CN205115369U - Coke oven waste gas switch safety inspection device - Google Patents
Coke oven waste gas switch safety inspection device Download PDFInfo
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- CN205115369U CN205115369U CN201520854510.5U CN201520854510U CN205115369U CN 205115369 U CN205115369 U CN 205115369U CN 201520854510 U CN201520854510 U CN 201520854510U CN 205115369 U CN205115369 U CN 205115369U
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Abstract
The utility model provides a coke oven waste gas switch safety inspection device. The utility model discloses a backbone strip status monitoring device, follow chain status monitoring device and chain protection controlling means, backbone strip status monitoring device contain and install respectively at the machine side of coke oven waste gas switch 4 detection switchs with burnt side, from chain chain rupture detection device including install respectively the machine side of coke oven waste gas switch and burnt side head end lean on the hydro -cylinder position 4 laser rangefinder, install in the machine side of coke oven waste gas switch and burnt side both sides terminally apart from the appearance baffle, install vertical baffle on every air intlet board, chain protection controlling means be PLC electrical control equipment. The utility model discloses operating condition that not only can real -time supervision waste gas switch can carry out chain protection according to the abnormal conditions that the waste gas switch appears moreover, avoids the emergence of coke oven production accident.
Description
technical field:
The utility model relates to a kind of coke oven exhaust gas exchange board safety detection device, belongs to technical field of electric control.
background technology:
Coke oven exchange board is a kind of equipment carrying out coal gas reversing combustion.No matter be with coke-oven gas or blast furnace gas, coke oven exhaust gas exchange board will participate in the heating procedure of coke oven all the time, and its structure iron as shown in Figure 1.Coke-oven gas is used with coke oven heating, it is example that coke oven exchange board is initially in forward position, now waste gas oil cylinder and coke-oven gas oil cylinder are all in forward position, waste gas exchange board oil cylinder 1 drives tie rod to move by chain 2 and bend wheel 5, and tie rod controls the position of air intlet plate 3 and 4 again by chain.Be in open mode at pusher side odd bits air intlet plate, even bit air intlet plate is in closing condition, and coke side odd bits air intlet plate is in closing condition, and even bit air intlet plate is in open mode.When coke oven exchange board carries out back exchange, namely the switching of coke oven odd number combustion chamber and even number exhaust air chamber is realized, now coke-oven gas oil cylinder is moved to mid-way by forward position, realize the shutoff of coke oven odd number combustion chamber coal gas, then waste gas oil cylinder is moved to mid-way by forward position, realize the shutoff of coke oven odd number combustion air, waste gas oil cylinder is continued to move to reverse position by mid-way, realize the conducting of coke oven even number combustion air, then coke-oven gas oil cylinder is moved to position, direction by mid-way, realizes the conducting of coke oven even number combustion chamber coal gas.In waste gas oil cylinder back exchange process, drive tie rod 7 to move by chain 2 and bend wheel 5, tie rod 7 controls the opening and closing of air intlet plate again by chain.Closing condition is become from open mode at pusher side odd bits air intlet plate, even bit air intlet plate becomes open mode from closing condition, coke side odd bits air intlet plate becomes open mode from closing condition, and even bit air intlet plate becomes closing condition from open mode.In the distraction procedure of waste gas oil cylinder chain and tie rod, very easily there is chain rupture in the chain that intensity is lower, if the main chain connecting oil cylinder and tie rod ruptures, cannot open and close causing whole air inlet plates of side, if connect tie rod and air intlet plate from chain breakage, this air inlet plate will be caused to open and close.Because waste gas exchange board role is crucial; under waste gas exchange board proofing unit shortage and the incomplete situation of interlock protection measure; gas switch still carries out the break-make of coal gas according to setting process; above-mentioned fault gently then causes coke oven to produce stopping production; heavy then cause explosion hazard; therefore must carry out reliably monitoring to the working order of waste gas exchange board, guarantee the reliable operation of coke oven exchange board.
Utility model content
The purpose of this utility model provides a kind of coke oven exhaust gas exchange board safety detection device for above-mentioned Problems existing; not only can the working order of Real-Time Monitoring waste gas exchange board; and the abnormal conditions that can occur according to waste gas exchange board carry out interlock protection, avoid the generation of coke oven industrial accident.
