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CN-224215773-U - High-voltage transformer silicon micropowder raw material conveying and drying device

CN224215773UCN 224215773 UCN224215773 UCN 224215773UCN-224215773-U

Abstract

The utility model relates to a high-voltage transformer silicon micropowder raw material conveying and drying device, which comprises a drying mechanism and a conveying mechanism, wherein the head end of the drying mechanism is provided with a feed inlet, the conveying mechanism is arranged at the tail end of the drying mechanism, the drying mechanism comprises a tank body, stirring paddles and heating pipes, the tank body is of a double-layer structure and comprises an inner container and a shell, the heating pipes are arranged between the inner container and the shell, the stirring paddles are screw stirring paddles and are provided with a plurality of hollow stirring paddles, heating medium is introduced into the stirring paddles, two outlets are arranged on a feed opening of the conveying mechanism, the tail ends of the outlets are connected with a premixing tank, and the tank body and the premixing tank are connected with negative pressure devices. According to the drying mechanism disclosed by the utility model, the heating pipe and the stirring paddle with a heating function are adopted for synchronous heating, the stirring paddle is heated and stretches into the silicon micro powder, the heating is uniform, the moisture regaining is prevented, two outlets of the conveying mechanism are arranged, the silicon micro powder, the epoxy resin and the curing agent are respectively premixed, the mixing time is prolonged, the free gas is ensured to be fully discharged, and the occurrence of bubbles in casting is avoided.

Inventors

  • LI LINLIN
  • ZHAO ZHENG

Assignees

  • 郑州市凯贝特互感器有限公司

Dates

Publication Date
20260508
Application Date
20250523

Claims (9)

  1. 1. The utility model provides a high-voltage transformer silica powder raw materials carries drying device, includes stoving mechanism (1) and conveying mechanism (2), stoving mechanism (1) head end is equipped with feed inlet (10), conveying mechanism (2) set up at stoving mechanism (1) tail end, wherein stoving mechanism (1) are including jar body (3), stirring rake (4), heating pipe (5), jar body (3) are bilayer structure, and it includes inner bag (6) and shell (7), and heating pipe (5) set up between inner bag (6) and shell (7), stirring rake (4) are the screw, and are equipped with a plurality of, stirring rake (4) bottom contact inner bag (6) inner wall, stirring rake (4) rotation direction is the same, stirring rake (4) inside cavity, inside lets in heating medium, be equipped with two export (8) on the feed opening of conveying mechanism (2), be connected with negative pressure device on jar body (3).
  2. 2. The high-voltage transformer silicon micropowder raw material conveying and drying device according to claim 1 is characterized in that the tail ends of the outlets (8) are connected with premixing tanks (9).
  3. 3. The high-voltage transformer silicon micropowder raw material conveying and drying device according to claim 2 is characterized in that rotary joints (11) are arranged at two ends of the stirring paddle (4), and medium pipelines (12) are connected to the other end of the rotary joints (11) and two ends of the heating pipe (5).
  4. 4. The device for conveying and drying the silicon micropowder raw materials of the high-voltage transformer according to claim 1, wherein the inlets of the heating pipe (5) and the stirring paddle (4) are arranged at one end close to the conveying mechanism (2), and the outlet is arranged at one end close to the feed inlet (10).
  5. 5. The high-voltage transformer silicon micropowder raw material conveying and drying device according to claim 1, wherein a gear motor (13) is arranged on the outer side of the tank body (3), a gear transmission group (14) is arranged at the end part of each stirring paddle (4), the stirring paddles (4) are connected through the gear transmission group (14), and the gear motor (13) is connected with the gear transmission group (14).
  6. 6. The device for conveying and drying the silicon micropowder raw materials of the high-voltage transformer according to claim 5 is characterized in that the heating pipe (5) is of a spiral structure and is sleeved outside the inner container (6).
  7. 7. The high-voltage transformer silicon micropowder raw material conveying and drying device according to claim 1 is characterized in that heat insulation cotton (15) is arranged between the heating pipe (5) and the shell (7).
  8. 8. The device for conveying and drying the silicon micropowder raw materials of the high-voltage transformer according to claim 7, wherein the conveying mechanism (2) is a screw conveyor, and an adjusting valve (16) is arranged in a feed opening of the screw conveyor.
  9. 9. The device for conveying and drying the silicon micropowder raw materials of the high-voltage transformer according to claim 8, wherein the regulating valve (16) comprises a driving motor (17) and a valve piece (18), the valve piece (18) is rotatably arranged in a feed opening of the conveying mechanism (2), the driving motor (17) is fixed on the outer side of the feed opening of the conveying mechanism (2), and an output shaft of the driving motor is fixedly connected with the valve piece (18).

