CN202755011U - Hot blast valve - Google Patents
Hot blast valve Download PDFInfo
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- CN202755011U CN202755011U CN 201220214955 CN201220214955U CN202755011U CN 202755011 U CN202755011 U CN 202755011U CN 201220214955 CN201220214955 CN 201220214955 CN 201220214955 U CN201220214955 U CN 201220214955U CN 202755011 U CN202755011 U CN 202755011U
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- 238000010168 coupling process Methods 0.000 claims description 11
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- 238000001816 cooling Methods 0.000 description 7
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Abstract
The utility model 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 connected to 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 single-layered steel plates. 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 to form a space with a lower opening. The space is used for containing the valve plate. Fireproof materials are disposed on the inner sides of the two large valve cover side plates, the top plate and 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 utility model relates to a kind of valve, relates in particular to a kind of hot blast valve, belongs to the high temperature valve field that is applied on the metallurgical pipeline.
Background technology
Hot blast valve is requisite equipment in the blast funnace hot blast stove pipeline.In blast furnace ironmaking, all hot blasts that are sent to blast furnace all will pass 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, temperature up to 1200 ℃～1450 ℃, be one of worst equipment of Working environment in the blast-furnace equipment, the temperature of superelevation so that hot blast valve must by the cooling could work.Simultaneously, special Working environment causes that the 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.Simultaneously, the water quench hot blast valve can be taken away amount of heat, causes energy dissipation.Therefore reduce hot blast valve volume, weight reduction, reduction cooling-water consumption, saving resource improves the hot blast valve life-span, and is for the development of energy conservation, blast furnace system, particularly important.
The utility model content
Technical problem to be solved in the utility model provides that a kind of integral rigidity is strong, high-temperature capability and resistance to fatigue is high, long service life, and can reduce the hot blast valve of consumption and the temperature rise of water coolant.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: a kind of hot blast valve, the hot blast manifold road that is used for hotblast stove, comprise valve gap, valve plate and valve body, described valve gap comprises two relatively and the large side plates of valve gap that vertically arrange, be connected to the horizontally disposed top board of the two large side plate of described valve gap upper ends and be connected to two blocks of little side plates of valve gap of the two large side plate of described valve gap both sides, and the upper end of two blocks of described little side plates all is connected with described top board; The large side plate of described valve gap, top board and the little side plate of valve gap are the individual layer steel plate; Two blocks of large side plates of described valve gap and the lower end of little side plate are provided for the first party flange that is 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 space accommodating described valve plate and that the lower end is uncovered; The inboard 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, a plurality of gussets 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 every block of large side plate of described valve gap equates and is horizontally disposed with that the outside surface of described gusset covers more than 2/3 of 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 the valve plate body; be provided for the spiral water channel of water coolant circulation in the described valve plate body; described valve plate body is towards a side of described hotblast stove cast high-strength light refractory materials; described valve plate body is matter high-strength refractory material in the cast of a side in hot blast main pipe road; the positive lower end of described valve plate body is provided with the protection piece that protrudes from described valve plate body downwards; described protection piece adopts high temperature material to make, the outside surface spraying high temperature insulation layer of described protection piece.
As preferably, described valve plate body comprises the identical valve plate side plate of two block structures of corresponding setting, towards the described high-strength light refractory materials of outside surface upper of the valve plate side plate of described hotblast stove, towards the described middle matter high-strength refractory material of outside surface upper of the valve plate side plate in described hot blast main pipe road.
As preferably, the outer rim of two blocks of described valve plate side plates is provided for making the interior hydrosphere that forms the water channel space 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, described interior hydrosphere arranges outer hydrosphere outward, form the outer water channel around two described valve plate side plate outer rims between described interior hydrosphere and the outer hydrosphere, form described spiral water channel by dividing plate between two blocks of described valve plate side plates, the water inlet that is communicated with described outer water channel and the water outlet that is communicated with described spiral water channel are offered in the top of described valve plate body.
As preferably, described protection piece is by consisting of to downward-extension and two swash plates intersecting from the both sides of described outer hydrosphere.
As preferably, described valve body comprises that left flange, right flange, coaming plate, a side have the transition piece of the open at both ends that the sealing-ring and being used for of the annular of first ring connected in star is connected with valve gap,
Described transition piece is surrounded by two blocks of large side plates of valve body that are oppositely arranged and two blocks of little side plates of valve body that are oppositely arranged, one end of described transition piece is coupling end, the other end is transitioning end, two blocks of large side plates of described valve body that are 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 that is connected for the first party flange of described valve gap;
The side that described left flange is relative with right flange offers the second annular recesses near the inner edge place, connects described sealing-ring on the described left flange, and described first ring connected in star and described the second annular recesses connect and form an airtight annular water chamber;
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 that stretches out and form from lower part of described annulus section one 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, and described annulus section is connected with the internal surface of described right flange; The two ends of described semicircle segmental arc are connected with an end of two blocks of little side plates of described valve body that are positioned at described coupling end respectively, an end of two blocks of large side plates of described valve body of described coupling end respectively with described left flange be connected the annulus section of coaming plate and be connected;
On the annulus section internal surface of described coaming plate the reinforcement steel ring is set, the outer refractory masses that is used for covering described reinforcement steel ring that arranges of described reinforcement steel ring;
Described sealing-ring is the solid forging structure, and the side that described sealing-ring is not offered described first ring connected in star forms trim.
As preferably, the cross-sectional shape of described reinforcement steel ring is
The internal diameter of described reinforcement steel ring equates 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 one side, and described round flange and described girth sheets are that integral type solid forging, cast structure or described round flange and described girth sheets adopt welding process to link together.
