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Six-surface heat exchange hot-blast stove provided with back wind baffle plate

A technology of rear windshield and hot blast stove, which is applied to air heaters, fluid heaters, lighting and heating equipment, etc., and can solve the problems of high heat storage, low purchase cost, and high heat utilization rate

Inactive Publication Date: 2016-11-09
WUHU CHANGQI FURNACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantages are: high heat exchange temperature, high heat utilization rate, small size, stable hot air temperature, no switching mechanism, long life, high maintenance cost, and low purchase cost; Late, not commonly used

Method used

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  • Six-surface heat exchange hot-blast stove provided with back wind baffle plate
  • Six-surface heat exchange hot-blast stove provided with back wind baffle plate
  • Six-surface heat exchange hot-blast stove provided with back wind baffle plate

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Experimental program
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Effect test

preparation example Construction

[0048] The invention provides a method for preparing a high temperature resistant coating for a hot blast stove, comprising:

[0049] 1) Soaking river mud in acid solution, then filtering to get filter cake to obtain modified river mud;

[0050] 2) Disperse silica gel, sodium zirconate, rare earth oxide and modified river mud in an organic solvent under ultrasonic conditions, and then filter the filter cake to obtain the activated product;

[0051] 3) Contact reaction of organosilicon, acrylonitrile-butadiene-styrene copolymer, maleic anhydride, organic solvent, carbon fiber, diatomaceous earth, cyclodextrin and activator under high pressure and airtight conditions to obtain High temperature resistant coatings for hot blast stoves.

[0052] In step 1) of the present invention, the specifications of the filter paper used for filtering can be selected in a wide range, but in order to improve the high temperature resistance and corrosion resistance of the high temperature resist...

Embodiment 1

[0065] 1) Soak the river mud in an acid solution with a pH of 4 (the weight ratio of the river mud to the acid solution is 100:400), and then filter through filter paper with a pore size of 40 μm to obtain a modified river mud;

[0066] 2) Mix silica gel, sodium zirconate, rare earth oxide (cerium oxide), modified river mud and organic solvent (acetophenone) in a weight ratio of 100:15:25:47:550, and heat Disperse for 7 hours at a frequency of 50 MHz, then filter the filter cake to obtain the activated product;

[0067] 3) Silicone (methyltriethoxysilane), acrylonitrile-butadiene-styrene copolymer, maleic anhydride, organic solvent (cyclohexanone), carbon fiber, diatomaceous earth, cyclodextrin and activated The materials were mixed according to the weight ratio of 100:40:60:300:8:29:10:25, and the contact reaction was carried out at 80°C, 1.8MPa and airtight conditions for 8 hours to prepare the high temperature resistant coating A1 for hot blast stove .

Embodiment 2

[0069] 1) Soak the river mud in an acid solution with a pH of 3 (the weight ratio of the river mud to the acid solution is 100:300), and then filter through a filter paper with a pore size of 30 μm to obtain a filter cake to obtain a modified river mud;

[0070] 2) Mix silica gel, sodium zirconate, rare earth oxide (praseodymium oxide), modified river mud and organic solvent (acetophenone) in a weight ratio of 100:11:21:40:400, and heat the Disperse for 5h at a frequency of 40MHz, then filter the filter cake to obtain the activated product;

[0071] 3) Silicone (dimethyldiethoxysilane), acrylonitrile-butadiene-styrene copolymer, maleic anhydride, organic solvent (tert-amyl alcohol), carbon fiber, diatomaceous earth, cyclodextrin and The activators are mixed according to the weight ratio of 100:35:55:250:5:23:7:19, and the contact reaction is carried out at 75°C, 1.5MPa and airtight conditions for 6 hours to prepare a high temperature resistant coating for hot blast stoves A2....

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Abstract

The invention discloses a six-surface heat exchange hot-blast stove provided with a back wind baffle plate. The six-surface heat exchange hot-blast stove comprises a hearth and a wind way shell; the wind way shell wraps the hearth to form a cavity between the hearth and the wind way shell; a flue is formed in the cavity for communicating with the hearth; the flue includes a lower smoke running groove, a smoke discharge pipe and an upper smoke running groove; the lower smoke running groove is formed in the bottom of the cavity; the upper smoke running groove is formed in the middle part of the cavity, and is positioned at the top of the hearth; the lower smoke running groove and the upper smoke running groove are communicated through the smoke discharge pipe; multiple wind inlet nets are arranged on the side wall of the wind way shell; the U-shaped back wind baffle plate is arranged between the external of the back side wall of the hearth and the smoke discharge pipe to form a ventilation groove between the back wind baffle plate and the back side wall; and the back wind baffle plate is higher than the hearth. The six-surface heat exchange hot-blast stove has the characteristics of high heat exchange efficiency, high heat exchange temperature and small size.

Description

technical field [0001] The invention relates to a hot blast stove, in particular to a six-sided heat exchange hot blast stove provided with a rear windshield. Background technique [0002] As a thermal power mechanical hot blast stove, it began to be widely used in my country in the late 1970s, and has become a replacement product for electric heat sources and traditional steam power heat sources in many industries. The most basic working principle of the hot blast stove is to pass cold air into the interlayer of the furnace to take the heat out of the interlayer to form hot air, and then heat the object through the hot air. [0003] At present, hot blast stoves can be divided into two types: heat storage type and heat exchange type according to the operating principle. The advantages of the regenerative type are: high heat exchange temperature and high heat utilization rate; the disadvantages are: large volume, large floor area, unstable hot air temperature, many switching...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H3/06F24H9/00F24H9/02F23J1/00
CPCF23J1/00F23J2700/001F24H3/067F24H9/0073F24H9/02
Inventor 萧鲲
Owner WUHU CHANGQI FURNACE