CN113151634A - Fixed roof closed dust hood for converter tertiary dust removal system - Google Patents
Fixed roof closed dust hood for converter tertiary dust removal system Download PDFInfo
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- CN113151634A CN113151634A CN202110416335.1A CN202110416335A CN113151634A CN 113151634 A CN113151634 A CN 113151634A CN 202110416335 A CN202110416335 A CN 202110416335A CN 113151634 A CN113151634 A CN 113151634A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention is suitable for the technical field of dust hood equipment, and provides a fixed roof closed dust hood for a converter tertiary dust removal system. According to the invention, larger particle impurities in gas can be filtered through the multi-mesh filter screen, so that the waste gas is cleaned more quickly in the later period, the cost of the later-period filtering work is reduced, the motor can drive the cleaning brush to scrape on the surface of the multi-mesh filter screen, the situation that the gas cannot pass through due to blockage is prevented, the fan blades are driven to rotate at the same time, the gas flow velocity in the roof dust hood can be accelerated, the dust amount in the roof dust hood can be monitored through the dust sensor arranged in the roof dust hood, the motor is controlled to stop working through a preset program in the PLC control board, when no dust exists in a workshop, an electric appliance stops working, and the power consumption cost can be saved.
Description
Technical Field
The invention belongs to the technical field of dust hood equipment, and particularly relates to a fixed roof closed dust hood for a converter tertiary dust removal system.
Background
In the smelting process and the charging process of a converter in a steel converter workshop, the refining furnace and the ladle inspection are all provided with smoke escape in the links of charging, molten iron adding, blowing and the like in the production process. In addition, the ladle also has a large amount of smoke and dust to give off in the course of transporting, and the flue gas drifts away and causes the inside environmental pollution in workshop in the workshop, and gives off through workshop top skylight along with the smoke and dust rises, forms red smoke column at converter workshop top, and serious polluted environment causes the harm for the enterprise image, singly relies on original secondary to remove dust can't collect the smoke and dust that gives off totally, consequently need install cubic dust pelletizing system at the workshop top for administering the pollution.
What have adopted is that the top installs the suction hood additional in the workshop now, but this type of suction hood is bulky, and it is big to occupy the inside top space in workshop, influences the round trip movement of driving, and dust absorption effect is poor, and inspiratory smoke and dust granule is many, easily piles up in the suction hood, causes the jam, does not possess the function of preventing blockking up.
Disclosure of Invention
The invention provides a fixed roof closed dust hood for a converter tertiary dust removal system, and aims to solve the problems that the existing workshop is additionally provided with a dust hood at the top, the size is large, the occupied space at the top inside the workshop is large, the back-and-forth movement of a travelling crane is influenced, the dust absorption effect is poor, more dust particles are absorbed, the dust particles are easy to accumulate in the dust hood to cause blockage, and the function of blockage prevention is not realized.
The invention is realized in such a way that a fixed roof closed dust hood for a converter tertiary dust removal system comprises a roof body, wherein the bottom end of the roof body is welded and connected with a roof steel frame, the surface of the roof steel frame is fixedly connected with an indoor dust hood, the top end of the roof steel frame is fixedly connected with the roof dust hood, one side of the top end of the roof dust hood is embedded and connected with a connecting pipe, an external connecting pipe is sleeved and installed inside the connecting pipe, the bottom end of the inner wall of the roof dust hood is fixedly connected with a dust sensor, one side of the inner wall of the roof dust hood is fixedly connected with a PLC (programmable logic controller) control panel, a dust filtering mechanism is installed inside the roof dust hood, a conical cylinder welded and connected with the inside of the roof dust hood is arranged inside the dust filtering mechanism, connecting rods are welded and connected with the two sides of the inner wall of the conical, and first bearing top rotates and is connected with the L template, connecting plate bottom gomphosis is connected with the motor, and the motor passes connecting plate and first bearing fixed connection, L template surface welded connection has the flabellum, and L template top welded connection has a plurality of reset spring, reset spring top fixedly connected with cleaning brush, and cleaning brush top swing joint has many meshes filter screen to many meshes filter screen and roof suction hood inner wall welded connection, closing mechanism is installed to roof suction hood one side, install sealing mechanism between connecting pipe and the outer pipe, elevating system is installed to indoor suction hood bottom.
