Pulse bag type dust collector for stainless steel smelting

Abstract

The utility model relates to the technical field of stainless steel smelting, in particular to a pulse bag type dust collector for stainless steel smelting, which comprises a dust collection box, a clean chamber is fixedly mounted at the top end of the dust collection box, an ash hopper is communicated with the bottom end of the dust collection box, and a partition plate is fixedly mounted between the dust collection box and the clean chamber. A plurality of pipe grooves are formed in the middle of the partition plate side by side, and filter bags are fixedly mounted at the bottom ends of the pipe grooves of the partition plate; and one end of the interior of the clean chamber is communicated with a pulse tube. The pulse tube, the connecting piece, the support, the connecting rod and the poking pieces are used in cooperation, when the push rod is pushed forwards, the connecting rod is driven by the connecting piece to move synchronously, the connecting rod drives the poking pieces to flap the outer side of the bottom end of the filter bag through the support, and when the pulse tube stops spraying air, the compressed spring can drive the connecting piece to reset. Further, the stirring piece is controlled to flap the filter bag on one side again, so that residual particulate matters on the outer side of the bottom end of the filter bag can be shaken off into an ash hopper during ash removal, and the aim of conveniently removing the ash is fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel smelting, in particular to a pulse bag dust collector for stainless steel smelting. Background Art

[0002] In stainless steel smelting, the smelting and heat treatment process in the furnace will produce a large amount of smoke and gas, including oxides of metals such as iron, chromium, nickel and other solid particles. If these particles are discharged into the atmosphere, they will pollute the environment and may have an adverse effect on the health of workers. The pulse bag dust collector can effectively capture smoke and particulate matter through its internal filter bag structure and pulse cleaning system, so that the emitted flue gas meets environmental protection standards.

[0003] For example, a pulse bag dust collector disclosed in the authorization announcement number CN218794610U has a shell, a top cover is fixed on the top of the shell, a clean air outlet is arranged on one side wall of the shell, a blow pipe is installed at the top of the shell facing the clean air outlet, and an electromagnetic pulse valve is installed on the side of the blow pipe away from the clean air outlet. After adopting the above technical scheme, the beneficial effect of the utility model is that when the dust-containing gas after preliminary filtration enters the filter bag again, only a small amount of dust will be attached to the surface of the filter bag, which effectively reduces the number of times the filter bag is sprayed and cleaned.

[0004] Although the above patent can reduce the number of times the filter bag is sprayed for cleaning, during pulse cleaning, when the gas enters the bottom of the filter bag, the pressure gradually decreases, resulting in the inability of particles on the outer side of the bottom of the filter bag to fall off effectively. Utility Model Content

[0005] The utility model aims to provide a pulse bag dust collector for stainless steel smelting to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pulse bag dust collector for stainless steel smelting, comprising

[0008] A dust removal box, wherein a clean room is fixedly installed at the top of the dust removal box, an ash hopper is connected to the bottom of the dust removal box, a partition is fixedly installed between the dust removal box and the clean room, a plurality of pipe grooves are arranged side by side in the middle of the partition, and a filter bag is fixedly installed at the bottom of the partition located at the pipe groove;

[0009] One end of the clean room is connected to a pulse tube, and a plurality of nozzles are arranged side by side at the bottom of the pulse tube. The bottom of the nozzle passes through the pipe groove and is located inside the filter bag. The dust removal box is located outside the bottom of the filter bag and is provided with a beating mechanism.

[0010] Preferably, the flapping mechanism comprises a connecting rod, a bracket and a paddle, the bracket is movably mounted at the lower part of the dust removal box, a plurality of paddles are arranged side by side at the top of the bracket, the bottom end of the filter bag is located between two paddles, and the connecting rod is fixedly mounted on the other side of the bracket;

[0011] Preferably, the slapping mechanism further comprises a push rod, a piston and a connecting piece, the bottom end of the connecting piece is fixedly connected to the outside of the other side of the connecting rod, the push rod is movably sleeved inside the pulse tube near the connecting piece, a piston is arranged at one end of the push rod located inside the pulse tube, the other end of the push rod is fixedly connected to the connecting piece, and a spring is arranged between the piston and the pulse tube;

[0012] Preferably, a transmission housing is fixedly installed on the outside of the dust removal box and the clean room on one side close to the connecting piece, and the connecting piece is movably connected to the transmission housing;

[0013] Preferably, a rectifier plate is fixedly installed between the dust removal box and the interior of the ash hopper, and a waste discharge port is provided in the middle of the bottom end of the ash hopper;

