A dust hood for a casting machine

Abstract

This utility model discloses a dust collector hood for a cast iron machine, belonging to the field of iron and steel smelting and cast iron technology. The dust collector hood for a cast iron machine includes a hood body, a traveling member at the lower end of the hood body, a box installed on the outer wall of the hood body, a dust exhaust pipe connecting the box body and the hood body, a filter screen inside the box body, an exhaust fan installed on the side of the box body away from the hood body, and a collection box for collecting dust at the lower end of the box body. By installing the box body on the outer wall of the hood body and setting up the dust exhaust pipe, filter screen, exhaust fan, collection box, closing member, and back-blowing member, a complete dust removal system is formed. This design effectively solves the problem that existing dust covers can only block but cannot effectively collect and filter flue gas dust. The combination of the filter screen and the exhaust fan can efficiently filter and exhaust dust-laden gas, prevent dust from escaping, significantly improve the dust removal effect in the molten iron pouring process of the cast iron machine, and improve the workshop environment.

Description

Technical Field

[0001] This utility model belongs to the field of iron and steel smelting and cast iron technology, and in particular relates to a dust removal hood for a cast iron machine. Background Technology

[0002] In the fields of steel smelting and cast iron production, cast iron machines are key equipment for casting molten iron. During the operation of cast iron machines, a large amount of fumes and dust are generated during the molten iron casting process. If these fumes and dust are not treated in a timely and effective manner, they will cause serious pollution to the production environment.

[0003] Currently, some dust covers exist on the market to address the issue of fumes and dust generated during the pouring of molten iron in iron casting machines. However, some of these dust covers have a relatively simple structural design, only providing basic shielding and failing to effectively collect and filter fumes and dust. Fumes and dust can easily escape through the gaps in the dust covers, still polluting the workshop environment. Secondly, although some dust covers are equipped with exhaust and filtration systems, these systems are usually connected to the dust covers via long ducts. Due to the long ducts and the considerable distance from the dust cover to the filtration system, the exhaust system responds slowly to fumes and dust, failing to capture and process newly generated fumes and dust in a timely manner, leading to the spread of some pollutants within the workshop. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a dust removal cover for a cast iron machine.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a dust removal hood for a cast iron machine, comprising a hood body, a walking component at the lower end of the hood body, a box body installed on the outer side wall of the hood body, a dust discharge pipe connecting the box body and the hood body, a filter screen inside the box body, an exhaust fan installed on the side of the box body away from the hood body, a collection box for collecting dust at the lower end of the box body, a closing component for closing the collection box on the box body, and a back-blowing component for cleaning the filter screen on the box body.

[0006] By adopting the above technical solution, the dust removal hood for cast iron machines forms a complete dust removal system by installing a box on the outer wall of the hood and setting up a dust discharge pipe, filter screen, exhaust fan, collection box, closing parts and back-blowing parts. This design can effectively solve the problem that existing dust covers can only block but cannot effectively collect and filter flue gas and dust. Overall, this design can significantly improve the dust removal effect in the molten iron pouring process of cast iron machines, improve the workshop environment, and meet the high requirements of environmental protection and production efficiency in the fields of iron and steel smelting and cast iron production.

[0007] Optionally, the walking component includes a mounting frame installed at the lower end of the cover, the mounting frame having two pairs of walking wheels, and a first motor for driving one pair of the walking wheels.

[0008] By adopting the above technical solution, the walking component uses a structure of mounting frame, walking wheels and first motor, which enables the dust hood to move automatically, further improving the flexibility and automation of the dust hood. The first motor provides power to the walking wheels, enabling the dust hood to quickly adjust its position according to the actual position and working requirements of the iron casting machine. This design not only reduces the labor intensity of manual adjustment, but also adapts more efficiently to the position changes during the operation of the iron casting machine, ensuring that the dust hood can always cover the molten iron pouring area, effectively capturing and treating the newly generated fumes and dust, and reducing the spread of pollutants in the workshop.

[0009] Optionally, the inner wall of the box is provided with a heat insulation plate, one side of the box is equipped with a cover plate, and the lower end of the box is provided with a support member, the support member including a support column, and the support column is provided with a directional wheel.

