CN103277538A - Tee joint switching valve for smoke circulation of sintering machine - Google Patents
Tee joint switching valve for smoke circulation of sintering machine Download PDFInfo
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- CN103277538A CN103277538A CN2013101685660A CN201310168566A CN103277538A CN 103277538 A CN103277538 A CN 103277538A CN 2013101685660 A CN2013101685660 A CN 2013101685660A CN 201310168566 A CN201310168566 A CN 201310168566A CN 103277538 A CN103277538 A CN 103277538A
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- flue gas
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Abstract
The invention relates to a tee joint switching valve for smoke circulation of a sintering machine. The tee joint switching valve comprises a three-way pipe. Two valve bodies are connected at two outlets of the three-way pipe. Inlets of the two valve bodies are both provided with valve plate assemblies. Valve rods of the valve plate assemblies are connected with a pneumatic device assembly through respective connecting rod sets. The pneumatic device assembly is used for driving the valve plate assemblies to rotate around valve rod shafts. The two valve plate assemblies are respectively driven independently. The tee joint switching valve is applied to a smoke circulation system of a large-medium sized iron ore sintering machine.
Description
Technical field
The present invention relates to the switching valve technical field, particularly relate to a kind of three-way switch valve for the sintering device flue gas circulation.
Background technique
Sintering circuit is energy consumption and the disposal of pollutants rich and influential family of steel industry.In the residual heat resources that are not utilized effectively as yet, the sintered discharge gas waste heat is wherein main a kind of.During " 12 ", the recycle utilization of steel industry iron ore sintering machine high-temperature flue gas will be promoted successively.
The sintering device flue gas recycle utilization refers to: the sintering machine partial hot waste gas is re-introduced in the sintering process, when the elevated temperature heat flue gas cycles through sinter bed again, the high temperature sensible heat of flue gas is all supplied with sinter mixture, CO in the circulating flue gas rekindles, and reaches the effect of UTILIZATION OF VESIDUAL HEAT IN, saving sintering process energy consumption.In addition, organic pollutants such as the dioxin in the hot flue gas, PAHs, VOC are decomposed by fierceness during up to the sintering belt more than 1300 ℃ in by sinter bed, NOx also can significantly reduce the discharge amount of organic pollutants such as NOx, dioxin by thermolysis by partial destruction by the high temperature sintering band time.
The sintering device flue gas circulatory system needs supporting some three-way switch valves, three-way switch valve is installed on sintering machine wind box arm and the flue gas recirculation system arm, open and close by the Pneumatic actuator control valve, be used for the sinter fume arm and switch to the gas flow between flue gas recirculation system and sintering machine main flue channel.
In the prior art, a kind of novel three-way switching valve (number of patent application 201120320210.0), this patent is designed to: be provided with U-shaped otch at spool, by the angle that changes spool realize shunting commutation, block, the effect of throttling, but not mentioned high temperature, high negative pressure, dust loading, working condition such as wear-resisting, corrosion-resistant.Also have a kind of three-way switch valve device (number of patent application 201120374918.4), this patent relates to a kind of for the three-way switch valve device on the High Temperature High Pressure fondant filter, does not switch but this device is suitable for flue gas.
Summary of the invention
Technical problem to be solved by this invention provides a kind of three-way switch valve for the sintering device flue gas circulation, applicable to the flue gas recirculation system of big-and-middle-sized iron ore sintering machine.
The technical solution adopted for the present invention to solve the technical problems is: a kind of three-way switch valve for the sintering device flue gas circulation is provided, comprise three-way pipe, two outlet ports of described three-way pipe are connected with two valve bodies, the ingress of described two valve bodies is equipped with the valve plate assembly parts, and the stem shaft of described valve plate assembly parts links to each other with the Pneumatic actuator assembly parts by connection rod set separately; Described Pneumatic actuator assembly parts is used for driving described valve plate assembly parts and rotates around stem shaft; Described two valve plate assembly parties drive separately respectively.
Described Pneumatic actuator assembly parts comprises the cylinder that is installed on the cylinder block, and the piston rod of described cylinder links to each other by the stem shaft of connection rod set with described valve plate assembly parts; Described cylinder can rotate around installation.
The piston rod of described cylinder is provided with spring bumper.
The piston rod of described cylinder and the joint of connection rod set are provided with self-locking device, and described self-locking device is used for making the valve plate assembly parts to keep fixed pose.
Also be provided with manual linking mechanism on the described connection rod set.
The inboard of described valve body is provided with liner plate.
