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CN-116857940-B - Waste heat recycling system

CN116857940BCN 116857940 BCN116857940 BCN 116857940BCN-116857940-B

Abstract

The invention discloses a waste heat recycling system which comprises a drying chamber main body, wherein a first drying chamber and a second drying chamber which are arranged in a vertically layered mode are arranged in the drying chamber main body, a vertical upwards smoke discharging main channel is arranged on the drying chamber main body, a switching flue system communicated with the smoke discharging main channel is arranged on the first drying chamber, the smoke discharging main channel is communicated with the second drying chamber through a waste heat smoke switching system, the second drying chamber is communicated with the smoke discharging main channel through the smoke discharging system, an electric heating table extending into the first drying chamber or the second drying chamber is arranged on the drying chamber main body through an adjusting mechanism, and the first drying chamber and the second drying chamber are communicated through the waste heat smoke switching system.

Inventors

  • YU DAJIE
  • Leng Chuanming

Assignees

  • 鼎信阳光环境技术有限公司

Dates

Publication Date
20260512
Application Date
20230714

Claims (7)

  1. 1. The waste heat recycling system is characterized by comprising a drying chamber main body (1), wherein a first drying chamber (2) and a second drying chamber (3) which are arranged in an up-down layered mode are arranged in the drying chamber main body (1), a smoke discharging main channel (4) which is vertically upwards arranged on the drying chamber main body (1), the smoke discharging main channel (4) is communicated with the first drying chamber (2) through a waste heat smoke switching system (5), the second drying chamber (3) is communicated with the smoke discharging main channel (4) through a smoke discharging system (8), and an electric heating table (7) which extends into the first drying chamber (2) or the second drying chamber (3) is arranged on the drying chamber main body (1) through an adjusting mechanism (6); The regulating mechanism (6) comprises a guide pipe (9) which is arranged on the drying chamber main body (1) and vertically downward, a through hole (10) which corresponds to the first drying chamber (2) and the second drying chamber (3) is formed in the guide pipe (9), a moving frame (11) which moves along the guide pipe (9) is arranged in the guide pipe (9), the electric heating table (7) is arranged on the moving frame (11), a closing block (12) which is used for closing the through hole (10) in the guide pipe (9) is arranged on the moving frame (11), and a lifting mechanism (13) which is used for lifting the moving frame (11) is arranged on the drying chamber main body (1); The waste heat flue gas switching system (5) comprises a plurality of first flue gas outlets (14) arranged along the inner wall of a first drying chamber (2), wherein the first flue gas outlets (14) are communicated with a main flue gas discharge channel (4) through independent first heat insulation flues (15), a first electric valve plate (16) is arranged on the main flue gas discharge channel (4), a fourth electric valve plate is arranged on each first heat insulation flue (15), the fourth electric valve plate is used for carrying out closing control on the first flue gas outlets (14), a plurality of first flue gas outlets (14) are alternately opened, only one first flue gas outlet (14) is in an opened state at the same time, a plurality of inlets (18) on the second drying chamber (3) are connected with the main flue gas discharge channel (4) through second heat insulation flues (19), a second electric valve plate (20) is arranged on each second heat insulation flue gas channel (19), and the second electric valve plate (20) is used for carrying out closing control on the first flue gas outlets (14), and a plurality of inlets (18) are alternately opened at the same time; The smoke exhaust system (8) comprises a plurality of second smoke outlets (21) formed in the inner wall of the second drying chamber, the second smoke outlets (21) are communicated with the upper end of the smoke exhaust main channel (4) through independent third heat insulation flues (22), third electric valve plates (23) are arranged on the third heat insulation flues (22), the third electric valve plates (23) are used for conducting closing control on the second smoke outlets (21), the second smoke outlets (21) are alternately opened, and only one second smoke outlet (21) is in an opened state at the same time.
  2. 2. Waste heat recycling system according to claim 1, characterized in that a plurality of ventilation openings (24) are arranged on the kiln wall between the first drying chamber (2) and the second drying chamber (3), a groove (25) is arranged above the ventilation openings (24), and a closed heat insulation block (26) for closing the ventilation openings (24) is arranged in the groove (25).
  3. 3. Waste heat recovery system according to claim 2, characterized in that a plurality of first temperature sensors (27) distributed in the first drying chamber (2) and used for detecting the temperature in the first drying chamber (2) are arranged in the first drying chamber (2).
  4. 4. Waste heat recovery system according to claim 2, characterized in that a plurality of second temperature sensors (28) distributed in the second drying chamber (3) and used for detecting the temperature in the second drying chamber (3) are arranged in the second drying chamber (3).
  5. 5. Waste heat recovery system according to claim 2, characterized in that the end of the main flue (4) is provided with a draught fan (29).
  6. 6. The waste heat recycling system according to claim 2, wherein a communicating pipe (31) is further arranged between the first drying chamber (2) and the second drying chamber (3), a conveying fan (32) and a switch valve (33) are arranged on the communicating pipe (31), and air inlet pipes (34) are arranged on the first drying chamber (2) and the second drying chamber (3).
  7. 7. A waste heat recovery and utilization system according to any one of claims 1-6, wherein the waste heat recovery and utilization system is used by a method of, When the first drying chamber (2) is dried, the electric heating table (7) is positioned in the first drying chamber (2), waste heat gas of the first drying chamber (2) enters the smoke discharging main channel (4), then is sent into the second drying chamber (3) through the waste heat smoke switching system (5) to dry objects in the second drying chamber (3), tail gas in the second drying chamber (3) is sent into the smoke discharging main channel (4) through the smoke discharging system (8), and the regulating mechanism (6) transfers the electric heating table (7) into the second drying chamber (3) to dry.