Preferably, the multi-mesh filter screen is parallel to the output end of the conical cylinder, and the L-shaped plate and the motor form a transmission structure through the first bearing.
Preferably, the inside logical groove of seting up including roof suction hood one side of closing mechanism, and lead to the laminating of groove surface and be connected with sealed offset plate to sealed offset plate passes through hinge and roof suction hood one side fixed connection, roof suction hood fixed surface installs the second bearing, and second bearing surface rotates and is connected with the layer board, the inside threaded connection of layer board has the hand to twist the bolt, and the hand is twisted bolt bottom fixedly connected with clamp plate.
Preferably, the pressing plate is movably connected with the sealing rubber plate, and the supporting plate and the roof dust hood form a rotating structure through a second bearing.
Preferably, sealing mechanism is inside including the backup pad with connecting pipe surface welded connection, and the inside gomphosis of backup pad is connected with the stand pipe, the inside threaded connection of stand pipe has the threaded rod, and threaded rod one end fixedly connected with splint, outer pipe surface activity has cup jointed sealed rubber ring, and sealed rubber ring and connecting pipe one side swing joint.
Preferably, the sealing rubber ring is movably sleeved with the clamping plate, and the clamping plate and the guide pipe form a telescopic structure through a threaded rod.
Preferably, the lifting mechanism comprises a spring pipe fixedly connected with the bottom end of the indoor dust hood, the bottom end of the spring pipe is fixedly connected with an annular plate, the two sides of the inner wall of the indoor dust hood are fixedly connected with a bearing plate, and the bottom end of the bearing plate is fixedly connected with an electric telescopic rod.
Preferably, the electric telescopic rod is fixedly connected with the inner wall of the annular plate, and the spring tube forms a telescopic structure with the bearing plate through the annular plate and the electric telescopic rod.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, under the action of a dust filtering mechanism, larger particle impurities in gas can be filtered through a multi-mesh filter screen in the roof dust hood, so that waste gas can be cleaned more quickly in a later-stage filtering device, the cost of later-stage filtering work is reduced, smoke particles are prevented from blocking the inside of the device, a motor can drive a cleaning brush to scrape and rub the surface of the multi-mesh filter screen through an L-shaped plate, the multi-mesh filter screen is cleaned, the condition that the gas cannot pass due to blocking is prevented, the normal ventilation use of the device is ensured, the L-shaped plate simultaneously drives fan blades to rotate, the gas flow speed in the roof dust hood can be accelerated, the air suction efficiency of the device is improved, the dust quantity in the roof dust hood can be monitored through a dust sensor arranged in the roof dust hood, the monitoring value is transmitted to a PLC control panel, and when the transmitted dust value is lower than the preset value of the PLC control panel, the preset program in the PLC control panel controls the motor to stop working, so that when no dust exists in a workshop, the electric appliance stops working, and the electricity utilization cost can be saved.
2. According to the invention, under the action of the closing mechanism, the pressing plate can be driven to stretch and move by rotating the hand to screw the bolt, the sealing rubber plate on the surface of the roof dust hood is extruded or loosened, the through groove of the roof dust hood can be rapidly sealed or exposed, a worker can conveniently overhaul and maintain a workpiece in the roof dust hood through the through groove, and dust accumulated on two sides of the conical cylinder can be conveniently cleaned.
3. According to the invention, under the action of the sealing mechanism, the threaded rod on one side of the clamping plate can stretch and move in the guide pipe by rotating the clamping plate, so that the sealing rubber ring is extruded and can be tightly attached to the joint of the connecting pipe and the external connecting pipe, the connecting gap of the connecting pipe is plugged for sealing, dust leakage is prevented, and the connection tightness of the pipe body is improved.
4. According to the dust suction device, under the action of the lifting mechanism, the electric telescopic rod is connected with the PLC control board through the connecting line, the electric telescopic rod can be controlled to stretch and move through a preset program in the PLC control board, the electric telescopic rod can drive the spring tube to stretch and move, the position of an air inlet of the dust suction cover can be adjusted through the spring tube, the dust suction device can be closer to dust, the dust suction efficiency is improved, and when the dust suction device is not used, the PLC control board controls the electric telescopic rod to reset and move, the spring tube of the dust suction cover moves towards the indoor dust suction cover, the occupied area of the indoor dust suction cover is reduced, and the free movement of a travelling crane in a workshop is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a dust filter according to the present invention;
FIG. 3 is a schematic view of the closure mechanism of the present invention;
FIG. 4 is a schematic structural view of a sealing mechanism according to the present invention;
FIG. 5 is a schematic structural view of a sealing mechanism according to the present invention;
FIG. 6 is a schematic circuit diagram of a PLC control board according to the present invention.