Above-mentioned object is achieved through the following technical solutions:
A kind of coke oven exhaust gas exchange board safety detection device, comprise main chain state monitoring apparatus, from chain state monitoring device and interlock protection control device, described main chain state monitoring apparatus comprises 4 detector switches of pusher side and the coke side being arranged on coke oven exhaust gas exchange board respectively; Described from chain broken chain detecting device comprise be arranged on coke oven exhaust gas exchange board respectively pusher side and coke side head end by the distance meter baffle plate of 4 laser ranging systems of oil cylinder position, the pusher side being arranged on coke oven exhaust gas exchange board and coke side both-side ends, be arranged on baffle plate vertical on each air intlet plate; Described interlock protection control device is PLC electrical control equipment.
Described coke oven exhaust gas exchange board safety detection device, 4 described detector switches are the pusher side chain forward detector switch of coke oven exhaust gas exchange board, pusher side chain inverse detection switch, the coke side chain forward detector switch of coke oven exhaust gas exchange board and coke side chain inverse detection switch.
Described coke oven exhaust gas exchange board safety detection device, 4 described laser ranging systems are the reverse stadimeter of pusher side air intlet plate of coke oven exhaust gas exchange board, pusher side air intlet plate forward stadimeter, the reverse stadimeter of coke side air intlet plate of coke oven exhaust gas exchange board and coke side air intlet plate forward stadimeter.
Described coke oven exhaust gas exchange board safety detection device, vertical baffle plate installed by described each air intlet plate, is respectively the coke side even number air intlet plate baffle plate of the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and coke oven exhaust gas exchange board; Have light hole outside the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, inside the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side even number air intlet plate baffle plate of coke oven exhaust gas exchange board, have light hole.
Accompanying drawing explanation
Fig. 1 waste gas exchange board is in forward switch figure.
Fig. 2 waste gas exchange board is in back exchange site plan.
Fig. 3 coke oven exhaust gas exchange board safety detection device structure iron.
Fig. 4 waste gas exchange board is in each baffle position schematic diagram of forward switch.
Fig. 5 waste gas exchange board is in each baffle position schematic diagram in back exchange position.
Fig. 6 interlock protection control device elementary diagram.
Fig. 7 (a) and Fig. 7 (b) is the reflective sheeting schematic diagram of two kinds of forms.
Fig. 8 (a) and Fig. 8 (b) is troubleshooting process figure.
The troubleshooting process figure that Fig. 9 (a) and Fig. 9 (b) is application example.
Wherein 1-waste gas exchange board oil cylinder, 2-chain, 3-air intlet plate (coke side closing condition), 4-air intlet plate (pusher side open mode), 5-bend wheel, 6-chain and tie rod node, 7-tie rod, 8-pusher side chain forward detector switch, 9-pusher side chain inverse detection switch, 10-coke side chain forward detector switch, 11-coke side chain inverse detection switch, the reverse stadimeter of 12-pusher side air intlet plate, 13-pusher side air intlet plate forward stadimeter, the reverse stadimeter of 14-coke side air intlet plate, 15-coke side air intlet plate forward stadimeter, 16-stadimeter baffle plate, 17-pusher side odd number air intlet plate baffle plate, 18-coke side odd number air intlet plate baffle plate, 19-pusher side even number air intlet plate baffle plate, 20-coke side even number air intlet plate baffle plate, 21-PLC electrical control equipment, 22-coal gas oil cylinder.
Embodiment
Below in conjunction with embodiment, illustrate the utility model further, following embodiment should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.
A kind of coke oven exhaust gas exchange board safety detection device, comprises main chain state monitoring apparatus, from chain state monitoring device and interlock protection control device, its structure principle chart as shown in Figure 3.Described main chain state monitoring apparatus comprises 4 detector switches of pusher side and the coke side being arranged on coke oven exhaust gas exchange board respectively; Its effect is exactly whether the main chain state of monitoring between exchange board oil cylinder 1 and tie rod 7 is correct, described from chain broken chain detecting device comprise be arranged on coke oven exhaust gas exchange board respectively pusher side and coke side head end by the distance meter baffle plate of 4 laser ranging systems of oil cylinder position, the pusher side being arranged on coke oven exhaust gas exchange board and coke side both-side ends, be arranged on baffle plate vertical on each air intlet plate; Described interlock protection control device is PLC electrical control equipment.
Described coke oven exhaust gas exchange board safety detection device, 4 described detector switches are the pusher side chain forward detector switch of coke oven exhaust gas exchange board, pusher side chain inverse detection switch, the coke side chain forward detector switch of coke oven exhaust gas exchange board and coke side chain inverse detection switch.Such as waste gas exchange board is when forward switch, changed by the mechanical force of waste gas exchange board oil cylinder, chain and tie rod, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 should be in trigger state, pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are non-toggle state, if detect, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 are non-toggle state, then can judge that pusher side and coke side main chain there occurs chain rupture fault respectively; Waste gas exchange board is when back exchange position, pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are trigger state, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 are non-toggle state, if pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are non-toggle state, then can judge that pusher side and coke side main chain there occurs chain rupture fault respectively.