Description

Waste heat recycling system Technical Field The invention relates to the technical field related to drying waste heat recovery, in particular to a waste heat recovery and utilization system. Background When various drying devices are operated, a large amount of heat is discharged outdoors through the heat radiating device and the exhaust pipeline, the heat efficiency is very low, and a large amount of energy sources are wasted. At present, a drying waste heat recovery system is widely accepted, waste heat wind from a waste heat air outlet of a dryer is generally led into a heat collecting device, and the heat dissipation heat is collected in a heat exchange mode in the prior art, but the drying waste heat recovery system has some defects in the actual use process, such as heat energy obtained by heat exchange cannot be well used for drying objects, but is only recovered, so that energy consumption in the drying process is not reduced. Disclosure of Invention In order to solve the defects that the heat dissipation heat is collected in a heat exchange mode in the prior art, but the heat dissipation heat has some defects in the actual use process, such as that the heat energy obtained by heat exchange cannot be well used for drying objects, but is only recovered, so that the energy consumption in the drying process cannot be reduced, the invention provides a waste heat recycling system. In order to solve the technical problems, the invention provides the following technical scheme: The invention discloses a waste heat recycling system, which comprises a drying chamber main body, wherein a first drying chamber and a second drying chamber which are arranged in an up-down layered mode are arranged in the drying chamber main body, a smoke discharging main channel which is vertically upwards arranged on the drying chamber main body and communicated with the first drying chamber through a waste heat smoke switching system, a second drying chamber is communicated with the smoke discharging main channel through the smoke discharging system, and an electric heating table which extends into the first drying chamber or the second drying chamber is arranged on the drying chamber main body through an adjusting mechanism. As a preferable technical scheme of the invention, the regulating mechanism comprises a guide pipe which is arranged on the drying chamber main body and vertically downward, the guide pipe is provided with a through hole corresponding to the first drying chamber and the second drying chamber, a moving frame which moves along the guide pipe is arranged in the guide pipe, the electric heating table is arranged on the moving frame, the moving frame is provided with a closing block for closing the through hole on the guide pipe, and the drying chamber main body is provided with a lifting mechanism for lifting the moving frame. The waste heat flue gas switching system comprises a plurality of first flue gas outlets arranged along the inner wall of a first drying chamber, wherein the first flue gas outlets are communicated with a main flue gas discharge channel through independent first heat insulation flues, a first electric valve plate is arranged on the main flue gas discharge channel, a fourth electric valve plate is arranged on each first heat insulation flue, the fourth electric valve plate is used for conducting closing control on the first flue gas outlets, the first flue gas outlets are alternately opened, only one first flue gas outlet is in an opened state at the same time, a plurality of inlets on a second drying chamber are connected with the main flue gas discharge channel through second heat insulation flues, each inlet is provided with a second electric valve plate, the second electric valve plates are used for conducting closing control on the inlets, and the inlets are alternately opened. As a preferable technical scheme of the invention, the smoke exhaust system comprises a plurality of second smoke outlets arranged on the inner wall of the second drying chamber, the second smoke outlets are communicated with the upper end of the smoke exhaust main channel through independent third heat insulation flues, third electric valve plates are arranged on the third heat insulation flues and used for carrying out closing control on the second smoke outlets, the second smoke outlets are alternately opened, and only one second smoke outlet is in an opened state at the same time. As a preferable technical scheme of the invention, a plurality of ventilation openings are arranged on the kiln wall between the first drying chamber and the second drying chamber, a groove is arranged above the ventilation openings, and a closed heat insulation block for closing the ventilation openings is arranged in the groove. As a preferable embodiment of the present invention, the first drying chamber is provided therein with a plurality of first temperature sensors distributed in the first drying chamber and configured to