Description

High-voltage transformer silicon micropowder raw material conveying and drying device Technical Field The utility model relates to the technical field of transformer production, in particular to a high-voltage transformer silicon micropowder raw material conveying and drying device. Background The silicon micropowder is a raw material for producing the high-voltage transformer, and in order to avoid the reduction of the insulating property caused by moisture residue in the silicon micropowder in the process of producing the high-voltage transformer, the silicon micropowder is usually required to be dried in advance, then mixed with epoxy resin and a curing agent, and finally poured. In the prior art, the baking oven is generally used for baking the silicon micro powder, but the baking device has the defects of uneven heating, moisture regaining and the like of the silicon micro powder, epoxy resin, a curing agent and the silicon micro powder are generally added into the stirring device for mixing and stirring after the silicon micro powder is baked in the prior art, but free gas exists in the internal pores of the silicon micro powder, the stirring and mixing time is short, the free gas is not discharged cleanly, and bubbles are easy to generate in the casting process. Disclosure of utility model The utility model aims to overcome the technical defects that the silicon micropowder is heated unevenly and is easy to get damp when being dried, and free gas in the silicon micropowder cannot be discharged cleanly to influence pouring in the prior art, and provides a high-voltage transformer silicon micropowder raw material conveying and drying device. The high-voltage transformer silicon micropowder raw material conveying and drying device comprises a drying mechanism and a conveying mechanism, wherein the head end of the drying mechanism is provided with a feed inlet, the conveying mechanism is arranged at the tail end of the drying mechanism, the drying mechanism comprises a tank body, stirring paddles and a heating pipe, the tank body is of a double-layer structure and comprises an inner container and a shell, the heating pipe is arranged between the inner container and the shell, the stirring paddles are screw stirring paddles and are provided with a plurality of stirring paddles, the bottoms of the stirring paddles are in contact with the inner wall of the inner container, the stirring paddles are identical in rotation direction, the stirring paddles are hollow, heating mediums are introduced into the stirring paddles, two outlets are arranged on a discharging opening of the conveying mechanism, and a negative pressure device is connected to the tank body. Further, the outlet ends are connected with a premixing tank. Further, both ends of the stirring paddle are provided with rotary joints, and both ends of the heating pipe and the other end of the rotary joints are connected with medium pipelines. Further, the inlets of the heating pipe and the stirring paddle are arranged at one end close to the conveying mechanism, and the outlet is arranged at one end close to the feeding hole. Further, a gear motor is arranged on the outer side of the tank body, a gear transmission group is arranged at the end part of each stirring paddle, the stirring paddles are connected through the gear transmission group, and the gear motor is connected with the gear transmission group. Further, the heating pipe is of a spiral structure and is sleeved outside the inner container. Further, heat insulation cotton is arranged between the heating pipe and the shell. Further, the conveying mechanism is a screw conveyor, and an adjusting valve is arranged in a feed opening of the screw conveyor. Further, the regulating valve comprises a driving motor and a valve sheet, the valve sheet is rotatably arranged in the feed opening of the conveying mechanism, the driving motor is fixed on the outer side of the feed opening of the conveying mechanism, and an output shaft of the driving motor is fixedly connected with the valve sheet. The drying mechanism has the beneficial effects that the heating pipe and the stirring paddle with the heating function are adopted for synchronous heating, the stirring paddle is heated and stretches into the silicon micro powder, so that the heating is uniform, the heating pipe is heated to enable the temperature in the whole tank body to rise, a high-temperature environment is provided for preventing moisture regain, two outlets of the conveying mechanism are connected with the two premixing tanks, the silicon micro powder, the epoxy resin and the curing agent are respectively premixed, and finally the silicon micro powder, the epoxy resin and the curing agent are mixed together, the mixing time is prolonged, free gas in the silicon micro powder is fully discharged, and air bubbles in casting are avoided. Drawings FIG. 1 is a schematic diagram of a high-voltage transformer silicon micropowder raw material conve