Beneficial effect
Owing to adopted above-mentioned technological scheme, the present invention compared with prior art, have following advantage and good effect: the present invention has installed two airtight butterfly valves in the three-way pipe bottom, two butterfly valve valve rods connect by connecting rod, two butterfly valve original states are one closes, another unlatching, and wherein a deck valve family of power and influence bar connects drive unit, along with drive unit drives two deck valve door alternate conduction, reached the purpose that changes flue gas flow direction.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is plan view of the present invention;
Fig. 3 is place of the present invention sintering device flue gas circulatory system schematic representation.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiments only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiments of the present invention relate to a kind of three-way switch valve for the sintering device flue gas circulation, as Fig. 1 and Fig. 2, comprise three-way pipe 1, two outlet ports of described three-way pipe 1 are connected with two valve bodies 2, the ingress of described two valve bodies 2 is equipped with valve plate assembly parts 3, and the stem shaft of described valve plate assembly parts 3 links to each other with Pneumatic actuator assembly parts 5 by connection rod set 4 separately; Described Pneumatic actuator assembly parts 5 is used for driving described valve plate assembly parts 3 and rotates around stem shaft; Described two valve plate assembly parties 3 drive separately respectively.
Fig. 3 is the position of the place of the present invention sintering device flue gas circulatory system.The sintering device flue gas circulatory system comprises sintering machine body 11, flue gas recirculation system 12, flue gas ash removal, desulfurization and releasing system 14, circulating flue gas enters bellows and the corresponding flue gas recirculation fan housing 15 that the sintering machine cigarette is used, three-way switch valve 13 of the present invention can symmetry be installed in sintering machine body 11 end to end on some bellows 15 arms, its function is the changeable flow direction of bellows flue gas: both can enter the flue gas recirculation system, and also can advance main flue channel, and be used for regulating air quantity and the temperature that enters the flue gas recirculation system.The present invention adopts high temperature resistant design, and 400 ℃ of flue gas maximum temperatures, withstand voltage-21000Pa, the leak-down rate of valve housing are zero, and valve internal leakage rate is＜1%.
Described Pneumatic actuator assembly parts 5 comprises the cylinder 6 that is installed on the cylinder block, and the piston rod of described cylinder 6 links to each other with the stem shaft of described valve plate assembly parts 3 by connection rod set 4; Described cylinder 6 can rotate around installation.The piston rod of described cylinder 6 is provided with spring bumper 7.
The present invention can realize distant control and automation mechanized operation, also is provided with manual linking mechanism 9 on the described connection rod set, has manual tune switching function (band handwheel) simultaneously, flexible operation mode.
The present invention adopts rectangle valve, flange-type, external, the vertical installation of bearing, and the threeway cross section is square, the total height after the device assembles is less than 3.5 meters.Design is succinct, compact structure, and installing space is little.
Stem shaft of the present invention is welded to connect with the valve plate employing through quenching with Subsequent tempering, and weld seam is level and smooth.The valve plate material adopts the Q235 steel plate to make, and thickness is greater than 16mm.The high chrome high-nickel alloy (overlay cladding thickness 〉=δ 8, hardness HRC 〉=62, Cr content 〉=25%) that the built-up welding of valve plate windward side is high temperature resistant, anticorrosion, wear-resisting.The valve body material adopts the Q235 steel plate to make, and thickness is greater than 10mm.Valve inner is all inlayed high chrome cast iron lining plate 10 for other three except the valve plate leeward side.
Two valve plate assembly parties 3 are set on the valve of the present invention, drive separately respectively, drive unit respectively arranges one in the both sides of valve, prevents from interfering between the drive unit.
Self-locking device 8 is set on the valve of the present invention, when the valve plate closed condition, relies on self-locking device 8 to make valve plate keep fixed pose and can not produce valve plate because of pipe negative pressure and move.Three-way switch valve guarantees tightness, does not go here and there wind under working pressure.Adopt flange to connect between valve, the threeway section, flange thickness 16mm arranges abrasion-proof backing block in the tee branch.
Be not difficult to find, the present invention is directed to special operation condition condition specialized designs such as high temperature, high negative pressure, dust loading are big, wear-resisting, corrosion-resistant.Device structure intensity height, and design is succinct, compact structure, and installing space is little, operation, easy to maintenance.
