Telescopic continuous casting machine dust removal pipeline

Abstract

The utility model relates to the technical field of pipeline dust removal, in particular to a telescopic continuous casting machine dust removal pipeline which comprises an outer pipe and an inner pipe sleeved in the outer pipe, the outer pipe is communicated with a first dust removal cloth bag, the inner pipe is communicated with an inner pipe of a telescopic air inlet pipe, and an outer pipe of the telescopic air inlet pipe is communicated with an air outlet pipe of a continuous casting machine. The inner pipe is sleeved with a piston ring and an annular plate, the piston ring is in extrusion contact with the inner wall of the outer pipe, the annular plate is fixedly connected with a brush in the circumferential direction, the annular plate is located on the right side of the piston ring, and the inner pipe is driven by a driving device to slide along the outer pipe. According to the application, the inner pipe moves in the outer pipe to drive the brush to move in the outer pipe, so that dust removal of the inner wall of the outer pipe is realized, dust accumulation of the inner wall of the outer pipe at the joint of the outer pipe and the dust removal cloth bag is prevented, normal ventilation is ensured, and treatment of flue gas discharged by the continuous casting machine is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline dust removal, in particular to a telescopic continuous casting machine dust removal pipeline. Background Art

[0002] The production process of continuously pouring high-temperature molten steel into ingots with a certain cross-sectional shape and certain size specifications is called continuous steel casting, and the equipment required to complete this process is called a continuous casting equipment set, that is, a continuous casting machine.

[0003] Among them, the continuous casting machine will generate a large amount of smoke when in use. The smoke is transported to the conveying pipe along the outlet pipe of the continuous casting machine and filtered out through the dust bag through the conveying pipe. When the smoke passes through the dust bag, it is blocked by the dust bag, and the dust in the smoke will scatter at the connection between the conveying pipe and the dust bag. Over time, a large amount of dust will accumulate on the inner wall of the conveying pipe near the dust bag, which will cause poor circulation in the conveying pipe and affect the filtering of smoke and dust. Utility Model Content

[0004] The utility model provides a telescopic dust removal pipeline for a continuous casting machine, which is used to solve the defects in the prior art.

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

[0006] A telescopic continuous casting machine dust removal duct comprises an outer tube and an inner tube sleeved in the outer tube, the outer tube is connected to a first dust removal bag, the inner tube is connected to the inner tube of a telescopic air inlet pipe, the outer tube of the telescopic air inlet pipe is connected to an air outlet pipe of the continuous casting machine, a piston ring and an annular plate are sleeved on the inner tube, the piston ring is in compression contact with the inner wall of the outer tube, a brush is fixedly connected to the annular plate along its circumference, the annular plate is located on the right side of the piston ring, and the inner tube is driven by a driving device to slide along the outer tube.

[0007] When the present application is in use, the flue gas enters the telescopic air inlet pipe through the continuous casting machine outlet pipe, enters the inner pipe through the telescopic air inlet pipe, and enters the first dust bag through the inner pipe and the outer pipe to achieve dust removal. After a period of use, the driving device is started, and the driving device drives the inner pipe to move in the outer pipe and move toward the dust bag, and the telescopic air inlet pipe is extended, and the movement of the inner pipe drives the piston ring and the annular plate to move synchronously. The piston ring can prevent air leakage, and the movement of the annular plate drives the movement of the brush to achieve scraping of the inner wall of the outer pipe, and when the inner pipe moves to the end of the outer pipe, the driving device is paused, and the inner pipe stops moving, so as to achieve cleaning of the inner wall of the outer pipe, especially the inner wall of the connection between the outer pipe and the dust bag, and the scraped dust enters the first dust bag driven by the gas after the inner pipe returns.

[0008] Preferably, the driving device is an electric telescopic rod, which is parallel to the outer tube, one end of which is fixedly connected to the outer tube, and the other end of which is fixedly connected to the inner tube. The shortening of the electric telescopic rod drives the inner tube to move toward the dust bag, and the extension of the electric telescopic rod drives the inner tube back.

[0009] Preferably, the annular plate is also fixedly connected with a rag along its circumference, and the rag is located between the piston ring and the brush. The rag can further clean the inner wall cleaned by the brush, thereby preventing the inner wall of the outer tube from damaging the piston ring and causing air leakage.

[0010] Preferably, the outer pipe includes a left branch pipe and a right branch pipe, the left branch pipe is connected to the inner pipe of the telescopic air inlet pipe, the right branch pipe is connected to the first dust bag and is detachably connected, and the left branch pipe and the right branch pipe are detachably fixedly connected via a flange. The left branch pipe and the right branch pipe can be disassembled, and the right branch pipe can be removed from the dust bag, so that when the continuous casting machine is not in use, it can be disassembled through the flange and the inner pipe can be moved out of the left branch pipe, so that the rag and the brush can be cleaned, and the rag and the brush can be used for a long time.

