CN103421918B - Hot blast valve - Google Patents
Hot blast valve Download PDFInfo
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- CN103421918B CN103421918B CN201210148082.5A CN201210148082A CN103421918B CN 103421918 B CN103421918 B CN 103421918B CN 201210148082 A CN201210148082 A CN 201210148082A CN 103421918 B CN103421918 B CN 103421918B
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Abstract
The invention discloses a hot blast valve used for hot blast branch pipelines of a hot blast furnace. The hot blast valve comprises a valve cover, a valve plate and a valve body. The valve cover comprises two large valve cover side plates which are oppositely and longitudinally disposed, a top plate connected to the top ends of the two large valve cover side plates and two small valve cover side plates which are respectively connected to the two sides of the two large valve cover side plates. The large valve cover side plates, the top plate and the small valve cover side plates are respectively a single-layered steel plate. A first square flange is disposed at the lower ends of the two large valve cover side plates. The two large valve cover side plates, the top plate and the two small valve cover side plates are enclosed together for forming of a space with a lower opening, and the space is used for accomodating the valve plate. Fireproof materials are disposed on the inner sides of the two large valve cover side plates, the inner sides of the top plate and the inner sides of the two small valve cover side plates. A plurality of reinforcing plates are disposed on the outer sides of the two large valve cover side plates. The hot blast valve is high in overall rigidity, thermal resistance and fatigue durability, long in service lift, and capable of lowering consumption and temperature rise of cooling water.
Description
Technical field
The present invention relates to a kind of valve, particularly relate to a kind of hot blast valve, belong to the high temperature valve field be applied on metallurgical pipeline.
Background technology
Hot blast valve is requisite equipment in blast funnace hot blast stove pipeline.In blast furnace ironmaking, all hot blasts being sent to blast furnace all will through hot blast valve.At hotblast stove on air, hot blast valve is opened, and in the Combustion of Hot Air Furnace phase, hot blast valve cuts out, and hotblast stove and hot air duct are kept apart.Hot blast valve bears thermal convection, thermal radiation for a long time, temperatures as high 1200 DEG C ~ 1450 DEG C, is one of worst equipment of Working environment in blast-furnace equipment, and the temperature of superelevation makes hot blast valve could normally must be worked by cooling.Meanwhile, special Working environment causes that hot blast valve structural volume is large, weight is large, needs to consume a large amount of water coolants, and the layout of cooling water channel directly affects the life-span of hot blast valve.Meanwhile, water quench hot blast valve can take away amount of heat, causes energy dissipation.Therefore reduce hot blast valve volume, weight reduction, reduction cooling-water consumption, saving resource, improve the hot blast valve life-span, for the development of energy conservation, blast furnace system, particularly important.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of integral rigidity is strong, high-temperature capability and resistance to fatigue is high, long service life, and can reduce the consumption of water coolant and the hot blast valve of temperature rise.
In order to solve the problems of the technologies described above, present invention employs following technical scheme: a kind of hot blast valve, for the hot blast manifold road of hotblast stove, comprise valve gap, valve plate and valve body, described valve gap comprises two pieces relatively and the large side plate of valve gap longitudinally arranged, be connected to the horizontally disposed top board of two pieces of described valve gap large side plate upper ends and be connected to two blocks of little side plates of valve gap of two pieces of described valve gap large side plate both sides, and the upper end of two blocks of described little side plates is all connected with described top board; The large side plate of described valve gap, top board and the little side plate of valve gap are individual layer steel plate; Two blocks of large side plates of described valve gap arrange with the lower end of little side plate the first party flange being used for being connected with the upper end of described valve body; Two blocks of large side plates of described valve gap, top board and two blocks of little side plates of valve gap surround for accommodating described valve plate and the space that lower end is uncovered; The inner side of two blocks of large side plates of described valve gap, top board and two blocks of little side plates of valve gap all arranges refractory materials, the multiple gusset of arranged outside of two blocks of large side plates of described valve gap.
As preferably, the spacing of adjacent two the described gussets on the large side plate of valve gap described in every block is equal and be horizontally disposed with, and the outside surface of described gusset covers more than 2/3 of the outside surface of the large side plate of described valve gap.
As preferably, the cross section of described gusset is I-shaped or square hollow or rectangular hollow.
As preferably; described valve plate comprises valve plate body; the spiral water channel being used for water coolant circulation is set in described valve plate body; described valve plate body is towards a side cast high-strength light refractory materials of described hotblast stove; described valve plate body is towards matter high-strength refractory material in a side cast in hot blast main pipe road; the positive lower end of described valve plate body is provided with the protection block protruding from described valve plate body downwards; described protection block adopts high temperature material to make, the outside surface spraying high temperature insulation layer of described protection block.
As preferably, described valve plate body comprises the identical valve plate side plate of two block structures of corresponding setting, towards the valve plate side plate of described hotblast stove outside surface upper described in high-strength light refractory materials, towards the valve plate side plate in described hot blast main pipe road outside surface upper described in matter high-strength refractory material.
As preferably, the outer rim of two blocks of described valve plate side plates arranges and forms hydrosphere in water channel space for making between two blocks of valve plate side plates, described interior hydrosphere protrudes from the outside surface of two blocks of described valve plate side plates, outside described interior hydrosphere, outer hydrosphere is set, the outer water channel around two pieces of described valve plate side plate outer rims is formed between described interior hydrosphere and outer hydrosphere, form described spiral water channel by dividing plate between two blocks of described valve plate side plates, the water inlet be communicated with described outer water channel and the water outlet be communicated with described spiral water channel are offered in the top of described valve plate body.
As preferably, described protection block by the both sides from described outer hydrosphere to downward-extension and two swash plates intersected form.
As preferably, the sealing-ring that described valve body comprises left flange, right flange, coaming plate, side have the annular of first ring connected in star and the transition piece of open at both ends for being connected with valve gap,
Described transition piece is surrounded by the two blocks of large side plates of valve body be oppositely arranged and the two blocks of little side plates of valve body be oppositely arranged, one end of described transition piece is coupling end, the other end is transitioning end, the two blocks of large side plates of described valve body being positioned at described transitioning end are concordant with the end face of two blocks of little side plates of valve body, and described transitioning end is connected with the second party flange for the first party Flange joint with described valve gap;
The side that described left flange is relative with right flange offers the second annular recesses near inner edge place, and described left flange connects described sealing-ring, and described first ring connected in star and described second annular recesses connect the airtight annular water chamber of formation one;
Described right flange is a round flange, and the internal diameter of described right flange is greater than described left flange;
Described coaming plate comprises annulus section and the semicircle segmental arc of formation that stretches out from lower part of described annulus section side, the outer rim of described semicircle segmental arc is connected with the outside of described left flange, and described coaming plate is positioned at the outside of described sealing-ring, described annulus section is connected with the internal surface of described right flange; The two ends of described semicircle segmental arc are connected with the one end of the two blocks of little side plates of described valve body being positioned at described coupling end respectively, and one end of two blocks of large side plates of described valve body of described coupling end is connected with the annulus section of described left flange and described coaming plate respectively;
The annulus section internal surface of described coaming plate arranges reinforcement steel ring, and described reinforcement steel ring arranges the refractory masses for covering described reinforcement steel ring outward;
Described sealing-ring is solid forging structure, and the side that described first ring connected in star do not offered by described sealing-ring forms trim.
