CN204267743U - Crossover valve and blast furnace gas feedway - Google Patents
Crossover valve and blast furnace gas feedway Download PDFInfo
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- CN204267743U CN204267743U CN201420698363.2U CN201420698363U CN204267743U CN 204267743 U CN204267743 U CN 204267743U CN 201420698363 U CN201420698363 U CN 201420698363U CN 204267743 U CN204267743 U CN 204267743U
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- thallium
- commutation
- crossover
- crossover valve
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Abstract
The utility model provides a kind of crossover valve for controlling blast furnace gas and blast furnace gas feedway.Blast furnace gas crossover valve of the present utility model and blast furnace gas feedway, because thallium body and valve seat have the arc contact surface cooperatively interacted, thallium contact level is spherical structure, can reduce dust accumulation on the contact surface; Meanwhile, because the unlatching of valve thallium or closedown make surface of contact have self-grind function, part dust can be cleared up; Meanwhile, described seal form makes valve seal good, avoids the leakage of coal gas, and energy saving is also conducive to environmental protection.Meanwhile, because crossover valve is arranged at waste gas exchange shutter outside, washing away and roasting, not easily dust stratification not by dust-laden high-temp waste gas, avoids occurring card thallium phenomenon; Not easily occur that coal gas leaks in a large number, avoid energy loss and pollution of atmosphere; Overcome because crossover valve is in waste gas exchange shutter in prior art, off-gas flows resistance is large, makes the shortcoming that chimney construction cost increases.
Description
Technical field
The utility model relates to coking technology field, particularly, relates to a kind of crossover valve and blast furnace gas feedway.
Background technique
As shown in Figure 1, the waste gas exchange shutter of blast furnace comprises waste gas outlet 6 and the exhaust gas entrance 7 at two ends, promoting or landing, controlling unlatching or the closedown of one end waste gas outlet 6 by controlling waste gas valve gap 5;
The coal gas crossover valve of prior art is positioned at waste gas exchange shutter, and coal gas crossover valve comprises valve thallium 3, and the thallium bar 2 be connected with valve thallium 3, and thallium bar 2 is by transmission shaft 1 connecting drive device; Unlatching or the closedown of valve thallium 3 pairs of gas passages 4 is completed by the lifting of thallium bar 2 or landing.
As shown in Figure 1, valve thallium 3 and the thallium bar 2 of coal gas crossover valve are positioned at above-mentioned exhaust steam passage, suffer washing away and roasting of dust-laden high-temp waste gas, be easy to dust stratification, make thallium bar 2 rough surface, and can not move glossily in mentioning and falling in process of thallium bar 2, easily cause the generation of card thallium phenomenon; Cause gas valve during opening and closing switches, coal gas bleeds exhaust steam passage in a large number, have lost the energy and atmosphere pollution;
Because valve thallium 3 is also in waste gas exchange shutter, the existence of thallium body will certainly cause the reduction of waste gas actual internal area, off-gas flows resistance increases, and makes chimney have to increase, thus causes construction cost to increase;
More disadvantageously, be edge seal between valve thallium 3 and gas passage 4, as shown in Figure 2, contact plane 31 and the gas passage end face 41 of valve thallium 3 and gas passage 4 contact, and are in exhaust steam passage for a long time, easily form dust stratification point 8, dust stratification point 8 causes valve thallium 3 poorly sealed, causes gas leakage;
Meanwhile, end face 41 cleaning process of valve thallium 3, thallium bar 2 and gas passage 4 is complicated, and waste gas exchange shutter narrow space repairs inconvenience.
Model utility content
The purpose of this utility model is the problem such as easy card thallium, poor sealing solving the existence of prior art coal gas crossover valve, provides a kind of crossover valve of improvement.
The technological scheme that solution the utility model technical problem adopts is a kind of crossover valve, and comprising: valve body, described valve body has the valve seat with pipeline communication;
Be arranged on the valve thallium of described valve inner, described valve thallium can with described valve seat closing contact;
Described valve thallium and described valve seat have the arc contact surface cooperatively interacted.
Preferably, described arc contact surface is spherical.