[0011] Preferably, the right end of the inner tube is connected with a bell mouth which is narrow on the left and wide on the right, and the diameter of the right end face of the bell mouth is smaller than the inner diameter of the outer tube. The bell mouth can further facilitate the gas to blow and scrape off the dust on the inner wall of the outer tube.

[0012] Preferably, the continuous casting machine outlet pipe is connected to the air inlet end of the three-way valve, the two air outlet ends of the three-way valve are respectively connected to the branch air pipe and the outer pipe of the telescopic air inlet pipe, and the outlet end of the branch air pipe is connected to the second dust removal bag. When the continuous casting machine is in working state, when the brush or piston ring fails, the three-way valve can be used to allow the flue gas to temporarily enter the second dust removal bag through the branch air pipe, thereby achieving dust removal of the flue gas and avoiding the need to suspend the continuous casting machine to repair damaged parts.

[0013] The beneficial effects of the utility model are as follows: when the present application is used, the inner tube moves inside the outer tube to drive the brush to move inside the outer tube, thereby achieving dust removal on the inner wall of the outer tube, thereby preventing dust accumulation on the inner wall of the outer tube at the connection between the outer tube and the dust removal bag, thereby ensuring normal ventilation, which is beneficial to the treatment of smoke exhaust from the continuous casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1It is a structural schematic diagram of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of I.

[0017] As shown in the figure:

[0018] 1. Inner tube, 2. Outer tube, 3. Telescopic air inlet pipe, 4. First dust bag, 5. Piston ring, 6. Ring plate, 7. Brush, 8. Electric telescopic rod, 9. Rag, 10. Three-way valve, 11. Branch air pipe, 12. Second dust bag, 21. Left branch pipe, 22. Flange, 23. Right branch pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] A telescopic continuous casting machine dust removal pipeline, such as Figure 1 and Figure 2 As shown. It includes an outer tube 2 and an inner tube 1 sleeved in the outer tube 2, the outer tube 2 is connected to the first dust removal bag 4, the inner tube 1 is connected to the inner tube 1 of the telescopic air inlet pipe 3, the outer tube 2 of the telescopic air inlet pipe 3 is connected to the air outlet pipe of the continuous casting machine, the inner tube 1 is sleeved with a piston ring 5 and an annular plate 6, the piston ring 5 is in compression contact with the inner wall of the outer tube 2, the annular plate 6 is fixedly connected with a brush 7 along its circumference, the annular plate 6 is located on the right side of the piston ring 5, the inner tube 1 is driven by a driving device to slide along the outer tube 2, the driving device is an electric telescopic rod 8, the electric telescopic rod 8 is parallel to the outer tube 2, one end of the electric telescopic rod 8 is fixedly connected to the outer tube 2, and the other end is vertically connected to a connecting plate, and the connecting plate is vertically and fixedly connected to the inner tube 1.

[0021] When the present application is in use, the flue gas enters the telescopic air inlet pipe 3 through the continuous casting machine outlet pipe, enters the inner tube 1 through the telescopic air inlet pipe 3, and enters the first dust bag 4 through the inner tube 1 and the outer tube 2 to achieve dust removal. Among them, at this moment, the telescopic air inlet pipe 3 is in a shortened state, and most of the inner tube 1 is located outside the outer tube 2. After a period of use, the electric telescopic rod 8 is started, and the electric telescopic rod 8 shortens to drive the inner tube 1 to move in the outer tube 2 and move toward the dust bag, while the telescopic air inlet pipe 3 is extended. The movement of the inner tube 1 drives the piston ring 5 and the annular plate 6 to move synchronously. The piston ring 5 can prevent air leakage, and the movement of the annular plate 6 drives the movement of the brush 7 to achieve scraping of the inner wall of the outer tube 2. When the inner tube 1 moves to the end of the outer tube 2, the electric telescopic rod 8 pauses, and the inner tube 1 stops moving, so as to achieve cleaning of the inner wall of the outer tube 2, especially the inner wall of the connection between the outer tube 2 and the dust bag. Then the electric telescopic rod 8 is started again and extended, and the inner tube 1 returns to its original position. After the inner tube 1 returns, the scraped dust enters the first dust removal bag 4 driven by the gas.

