CN202945258U - Sweeping device for material flow regulating valve - Google Patents

Abstract

The utility model relates to a sweeping device for a material flow regulating valve. The material flow regulating valve mainly comprises a valve body, transmission shafts and an oil cylinder driving device, wherein the transmission shaft on each side is fixed on the valve body through a bearing seat and connected with a valve plate in the valve body. The sweeping device is characterized in that a heat insulation material is arranged on the inner wall of a main body at the middle part of the valve body, the sweeping device is buried in the heat insulation material, and sweeping holes and sweeping paths are reserved for the sweeping device; the sweeping device comprises a plurality of annular channels which are independently arranged in parallel and take the center of the transmission shafts as the rotation center, and one end of each annular channel extends out of the annulus, penetrates through the valve body and is connected with an external gas supply device; and gas blowing holes are formed in each annular channel at intervals, and the sweeping paths of the gas blowing holes spread to a set sweeping area. The sweeping device can effectively solve the high-temperature protection problem of a sealing member under a high-temperature environment so as to practically reduce the incidence rate of operation faults.

Description

A kind of material flow gate blow device

Technical field

The utility model relates to metallurgical ironmaking technology field, relates in particular to a kind of blast furnace material flow gate device that is applicable to high-temp. furnace material.

Background technology

Material flow gate is one of equipment important on the ironmaking production processing line, is arranged in the below of batch can, the top of lower sealing valve, and its Main Function is exactly that the material stream of batch can is regulated, to satisfy the cloth requirement of distributor.Valve board structure and valve plate type of drive for the blast furnace material flow gate have the various structures form at present.At present for the single hydraulic oil cylinder driving of the many employings of blast furnace material flow gate, driving oil cylinder is installed on valve body, the valve plate that is positioned at blanking interior lining panel below by driving rotarily driving of oil cylinder rotates to certain position, open a material mouth below making the blanking interior lining panel, from then on blast furnace burden just falls into blast furnace in the material mouth.

Yet only for conventional cold burden design, during for high-temp. furnace material, due to the protection Cooling Design that there is no need, one-piece construction is too thin for present material flow gate.Thereby the material flow gate of conventional design does not have adaptive for high-temp. furnace material.When Research for Feeding Raw Materials System transportation be hot high-temp. furnace material the time, each components interior of whole blast furnace system all must be carried out heat insulation protection Design.Otherwise the temperature of each parts surface can be very high, directly affects operational safety.How to make the associated components of material flow gate device can normally move and realize the design function of this device in hot environment, this is a quite thorny design challenges really.

The utility model content

The technical problems to be solved in the utility model is: for the technical problem of above-mentioned existence, a kind of blast furnace material flow gate device that is applicable to high-temp. furnace material is provided, can effectively solve the high temperature protection problem of hot environment lower seal, conscientiously reduce the operation troubles incidence.

For solving the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of material flow gate blow device, described material flow gate mainly comprises valve body, transmission shaft and cylinder drive, each side transmission shaft is fixed on valve body by bearing support and connects valve plate in valve body; It is characterized in that: on valve body mid-section body inwall, heat-insulating heat-preserving material is set, buries blow device in heat-insulating heat-preserving material underground and also reserve purge hole and purge the path for blow device; Described blow device is a plurality of independent parallel settings and the circular channel take center transmission shaft as rotation center, and an end of circular channel stretches out and passes valve body from annular and is connected with the outside air supply plant; On the circular channel, the interval arranges gas hole, and the purging path of gas hole is spread to setting and purged the zone.

By technique scheme, blow device mainly is made of the first and second purge passage of two independent parallel; Each free steel pipe dish of first and second purge passage becomes a center take transmission shaft as the rotation center circular channel, and circular channel one end stretches out from annular and passes valve body and be connected with the outside air supply plant; First and second purge passage reduction of fractions to a common denominator Tong Guo the first and second Plate Weldings on the valve body mid-section body; The first and second steel plates are fixed on valve interior wall; Face toward high-temp. furnace material one side on the first purge passage, be provided with a plurality of cone shape slotted holes along the circumferential direction of circular passage is evenly spaced apart, two round centers of each cone slotted hole are the angle setting with the perpendicular vertical and horizontal center line of the first purge passage respectively; The second purge passage is offered two circular cone body openings along the circumferential direction of circular passage every one section setpoint distance facing to high-temp. furnace material one side, the hole circle center of these two cones respectively with the second purge passage perpendicular vertically and horizontal center line be the angle setting.

By technique scheme, described the first purge passage purges the path and spreads towards interior valve plate and outer valve plate, and the purging path of described the second purge passage valve plate and axle connecting portion is outward spread.