Claims (6)
1. one kind is used for the three-way switch valve that sintering device flue gas circulates, comprise three-way pipe (1), two outlet ports of described three-way pipe (1) are connected with two valve bodies (2), it is characterized in that, the ingress of described two valve bodies (2) is equipped with valve plate assembly parts (3), and the stem shaft of described valve plate assembly parts (3) links to each other with Pneumatic actuator assembly parts (5) by connection rod set (4) separately; Described Pneumatic actuator assembly parts (5) is used for driving described valve plate assembly parts (3) and rotates around stem shaft; Described two valve plate assembly parties (3) drive separately respectively.
2. the three-way switch valve for sintering device flue gas circulation according to claim 1, it is characterized in that, described Pneumatic actuator assembly parts (5) comprises the cylinder (6) that is installed on the cylinder block, and the piston rod of described cylinder (6) links to each other with the stem shaft of described valve plate assembly parts (3) by connection rod set (4); Described cylinder (6) can rotate around installation.
3. the three-way switch valve for the sintering device flue gas circulation according to claim 2 is characterized in that the piston rod of described cylinder (6) is provided with spring bumper (7).
4. the three-way switch valve for sintering device flue gas circulation according to claim 2, it is characterized in that, the joint of the piston rod of described cylinder (6) and connection rod set (4) is provided with self-locking device (8), and described self-locking device (8) is used for making the valve plate assembly parts to keep fixed pose.
5. the three-way switch valve for the sintering device flue gas circulation according to claim 1 is characterized in that, also is provided with manual linking mechanism (9) on the described connection rod set (4).
6. the three-way switch valve for the sintering device flue gas circulation according to claim 1 is characterized in that the inboard of described valve body (2) is provided with liner plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101685660A CN103277538A (en) | 2013-05-08 | 2013-05-08 | Tee joint switching valve for smoke circulation of sintering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101685660A CN103277538A (en) | 2013-05-08 | 2013-05-08 | Tee joint switching valve for smoke circulation of sintering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277538A true CN103277538A (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101685660A Pending CN103277538A (en) | 2013-05-08 | 2013-05-08 | Tee joint switching valve for smoke circulation of sintering machine |
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| CN (1) | CN103277538A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899788A (en) * | 2014-03-11 | 2014-07-02 | 哈尔滨工程大学 | Pneumatic type automatic control three-way valve |
| CN104455505A (en) * | 2014-10-30 | 2015-03-25 | 攀枝花市仁通钒业有限公司 | Discharge valve for material mixing blender |
| CN110864156A (en) * | 2019-11-29 | 2020-03-06 | 王荥 | Flue gas switching valve |
| CN112780798A (en) * | 2021-01-27 | 2021-05-11 | 北京中冶设备研究设计总院有限公司 | Three-way air intake reversing device applied to sintering flue gas circulation air box vertical pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989732Y (en) * | 2006-12-29 | 2007-12-12 | 中冶长天国际工程有限责任公司 | Sintering machine bellows branch pipe |
| CN201289314Y (en) * | 2008-10-14 | 2009-08-12 | 中国船舶重工集团公司第七○三研究所 | System for recirculating outlet flue gas of sintering device exhaust-heat boiler |
| CN102095526A (en) * | 2011-01-30 | 2011-06-15 | 中南大学 | Method for predicating gas temperature of circular cooler based on sintering heat loss calculation |
-
2013
- 2013-05-08 CN CN2013101685660A patent/CN103277538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989732Y (en) * | 2006-12-29 | 2007-12-12 | 中冶长天国际工程有限责任公司 | Sintering machine bellows branch pipe |
| CN201289314Y (en) * | 2008-10-14 | 2009-08-12 | 中国船舶重工集团公司第七○三研究所 | System for recirculating outlet flue gas of sintering device exhaust-heat boiler |
| CN102095526A (en) * | 2011-01-30 | 2011-06-15 | 中南大学 | Method for predicating gas temperature of circular cooler based on sintering heat loss calculation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899788A (en) * | 2014-03-11 | 2014-07-02 | 哈尔滨工程大学 | Pneumatic type automatic control three-way valve |
| CN103899788B (en) * | 2014-03-11 | 2016-08-17 | 哈尔滨工程大学 | Pneumatic type automatic control tee valve door |
| CN104455505A (en) * | 2014-10-30 | 2015-03-25 | 攀枝花市仁通钒业有限公司 | Discharge valve for material mixing blender |
| CN110864156A (en) * | 2019-11-29 | 2020-03-06 | 王荥 | Flue gas switching valve |
| CN112780798A (en) * | 2021-01-27 | 2021-05-11 | 北京中冶设备研究设计总院有限公司 | Three-way air intake reversing device applied to sintering flue gas circulation air box vertical pipe |
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Application publication date: 20130904 |