CN208872420U - A kind of cam-type oven top of coke oven peephole automatic temperature measurement system - Google Patents

Abstract

The utility model discloses a kind of cam-type oven top of coke oven peephole automatic temperature measurement systems, belong to high temperature detection technique field.It includes peephole lid, connecting rod, non-contact type thermodetector, cam, spacing bayonet lock, guide groove and power mechanism；One end of the connecting rod connects peephole lid, and the other end connects spacing bayonet lock, is equipped with guide groove with spacing bayonet lock, a certain segment frame is located in the circumferential recess of cam among connecting rod；The power mechanism is for driving cam to rotate.The utility model using the movement characteristic of cam can be realized peephole lid automatically open and close and automatic continuous thermometric, the high temperature of infrared radiation thermometer can also be avoided to damage, its service life is greatly extended, has the advantages that simple structure and reasonable design, be easy to build.

Description

A kind of cam-type oven top of coke oven peephole automatic temperature measurement system

Technical field

The utility model belongs to high temperature detection technique field, specifically, being related to a kind of cam-type oven top of coke oven peephole Automatic temperature measurement system.

Background technique

The measurement and control of coke oven furnace temperature is always one of the key link in coking industry, measurement of furnace temperature it is timely, quasi- The height of the quality of coke quality, the length in coking furnace shaft service life and gas consumption is directly influenced whether really.Currently, domestic The method that outer most of coke oven uses artificial thermometric, this method are usually repeated once for every 4 hours, and time-consuming for thermometric, firing ring Border is severe, labor intensity of workers is big, thermometric human error is big, encounter the rainy day then can not thermometric, Control for Kiln Temperature lag is serious, causes Furnace temperature fluctuation is big, and it is low to stabilize coefficient, and in order to guarantee coke quality, frequently with temperature upper limit control method, gas consumption amount is big. Therefore, artificial thermometric is not able to satisfy coke oven automated production and energy-saving and environment-friendly demand already.

And by the consumption of coke oven automatic temperature measurement control system real-time measurement furnace temperature and feedback control coal gas, not only thermometric is quasi- Really, in time, and the flow of coal gas can be adjusted in real time, reduce gas consumption, it meets the energy-saving and environment-friendly requirement in China, is future The inexorable trend of coke oven automation computer heating control.

Currently, the automatic temperature measurement control of coke oven mainly has two major classes method: one kind is the installation S type at the top of coke oven regenerator Thermocouple carries out thermometric, then the temperature of regenerator top is simulated to the temperature of coke oven vertical flame path by mathematical model, thus Carry out the automatic computer heating control of coke oven.Such as Chinese Patent Application No. are as follows: 200620072195.1, publication date are as follows: in April, 2007 Patent document on the 25th discloses a kind of coke furnace fitting fire way temperature measuring device, it is characterized in that vertically boring and crossing over from furnace roof What hole communicated crosses over hole path, herein across vertically arranged thermocouple I in hole path, the through first layer across above hole of depth Brick, the vertically arranged thermocouple II in the peephole in left side, depth is through to rise in flue and is located at the center line across hole, Front and back is to setting thermocouple III in the regenerator top space in left side, in addition, brick gas passage on the left of basement bottom board Colour comparatour thermal detector I is arranged in inlet, and the circle hole shape communicated with the first layer refractory brick on the downside of circulation port is bored in basement bottom board Hole path is recycled, colour comparatour thermal detector II is arranged in the lower end for recycling hole path herein, and the temperature measured is calculated by mathematical model Practical fire path temperature out, and concatenated and controlled by computer-implemented Automatic Optimal, achieve the purpose that continuous temperature measurement, can reduce labour Intensity and energy-saving stable furnace temperature and the quality for improving coke, this method directly measure regenerator top temperature, and investment is small, applies Work is easy for installation, thermocouple long service life, but it needs a large amount of data accumulation to establish accurate mathematical model to simulate, and The temperature of indirectly measurement flue, thermometry difficulty is big, thermometric inaccuracy.