Preferably, comprise the driving mechanism for the lifting of actuating valve thallium, described driving mechanism comprises: the coupling shaft running through described valve body;
At the tommy bar that valve body outside is fixedly connected with described coupling shaft one end; At the connecting rod that valve inner is fixedly connected with described coupling shaft;
Described connecting rod is connected with valve thallium by connection chain.
Preferably, described connection chain comprises special-shaped chain, and described special-shaped chain comprises multiple slip-knot connected in turn.
Preferably, valve thallium is provided with thallium hole away from the circumference of described valve seat.
Preferably, described thallium hole is arranged along the circumferencial direction uniform intervals of valve thallium.
Preferably, also comprise the driving mechanism for driving described driving mechanism, driving mechanism comprises commutation tie rod and spaced commutation card on commutation tie rod;
One end of described tommy bar has tommy bar fork, and tommy bar fork comprises along axially extended two the spaced forks of tommy bar;
Commutation tie rod is between described two forks;
Tommy bar vent is between described commutation card.
Preferably, described commutation card axially can carry out position regulation at described commutation tie rod.
Preferably, described commutation cartoon is crossed bolt and is connected with described commutation tie rod, and when loosening the bolt on commutation card, commutation card can regulate at the enterprising line position of commutation tie rod, when tightening the bolt on commutation card, commutation can be fastened on commutation tie rod.
Another object of the present utility model is to provide a kind of blast furnace gas feedway, comprising: the waste gas exchange shutter be communicated with blast furnace gas pipeline; The gas pipe line be connected with described waste gas exchange shutter, adopts above-mentioned crossover valve to control the on-off of coal gas in waste gas exchange shutter outside.
Crossover valve of the present utility model and blast furnace gas feedway, because described valve thallium and described valve seat have the arc contact surface cooperatively interacted, can reduce dust accumulation on the contact surface; Meanwhile, because the unlatching of valve thallium or closedown make surface of contact have self-grind function, can clear up part dust, avoid gas leakage, energy saving is also conducive to environmental protection.Meanwhile, because crossover valve is placed in waste gas exchange shutter outside, washing away and roasting, not easily dust stratification not by dust-laden high-temp waste gas, avoids occurring card thallium phenomenon; Not easily occur that coal gas leaks in a large number, avoid energy loss and pollution of atmosphere; Overcome because crossover valve is in waste gas exchange shutter in prior art, waste gas actual internal area is little, off-gas flows resistance is large, the shortcoming that construction cost chimney being increased cause increases.
Accompanying drawing explanation
Fig. 1 is the structural representation that in prior art, coal gas crossover valve is positioned at waste gas exchange shutter.
Fig. 2 is the structure enlarged diagram of coal gas crossover valve in prior art.
Fig. 3 is crossover valve structural representation in the utility model embodiment 1.
Fig. 4 is the tommy bar fork enlarged diagram of crossover valve in the utility model embodiment 1.
Description of reference numerals:
1. transmission shaft; 2. thallium bar; 3. valve thallium; 31. valve thallium contact planes; 4. gas passage; 41. gas passage end faces; 5. waste gas valve gap; 6. waste gas outlet; 7. exhaust gas entrance; 8. dust stratification point;
10. valve body; 101. valve seat; 102. the contact surface of valve seat;
11. valve thalliums; 111. thallium holes; 112. gas weight surface of contact;
121. tommy bar; 122. connecting rod; 123. coupling shaft; 1211. tommy bar is pitched;
131. commutation tie rods; 132. commutation cards;
14. special-shaped chains.
Embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 3-4, the present embodiment provides a kind of crossover valve, comprising: valve body 10, and described valve body 10 has the valve seat 101 with pipeline communication;
Be arranged on the valve thallium 11 of valve body 10 inside, described valve thallium 11 can with described valve seat 101 close contact; Described valve thallium 11 and described valve seat 101 have the arc contact surface cooperatively interacted.
Crossover valve of the present utility model, because described valve thallium 11 and described valve seat 101 have the arc contact surface cooperatively interacted, can reduce dust accumulation on the contact surface; Meanwhile, due to valve thallium 11 unlatching or be closed in surface of contact there is self-grind function, part dust can be cleared up; Meanwhile, arc contact surface makes valve body 10 good airproof performance, avoids the leakage of coal gas, and energy saving is also conducive to environmental protection.
