A circulating sand soot blowing device

Abstract

The invention discloses a circulating sand dust blowing device, and belongs to the technical field of boiler dust removing equipment. The circulating sand dust blowing device comprises a sand hopper and an electric hoist connected to a boiler top. The circulating sand dust blowing device is characterized in that a sand blower connected to the top of a tail vertical well and a fluidized bed connected to the bottom of the tail vertical well are further included; the sand blower comprises a speed regulation motor, a belt wheel, a transmission belt, a sand blowing pipe and a bearing connected to the sand blowing pipe; the sand hopper is connected with the sand blowing pipe through a sand inlet pipe; a motor shaft of the speed regulation motor is in transmission connection with the belt wheel; the belt wheel is in transmission connection with the bearing through the transmission belt; the sand blowing pipe communicates with the tail vertical well; a packaging auger driven through a motor is connected to the fluidized bed; and a sand discharge trolley is connected to the electric hoist. According to the circulating sand dust blowing device, dust on a heat exchange component in the tail vertical well can be effectively removed, heat exchange efficiency is improved, and the circulating sand dust blowing device has the beneficial effects of being low in energy consumption, good in dust blowing effect and high in use safety.

Description

Technical field

[0001] The invention relates to the technical field of boiler ash removal equipment, in particular to a circulating sand soot blowing device. Background technique

[0002] The circulating fluidized bed boiler adopts a single drum, natural circulation method, and is generally divided into two vertical shafts at the front and rear. The front shaft is a total hanging structure, surrounded by membrane water walls. From bottom to top, it is the primary air chamber, dense phase area, and dilute phase area. The tail shaft adopts a supporting structure, and the two shafts are connected by a vertical cyclone separator, and the lower part of the separator is connected with a return device and an ash cooler. Both the combustion chamber and the separator are equipped with anti-wear linings, the front shaft uses a tube furnace wall, the external metal guard plate, and the tail shaft uses a light furnace wall. Eight steel columns bear the full weight of the boiler.

[0003] Ci...

Examples

Embodiment 1

[0064] See figure 1 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0065] This embodiment is the most basic implemen...

Embodiment 2

[0067] See figure 2 with image 3 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0068] An induced draft fan 13 is ...

Embodiment 3

[0076] See Figure 3-Figure 5 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0077] An induced draft fan 13 is conne...

Technical field

[0001] The invention relates to the technical field of boiler ash removal equipment, in particular to a circulating sand soot blowing device. Background technique

[0002] The circulating fluidized bed boiler adopts a single drum, natural circulation method, and is generally divided into two vertical shafts at the front and rear. The front shaft is a total hanging structure, surrounded by membrane water walls. From bottom to top, it is the primary air chamber, dense phase area, and dilute phase area. The tail shaft adopts a supporting structure, and the two shafts are connected by a vertical cyclone separator, and the lower part of the separator is connected with a return device and an ash cooler. Both the combustion chamber and the separator are equipped with anti-wear linings, the front shaft uses a tube furnace wall, the external metal guard plate, and the tail shaft uses a light furnace wall. Eight steel columns bear the full weight of the boiler.

[0003] Ci...

Examples

Embodiment 1

[0064] See figure 1 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0065] This embodiment is the most basic implemen...

Embodiment 2

[0067] See figure 2 with image 3 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0068] An induced draft fan 13 is ...

Embodiment 3

[0076] See Figure 3-Figure 5 , A circulating sand soot blowing device, comprising a sand bucket 1 and an electric hoist 2 connected to the top of the furnace, and also comprising a sandblaster connected to the top of the tail shaft and a fluidized bed 3 connected to the bottom of the tail shaft. The sander includes a speed regulating motor 4, a belt pulley 5, a transmission belt 6, a sandblasting pipe 7 and a bearing 8 connected to the sandblasting pipe 7. The sand bucket 1 is connected to the sandblasting pipe 7 through the sand inlet pipe 9, and the speed regulating motor 4 The motor shaft is in transmission connection with the pulley 5, the pulley 5 is in transmission connection with the bearing 8 through the transmission belt 6, the sandblasting pipe 7 is in communication with the tail shaft, and the fluidized bed 3 is connected with an auger driven by the motor 10 11. A sand discharge trolley 12 is connected to the electric hoist 2.

[0077] An induced draft fan 13 is conne...

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