Another kind of method is the temperature directly measured in oven top of coke oven flue by infrared radiation thermometer, have quickly, Efficiently, in accurate response flue many advantages, such as actual temperature, thus extensive research has been obtained.It is special in published China The method and apparatus that infrared measurement of temperature is reported in sharp document, such as Chinese Patent Application No. are as follows: 200410012985.6, publication date A kind of coke oven automatic temperature measurement method and its temp measuring system, temp measuring system packet are disclosed for the patent document on January 12nd, 2015 Include the annular thermometric track being arranged on the inside or outside of coke oven boiler face coal charging car track, the automatic TME with optic probe, Electric brush type communicates head and host computer.Its temp measuring method is that automatic TME is allowed to walk on thermometric track, on temperature measuring equipment Temperature probe actual measurement is scanned to the temperature in furnace by the standard flue thermometer hole being located in thermometric track, automatic survey Collected temperature data is communicated head, the temperature that will be measured by the way that the electric brush type of any above thermometric track is arranged in by warm device Data are transmitted to the host computer on ground by wire communication route, and host computer is obtained by carrying out analytic operation to sampling curve data The temperature of each standard flue and carry out the control of coke oven heating system out.But it is mobile thermometric, due to the hole of flue Lid diameter only has 130mm or so, and the time of mobile thermometric is influenced obvious by movement speed, and infrared radiation thermometer on the move is fixed The inaccuracy of position will directly affect the accuracy of thermometric.For another example: Chinese patent notification number are as follows: the patent document handle of CN2898789Y Infrared radiation thermometer is directly installed on flue, although there is the stripping cooling protection of nitrogen, rising is more than in flue 1300 DEG C of high temperature stove fire often results in the damage of infrared radiation thermometer high temperature, existing it was verified that within 6~12 months time, 50% or more infrared radiation thermometer damage is had more than, it is of a high price.

Through retrieving, there is also the devices using contactless device detection coke oven vertical flame path temperature in the prior art, for example, Chinese patent notification number are as follows: the patent document of CN 2199983Y discloses a kind of travelling automatic temperature measuring device for coke oven flue, will Temperature probe is fixed in steel sleeve, and steel bushing tube end, which installs protection cap additional, protects temperature probe, then is fixed on charging car head Bracket on, and align when coalingging with peephole, by the cam on the stepping motor rotating shaft, join through fork lever and driving lever The open and close for closing control protection cap, to realize coke oven fire path temperature automatic measurement.The device of the invention focuses on protection Temperature probe still realizes that the premise of coke oven vertical flame path automatic temperature measurement is must peephole lid to be automatically opened and be closed, the invention In have no description.Even if there is other equipment that can open peephole lid, the device of the invention must be by producing in practical thermometric Process determines, can only survey 1 hole flue every time, and the thermometric interval time between two hole flues is long, thermometric serial number is discontinuous, Times required for the thermometric of the whole straight trip flues of completion are identical as the coking time of coke oven, about 17~for 24 hours, this is straight to coke oven Whole, real-time, the fast automatic thermometric of trip temperature, and timely feedbacking for coal gas control is unacceptable defect.Citing is such as Under: charging car usually carries out operation of coalingging according to 5-2 or 9-2 string is continuous, and by taking 9-2 string is continuous as an example, charging car coalings sequence successively To fill the 1st, 11,21,31,41,51,61 holes, the 3rd, 13,23,33,43,53,63 holes are successively filled again later, then successively fill the 5th, 15,25,35,45,55,65 hole, then successively fill the 7th, 17,27,37,47,57,67 holes, then successively fill the 9th, 19,29,39,49, 59,69 hole successively carries out coalingging for even number serial number later with same rule.Interval of coalingging (thermometric interval) time in two holes is logical Often it is 7-12min, furthermore cannot coalings during the maintenance of daily 2-4h, it also cannot thermometric.

In view of all of the above, it is evident that there is thermometric position inaccurate, infrared surveys for existing automatic temperature measurement apparatus for coke furnace and system Warm instrument is also easy to produce the shortcomings such as damage, thermometric be discontinuous, limits its extensive use.

Summary of the invention

1. to solve the problems, such as

For existing automatic temperature measurement apparatus for coke furnace and system there is thermometric position inaccurate, temperature measuring device is also easy to produce damage The shortcomings such as bad, thermometric is discontinuous, the problem of limiting its extensive use, the utility model provides a kind of cam-type coke oven furnace Push up peephole automatic temperature measurement system, the utility model using the movement characteristic of cam can be realized peephole lid automatically open and Closing and automatic continuous thermometric, additionally it is possible to avoid the high temperature of infrared radiation thermometer from damaging, greatly extend its service life.

2. technical solution

To solve the above-mentioned problems, technical solution used by the utility model is as follows:

A kind of cam-type oven top of coke oven peephole automatic temperature measurement system, including connecting rod, non-contact type thermodetector, cam, Guide groove and power mechanism；For connecting peephole lid, the other end is flexibly connected with guide groove, described for one end of the connecting rod Cam circumferentially opens up fluted, and a certain segment frame is located in the circumferential recess of cam among connecting rod；The power mechanism is for driving Moving cam rotation, to drive path implementation moving vertically and horizontally of the connecting rod along guide groove.

