CN2199983Y

CN2199983Y - Travelling automatic temp. measuring device for coke oven flue

Info

Publication number: CN2199983Y
Application number: CN 94216413
Authority: CN
Inventors: 鲍立威; 何敏; 申志强
Original assignee: 鲍立威
Priority date: 1994-06-30
Filing date: 1994-06-30
Publication date: 1995-06-07
Anticipated expiration: 2004-06-30

Abstract

The utility model relates to a traveling automatic temperature measuring device for a coke oven flue. A temperature measuring probe is arranged and fixed in a steel sleeve pipe, and the end part of the steel sleeve pipe is provided with a protective cover and is fixed on a bracket which is arranged at the head part of a charging car. When the coal is charged, the protective cover is aligned to a fire hole. The operation of the protective cover is controlled by a cam which is arranged on the rotating shaft of a step motor through a cross lever and a driving lever. The probe receives the signal, and the signal is sent to a computer monitor system by a conditioning circuit through an amplifying circuit, a wireless receiver and a wireless transmitter, a microprocessor, and therefore, the automatic measurement of the temperature for the flue of the coke oven can be realized. The utility model has the advantages of the maintenance is easy, the production cost can be saved, the real-time monitoring requirement can be met, and the accuracy of metrical data can be improved.

Description

Travelling automatic temp. measuring device for coke oven flue

The utility model relates to the employing temperature sensor coke oven fire path is carried out non-contacting automatic temperature measurement device.

In the background technology field, the measurement of coke oven fire path temperature is a ten minutes stubborn problem during coking is produced.The coke oven temp measuring method has following several at present: a kind of is that this temp measuring method not only labour intensity is big, and data accuracy is poor, can't satisfy the requirement that the coke oven production process is measured and controlled automatically automatically by the artificial hyperthermia radiation instrumentation temperature of using.Another kind is to adopt to carry out the direct measurement of fire path temperature in the mode of the pre-buried thermopair of quirk wall, though this method can directly be measured fire path temperature, thermopair very easily damages.Also having a kind of method is to assign thermopair at the regenerator top, is the temperature estimation fire path temperature at regenerator top by what record, though this method can obtain fire path temperature indirectly, the maintenance cost of thermopair is very high; Also have such as assign the flexible thermal galvanic couple from furnace bottom, estimate methods such as fire path temperature again to bridge of the nose brick thermometric.The problem that these methods exist is that great majority can not directly record fire path temperature, and makes maintenance cost very high owing to thermopair quantity, makes troubles to coking production.Therefore, realize that directly measuring automatically of coke oven fire path temperature is that the utmost point need to wait the big problem that solves during coking was produced.

The purpose of this utility model is: a kind of coke oven fire path self-operated measuring unit that is installed on the coal charger is provided, adopts contactless device can measure the temperature of coke oven fire path.

The technical solution of the utility model is: it comprises that two parts are sensing temperature-measuring part and control protective cover action component.The sensing temperature-measuring part is temperature probe to be contained in the Steel Sleeve fix, and probe is connected with the amplification change-over circuit with lead, and the Steel Sleeve end installs protective cover additional, and whole parts are fixed on the shelf of coal charger head.Control protective cover action component is in the stepper-motor rotating shaft cam to be housed, and moving bar of fork and driving lever are hinged, and moving bar one end of fork is fixedlyed connected with protective cover, and the other end contacts with cam; Driving lever one end touches through spring and protective cover bottom connection, and the drag strut that the other end has on guiding keyway and the cam flexibly connects.When coalingging, the coal hopper of coal charger and the hole contraposition of coalingging, at this moment be installed in sensing temperature-measuring part contraposition on the coal charger on the fire channel of corresponding sequence number, its probe receives signal by amplifying change-over circuit, by microprocessor control, launches through transmitting set, in the watch-keeping cubicle, signal is received by wirelessreceiver, is sent to computer supervisory control system through signal conditioning circuit, thereby realizes the automatic measurement of coke oven fire path temperature.

The utility model is compared with background technology, and the useful effect that has is: because the sensing temperature-measuring part is to be fixed on the coal charger, for ease of maintenaince, save productive expense greatly, can satisfy real-time monitoring requirement, improve the accuracy of take off data.

Below in conjunction with accompanying drawing,, provide details of the present utility model by description to embodiment.

Fig. 1, scheme of installation of the present utility model;

Fig. 2, structural representation of the present utility model.