[0010] By adopting the above technical solutions, the heat insulation plate on the inner wall of the chamber can effectively prevent heat from the chamber from being conducted to the outside, protect the external components from high temperature, and extend the service life of the equipment. The cover design facilitates the inspection and maintenance of the inside of the chamber, and makes it easy to replace and clean components such as filters and backflushing parts. The support components ensure the stability of the equipment. This design not only improves the stability and service life of the dust collector, but also further enhances its flexibility and maintainability, adapting to the complexity and high temperature characteristics of the cast iron machine production environment.

[0011] Optionally, the filter screen is connected to the inner wall of the housing via a pair of connecting seats, wherein the pair of connecting seats are concave.

[0012] By adopting the above technical solution, the filter screen is connected to the inner wall of the box through a pair of concave connecting seats. This connection method is simple, firm and reliable, and can ensure that the filter screen is stably installed in the box during operation and will not loosen or shift due to the impact of gas.

[0013] Optionally, the dust exhaust pipe is equipped with an electrically controlled valve that works in conjunction with the backflushing component.

[0014] By adopting the above technical solution, an electric control valve is installed on the dust discharge pipe, which can precisely control the opening and closing of the dust discharge pipe as needed, and achieve precise coordination with the backflushing components. When backflushing to clean the filter screen, the electric control valve is closed, allowing the backflushing gas to act more effectively on the filter screen and improve the cleaning effect. During normal dust removal, the electric control valve is opened to ensure that the dust-laden gas is discharged smoothly. This design not only improves the efficiency of backflushing cleaning, but also further optimizes the operating efficiency and effect of the dust removal system, ensuring that the dust removal system can operate stably for a long time and reducing maintenance costs.

[0015] Optionally, the closure includes a second motor mounted on the housing, with a closure plate installed at the output end of the second motor. The other side of the closure plate is connected to the housing via a rotating shaft, and the size of the closure plate is adapted to the size of the ash discharge hole of the housing.

[0016] By adopting the above technical solution, the closing component adopts a structure of a second motor, a closing plate, and a rotating shaft. The second motor drives the closing plate to rotate, realizing the automatic closing and opening of the collection box. The operation is convenient and quick, and the degree of automation is high. This design further improves the environmental protection performance and reliability of the dust removal system.

[0017] Optionally, the backflushing component includes a main pipe installed inside the housing, the main pipe being located between the exhaust fan and the filter screen, the main pipe having a plurality of equally spaced air blowing pipes, the air blowing pipes having a plurality of equally spaced air blowing holes facing the filter plate respectively, the air blowing holes being trumpet-shaped, and the housing having an air pump communicating with the main pipe.

[0018] By adopting the above technical solution, the main pipe of the backflushing component is located between the exhaust fan and the filter screen, and it is equipped with equally spaced air blowing pipes and trumpet-shaped air blowing holes. This structural design enables the backflushing gas to act evenly on all parts of the filter screen, improves the cleaning effect, effectively removes dust from the filter screen, and prevents the filter screen from clogging. The trumpet-shaped air blowing holes enable a larger air blowing area, further improving the cleaning efficiency.

[0019] Optionally, the collection box is installed on the lower end face of the box body by fastening bolts, and the collection box is connected to the dust discharge hole of the box body.

[0020] By adopting the above technical solution, the collection box is installed on the lower end face of the box body by fastening bolts. This installation method facilitates the disassembly and replacement of the collection box, and makes it convenient to clean and treat the collected dust. The collection box is connected to the dust discharge hole of the box body, which can ensure that the dust enters the collection box smoothly, avoid dust leakage, ensure the dust removal effect, and facilitate the centralized collection and subsequent treatment of dust.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By installing a housing on the outer wall of the dust cover and incorporating a dust exhaust pipe, filter screen, exhaust fan, collection box, closure, and back-blowing mechanism, a complete dust removal system is formed. This design effectively solves the problem that existing dust covers can only block but not effectively collect and filter flue gas and dust. The combination of the filter screen and exhaust fan can efficiently filter and exhaust dust-laden gas, preventing dust from escaping, significantly improving the dust removal effect in the molten iron pouring process of the casting machine, and improving the workshop environment.

