all control valves of the pickling station, start the pressure pump, and begin pickling the sector section; Step 5: Monitor the pressure value of the pressure gauge in real time to determine if there is a blockage in the pipeline. If there is a blockage, proceed to step 6; otherwise, proceed to step 7. Step 6: Turn off the control valves corresponding to each water pipe in the sector section in sequence, observe the pressure value of the pressure gauge in real time, determine the blocked pipe, pressurize and clean the blocked pipe until the blockage is cleared. When the pressure value is 0, it is determined that the pipeline is cleared, and proceed to step 7. Step 7: Perform cyclic acid washing on the sector segment according to the preset program. Control the valve opening and closing to complete the rinsing of the inner and outer arcs until the cleaning is completed, and then close all valves.

[0030] A 10KG pressure pump is installed at the water inlet pipe of the pickling device in the fan-shaped section of the continuous casting workshop.

[0031] When the pressure value of the pressure gauge is 0, it is determined that the pipeline is unobstructed.

[0032] The structural and manufacturing process requirements and functions of the pickling device are as follows: 1. Use the old fan-shaped water receiving plate to make an acid pickling water receiving platform with a height requirement of 1500mm. All welds must be fully welded.

[0033] 2. Use φ100 metal flexible hoses to make pickling pipelines, and install switch valves on the pipelines.

[0034] 3. Install a pressure gauge on the water inlet pipe to monitor the pressurization pressure value.

[0035] 4. A 10KG pressure pump is installed at the beginning of the water inlet pipe below the water tank to pressurize the pickling water.

[0036] 5. A water storage tank is installed at the beginning of the pipeline. The inside of the water storage tank is coated with anti-corrosion paint to prevent the water quality from corroding the tank after adding pickling chemicals.

[0037] 6. Install a filter device in the sewage pipe to prevent debris from clogging the pipeline in the circulating water.

[0038] 7. After the pickling cycle time reaches the required level, filter the pickling wastewater and discharge it according to the requirements. The method for determining whether the sector segment of the pipeline is blocked is as follows: After connecting the sector section to the pickling station, open the valves on the pressurization pump and all input and output pipelines of the pickling station, and check the pressure value on the pressure gauge. If the pressure value on the pressure gauge is not 0, close all valves and open the control valves at the input and output ends of one pipeline in sequence. If the pressure value of the corresponding pipeline is 0, it means that the pipeline is unblocked. Close the control valves at the input and output ends of the pipeline. Check the pressure value of all pipelines in sequence, close the control valves of all unblocked pipelines, and pressurize and clean the pipelines with non-zero pressure values. After circulating the cleaning, continue until the corresponding pressure value is 0.

[0039] The best way to use the method of the present invention is to use a special water receiving plate to make a flushing dock and then connect it to other components. It is manufactured according to the attached drawings and applied to pipeline cleaning operations during routine maintenance of the fan-shaped section. This is the best way to implement the present invention.

[0040] All specifications in this embodiment are for illustrative purposes only, and those skilled in the art can make corresponding adjustments according to specific circumstances.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0043] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0044] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0047] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A pickling method for the sector section of a continuous casting workshop, characterized by: Includes the following steps: Step 1: Set up the pickling device for the sector section of the continuous casting workshop. The pickling device for the sector section of the continuous casting workshop includes a water storage tank, a pickling equipment receiving plate, an external water pipe, a booster pump, a pressure gauge, and control valves. The pickling equipment receiving plate consists of two plates arranged side-by-side, supported by a bracket to form a pickling platform. The upper ends of the two receiving plates span the sector section to be cleaned, and the lower ends are connected to an inlet pipe and an outlet pipe, respectively. A pressure gauge and a booster pump are connected sequentially between the inlet pipe and the outlet of the water storage tank, and the outlet pipe is directly connected to the inlet pipe of the water storage tank. The pickling equipment receiving plate includes a first receiving plate and a second receiving plate. The interface of the first receiving plate serves as the inlet of the sector section, and the interface of the second receiving plate serves as the outlet of the sector section. Control valves are installed on both the inlet and outlet pipes of the receiving plates. The inlet pipe of the first receiving plate is connected to the first receiving plate control valve, and the outlet pipe of the second receiving plate is connected to the second receiving plate control valve. Step 2: Pour an appropriate amount of water into the water storage tank and add pickling powder to achieve the correct concentration. Step 3: Hoist the sector segment to be cleaned onto the pickling table. Connect the two ends of the sector segment to the interfaces of the water receiving plate, and check that each line is properly connected. Step 4: Open all control valves of the pickling station, start the pressure pump, and begin pickling the sector section; Step 5: Monitor the pressure value of the pressure gauge in real time to determine if there is a blockage in the pipeline. If there is a blockage, proceed to step 6; otherwise, proceed to step 7. Step 6: Turn off the control valves corresponding to each water pipe in the sector section in sequence, observe the pressure value of the pressure gauge in real time, determine the blocked pipe, pressurize and clean the blocked pipe until the blockage is cleared, and then proceed to Step 7. Step 7: Clean the sector segment according to the preset program until cleaning is complete, then close all valves.

2. The pickling method for the sector section of a continuous casting workshop according to claim 1, characterized in that: The water storage tank is also connected to a sewage tank, and the connection between the sewage tank and the water storage tank is controlled by a sewage discharge valve.

3. The pickling method for the sector section of a continuous casting workshop according to claim 1, characterized in that: The inlet and outlet pipes connected to the lower end of the water receiving plate are both made of flexible metal hoses.

4. The pickling method for the sector section of a continuous casting workshop according to claim 1, characterized in that: A filter device is installed at the outlet pipe end of the water storage tank to prevent impurities from entering the circulation pipeline.

5. The pickling method for the sector section of a continuous casting workshop according to claim 1, characterized in that: The pickling device for the sector section in the continuous casting workshop also includes an automatic control device. The output of the automatic control device is connected to each control valve and the pressurization pump. The display interface of the automatic control device can set working parameters and clean the sector section through a pre-set program.

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