Anti-corrosion sealing structure of rectifier cabinet of direct-current submerged arc furnace

Abstract

The utility model relates to the technical field of direct current submerged arc furnace rectifier cabinets, in particular to a direct current submerged arc furnace rectifier cabinet anti-corrosion sealing structure which is installed in a cabinet body for rectifying a direct current submerged arc furnace, and a rectifying component for rectifying the direct current submerged arc furnace is installed at the rear end of the inner wall of the cabinet body. An anti-corrosion sealing part is arranged in the cabinet body, the sealing part comprises a joint sealing element and a wire inlet sealing plate, the joint sealing element is arranged at a joint in the cabinet body, and the wire inlet sealing plate is arranged on the inner wall of the cabinet body and at a wire harness mounting position. Sealing processing can be performed on the joint position of the cabinet body through the arranged joint sealing member, and sealing processing can be performed on the position of the wire harness entering and exiting the cabinet body through the arranged wire inlet sealing plate and the wire passing block, so that damage to rectification components caused by external corrosive media entering the cabinet body can be reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of DC submerged arc furnace rectifier cabinets, specifically to the corrosion-resistant sealing structure of DC submerged arc furnace rectifier cabinets. Background Technology

[0002] DC submerged arc furnace rectifier cabinets are used in metal smelting and electrolysis processes to convert AC power into DC power to meet the current requirements of metallurgy, chemical and other processes. They are also responsible for efficiently distributing the rectified DC power to different electrical equipment, such as the furnace body, heating elements and cooling systems.

[0003] The rectifier cabinet typically contains electronic components, circuits, and electrical equipment. These components are highly sensitive to corrosive media (such as gases, liquids, and solid particles). However, most existing DC submerged arc furnace rectifier cabinets are directly welded from sheet metal, resulting in gaps at the joints. This can damage the electronic components, circuits, and electrical equipment. Furthermore, the inner wall of the rectifier cabinet needs to have slots for the wire harnesses to pass through. These slots can allow corrosive media to enter the DC submerged arc furnace rectifier cabinet along the wire harnesses, causing even greater damage to the electronic components, circuits, and electrical equipment. Therefore, the rectifier cabinet has certain shortcomings.

[0004] In conclusion, it is very necessary to invent a corrosion-resistant sealing structure for the rectifier cabinet of a DC submerged arc furnace. Utility Model Content

[0005] To address this issue, this utility model provides a corrosion-resistant sealing structure for the rectifier cabinet of a DC submerged arc furnace, which solves the problem that existing DC submerged arc furnace rectifier cabinets are mostly made by directly welding iron sheets, resulting in gaps in the joints, which can damage electronic components, circuits, and electrical equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant sealing structure for a DC submerged arc furnace rectifier cabinet, which is installed in a cabinet for rectifying the DC submerged arc furnace. The rear end of the inner wall of the cabinet is equipped with rectifier components for rectifying the DC submerged arc furnace, and the interior of the cabinet is provided with corrosion-resistant sealing components.

[0007] The sealing component includes a joint seal and an inlet sealing plate. The joint seal is installed at the joint inside the cabinet, and the inlet sealing plate is installed on the inner wall of the cabinet at the position where the wire harness is installed.

[0008] Preferably, the joint sealant includes a silicone layer, which is fixed to the inner wall side of the cabinet, and a foam layer is fixed to the inner wall side of the silicone layer away from the cabinet.

[0009] Preferably, the thickness of the foam layer is greater than the thickness of the silicone layer, and a rubber layer is fixed to the outer wall of the foam layer on the side away from the silicone layer.

[0010] Preferably, the outer wall of the cabinet is provided with ventilation slots for ventilation and heat dissipation of the rectifier components, and the inner wall of the ventilation slots is provided with stainless steel filters.