[0023] 2. The main pipe of the backflushing unit is located between the exhaust fan and the filter screen. It features evenly spaced air pipes and trumpet-shaped air holes. This design ensures that the backflushing air acts evenly on all parts of the filter screen, improving cleaning efficiency, effectively removing dust, and preventing filter clogging. The trumpet-shaped air holes allow for a larger airflow area, further enhancing cleaning efficiency. The air pump provides a stable air supply to the backflushing unit, ensuring smooth backflushing, extending the filter screen's lifespan, and reducing equipment maintenance costs.

[0024] 3. The main pipe of the backflushing unit is located between the exhaust fan and the filter screen. It features evenly spaced air pipes and trumpet-shaped air holes. This design ensures that the backflushing air is evenly distributed across all parts of the filter screen, improving cleaning efficiency, effectively removing dust, and preventing clogging. The trumpet-shaped air holes allow for a larger airflow area, further enhancing cleaning efficiency. The air pump provides a stable air supply to the backflushing unit, ensuring a smooth backflushing process, extending the filter screen's lifespan, and reducing equipment maintenance costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of this utility model;

[0027] Figure 3 This is a schematic diagram of the connection structure between the main pipe and the backflush pipe of this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the closed plate of this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the collection box of this utility model.

[0030] In the diagram: 1. Cover; 2. Walking component; 21. Mounting frame; 22. Walking wheel; 23. First motor; 3. Box; 301. Heat insulation board; 302. Cover plate; 303. Support component; 304. Support column; 305. Directional wheel; 4. Dust exhaust pipe; 401. Electric control valve; 5. Filter screen; 501. Connecting seat; 6. Exhaust fan; 7. Collection box; 8. Closure component; 81. Second motor; 82. Closure plate; 83. Rotating shaft; 9. Backflush component; 91. Main pipe; 92. Air blowing pipe; 93. Air blowing hole; 94. Air blowing pump. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] like Figure 1 As shown in Figure 5, the specific solution of the embodiment is as follows: A dust removal hood for a cast iron machine includes a hood body 1. The hood body 1 includes a crossbeam, a column, and a baffle installed on the crossbeam and the column. The crossbeam and the column are 200mm×100mm×12.5mm I-beams, and the baffle is a 3mm steel plate.

[0034] The hood 1 is the main body of the dust collector hood, consisting of crossbeams, columns, and baffles installed on the crossbeams and columns. It forms a relatively enclosed space to contain the fumes and dust generated during the pouring of molten iron in the casting machine, preventing them from spreading into the workshop environment. 200mm×100mm×12.5mm I-beams are used as the crossbeams and columns, and 3mm steel plates are used as baffles, giving the hood 1 sufficient strength and stability to withstand certain impacts and high-temperature environments, ensuring the reliability and durability of the dust collector hood during the operation of the casting machine.

[0035] The lower end of the cover 1 is provided with a traveling component 2. The traveling component 2 includes a mounting frame 21 installed at the lower end of the cover 1. The mounting frame 21 is provided with two pairs of traveling wheels 22. The mounting frame 21 is provided with a first motor 23 for driving one pair of the traveling wheels 22. The two pairs of traveling wheels 22 are respectively mounted on a pair of guide rails, which are 24kg light rails. The traveling component 2 is used to realize the movement of the dust removal cover, so that it can be flexibly adjusted according to the position and working requirements of the iron casting machine. The first motor 23 provides power to the traveling wheels 22, and can automatically adjust the position of the dust removal cover according to the actual position and working requirements of the iron casting machine, reducing the labor intensity of manual adjustment, ensuring that the dust removal cover can always accurately cover the molten iron casting area, effectively capturing and treating the newly generated fumes and dust, and reducing the spread of pollutants in the workshop.

[0036] The outer wall of the cover 1 is equipped with a box 3, which is used to filter and treat the dust-laden gas entering from the cover 1. The inner wall of the box 3 is provided with a heat insulation plate 301, which can effectively prevent the heat inside the box 3 from being conducted to the outside, protect the external components of the box 3 from high temperature, and extend the service life of the equipment. One side of the box 3 is equipped with a cover plate 302, which is connected to the box 3 by bolts. The design of the cover plate 302 facilitates the inspection and maintenance of the inside of the box 3, and makes it easy to replace and clean components such as the filter screen 5 and the back-blowing component 9. The lower end of the box 3 is provided with a support member 303, which includes a support column 304. The support column 304 is provided with directional wheels 305. A pair of directional wheels 305 are connected to the guide rail, which enhances the flexibility and mobility of the dust collector cover, and at the same time supports the box 3.