Preferably, the L-shaped structure of the connecting rod is set including horizontally disposed horizontal segment and along the vertical direction Two sections of the vertical section set；One end of the vertical section of connecting rod is arranged in the peephole lid；One end of connecting rod vertical section is used for Connect peephole lid；One end of connecting rod horizontal segment is flexibly connected with guide groove；The a certain segment frame of the horizontal segment of the connecting rod If being arranged in the groove of cam.

Preferably, the width of the groove on the cam and depth are slightly larger than the diameter of the horizontal segment of the connecting rod, with Enable connecting rod free movement in the groove of cam.

Preferably, the connecting rod is flexibly connected by guide rod with guide groove；One end of guide rod and connecting rod Horizontal segment is vertical in the horizontal direction, and the other end of guide rod passes through guide groove and connect with spacing bayonet lock.

Preferably, the cam contour is made of the semicircle of coaxial line with semiellipse.

Preferably, the guiding slot cross-section is collectively constituted by the straightway of lower part and the curved section on top, guide groove curve The floor projection length of section is greater than the diameter of peephole lid.

Preferably, the power mechanism includes driven wheel, camshaft, power wheel and decelerating motor；The power wheel with The output axis connection of decelerating motor；The driven wheel and cam is arranged on camshaft, and the driven wheel is nibbled with power wheel It closes.

Preferably, the temp measuring system can use one group of power mechanism, common cam shaft, according to the position of peephole Continuous arrangement or interval arrangement multiple groups.

Preferably, the non-contact type thermodetector is infrared radiation thermometer, and the infrared radiation thermometer is high apart from peephole lid Degree is 400-800mm, and the probe of the infrared radiation thermometer and the peephole lid are located at same axle center.

A kind of cam-type oven top of coke oven peephole automatic temperature measurement method, comprising the following steps:

Step 1: power mechanism drives cam rotation, and cam jacks up connecting rod and moves along the straightway of guide groove, drives Peephole lid vertical-lift, the lower part of peephole lid are higher by oven top of coke oven；

Step 2: power mechanism driving cam continues to rotate, and continues jack-up connecting rod and moves along the curved section of guide groove, Driving peephole lid, upper direction, peephole lid are driven to the upper right side of peephole to the right, expose entire peephole；

Step 3: non-contact type thermodetector carries out thermometric, and data are exported to data processing centre；

Step 4: power mechanism driving cam continues to rotate, and connecting rod declines under self gravitation effect, drives peephole Moved beneath, peephole lid move to right above peephole lid to the left；

Step 5: power mechanism driving cam continues to rotate, and the guide rod 11 welded together with connecting rod 2 is along guide groove 13 straightway decline, drives peephole lid vertically to decline, and peephole lid resets, and completes a thermometric.

3. beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model cam-type oven top of coke oven peephole automatic temperature measurement system is real using the unique features of cam movement Automatic lifting, the opening, decline, closing of flue peephole lid are showed, system composition is simple and efficient, and operation is accurate and reliable, benefit Automatic continuous temperature promptly and accurately is carried out to the peephole after opening with the infrared radiation thermometer being installed on right above peephole to survey Amount can be avoided the rising flare in flue more than 1300 DEG C and cause high temperature to damage infrared radiation thermometer, greatly extends Its service life provides a kind of new technology for coke oven automatic temperature measurement control field；

(2) extent of horizontal projection of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system guide groove curved section The diameter that degree is greater than peephole lid is fully exposed to peephole under the probe of non-contact type thermodetector, keeps thermometric more accurate；

(3) the utility model cam-type oven top of coke oven peephole automatic temperature measurement system structure is simple, and design rationally, is easy to build It makes.

Detailed description of the invention

Fig. 1 is the main view of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system；

Fig. 2 is the vertical view of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system；

Fig. 3 is the structure of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system peephole lid opening process Schematic diagram；

Fig. 4 is the structure of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system peephole lid closing process Schematic diagram；

Fig. 5 is the axonometric drawing of the utility model cam-type oven top of coke oven peephole automatic temperature measurement system.

In figure: 1, peephole lid；2, connecting rod；3, infrared radiation thermometer bracket；4, infrared radiation thermometer；5, camshaft stand； 6, driven wheel；7, camshaft；8, cam；9, power wheel；10, it is oriented to board mount；11, guide rod；12, spacing bayonet lock；13, it is oriented to Slot；14, guide plate；15, decelerating motor.