[0011] Preferably, a fine filter layer is installed on the inner wall of the ventilation slot on the side of the stainless steel filter screen closest to the inside of the cabinet, and a sliding sealing plate is provided on the inner wall of the ventilation slot on the side of the stainless steel filter screen away from the fine filter layer.

[0012] Preferably, the inner wall of the cabinet and above the sliding sealing plate are provided with storage slots for storing the storage slots, and the upper end of the sliding sealing plate is slidably connected to the inner wall of the storage slot.

[0013] Preferably, the outer rear end of the inlet sealing plate is provided with a sealing socket for mounting and fixing to the groove in the inner wall of the cabinet. The outer walls of the inlet sealing plate and the sealing socket are provided with clearance through holes for the wire harness to pass through. The inner wall of the clearance through holes is provided with a wire guide block.

[0014] Preferably, the inner wall of each wire guide block is provided with a through hole for the wire harness to pass through, and the outer wall of each wire guide block and the end near the wire inlet sealing plate is fixed with a fixing pin.

[0015] Preferably, the plurality of fixing pins are evenly arranged in a ring array, and the outer wall of the inlet sealing plate is provided with fixing slots at positions corresponding to the fixing pins. The fixing pins are engaged with the inner wall of the fixing slots, and the outer wall of the through block is covered with a sealing film for sealing.

[0016] The beneficial effects of this utility model are:

[0017] In this invention, the joint sealing element can seal the joints of the cabinet, and the inlet sealing plate and the through block can seal the entry and exit points of the wire harness. This reduces the risk of external corrosive media entering the cabinet and damaging the rectifier components, making it more convenient for users to operate. Attached Figure Description

[0018] Figure 1 This is a partial cross-sectional view of the present invention from the front view.

[0019] Figure 2 A partial structural diagram of the cabinet body for installing the inlet sealing plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the material structure of the joint seal in this utility model;

[0021] Figure 4This is a partial structural schematic diagram of the incoming line sealing plate in this utility model from a side view.

[0022] Figure 5 This is a three-dimensional structural diagram of the through-line block of this utility model.

[0023] In the diagram: 100, cabinet; 110, rectifier components; 200, joint sealant; 210, silicone layer; 220, foam layer; 230, rubber layer; 300, fine filter layer; 310, stainless steel filter screen; 320, sliding sealing plate; 321, storage slot; 400, inlet sealing plate; 401, sealed socket; 410, cable guide block; 411, fixing pin; 420, sealing membrane. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] See attached document Figures 1-5 The present invention provides a corrosion-resistant sealing structure for a DC submerged arc furnace rectifier cabinet. This structure is installed inside a cabinet 100 that rectifies the DC submerged arc furnace. A rectifier component 110 for rectifying the DC submerged arc furnace is installed at the rear end of the inner wall of the cabinet 100. The cabinet 100 contains corrosion-resistant sealing components, including a joint seal 200 and an inlet sealing plate 400. The joint seal 200 is installed at the joint inside the cabinet 100 and can be fixedly adhered to the joint inside the cabinet 100, thereby sealing the joint inside the cabinet 100. The joint seal 200 includes a silicone layer 210, which is fixed to the inner wall side of the cabinet 100. The silicone layer 210 is suitable for high-temperature and humid environments and can effectively prevent corrosion. To prevent moisture and dust from penetrating the silicone layer 210, a foam layer 220 is fixed to the inner wall of the cabinet 100 away from the silicone layer 210. The thickness of the foam layer 220 is greater than that of the silicone layer 210. A rubber layer 230 is fixed to the outer wall of the foam layer 220 away from the silicone layer 210. The silicone layer 210 can be fixed to the inner wall of the joint end of the cabinet 100 with sealant. The silicone layer 210, foam layer 220 and rubber layer 230 can also be fixed together by adhesive or other means. The rubber layer 230 is set on the outside and can be made of fluororubber or EPDM rubber. It can protect the outside of the foam layer 220. The rubber layer 230 can be set to wrap the side walls of the silicone layer 210 and the foam layer 220.

