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Energy-saving hot wind circulation tunnel kiln and waste heat recycling method of tunnel kiln

A hot air circulation, tunnel kiln technology, applied in the furnace type, waste heat treatment, lighting and heating equipment, etc., can solve the problems of equipment manufacturing cost, high maintenance cost, poor fluidity of waste heat recycling, low recovery efficiency, etc. Use efficiency, reduce energy consumption and improve product quality

Active Publication Date: 2016-10-12
福建省德化同鑫陶瓷有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The above-mentioned use in tunnel kilns has a certain effect, but its heat energy recovery is limited to the heat cycle in this section, and the fluidity of waste heat recovery is poor, resulting in low recovery efficiency, and the equipment manufacturing cost and maintenance cost are high

Method used

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  • Energy-saving hot wind circulation tunnel kiln and waste heat recycling method of tunnel kiln

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Embodiment Construction

[0029] The present invention will be further described below through specific embodiments.

[0030] refer to Figure 1 to Figure 6 As shown, the energy-saving hot air circulation tunnel kiln includes a foundation 100, a side wall 200, an insulation shell 300, a hot air circulation system 400, a flue gas purification system 500, and a cooling system 600;

[0031] The side wall 200 is arranged on the foundation 100 to enclose the furnace;

[0032] The thermal insulation shell 300 is set outside the foundation 100 and the side wall 200;

[0033] From the inlet to the outlet, the furnace includes a preheating section 1, a smoke exhaust section 2, a firing section 3, a quenching section 4 and a cooling section 5;

[0034] The side walls on both sides of the furnace in the preheating section 1 are mullite slabs 11, preheating passages 12, kiln bricks 13, and insulation layers 14 from the furnace to the insulation shell 300. The preheating passages 12 and insulation layer 14 are cl...

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Abstract

The invention relates to an improved energy-saving and emission reduction technology of a ceramic kiln, in particular to an energy-saving hot wind circulation tunnel kiln and a waste heat recycling method of the tunnel kiln. The energy-saving hot wind circulation tunnel kiln comprises a base, a lateral wall and a heat-preservation shell, is sequentially divided into a preheating section, a smoke exhausting section, a sintering section, a quenching section and a cooling section from an inlet to an outlet of a hearth, and further comprises a hot wind circulation system. The hot wind circulation system comprises a hot wind pipeline and a wind inducing device, wherein the hot wind pipeline enables a heat preservation passage and a cooling passage to communicate with a preheating passage, and the wind inducing device is arranged on the hot wind pipeline and used for introducing hot wind in the heat preservation passage and the cooling passage into the preheating passage. According to the energy-saving hot wind circulation tunnel kiln and the waste heat recycling method of the tunnel kiln, the structure is simple, construction is convenient, and the manufacturing cost is low. A heat circulation system is formed in the kiln, the heat utilization efficiency is improved, energy consumption is reduced, the product quality is improved, and the influence of the kiln on the surroundings is reduced.

Description

technical field [0001] The invention relates to an improvement technology for energy saving and emission reduction of a ceramic kiln, in particular to an energy-saving hot air circulation tunnel kiln and a method for recycling waste heat of the tunnel kiln. Background technique [0002] A large number of tunnel kilns are used in ceramic production for firing. The main body of the existing tunnel kiln generally includes a preheating section, a firing section, and a cooling section. The existing tunnel kiln generally has a large temperature difference between the upper and lower sides of the kiln body and heat loss. Large, large product quality differences and long preheating, roasting, cooling time and other shortcomings. [0003] In order to solve the above problems, a variety of tunnel kilns that utilize the temperature difference between kilns to realize heat energy recycling have been introduced on the market, such as the tunnel kiln disclosed by the application publicati...

Claims

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Application Information

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IPC IPC(8): F27B9/10F27D17/00
CPCF27B9/028F27B9/10F27B9/3005F27D17/004F27D17/008Y02P40/60
Inventor 曾俩相
Owner 福建省德化同鑫陶瓷有限公司
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