[0037] A dust exhaust pipe 4 connects the housing 3 and the cover 1. The dust exhaust pipe 4 is equipped with an electric control valve 401 that works in conjunction with the backflushing component 9. The electric control valve 401 can precisely control the opening and closing of the dust exhaust pipe 4 as needed, achieving precise coordination with the backflushing component 9. When backflushing to clean the filter screen 5, closing the electric control valve 401 allows the backflushing gas to act more effectively on the filter screen 5, while preventing the cleaned dust from entering the cover 1 through the dust exhaust pipe 4, thus improving the cleaning effect. During normal dust removal, opening the electric control valve 401 ensures that the dust-laden gas in the cover 1 is discharged smoothly. This design not only improves the efficiency of backflushing cleaning but also further optimizes the operating efficiency and effect of the dust removal system, ensuring that the dust removal system can operate stably for a long time and reducing maintenance costs.

[0038] The housing 3 is equipped with a filter screen 5, which is connected to the inner wall of the housing 3 through a pair of connecting seats 501. The pair of connecting seats 501 are concave. The filter screen 5 is used to filter the dust-laden gas entering from the housing 1 and remove dust and impurities. The filter screen 5 is connected to the inner wall of the housing 3 through a pair of concave connecting seats 501. This connection method is simple, strong and reliable, and can ensure that the filter screen 5 is stably installed in the housing 3 during operation and will not loosen or shift due to the impact of gas. It also provides portability for the disassembly and replacement of the filter screen 5.

[0039] An exhaust fan 6 is installed on the side of the housing 3 away from the cover 1. The exhaust fan 6 is connected to the exhaust port of the housing 3. The exhaust fan 6 is used to generate negative pressure to introduce dust-laden gas from the cover 1 into the housing 3 for filtration. The exhaust fan 6 enhances gas flow, allowing the dust-laden gas to enter the housing 3 more smoothly for filtration, improving dust removal efficiency, ensuring that the dust hood can capture and treat the fumes and dust generated during molten iron casting in a timely manner, reducing the residence time of pollutants in the workshop, and further improving the workshop environment.

[0040] The lower end face of the housing 3 is provided with a collection box 7 for collecting dust. The collection box 7 is installed on the lower end face of the housing 3 by fastening bolts. The collection box 7 is connected to the dust discharge hole of the housing 3. The installation method of the collection box 7 is convenient for disassembly and replacement, and facilitates the cleaning and treatment of the collected dust. The connection between the collection box 7 and the dust discharge hole of the housing 3 can ensure that the dust enters the collection box 7 smoothly, avoid dust leakage, ensure the dust removal effect, and facilitate the centralized collection and subsequent treatment of dust, further improving the environmental protection performance and working efficiency of the entire dust removal system.

[0041] The housing 3 is provided with a closing member 8 for closing the collection box 7. The closing member 8 is located above the collection box 7. The closing member 8 includes a second motor 81 installed on the housing 3. A closing plate 82 is installed at the output end of the second motor 81. The other side of the closing plate 82 is connected to the housing 3 through a rotating shaft 83. The size of the closing plate 82 is adapted to the size of the ash discharge hole of the housing 3. The closing member 8 can automatically control the closing and opening of the collection box 7. The operation is convenient and quick, with a high degree of automation. The closing plate 82 can tightly close the ash discharge hole to prevent dust in the collection box 7 from entering the filter screen 5 during filtration.

[0042] The housing 3 is provided with a back-blowing component 9 for cleaning the filter screen 5. The back-blowing component 9 includes a main pipe 91 installed inside the housing 3. The main pipe 91 is located between the exhaust fan 6 and the filter screen 5. The main pipe 91 is provided with a plurality of equally spaced air blowing pipes 92. The air blowing pipes 92 are provided with a plurality of equally spaced air blowing holes 93 facing the filter plate. The air blowing holes 93 are funnel-shaped. The housing 3 is provided with an air pump 94 that communicates with the main pipe 91.