By technique scheme, each side transmission shaft by outer pass toward in bearing support and with the most contiguous step of bearing support on, a permanent seat is set, permanent seat is connected with transmission shaft by screw assembly; Filling heat insulation preservation material between the inboard of permanent seat and transmission shaft.

Singularity due to Working environment, when the blast furnace material flow gate device design that is applicable to high-temp. furnace material, need to adopt the high temperature safeguard procedures such as cooling, purging and radioprotective, the local temperature of reduce material flow gate associated components, each parts are all worked in the tolerable temperature scope, thereby make material flow gate integral body reach design function, this work-ing life and reliability to material flow gate has great help.The high temperature safeguard procedures such as that the utility model adopts is cooling, purging and radioprotective; developed a kind of blast furnace material flow gate device that is applicable to high-temp. furnace material; can make the sealing member local temperature unlikely too high, can effectively protect related components, the safe operation of support equipment.

The utlity model has following advantage and positively effect:

(1) relative traditional design, valve flange adopt water-cooled, arrange heat insulation in valve body and purge structure, and transmission shaft adopts water-cooling structure, effectively reduces the deformation effect that transmission shaft and valve plate high-temperature heating cause; The blanking operating mode of applicable high-temp. furnace material can be effectively at high temperature protected the related components part, reduces local temperature, connects effect better.Adopt that water cycle is cooling, purging and Anti-Radiation Countermeasures, the sealing member of temperature end can be worked under nominal situation, effectively prevent overflowing of blast furnace gas, can guarantee the security that under hot environment, blast furnace is produced.

(2) adopting two oil cylinders to be positioned at both sides drives separately, the both sides valve plate is not connected with each side transmission shaft and mutually interferes, design, manufacturing and installation procedure are simplified, arrangement convenience, volume is little and stabilized structure, be convenient to material stream is regulated control, control simply, transmission is accurate, can avoid preferably producing larger material stream segregation phenomena; Can be applicable to simultaneously and tank blast furnace and string tank blast furnace.

(3) be connected reliably under each side transmission shaft of the utility model and valve plate high temperature, can local thermal expansion be absorbed by the compensation of self, can not form local internal stress, in each axle and valve plate syndeton, owing to adopting spline that each valve plate is connected respectively with axle, be convenient on the one hand easy disassembly, centering is good, can transmit larger moment of torsion, can adapt to the strong needs that large capacity blast furnace is regulated material stream, on the other hand, when whole valve plate temperature distortion, in the junction, spline can absorb the thermal expansion distortion of a part due to the self-compensation situation function, and this hardwired mode of available technology adopting screw is connected the suspension arm on each valve plate with transmission shaft, can not carry out self-compensating to the thermal expansion of component under high temperature, might also can form larger internal stress, thereby this screw connects the blast furnace operating mode that is not suitable for high-temp. furnace material.In addition, when whole valve plate temperature distortion, also namely two valve plates and transmission shaft junction, right side freely, can be whole along the right side transmission shafts to small movements due to the right side of outer valve plate and interior valve plate, thereby realize that the distortion that overall thermal expands cushions.

(4) valve plate adopts hub splines to be connected with axle, avoids preferably the cost allowance of integral replacing; Being linked and packed, it is quick to change, and laying construction is easy, and is safe, has reduced the personal risk when changing component under operator's labour intensity and high temperature.

Description of drawings

Fig. 1 is the structural representation (stereographic map) according to the material flow gate of the utility model enforcement;

Fig. 2 is material flow gate device blow device part sectioned view of the present utility model (left side);

Fig. 3 is the part sectioned view (left and right sides) of material flow gate device blow device of the present utility model;

Fig. 4 is the local bearing support of the C of Fig. 2 and axle assembled portion enlarged view;

Fig. 5 is the A partial enlarged drawing of Fig. 2;

Fig. 6 is the B partial enlarged drawing of Fig. 2;

Fig. 7 is that the K of Fig. 5 is to partial view;

Fig. 8 is that the intake-outlet of bearing support of the present utility model is arranged schematic diagram;

Fig. 9 is the circumferential layout of the first purge passage 19 of the present utility model and the second purge passage 22;

Figure 10 is lower abrasion-proof backing block schematic three dimensional views of the present utility model;

Figure 11 is inner housing schematic three dimensional views of the present utility model;

Figure 12 is upper abrasion-proof backing block schematic three dimensional views of the present utility model;

Figure 13 is left side drive shafts of the present utility model and two valve plate syndeton schematic diagram (the local P enlarged view of Fig. 3);

Figure 14 is right side of the present utility model transmission shaft and two valve plate syndeton schematic diagram (the local M enlarged view of Fig. 3).

