CN105736813A - Counterweight-free pressure-adjustable relief valve with non-turnover structures for furnace top of blast furnace - Google Patents
Counterweight-free pressure-adjustable relief valve with non-turnover structures for furnace top of blast furnace Download PDFInfo
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- CN105736813A CN105736813A CN201610261169.1A CN201610261169A CN105736813A CN 105736813 A CN105736813 A CN 105736813A CN 201610261169 A CN201610261169 A CN 201610261169A CN 105736813 A CN105736813 A CN 105736813A
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- Prior art keywords
- valve
- blast furnace
- guide rail
- counterweight
- valve gap
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/002—Evacuating and treating of exhaust gases
- C21B7/005—Bleeder valves or slides
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention discloses a counterweight-free pressure-adjustable relief valve with non-turnover structures for a furnace top of a blast furnace. By the aid of the counterweight-free pressure-adjustable relief valve with the non-turnover structures for the furnace top of the blast furnace, the problem that self-locking pressures cannot be accurately controlled by existing counterweight-free relief valves for blast furnaces is mainly solved. The counterweight-free pressure-adjustable relief valve with the non-turnover structures for the furnace top of the blast furnace comprises a valve, a bonnet, a connector, two limiting devices and an expansion device. The valve is arranged on the furnace top of the blast furnace, the bonnet is matched with the valve, the connector is hinged to the top of the bonnet, the two limiting devices are matched with two ends of the connector, and the expansion device is used for constraining the bonnet; relief holes are formed in the top of the valve; the axis of the expansion device is aligned with the axes of the relief holes when the bonnet and the valve are closed, and is parallel to the axes of the relief holes. The counterweight-free pressure-adjustable relief valve in an embodiment of the invention has the advantage that constraint force on the bonnet can be precisely controlled.
Description
Technical field
The present invention relates to a kind of blast furnace top non-toggle structure without counterweight pressure-adjustable diffusion valve.
Background technology
The raw gas produced in blast furnace ironmaking process, through the coal gas tedge of upper blast furnace, is sent to dust pelletizing system purified treatment.For keeping stablizing of conditions of blast furnace, the gas pressure in blast furnace need to stably in certain scope.Such Top of BF coal gas official road must be installed bleeding valve, when furnace pressure is too high, open diffusion valve, regulate furnace pressure, additionally, blast furnace is out of order during maintenance, open diffusion valve, coal gas diffusion is fallen, it is simple to safety inspection.
For many years, bleeding valve has been used up lever counterweight diffusion valve, and the closedown of valve is completed by counterweight pressure, huge structure, and valve is heavy.Although subsequent development common without balance weight diffusing valve on furnace roof without counterweight, but when valve closing, mechanism is self-locking state, if furnace pressure raises suddenly, due to mechanism's self-locking, valve can not be opened, and equally exists potential safety hazard.And the upset structure of routine is when utilizing hydraulic cylinder to realize self-locking, because switching process exists the reason of moment variations, it is impossible to accurately control self-locking pressure.
Summary of the invention
For the problems referred to above, the present invention provide a kind of can the blast furnace top non-toggle structure of restraining forces suffered by precision control valve lid without counterweight pressure-adjustable diffusion valve.
For reaching above-mentioned purpose, the present invention includes two stopping means that the valve body the being arranged on blast furnace roof connector hinged with valve gap top with the valve gap that described valve body coordinates coordinate with described connector two ends and for retraining the retractor device of valve gap；The top of described valve body is provided with diffuses hole；When described valve gap and described valve body Guan Bi, and the axis of described retractor device is parallel with the described axis diffusing hole.
Further, described stopping means at least includes aliging the upright guide rail arranged with the described axially bored line that diffuses, the axis of the upright guide rail of described two stopping means and the described axis co-planar diffusing hole；Described connector two ends are respectively arranged with the roller or slide block that coordinate with described upright guide rail.
Further, described retractor device includes two hydraulic cylinders being arranged on valve gap both sides, and the cylinder body of described hydraulic cylinder is connected with blast furnace roof, and the piston rod of described hydraulic cylinder is connected with described connector.
