Energy-saving internal heat pipe dryer

Abstract

The utility model discloses an energy-saving type internal heat pipe drying machine which comprises an internal heat pipe drying machine body, a tail gas shunting fan, a water vapor dust remover and a chimney. A gas inlet of the tail gas shunting fan is connected with a high-temperature tail gas outlet of the inner heat pipe dryer body; an air inlet of the water vapor dust remover is connected with a water vapor and flue gas outlet of the inner heat pipe dryer; an air outlet of the water vapor dust remover is connected with a chimney; and an air outlet of the tail gas shunting fan is respectively communicated with an air inlet of the water vapor dust remover, the chimney and a secondary fan of the inner heat pipe dryer through pipelines. High-temperature tail gas is shunted and utilized through the tail gas shunting fan, heat energy recycling is achieved, heat pollution is reduced, and dewing of the dust remover is prevented.

Description

Technical Field

[0001] The utility model relates to the field of drying machines, in particular to an energy-saving internal heat pipe drying machine. Background Art

[0002] At present, the well-known "rotary dryer" is mainly used to dry materials such as clay, coal powder, iron powder, quartz, slag, metal ore dressing concentrate, etc. (see "Cement Equipment Manual" Chapter 2, pages 71-86. Hunan Science and Technology Press, 1987 hand-printed version). The material is dried by generating high-temperature hot flue gas through a burner. However, the current dryer process is that the material enters the dryer from the feed port, exits the dryer from the discharge port, and the water vapor is discharged from the steam outlet to the dust collector-blower-chimney; the hot flue gas from the hot blast furnace enters from the hot air inlet, passes through the heat exchange tube, and exits from the hot air tail gas outlet of the heat exchange tube-blower-chimney, forming indirect drying. Without the use of waste heat, thermal pollution will also be caused. Summary of the invention

[0003] The problem to be solved by the present invention is to propose an improvement or replacement scheme for the above-mentioned shortcomings of the prior art, especially an improvement or replacement scheme for effectively utilizing waste heat while reducing thermal pollution.

[0004] In order to solve the above problems, the solution adopted by the utility model is as follows: an energy-saving internal heat pipe dryer, characterized in that it includes an internal heat pipe dryer body, an exhaust gas diversion fan, a water vapor dust collector and a chimney; the air inlet of the exhaust gas diversion fan is connected to the high-temperature exhaust gas outlet of the internal heat pipe dryer body; the air inlet of the water vapor dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer; the air outlet of the water vapor dust collector is connected to the chimney; the air outlet of the exhaust gas diversion fan is connected to the air inlet of the water vapor dust collector, the chimney and the secondary fan of the internal heat pipe dryer through pipelines.

[0005] Further, the energy-saving internal heat pipe dryer is characterized in that the internal heat pipe dryer body comprises an integrated burner, a gas hot blast furnace, a secondary fan, a rotating drive assembly, a drying cylinder, an internal heat pipe, a feeding cylinder and a discharging cylinder; the integrated burner is connected to the gas hot blast furnace to form a high-temperature flue gas generator, and the secondary fan is connected to the gas hot blast furnace; the internal heat pipe is fixed to the inner wall of the drying cylinder by a mounting bracket, and both ends are sealed by end support plates, the internal heat pipe runs through the end support plates, and the feeding cylinder and the discharging cylinder are fixedly connected to the openings on the end support plates; the feeding end of the drying cylinder is provided with a hot air head cover to connect the high-temperature flue gas generator with the internal heat pipe, and the discharging end of the drying cylinder is provided with a hot air tail cover, and the hot air tail cover is provided with a high-temperature exhaust gas outlet to connect the internal heat pipe with the exhaust gas diversion fan; the discharging cylinder is provided with a discharging cover, and a water vapor and smoke outlet is provided on the top of the discharging cover, and a dry material outlet is provided at the bottom; the rotating drive assembly is connected to the drying cylinder for driving the drying cylinder to rotate.

[0006] Furthermore, the energy-saving internal heat pipe dryer is characterized in that a diverter valve is provided on the pipe of the exhaust gas diverter fan outlet to control the flow of hot flue gas flowing to the secondary fan, steam dust collector or chimney.

[0007] Furthermore, the energy-saving internal heat pipe dryer is characterized in that the water vapor dust collector includes a bag dust collector and a water vapor induced draft fan; the air inlet of the bag dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer, the air outlet of the bag dust collector is connected to the air inlet of the water vapor induced draft fan, and the air outlet of the water vapor induced draft fan is connected to the chimney.

[0008] Furthermore, the energy-saving internal heat pipe dryer is characterized in that the internal heat pipe dryer body also includes a feed feeder; a feed cover is provided on the feed barrel, and the feed feeder is matched with the feed cover to feed the material into the feed barrel.

[0009] The technical effects of the utility model are as follows: the process of the energy-saving internal heat pipe dryer of the present application is as follows: the material enters the dryer from the feed port, exits the dryer from the discharge port, and the water vapor is discharged from the steam outlet to the water vapor dust removal-fan-chimney; the hot flue gas of the hot blast furnace enters from the hot air inlet, passes through the heat exchange tube, and exits from the hot air tail gas outlet of the heat exchange tube-fan-part of it goes to the secondary fan of the hot blast furnace, part of it goes to the water vapor dust removal (to prevent condensation of water vapor dust removal), and the excess part goes to the chimney, forming indirect drying. Effectively utilize waste heat and reduce thermal pollution at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the dryer structure for this application.

[0011] Figure 2 for Figure 1 Cross-section view along the A axis.

[0012] Figure 3 for Figure 1 Cross-sectional view along B axis.

[0013] Figure 4 for Figure 1 Cross-section view along the C axis.

[0014] Figure 5 for Figure 1 Cross-sectional view along the D axis.

