A kind of device of measuring the sintering machine wind box gas temperature
The utility model relates to a kind of checkout gear for sintering machine wind box, arm and other regional gas temperature, belongs to sintering machine temperature measurement equipment technical field.
SINTERING PRODUCTION is very important operation together in the Ferrous Metallurgy.In order to control preferably the carrying out of sintering process, produce high-quality sintering deposit, must detect the state that sintering process is carried out, the most frequently used sintering process state variation situation detection method is the EGT determining method, also has other such as detection methods such as exhaust gas constituents determining methods.Detect about the sintering machine wind box EGT both at home and abroad at present and mainly contain dual mode:
(1) single thermocouple temperature measurement degree is inserted in the bellows side:
This method is two survey the inserting single thermocouple and carry out temperature detection and understand the sintering process state variation of bellows under sintering machine.This technology temperature detecting point owing to its setting in detecting sintering machine wind box EGT process is few, and the basal area of pallet is larger, causing detecting the corresponding precision of data reduces, be difficult to reflect the accurate variation of sintering process temperature, secondly because often having to come off in process of production, the pallet grid section damages the phenomenon generation, causing having compound or sintering deposit to enter in the bellows under the suction pressure effect damages thermocouple, therefore must often change thermocouple and reach the purpose that sintering process detects control, the frequent of thermocouple has increased the enterprise production and management cost;
(2) branched thermocouple temperature measurement is inserted in the bellows side:
This method is to carry out temperature detection at the different many groups thermocouple of the both sides of sintering machine wind box insertion length to understand the sintering process state.Although this technology temperature survey dot density in the sintered discharge gas temperature detection has reached requirement, but because a plurality of test points are not in same horizontal section, the position is fixing, and because the equal factor of bellows air leak rate of air curtain causes the real change situation that detected temperatures can not the reaction-sintered process status.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly measures accurately, the device of not fragile, the mensuration sintering machine wind box gas temperature that do not affect production.
The technical scheme that solves the problems of the technologies described above is:
A kind of device of measuring the sintering machine wind box gas temperature, it is comprised of steel pipe, thermocouple, the one end sealing of steel pipe, the other end is installed binding post, and a plurality of instrument connections are arranged on the steel pipe walls, instrument connection is along the steel pipe axially-aligned, a plurality of thermocouples are placed in the steel pipe, and corresponding with instrument connection respectively, the test lead of thermocouple passes from instrument connection, a plurality of thermocouples are in parallel, and steel pipe is placed in the bogie grates below at bellows top.
In the 100-500mm scope, the opening direction of instrument connection is over against the pallet bottom surface under bogie grates for the device of said determination sintering machine wind box gas temperature, described steel pipe, and the steel pipe level is installed, or tilts to install.
The device of said determination sintering machine wind box gas temperature, the instrument connection of described steel pipe and the quantity of thermocouple are 4-10.
Useful result of the present utility model is:
The utility model is connected in parallel the thermocouple of many different lengths and pierces in the steel pipe, steel pipe is placed in the bellows top, the bogie grates below, can record the mean temperature of bellows waste gas by the thermocouple that adopts parallel way to connect, and single thermocouple damages measuring process and certainty of measurement impact little, while is with the close chassis in the penstock installation position of thermocouple and be in chassis downstream incipient stability zone, such installation site is conducive to accurately understand the sintering process state variation, according to the real time data that detects, can provide safeguard for the safe and stable operation of SINTERING PRODUCTION and other needs.Accuracy and reliability that the utility model is simple in structure, easy to operate, can increase substantially test result.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the thermocouple wiring schematic diagram;
Fig. 3 is installation site of the present utility model schematic diagram.
Mark is as follows among the figure: binding post 1, steel pipe 2, thermocouple 3, instrument connection 4, sinter bed 5, pallet bottom 6, bellows 7.
The specific embodiment
The utility model is comprised of steel pipe 2 and thermocouple 3.
Show among the figure, the end sealing of steel pipe 2, the other end is installed binding post 1, a plurality of instrument connections 4 are arranged on the steel pipe walls, and instrument connection 4 is along steel pipe 2 axially-aligned, and instrument connection 4 according to actual needs, the mode that adopts non-homogeneous perforate to distribute arranges, and the opening direction of instrument connection 4 is over against the pallet bottom surface.The effect that good protection detects thermocouple 3 has been played in the use of steel pipe 2, has reduced the loss of detector unit, and steel pipe 2 can level be installed simultaneously, also can install by certain angle, and the position of temperature detecting point can be adjusted according to physical condition.
A plurality of thermocouples 3 are placed in the steel pipe 2, and are corresponding with instrument connection 4 respectively, and the instrument connection 4 of steel pipe 2 and the quantity of thermocouple 3 are 4-10.The test lead of thermocouple 3 passes from instrument connection 4, and a plurality of thermocouples 3 are in parallel, and is connected with computer data processing system with data collecting system by compensating wire again, carries out collection and the analysis of waste gas mean temperature in the bellows.The parallel way of thermocouple 3 can be measured the mean temperature of this bellows waste gas, because measuring point is many, measurement data has more representativeness, thereby improves precision and the degree of accuracy that the bellows EGT is measured, for the variation of understanding temperature field of sintering and the change of sintering operation system provide accurate foundation.The mode that is connected in parallel in addition even there be a certain thermocouple 3 bad, does not affect the work of other thermocouple 3, can improve service time, reduces consuming.
Show among the figure, steel pipe 2 is placed in the bogie grates below at bellows 7 tops, steel pipe is under bogie grates in the 100-500mm scope, the penstock installation position is near chassis and be in chassis downstream incipient stability zone, can avoid like this leaking out and the fluctuation of waste gas flow velocity brings impact to temperature survey, be conducive to accurately understand the sintering process state variation, according to the real time data that detects, can provide safeguard for the safe and stable operation of SINTERING PRODUCTION and other needs.