As preferably, inboard all applying of refractory material layers 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 the outside surface that forms the trim place, and the outside surface of described refractory masses applies high temperature insulation layer 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 the coating described refractory masses thereon, the upper and lower sides inboard and described sealing-ring of described large side plate, little side plate, left flange, right flange and coaming plate arranges respectively a plurality of high temperature alloy anchor nails.
As preferably, hot blast valve of the present utility model comprises that also the described valve plate of drive moves up and down the drive unit of realizing that hot blast valve opens and closes, described drive unit comprises fixed support, crossbeam is identical with two and thereby synchronous operation drives two hydro-cylinders that described valve rod and valve plate move reciprocatingly to drive described crossbeam, 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 be provided with web plate between described pull bar and the described valve rod, described drive unit also comprises tail rod, one end of described tail rod is fixedly connected with described crossbeam, and the other end that described fixed support is provided with for described tail rod passes and limit the orienting sleeve that described tail rod rocks.
Compared with prior art, the beneficial effect of hot blast valve of the present utility model is:
1, the large side plate of the valve gap of hot blast valve of the present utility model, top board and two blocks of little side plates of valve gap all adopt the individual layer steel plate, and have saved water coolant, thereby have saved the electric energy of the water pump that water coolant is provided.The large size gusset is set, to strengthen rigidity and the heat radiation of valve gap outside valve gap.While is compared with the mode that the double-layer plate of available technology adopting adds water coolant, and valve gap has reduced weld seam quantity, thereby has reduced failure rate, has greatly prolonged the work-ing life of valve gap and hot blast valve.
2, the valve plate of hot blast valve of the present utility model adopts spiral water channel, makes whole valve plate cooling evenly.Pour into a mould respectively simultaneously the refractory materials of varying strength in the two sides of valve plate, in the work-ing life of balanced valve plate both sides refractory materials, prolong work-ing life of whole valve plate.And the protection piece that the valve plate bottom arranges can impact the cast in the hot air duct in the dirt discharge groove of hot blast valve, prevents the direct impact of cast and valve plate body, thus raising valve plate wind resistance scouring capability.
3, the trim of the sealing-ring of the valve body of hot blast valve of the present utility model adopts the solid forging structure, makes no-welding-seam on the trim, strengthens hot erosion resistant, thereby prolongs the work-ing life of valve body.The valve body sealing surface single-sided arrangement has reduced by an annular water chamber in addition, has in use just reduced an accident point (leaking).Annulus section internal surface at coaming plate arranges the reinforcement steel ring that is surrounded by refractory masses, to guarantee the rigidity without the trim side, can prevent effectively that also heat is to the transmission of valve inner simultaneously.
4, the drive unit of hot blast valve of the present utility model is owing to removed the mechanisms such as support of counterweight, counterweight guide rod and support counterweight, only adopt the lifting of two Driven by Hydraulic Cylinder valve plates, thereby make the weight saving of whole hot blast valve, also can save simultaneously the very large support of volume of original support counterweight, and the fixed support that only need be used for fixing the small volume of described hydro-cylinder gets final product, therefore greatly reduced the volume of whole hot blast valve, reduced the cost of whole hot blast valve and made hot blast valve be convenient to transportation and installation and removal.
Description of drawings
Fig. 1 is the part sectioned view of the front view of hot blast valve of the present utility model;
Fig. 2 is the part sectioned view of the side-view of hot blast valve of the present utility model;
Fig. 3 is the part sectioned view of the valve gap of hot blast valve of the present utility model;
Fig. 4 is the another kind of part sectioned view of the valve gap of hot blast valve of the present utility model;
Fig. 5 is that the A-A of Fig. 3 is to the partial cutaway diagram;
Fig. 6 is the external structure synoptic diagram of hot air valve plate of the present utility model;
Fig. 7 is the figure that cuts open that the edge of Fig. 6 is parallel to valve plate body side and process vertical section, valve plate body center;
Fig. 8 is that the C-C of Fig. 6 is to cuing open figure;
Fig. 9 is the enlarged view of B part among Fig. 8;
Figure 10 is the axial sectional view along the round flange of valve body of embodiment one of the valve body of hot blast valve of the present utility model;
Figure 11 is that the edge of embodiment one of valve body of hot blast valve of the present utility model is perpendicular to the axial part sectioned view of the round flange of valve body;
Figure 12 is the axial sectional view along the round flange of valve body of embodiment two of the valve body of hot blast valve of the present utility model;
Figure 13 is the axial sectional view along the round flange of valve body of embodiment three of the valve body of hot blast valve of the present utility model;
Figure 14 is the perspective view of the second coaming plate of embodiment three of the valve body of hot blast valve of the present utility model;
Figure 15 is the perspective view of another direction of the second coaming plate of embodiment three of the valve body of hot blast valve of the present utility model
Figure 16 is the axial sectional view along the round flange of valve body of embodiment four of the valve body of hot blast valve of the present utility model;
Figure 17 is that the edge of embodiment four of valve body of hot blast valve of the present utility model is perpendicular to the axial part sectioned view of the round flange of valve body;
Figure 18 is that the edge of embodiment five of valve body of hot blast valve of the present utility model is perpendicular to the axial part sectioned view of the round flange of valve body;
Figure 19 is the front view of the drive unit of hot blast valve of the present utility model;
Figure 20 is the side-view of the drive unit of hot blast valve of the present utility model.