[0015] Figure 6 for Figure 1 Cross-sectional view along the E axis.

[0016] Among them, 1 is an integrated burner, 2 is a secondary fan, 3 is a gas hot air furnace, 4 is a drying cylinder, 5 is an exhaust gas diversion fan, 6 is a diversion valve, 7 is a water vapor dust collector, 8 is a water vapor induced draft fan, 9 is a chimney, 41 is a feed barrel, 42 is a discharge barrel, 43 is a hot air head hood, 44 is a hot air tail hood, 45 is a discharge hood, 46 is a water vapor and smoke outlet, and 47 is a dry material outlet. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Example: Figure 1 As shown, an energy-saving internal heat pipe dryer includes an internal heat pipe dryer body, an exhaust gas diversion fan, a water vapor dust collector and a chimney; the air inlet of the exhaust gas diversion fan is connected to the high-temperature exhaust gas outlet of the internal heat pipe dryer body; the air inlet of the water vapor dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer; the air outlet of the water vapor dust collector is connected to the chimney; the air outlet of the exhaust gas diversion fan is connected to the air inlet of the water vapor dust collector, the chimney and the secondary fan of the internal heat pipe dryer through pipelines.

[0019] like Figure 2 , Figure 3 As shown, the internal heat pipe dryer body comprises an integrated burner, a gas hot blast furnace, a secondary fan, a rotating drive assembly, a drying cylinder, an internal heat pipe, a feeding cylinder and a discharging cylinder; the integrated burner is connected to the gas hot blast furnace to form a high-temperature flue gas generator, and the secondary fan is connected to the gas hot blast furnace; the internal heat pipe is fixed to the inner wall of the drying cylinder by a mounting bracket, and both ends are sealed by end support plates, and the internal heat pipe runs through the end support plates, and the feeding cylinder and the discharging cylinder are fixedly connected to the openings on the end support plates; the feeding end of the drying cylinder is provided with a hot air head hood to connect the high-temperature flue gas generator with the internal heat pipe, and the discharging end of the drying cylinder is provided with a hot air tail hood, and the hot air tail hood is provided with a high-temperature exhaust gas outlet to connect the internal heat pipe with the exhaust gas diversion fan; the discharging cylinder is provided with a discharging hood, and a water vapor and smoke outlet is provided on the top of the discharging hood, and a dry material outlet is provided at the bottom; the rotating drive assembly is connected to the drying cylinder for driving the drying cylinder to rotate.

[0020] like Figure 4 As shown, the water vapor dust collector includes a bag dust collector and a water vapor induced draft fan; the air inlet of the bag dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer, the air outlet of the bag dust collector is connected to the air inlet of the water vapor induced draft fan, and the air outlet of the water vapor induced draft fan is connected to the chimney.

[0021] like Figure 5 , Figure 6 As shown, a diverter valve is provided on the pipe at the outlet of the exhaust gas diverter fan to control the flow of hot flue gas to the secondary fan, the steam dust collector or the chimney.

Claims

1. An energy-saving internal heat pipe drying machine, characterized in that: It includes an internal heat pipe dryer body, an exhaust gas diversion fan, a water vapor dust collector and a chimney; the air inlet of the exhaust gas diversion fan is connected to the high-temperature exhaust gas outlet of the internal heat pipe dryer body; the air inlet of the water vapor dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer; the air outlet of the water vapor dust collector is connected to the chimney; the air outlet of the exhaust gas diversion fan is connected to the air inlet of the water vapor dust collector, the chimney and the secondary fan of the internal heat pipe dryer through pipelines.

2. The energy-saving internal heat pipe drying machine according to claim 1, characterized in that: The internal heat pipe dryer body comprises an integrated burner, a gas hot blast furnace, a secondary fan, a rotating drive assembly, a drying cylinder, an internal heat pipe, a feeding cylinder and a discharging cylinder; the integrated burner is connected with the gas hot blast furnace to form a high-temperature flue gas generator, and the secondary fan is connected with the gas hot blast furnace; the internal heat pipe is fixed to the inner wall of the drying cylinder by a mounting bracket, and both ends are sealed by end support plates, the internal heat pipe runs through the end support plates, and the feeding cylinder and the discharging cylinder are fixedly connected with the openings on the end support plates; the feeding end of the drying cylinder is provided with a hot air head cover to connect the high-temperature flue gas generator with the internal heat pipe, and the discharging end of the drying cylinder is provided with a hot air tail cover, and the hot air tail cover is provided with a high-temperature exhaust gas outlet to connect the internal heat pipe with the exhaust gas diversion fan; the discharging cylinder is provided with a discharging cover, and a water vapor and smoke outlet is provided on the top of the discharging cover, and a dry material outlet is provided at the bottom; the rotating drive assembly is connected with the drying cylinder to drive the drying cylinder to rotate.

3. The energy-saving internal heat pipe drying machine according to claim 1, characterized in that: A diverter valve is provided on the pipe of the exhaust gas diverter fan outlet to control the flow of hot flue gas flowing to the secondary fan, the steam dust collector or the chimney.

4. The energy-saving internal heat pipe drying machine according to claim 1, characterized in that: The water vapor dust collector comprises a bag dust collector and a water vapor induced draft fan; the air inlet of the bag dust collector is connected to the water vapor and smoke outlet of the internal heat pipe dryer, the air outlet of the bag dust collector is connected to the air inlet of the water vapor induced draft fan, and the air outlet of the water vapor induced draft fan is connected to the chimney.

5. The energy-saving internal heat pipe drying machine according to claim 2, characterized in that: The internal heat pipe drying machine body also includes a feed feeder; a feed cover is sleeved on the feed barrel, and the feed feeder matches the feed cover and is used to feed the material into the feed barrel.

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