Further, described stopping means also includes the horizontal guide rail that is correspondingly arranged with upright guide rail and for being connected described horizontal guide rail and the arc-shaped guide rail of described upright guide rail.
Further, described horizontal rail is not less than valve gap along 1.5 times of described horizontal guide rail axis direction length away from the distance between one end and the axis of described vertical rail of vertical rail.
Further, the top outer of described valve body is provided with male-tapered face, and the inner side of described valve gap is provided with the inner conical face coordinated with male-tapered face, described male-tapered face and be both provided with flexible gasket on described inner conical face.
When valve gap needs to open, retractor device moves, and along the track of stopping means, valve gap is opened.Due to when valve gap closes with valve body, the axis of retractor device aligns and parallel with the axis diffusing hole, after ignoring the impact such as gravity and frictional force, retractor device is in balance between two forces shape body to the pressure of the valve body suffered by the restraining forces of valve gap and valve gap, so this device can restraining forces suffered by precision control valve lid, when valve body to the pressure of valve gap more than restraining forces after, valve gap automatically opens up.
Accompanying drawing explanation
Fig. 1 is front view during diffusion valve Guan Bi；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is front view during diffusion valve unlatching；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the attachment structure schematic diagram of connector and valve gap；
Fig. 6 is the attachment structure schematic diagram of connector and retractor device；
Fig. 7 is limit device structure schematic diagram.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
Embodiment 1
As Figure 1-5, the present embodiment blast furnace top non-toggle structure includes two stopping means 4 that the valve body 1 the being arranged on blast furnace roof connector 3 hinged with valve gap 2 top with the valve gap 2 that described valve body 1 coordinates coordinate with described connector 3 two ends and for retraining the retractor device 5 of valve gap 2 without counterweight pressure-adjustable diffusion valve；The top of described valve body 1 is provided with diffuses hole；When described valve gap 2 closes with described valve body 1, and the axis of described retractor device 5 is parallel with the described axis diffusing hole.
The present embodiment blast furnace top non-toggle structure is without counterweight pressure-adjustable diffusion valve when valve gap 2 needs to open, and retractor device 5 moves, and along the track of stopping means 4, valve gap 2 is opened.Due to when valve gap 2 closes with valve body 1, the axis of retractor device 5 aligns and parallel with the axis diffusing hole, after ignoring the impact such as gravity and frictional force, retractor device 5 is in balance between two forces shape body to the pressure of the valve body 1 suffered by the restraining forces of valve gap 2 and valve gap 2, so this device can restraining forces suffered by precision control valve lid 2, after valve body 1 gives the pressure of valve gap 2 more than restraining forces, valve gap 2 automatically opens up.Compared with traditional lever counterweight diffusion valve, the blast furnace top non-toggle structure of the present embodiment is without counterweight pressure-adjustable diffusion valve simple in construction, easy to operate, and compared with common diffusion valve without counterweight, the blast furnace top non-toggle structure of the present embodiment regulates facility without counterweight pressure-adjustable diffusion valve, restraining forces control accuracy is high, and safety coefficient is high.
Embodiment 2
On the basis of above-described embodiment, as it is shown in fig. 7, described stopping means 4 at least includes aliging the upright guide rail 51 arranged with the described axially bored line that diffuses, the axis of the upright guide rail 51 of described two stopping means 4 and the described axis co-planar diffusing hole；Described connector 3 two ends are respectively arranged with the roller 52 coordinated with described upright guide rail 51.
The blast furnace top non-toggle structure of the present embodiment without counterweight pressure-adjustable diffusion valve valve gap 2 open and close process in, all the time it is move along vertical guide 51, thus, retractor device 5 is to the restraining forces of valve gap 2 also in the vertical direction all the time, that is, valve gap 2 only receives the power of upper and lower both direction all the time, thus, it is possible to be accurately controlled its stress in the motor process of valve gap 2 all the time.
Embodiment 3
On the basis of above-described embodiment, as shown in Figure 6, described retractor device 5 includes two hydraulic cylinders being arranged on valve gap 2 both sides, and the cylinder body of described hydraulic cylinder is connected with blast furnace roof, and the piston rod of described hydraulic cylinder is connected with described connector 3.