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 among the 3-high-strength light refractory materials 4-
5-protection piece 6-valve plate side plate
The outer hydrosphere of hydrosphere 8-in the 7-
Outer water channel 10-the first water inlet of 9-
11-the 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-the first coaming plate
The large side plate of 105-sealing-ring 106-valve body
The little side plate 108-of 107-valve body first ring connected in star
109-the second annular recesses 110-annular water chamber
111-trim 112-the second water-in
113-the second water outlet 114-refractory masses
115-high temperature insulation layer 116-anchor nails
117-mudhole 118-space
119-strengthens steel ring 120-the second coaming plate
121-annulus section 122-semicircle segmental arc
The large side plate 202-of 201-valve gap top board
The little side plate 204-of 203-valve gap 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 utility model is described in further detail, but not as to restriction of the present utility model.
As depicted in figs. 1 and 2, a kind of hot blast valve of the present utility model, the hot blast manifold road for hotblast stove comprises valve gap 200, valve plate 300 and valve body 100.
Such as Fig. 3 and shown in Figure 5, the valve gap 200 of the utility model hot blast valve, comprise two relatively and the large side plates 201 of valve gap that vertically arrange, the upper end that is connected to the horizontally disposed top board 202 of the two large side plate of valve gap 201 upper ends and is connected to 203, two blocks of little side plates 203 of valve gap of the little side plate of two valve gaps of the two large side plate of valve gap 201 both sides all be connected with top board 202.The large side plate 201 of valve gap, top board 202 and the little side plate 203 of valve gap are the individual layer steel plate.The lower end of two blocks of large side plates 201 of valve gap is provided for the first party flange 204 that is connected with the upper end of the valve body of hot blast valve.Two blocks of large side plates 201 of valve gap, top board 202 and two blocks of little side plates 203 of valve gap surround the space 205 valve plate and that the lower end is uncovered for accommodating hot blast valve.The inboard of two blocks of large side plates 201 of valve gap, top board 202 and two blocks of little side plates 203 of valve gap all arranges a plurality of gussets 207 of arranged outside of 206, two blocks of large side plates 201 of valve gap of refractory materials.Gusset 207 is preferably the large size gusset, and the rigidity that can strengthen valve gap plays again the effect of heat radiation.In order to play good heat radiation and really to play the effect of strengthening valve gap rigidity, as further some, the outside surface of gusset 207 covers more than 2/3 of outside surface of the large side plate 201 of valve gap.And the spacing of adjacent two gussets 207 on every block of large side plate 201 of valve gap equates and is horizontally disposed with.
In order to remedy the problem that the heat radiation deficiency that water coolant causes is not set, the cross section of the gusset 207 of present embodiment is I-shaped, thereby has increased the outside surface of gusset 207, has also just increased area of dissipation, makes the radiating effect of valve gap good.Certainly, the cross section of gusset 207 also can be square hollow or rectangular hollow, also has the effect that increases heat radiation.
Therefore the valve gap no-cooling-water of the hot blast valve of present embodiment has been saved the electric energy of the water pump that water coolant is provided, and has also avoided the appearance of seepy question.And owing to do not have water coolant to take away heat to cause calorific loss, the wind-warm syndrome when making hot blast pass through hot blast valve improves on year-on-year basis.The large side plate 201 of other two valve gaps, top board 202 and two blocks of little side plates 203 of valve gap are the individual layer steel plate, have therefore reduced weld seam quantity, have reduced failure rate, have greatly prolonged the work-ing life of valve gap and hot blast valve.
As shown in Figure 3, the large side plate 201 of two 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 the valve gap of arc has the following advantages: 1. be easy to the setting of been provided with internal refractories 206; 2. increase the area of dissipation of valve gap outside surface, be conducive to reduce the valve cover surfaces temperature, also be beneficial to the hot blast valve repair and maintenance; 3. also can increase in addition the installing space between the gear frame of top board 202 and hot blast valve, be conducive to the gear frame installation.
Such as Fig. 3 and shown in Figure 5, a kind of preferred version as present embodiment, apply respectively high temperature insulation layer 208 or high-temperature fibre 209 between two blocks of large side plates 201 of valve gap and the refractory materials 206, between top board 202 and the refractory materials 206 and between two blocks of little side plates 203 of valve gap and the refractory materials 206, also can apply simultaneously high temperature insulation layer 208 and high-temperature fibre 209.The refractory materials 206 that arranges in the present embodiment can be lightweight, also can be middle matter, and when adopting lightweight refractory, the inboard of the large side plate 201 of valve gap, top board 202 and the little side plate 203 of valve gap is followed successively by high temperature insulation layer 208 and lightweight refractory.During fire resistant materials, the inboard of the large side plate 201 of valve gap, top board 202 and the little side plate 203 of valve gap is followed successively by high temperature insulation layer 208, high-temperature fibre 209 and lightweight refractory in adopting.
As shown in Figure 5, apply high-temperature fibre 209 between wherein large side plate 201 of valve gap of present embodiment and the refractory materials 206, then applied high temperature insulation layer 208 between the large side plate 201 of another piece valve gap and the refractory materials 206.As shown in Figure 3, then applied high temperature insulation layer 208 between the little side plate 203 of valve gap and the refractory materials 206.
As the another kind of preferred version of present embodiment, the inboard of two blocks of large side plates 201 of valve gap, top board 202 and two blocks of little side plates 203 of valve gap arranges respectively a plurality of for the fixing anchor nails 210 of refractory materials 206.Anchor nails 210 is used for grasping refractory materials 206, prevents that refractory materials 206 from coming off.Anchor nails 210 adopts high temperature alloys to make, and effectively prevents coming off of the refractory materials 206 that causes because of anchor nails 210 scaling loss, thereby has improved the ability of valve gap opposing thermal fatigue.