As shown in Figure 1, coaling hole 7 and quirk peephole 3 that the space is arranged in top of coke oven 4, distance between them all is certain, coal charger 1 is coaling in coking chamber 6 according to coke pushing string preface, when coalingging by designated time intervals, the coaling funnel 8 and hole 7 contrapositions of coalingging of coal charger 1, required time of coalingging was about about 1 minute, at this moment was installed in peephole 3 contrapositions of noncontact sensing temperature-measuring part 2 and quirk 5 on the coal car, just can record the fire path temperature of corresponding sequence number.

As shown in Figure 2; sensing temperature-measuring part 2; temperature sensor adopts the holographic infrared color comparison temperature measurement element of dichromated gelatin (being the DCGHOE probe) 10 to be contained in the Steel Sleeve 9; with internal fixing 11 location; protective sleeve 9 ends install protective cover 13 additional; whole parts are fixed on the fixed support 12 of coal charger 1 head; probe 10 usefulness leads are by amplifying change-over circuit; by microprocessor control (can by micro-chip etc. constitute); launch through transmitting set; in the watch-keeping cubicle, signal is received by wireless receiver, is sent to computer supervisory control system through signal conditioning circuit.Its working process is: when opening the hole 7 big lids of coalingging, open the lid of corresponding sequence number quirk peephole, after the coaling funnel 8 and hole 7 contrapositions of coalingging of coal charger 1 by furnace roof 4, press down the button of coalingging, begin to coaling, this control signal of coalingging is drawn, be used to control the action of temperature measuring mechanism.The width between centers of Steel Sleeve 9 and the funnel 8 of coalingging equal the to coaling odd-multiple of hole 7 and peephole 3 width between centers, like this after coaling funnel 8 and hole 7 contrapositions of coalingging, probe 10 and peephole 3 contrapositions.In order to protect probe 10, need to give Steel Sleeve one end to install protective cover 13 additional, protective cover is opened when thermometric automatically, promptly closes automatically behind the thermometric.

As shown in Figure 2, control protective cover action component is that cam 18 is housed in the stepper-motor rotating shaft, and the moving bar 15 of fork is hinged with driving lever 16, and moving bar 15 1 ends of fork are fixedlyed connected with protective cover 13, and the other end contacts with cam 18; Driving lever 16 1 ends touch through spring 14 and protective cover 13 bottom connections, and drag strut 17 orbital heads that the other end has on guiding keyway 19 and the cam 18 flexibly connect.Moving bar 15 of fork and driving lever 16 all can move along dead sheave separately.The rotation of cam 18 is driven by stepper-motor; stepper-motor is controlled by above-mentioned microprocessor; the signal of coalingging of drawing send microprocessor; start stepper-motor; when cam changes 90 °; spring 14 between moving bar of fork and the driving lever is compressed; protective cover 13 moves down; the Steel Sleeve 9 that breaks away from probe, the orbital head of drag strut 17 arrives the b position simultaneously, during cam 18 Rotate 180s °; the orbital head of drag strut 17 drags driving lever 16 and the moving bar 15 of fork and protective cover 13 and arrives the c position together; at this moment the cam contact of the moving bar 15 of fork has left cam, and when cam changeed 270 °, the orbital head of drag strut 17 was got back to a position of driving lever 16; when cam changes 360 °; drag strut 17 drags driving lever 16 and the moving bar 15 of fork resets, and the cam discharging pallet moves the cam contact of bar simultaneously, and protective cover 13 resets.In this process, the signal of coalingging is used to start stepper-motor, and stepper-motor rotates 180 ° under the microprocessor control, the tasks interrupt of microprocessor control step motor rotation at this moment, start measurement signal and handle and the transmission task, after the signal that stops to coaling is sent here, interrupt the processing and the transmission task of temperature measurement signal, the starter motor control signal, the control step motor makes cam forward 360 ° to, interrupts the rotation task, continues to send not send the temperature measurement data that finishes as yet, transmission finishes, and enters waiting status.

Claims

A kind of portable coke oven fire path automatic temperature measurement device is characterized in that it comprises two parts:

1) sensing temperature-measuring part [2]: temperature probe [10] is contained in the Steel Sleeve [9] fixing, probe [10] is connected with the amplification change-over circuit with lead, and Steel Sleeve [9] end installs protective cover [13] additional, and whole parts are fixed on the fixed support [12] of coal charger [1] head;
2) control protective cover action component: cam [18] is housed in the stepper-motor rotating shaft, and the moving bar [15] of fork is hinged with driving lever [16], and moving bar [15] one ends of fork are fixedlyed connected with protective cover [13], and the other end contacts with cam [18]; Driving lever [16] one ends touch through spring [14] and protective cover [13] bottom connection, and the drag strut [17] that the other end has on guiding keyway [19] and the cam [18] flexibly connects.