Described coke oven exhaust gas exchange board safety detection device, 4 described laser ranging systems are the reverse stadimeter of pusher side air intlet plate of coke oven exhaust gas exchange board, pusher side air intlet plate forward stadimeter, the reverse stadimeter of coke side air intlet plate of coke oven exhaust gas exchange board and coke side air intlet plate forward stadimeter.In unobstructed situation, the laser ranging system being arranged on mechanical coke both sides head end can be irradiated on baffle plate 16 respectively, measures distance.
Described coke oven exhaust gas exchange board safety detection device, vertical baffle plate installed by described each air intlet plate, is respectively the coke side even number air intlet plate baffle plate of the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and coke oven exhaust gas exchange board; Have light hole outside the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, inside the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side even number air intlet plate baffle plate of coke oven exhaust gas exchange board, have light hole.When waste gas oil cylinder is in forward swap status, the light of coke side air intlet plate forward stadimeter 15 can pass from the light hole of coke side odd number air intlet plate baffle plate 18, the light of pusher side air intlet plate forward stadimeter 13 can pass from the light hole of pusher side even number air intlet plate baffle plate 19, is irradiated on baffle plate 16 respectively; When waste gas oil cylinder is in back exchange state, the light of the reverse stadimeter 12 of pusher side air intlet plate can pass from the light hole of pusher side odd number air intlet plate baffle plate 17, the light of the reverse stadimeter 14 of coke side air intlet plate can pass from the light hole of coke side even number air intlet plate baffle plate 20, is irradiated to respectively on baffle plate 16.When waste gas oil cylinder is in forward swap status, see Fig. 4, under normal circumstances, the value that coke side air intlet plate forward stadimeter 15 and pusher side air intlet plate forward stadimeter 13 record is baffle plate 16 distance, the reverse stadimeter of pusher side air intlet plate 12 and the reverse stadimeter 14 of coke side air intlet plate are blocked by pusher side even number air intlet plate baffle plate 19 and coke side odd number air intlet plate baffle plate 18 respectively, and what record is distance to these baffle plates.When occurring from chain chain rupture, the light that coke side air intlet plate forward stadimeter 15 sends can be blocked by coke side even number air intlet plate baffle plate 20, the light that pusher side air intlet plate forward stadimeter 13 sends can be blocked by pusher side odd number air intlet plate baffle plate 17, interval due to inlet mouth baffle plate is all fixing, therefore can extrapolate in which position there occurs from chain chain rupture accident according to the distance recorded.
When waste gas oil cylinder is in back exchange state, see Fig. 5, under normal circumstances, the value that the reverse stadimeter of pusher side air intlet plate 12 and the reverse stadimeter 14 of coke side air intlet plate record is baffle plate 16 distance, coke side air intlet plate forward stadimeter 15 and pusher side air intlet plate forward stadimeter 13 are blocked by coke side even number air intlet plate baffle plate 20 and pusher side odd number air intlet plate baffle plate 17 respectively, and what record is distance to these baffle plates.When occurring from chain chain rupture, the light that the reverse stadimeter 12 of pusher side air intlet plate sends can be blocked by pusher side even number air intlet plate baffle plate 19, the light that the reverse stadimeter 14 of coke side air intlet plate sends can be blocked by coke side odd number air intlet plate baffle plate 18, interval due to inlet mouth baffle plate is all fixing, therefore can extrapolate in which position there occurs from chain chain rupture accident according to the distance recorded.
Interlock protection control device is PLC electrical control equipment, for receiving above-mentioned master, from the electric signal that chain state monitoring device transmits, in conjunction with the state of waste gas exchange board, namely can judge waste gas exchange board main chain by logic control and whether there occurs chain rupture accident from chain, thus further step can be taked to avoid the generation of accident in coke-oven gas exchange process, concrete measure is, after being checked through waste gas chain generation chain rupture accident, coke oven gas exchanger oil cylinder is placed in mid-way (off-position) by immediate precedence, if use mixed gas, then respectively mixed gas oil cylinder is placed in off-position, thus cut-out coal gas, avoid the generation of explosion hazard.At the attribute according to chain rupture accident, check to waste gas exchange board scene.