Hydraulic cylinder good stability, the precision driven is high, therefore, the present embodiment adopts hydraulic cylinder as the driving device driving valve gap 2, it addition, by hinged to hydraulic cylinder and blast furnace roof and connector 3, hydraulic cylinder is made to provide only along the axial power of hydraulic cylinder, thus, it is possible to be more accurately controlled the restraining forces of hydraulic cylinder.
The present embodiment does not limit retractor device as hydraulic cylinder, and retractor device can also be Electrohydraulic push rod, it might even be possible to the two-way reducing motor acted on connected body adds steel wire rope.Additionally, the mounting means of retractor device is also not necessarily to be installed in the homonymy diffusing lid, it is also possible to arrange support at blast furnace roof, is arranged on support by one end of retractor device, the other end is connected with connector, thus retractor device can be arranged on the top of valve gap.
Embodiment 4
On the basis of above-described embodiment, as Figure 1-5, described stopping means 4 also includes the horizontal guide rail 51 that is correspondingly arranged with upright guide rail 51 and for being connected the arc-shaped guide rail 51 of described horizontal guide rail 51 and described upright guide rail 51.
In the present embodiment, connector 3 moves along stopping means 4, it is possible to removed from the surface of valve body 1 by valve gap 2, when needs are to blast furnace maintenance, valve gap 2 is removed from the surface of valve body 1 such that it is able to avoid valve gap 2 to form stop to diffusing the air-flow diffused in hole, it is possible to increase the speed diffused.
Embodiment 5
On the basis of embodiment 4, described horizontal rail is not less than valve gap 2 along 1.5 times of described horizontal guide rail 51 axis direction length away from the distance between one end and the axis of described vertical rail of vertical rail.
The length of the horizontal rail of the present embodiment ensure that valve gap 2 is removed completely from the surface diffusing hole, it is possible to further speeds up diffusing of coal gas when needing maintenance blast furnace.
Embodiment 6
On the basis of above-described embodiment, the top outer of described valve body 1 is provided with male-tapered face, and the inner side of described valve gap 2 is provided with the inner conical face coordinated with male-tapered face, described male-tapered face and be both provided with flexible gasket on described inner conical face.
The present embodiment arranges the conical surface on valve gap 2 and valve body 1 such that it is able to makes valve gap 2 and valve body 1 airtight more smoothly and opens, and arranging flexible liner on the conical surface, it is possible to sealing property when making valve gap 2 fall and between valve body 1 is better.
Above; being only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; the change that can readily occur in or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim defines.
Claims (6)
1. a blast furnace top non-toggle structure is without counterweight pressure-adjustable diffusion valve, it is characterised in that: include two stopping means that the valve body the being arranged on blast furnace roof connector hinged with valve gap top with the valve gap that described valve body coordinates coordinate with described connector two ends and for retraining the retractor device of valve gap；The top of described valve body is provided with diffuses hole；When described valve gap and described valve body Guan Bi, and the axis of described retractor device is parallel with the described axis diffusing hole.
2. blast furnace top non-toggle structure as claimed in claim 1 is without counterweight pressure-adjustable diffusion valve, it is characterized in that: described stopping means at least includes aliging the upright guide rail arranged with the described axially bored line that diffuses, the axis of the upright guide rail of described two stopping means and the described axis co-planar diffusing hole；Described connector two ends are respectively arranged with the roller or slide block that coordinate with described upright guide rail.
3. blast furnace top non-toggle structure as claimed in claim 1 is without counterweight pressure-adjustable diffusion valve, it is characterized in that: described retractor device includes being arranged on two hydraulic cylinders of valve gap both sides, the cylinder body of described hydraulic cylinder is connected with blast furnace roof, and the piston rod of described hydraulic cylinder is connected with described connector.
4. as claimed in claim 2 blast furnace top non-toggle structure without counterweight pressure-adjustable diffusion valve, it is characterised in that: described stopping means also includes the horizontal guide rail that is correspondingly arranged with upright guide rail and for being connected described horizontal guide rail and the arc-shaped guide rail of described upright guide rail.
5. as claimed in claim 4 blast furnace top non-toggle structure without counterweight pressure-adjustable diffusion valve, it is characterised in that: described horizontal rail is not less than valve gap along 1.5 times of described horizontal guide rail axis direction length away from the distance between one end and the axis of described vertical rail of vertical rail.