Specific embodiment

The utility model is further described below combined with specific embodiments below.

Embodiment 1

As depicted in figs. 1 and 2, a kind of cam-type oven top of coke oven peephole automatic temperature measurement system, including peephole lid 1, company Extension bar 2, infrared radiation thermometer bracket 3, non-contact type thermodetector 4, cam 8, guiding board mount 10, spacing bayonet lock 12, guide groove 13, Guide plate 14 and power mechanism.

The L-shaped structure of connecting rod 2, the vertical section being arranged including horizontally disposed horizontal segment and along the vertical direction Two sections；Peephole lid 1 is welded on one end of the vertical section of connecting rod 2；The one of the horizontal segment of connecting rod 2 is arranged in spacing bayonet lock 12 End；And a certain segment frame of the horizontal segment of connecting rod 2 is located in the circumferential recess of cam 8.Wherein, the depth of 8 circumferential recess of cam Degree is slightly larger than the diameter of 2 horizontal segment of connecting rod with width, and difference preferred 0.5-2mm uses 1mm in the present embodiment, makes connecting rod 2 In the groove of cam 8 can freely, stable motion, and 8 profile of cam is made of the semicircle of coaxial line with semiellipse.

Infrared radiation thermometer 4 is arranged on infrared radiation thermometer bracket 3, and probe is located at same axle center, distance with peephole lid 1 1 height of peephole lid is 400-800mm, selects 400mm in the present embodiment, will not both have been hindered in this altitude range charging car or Dedusting car work, and can guarantee that thermometric is accurate.

Guide groove 13 is provided on guide plate 14, is cooperated with spacing bayonet lock 12, straightway and top of the section by lower part Curved section collectively constitute, and the floor projection length of curved section be greater than peephole lid 1 diameter, so that peephole can be abundant It is exposed, the temperature of coke oven vertical flame path is measured convenient for infrared radiation thermometer 4.

Power mechanism is for driving the rotation of cam 8, including driven wheel 6, camshaft 7, power wheel 9 and decelerating motor 15；Its In, the output axis connection of power wheel 9 and decelerating motor 15；Driven wheel 6 and cam 8 are arranged on camshaft 7, driven wheel 6 and dynamic Wheels 9 engages.

System can use one group of power mechanism, and common cam shaft 7 is continuously arranged or interval cloth according to the position of peephole Multiple groups are set, thermometric is carried out simultaneously to multiple peepholes.

Under above-mentioned oven top of coke oven peephole automatic temperature measurement system original state, the symmetry axis of cam 8 is located at horizontal direction, and The semicircle side of cam 8 is close to the vertical section of connecting rod 2, and as shown in A condition in Fig. 3, starting decelerating motor 13 starts thermometric, and one Secondary thermometric process the following steps are included:

Step 1: decelerating motor 15 drives power wheel 9 to rotate clockwise, and is engaged by gear and drives driven wheel 6 counterclockwise Rotation, camshaft 7 and cam 8 rotate counterclockwise therewith, and cam 8 jacks up connecting rod 2 at this time, and the horizontal segment of connecting rod 2 is along guiding The straightway of slot 13 rises, and peephole lid 1 vertically rises, when spacing bayonet lock 12 moves up to 13 straightway of guide groove When with the junction of curved section, peephole lid 1 is promoted to the surface of peephole, and the lowest part height for just looking at fire hole cover 1 discharges of the coke Furnace furnace roof, peephole lid 1 is promoted to open and be finished, as shown in B state in Fig. 3；

Step 2: cam 8 continues to rotate counterclockwise, and continues to jack up connecting rod 2,2 horizontal segment of connecting rod is along guide groove 13 Curved section upper direction to the right, the upper direction to the right of peephole lid 1, as shown in C-state in Fig. 3, when the oval side of cam 8 When most marginal point is rotated counterclockwise to highest point, spacing bayonet lock 12 to the right upper direction to 13 curved section of guide groove least significant end, At this point, peephole lid 1 is driven to the upper right side of peephole, peephole lid 1 is finished to upper right side movement, entire peephole dew Out, as shown in D-state in Fig. 3；

Step 3: infrared radiation thermometer 4 carries out thermometric, and data are exported to data processing centre；

Step 4: cam 8 continues to rotate counterclockwise, and connecting rod 2 declines under the effect of gravity, the horizontal segment edge of connecting rod 2 The curved section of guide groove 13 moved beneath to the left, moved beneath works as limiting card as shown in E-state in Fig. 4 to peephole lid 1 to the left Pin 12 is when lower section moves to the junction of 13 straightway of guide groove and curved section to the left, peephole lid 1 move to peephole just on Side, as shown in F state in Fig. 4, moved beneath finishes peephole lid 1 to the left；

Step 5: cam 8 continues to rotate counterclockwise, and the horizontal segment of connecting rod 2 declines along the straightway of guide groove 13, sees fire Port lid 1 vertically declines, and when spacing bayonet lock 12 moves downwardly to the bottommost of 13 straightway of guide groove, peephole lid 1 has resetted Finish, as shown in G state in Fig. 4；Cam 8 continues to rotate counterclockwise, until reaching original state as shown in A in fig. 3, slow down electricity The power-off of machine 15 is closed.