Embody rule example:
With reference to Fig. 3, first main chain state monitoring apparatus is installed, pusher side chain forward detector switch 8 and pusher side chain inverse detection switch 9 are installed on exchange board oil cylinder pusher side position, and its effect triggers when pusher side tie rod is in forward switch and back exchange position respectively exactly.Coke side chain forward detector switch 10 and coke side chain inverse detection switch 11 are installed on exchange board oil cylinder coke side position, and its effect triggers when coke side tie rod is in forward switch and back exchange position respectively exactly.4 detector switches in this example all adopt electric proximity switch, whether the main chain state for monitoring between exchange board oil cylinder 1 and tie rod 7 is correct, such as waste gas exchange board is when forward switch, by waste gas exchange board oil cylinder, the mechanical force conversion of chain and tie rod, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 should be in trigger state, pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are non-toggle state, if detect, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 are non-toggle state, then can judge that pusher side and coke side main chain there occurs chain rupture fault respectively, waste gas exchange board is when back exchange position, pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are trigger state, pusher side chain forward detector switch 8 and coke side chain forward detector switch 10 are non-toggle state, if pusher side chain inverse detection switch 9 and coke side chain inverse detection switch 11 are non-toggle state, then can judge that pusher side and coke side main chain there occurs chain rupture fault respectively, interlock protection control device can take measures to avoid gas explosion accident.Troubleshooting process figure is as shown in Figure 8:
At exchange board mechanical coke both sides head end by installing 4 laser ranging systems near oil cylinder position, be respectively the reverse stadimeter of pusher side air intlet plate 12, pusher side air intlet plate forward stadimeter 13, the reverse stadimeter 14 of coke side air intlet plate and coke side air intlet plate forward stadimeter 15.Install stadimeter baffle plate 16 in exchange board mechanical coke both-side ends, in unobstructed situation, the laser ranging system being arranged on mechanical coke both sides head end can be irradiated on baffle plate 16 respectively, measures distance.
Manufacture reflective sheeting, and be vertically arranged on the air intlet plate of each exhaust gas disc, reflective sheeting is divided into odd even two kinds of specifications, be arranged on the air intlet plate of exchange board mechanical coke both sides respectively, wherein have light hole outside pusher side odd number air intlet plate baffle plate 17 and coke side odd number air intlet plate baffle plate 18, see shown in Fig. 7 (a).Have light hole inside pusher side even number air intlet plate baffle plate 19 and coke side even number air intlet plate baffle plate 20, see shown in Fig. 7 (b).When waste gas oil cylinder is in forward swap status, the light of coke side air intlet plate forward stadimeter 15 can pass from the light hole of coke side odd number air intlet plate baffle plate 18, the light of pusher side air intlet plate forward stadimeter 13 can pass from the light hole of pusher side even number air intlet plate baffle plate 19, is irradiated on baffle plate 16 respectively; When waste gas oil cylinder is in back exchange state, the light of the reverse stadimeter 12 of pusher side air intlet plate can pass from the light hole of pusher side odd number air intlet plate baffle plate 17, the light of the reverse stadimeter 14 of coke side air intlet plate can pass from the light hole of coke side even number air intlet plate baffle plate 20, is irradiated to respectively on baffle plate 16.Be set in this example in 60 hole coke ovens of carbonizing chamber pitch-row D=1.5 rice and use (exhaust gas disc be 61 to), the distance L=100 rice of laser ranging system and baffle plate 16, the closest range D1=D2=5 rice of each stadimeter and the nearest air intlet plate baffle plate of baffle plate 16.
When waste gas oil cylinder is in forward swap status, see Fig. 4, under normal circumstances, the value that coke side air intlet plate forward stadimeter 15 and pusher side air intlet plate forward stadimeter 13 record is baffle plate 16 apart from (L1=L2=L=100 rice), the reverse stadimeter of pusher side air intlet plate 12 and the reverse stadimeter 14 of coke side air intlet plate are blocked by pusher side even number air intlet plate baffle plate 19 and coke side odd number air intlet plate baffle plate 18 respectively, what record is distance to these baffle plates, is respectively 6.5 meters and 5 meters.When occurring from chain chain rupture, the light that coke side air intlet plate forward stadimeter 15 sends can be blocked by coke side even number air intlet plate baffle plate 20, if the distance recorded is L1=21.5 rice, then can infer the coke side waste gas reel number that chain rupture occurs: (L1-D1) ÷ D+1=(21.5-5) ÷ 1.5+1=12, the light that pusher side air intlet plate forward stadimeter 13 sends can be blocked by pusher side odd number air intlet plate baffle plate 17, if the distance recorded is L2=20 rice, then can infer the pusher side waste gas reel number that chain rupture occurs: (L2-D1) ÷ D+1=(20-5) ÷ 1.5+1=11.