In addition; outside surface spraying high temperature insulation layer (not shown) in anchor nails 210; effectively stop high-temperature hot-air to the heat transfer of the large side plate 201 of valve gap, top board 202, the little side plate 203 of valve gap and the anchor nails 210 of valve plate; improve on year-on-year basis wind pushing temperature; protect valve gap, prolonged 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 also are rectangle.The large side plate 201 of valve gap, top board 202 and the little side plate 203 of valve gap have surrounded a cubes that the lower end is uncovered.This structure of the large side plate 201 of valve gap and the little side plate 203 of valve gap makes things convenient for the hot blast valve blanking, organizes to and welds, and easy handling.
Extremely shown in Figure 9 such as Fig. 6, the valve plate of the hot blast valve of embodiment of the present utility model, comprise valve plate body 1, be provided for the spiral water channel 2 of water coolant circulation in the valve plate body 1, valve plate body 1 is towards a side of described hotblast stove cast high-strength light refractory materials 3, high-strength light refractory materials 3 refers to have lower density, and the refractory materials of higher intensity is arranged again.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 matter high-strength refractory material 4 in the cast of a side in hot blast main pipe road.The intensity of middle matter high-strength refractory material 4 is high, and heat-resisting wind high pressure erosion performance is good, difficult drop-off, long service life.The refractory materials of the both sides of valve plate body 1 cast different performance, the work-ing life of balanced valve plate body both sides refractory materials, thus prolong work-ing life of whole valve plate body 1.In addition, arranging of spiral water channel 2 can make whole valve plate body 1 cooling evenly.
As shown in Figure 8, valve plate body 1 comprises on the outside surface of 6, two blocks of valve plate side plates 6 of the identical valve plate side plate of two block structures of corresponding setting and pours into a mould respectively high-strength light refractory materials 3 and middle matter high-strength refractory material 4.
As a kind of preferred version of present embodiment, between the valve plate side plate 6 of high-strength light refractory materials 3 and its cast and between the valve plate side plate 6 of middle matter high-strength refractory material 4 and 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 respectively high temperature insulation layer 14.Hot air valve plate of the present utility model is owing to adopted high-strength light refractory materials 3, middle matter high-strength refractory material 4 and high temperature insulation layer 14, stoped the transmission of heat water coolant in the valve plate, the heat that water coolant is taken away reduces, so what the temperature of water coolant raise lacks, the wind-warm syndrome when making hot blast pass through hot blast valve improves on year-on-year basis.What the temperature of water coolant raise lacks, and has also reduced the consumption of water coolant, thereby has saved the electric energy of the water pump that water coolant is provided.
As shown in Figure 7 and Figure 8, outer rim along two blocks of valve plate side plates 6 is provided for making the interior hydrosphere 7 that forms the water channel space 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, interior hydrosphere 7 is outer to arrange outer hydrosphere 8, form the outer water channel 9 around two valve plate side plate 6 outer rims between interior hydrosphere 7 and the outer hydrosphere 8, also circulating in the outer water channel 9 has water coolant.Water channel space between two blocks of valve plate side plates 6 forms spiral water channel 2 by dividing plate 16, offers the connection mouth of a river 17 that spiral water channel 2 is communicated with outer water channel 9 on the interior hydrosphere 7.The first water inlet 10 that is communicated with outer water channel 9 and the first water outlet 11 that is communicated with spiral water channel 2 are offered in the top of valve plate body 1.Outer hydrosphere 8 adopts the solid forging structures, makes no-welding-seam on the trim of valve plate, and valve in use more heat-resisting wind washes away, and relatively prolongs in the lower life-span of high-temperature condition.Weldless solid forging structure hot erosion resistant is strong.
Continuation is in conjunction with Fig. 6 to Fig. 9, further preferred as present embodiment, and the positive lower end of valve plate body 1 is provided with the protection piece 5 that protrudes from valve plate body 1 downwards.Hot blast valve is in normal operation, when in the pipeline cast being arranged, cast is blown to by hot blast in the dirt discharge groove (not shown) of hot blast valve bottom, and large cast jam can fall at dirt discharge groove, make the pass, lower end of valve plate not in place, so hot blast valve can't seal.The user usually impacts downwards with valve plate, so that the lower end of valve plate smashes cast, makes it to fall in the dirt discharge groove.Valve plate is deformed, even weld cracking leak perhaps trim damage.Therefore increase protection piece 5 in the lower end of valve plate body 1, when impacting with valve plate, protection piece 5 directly is hit downwards, avoid directly impacting the trim of valve plate.Also strengthened simultaneously the scouring capability of valve plate heat resistanceheat resistant wind.
Protection piece 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 piece 5.Such as Fig. 8 and shown in Figure 9, the protection piece 5 in the present embodiment is by consisting of to downward-extension and two swash plates 12 intersecting from the both sides of outer hydrosphere 8, surrounds cavity 13 between two swash plates 12 and the outer hydrosphere 8.
As another preferred version of present embodiment, interior hydrosphere 7 arranges respectively a plurality of high temperature alloy anchor nails 15 on a side of valve plate side plate 6 and two blocks of valve plate side plates side outwardly.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 prevent effectively that the high-strength light refractory materials 3 or the middle matter high-strength refractory material 4 that cause because of anchor nails 15 scaling loss from coming off, improved the ability of the valve plate side plate 6 opposing Under Thermal Fatigue Damages of valve plate, thus the work-ing life of having improved valve plate
As the further preferred version of present embodiment, the outside surface of anchor nails 15 also sprays the high temperature insulation layer, effectively stops high-temperature hot-air to conduct heat to valve plate and anchor nails 15, improves on year-on-year basis wind pushing temperature, and protection valve plate side plate 6 prolongs valve plate work-ing life.
