Split type hot blast stove

A hot blast stove, split-type technology, applied in the field of split-type hot blast stove, can solve the problems of large heat loss of secondary combustion furnace, large difference in flue gas temperature, insufficient combustion of biomass particles, etc., to achieve convenient flue gas temperature, heat The effect of small loss and convenient adjustment

Pending Publication Date: 2019-07-30
湖南郴州粮油机械有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a split-type hot blast stove to at least solve the problem of insufficient combustion of biomass particles in the hot blast stove in the prior art, large differences in flue gas temperature entering various parts of the flue gas passage at the lower end of the heat pipe, and secondary combustion furnace The problem of high heat loss

Method used

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  • Split type hot blast stove
  • Split type hot blast stove
  • Split type hot blast stove

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1 to Figure 8 , a split-type hot blast stove according to an embodiment of the present invention, the split-type hot blast stove is mainly used to burn biomass particles, recover the heat of flue gas generated by combustion, and form clean hot air, which is used for materials (such as grain ) drying or hot air for industrial and domestic use.

[0040] Depend on Figure 1 to Figure 8 It can be seen that the split hot blast stove mainly includes a burner 10 , a secondary combustion furnace 20 and a flue gas heat exchange device 30 . Wherein, the flame nozzle 11 of the burner 10 communicates with the flame receiving port 21 of the secondary combustion furnace 20 , and the flue gas outlet 22 of the secondary combustion furnace 20 communicates with the flue gas inlet 31 of the flue gas heat exchange device 30 . The furnace wall 23 of the secondary combustion furnace 20 is provided with an air intake interlayer 24, and a blower 25 is installed on the furnace wal...

Embodiment 2

[0054] Another embodiment of the split-type hot blast stove of the present invention, the main structure of the hot blast stove of this embodiment is the same as that of Embodiment 1, the main difference is that the structures of the flue gas heat exchange chamber 322 and the clean air heat exchange chamber 323 are different. see Figure 9 and Figure 10 , in this embodiment, in order to facilitate transportation and reduce the overall length of the equipment, two flue gas heat exchange chambers 322 of the split-type hot blast stove are set, and the two flue gas heat exchange chambers 322 are arranged side by side, and the two flue gas heat exchange chambers The heat chambers 322 are separated by a vertical flue gas partition 327, and the two flue gas heat exchange chambers 322 communicate with each other at the ends to form a U-shaped flue gas channel; there are also two clean air heat exchange chambers 323, Two clean air heat exchange chambers 323 are arranged side by side,...

Embodiment 3

[0057] Another embodiment of the split hot blast stove of the present invention, the main structure of the hot blast stove of this embodiment is the same as that of embodiment 1 or embodiment 2, compared with embodiment 1 and embodiment 2, the split hot blast stove of this embodiment The main difference is that the automatic thermostat electric control device is added.

[0058] see figure 1 , in order to regulate the flue gas temperature and clean hot air temperature more conveniently, the split type hot blast stove also includes an automatic temperature regulation electric control device, which includes a flue gas temperature measurement probe 50, a clean air temperature measurement probe 60. The tail smoke temperature measuring probe (not shown in the figure) and the temperature adjustment controller 12. The flue gas temperature measuring probe 50 is installed near the flue gas inlet 31 of the flue gas heat exchange chamber 322 to detect the temperature of the flue gas ente...

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Abstract

The invention discloses a split type hot blast stove which comprises a burner, a secondary burning furnace and a flue gas heat exchange device. A flame nozzle of the burner communicates with a flame receiving port of the secondary burning furnace, a flue gas outlet of the secondary burning furnace communicates with a flue gas inlet of the flue gas heat exchange device, an air inlet interlayer is arranged in the furnace wall of the secondary burning furnace, a blower is arranged on the furnace wall, an air outlet of the blower communicates with an air inlet of the air inlet interlayer, and theair inlet interlayer communicates with a hearth of the secondary burning furnace through the air inlet. The split-type hot blast stove is small in heat loss, high in heat utilization rate, sufficientin biomass particle combustion and environmentally friendly, the flue gas temperature is convenient to adjust, and the split type hot blast stove is suitable for burning granular fuels manufactured byvarious forestry and agricultural biomass leftover materials without slagging.

Description

technical field [0001] The invention relates to the technical field of hot blast stoves, in particular to a split hot blast stove. Background technique [0002] At present, most of the heat exchangers of hot blast stoves commonly used in the market are tube-and-tube structures. The high-temperature flue gas flows inside the tubes, and the air flows outside the tubes. Through the tube walls of the tubes, the heat of the high-temperature flue gas is transferred to Air. [0003] In the hot blast stove of the tube-and-tube heat exchanger, due to the large temperature difference between the flue gas in the tube and the air outside the tube, a large temperature difference stress will be formed between the heat exchange surfaces, which will easily lead to the expansion of the heat exchange tube. And the tube plate is cracked, and the maintenance is difficult. In addition, due to the small heat exchange area and low heat exchange efficiency of the tubes per unit length, the tube-a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H3/06F24H9/18F24H9/00F24H9/20
CPCF24H3/067F24H9/0052F24H9/189F24H9/2092
Inventor 吴杰俊贺宇峰郭梦奥
Owner 湖南郴州粮油机械有限公司
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