[0026] Ventilation slots are provided on the outer side of the cabinet 100 to allow ventilation and heat dissipation for the rectifier components 110. Stainless steel filters 310 are installed on the inner side of each ventilation slot. A fine filter layer 300 is installed on the inner wall of the ventilation slot, on the side of the stainless steel filters 310 closest to the interior of the cabinet 100. The stainless steel filters 310 are used to reduce dust entering the cabinet 100. The fine filter layer 300 can be made of glass fiber filter paper or activated carbon fiber. A sliding sealing plate 320 is provided on the inner wall of the ventilation slot, on the side of the stainless steel filters 310 furthest from the fine filter layer 300. A storage slot 321 is provided on the inner wall of the cabinet 100 above the sliding sealing plate 321 to accommodate the storage slot 321. The upper end of the sliding sealing plate 320 is connected to the storage slot. The inner wall of 321 is slidably connected. The bottom of the outer side of the sliding sealing plate 320 and the outer side of the cabinet 100, located above the ventilation slot, are both fixed with magnetic plates. When the sliding sealing plate 320 is put into the storage slot 321, the two magnetic plates can be magnetically attracted and fixed, preventing the sliding sealing plate 320 from moving downwards and sealing the ventilation slot during ventilation. The sliding sealing plate 320 is set to seal the ventilation slot when the DC electric arc furnace rectifier cabinet is not in use, reducing the entry of corrosive media into the cabinet 100. The fine filter layer 300 and the stainless steel filter screen 310 are both fixed in a detachable manner, such as by bolts, so that it is convenient for personnel to clean and replace the fine filter layer 300 and the stainless steel filter screen 310.

[0027] The inlet sealing plate 400 is installed on the inner wall of the cabinet 100 at the location where the wire harness is installed. The rear end of the outer wall of the inlet sealing plate 400 has a sealing socket 401 for mounting and fixing to the inner wall of the cabinet 100. The inlet sealing plate 400 can be fixed to the inner wall of the cabinet 100 through the sealing socket 401, allowing the wire harness to pass through. The outer wall of the sealing socket 401 can be sealed with sealant. Both the inlet sealing plate 400 and the sealing socket 401 have clearance holes for the wire harness to pass through. A wire guide block 410 is installed on the inner wall of each clearance hole. Each wire guide block 410 has a through hole for the wire harness to pass through. A fixing pin 411 is fixed to the outer wall of each wire guide block 410 near the end of the inlet sealing plate 400. Multiple fixing pins 411 are evenly arranged in a ring array. The wire guide blocks 410 are for allowing the transmission wire harness to pass through. When the bypass through-holes are opened in the inlet sealing plate 400 and the sealing socket 401, the empty parts are sealed. The wire block 410 can be selected according to the thickness of the wire harness. The wire block 410 and the wire harness also need to be sealed and fixed with sealant. The outer wall of the inlet sealing plate 400 has a fixing groove at the position corresponding to the fixing pin 411. The fixing pin 411 is engaged with the inner wall of the fixing groove. The outer wall of the wire block 410 is covered with a sealing film 420 for sealing. The fixing pin 411 and the fixing groove are provided to facilitate the wire block 410 to be fastened and fixed on the outer side of the inlet sealing plate 400, so that the wire block 410 can be fixed on the inlet sealing plate 400. The sealing film 420 is used to enhance the sealing effect between the wire block 410 and the bypass through-holes opened in the inlet sealing plate 400. The sealing film 420 can be made of PTFE membrane.