As preferably, the cross-sectional shape of described reinforcement steel ring is " ┙ ", and the internal diameter of described reinforcement steel ring is equal with the internal diameter of described left flange.
As preferably, described left flange comprises girth sheets two portions of round flange and annular, described girth sheets is arranged on the inner edge of described round flange side, and described round flange and described girth sheets are integral type solid forging, cast structure or described round flange and described girth sheets adopt welding process to link together.
As preferably, the equal applying of refractory material layer in inner side of the large side plate of described valve body, the little side plate of valve body, left flange, right flange and coaming plate, described sealing-ring is equal applying of refractory material layer except forming the outside surface at trim place, the outer surface high temperature insulation layer of described refractory masses or high temperature resistant wearing-resistant layer; Apply high temperature insulation layer and/or high-temperature resistant fiber layer between described large side plate, little side plate, left flange, right flange and coaming plate and coating described refractory masses thereon, the inner side of described large side plate, little side plate, left flange, right flange and coaming plate and the upper and lower sides of described sealing-ring arrange multiple high temperature alloy anchor nails respectively.
As preferably, hot blast valve of the present invention also comprises the drive unit driving described valve plate to move up and down to realize hot blast valve keying, described drive unit comprises and the synchronous operation identical with two of fixed support, crossbeam to drive described crossbeam thus two hydro-cylinders driving described valve rod and valve plate to move reciprocatingly, two described hydro-cylinders are fixed by described fixed support, and the piston rod of two described hydro-cylinders is connected with the two ends of described crossbeam respectively.
As preferably, the middle part of described crossbeam is provided with pull bar, described crossbeam is connected with described valve rod by described pull bar, also web plate is provided with between described pull bar and described valve rod, described drive unit also comprises tail rod, one end of described tail rod is fixedly connected with described crossbeam, and the described fixed support the other end be provided with for described tail rod passes and limits the orienting sleeve that described tail rod rocks.
Compared with prior art, the beneficial effect of hot blast valve of the present invention is:
1, the large side plate of the valve gap of hot blast valve of the present invention, top board and two blocks of little side plates of valve gap all adopt individual layer steel plate, and eliminate water coolant, thus save the electric energy of the water pump providing water coolant.Large size gusset is set outside valve gap, to strengthen rigidity and the heat radiation of valve gap.Compared with the mode simultaneously adding water coolant with the double-layer plate adopted in prior art, valve gap decreases weld seam quantity, thus reduces failure rate, substantially prolongs the work-ing life of valve gap and hot blast valve.
2, the valve plate of hot blast valve of the present invention adopts spiral water channel, and whole valve plate is cooled evenly.Pour into a mould the refractory materials of varying strength simultaneously in the two sides of valve plate respectively, in the work-ing life of balanced valve plate both sides refractory materials, extend the work-ing life of whole valve plate.And the cast in hot air duct can impact in the dirt discharge groove of hot blast valve by the protection block that valve plate bottom is arranged, and prevents the direct impact of cast and valve plate body, thus improve valve plate wind resistance scouring capability.
3, the trim of the sealing-ring of the valve body of hot blast valve of the present invention adopts solid forging structure, makes no-welding-seam on trim, strengthens hot erosion resistance, thus extends the work-ing life of valve body.Valve body sealing surface single-sided arrangement in addition, decreases an annular water chamber, in use just decreases an accident point (leaking).The annulus section internal surface of coaming plate arranges the reinforcement steel ring be surrounded by refractory masses, to ensure the rigidity without trim side, also can effectively prevent heat to the transmission of valve inner simultaneously.
4, the drive unit of hot blast valve of the present invention is owing to eliminating the mechanisms such as the support of counterweight, counterweight guide rod and support counterweight, only adopt the lifting of two Driven by Hydraulic Cylinder valve plates, thus make the weight saving of whole hot blast valve, also can save the support that the volume of original support counterweight is very large simultaneously, and only need be used for fixing the fixed support of the small volume of described hydro-cylinder, therefore substantially reduce the volume of whole hot blast valve, reduce the cost of whole hot blast valve and make hot blast valve be convenient to transport and installation and removal.
Accompanying drawing explanation
Fig. 1 is the part sectioned view of the front view of hot blast valve of the present invention;
Fig. 2 is the part sectioned view of the side-view of hot blast valve of the present invention;
Fig. 3 is the part sectioned view of the valve gap of hot blast valve of the present invention;
Fig. 4 is the another kind of part sectioned view of valve gap of hot blast valve of the present invention;
Fig. 5 is that the A-A of Fig. 3 is to fragmentary sectional view;
Fig. 6 is the external structure schematic diagram of hot air valve plate of the present invention;
Fig. 7 be Fig. 6 along being parallel to valve plate body side and cuing open figure through valve plate body central vertical section;
Fig. 8 is that the C-C of Fig. 6 is to cuing open figure;
Fig. 9 is the enlarged view of part B in Fig. 8;
Figure 10 is the sectional view of the axis of the round flange along valve body of the embodiment one of the valve body of hot blast valve of the present invention;
Figure 11 is the part sectioned view of edge perpendicular to the axis of the round flange of valve body of the embodiment one of the valve body of hot blast valve of the present invention;
Figure 12 is the sectional view of the axis of the round flange along valve body of the embodiment two of the valve body of hot blast valve of the present invention;
Figure 13 is the sectional view of the axis of the round flange along valve body of the embodiment three of the valve body of hot blast valve of the present invention;
Figure 14 is the perspective view of the second coaming plate of the embodiment three of the valve body of hot blast valve of the present invention;
Figure 15 is the perspective view in another direction of the second coaming plate of the embodiment three of the valve body of hot blast valve of the present invention
Figure 16 is the sectional view of the axis of the round flange along valve body of the embodiment four of the valve body of hot blast valve of the present invention;
Figure 17 is the part sectioned view of edge perpendicular to the axis of the round flange of valve body of the embodiment four of the valve body of hot blast valve of the present invention;
Figure 18 is the part sectioned view of edge perpendicular to the axis of the round flange of valve body of the embodiment five of the valve body of hot blast valve of the present invention;
Figure 19 is the front view of the drive unit of hot blast valve of the present invention;
Figure 20 is the side-view of the drive unit of hot blast valve of the present invention.