Divide different embodiment to describe in detail below in conjunction with Figure 10 to Figure 18 to the valve body of hot blast valve of the present utility model:
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 that is oppositely arranged and right flange and the first coaming plate, two sealing-rings and transition piece.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 1 sides.The structure of described right flange and the structure of described left flange are identical.The girth sheets 103 of described left flange and right flange is relative.Round flange 101 in the present embodiment one is integral type solid forging, cast structure with girth sheets 103.
Described transition piece is surrounded with the little side plate 107 of two valve bodies that is oppositely arranged by the large side plate 106 of two valve bodies that are 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 large side plate 106 of two valve bodies that is positioned at described transitioning end is concordant with the end face of two blocks of little side plates 107 of valve body, and described transitioning end is connected with for the second party flange 102 that is connected with valve gap.
The opposite side of two girth sheets 103 of described left valve barrel and right valve barrel offers respectively the second annular recesses 109 near its inner rim place.Offer respectively first ring connected in star 108 on two sealing-rings 105, connect respectively a sealing-ring 105 on each girth sheets 103, and first ring connected in star 108 and the second annular recesses 109 connect and form an airtight annular water chamber 110.Sealing-ring 105 is the solid forging structure, and sealing-ring 105 is not offered a side of first ring connected in star 108, and namely two sealing-ring 105 relative sides form respectively two trims 111.
Continuation is in conjunction with Figure 10 and Figure 11, the first coaming plate 104 is arc and is arranged between described left flange and the 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 an end of two blocks of little side plates 107 of valve body that are positioned at described coupling end respectively, an end of two blocks of large side plates 106 of valve body of described coupling end respectively with described left flange be connected the girth sheets 103 of flange and be connected.
Sealing-ring among the embodiment one is the solid forging structure, makes no-welding-seam on the trim 111, and valve body in use more heat-resisting wind washes away, and relatively prolongs in the lower life-span of high-temperature condition.Weldless solid forging structure hot erosion resistant is stronger.
Trim 111 among the embodiment one is arranged for bilateral, make the easier assurance of rigidity of valve body, high top pressure operation environment preferably, a trim 111 uses, another trim can emergency power (when hot blast blows from left to right, the trim 111 on right side is realized sealing with valve plate, and when hot blast blew from right to left, the trim 111 in left side was realized sealing with valve plate).Thereby make hot blast valve realize dual face seals.
As shown in figure 11, offer on the hot air valve body of the present utility model for the second water-in 112 to the annular water chamber 110 interior water supply of hot air valve body of the present utility model, also offer the second water outlet 113 on the valve body simultaneously.The second water-in 112 in the present embodiment and the second water outlet 113 all are arranged on the middle part of valve body.The second water-in 112 be connected middle part that water outlet 113 is arranged on valve body and make things convenient for connection and the layout of cooling water system, simultaneously can guarantee effectively that also water coolant is full of whole annular water chamber 110, the usefulness of water coolant is fully used, guarantee good cooling performance, and then increase the work-ing life of valve body.
In embodiment one, for high-temperature capability and the heat-resistant anti-fatigue performance that valve body further is provided, to prolong the work-ing life of valve body.As preferred version, inboard all applying of refractory material layers 114 of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104, sealing-ring 105 also equal applying of refractory material layer 114 except the outside surface that forms trim 111 places, the outside surface of refractory masses 114 applies high temperature insulation layer 115 or high temperature resistant wearing-resistant layer.
As further preferred, also apply high temperature insulation layer 115 and/or high-temperature resistant fiber layer between the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104 and the coating refractory masses 114 thereon.As when the temperature of hot blast is high, high temperature insulation layer 115 and high-temperature resistant fiber layer use simultaneously, and when hot blast temperature was slightly low, high temperature insulation layer 115 and high-temperature resistant fiber layer can be chosen one wantonly.
Refractory masses 114 can be selected the lightweight refractory layer, also can select middle fire resistant materials layer, also can be two kinds be used in combination.During the fire resistant materials layer, the inboard of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104 applies respectively high temperature insulation layer 115, high-temperature fibre and middle fire resistant materials layer successively in refractory masses 114 adopts.When refractory masses 114 was the lightweight refractory layer, the inboard of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104 applied respectively high-temperature resistant fiber layer, lightweight refractory layer and high temperature resistant wearing-resistant layer successively.When refractory masses 114 is selected the combination of middle fire resistant materials layer and lightweight refractory layer, the inboard of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104 applies respectively high temperature insulation layer 115, lightweight refractory layer and middle fire resistant materials layer 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, center, the bottom of the first coaming plate 104 offers mudhole 117, is coated with refractory masses on the inwall of mudhole 117.The space 118 that is used for accommodating valve plate (not shown) that forms between mudhole 117 and two round flanges 101 is connected.The cross section of mudhole 117 both can be that circular port can be square opening also, and the mudhole 117 shown in the figure is circular port.The purpose that mudhole 117 arranges is be used to the refuses such as refractory masses 114 that come off from pipeline or valve interior wall face or valve plate wall are discharged.
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, thereby prolongs the work-ing life of valve body.Simultaneously also can stop heat to the transmission of valve inner, make lacking that the temperature of the water coolant in the annular water chamber 110 raises, guaranteeing to reduce the consumption of water coolant in the constant situation of valve body cooling water temperature rise, guarantee equally the work-ing life of valve body.Therefore the consumption that has reduced water coolant has saved the electric energy of the water pump that water coolant is provided.In addition, according to heat energy formula Q=Cm △ t, because lacking of the temperature of water coolant rising just reduced the heat that water coolant is taken away.And these heats are provided by hot blast.Calculate conversely the temperature of hot blast and fall, when Q has reduced, C, m are constant, and △ t is just little.Wind-warm syndrome when therefore, making hot blast pass through hot blast valve improves on year-on-year basis.