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing 1-14 and following examples, but do not limit the utility model.

As Fig. 1-14, the blast furnace material flow gate device that is applicable to high-temp. furnace material of implementing according to the utility model mainly is comprised of valve body, cylinder drive (perhaps also can be changed to motor driver), bearing support assembling, blow device, liner plate assembling and valve plate assembling etc.

As Fig. 1 and 2, valve body is welded to each other by valve body mid-section body 5, upper flange 1, upper flange intake-outlet 2, upper flange bailey wall 18, lower flange bailey wall 27, lower flange intake-outlet 6 and lower flange 7 and forms.Have bolt hole on upper flange 1 and lower flange 7 circumference, make the material flow gate device, can be connected with top, other component of bottom by bolt assembly.As Fig. 1 and 4, upper flange bailey wall 18 forms a hollow ring space along valve body mid-section body 5 central rotations, weld hereinto a right-angle triangle steel plate in idle loop shape space, a square edge of right-angle triangle steel plate is welded in the below of upper flange 1, and another square edge is welded on valve body mid-section body 5.Upper flange intake-outlet 2 by two steel-pipe weldings on upper flange bailey wall 18, one is water-in, one is water outlet, lay respectively to separate 18 rotations of upper flange bailey wall generate hollow ring space the right-angle triangle steel plate both sides and be close to this steel plate setting, like this after cold water enters from water-in, flow out by water outlet again after one week along upper flange bailey wall 18 circumferential flow, form the circulation waterway of a sealing, thereby play the effect of local cooling.

Equally, lower flange bailey wall 27 also forms a hollow ring space along valve body mid-section body 5 central rotations, weld hereinto a right-angle triangle steel plate in idle loop shape space, a square edge of right-angle triangle steel plate is welded in the top of lower flange 7, and hypotenuse is welded on valve body mid-section body 5; Lower flange intake-outlet 6 by two steel-pipe weldings on lower flange bailey wall 27, one is water-in, one is water outlet, lay respectively to separate 27 rotations of lower flange bailey wall generate hollow ring space the right-angle triangle steel plate both sides and be close to this steel plate setting, like this after cold water enters from water-in, flow out by water outlet again after one week along lower flange bailey wall 27 circumferential flow, form the circulation waterway of a sealing, thereby play the effect of local cooling.

Shearing pin support 11 is welded on valve body, has a through hole that can insert shearing pin 12 on shearing pin support 11.

Cylinder drive lays respectively at the material flow gate device relative left and right sides that is in line.Left and right sides oil cylinder set-up mode is identical, and oil cylinder 3 heads link together by bearing pin 24 and actuating arm 9, and oil cylinder 3 middle part gudgeons are hinged by oil cylinder gudgeon flap 10 and cylinder support 4, and cylinder support 4 is welded in valve body mid-section body 5.

As Fig. 4-6, bearing support assembly structure left and right is identical, all mainly is comprised of the first bolt assembly 23, the second bolt assembly 30, the first sealing member 31, the first O-ring seals 32, bearing 33, spacer ring 34, the first door 35, the second O-ring seals 36, big nut 37, locked spacer 38, swivel joint 39, cushion block 40, spacer ring 41, the second sealing member 42, the 3rd bolt assembly 43, the 3rd O-ring seals 44, the second door 45, bearing support 46, the 4th bolt assembly 47 and both sides transmission shaft 48.1 and 48.2 etc.Each transmission shaft 48.1(or 48.2) be arranged in bearing support 46 by two bearings arranged side by side 33,33 of two bearings separate by the spacer ring 34 that is arranged in bearing support 46; Outer, the inboard of bearing support 46 is connected with valve body mid-section body 5 by the 4th bolt assembly 47, and the first O-ring seals 32 is set on bearing support 46 medial surfaces and valve body mid-section body 5 seals; The inner side-wall of bearing support 46 is along being connected with inboard the first door 35 by the second bolt assembly 30, and the first sealing member 31 is arranged on transmission shaft 48.1(or 48.2), between bearing support 46 and the first door 35; Outer, the outside of bearing support 46 is connected with the second door 45 by the 3rd bolt assembly 43, and the 3rd O-ring seals 44 is set on bearing support 46 outer sides and the second door 45 seals; The outer side of the second door 45 is connected with the outside the first door 35 by the second bolt assembly 30, central interior and the transmission shaft 48.1(or 48.2 of the outside the first door 35) between spacer ring 41, the second sealing members 42 also be set be arranged in space between spacer ring 41 and the outside the first door 35; The inner ring butt of the medial extremity of spacer ring 41 and outer bearing 33, the outboard end of spacer ring 41 stretch out the outside the first door 35 outboard ends and are connected to the center ring medial extremity of actuating arm 9; Transmission shaft 48.1(or 48.2) be fixed in the center ring of actuating arm 9, and set gradually cushion block 40, locked spacer 38 and big nut 37 after passing the center ring of actuating arm 9.Wherein the first sealing member 31, the first O-ring seals 32, the second O-ring seals 36, the 3rd O-ring seals 44 and the second sealing member 42 are mainly to prevent from that blast furnace gas from coming out to cause security incident.

