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CN-224215863-U - Recycling device for tail gas of enamel gas furnace

CN224215863UCN 224215863 UCN224215863 UCN 224215863UCN-224215863-U

Abstract

The utility model discloses a recycling device of tail gas of an enamel gas furnace, which belongs to the technical field of treatment of tail gas of a furnace and comprises an air inlet pipe and an air outlet pipe, wherein the air outlet pipe is fixedly arranged on the inner side of the air inlet pipe, one end of the air outlet pipe is rotatably connected with a preheating pipe, the preheating pipe extends to the outer side of the air inlet pipe, the preheating structure comprises a fixed ring fixedly sleeved on the preheating pipe, a fixed bracket is rotatably sleeved on the fixed ring, the fixed bracket is fixedly connected with the inner wall of the air inlet pipe, and a motor is fixedly arranged in the air inlet pipe. The utility model rotates the preheating pipe to drive the tail gas at the inner side of the preheating pipe to rotate, thereby playing a centrifugal effect, enabling the gas in the preheating pipe to be closer to the inner wall of the preheating pipe, improving the heat exchange efficiency and the energy utilization rate, and simultaneously installing the cleaning structure, and being capable of automatically cleaning the surface of the preheating pipe, thereby avoiding sundries from adhering to the outer side of the preheating pipe.

Inventors

  • WU HAIBO

Assignees

  • 深圳市鑫意海科技有限公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (6)

  1. 1. The utility model provides a cyclic utilization device of enamel gas furnace kiln tail gas which characterized in that includes: The air inlet pipe (1) and the air outlet pipe (2), wherein the air outlet pipe (2) is fixedly arranged on the inner side of the air inlet pipe (1), one end of the air outlet pipe (2) is rotatably connected with a preheating pipe (3), and the preheating pipe (3) extends to the outer side of the air inlet pipe (1); The preheating structure comprises a fixed ring (4) fixedly sleeved on a preheating pipe (3), a fixed support (5) is rotatably sleeved on the fixed ring (4), the fixed support (5) is fixedly connected with the inner wall of the air inlet pipe (1), a motor (14) is fixedly installed in the air inlet pipe (1), a rotary rod (15) is fixedly connected with the output end of the motor (14), the rotary rod (15) is in transmission connection with the fixed ring (4) through a belt transmission assembly (6), and a cleaning structure is installed in the air inlet pipe (1).
  2. 2. The recycling device for tail gas of an enamel gas furnace according to claim 1, wherein the cleaning structure comprises a connecting bracket (10) fixedly connected to the inner wall of the gas inlet pipe (1), a reciprocating screw rod (11) is rotationally connected between the connecting brackets (10), a screw rod sliding block (13) is mechanically matched with the reciprocating screw rod (11), a cleaning ring (12) is fixedly connected to the screw rod sliding block (13), the cleaning ring (12) is sleeved at the outer side of the preheating pipe (3), one end of the reciprocating screw rod (11) penetrates through the corresponding connecting bracket (10) and is fixedly connected with a connecting gear (9), and a fixed gear (8) meshed with the connecting gear (9) is fixedly sleeved on the preheating pipe (3).
  3. 3. The recycling device for tail gas of enamel gas furnace according to claim 2, wherein the inner wall of the cleaning ring (12) is fixedly provided with a scraper, the scraper is attached to the outer wall of the preheating pipe (3), and the side wall of the scraper is provided with a chamfer.
  4. 4. The recycling device for tail gas of an enamel gas furnace according to claim 1, wherein the preheating pipe (3) is integrally made of metal copper, a heat insulation foam plate is fixedly arranged on the inner wall of the gas inlet pipe (1), and the position of the heat insulation foam plate corresponds to that of the preheating pipe (3).
  5. 5. The recycling device for tail gas of an enamel gas furnace according to claim 1, wherein a plurality of support rods are fixedly arranged at the bottom end of the gas inlet pipe (1), and a damping structure is fixedly connected between each support rod and the gas inlet pipe (1).
  6. 6. The recycling device for tail gas of enamel gas furnaces according to claim 1, characterised in that the fixing ring (4) is fixedly provided with fan blades (7).