Description of reference numerals
100-valve body 200-valve gap
300-valve plate 400-drive unit
The spiral water channel of 1-valve plate body 2-
Matter high-strength refractory material in 3-high-strength light refractory materials 4-
5-protects block 6-valve plate side plate
The outer hydrosphere of hydrosphere 8-in 7-
Outer water channel 10-first water inlet of 9-
11-first water outlet 12-swash plate
13-cavity 14-high temperature insulation layer
15-anchor nails 16-dividing plate
17-is communicated with the mouth of a river
101-round flange 102-second party flange
103-girth sheets 104-first coaming plate
The large side plate of 105-sealing-ring 106-valve body
107-valve body little side plate 108-first ring connected in star
109-second annular recesses 110-annular water chamber
111-trim 112-second water-in
113-second water outlet 114-refractory masses
115-high temperature insulation layer 116-anchor nails
117-mudhole 118-space
119-strengthens steel ring 120-second coaming plate
121-annulus section 122-semicircle segmental arc
201-valve gap large side plate 202-top board
203-valve gap little side plate 204-first party flange
205-space 206-refractory materials
207-gusset 208-high temperature insulation layer
209-high-temperature fibre 210-anchor nails
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
As depicted in figs. 1 and 2, a kind of hot blast valve of the present invention, for the hot blast manifold road of hotblast stove, comprises valve gap 200, valve plate 300 and valve body 100.
As shown in Figure 3 and Figure 5, the valve gap 200 of hot blast valve of the present invention, comprise two pieces relatively and the upper end of the large side plate of valve gap 201 longitudinally arranged, the horizontally disposed top board 202 being connected to two pieces of valve gap large side plate 201 upper ends and the little side plate of two pieces of valve gaps 203, two blocks of little side plates 203 of valve gap of being connected to two pieces of valve gap large side plate 201 both sides be all connected with top board 202.The little side plate 203 of the large side plate of valve gap 201, top board 202 and valve gap is individual layer steel plate.The lower end of two blocks of large side plates 201 of valve gap arranges the first party flange 204 being used for being connected with the upper end of the valve body of hot blast valve.Two blocks of large side plates of valve gap 201, top board 202 and two blocks of little side plates of valve gap 203 surround for accommodating hot blast valve valve plate and the space 205 that lower end is uncovered.The inner side of two blocks of large side plates of valve gap 201, top board 202 and two blocks of little side plates 203 of valve gap all arranges refractory materials 206, the multiple gusset 207 of arranged outside of two blocks of large side plates of valve gap 201.Gusset 207 is preferably large size gusset, and the rigidity can strengthening valve gap plays again the effect of heat radiation.In order to play good heat radiation and really play the effect strengthening valve gap rigidity, as further some, the outside surface of gusset 207 covers more than 2/3 of the outside surface of the large side plate 201 of valve gap.And the spacing of adjacent two gussets 207 on every large side plate of block valve gap 201 is equal and be horizontally disposed with.
In order to make up the problem not arranging the heat radiation deficiency that water coolant causes, the cross section of the gusset 207 of the present embodiment is I-shaped, thus adds the outside surface of gusset 207, also just adds area of dissipation, makes the radiating effect of valve gap good.Certainly, the cross section of gusset 207 can be also square hollow or rectangular hollow, also has the effect increasing heat radiation.
The valve gap no-cooling-water of the hot blast valve of the present embodiment, therefore saves the electric energy of the water pump providing water coolant, it also avoid the appearance of seepy question.And cause calorific loss owing to not having water coolant to take away heat, hot blast is improved on year-on-year basis by wind-warm syndrome during hot blast valve.Other two blocks of large side plates of valve gap 201, top board 202 and two blocks of little side plates 203 of valve gap are individual layer steel plate, because this reducing weld seam quantity, reducing failure rate, substantially prolongs the work-ing life of valve gap and hot blast valve.
As shown in Figure 3, the large side plate 201 of two pieces of valve gaps in the present embodiment is rectangle, and two blocks of little side plates 203 of valve gap are arc.The design of the little side plate 203 of valve gap of arc has the following advantages: the setting being 1. easy to internal refractories 206; 2. increase the area of dissipation of valve gap outside surface, be conducive to reducing valve cover surfaces temperature, be also beneficial to hot blast valve repair and maintenance; 3. also can increase the installing space between top board 202 and the gear frame of hot blast valve in addition, be conducive to gear frame and install.
As shown in Figure 3 and Figure 5, as a kind of preferred version of the present embodiment, apply high temperature insulation layer 208 or high-temperature fibre 209 respectively between two blocks of large side plates of valve gap 201 and refractory materials 206, between top board 202 and refractory materials 206 and between two blocks of little side plates 203 of valve gap and refractory materials 206, also can apply high temperature insulation layer 208 and high-temperature fibre 209 simultaneously.The refractory materials 206 arranged in the present embodiment can be lightweight, also can be middle matter, and when adopting lightweight refractory, the inner side of the little side plate 203 of the large side plate of valve gap 201, top board 202 and valve gap is followed successively by high temperature insulation layer 208 and lightweight refractory.When adopt in fire resistant materials time, the inner side of the little side plate 203 of the large side plate of valve gap 201, top board 202 and valve gap is followed successively by high temperature insulation layer 208, high-temperature fibre 209 and lightweight refractory.
As shown in Figure 5, the present embodiment be wherein coated with high-temperature fibre 209 between one block of large side plate 201 of valve gap and refractory materials 206, be then coated with high temperature insulation layer 208 between the large side plate 201 of another block valve gap and refractory materials 206.As shown in Figure 3, high temperature insulation layer 208 is then coated with between the little side plate 203 of valve gap and refractory materials 206.
As the another kind of preferred version of the present embodiment, the inner side of two blocks of large side plates of valve gap 201, top board 202 and two blocks of little side plates of valve gap 203 arranges multiple anchor nails 210 for fixing refractory materials 206 respectively.Anchor nails 210, for grasping refractory materials 206, prevents refractory materials 206 from coming off.Anchor nails 210 adopts high temperature alloy to make, and effectively prevents coming off of the refractory materials 206 caused because of anchor nails 210 scaling loss, thus improves the ability of valve gap opposing thermal fatigue.
In addition; in the outside surface spraying high temperature insulation layer (not shown) of anchor nails 210; the heat transfer of the large side plate of the valve gap of effective prevention high-temperature hot-air to valve plate 201, top board 202, the little side plate 203 of valve gap and anchor nails 210; improve wind pushing temperature on year-on-year basis; protect valve gap, extend the work-ing life of valve gap.
In addition, as shown in Figure 4, two blocks of large side plates 201 of valve gap also can be rectangle, and two blocks of little side plates 203 of valve gap are also rectangle.The large side plate of valve gap 201, top board 202 and the little side plate of valve gap 203 define the uncovered cubes in a lower end.This structure of the large side plate of valve gap 201 and the little side plate of valve gap 203 facilitate hot blast valve blanking, group to and welding, and easy handling.