In the figure: 1. a roof body; 2. a roof steel frame; 3. an indoor dust hood; 4. a roof suction hood; 5. a connecting pipe; 6. an external connection pipe; 7. a dust sensor; 8. a PLC control panel; 9. a dust filtering mechanism; 901. a tapered barrel; 902. a connecting rod; 903. a connecting plate; 904. a first bearing; 905. an L-shaped plate; 906. an electric motor; 907. a fan blade; 908. a return spring; 909. a cleaning brush; 9010. a multi-mesh filter screen; 10. a closing mechanism; 1001. a through groove; 1002. sealing the rubber plate; 1003. a second bearing; 1004. a support plate; 1005. screwing the bolt by hand; 1006. pressing a plate; 11. a sealing mechanism; 1101. a support plate; 1102. a guide tube; 1103. a threaded rod; 1104. a splint; 1105. sealing the rubber ring; 12. a lifting mechanism; 1201. a spring tube; 1202. an annular plate; 1203. a carrier plate; 1204. an electric telescopic rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-6, the invention provides a fixed roof closed dust hood for a converter tertiary dust removal system, comprising a roof body 1, a roof steel frame 2 welded to the bottom of the roof body 1, an indoor dust hood 3 fixedly connected to the surface of the roof steel frame 2, a roof dust hood 4 fixedly connected to the top of the roof steel frame 2, a connecting pipe 5 connected to one side of the top of the roof dust hood 4 in an embedded manner, an external connecting pipe 6 sleeved inside the connecting pipe 5, a dust sensor 7 fixedly connected to the bottom of the inner wall of the roof dust hood 4, a PLC control board 8 fixedly connected to one side of the inner wall of the roof dust hood 4, a dust filter mechanism 9 installed inside the roof dust hood 4, a conical cylinder 901 welded to the inside of the roof dust hood 4 inside the dust filter mechanism 9, connecting rods 902 welded to both sides of the inner wall of the conical cylinder 901, and a connecting plate 903 welded between the two connecting rods 902, connecting plate 903 top fixed mounting has first bearing 904, and first bearing 904 top is rotated and is connected with L template 905, the gomphosis of connecting plate 903 bottom is connected with motor 906, and motor 906 passes connecting plate 903 and first bearing 904 fixed connection, L template 905 surface welded connection has flabellum 907, and L template 905 top welded connection has a plurality of reset spring 908, reset spring 908 top fixedly connected with cleaning brush 909, and cleaning brush 909 top swing joint has many meshes filter screen 9010, and many meshes filter screen 9010 and 4 inner wall welded connection of roof suction hood, closing mechanism 10 is installed to 4 one side of roof suction hood, install sealing mechanism 11 between connecting pipe 5 and the outer pipe 6, elevating system 12 is installed to 3 bottom ends of indoor suction hood.
In this embodiment, the dust sensor 7 is a microcomputer laser dust meter with a built-in filter membrane on-line sampler, which can collect particles while continuously monitoring the dust concentration, so as to analyze the components of the dust and obtain the mass concentration conversion coefficient K value, can directly read the dust mass concentration (mg/m), and has the advantages of PM10, PM5, PM2.5, PM1.0 and TSP cutters for selection, and the dust sensor adopts a powerful air pump to monitor the inhalable dust PM2.5, can transmit the detected dust value to the PLC control board 8 by connecting with the PLC control board 8 through a connecting wire, wherein the PLC control board 8 is a circuit board which has a wider application range than that of the circuit board, but is more intelligent and automatic than the common circuit board, and can play a control role, and can be called as a control board, has a built-in control program, and is connected in series with an external power supply of the motor 906, the operation and the stop of the motor 906 can be controlled, the motor 906 can drive the cleaning brush 909 to rotate and scratch on the surface of the multi-mesh filter screen 9010, and the inner wall of the indoor dust hood 3 is fixedly provided with the accelerating plate, so that the input end of the indoor dust hood 3 is in a horn shape, and the accelerating of hot air flow in the rising process can be ensured.