[0014] Preferably, an air inlet is provided at the outside of the bottom end of the dust removal box on a side away from the transmission housing, and an air outlet is provided at the top end of the clean room on a side close to the transmission housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A pulse bag dust collector for stainless steel smelting is used in conjunction with a pulse tube, a connector, a bracket, a connecting rod and a paddle. When the push rod is pushed forward, the connecting rod is driven to move synchronously through the connecting rod, and the connecting rod drives a number of paddles to beat the outside of the bottom end of the filter bag through the bracket. When the pulse tube stops jetting, the compressed spring will drive the connector to reset, and then control the paddle to beat one side of the filter bag again. In this way, when cleaning, the particles remaining on the outside of the bottom end of the filter bag can be shaken off into the ash hopper, thereby achieving the purpose of facilitating cleaning.

[0017] 2. This pulse bag dust collector for stainless steel smelting is used in conjunction with a pulse tube, a piston, a push rod and a spring. The device uses the power generated by the pulse tube jet to drive the piston and the push rod to move, and then drives the connecting rod to move synchronously through the connecting piece. In this way, the kinetic energy generated by the pulse tube can be recycled, thereby achieving the purpose of energy saving and environmental protection in the process of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the filter bag installation structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the pulse tube of the utility model;

[0021] Figure 4 For the utility model Figure 3 Enlarged schematic diagram at point A in the middle.

[0022] In the figure: 1. dust removal box; 2. clean room; 3. ash hopper; 4. partition; 5. pipe trough; 6. filter bag; 7. pulse tube; 8. nozzle; 9. connecting rod; 10. bracket; 11. paddle; 12. push rod; 13. piston; 14. connecting part; 15. transmission housing; 16. rectifier plate; 17. exhaust port; 18. air inlet; 19. air outlet; 20. spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0024] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0025] A pulse bag dust collector for stainless steel smelting, comprising a dust box 1, a clean chamber 2 is fixedly installed on the top of the dust box 1, an ash hopper 3 is connected to the bottom of the dust box 1, a partition 4 is fixedly installed between the dust box 1 and the clean chamber 2, a plurality of pipe grooves 5 are arranged side by side in the middle of the partition 4, a filter bag 6 is fixedly installed at the bottom end of the partition 4 located at the pipe groove 5, an inner end of the clean chamber 2 is connected with a pulse tube 7, a plurality of nozzles 8 are arranged side by side at the bottom end of the pulse tube 7, the bottom end of the nozzle 8 passes through the pipe groove 5 and is located inside the filter bag 6, a flapping mechanism is arranged on the outer side of the bottom end of the dust box 1 located at the filter bag 6, the flapping mechanism comprises a connecting rod 9, a bracket 10 and a paddle 11, the bracket 10 is movably installed at the lower part of the dust box 1, a plurality of paddles 11 are arranged side by side at the top of the bracket 10, the bottom end of the filter bag 6 is located between two paddles 11, and a connecting rod 9 is fixedly installed on the other side of the bracket 10;

[0026] In this embodiment, the pulse tube 7 pushes the piston 13 when jetting, and the piston 13 drives the push rod 12 to move to one side while compressing the spring 20. When the push rod 12 is pushed forward, it drives the connecting rod 9 to move synchronously through the connecting piece 14. The connecting rod 9 drives a plurality of paddles 11 to beat the outer side of the bottom end of the filter bag 6 through the bracket 10. When the pulse tube 7 stops jetting, the compressed spring 20 will drive the connecting piece 14 to reset, and then control the paddle 11 to beat one side of the filter bag 6 again. In this way, when cleaning, the particles remaining on the outer side of the bottom end of the filter bag 6 can be shaken off into the ash hopper 3, thereby achieving the purpose of facilitating cleaning.

[0027] like Figure 3 and Figure 4 As shown, the beating mechanism also includes a push rod 12, a piston 13 and a connecting piece 14. The bottom end of the connecting piece 14 is fixedly connected to the outside of the other side of the connecting rod 9. The push rod 12 is movably sleeved inside the pulse tube 7 near the connecting piece 14. The push rod 12 is located at one end of the pulse tube 7. The piston 13 is arranged. The other end of the push rod 12 is fixedly connected to the connecting piece 14. A spring 20 is arranged between the piston 13 and the pulse tube 7. A transmission housing 15 is fixedly installed on the outside of the dust removal box 1 and the clean room 2 near the connecting piece 14. The connecting piece 14 is movably connected to the transmission housing 15.

[0028] In this embodiment, the device utilizes the power generated by the jet of the pulse tube 7 to drive the piston 13 and the push rod 12 to move, and then drives the connecting rod 9 to move synchronously through the connecting piece 14. In this way, the kinetic energy generated by the pulse tube 7 can be recycled, thereby achieving the purpose of energy saving and environmental protection in the process of cleaning.