When waste gas oil cylinder is in back exchange state, see Fig. 5, under normal circumstances, the value that the reverse stadimeter of pusher side air intlet plate 12 and the reverse stadimeter 14 of coke side air intlet plate record is baffle plate 16 apart from (L3=L4=L=100 rice), coke side air intlet plate forward stadimeter 15 and pusher side air intlet plate forward stadimeter 13 are blocked by coke side even number air intlet plate baffle plate 20 and pusher side odd number air intlet plate baffle plate 17 respectively, and what record is distance to these baffle plates.When occurring from chain chain rupture, the light that the reverse stadimeter 12 of pusher side air intlet plate sends can be blocked by pusher side even number air intlet plate baffle plate 19, if the distance recorded is L3=21.5 rice, then can infer the coke side waste gas reel number that chain rupture occurs: (L3-D1) ÷ D+1=(21.5-5) ÷ 1.5+1=12, the light that the reverse stadimeter 14 of coke side air intlet plate sends can be blocked by coke side odd number air intlet plate baffle plate 18, if the distance recorded is L4=20 rice, then can infer the coke side waste gas reel number that chain rupture occurs: (L4-D1) ÷ D+1=(20-5) ÷ 1.5+1=11.
Interval due to inlet mouth baffle plate is all fixing, by the distance that control system PLC shown in Fig. 6 sampling stadimeter when waste gas exchange board forward and position, direction records, can judge at once the position from chain chain rupture accident occurs, and take measures to avoid gas explosion accident.Troubleshooting process figure is as shown in Figure 9:
Waste gas exchange board main chain can be judged by said apparatus and method and whether there occurs chain rupture accident from chain, thus further step can be taked to avoid the generation of accident in coke-oven gas exchange process, concrete measure is, after being checked through waste gas chain generation chain rupture accident, coke oven gas exchanger oil cylinder is placed in mid-way (off-position) by immediate precedence, if use mixed gas, then respectively mixed gas oil cylinder is placed in off-position, thus cut-out coal gas, avoid the generation of explosion hazard.Again according to the attribute of chain rupture accident, check to waste gas exchange board scene.
Claims (4)
1. a coke oven exhaust gas exchange board safety detection device, it is characterized in that: comprise main chain state monitoring apparatus, from chain state monitoring device and interlock protection control device, described main chain state monitoring apparatus comprises 4 detector switches of pusher side and the coke side being arranged on coke oven exhaust gas exchange board respectively; Described from chain broken chain detecting device comprise be arranged on coke oven exhaust gas exchange board respectively pusher side and coke side head end by the distance meter baffle plate of 4 laser ranging systems of oil cylinder position, the pusher side being arranged on coke oven exhaust gas exchange board and coke side both-side ends, be arranged on baffle plate vertical on each air intlet plate; Described interlock protection control device is PLC electrical control equipment.
2. coke oven exhaust gas exchange board safety detection device according to claim 1, it is characterized in that: 4 described detector switches are the pusher side chain forward detector switch of coke oven exhaust gas exchange board, pusher side chain inverse detection switch, the coke side chain forward detector switch of coke oven exhaust gas exchange board and coke side chain inverse detection switch.
3. coke oven exhaust gas exchange board safety detection device according to claim 1 and 2, is characterized in that: 4 described laser ranging systems are the reverse stadimeter of pusher side air intlet plate of coke oven exhaust gas exchange board, pusher side air intlet plate forward stadimeter, the reverse stadimeter of coke side air intlet plate of coke oven exhaust gas exchange board and coke side air intlet plate forward stadimeter.
4. coke oven exhaust gas exchange board safety detection device according to claim 1, it is characterized in that: vertical baffle plate installed by described each air intlet plate, be respectively the coke side even number air intlet plate baffle plate of the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and coke oven exhaust gas exchange board; Have light hole outside the pusher side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side odd number air intlet plate baffle plate of coke oven exhaust gas exchange board, inside the pusher side even number air intlet plate baffle plate of coke oven exhaust gas exchange board and the coke side even number air intlet plate baffle plate of coke oven exhaust gas exchange board, have light hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854510.5U CN205115369U (en) | 2015-10-31 | 2015-10-31 | Coke oven waste gas switch safety inspection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854510.5U CN205115369U (en) | 2015-10-31 | 2015-10-31 | Coke oven waste gas switch safety inspection device |
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| CN205115369U true CN205115369U (en) | 2016-03-30 |
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| CN201520854510.5U Active CN205115369U (en) | 2015-10-31 | 2015-10-31 | Coke oven waste gas switch safety inspection device |
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