As shown in Figures 6 to 9, the valve plate of the hot blast valve of embodiments of the invention, comprise valve plate body 1, the spiral water channel 2 being used for water coolant circulation is set in valve plate body 1, valve plate body 1 is towards a side cast high-strength light refractory materials 3 of described hotblast stove, high-strength light refractory materials 3 refers to have lower density, has again the refractory materials of higher intensity.The heat-proof quality of high-strength light refractory materials 3 is good, and thermal shock resistance is good, difficult drop-off, long service life.Valve plate body 1 is towards matter high-strength refractory material 4 in a side cast in hot blast main pipe road.The intensity of middle matter high-strength refractory material 4 is high, and the erosion performance of resistance to hot blast fan high pressure is good, difficult drop-off, long service life.The refractory materials of the both sides cast different performance of valve plate body 1, the work-ing life of balanced valve plate body both sides refractory materials, thus extend the work-ing life of whole valve plate body 1.In addition, arranging of spiral water channel 2 can make whole valve plate body 1 cool evenly.
As shown in Figure 8, the outside surface that valve plate body 1 comprises the identical valve plate side plate of two block structures 6, two blocks of valve plate side plates 6 of corresponding setting pours into a mould high-strength light refractory materials 3 and middle matter high-strength refractory material 4 respectively.
As a kind of preferred version of the present embodiment, between the valve plate side plate 6 of high-strength light refractory materials 3 and its cast and between middle matter high-strength refractory material 4 and the valve plate side plate 6 of its cast, high temperature insulation layer 14 is set respectively.The outside surface of high-strength light refractory materials 3 and middle matter high-strength refractory material 4 can also spray high temperature insulation layer 14 respectively.Hot air valve plate of the present utility model is owing to have employed high-strength light refractory materials 3, middle matter high-strength refractory material 4 and high temperature insulation layer 14, prevent heat to the transmission of valve plate inner cooling water, the heat that water coolant is taken away reduces, so lacking of the temperature rising of water coolant, hot blast is improved on year-on-year basis by wind-warm syndrome during hot blast valve.What the temperature of water coolant raised lacks, and decreases the consumption of water coolant, thus saves the electric energy of the water pump providing water coolant.
As shown in Figure 7 and Figure 8, outer rim along two blocks of valve plate side plates 6 arranges and forms hydrosphere 7 in water channel space for making between two blocks of valve plate side plates 6, interior hydrosphere 7 protrudes from the outside surface of two blocks of valve plate side plates 6, outside interior hydrosphere 7, outer hydrosphere 8 is set, form the outer water channel 9 around two pieces of valve plate side plate 6 outer rims between interior hydrosphere 7 and outer hydrosphere 8, in outer water channel 9, also circulation has water coolant.Water channel space between two blocks of valve plate side plates 6 forms spiral water channel 2 by dividing plate 16, interior hydrosphere 7 offers the connection mouth of a river 17 that spiral water channel 2 is communicated with outer water channel 9.The first water inlet 10 be communicated with outer water channel 9 and the first water outlet 11 be communicated with spiral water channel 2 are offered in the top of valve plate body 1.Outer hydrosphere 8 adopts solid forging structure, and no-welding-seam on the trim making valve plate, valve in use more resistance to hot blast washes away, and the life-span extends relatively in the case of a high temperature.Weldless solid forging structure hot erosion resistance is strong.
Continue composition graphs 6 to Fig. 9, as the present embodiment further preferably, the positive lower end of valve plate body 1 is provided with the protection block 5 protruding from valve plate body 1 downwards.Hot blast valve is in general use, when there being cast in pipeline, cast is blown in the dirt discharge groove (not shown) of hot blast valve bottom by hot blast, and large cast jam can fall on dirt discharge groove, the lower end of valve plate is closed not in place, therefore hot blast valve cannot seal.User usually impacts downwards with valve plate, to make the lower end of valve plate smash cast, makes it to fall in dirt discharge groove.Valve plate can be made like this to deform for a long time, even weld cracking leaks, or trim damages.Therefore increase protection block 5 in the lower end of valve plate body 1, when impacting with valve plate, protection block 5 being directly hit downwards, avoiding the trim directly impacting valve plate.Also strengthen the scouring capability of valve plate heat resistanceheat resistant wind simultaneously.
Protection block 5 in the present embodiment adopts high temperature material, and adopts casting or welded construction.The outside surface spraying high temperature insulation layer (not shown) of protection block 5.As shown in Figure 8 and Figure 9, two swash plates 12 that the protection block 5 in the present embodiment also intersects to downward-extension by the both sides from outer hydrosphere 8 are formed, and surround cavity 13 between two swash plates 12 and outer hydrosphere 8.
As another preferred version of the present embodiment, interior hydrosphere 7 arranges multiple high temperature alloy anchor nails 15 respectively on the side and two blocks of valve plate side plates side outwardly of valve plate side plate 6.Anchor nails 15 plays the effect of fixing high-strength light refractory materials 3 or middle matter high-strength refractory material 4.Anchor nails 15 adopts high temperature alloy to make, can effectively prevent the high-strength light refractory materials 3 because anchor nails 15 scaling loss causes or middle matter high-strength refractory material 4 from coming off, the ability of Under Thermal Fatigue Damage resisted by the valve plate side plate 6 that improve valve plate, thus improves the work-ing life of valve plate
As the further preferred version of the present embodiment, the outside surface of anchor nails 15 also sprays high temperature insulation layer, effectively stops high-temperature hot-air to conduct heat to valve plate and anchor nails 15, improves wind pushing temperature on year-on-year basis, protection valve plate side plate 6, extends valve plate work-ing life.
Different embodiments is divided to describe in detail below in conjunction with the valve body of Figure 10 to Figure 18 to hot blast valve of the present invention:
Embodiment one:
As shown in Figure 10 and Figure 11, a kind of hot air valve body of embodiment one of the present utility model, comprises the left flange and right flange and the first coaming plate, two sealing-rings and transition piece that are oppositely arranged.Described left flange comprises the girth sheets 103 of round flange 101 and annular, and girth sheets 103 is connected to the inner edge place of round flange 101 side.The structure of described right flange is identical with the structure of described left flange.Described left flange is relative with the girth sheets 103 of right flange.Round flange 101 in the present embodiment one is integral type solid forging, cast structure with girth sheets 103.
Described transition piece is surrounded by the two blocks of large side plates of valve body 106 be oppositely arranged and the little side plate 107 of two pieces of valve bodies be oppositely arranged, the two ends of described transition piece are uncovered, one end of described transition piece is coupling end, the other end is transitioning end, the two blocks of large side plates of valve body 106 being positioned at described transitioning end are concordant with the end face of two blocks of little side plates of valve body 107, and described transitioning end is connected with the second party flange 102 for being connected with valve gap.