Description

Recycling device for tail gas of enamel gas furnace Technical Field The utility model relates to the technical field of treatment of kiln tail gas, in particular to a recycling device of enamel gas furnace tail gas. Background When the tail gas of the gas furnace is discharged, the temperature of the tail gas is generally above 200 ℃, and after the tail gas is discharged, the heat in the tail gas cannot be utilized, so that the waste of energy is caused, and meanwhile, the tail gas with the too high temperature can possibly cause danger, so that a recycling device for the tail gas of the gas furnace is needed. When the existing tail gas utilization device is used, most of the heat energy of the tail gas is absorbed through the mode that the air inlet pipe is used for coating the exhaust pipe, the heat energy recovery efficiency is low, the energy recycling is not facilitated, meanwhile, after the exhaust pipe is used for a long time, impurities are easily adhered to the outer side of the exhaust pipe, the heat exchange efficiency is further reduced, and the device is not facilitated to use. Disclosure of utility model The utility model aims to solve the defects in the prior art, and provides a recycling device for tail gas of an enamel gas furnace. In order to achieve the above purpose, the present utility model adopts the following technical scheme: a recycling device for tail gas of an enamel gas furnace, comprising: The air inlet pipe and the air outlet pipe are fixedly arranged on the inner side of the air inlet pipe, one end of the air outlet pipe is rotatably connected with a preheating pipe, and the preheating pipe extends to the outer side of the air inlet pipe; The preheating structure comprises a fixed ring fixedly sleeved on the preheating pipe, a fixed support is rotatably sleeved on the fixed ring, the fixed support is fixedly connected with the inner wall of the air inlet pipe, a motor is fixedly installed in the air inlet pipe, the output end of the motor is fixedly connected with a rotary rod, the rotary rod is in transmission connection with the fixed ring through a belt transmission assembly, and a cleaning structure is installed in the air inlet pipe. Preferably, the cleaning structure comprises connecting brackets fixedly connected to the inner wall of the air inlet pipe, a reciprocating screw rod is rotatably connected between the connecting brackets, a screw rod sliding block is mechanically matched with the reciprocating screw rod, a cleaning ring is fixedly connected to the screw rod sliding block, the cleaning ring is sleeved on the outer side of the preheating pipe, one end of the reciprocating screw rod penetrates through the corresponding connecting brackets and is fixedly connected with a connecting gear, and a fixed gear meshed with the connecting gear is fixedly sleeved on the preheating pipe. Preferably, the inner wall of the cleaning ring is fixedly provided with a scraper, the scraper is attached to the outer wall of the preheating pipe, and the side wall of the scraper is provided with a chamfer. Preferably, the preheating pipe is integrally made of metal copper, a heat insulation foam board is fixedly arranged on the inner wall of the air inlet pipe, and the position of the heat insulation foam board corresponds to the preheating pipe. Preferably, a plurality of support rods are fixedly arranged at the bottom end of the air inlet pipe, and each support rod is fixedly connected with the air inlet pipe through a damping structure. Preferably, the fan blades are fixedly arranged on the fixing ring. Compared with the prior art, the utility model has the beneficial effects that the preheating pipe is rotated to drive the tail gas at the inner side of the preheating pipe to rotate, so that the centrifugal effect is achieved, the gas in the preheating pipe is more close to the inner wall of the preheating pipe, thereby improving the heat exchange efficiency, improving the energy utilization rate, being beneficial to the cyclic utilization of energy, and simultaneously being provided with the cleaning structure, the surface of the preheating pipe can be automatically cleaned, thereby avoiding the adhesion of sundries at the outer side of the preheating pipe, preventing the heat exchange efficiency of the device from being reduced and being beneficial to the use of the device. Drawings FIG. 1 is a schematic perspective view of a device for recycling tail gas of an enamel gas furnace; FIG. 2 is an enlarged view of FIG. 1 at A; Fig. 3 is a schematic side view perspective structure of a device for recycling tail gas of an enamel gas furnace. In the figure, an air inlet pipe, an air outlet pipe, a preheating pipe 3, a fixing ring 4, a fixing bracket 5, a belt transmission component 6, fan blades 7, a fixing gear 8, a connecting gear 9, a connecting bracket 10, a reciprocating screw rod 11, a cleaning ring 12, a screw rod slider 13, a motor 14 and a rotary rod 15 are arranged. Detailed