Further, the multi-mesh filter screen 9010 is parallel to the output end of the conical barrel 901, and the L-shaped plate 905 and the motor 906 form a transmission structure through the first bearing 904.
In this embodiment, the multi-mesh filter screen 9010 can filter large particle impurities in the gas to allow the gas to pass through, the impurity particles are accumulated on the surface of the multi-mesh filter screen 9010, and when the cleaning brush 909 scrapes the multi-mesh filter screen 9010, dust on the surface of the cleaning brush is made to fall into the connection between the conical cylinder 901 and the roof dust hood 4.
Further, closed mechanism 10 is inside including logical groove 1001 that roof suction hood 4 one side was seted up, and leads to groove 1001 surface laminating and be connected with sealed offset plate 1002, and sealed offset plate 1002 passes through hinge and roof suction hood 4 one side fixed connection, and roof suction hood 4 fixed surface installs second bearing 1003, and second bearing 1003 rotates on the surface and is connected with layer board 1004, and layer board 1004 internal thread is connected with hand-screwed bolt 1005, and hand-screwed bolt 1005 bottom fixedly connected with clamp plate 1006.
In this embodiment, logical groove 1001 has seted up certain size, makes its staff can get into in roof suction hood 4, overhauls the maintenance to its inside work piece to can clear up the dust of its a cone 901 surface collection, sealed offset plate 1002 can overturn through the hinge, exposes or plugs up logical groove 1001.
Further, the pressing plate 1006 is movably connected with the sealing rubber plate 1002, and the supporting plate 1004 and the roof dust hood 4 form a rotating structure through the second bearing 1003.
In this embodiment, rotating hand and twisting bolt 1005, can driving clamp plate 1006 lift and move, extrude or loosen sealed offset plate 1002, can make its sealed offset plate 1002 closely laminate with leading to groove 1001, make it sealed, prevent losing air.
Further, inside backup pad 1101 who is connected with connecting pipe 5 surface welding that is included of sealing mechanism 11, and the inside gomphosis of backup pad 1101 is connected with stand pipe 1102, and the inside threaded connection of stand pipe 1102 has threaded rod 1103, and threaded rod 1103 one end fixedly connected with splint 1104, and the surface activity of external pipe 6 has cup jointed sealed rubber ring 1105, and sealed rubber ring 1105 and connecting pipe 5 one side swing joint.
In this embodiment, the external connection pipe 6 is connected to an external wearable device, the collected exhaust gas can be introduced into the air filtration device, the inner diameter of the sealing rubber ring 1105 is the same as the surface diameter of the external connection pipe 6, the sealing rubber ring 1105 can be pulled on the surface of the external connection pipe 6, and the joint between the external connection pipe 6 and the connection pipe 5 can be blocked by the sealing rubber ring 1105.
Further, the sealing rubber ring 1105 is movably sleeved with the clamping plate 1104, and the clamping plate 1104 and the guide tube 1102 form a telescopic structure through the threaded rod 1103.
In this embodiment, by rotating the clamp plate 1104, the sealing rubber ring 1105 can be pressed, so that the joint between the external sealing pipe 6 and the connection pipe 5 can be tightly blocked, and the joint can be prevented from leaking.
Further, the lifting mechanism 12 includes a spring tube 1201 fixedly connected to the bottom end of the indoor dust hood 3, the bottom end of the spring tube 1201 is fixedly connected to the annular plate 1202, the two sides of the inner wall of the indoor dust hood 3 are fixedly connected to the bearing plate 1203, and the bottom end of the bearing plate 1203 is fixedly connected to the electric telescopic rod 1204.
In this embodiment, the electric telescopic rod 1204 can drive the spring tube 1201 to move in a telescopic manner, so as to change the length of the spring tube 1201 and enable the spring tube to be close to dust.
Further, the electric telescopic rod 1204 is fixedly connected with the inner wall of the annular plate 1202, and the spring tube 1201 and the bearing plate 1203 form a telescopic structure through the annular plate 1202 and the electric telescopic rod 1204.