The opposite side of two girth sheets 103 of described left valve barrel and right valve barrel offers the second annular recesses 109 respectively near its inner rim place.Two sealing-rings 105 offer first ring connected in star 108 respectively, each girth sheets 103 connects respectively a sealing-ring 105, the annular water chamber 110 that formation one is airtight and first ring connected in star 108 and the second annular recesses 109 connect.Sealing-ring 105 is solid forging structure, and the side of first ring connected in star 108 do not offered by sealing-ring 105, and the side that namely two sealing-rings 105 are relative forms two trims 111 respectively.
Continue in conjunction with Figure 10 and Figure 11, first coaming plate 104 is arc and is arranged between described left flange and right flange for connecting described left and right flanges, and the first coaming plate 104 is positioned at the outside of sealing-ring 105, the two ends of the first coaming plate 104 are connected with the one end of the little side plate 107 of two pieces of valve bodies being positioned at described coupling end respectively, and one end of two blocks of large side plates of valve body 106 of described coupling end is connected with the girth sheets 103 of described left flange and right flange respectively.
Sealing-ring in embodiment one is solid forging structure, makes no-welding-seam on trim 111, and valve body in use more resistance to hot blast washes away, and the life-span extends relatively in the case of a high temperature.Weldless solid forging structure hot erosion resistance is stronger.
Trim 111 in embodiment one is bilateral layout, the rigidity of valve body is more easily ensured, high top pressure operation environment preferably, a trim 111 uses, another trim can emergency power (when hot blast blows from left to right, trim 111 and the valve plate on right side realize sealing, and when hot blast blows from right to left, trim 111 and the valve plate in left side realize sealing).Thus make hot blast valve realize dual face seals.
Round flange 101 in embodiment one both increases thickness with girth sheets 103, and round flange 101 is the integrated one-piece construction by solid forging or casting with girth sheets 103 simultaneously, adds the rigidity of hot air valve body of the present invention.
As shown in figure 11, hot air valve body of the present invention offering the second water-in 112 for supplying water in the annular water chamber 110 of hot air valve body of the present invention, valve body also offering the second water outlet 113 simultaneously.The second water-in 112 in the present embodiment and the second water outlet 113 are all arranged on the middle part of valve body.The middle part that second water-in 112 and the second water outlet 113 are arranged on valve body facilitates connection and the layout of cooling water system, also effectively can ensure that water coolant is full of whole annular water chamber 110 simultaneously, the usefulness of water coolant is fully used, ensure good cooling performance, and then increase the work-ing life of valve body.
In embodiment one, in order to provide high-temperature capability and the heat-resistant anti-fatigue performance of valve body further, to extend the work-ing life of valve body.Preferably, the equal applying of refractory material layer 114 in inner side of the large side plate of valve body 106, the little side plate of valve body 107, round flange 101, girth sheets 103 and the first coaming plate 104, sealing-ring 105 except the outer also equal applying of refractory material layer 114 of the outside surface forming trim 111 place, the outer surface high temperature insulation layer 115 of refractory masses 114 or high temperature resistant wearing-resistant layer.
As further preferably, between the little side plate 107 of the large side plate of valve body 106, valve body, round flange 101, girth sheets 103 and the first coaming plate 104 and coating refractory masses 114 thereon, also apply high temperature insulation layer 115 and/or high-temperature resistant fiber layer.As when the temperature height of hot blast, high temperature insulation layer 115 and high-temperature resistant fiber layer use simultaneously, and when hot blast temperature is slightly low, high temperature insulation layer 115 and high-temperature resistant fiber layer can optional one.
Refractory masses 114 can select lightweight refractory layer, also can select middle fire resistant materials layer, also can be two kinds combinationally use.When during refractory masses 114 adopts during fire resistant materials layer, the inner side of the large side plate of valve body 106, the little side plate of valve body 107, round flange 101, girth sheets 103 and the first coaming plate 104 applies high temperature insulation layer 115, high-temperature fibre and middle fire resistant materials layer respectively successively.When refractory masses 114 is lightweight refractory layer, the inner side of the large side plate of valve body 106, the little side plate of valve body 107, round flange 101, girth sheets 103 and the first coaming plate 104 applies high-temperature resistant fiber layer, lightweight refractory layer and high temperature resistant wearing-resistant layer respectively successively.When refractory masses 114 selects the combination of middle fire resistant materials layer and lightweight refractory layer, the inner side of the large side plate of valve body 106, the little side plate of valve body 107, round flange 101, girth sheets 103 and the first coaming plate 104 applies high temperature insulation layer 115, lightweight refractory layer and middle fire resistant materials layer respectively successively, and the Thickness Ratio of wherein said lightweight refractory layer and middle fire resistant materials layer is 1: 2.
In the bottom of valve body, the center, bottom of the first coaming plate 104 offers mudhole 117, and the inwall of mudhole 117 is coated with refractory masses.The space 118 for accommodating valve plate (not shown) formed between mudhole 117 with two round flanges 101 is connected.The cross section of mudhole 117 both can be circular port can be also square opening, and the mudhole 117 shown in figure is circular port.The object that mudhole 117 is arranged is for making the refuses such as the refractory masses 114 that comes off from pipeline or valve interior wall face or valve plate wall discharge.
In embodiment one, the use of refractory masses 114, high temperature insulation layer 115, high-temperature resistant fiber layer and high temperature resistant wearing-resistant layer, can provide high-temperature capability and the thermal fatigue resistance of valve body, thus extends the work-ing life of valve body.Also heat can be stoped to the transmission of valve inner, what the temperature of the water coolant in annular water chamber 110 was raised lacks simultaneously, when ensureing that valve body cooling water temperature rise is constant, reduces the consumption of water coolant, the same work-ing life ensureing valve body.Therefore the consumption decreasing water coolant saves the electric energy of the water pump providing water coolant.In addition, according to heat energy formula Q=Cm △ t, what the temperature due to water coolant raised lacks, and just decreases the heat that water coolant is taken away.And these heats are provided by hot blast.The temperature calculating hot blast is conversely fallen, and when Q reduces, C, m are constant, and △ t is just little.Therefore, hot blast is made to be improved on year-on-year basis by wind-warm syndrome during hot blast valve.
As shown in figure 11, the large side plate of valve body 106, the little side plate of valve body 107, round flange 101, girth sheets 103 and the inner side of the first coaming plate 104 and the upper and lower sides of sealing-ring 105 arrange the anchor nails 116 of multiple high temperature alloy for fixing refractory masses 114 respectively.Anchor nails 116 plays fixing refractory masses 114 and prevents it from coming off.Anchor nails 116 adopts high temperature alloy material effectively to prevent coming off of the refractory masses 114 caused because of anchor nails 116 scaling loss, thus improves the ability of valve body opposing Under Thermal Fatigue Damage.