It repeats the above steps one to five, automatic continuous thermometric can be realized.

Above-mentioned cam-type oven top of coke oven peephole automatic temperature measurement system realizes vertical fire using the unique features that cam moves The automatic lifting of road peephole lid 1, opening, decline, closing, and fought each other using the infrared radiation thermometer being installed on right above peephole Peephole after opening carries out automatic continuous temperature measurement promptly and accurately, can be avoided in flue on more than 1300 DEG C and fires Seedling causes high temperature to damage infrared radiation thermometer, greatly extends its service life, provides for coke oven automatic temperature measurement control field A kind of new technology.

Embodiment 2

The present embodiment and the structure of embodiment 1 are essentially identical, and distinctive points are: the depth and width of 8 circumferential recess of cam Diameter than 2 horizontal segment of connecting rod is 3mm big, and the probe of infrared radiation thermometer 4 is 800mm apart from 1 height of peephole lid.In addition, connection Bar 2 is flexibly connected by guide rod 11 with guide groove 13；The horizontal segment of one end of guide rod 11 and connecting rod 2 is in the horizontal direction Vertically, the other end of guide rod 11 passes through guide groove 13 and connect with spacing bayonet lock 12.

Claims (9)

1. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system, it is characterised in that: including connecting rod (2), contactless Temperature measurer, cam (8), guide groove (13) and power mechanism；

For connecting peephole lid (1), the other end is flexibly connected with guide groove (13), described convex for one end of the connecting rod (2) Wheel (8) circumferentially opens up fluted, and the intermediate a certain segment frame of connecting rod (2) is located in the circumferential recess of cam (8)；The power mechanism For drive cam (8) rotate, thus drive connecting rod (2) along guide groove (13) path implementation vertically and horizontally Movement.

2. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 1, it is characterised in that: described Connecting rod (2) L-shaped structure, two sections of vertical section be arranged including horizontally disposed horizontal segment and along the vertical direction； One end of connecting rod (2) vertical section is for connecting peephole lid (1)；One end and guide groove (13) of connecting rod (2) horizontal segment are living Dynamic connection；The a certain segment frame of the horizontal segment of the connecting rod (2) is located in the groove of cam (8).

3. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 2, it is characterised in that: described The width and depth of groove on cam (8) are slightly larger than the diameter of the horizontal segment of the connecting rod (2), so that connecting rod (2) energy Enough free movements in the groove of cam (8).

4. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 2, it is characterised in that: described Connecting rod (2) be flexibly connected with guide groove (13) by guide rod (11)；One end of guide rod (11) and the water of connecting rod (2) Flat section is vertical in the horizontal direction, and the other end of guide rod (11) passes through guide groove (13) and connect with spacing bayonet lock (12).

5. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 4, it is characterised in that: described Cam (8) profile be made of the semicircle of coaxial line with semiellipse.

6. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 5, it is characterised in that: described Guide groove (13) is collectively constituted by the straightway of lower part and the curved section on top, the floor projection length of guide groove (13) curved section Greater than the diameter of peephole lid (1).

7. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 6, it is characterised in that: described Power mechanism include driven wheel (6), camshaft (7), power wheel (9) and decelerating motor (15)；The power wheel (9) and deceleration The output axis connection of motor (15)；The driven wheel (6) and cam (8) is arranged on camshaft (7), the driven wheel (6) it is engaged with power wheel (9).

8. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 7, it is characterised in that: described Temp measuring system can use one group of power mechanism, common cam shaft (7) is continuously arranged or interval cloth according to the position of peephole Set multiple groups.

9. a kind of cam-type oven top of coke oven peephole automatic temperature measurement system according to claim 1-8, feature Be: the non-contact type thermodetector is infrared radiation thermometer (4), and the infrared radiation thermometer (4) is highly apart from peephole lid (1) 400-800mm, and the probe of the infrared radiation thermometer (4) and the peephole lid (1) are located at same axle center.