Preferably, described arc contact surface is spherical.
Preferably, crossover valve comprises the driving mechanism for actuating valve thallium 11, comprises the coupling shaft 123 running through described valve body 10;
At the tommy bar 121 that valve body 10 outside is fixedly connected with described coupling shaft 123 one end; At the connecting rod 122 that valve body 10 inside is fixedly connected with described coupling shaft 123;
Described connecting rod 122 is connected with described valve thallium 11 by connection chain.
Above-mentioned tommy bar 121 is fixedly connected with coupling shaft 123 by several angle with connecting rod 122, drives connecting rod 122 to rotate up or down when tommy bar 121 rotates, thus, make connection chain tensioning or lax, and then drive valve thallium 11 to be elevated.Give driving mechanism as shown in Figure 3 opening (shown in dotted line) and close the schematic diagram of two states.
Preferably, described connection chain comprises special-shaped chain 14, and special-shaped chain 14 comprises multiple slip-knot connected in turn.Each slip-knot has suitable distance, like this when the tensioning of special-shaped chain 14 or lax time, can phase mutual friction and reach the object of Automatic clearance between slip-knot.
Simultaneously, when adopting above-mentioned connection chain to land to valve thallium 11, in the process that valve thallium 11 can be made to contact with the contact surface of valve seat 102 at gas weight surface of contact 112, the gravity of self is relied on to complete the adjustment of center of gravity, thus enhance grinding function, and the contact of surface of contact can be made more tight, sealability is better.
Preferably, described valve thallium 11 is provided with thallium hole 111 away from the circumference of valve seat 101.Thallium hole 111 thus rotating valve thallium 11 can be inserted when overhauling by leverage tool, make valve thallium 11 cleaning to a certain extent.
Preferably, described thallium hole 111 is arranged along the circumferencial direction uniform intervals of valve thallium 11.Contribute to leverage tool rotating valve thallium 11 like this.
Preferably, comprise the driving mechanism for driving described driving mechanism, commutation tie rod 131 and spaced commutation card 132 on commutation tie rod 131;
As shown in Figure 4, one end of described tommy bar 121 has tommy bar fork 1211, and described tommy bar fork 1211 comprises along axially extended two the spaced forks of tommy bar 121;
Described commutation tie rod 131 is between two forks;
Described tommy bar fork 1211 is between commutation card 132.
When commutation tie rod 131 moves along its axial direction, the tommy bar fork 1211 between commutation card 132 is driven, thus drive transmission device rotates, and realizes the lifting of valve thallium 11.Give driving mechanism as shown in Figure 3 opening (shown in dotted line) and close the schematic diagram of two states.
Preferably, described commutation card 132 axially carries out position regulation at described commutation tie rod 131.Like this when the move distance of tommy bar fork 1211 does not mate with the lifting of valve thallium 11, can the distance between commutation card 132 be finely tuned.
As shown in Figure 3, preferably, described commutation card 132 is connected with described commutation tie rod 131 by bolt, when loosening the bolt on commutation card, commutation card 132 can regulate at the enterprising line position of commutation tie rod 131, when tightening the bolt on commutation card 132, commutation card 132 can be fixed on commutation tie rod 131.
Coal gas crossover valve in the crossover valve hinge structure of the present embodiment, exposes without thallium bar, and the motion mode of driving mechanism changes rotation into by traditional moving up and down, and completely avoid card thallium phenomenon; Valve body is little, rational in infrastructure, and gas-flow resistance is little; Valve seal is good, avoids the leakage of coal gas, and energy saving is also conducive to environmental protection.
Embodiment 2
The present embodiment provides a kind of blast furnace gas feedway, comprising: the waste gas exchange shutter be communicated with blast furnace gas pipeline; The gas pipe line be connected with described waste gas exchange shutter, adopts above-mentioned crossover valve to control the on-off of coal gas in described waste gas exchange shutter outside.