As further preferred version, the outside surface spraying high temperature insulation layer 115 of anchor nails 116.Effective prevention high-temperature hot-air, to the heat transfer of the large side plate of valve body 106, the little side plate 107 of valve body, round flange 101, girth sheets 103, first coaming plate 104 and anchor nails 116, improves wind pushing temperature simultaneously, and protection valve body, improves the work-ing life of valve body.
Embodiment two:
As shown in figure 12, in embodiment two, round flange 101 adopts the mode of welding to link together with girth sheets 103, but not integral structure.And the second water-in 112 and the second water outlet 113 are all arranged on the bottom of valve body, the bottom that second water-in 112 and the second water outlet 113 are arranged on valve body facilitates connection and the layout of cooling water system, also effectively can ensure that water coolant is full of whole annular water chamber 110(and 110,112,113 does not all indicate in fig. 12) simultaneously, the usefulness of water coolant is fully used, ensure good cooling performance, and then extend the work-ing life of valve body.
Except above-mentioned 2 differences, the structure of other parts of embodiment two is identical with embodiment one.Do not repeat them here.
Embodiment three:
As shown in figure 13, embodiment three is with the maximum difference of embodiment one: embodiment three is single-side sealing, and embodiment one is two-side sealing.Namely the present embodiment three is provided with a trim 111, and embodiment is provided with two trims 111 first.Thus also just result in the difference of valve body structure in two embodiments.
As shown in figure 13, the sealing-ring 105 that the hot air valve body of the present embodiment three comprises left flange, right flange, the second coaming plate 120, have first ring connected in star 108 and the transition piece of open at both ends for being connected with valve gap.Described left flange side, the structure namely arranging the valve body of trim 111 side is substantially identical with embodiment one, namely comprises the sealing-ring 105 on the described left flange be made up of round flange 101 and girth sheets 103 and the girth sheets 103 being arranged on described left flange.Round flange 101 and girth sheets 103 are integral type structure.Girth sheets 103 offers the second annular recesses 109, first ring connected in star 108 docks the airtight annular water chamber of formation one with the second annular recesses 109.And opposite side is owing to eliminating trim 111, also just eliminate sealing-ring 105 and girth sheets 103, and described right flange is also different from the structure of left flange, described right flange is a round flange, and the internal diameter of described right flange is greater than described left flange.
The structure of the second coaming plate 120 in the present embodiment three is also different from embodiment one, as shown in Figure 14 and Figure 15, second coaming plate 120 comprises annulus section 121 and the semicircle segmental arc 122 of formation that stretches out from lower part of annulus section 121 side, the outer rim of semicircle segmental arc 122 is connected with the outside (namely the outside of coaming plate 103) of described left flange, and the second coaming plate 120 is positioned at the outside of sealing-ring 105.Annulus section 121 is connected with the internal surface of described right flange, and in the present embodiment, a part for annulus section 121 has extend in described right flange and has been connected with the internal surface of right flange.The two ends of semicircle segmental arc 122 are connected with the one end of the little side plate 107 of two pieces of valve bodies being positioned at described coupling end respectively, and one end of two blocks of large side plates of valve body 106 of described coupling end is connected with the annulus section 121 of described left flange and the second coaming plate 120 respectively.
In order to strengthen the strength and stiffness not arranging trim 111 and girth sheets 103 side (i.e. right side), as shown in figure 13, the internal surface of the annulus section 121 of the second coaming plate 120 being arranged and strengthens steel ring 119, strengthening the outer refractory masses 114 arranged for covering reinforcement steel ring 119 of steel 119.Strengthen the anchor nails 116 steel ring 114 being arranged respectively multiple high temperature alloy for fixing refractory masses 114.
As a kind of preferred version of the present embodiment, as shown in figure 13, the cross-sectional shape strengthening steel ring 119 is
the internal diameter strengthening steel ring 119 is equal with the internal diameter of described left flange.While the strength and stiffness of guarantee right side, to make reinforcement steel ring 119 pairs of one-piece constructions not impact.Mudhole 117 is offered in center, the bottom of the second coaming plate 120.Applying of refractory material layer on the inwall of mudhole 117.The space 118 for accommodating valve plate (not shown) formed between mudhole 117 with two round flanges 101 is connected.The cross section of mudhole 117 both can be circular port also can be square opening, and as shown in Figure 5 and Figure 6, the mudhole 117 shown in figure is circular port.The object that mudhole 117 is arranged is for making the refuses such as the refractory masses 114 that comes off from pipeline or valve interior wall face or valve plate wall discharge.
Trim 111 is one-sided when arranging, and owing to having lacked a trim 111, has also lacked an annular water chamber 110, in use decreases an accident point (many annular water chambers 110 are many twice weld seam just, just many places that may leak).
Embodiment four:
As shown in Figure 16 and Figure 17, embodiment four is substantially identical with embodiment three, be all single-side sealing, both differences are only to form that the girth sheets 103 of described left flange is different from the mode of connection of round flange 101 and the second water-in 112 is different with the setting position of the second water outlet 113 on valve body.In embodiment four, girth sheets 103 and round flange 101 are for adopt welding process to link together, but not integral structure.In the present embodiment four, the second water-in 112 and the second water outlet 113 all arrange the bottom of valve body, the bottom that second water-in 112 and the second water outlet 113 are arranged on valve body facilitates connection and the layout of cooling water system, also effectively can ensure that water coolant is full of whole annular water chamber 110 simultaneously, the usefulness of water coolant is fully used, ensure good cooling performance, and then extend the work-ing life of valve body.
Embodiment five:
As shown in figure 18, embodiment five and the difference of embodiment one are only that the second water-in 112 is different with the setting position of the second water outlet 113 on valve body.In the present embodiment five, the second water-in 112 is arranged on the bottom of valve body, and the second water outlet 113 is arranged on the top of valve body, and the cooling performance of this setup is best.
