Tunnel kiln brick-making method
A tunnel kiln, brick and tile technology, applied in the direction of process efficiency improvement, waste heat treatment, lighting and heating equipment, etc., can solve the problems of environmental thermal pollution, thermal energy waste, polluted air, etc.
Active Publication Date: 2015-01-14
DALIAN UNIV OF TECH
View PDF11 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The flue gas contains pyrolysis gas, volatile gas, alkanes, etc., which seriously pollutes the air and reduces the air quality. At the same time, the flue gas contains a large amount of heat energy, and the direct discharge will increase the temperature of the surrounding environment and cause waste of heat energy.
Similarly, the heat energy in the large amount of hot air discharged from the cooling section has not been utilized, causing a large amount of thermal pollution to the environment
[0003] At present, the treatment method of tunnel kiln flue gas mostly adopts spraying method with high energy consumption and large resistance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0017] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.
[0018] A kind of tunnel kiln brick making method provided by the invention, such as figure 1 As shown: the tunnel kiln includes a preheating section 6, a firing section 12, a cooling section 19, a fuel and combustion-supporting delivery system, a temperature control system, a heat exchange system, and a smoke exhaust system.
[0019] The kiln car enters the preheating section 6 from the kiln car entrance 1 . The normal temperature air enters from the normal temperature air inlet 23 and is heated by the heat exchanger 27 to become preheated air. The preheating air is sent into the preheating section 6 through the preheating air inlet 4, and runs opposite to the kiln car, gradually heating the bricks and adobes on the kiln car. The preheated air is used as combustion-supporting air after heat exchange with brick and adobe. The organic matters in the br...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a tunnel kiln brick-making method. A tunnel kiln comprises a preheating section, a sintering section, a cooling section, a fuel and combustion-assisting air conveying system, a temperature control system, a heat exchange system and a smoke discharging system. The tunnel kiln brick-making method includes that a mixture of smoke containing polluting gas like pyrolytic gas, volatile gas gas and alkane generated by the preheating section and combustion-assisting air is fed into the sintering section to be mixed with fuel for mixed combustion, wherein the polluting gas is fully oxidized and finally generate carbon dioxide, water and the like along with combustion smoke to be cooled through a heat exchanger and then discharged. Hot air generated by the cooling section directly enters the preheating section to serve as preheated air, or the hot air generated by the cooling section together with normal-temperature air is heated through the heat exchanger to be preheated air so as to achieve the objective of waste heat recycling. By the tunnel kiln brick-making method, energy utilization rate of the tunnel kiln in the prior art is increased further, pollution, to surrounding environment, of discharged smoke is reduced, and effect of energy conservation and emission reduction is realized.
Description
technical field [0001] The invention relates to a method for making bricks in a tunnel kiln, specifically referring to the treatment of low-molecular compounds formed by the thermal decomposition of organic matter in bricks and adobes and the recovery of waste heat from the flue gas generated in the firing section and the hot air generated in the cooling section. method of use. Background technique [0002] A large number of tunnel kilns are used in the production of bricks and tiles for firing. The main body of existing tunnel kilns generally includes a preheating section, a firing section, and a cooling section (quick cooling section, slow cooling section, and fast cooling section). During the firing process, smoke needs to be exhausted in time. However, in the existing technology, the flue gas is directly discharged into the atmosphere through the smoke outlet, the branch flue, the main flue, and the chimney of the preheating section. The flue gas contains pyrolysis gas...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F27B9/12F27D17/00
CPCY02P10/25Y02P40/60
Inventor 李爱民高宁博张雷
Owner DALIAN UNIV OF TECH