Because crossover valve is arranged at waste gas exchange shutter outside, crossover valve washing away and roasting, not easily dust stratification not by dust-laden high-temp waste gas, avoids occurring card thallium phenomenon; Not easily occur that coal gas leaks in a large number, avoid energy loss and pollution of atmosphere; Overcome because crossover valve is in waste gas exchange shutter in prior art, waste gas actual internal area is little, off-gas flows resistance is large, the shortcoming that construction cost chimney being increased cause increases.
Be understandable that, the illustrative embodiments that above mode of execution is only used to principle of the present utility model is described and adopts, but the utility model is not limited thereto.For those skilled in the art, when not departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (10)
1. a crossover valve, comprising: valve body, and described valve body has the valve seat with pipeline communication;
Be arranged on the valve thallium of described valve inner, described valve thallium can with described valve seat closing contact;
It is characterized in that: described valve thallium and described valve seat have the arc contact surface cooperatively interacted.
2. crossover valve as claimed in claim 1, is characterized in that: described arc contact surface is spherical.
3. crossover valve as claimed in claim 1, is characterized in that: comprise the driving mechanism for the lifting of actuating valve thallium, described driving mechanism comprises: the coupling shaft running through described valve body;
At the tommy bar that valve body outside is fixedly connected with described coupling shaft one end; At the connecting rod that valve inner is fixedly connected with described coupling shaft;
Described connecting rod is connected with valve thallium by connection chain.
4. crossover valve as claimed in claim 3, it is characterized in that: described connection chain comprises special-shaped chain, described special-shaped chain comprises multiple slip-knot connected in turn.
5. crossover valve as claimed in claim 1, is characterized in that: valve thallium is provided with thallium hole away from the circumference of described valve seat.
6. crossover valve as claimed in claim 5, is characterized in that: described thallium hole is arranged along the circumferencial direction uniform intervals of valve thallium.
7. crossover valve as claimed in claim 3, is characterized in that: also comprise the driving mechanism for driving described driving mechanism, and driving mechanism comprises commutation tie rod and spaced commutation card on commutation tie rod;
One end of described tommy bar has tommy bar fork, and tommy bar fork comprises along axially extended two the spaced forks of tommy bar;
Commutation tie rod is between described two forks;
Tommy bar vent is between described commutation card.
8. crossover valve as claimed in claim 7, is characterized in that: described commutation card axially can carry out position regulation at described commutation tie rod.
9. crossover valve as claimed in claim 8, it is characterized in that: described commutation cartoon is crossed bolt and is connected with described commutation tie rod, when loosening the bolt on commutation card, commutation card can regulate at the enterprising line position of commutation tie rod, when tightening the bolt on commutation card, commutation can be fastened on commutation tie rod.
10. a blast furnace gas feedway, comprising: the waste gas exchange shutter be communicated with blast furnace gas pipeline; The gas pipe line be connected with waste gas exchange shutter, is characterized in that: adopt the crossover valve as described in any one of claim 1-9 to control the on-off of coal gas in described waste gas exchange shutter outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698363.2U CN204267743U (en) | 2014-11-19 | 2014-11-19 | Crossover valve and blast furnace gas feedway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698363.2U CN204267743U (en) | 2014-11-19 | 2014-11-19 | Crossover valve and blast furnace gas feedway |
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| Publication Number | Publication Date |
|---|---|
| CN204267743U true CN204267743U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420698363.2U Active CN204267743U (en) | 2014-11-19 | 2014-11-19 | Crossover valve and blast furnace gas feedway |
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| CN (1) | CN204267743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706683A (en) * | 2020-05-18 | 2020-09-25 | 重庆界石仪表有限公司 | Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station |
-
2014
- 2014-11-19 CN CN201420698363.2U patent/CN204267743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706683A (en) * | 2020-05-18 | 2020-09-25 | 重庆界石仪表有限公司 | Pressure regulating valve seat cleaning device of pressure regulator of underground pressure regulating station |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: Section thirteen economic and Technological Development Zone of Beijing City 31 street 100176 No. two School District No. 15 Building 5 layer 501 Patentee after: HUATAI YONGCHUANG (BEIJING) TECHNOLOGY Co.,Ltd. Address before: 101318, building 14, Rong Hui Garden, B District, Shunyi District Airport Industrial Park, Beijing Patentee before: BEIJING HUATAI COKING ENGINEERING CONSULTING Corp. |