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CN-224230618-U - Rotary flash evaporation dryer

CN224230618UCN 224230618 UCN224230618 UCN 224230618UCN-224230618-U

Abstract

The utility model discloses a spin flash dryer which comprises a base, a burner, a flash dryer body, a cyclone separator and a bag-type dust remover, wherein the burner, the flash dryer body, the cyclone separator and the bag-type dust remover are arranged on the base, the output end of the burner is connected with the flash dryer body through a pipeline, and the flash dryer body is communicated with the cyclone separator through the pipeline. According to the utility model, high-temperature waste gas is discharged into the bag-type dust remover for filtering, then is discharged into the spiral heat exchange tube in the convection box, and is discharged, the fan is started, and simultaneously, the pumped air flows through the spiral heat exchange tube in the convection box to be contacted with the spiral heat exchange tube, so that heat exchange is realized, heat absorption is carried out on the tail gas to heat the inlet air, and then the heated air is pumped into the combustor through the communication piece by the fan, so that the device has the advantages of recycling the heat of the high-temperature tail gas, increasing heat conduction efficiency by utilizing cold and hot air convection, and improving heat recovery efficiency by matching with the high-pressure inlet air flow.

Inventors

  • Ge Guinian
  • GE FENG

Assignees

  • 常州大楚干燥设备有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (6)

  1. 1. The utility model provides a spin flash dryer, includes base (10) and installs combustor (1), flash dryer main part (2), cyclone (3) and sack cleaner (4) on base (10), the output of combustor (1) is connected with flash dryer main part (2) through the pipeline, flash dryer main part (2) are through pipeline and cyclone (3) UNICOM, the exhaust end and the sack cleaner (4) of cyclone (3) communicate, the exhaust end fixed mounting of sack cleaner (4) has blast pipe (5), wherein convection current case (6) are installed at the top of base (10), the inside fixed mounting of convection current case (6) has spiral heat exchange tube (7), the one end that sack cleaner (4) were kept away from to blast pipe (5) runs through and fixed to the inside of convection current case (6) and communicates fixedly connected with the bottom of spiral heat exchange tube (7), the other end of spiral heat exchange tube (7) runs through and fixedly connected to the outside of convection current case (6), the input end of combustor (1) has convection current case (8), the inside fixed mounting of base (1) has convection current case (9) and combustor (6).
  2. 2. The spin flash dryer as claimed in claim 1, wherein the communication member (9) comprises a communication pipe (91) and a pressure valve (92), the communication pipe (91) is fixedly installed inside the base (10), both ends of the communication pipe (91) penetrate through the top of the base (10) and are respectively communicated and fixed with the input end of the fan (8) and the convection box (6), and the pressure valve (92) is fixedly installed at the right end of the communication pipe (91) for pressurizing gas inside the convection box (6).
  3. 3. The spin flash dryer of claim 1, wherein a booster air pump (61) is fixedly arranged at the top of the convection box (6), and the output end of the booster air pump (61) is fixedly communicated with the inside of the convection box (6).
  4. 4. The spin flash dryer of claim 1, wherein the inner side and the outer side of the spiral heat exchange tube (7) are fixedly connected with annularly distributed heat conducting fins (71).
  5. 5. A spin flash dryer as claimed in claim 1, wherein a pressure sensor (62) is fixedly installed in the convection box (6) for detecting the air pressure value in the convection box (6) in real time.
  6. 6. The spin flash dryer of claim 5, wherein a solenoid valve pipe (63) integrating a PLC control module is fixedly installed on the outer side of the convection box (6), and the PLC control module on the solenoid valve pipe (63) is used for receiving a monitoring value of a pressure sensor (62) and controlling the opening and closing of the solenoid valve pipe (63) according to pressure change.

Description

Rotary flash evaporation dryer Technical Field The utility model relates to the technical field of drying equipment, in particular to a spin flash dryer. Background The rotary flash dryer is a common drying device in industry, and has the working principle that hot air enters a stirring and crushing drying chamber from the bottom of the dryer through an inlet pipe at a proper spraying speed, so that strong shearing, collision and friction are generated on materials to be atomized, mass and heat transfer are enhanced, the temperature of hot air entering from the bottom of the dryer is very high, the temperature can reach 200 ℃ after the hot air is combusted through a combustion chamber, and the temperature is 100 ℃ or more when the materials are dried, separated and discharged. In the prior art, heat energy recovery of tail gas generally adopts a heat exchanger to realize heat energy exchange of cold and hot air, and high-temperature tail gas is utilized to heat inlet air, so that part of heat energy is recovered and supplied to a combustion chamber for combustion. However, because the inlet air flow speed is high, the contact time with the heat exchanger is short, the heat exchange efficiency is low, and the recovery utilization rate of the tail gas heat energy is low. Disclosure of utility model Aiming at the problems in the prior art, the utility model aims to provide a spin flash dryer to solve the problems in the background technology. In order to achieve the above purpose, the present utility model adopts the following technical scheme; The utility model provides a rotatory flash dryer, includes the base and installs combustor, flash dryer main part, cyclone and the sack cleaner on the base, the output of combustor passes through the pipeline and is connected with flash dryer main part, the flash dryer main part passes through pipeline and cyclone UNICOM, cyclone's exhaust end and sack cleaner intercommunication, the exhaust end fixed mounting of sack cleaner has the blast pipe, the convection current case is installed at the top of base, the inside fixed mounting of convection current case has spiral heat exchange tube, the blast pipe is kept away from the one end of sack cleaner and is run through and fixed to the inside of convection current case and with spiral heat exchange tube's bottom intercommunication is fixed, the other end of spiral heat exchange tube runs through and fixed connection to the outside of convection current case, the input fixed mounting of combustor has the fan, the internally mounted of base has the intercommunication piece that is used for intercommunication convection current case and combustor. As a further description of the above technical solution, the communicating member includes a communicating pipe fixedly installed to an inside of the base, both ends of the communicating pipe penetrate through a top of the base and are fixedly communicated with the fan input end and the convection box, respectively, and a pressure valve fixedly installed to an end portion on a right side of the communicating pipe for pressurizing gas inside the convection box. As further description of the technical scheme, the pressurizing air pump is fixedly arranged at the top of the convection box, and the output end of the pressurizing air pump is fixedly communicated with the inside of the convection box. As further description of the technical scheme, the inner side and the outer side of the spiral heat exchange tube are fixedly connected with heat conducting fins which are distributed in an annular mode. As a further description of the technical scheme, a pressure sensor is fixedly arranged in the convection box and used for detecting the air pressure value in the convection box in real time. As a further description of the technical scheme, an electromagnetic valve pipe integrating a PLC control module is fixedly arranged on the outer side of the convection box, and the PLC control module on the electromagnetic valve pipe is used for receiving the monitoring value of the pressure sensor and controlling the opening and closing of the electromagnetic valve pipe according to the pressure change. Compared with the prior art, the utility model has the advantages that: This scheme is through setting up booster pump cooperation intercommunication piece for the inside cold air flow pressure that admits air of convection current case increases, increases heat exchange density, thereby has realized that the device possesses the heat to high temperature tail gas and carries out recycle, and utilizes cold and hot air convection to increase heat transfer efficiency, and cooperates the high pressure to admit air the flow, improves heat recovery efficiency's advantage. Drawings FIG. 1 is a schematic cross-sectional elevation view of the present utility model; FIG. 2 is an enlarged schematic view of the portion A of FIG. 1; FIG. 3 is a schematic view of a partial top view cross-section of the present uti