[0029] like Figure 2 As shown, a rectifying plate 16 is fixedly installed between the dust removal box 1 and the inside of the ash hopper 3, a waste outlet 17 is provided at the middle of the bottom end of the ash hopper 3, an air inlet 18 is provided at the outside of the bottom end of the dust removal box 1 away from the transmission housing 15, and an air outlet 19 is provided at the top end of the clean room 2 close to the transmission housing 15;

[0030] In this embodiment, the particles after pulse cleaning and the particles knocked off by the paddle 11 fall on the rectifier plate 16, and then slide along the rectifier plate 16 into the ash hopper 3. In this way, during negative pressure dust removal, it can be prevented that a large amount of dust accumulated at the bottom of the ash hopper 3 floats and covers the outside of the filter bag 6 again.

[0031] Working principle: During dust removal, the exhaust gas generated by stainless steel smelting enters the dust removal box 1 from the air inlet 18. After the negative pressure, the exhaust gas is filtered by several filter bags 6. The clean air enters the clean room 2 and is discharged from the air outlet 19. The dust covers the outer surface of the filter bag 6. When the pulse tube 7 sprays gas, it is sprayed into the filter bag 6 through several nozzles 8. The gas blows the particles covered on the outer surface of the filter bag 6 into the ash hopper 3, and the pulse tube 7 pushes the piston 13 when spraying. The piston 13 drives the push rod 12 to move to one side and compresses the spring 20 at the same time. When the push rod 12 is pushed forward, it drives the connecting rod 9 to move synchronously through the connecting piece 14. The connecting rod 9 drives several paddles 11 to beat the outer side of the bottom end of the filter bag 6 through the bracket 10. When the pulse tube 7 stops spraying, the compressed spring 20 will drive the connecting piece 14 to reset, and then control the paddle 11 to beat one side of the filter bag 6 again, so that the particles remaining on the outer side of the bottom end of the filter bag 6 can be shaken off into the ash hopper 3 during cleaning.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pulse bag dust collector for stainless steel smelting, characterized by: include A dust removal box (1), wherein a clean room (2) is fixedly mounted on the top of the dust removal box (1), an ash hopper (3) is connected to the bottom of the dust removal box (1), a partition (4) is fixedly mounted between the dust removal box (1) and the clean room (2), a plurality of pipe grooves (5) are arranged side by side in the middle of the partition (4), and a filter bag (6) is fixedly mounted on the bottom of the pipe groove (5) of the partition (4); One end of the clean room (2) is connected to a pulse tube (7), a plurality of nozzles (8) are arranged side by side at the bottom end of the pulse tube (7), the bottom ends of the nozzles (8) pass through the pipe groove (5) and are located inside the filter bag (6), and the dust removal box (1) is located outside the bottom end of the filter bag (6) and is provided with a beating mechanism; The flapping mechanism comprises a connecting rod (9), a bracket (10) and a paddle (11); the bracket (10) is movably mounted at the lower part of the dust removal box (1); a plurality of paddles (11) are arranged side by side at the top of the bracket (10); the bottom end of the filter bag (6) is located between two paddles (11); and the connecting rod (9) is fixedly mounted on the other side of the bracket (10); The beating mechanism also includes a push rod (12), a piston (13) and a connecting piece (14). The bottom end of the connecting piece (14) is fixedly connected to the outside of the other side of the connecting rod (9). The push rod (12) is movably sleeved inside the pulse tube (7) on one side close to the connecting piece (14). A piston (13) is arranged at one end of the push rod (12) located inside the pulse tube (7). The other end of the push rod (12) is fixedly connected to the connecting piece (14). A spring (20) is arranged between the piston (13) and the pulse tube (7).

2. The pulse bag dust collector for stainless steel smelting according to claim 1 is characterized in that: A transmission housing (15) is fixedly mounted on the outside of the dust removal box (1) and the clean room (2) on one side close to the connecting piece (14), and the connecting piece (14) is movably connected to the transmission housing (15).

3. The pulse bag dust collector for stainless steel smelting according to claim 1 is characterized in that: A rectifying plate (16) is fixedly installed between the dust removal box (1) and the interior of the ash hopper (3), and a waste discharge port (17) is provided in the middle of the bottom end of the ash hopper (3).

4. The pulse bag dust collector for stainless steel smelting according to claim 2 is characterized in that: The dust removal box (1) is provided with an air inlet (18) at the bottom of a side away from the transmission housing (15). An air outlet (19) is provided at the top of one side of the clean room (2) close to the transmission housing (15).

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