As shown in figure 11, the upper and lower sides of the inboard of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103 and the first coaming plate 104 and sealing-ring 105 arranges respectively a plurality of for the fixing anchor nails 116 of the high temperature alloy of refractory masses 114.Anchor nails 116 plays a part fixedly, and refractory masses 114 prevents that it from coming off.Anchor nails 116 adopts the high temperature alloy materials effectively to prevent coming off of the refractory masses 114 that causes because of anchor nails 116 scaling loss, thereby has improved the ability of valve body opposing Under Thermal Fatigue Damage.
As further preferred version, the outside surface of anchor nails 116 spraying high temperature insulation layer 115.Effectively stop high-temperature hot-air to the heat transfer of the large side plate 106 of valve body, the little side plate 107 of valve body, round flange 101, girth sheets 103, the first coaming plate 104 and anchor nails 116, improve simultaneously wind pushing temperature, protection valve body, the work-ing life of improving 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 all are arranged on the bottom of valve body, the second water-in 112 be connected bottom that water outlet 113 is arranged on valve body and make things convenient for connection and the layout of cooling water system, can guarantee effectively also that simultaneously water coolant is full of whole annular water chamber 110(and 110,112,113 does not all indicate in Figure 12), the usefulness of water coolant is fully used, guarantee good cooling performance, and then prolong the work-ing life of valve body.
Except above-mentioned 2 differences, the structure of other parts of embodiment two and embodiment one are identical.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 present embodiment three is provided with a trim 111, and embodiment is provided with two trims 111 first.Thereby the difference that has also just caused valve body structure among two embodiment.
As shown in figure 13, the hot air valve body of present embodiment three comprises the transition piece of left flange, right flange, the second coaming plate 120, an open at both ends that has the sealing-ring 105 of first ring connected in star 108 and be used for being connected with valve gap.Described left flange side, structure and the embodiment one of valve body that trim 111 sides namely are set is basic identical, namely comprises the sealing-ring 105 on the described left flange that is made of round flange 101 and girth sheets 103 and the girth sheets 103 that is arranged on described left flange.Round flange 101 and girth sheets 103 are the integral type structure.Offer the second annular recesses 109 on the girth sheets 103, first ring connected in star 108 docks with the second annular recesses 109 and forms an airtight annular water chamber.And opposite side also just cancelled sealing-ring 105 and girth sheets 103, and described right flange is also different from the structure of left flange owing to cancelled trim 111, and 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, such as Figure 14 and shown in Figure 15, the second coaming plate 120 comprises annulus section 121 and the semicircle segmental arc 122 that stretches out and form from lower parts of annulus section 121 1 sides, the outer rim of semicircle segmental arc 122 is connected with the outside of described left flange (the namely outside of coaming plate 103), 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, the part of annulus section 121 has extend in the 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 an end of two blocks of little side plates 107 of valve body that are positioned at described coupling end respectively, an end of two blocks of large side plates 106 of valve body of described coupling end respectively with described left flange be connected the annulus section 121 of coaming plate 120 and be connected.
In order to strengthen the strength and stiffness that trim 111 and girth sheets 103 sides (being the right side) are not set, as shown in figure 13, arrange on the internal surface of the annulus section 121 of the second coaming plate 120 and strengthen steel ring 119, strengthen steel 119 outer settings and be used for covering the refractory masses 114 of strengthening steel ring 119.Strengthen arranging respectively on the steel ring 114 a plurality of for the fixing anchor nails 116 of the high temperature alloy of refractory masses 114.
As a kind of preferred version of present embodiment, as shown in figure 13, the cross-sectional shape of strengthening steel ring 119 is
The internal diameter of strengthening steel ring 119 equates with the internal diameter of described left flange.So that when guaranteeing the right side strength and stiffness, 119 pairs of one-piece constructions of reinforcement steel ring are not impacted.Center, bottom at the second coaming plate 120 offers mudhole 117.Applying of refractory material layer on the inwall of mudhole 117.The space 118 that is used for accommodating valve plate (not shown) that forms between mudhole 117 and two round flanges 101 is connected.The cross section of mudhole 117 both can be that circular port also can be square opening, and as shown in Figure 5 and Figure 6, the mudhole 117 shown in the figure is circular port.The purpose that mudhole 117 arranges is be used to the refuses such as refractory masses 114 that come off from pipeline or valve interior wall face or valve plate wall are discharged.
During trim 111 one-sided the setting, owing to lacked a trim 111, also lack an annular water chamber 110, in use reduced an accident point (many annular water chambers 110 are with regard to many twice weld seam, with regard to many places that may leak).
Embodiment four:
Such as Figure 16 and shown in Figure 17, embodiment four and embodiment three are basic identical, all be single-side sealing, the girth sheets 103 that both differences only are to consist 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.Among the embodiment four, girth sheets 103 links together for the employing welding process with round flange 101, but not integral structure.The second water-in 112 and the second water outlet 113 all arrange the bottom of valve body in the present embodiment four, the second water-in 112 be connected bottom that water outlet 113 is arranged on valve body and make things convenient for connection and the layout of cooling water system, simultaneously can guarantee effectively that also water coolant is full of whole annular water chamber 110, the usefulness of water coolant is fully used, guarantee good cooling performance, and then prolong the work-ing life of valve body.