[0022] After the brush 7 cleans the inner wall of the outer tube 2, some residue particles may remain. Therefore, when the piston ring 5 passes through, it is very likely to wear the piston ring 5, resulting in a poor sealing effect of the piston ring 5. To solve this problem, the annular plate 6 is also fixedly connected with a rag 9 along its circumference, and the rag 9 is located between the piston ring 5 and the brush 7. The rag 9 can further clean the inner wall cleaned by the brush 7, thereby preventing the inner wall of the outer tube 2 from damaging the piston ring 5 and causing air leakage.

[0023] The outer tube 2 includes a left branch tube 21 and a right branch tube 23. The left branch tube 21 is connected to the inner tube 1 of the telescopic air inlet pipe 3, and the right branch tube 23 is connected to the first dust bag 4 and is detachably connected. The left branch tube 21 and the right branch tube 23 are detachably fixedly connected via a flange 22. The left branch tube 21 and the right branch tube 23 can be disassembled, and the right branch tube 23 can be removed from the dust bag, so that when the continuous casting machine is not in use, it can be disassembled through the flange 22 and the inner tube 1 is moved out of the left branch tube 21, so that the rag 9 and the brush 7 can be cleaned, and the rag 9 and the brush 7 can be used for a long time.

[0024] The right end of the inner tube 1 is connected with a bell mouth which is narrow on the left and wide on the right, and the diameter of the right end face of the bell mouth is smaller than the inner diameter of the outer tube 2. The bell mouth can further facilitate the dust that is scraped off and located on the inner wall of the outer tube 2 by gas blowing.

[0025] The continuous casting machine outlet pipe is connected to the air inlet end of the three-way valve 10, and the two air outlet ends of the three-way valve 10 are respectively connected to the branch air pipe 11 and the outer pipe 2 of the telescopic air inlet pipe 3, and the outlet end of the branch air pipe 11 is connected to the second dust removal bag 12. When the brush 7 or the piston ring 5 fails in the working state of the continuous casting machine, the three-way valve 10 can be used to allow the flue gas to temporarily enter the second dust removal bag 12 through the branch air pipe 11, thereby achieving dust removal of the flue gas and avoiding the need to suspend the continuous casting machine to repair damaged parts.

[0026] In the use of the present application, the inner tube 1 is moved inside the outer tube 2 to drive the brush 7 to move inside the outer tube 2, thereby removing dust from the inner wall of the outer tube 2, thereby preventing dust accumulation on the inner wall of the outer tube 2 at the connection between the outer tube 2 and the dust removal bag, thereby ensuring normal ventilation, which is beneficial to the treatment of smoke exhaust from the continuous casting machine.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A telescopic dust removal pipeline for a continuous casting machine, characterized in that: It includes an outer tube and an inner tube sleeved in the outer tube, the outer tube is connected to the first dust removal bag, the inner tube is connected to the inner tube of the telescopic air inlet pipe, the outer tube of the telescopic air inlet pipe is connected to the air outlet pipe of the continuous casting machine, a piston ring and an annular plate are sleeved on the inner tube, the piston ring is in compression contact with the inner wall of the outer tube, a brush is fixedly connected to the annular plate along its circumference, the annular plate is located on the right side of the piston ring, and the inner tube is driven by a driving device to slide along the outer tube.

2. The telescopic dust removal duct for continuous casting machine according to claim 1, characterized in that: The driving device is an electric telescopic rod, which is parallel to the outer tube, one end of the electric telescopic rod is fixedly connected to the outer tube, and the other end of the electric telescopic rod is fixedly connected to the inner tube.

3. The telescopic dust removal duct for continuous casting machine according to claim 2 is characterized in that: The annular plate is also fixedly connected with a rag along its circumference, and the rag is located between the piston ring and the brush.

4. The telescopic dust removal duct for continuous casting machine according to claim 3 is characterized in that: The outer pipe includes a left branch pipe and a right branch pipe. The left branch pipe is connected to the inner pipe of the telescopic air inlet pipe, and the right branch pipe is connected to the first dust removal bag and is detachably connected. The left branch pipe and the right branch pipe are detachably fixedly connected through a flange.

5. The telescopic dust removal duct for continuous casting machine according to claim 4, characterized in that: The right end of the inner tube is connected with a bell mouth which is narrow on the left and wide on the right, and the diameter of the right end surface of the bell mouth is smaller than the inner diameter of the outer tube.

6. The telescopic dust removal duct for continuous casting machine according to claim 4, characterized in that: The continuous casting machine air outlet pipe is connected to the air inlet end of the three-way valve, the two air outlet ends of the three-way valve are respectively connected to the branch air pipe and the outer pipe of the telescopic air inlet pipe, and the branch air pipe outlet end is connected to the second dust removal bag.

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