An air tightness detection method for a sinter furnace cooling waste heat recovery system
A waste heat recovery system and air tightness detection technology, which can be used in the use of liquid/vacuum for liquid tightness measurement, by detecting the appearance of fluid at the leak point, etc., which can solve the problem of time-consuming and achieve less time-consuming and reliable. High performance and efficiency
Active Publication Date: 2015-11-18
CITIC HEAVY INDUSTRIES CO LTD +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It requires a lot of manpower, material and financial resources, and takes a long time
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
[0016] As shown in the figure, a method for detecting air tightness of a sinter furnace cooling waste heat recovery system includes the following steps:
[0017] 1) Close all valves, release holes, gas supply holes, and observation holes of the gas circulation system, and block all natural leakage points, and open the flap mechanism 15 at the entrance of the furnace top;
[0018] 2) Start the blower 14, and start the induced draft fan 13 in reverse at the same time, adjust the opening degree of the flap mechanism 15, observe the pressure gauge reading of the cooling furnace 1 itself, and keep the pressure in the whole system within the range of 3000-4000kpa;
[0019] 3) Spray foaming agent on all welds and flange connections to detect leakage points, and mark the leakage points after detection;
[0020] 4) Shut down the blower 14 and the induced draft fan 13, and process all the leakage points detected in step 3);
[0021] 5) After dealing with all leak points according to st...
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
Provided is an air tightness detecting method for a sinter boiler type cooling waste heat recovery system. All the other possible air leakage points are closed and blocked except for a furnace mouth plate turnover mechanism, an air blower is started, meanwhile an induced draft fan is started in a reversing mode, the opening degree of a turnover plate is adjusted, so that pressure in the whole system is kept in a ranged of 3000-4000kpa. Foaming agent is sprayed on the connection points of all welding joints and flanges, all leakage points are found, marked and treated in a unifying mode, and after all the leakage points are treated, detection is carried out through the method till no leakage point exists. The air tightness detecting method for the sinter boiler type cooling waste heat recovery system fully utilizes system characteristics and the devices, and the air leakage points are fast and conveniently found with other devices not required to be added. The air tightness detecting method is simple to operate, small in time consumption and high in reliability.
Description
technical field [0001] The invention relates to the field of sintering waste heat utilization, in particular to an air tightness detection method for a sinter furnace cooling waste heat recovery system. Background technique [0002] The sinter furnace cooling waste heat recovery system includes a gas circulation system consisting of a cooling furnace, a boiler, a primary dust collector, a secondary dust collector, a blower, an induced draft fan and a circulating gas pipeline. In the state of production and operation, since the sintered ore is fed continuously, and there is a slight negative pressure space in the material receiving area of the furnace mouth, the flap mechanism of the furnace top feed port is always open. , bleed valve, etc. are sometimes open, and the rest should be a closed space. Therefore, the system air tightness test must be carried out before the furnace cooling sinter project is completed and put into use. [0003] Due to the large volume and irreg...
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 Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/12G01M3/14
Inventor 程波彭岩郭存红张明灿李建强袁广收刘志广刘正魁
Owner CITIC HEAVY INDUSTRIES CO LTD