In addition, hot blast valve of the present invention also comprises the drive unit 400 driving described valve plate to move up and down to realize hot blast valve keying, drive unit 400 comprises fixed support 403 and crossbeam 405, crossbeam 405 is connected with valve plate 100 by valve rod 408, fixed support 403 is fixedly connected with valve gap 200, fixed support 403 is provided with the identical and hydro-cylinder 402 of synchronous operation of two of driving crossbeam 405 thus actuate valve stem 408 to drive valve plate 300 to move reciprocatingly, the piston rod 404 of two hydro-cylinders 402 is connected with crossbeam 405 respectively, in the present embodiment, crossbeam 405 is grown up strip, the piston rod 404 of two hydro-cylinders 402 is connected with the two ends of crossbeam 405 respectively.Under hot blast valve closing condition, the piston rod 404 of two hydro-cylinders 402 contracts in the cylinder body of hydro-cylinder 402, and valve plate 300 blocks hot air duct.In the present embodiment, in order to make the synchronous operation of two hydro-cylinders 402, two hydro-cylinders 402 adopt same starter gear to control, opening this starter gear can make two hydro-cylinders 402 start simultaneously, the piston rod 404 of two hydro-cylinders 402 synchronously stretches out, and promotes crossbeam 405 and moves upward, thus promote connected valve rod 408 and move upward, and then drive valve plate 300 to move upward, hot blast valve is opened.When closing hot blast valve, primer fluid cylinder pressure 2 makes in piston rod 404 retract cylinder of hydro-cylinder 402, and piston rod 404 drives crossbeam 405 thus drives valve plate 300 to move downward, and is blocked by hot air duct.This drive unit, owing to eliminating counterweight, make drive unit thus also make the weight saving of whole hot blast valve, also can save the support that the volume of original support counterweight is very large simultaneously, and only need be used for fixing the fixed support 403 of the small volume of hydro-cylinder 402, therefore substantially reduce the volume of whole hot blast valve, reduce the cost of whole hot blast valve and make hot blast valve be convenient to transport and installation and removal.
In the above-described embodiments, the middle part of crossbeam 405 can be provided with pull bar 406, and crossbeam 405 is connected with valve rod 408 by pull bar 406.Also be provided with middle connecting plate 407 between pull bar 406 and valve rod 408, pull bar 406 valve rod 408 is all connected with middle connecting plate 407.Fixed support 403 is provided with orienting sleeve 410, orienting sleeve 410 is the long cover of a circle, arrange perpendicular to horizontal plane, being equipped with in orienting sleeve 410 can perpendicular to the tail rod 409 that horizontal plane slides in orienting sleeve 410, tail rod 409 is the shaft-like of circle, the upper end of tail rod 409 is connected with crossbeam 405 fixed vertical, and synchronously move up and down with valve rod 408 and valve plate 300 under the drive of crossbeam 405, prevent crossbeam 405 from producing to rock in the horizontal direction in moving process valve rod 408 and valve plate 300 are rocked or deflection.
In the above-described embodiments, tail rod 409 also can be provided with the first inductor block 413 and the second inductor block 414, in the present embodiment, the first inductor block 413 is positioned at the top of the second inductor block 414.Fixed support 403 is provided with in tail rod 409 moving process, to respond to the first inductor block 413 and sending to hydro-cylinder 402 when sensing the first inductor block 413 and makes the first limit switch 411 of hydro-cylinder 402 signal out of service and induction the second inductor block 414 and the second limit switch 412 sending the signal making hydro-cylinder 402 out of service when sensing the second inductor block 414 to hydro-cylinder 402.Open at described hot blast valve, to open or just in closing process, the position of the first inductor block 413 is all higher than the position of the first limit switch 411.Described hot blast valve close put in place time, the position of the first inductor block 413 and the position of the first limit switch 411 contour, now the first limit switch 411 senses the first inductor block 413, and sends the signal making hydro-cylinder 402 out of service to hydro-cylinder 402.Second inductor block 414 is positioned at the bottom of tail rod 409, close at described hot blast valve, when opening or closing, the position of the second inductor block 414 is lower than the position of the second limit switch 412, when described hot blast valve open put in place time, the position of the second inductor block 414 and the position of the second limit switch 412 contour, now the second limit switch 412 senses the second inductor block 414 and sends the signal making hydro-cylinder 402 out of service to hydro-cylinder 402.First limit switch 411 is connected with the starter gear of hydro-cylinder 402 with the second limit switch 412.Open starter gear, the piston rod 404 of two hydro-cylinders 402 stretches out, promote crossbeam 405 to move upward, crossbeam 405 drives tail rod 409 to be synchronized with the movement, when the second limit switch 412 senses the second inductor block 414, the starter gear to hydro-cylinder 402 sends shutdown signal, makes hydro-cylinder 402 out of service, now, the position of valve plate 300 makes described hot blast valve open to put in place.When closing hot blast valve, the piston rod 404 of hydro-cylinder 402 is retracted in the cylinder body of hydro-cylinder 402, crossbeam 405 is driven to move downward, crossbeam 405 drives tail rod 409 synchronously to move downward, shutdown signal is sent to hydro-cylinder 402 when the first limit switch 411 senses the first inductor block 413, piston rod 404 stop motion of hydro-cylinder, now, the position of valve plate 300 makes the closedown of described hot blast valve put in place.The configuration achieves the automatic precision that valve plate 300 opens and closes position and determine position, with estimate valve plate 300 in prior art and open and close position and manually operated structure is compared, registration, can prevent from opening and closing the generation that the pipeline caused not in place is not smooth or leak.
In the above-described embodiments, the first limit switch 411 and the second position of limit switch 412 on fixed support 3 can regulate by the stroke required for valve plate.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (12)
1. a hot blast valve, for the hot blast manifold road of hotblast stove, it is characterized in that, comprise valve gap, valve plate and valve body, described valve gap comprises two pieces relatively and the large side plate of valve gap longitudinally arranged, be connected to the horizontally disposed top board of two pieces of described valve gap large side plate upper ends and be connected to two blocks of little side plates of valve gap of two pieces of described valve gap large side plate both sides, and the upper end of two blocks of described little side plates is all connected with described top board; The large side plate of described valve gap, top board and the little side plate of valve gap are individual layer steel plate; Two blocks of large side plates of described valve gap arrange with the lower end of little side plate the first party flange being used for being connected with the upper end of described valve body; Two blocks of large side plates of described valve gap, top board and two blocks of little side plates of valve gap surround for accommodating described valve plate and the space that lower end is uncovered; The inner side of two blocks of large side plates of described valve gap, top board and two blocks of little side plates of valve gap all arranges refractory materials, the multiple gusset of arranged outside of two blocks of large side plates of described valve gap, the spacing of adjacent two the described gussets on the large side plate of valve gap described in every block is equal and be horizontally disposed with, and the outside surface of described gusset covers more than 2/3 of the outside surface of the large side plate of described valve gap.
2. hot blast valve according to claim 1, is characterized in that, the cross section of described gusset is I-shaped or square hollow or rectangular hollow.
3. hot blast valve according to claim 1; it is characterized in that; described valve plate comprises valve plate body; the spiral water channel being used for water coolant circulation is set in described valve plate body; described valve plate body is towards a side cast high-strength light refractory materials of described hotblast stove; described valve plate body is towards matter high-strength refractory material in a side cast in hot blast main pipe road; the positive lower end of described valve plate body is provided with the protection block protruding from described valve plate body downwards; described protection block adopts high temperature material to make, the outside surface spraying high temperature insulation layer of described protection block.