[0043] The backflushing gas can act evenly on all parts of the filter screen 5, improving the cleaning effect, effectively removing dust from the filter screen 5, preventing the filter screen 5 from clogging, and the funnel-shaped air holes 93 can make the air blowing area larger, further improving the cleaning efficiency. The air pump 94 provides a stable air source for the backflushing component 9, ensuring the smooth progress of the backflushing process, extending the service life of the filter screen 5, reducing equipment maintenance costs, ensuring the long-term stable operation of the dust removal system, and further improving the overall performance and efficiency of the dust removal system.

[0044] The vacuuming step and filter 5 cleaning step in the above embodiments are as follows:

[0045] Vacuuming steps;

[0046] The first motor 23 is started by controlling the control device. The first motor 23 drives the walking wheel 22 to move on the guide rail, and simultaneously drives the dust hood to move to a suitable position in the molten iron pouring area of ​​the iron casting machine, so as to ensure that the dust hood can completely cover the molten iron pouring area.

[0047] Once the dust removal hood is moved to the designated position, the exhaust fan 6 is started, and the dust-containing gas in the hood 1 enters the housing 3 through the dust exhaust pipe 4.

[0048] After the dust-laden gas enters the housing 3, it is filtered through the filter screen 5 and then discharged through the exhaust fan 6.

[0049] Filter cleaning steps 5:

[0050] When it is necessary to clean the filter screen 5, the electric control valve 401 on the dust discharge pipe 4 is closed by the control device.

[0051] Start the air pump 94 connected to the main pipe 91. The compressed air generated by the air pump 94 enters a number of equally spaced air pipes 92 through the main pipe 91. The air pipes 92 are provided with a number of equally spaced air holes 93 to backflush the filter screen 5.

[0052] After the air pump 94 runs for a period of time, it stops running and the second motor 81 is started. The second motor 81 drives the closing plate 82 to flip, opening the collection box 7. The cleaned dust falls into the collection box 7. After a period of time, the closing plate 82 is closed. The collection box 7 is cleaned regularly.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust collector hood for a cast iron machine, characterized in that, The device includes a cover, a walking component at the lower end of the cover, a box installed on the outer side wall of the cover, a dust exhaust pipe connecting the box and the cover, a filter screen inside the box, an exhaust fan installed on the side of the box away from the cover, a dust collection box at the lower end of the box, a closing component on the box to close the collection box, and a back-blowing component on the box to clean the filter screen.

2. The dust collector hood for a cast iron machine according to claim 1, characterized in that: The walking component includes a mounting frame installed at the lower end of the cover, the mounting frame having two pairs of walking wheels, and a first motor for driving one pair of the walking wheels.

3. The dust collector hood for a cast iron machine according to claim 1, characterized in that: The inner wall of the box is provided with a heat insulation plate, one side of the box is equipped with a cover plate, and the lower end of the box is provided with a support member, which includes a support column and a directional wheel on the support column.

4. The dust collector cover for a cast iron machine according to claim 1, characterized in that: The filter screen is connected to the inner wall of the housing via a pair of connecting seats, and the pair of connecting seats are concave.

5. A dust collector cover for a cast iron machine according to claim 1, characterized in that: The dust exhaust pipe is equipped with an electric control valve that works in conjunction with the back-blowing component.

6. A dust collector cover for a cast iron machine according to claim 1, characterized in that: The closure component includes a second motor mounted on the housing. A closure plate is mounted on the output end of the second motor. The other side of the closure plate is connected to the housing via a rotating shaft. The size of the closure plate is adapted to the size of the ash discharge hole of the housing.

7. A dust collector cover for a cast iron machine according to claim 1, characterized in that: The backflush component includes a main pipe installed inside the housing, the main pipe being located between the exhaust fan and the filter screen, the main pipe having several equally spaced air blowing pipes, the air blowing pipes having several equally spaced air blowing holes facing the filter plate, the air blowing holes being trumpet-shaped, and the housing having an air pump communicating with the main pipe.

8. A dust collector cover for a cast iron machine according to claim 1, characterized in that: The collection box is installed on the lower end face of the box body by fastening bolts, and the collection box is connected to the dust discharge hole of the box body.

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