In this embodiment, when the electric telescopic rod 1204 drives the spring tube 1201 to contract, the occupied area of the indoor dust hood 3 and the spring tube 1201 can be changed, and the movement of a travelling crane in a workshop is prevented from being blocked.
The working principle and the using process of the invention are as follows: when the device is used, the external connecting pipe 6 connected with an external wearable device is sleeved in the connecting pipe 5, the sealing rubber ring 1105 is pulled manually to be attached to the joint of the external connecting pipe 6 and the connecting pipe 5, the clamping plate 1104 is rotated manually, the clamping plate 1104 drives the threaded rod 1103 to rotate and move in the guide pipe 1102, the clamping plate 1104 stretches and moves to extrude the sealing rubber ring 1105 to be closely attached to the joint of the external connecting pipe 6 and the connecting pipe 5 to seal the sealing rubber ring 1105, workshop smoke enters the indoor dust hood 3 through the input end of the spring pipe 1201 and enters the roof dust hood 4 through the opening end of the roof body 1, larger particle impurities in the smoke are filtered through the multi-mesh filter screen 9010, gas passes through the impurities, the impurities are accumulated on the surface of the multi-mesh filter screen 9010, the dust sensor 7 in the roof dust hood 4 monitors the dust, and when the dust data transmitted to the PLC control board 8 is higher than the preset value of the PLC control board 8, the PLC control board 8 controls the electric telescopic rod 1204 and the motor 906 to work, the ring-shaped plate 1202 is driven by the electric telescopic rod 1204 to move downwards, the ring-shaped plate 1202 pulls the spring tube 1201 to move downwards to be close to a smoke dust position, the motor 906 drives the L-shaped plate 905 to rotate, the L-shaped plate 905 drives the cleaning brush 909 to scrape and rub the surface of the multi-mesh filter screen 9010 to clean the multi-mesh filter screen 9010, normal ventilation use of the multi-mesh filter screen 9010 is guaranteed, cleaned dust particles fall into a joint of the conical cylinder 901 and the roof dust hood 4, the L-shaped plate 905 rotates and simultaneously drives the fan 907 to rotate, the fan 907 accelerates the gas flow velocity in the roof dust hood 4 to enable the spring tube 1201 at the bottom end to generate suction force, the spring tube 1201 generates suction force on the smoke dust, the hand-screwing bolt 1005 is manually rotated and moves in the supporting plate 1004 to drive the pressing plate 1006 to loosen the sealing rubber plate 1002 on the surface of the roof dust hood 4, and then, the sealing rubber plate 1002 is turned over manually, the sealing rubber plate 1002 is turned over through a hinge to be exposed out of the through groove 1001 of the roof dust hood 4, a worker overhauls and maintains the workpiece in the roof dust hood 4 through the through groove 1001 and cleans dust accumulated on two sides of the conical cylinder 901, and thus the working principle of the invention is completed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a converter cubic dust pelletizing system is with airtight suction hood of fixed roof, including roof body (1), its characterized in that: the roof comprises a roof body (1), a roof steel frame (2) is welded and connected to the bottom end of the roof body (1), an indoor dust hood (3) is fixedly connected to the surface of the roof steel frame (2), a roof dust hood (4) is fixedly connected to the top end of the roof steel frame (2), a connecting pipe (5) is connected to one side of the top end of the roof dust hood (4) in an embedded mode, an outer connecting pipe (6) is installed inside the connecting pipe (5) in a sleeved mode, a dust sensor (7) is fixedly connected to the bottom end of the inner wall of the roof dust hood (4), a PLC control panel (8) is fixedly connected to one side of the inner wall of the roof dust hood (4), a dust filtering mechanism (9) is installed inside the roof dust hood (4), a conical barrel (901) is welded and connected to the inside of the roof dust hood (4) inside the dust filtering mechanism (9), and connecting rods (902) are welded and connected to two sides of the inner wall of the conical barrel (901), a connecting plate (903) is welded and connected between the two connecting rods (902), a first bearing (904) is fixedly installed at the top end of the connecting plate (903), an L-shaped plate (905) is rotatably connected at the top end of the first bearing (904), a motor (906) is connected at the bottom end of the connecting plate (903) in an embedded mode, the motor (906) penetrates through the connecting plate (903) and is fixedly connected with the first bearing (904), fan blades (907) are welded and connected to the surface of the L-shaped plate (905), a plurality of return springs (908) are welded and connected to the top end of the L-shaped plate (905), a cleaning brush (909) is fixedly connected to the top end of the return spring (908), a multi-mesh filter screen (9010) is movably connected to the top end of the cleaning brush (909), the multi-mesh filter screen (9010) is welded and connected to the inner wall of the roof dust hood (4), and a closing mechanism (10) is installed on one side of the roof dust hood (4), a sealing mechanism (11) is installed between the connecting pipe (5) and the external connecting pipe (6), and a lifting mechanism (12) is installed at the bottom end of the indoor dust hood (3).
2. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 1, wherein: the multi-mesh filter screen (9010) is parallel to the output end of the conical barrel (901), and the L-shaped plate (905) and the motor (906) form a transmission structure through the first bearing (904).
3. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 1, wherein: the inside logical groove (1001) of seting up including roof suction hood (4) one side of closing mechanism (10), and lead to groove (1001) surface laminating and be connected with sealed offset plate (1002) to sealed offset plate (1002) pass through hinge and roof suction hood (4) one side fixed connection, roof suction hood (4) fixed surface installs second bearing (1003), and second bearing (1003) surface rotation is connected with layer board (1004), layer board (1004) internal thread is connected with hand and twists bolt (1005), and hand and twists bolt (1005) bottom fixedly connected with clamp plate (1006).
4. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 3, wherein: the pressing plate (1006) is movably connected with the sealing rubber plate (1002), and the supporting plate (1004) and the roof dust hood (4) form a rotating structure through a second bearing (1003).
5. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 1, wherein: sealing mechanism (11) is inside including backup pad (1101) with connecting pipe (5) surface welded connection, and backup pad (1101) inside gomphosis is connected with stand pipe (1102), the inside threaded connection of stand pipe (1102) has threaded rod (1103), and threaded rod (1103) one end fixedly connected with splint (1104), outer pipe (6) surface activity has cup jointed sealed rubber ring (1105), and sealed rubber ring (1105) and connecting pipe (5) one side swing joint.
6. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 5, wherein: the sealing rubber ring (1105) is movably sleeved with the clamping plate (1104), and the clamping plate (1104) and the guide pipe (1102) form a telescopic structure through the threaded rod (1103).
7. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 1, wherein: the indoor dust hood is characterized in that the lifting mechanism (12) is internally provided with a spring tube (1201) fixedly connected with the bottom end of the indoor dust hood (3), the bottom end of the spring tube (1201) is fixedly connected with a ring plate (1202), two sides of the inner wall of the indoor dust hood (3) are fixedly connected with a bearing plate (1203), and the bottom end of the bearing plate (1203) is fixedly connected with an electric telescopic rod (1204).
8. The fixed roof-sealing dust hood for the converter tertiary dust removal system of claim 7, wherein: the electric telescopic rod (1204) is fixedly connected with the inner wall of the annular plate (1202), and the spring tube (1201) and the bearing plate (1203) form a telescopic structure through the annular plate (1202), the electric telescopic rod (1204).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416335.1A CN113151634B (en) | 2021-04-19 | 2021-04-19 | Fixed roof closed dust hood for converter tertiary dust removal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416335.1A CN113151634B (en) | 2021-04-19 | 2021-04-19 | Fixed roof closed dust hood for converter tertiary dust removal system |
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| CN113151634A true CN113151634A (en) | 2021-07-23 |
| CN113151634B CN113151634B (en) | 2021-12-10 |
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| CN114082928A (en) * | 2021-11-20 | 2022-02-25 | 江西铭德电器有限公司 | Useless red copper purification device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082928A (en) * | 2021-11-20 | 2022-02-25 | 江西铭德电器有限公司 | Useless red copper purification device |
| CN117299728A (en) * | 2023-11-29 | 2023-12-29 | 枣庄华润纸业有限公司 | Dustproof cleaning device of pulper |
| CN117299728B (en) * | 2023-11-29 | 2024-03-08 | 枣庄华润纸业有限公司 | Dustproof cleaning device of pulper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113151634B (en) | 2021-12-10 |
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