4. hot blast valve according to claim 3, it is characterized in that, described valve plate body comprises the identical valve plate side plate of two block structures of corresponding setting, towards the valve plate side plate of described hotblast stove outside surface upper described in high-strength light refractory materials, towards the valve plate side plate in described hot blast main pipe road outside surface upper described in matter high-strength refractory material.
5. hot blast valve according to claim 3, it is characterized in that, the outer rim of two blocks of described valve plate side plates arranges and forms hydrosphere in water channel space for making between two blocks of valve plate side plates, described interior hydrosphere protrudes from the outside surface of two blocks of described valve plate side plates, outside described interior hydrosphere, outer hydrosphere is set, the outer water channel around two pieces of described valve plate side plate outer rims is formed between described interior hydrosphere and outer hydrosphere, described spiral water channel is formed by dividing plate between two blocks of described valve plate side plates, the water inlet be communicated with described outer water channel and the water outlet be communicated with described spiral water channel are offered in the top of described valve plate body.
6. hot blast valve according to claim 5, is characterized in that, two swash plates that described protection block also intersects to downward-extension by the both sides from described outer hydrosphere are formed.
7. hot blast valve according to claim 1, is characterized in that, the sealing-ring that described valve body comprises left flange, right flange, coaming plate, side have the annular of first ring connected in star and the transition piece of open at both ends for being connected with valve gap,
Described transition piece is surrounded by the two blocks of large side plates of valve body be oppositely arranged and the two blocks of little side plates of valve body be oppositely arranged, one end of described transition piece is coupling end, the other end is transitioning end, the two blocks of large side plates of described valve body being positioned at described transitioning end are concordant with the end face of two blocks of little side plates of valve body, and described transitioning end is connected with the second party flange for the first party Flange joint with described valve gap;
The side that described left flange is relative with right flange offers the second annular recesses near inner edge place, and described left flange connects described sealing-ring, and described first ring connected in star and described second annular recesses connect the airtight annular water chamber of formation one;
Described right flange is a round flange, and the internal diameter of described right flange is greater than described left flange;
Described coaming plate comprises annulus section and the semicircle segmental arc of formation that stretches out from lower part of described annulus section side, the outer rim of described semicircle segmental arc is connected with the outside of described left flange, and described coaming plate is positioned at the outside of described sealing-ring, described annulus section is connected with the internal surface of described right flange; The two ends of described semicircle segmental arc are connected with the one end of the two blocks of little side plates of described valve body being positioned at described coupling end respectively, and one end of two blocks of large side plates of described valve body of described coupling end is connected with the annulus section of described left flange and described coaming plate respectively;
The annulus section internal surface of described coaming plate arranges reinforcement steel ring, and described reinforcement steel ring arranges the refractory masses for covering described reinforcement steel ring outward;
Described sealing-ring is solid forging structure, and the side that described first ring connected in star do not offered by described sealing-ring forms trim.
8. hot blast valve according to claim 7, is characterized in that, the cross-sectional shape of described reinforcement steel ring is " ┙ ", and the internal diameter of described reinforcement steel ring is equal with the internal diameter of described left flange.
9. hot blast valve according to claim 7, it is characterized in that, described left flange comprises girth sheets two portions of round flange and annular, described girth sheets is arranged on the inner edge of described round flange side, and described round flange and described girth sheets are integral type solid forging, cast structure or described round flange and described girth sheets adopt welding process to link together.
10. hot blast valve according to claim 7, it is characterized in that, the equal applying of refractory material layer in inner side of the large side plate of described valve body, the little side plate of valve body, left flange, right flange and coaming plate, described sealing-ring is equal applying of refractory material layer except forming the outside surface at trim place, the outer surface high temperature insulation layer of described refractory masses or high temperature resistant wearing-resistant layer; Apply high temperature insulation layer and/or high-temperature resistant fiber layer between described large side plate, little side plate, left flange, right flange and coaming plate and coating described refractory masses thereon, the inner side of described large side plate, little side plate, left flange, right flange and coaming plate and the upper and lower sides of described sealing-ring arrange multiple high temperature alloy anchor nails respectively.
11. hot blast valves according to claim 1, it is characterized in that, described hot blast valve also comprises the drive unit driving described valve plate to move up and down to realize hot blast valve keying, described drive unit comprises and the synchronous operation identical with two of fixed support, crossbeam to drive described crossbeam thus two hydro-cylinders driving described valve rod and valve plate to move reciprocatingly, two described hydro-cylinders are fixed by described fixed support, and the piston rod of two described hydro-cylinders is connected with the two ends of described crossbeam respectively.
12. hot blast valves according to claim 11, it is characterized in that, the middle part of described crossbeam is provided with pull bar, described crossbeam is connected with described valve rod by described pull bar, also web plate is provided with between described pull bar and described valve rod, described drive unit also comprises tail rod, and one end of described tail rod is fixedly connected with described crossbeam, and the described fixed support the other end be provided with for described tail rod passes and limits the orienting sleeve that described tail rod rocks.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210148082.5A CN103421918B (en) | 2012-05-14 | 2012-05-14 | Hot blast valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210148082.5A CN103421918B (en) | 2012-05-14 | 2012-05-14 | Hot blast valve |
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| CN103421918B true CN103421918B (en) | 2015-07-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695286A (en) * | 1970-03-30 | 1972-10-03 | Rappold & Co Gmbh Hermann | Shut off valve of large diameter particularly a hot-blast slide valve |
| CN2336150Y (en) * | 1998-05-22 | 1999-09-01 | 石家庄市阀门三厂 | High air temp. water-cooled hot air valve |
| CN1904082A (en) * | 2006-08-08 | 2007-01-31 | 世林（漯河）冶金设备有限公司 | Valve plate of hot air valve |
| CN101328519A (en) * | 2008-07-30 | 2008-12-24 | 世林（漯河）冶金设备有限公司 | Hot air valve cover |
| CN202755011U (en) * | 2012-05-14 | 2013-02-27 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
-
2012
- 2012-05-14 CN CN201210148082.5A patent/CN103421918B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695286A (en) * | 1970-03-30 | 1972-10-03 | Rappold & Co Gmbh Hermann | Shut off valve of large diameter particularly a hot-blast slide valve |
| CN2336150Y (en) * | 1998-05-22 | 1999-09-01 | 石家庄市阀门三厂 | High air temp. water-cooled hot air valve |
| CN1904082A (en) * | 2006-08-08 | 2007-01-31 | 世林（漯河）冶金设备有限公司 | Valve plate of hot air valve |
| CN101328519A (en) * | 2008-07-30 | 2008-12-24 | 世林（漯河）冶金设备有限公司 | Hot air valve cover |
| CN202755011U (en) * | 2012-05-14 | 2013-02-27 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
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