Embodiment five:
As shown in figure 18, embodiment five only is that from the difference of embodiment one the second water-in 112 is different with the setting position of the second water outlet 113 on valve body.In 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 utility model comprises that also the described valve plate of drive moves up and down the drive unit 400 of realizing that hot blast valve opens and closes, 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 hydro-cylinder 402 of the identical and synchronous operation of two of driving that thereby crossbeam 405 actuate valve stem 408 drive that valve plates 300 move reciprocatingly, the piston rod 404 of two hydro-cylinders 402 is connected with crossbeam 405 respectively, in the present embodiment, crossbeam 405 growth strips, the piston rod 404 of two hydro-cylinders 402 link to each other with the two ends of crossbeam 405 respectively.Under the hot blast valve closing condition, piston rod 404 contractings of two hydro-cylinders 402 are in the cylinder body of hydro-cylinder 402, and valve plate 300 is blocked hot air duct.In the present embodiment, in order to make two hydro-cylinder 402 synchronous operations, two hydro-cylinders 402 adopt same starter gear control, opening this starter gear can make two hydro-cylinders 402 start simultaneously, the piston rod 404 of two hydro-cylinders 402 stretches out synchronously, promotes crossbeam 405 and moves upward, and moves upward thereby promote connected valve rod 408, and then drive valve plate 300 and 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 405 drive valve plates 300 move downward thereby piston rod 404 drives crossbeam, and hot air duct is blocked.This drive unit, owing to removed counterweight, thereby make drive unit also make the weight saving of whole hot blast valve, also can save simultaneously the very large support of volume of original support counterweight, and the fixed support 403 that only need be used for fixing the small volume of hydro-cylinder 402 gets final product, therefore greatly reduced the volume of whole hot blast valve, reduced the cost of whole hot blast valve and made hot blast valve be convenient to transportation 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 the valve rod 408, pull bar 406 valve rods 408 all are 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, perpendicular to the horizontal plane setting, be equipped with the tail rod 409 that can in orienting sleeve 410, slide perpendicular to horizontal plane in the 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 under the drive of crossbeam 405, move up and down synchronously with valve rod 408 and valve plate 300, prevent from that 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, also can be provided with the first inductor block 413 and the second inductor block 414 on the tail rod 409, 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 processes induction the first inductor block 413 and sends the first limit switch 411 of making hydro-cylinder 402 signal out of service and induction the second inductor block 414 and send the second limit switch 412 that makes hydro-cylinder 402 signal out of service to hydro-cylinder 402 when sensing the second inductor block 414 to hydro-cylinder 402 when sensing the first inductor block 413.Open, opening at described hot blast valve or just in closing process, the position of the first inductor block 413 all is higher than the position of the first limit switch 411.Close when putting in place at described hot blast valve, the position of the position of the first inductor block 413 and the first limit switch 411 is contour, and this moment, the first limit switch 411 was sensed the first inductor block 413, and sends the signal that makes hydro-cylinder 402 out of service to hydro-cylinder 402.The second inductor block 414 is positioned at the bottom of tail rod 409, when closing, opening or closing at described hot blast valve, the position of the second inductor block 414 is lower than the position of the second limit switch 412, when described hot blast valve is opened when putting in place, the position of the position of the second inductor block 414 and the second limit switch 412 is contour, and the second limit switch 412 was sensed the second inductor block 414 and sent the signal that makes hydro-cylinder 402 out of service to hydro-cylinder 402 this moment.The 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, promoting crossbeam 405 moves upward, crossbeam 405 drives tail rod 409 and is synchronized with the movement, when the second limit switch 412 is sensed the second inductor block 414, send shutdown signal to the starter gear of hydro-cylinder 402, make hydro-cylinder 402 out of service, at this moment, the position of valve plate 300 opens described hot blast valve to put in place.When closing hot blast valve, in the cylinder body of the piston rod 404 retraction hydro-cylinders 402 of hydro-cylinder 402, driving crossbeam 405 moves downward, crossbeam 405 drives tail rod 409 and moves downward synchronously, when sensing the first inductor block 413, the first limit switch 411 sends shutdown signal to hydro-cylinder 402, piston rod 404 stop motions of hydro-cylinder, at this moment, the position of valve plate 300 is closed described hot blast valve and is put in place.This structure has realized that valve plate 300 opens and closes the definite position of automatic precision of position, compare with range estimation valve plate 300 opening and closing positions and manually operated structure in the prior art, registration can prevent from opening and closing the generation that the pipeline that causes 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 be regulated according to the needed stroke of valve plate.
Above embodiment is exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (13)
1. hot blast valve, the hot blast manifold road that is used for hotblast stove, it is characterized in that, comprise valve gap, valve plate and valve body, described valve gap comprises two relatively and the large side plates of valve gap that vertically arrange, be connected to the horizontally disposed top board of the two large side plate of described valve gap upper ends and be connected to two blocks of little side plates of valve gap of the two large side plate of described valve gap both sides, and the upper end of two blocks of described little side plates all is connected with described top board; The large side plate of described valve gap, top board and the little side plate of valve gap are the individual layer steel plate; Two blocks of large side plates of described valve gap and the lower end of little side plate are provided for the first party flange that is 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 space accommodating described valve plate and that the lower end is uncovered; The inboard 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, a plurality of gussets of arranged outside of two blocks of large side plates of described valve gap.
2. hot blast valve according to claim 1 is characterized in that, the spacing of adjacent two the described gussets on every block of large side plate of described valve gap equates and be horizontally disposed with that the outside surface of described gusset covers more than 2/3 of outside surface of the large side plate of described valve gap.
3. 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.