6. blast furnace top non-toggle structure as claimed in claim 1 is without counterweight pressure-adjustable diffusion valve, it is characterized in that: the top outer of described valve body is provided with male-tapered face, the inner side of described valve gap is provided with the inner conical face coordinated with male-tapered face, described male-tapered face and be both provided with flexible gasket on described inner conical face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261169.1A CN105736813B (en) | 2016-04-25 | 2016-04-25 | Blast furnace top non-toggle structure is without counterweight pressure-adjustable diffusion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261169.1A CN105736813B (en) | 2016-04-25 | 2016-04-25 | Blast furnace top non-toggle structure is without counterweight pressure-adjustable diffusion valve |
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| Publication Number | Publication Date |
|---|---|
| CN105736813A true CN105736813A (en) | 2016-07-06 |
| CN105736813B CN105736813B (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610261169.1A Active CN105736813B (en) | 2016-04-25 | 2016-04-25 | Blast furnace top non-toggle structure is without counterweight pressure-adjustable diffusion valve |
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| CN (1) | CN105736813B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130758A (en) * | 2021-11-30 | 2022-03-04 | 广州市光裕汽车空调制造有限公司 | Automatic purging machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158367A (en) * | 1976-04-12 | 1979-06-19 | S.A. Des Anciens Etablissements Paul Wurth | Valve system and improved actuator therefor |
| CN2622493Y (en) * | 2003-06-27 | 2004-06-30 | 韩晓东 | High-temp. dust gas releasing valve for liquid alloy multi-ving connecting vessel |
| CN2928861Y (en) * | 2006-07-28 | 2007-08-01 | 江阴兴澄特种钢铁有限公司 | Discharging valve system for blast furnace top gas |
| CN201447483U (en) * | 2009-06-29 | 2010-05-05 | 江苏神通阀门股份有限公司 | Gas relief valve |
| CN202001713U (en) * | 2011-02-24 | 2011-10-05 | 中冶华天工程技术有限公司 | Counterweight-free pressure-adjustable roof bleeding valve |
| CN103148259A (en) * | 2013-03-07 | 2013-06-12 | 世林（漯河）冶金设备有限公司 | Furnace top bleeding valve with safety protection function |
| CN205504150U (en) * | 2016-04-25 | 2016-08-24 | 中冶华天南京工程技术有限公司 | But blast furnace top does not have counter weight pressure regulating with non - flip structure diffuses valve |
-
2016
- 2016-04-25 CN CN201610261169.1A patent/CN105736813B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158367A (en) * | 1976-04-12 | 1979-06-19 | S.A. Des Anciens Etablissements Paul Wurth | Valve system and improved actuator therefor |
| CN2622493Y (en) * | 2003-06-27 | 2004-06-30 | 韩晓东 | High-temp. dust gas releasing valve for liquid alloy multi-ving connecting vessel |
| CN2928861Y (en) * | 2006-07-28 | 2007-08-01 | 江阴兴澄特种钢铁有限公司 | Discharging valve system for blast furnace top gas |
| CN201447483U (en) * | 2009-06-29 | 2010-05-05 | 江苏神通阀门股份有限公司 | Gas relief valve |
| CN202001713U (en) * | 2011-02-24 | 2011-10-05 | 中冶华天工程技术有限公司 | Counterweight-free pressure-adjustable roof bleeding valve |
| CN103148259A (en) * | 2013-03-07 | 2013-06-12 | 世林（漯河）冶金设备有限公司 | Furnace top bleeding valve with safety protection function |
| CN205504150U (en) * | 2016-04-25 | 2016-08-24 | 中冶华天南京工程技术有限公司 | But blast furnace top does not have counter weight pressure regulating with non - flip structure diffuses valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114130758A (en) * | 2021-11-30 | 2022-03-04 | 广州市光裕汽车空调制造有限公司 | Automatic purging machine |
| CN114130758B (en) * | 2021-11-30 | 2023-11-03 | 广州市光裕汽车空调制造有限公司 | Automatic blowing machine |
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| Publication number | Publication date |
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| CN105736813B (en) | 2018-06-01 |
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