[0028] The usage process of this utility model is as follows: Those skilled in the art can assemble the device according to the above description, then connect all the electrical equipment to external power supply, and connect the controller to facilitate personnel to operate it. Then, the personnel can first take out the inlet sealing plate 400 and fix the sealing socket 401 to the through groove opened in the inner wall of the cabinet 100. Then, the personnel can first pass the wire harness for connection through the clearance through hole and the wire block 410 opened on the inlet sealing plate 400, and then connect it to the rectifier component 110. After fixing, the personnel can wrap a layer of sealing film 420 on the outer wall of the wire block 410. Then, sealant can be applied to the connection end of the wire harness and the wire block 410. Then, the wire block 410 is inserted into the clearance through hole on the inlet sealing plate 400 so that the sealing film 420 is fixed to the fixing slot. Then, sealant can be applied.

[0029] Then, the personnel can also make the joint seal 200, and first stick a layer of double-sided tape on the inside of the joint seal 200, and then fix the joint seal 200 to the joint of the cabinet 100. Afterwards, the personnel can apply sealant to the side of the joint seal 200 for secondary fixation. In this way, the joint seal 200 is used to seal the joint.

[0030] Meanwhile, when the device is running, personnel can open the sliding sealing plate 320 upwards, so that the fine filter layer 300 and the stainless steel filter screen 310 can filter the air used for heat dissipation.

[0031] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A corrosion-resistant and sealed structure for a DC submerged arc furnace rectifier cabinet, which is installed inside a cabinet (100) for rectifying the DC submerged arc furnace, wherein rectifier components (110) for rectifying the DC submerged arc furnace are installed at the rear end of the inner wall of the cabinet (100), characterized in that: The cabinet (100) is equipped with corrosion-resistant sealing components inside; The sealing components include a joint seal (200) and an inlet sealing plate (400). The joint seal (200) is installed at the joint inside the cabinet (100), and the inlet sealing plate (400) is installed on the inner wall of the cabinet (100) at the position where the wire harness is installed.

2. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 1, characterized in that: The joint seal (200) includes a silicone layer (210), which is fixed to the inner wall side of the cabinet (100), and a foam layer (220) is fixed to the inner wall side of the silicone layer (210) away from the cabinet (100).

3. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 2, characterized in that: The thickness of the foam layer (220) is greater than that of the silicone layer (210), and a rubber layer (230) is fixed to the outer wall of the foam layer (220) away from the silicone layer (210).

4. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 1, characterized in that: The outer wall of the cabinet (100) is provided with ventilation slots for ventilation and heat dissipation of the rectifier components (110) during operation, and the inner wall of the ventilation slots is provided with stainless steel filters (310).

5. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 4, characterized in that: A fine filter layer (300) is installed on the inner wall of the ventilation slot and on the side of the stainless steel filter screen (310) close to the inside of the cabinet (100). A sliding sealing plate (320) is provided on the inner wall of the ventilation slot and on the side of the stainless steel filter screen (310) away from the fine filter layer (300).

6. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 5, characterized in that: The inner wall of the cabinet (100) and above the sliding sealing plate (320) are provided with storage slots (321) for storing the storage slots (321), and the upper end of the sliding sealing plate (320) is slidably connected to the inner wall of the storage slots (321).

7. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 1, characterized in that: The outer rear end of the inlet sealing plate (400) is provided with a sealing socket (401) for mounting and fixing the groove of the inner wall of the cabinet (100). The outer walls of the inlet sealing plate (400) and the sealing socket (401) are provided with clearance through holes for the wire harness to pass through. The inner wall of the clearance through holes is provided with a wire block (410).

8. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 7, characterized in that: The inner wall of each wire guide block (410) is provided with a through hole for the wire harness to pass through, and the outer wall of each wire guide block (410) and the end near the wire inlet sealing plate (400) is fixed with a fixing pin (411).

9. The corrosion-resistant sealing structure of the DC submerged arc furnace rectifier cabinet according to claim 8, characterized in that: The multiple fixed pins (411) are evenly arranged in a ring array. The outer wall of the inlet sealing plate (400) is provided with a fixed slot at the position corresponding to the fixed pin (411). The fixed pins (411) are engaged with the inner wall of the fixed slot. The outer wall of the through block (410) is covered with a sealing film (420) for sealing.

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