4. hot blast valve according to claim 1; it is characterized in that; described valve plate comprises the valve plate body; be provided for the spiral water channel of water coolant circulation in the described valve plate body; described valve plate body is towards a side of described hotblast stove cast high-strength light refractory materials; described valve plate body is matter high-strength refractory material in the cast of a side in hot blast main pipe road; the positive lower end of described valve plate body is provided with the protection piece that protrudes from described valve plate body downwards; described protection piece adopts high temperature material to make, the outside surface spraying high temperature insulation layer of described protection piece.
5. hot blast valve according to claim 4, 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 described high-strength light refractory materials of outside surface upper of the valve plate side plate of described hotblast stove, towards the described middle matter high-strength refractory material of outside surface upper of the valve plate side plate in described hot blast main pipe road.
6. hot blast valve according to claim 4, it is characterized in that, the outer rim of two blocks of described valve plate side plates is provided for making the interior hydrosphere that forms the water channel space 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, described interior hydrosphere arranges outer hydrosphere outward, form the outer water channel around two described valve plate side plate outer rims between described interior hydrosphere and the outer hydrosphere, form described spiral water channel by dividing plate between two blocks of described valve plate side plates, the water inlet that is communicated with described outer water channel and the water outlet that is communicated with described spiral water channel are offered in the top of described valve plate body.
7. hot blast valve according to claim 6 is characterized in that, described protection piece is by consisting of to downward-extension and two crossing swash plates from the both sides of described outer hydrosphere.
8. hot blast valve according to claim 1 is characterized in that, described valve body comprises that left flange, right flange, coaming plate, a side have the transition piece of the open at both ends that the sealing-ring and be used for of the annular of first ring connected in star is connected with valve gap,
Described transition piece is surrounded by two blocks of large side plates of valve body that are oppositely arranged and two blocks of little side plates of valve body that are oppositely arranged, one end of described transition piece is coupling end, the other end is transitioning end, two blocks of large side plates of described valve body that are 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 that is connected for the first party flange of described valve gap;
The side that described left flange is relative with right flange offers the second annular recesses near the inner edge place, connects described sealing-ring on the described left flange, and described first ring connected in star and described the second annular recesses connect and form an airtight annular water chamber;
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 that stretches out and form from lower part of described annulus section one 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, and described annulus section is connected with the internal surface of described right flange; The two ends of described semicircle segmental arc are connected with an end of two blocks of little side plates of described valve body that are positioned at described coupling end respectively, an end of two blocks of large side plates of described valve body of described coupling end respectively with described left flange be connected the annulus section of coaming plate and be connected;
On the annulus section internal surface of described coaming plate the reinforcement steel ring is set, the outer refractory masses that is used for covering described reinforcement steel ring that arranges of described reinforcement steel ring;
Described sealing-ring is the solid forging structure, and the side that described sealing-ring is not offered described first ring connected in star forms trim.
9. hot blast valve according to claim 8 is characterized in that, the cross-sectional shape of described reinforcement steel ring is
The internal diameter of described reinforcement steel ring equates with the internal diameter of described left flange.
10. hot blast valve according to claim 8, 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 one side, and described round flange and described girth sheets are that integral type solid forging, cast structure or described round flange and described girth sheets adopt welding process to link together.
11. hot blast valve according to claim 8, it is characterized in that, inboard all applying of refractory material layers 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 the outside surface that forms the trim place, and the outside surface of described refractory masses applies high temperature insulation layer 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 the coating described refractory masses thereon, the upper and lower sides inboard and described sealing-ring of described large side plate, little side plate, left flange, right flange and coaming plate arranges respectively a plurality of high temperature alloy anchor nails.
12. hot blast valve according to claim 1, it is characterized in that, described hot blast valve comprises that also the described valve plate of drive moves up and down the drive unit of realizing that hot blast valve opens and closes, described drive unit comprises fixed support, crossbeam is identical with two and thereby synchronous operation drives two hydro-cylinders that described valve rod and valve plate move reciprocatingly to drive described crossbeam, 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.
13. hot blast valve according to claim 12, 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 be provided with web plate between described pull bar and the described valve rod, described drive unit also comprises tail rod, and an end of described tail rod is fixedly connected with described crossbeam, and the other end that described fixed support is provided with for described tail rod passes and limit the orienting sleeve that described tail rod rocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214955 CN202755011U (en) | 2012-05-14 | 2012-05-14 | Hot blast valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220214955 CN202755011U (en) | 2012-05-14 | 2012-05-14 | Hot blast valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755011U true CN202755011U (en) | 2013-02-27 |
Family
ID=47734202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220214955 Withdrawn - After Issue CN202755011U (en) | 2012-05-14 | 2012-05-14 | Hot blast valve |
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| Country | Link |
|---|---|
| CN (1) | CN202755011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421918A (en) * | 2012-05-14 | 2013-12-04 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
| CN111349736A (en) * | 2020-03-31 | 2020-06-30 | 广东韶钢松山股份有限公司 | Treatment process for reducing blocking frequency of blast furnace hot blast valve |
-
2012
- 2012-05-14 CN CN 201220214955 patent/CN202755011U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421918A (en) * | 2012-05-14 | 2013-12-04 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
| CN103421918B (en) * | 2012-05-14 | 2015-07-08 | 秦皇岛秦冶重工有限公司 | Hot blast valve |
| CN111349736A (en) * | 2020-03-31 | 2020-06-30 | 广东韶钢松山股份有限公司 | Treatment process for reducing blocking frequency of blast furnace hot blast valve |
| CN111349736B (en) * | 2020-03-31 | 2022-01-11 | 广东韶钢松山股份有限公司 | Treatment process for reducing blocking frequency of blast furnace hot blast valve |
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