As Fig. 2-4, each transmission shaft 48.1(or 48.2) be positioned at a valve body outer end center and have a hole that does not all penetrate or blind hole, swivel joint 39 is located to pack in aperture in this hole, first bolt assembly 23 and 48.1(or 48.2 of swivel joint 39 by axially arranging) link together.Inlet and outlet water by swivel joint 39 forms a refrigeration cycle process, thereby reaches the purpose of cooling transmission shaft and shaft attachment temperature.At each transmission shaft 48.1(or 48.2) toward interior projecting shaft bearing 46 and with the most contiguous step of bearing support 46 on, a permanent seat 50 is set, permanent seat 50 is connected with transmission shaft by screw assembly.Filling heat insulation preservation material 17 between the inboard of permanent seat 50 and transmission shaft, less in order to guarantee the ventilation of local location blast furnace gas, be convenient to carry out the local temperature thermal insulation protection by gas curtain.

As Fig. 2-4, the valve plate assembling is comprised of with outer valve plate 28 interior valve plate 29.Outer valve plate 28 links together with left side drive shafts 48.1 by outer valve plate spline 59, interior valve plate 29 links together with right side transmission shaft 48.2 by interior valve plate spline 60, the opening down setting of valve plate and be complementary with the lower end of inner housing 16 and lower abrasion-proof backing block 14 and form the valve pocket (Figure 4 and 5 all omit not shown) that holds material stream, profile can be done camber, also can do other forms such as diamondwise, but in needing to guarantee, valve plate 29 is as far as possible symmetrical with outer valve plate 28 front and back opening in opening process, and is less with the material stream segregation that guarantees blast furnace burden.When two valve plates were closed, interior valve plate 29 was fully closed with the necessary assurance of outer valve plate 28, and imperforation prevents that blast furnace burden from overflowing.

As Fig. 3 and 13, in valve body, left side drive shafts 48.1 right parts (medial extremity) are by outer past interior outer valve plate 28 and the interior valve plate 29 of all connecting successively.Outer left side drive shafts 48.1 with the syndeton of each valve plate is: outer valve plate 28 centers and left side drive shafts 48.1 junctions are split into stepped bore, and the stepped bore inwall that the first spline inner sleeve 66 outer walls are pasting outer valve plate 28 is welded in this hole; The medial extremity periphery of left side drive shafts 48.1 and outer valve plate 28 junctions be processed into week outwards the inwall of valve plate spline 59, the first spline inner sleeves 66 be connected and fixed with left side drive shafts 48.1 by outer valve plate spline 59.Radially circumferentially be evenly equipped with three straight pins 67 along transmission shaft in the middle part in the first spline inner sleeve 66, straight pin 67 along transmission shafts to from left to right one insert in the first spline inner sleeve 66 respective aperture, insert in outer valve plate 28 corresponding hole the other end.Its Main Function is the local strength of joint of strengthening the first spline inner sleeve 66 and outer valve plate 28.When spline has concentrated wear, the first spline inner sleeve 66 can be taken away rear heavy table and change to the first new spline inner sleeve 66, thereby avoid in whole outer valve plate 28 is changed.The junction of interior valve plate 29 centers and right side transmission shaft 48.2 also is split into stepped bore, wears in this hole into the first axle sleeve 65, by along the circumferential equally distributed pin 64 of transmission shaft, interior valve plate 29 and the first axle sleeve 65 being fixed together; The medial extremity of left side drive shafts 48.1 stretches in the first axle sleeve 65, and interior valve plate 29 is supported on by the first axle sleeve 65 can't help left side drive shafts 48.1 and drive on left side drive shafts 48.1.The first baffle plate 62 is installed in the right side of left side drive shafts 48.1, by the first screw assembly 63, the first baffle plate 62 is fixed together with left side drive shafts 48.1.Thus, left side drive shafts 48.1 drives outer valve plate 28 front and back by being fixedly connected with of outer valve plate spline 59 and stirs.

As Fig. 3,14, in valve body, the left part of right side transmission shaft 48.2 (medial extremity) is by outer past interior outer valve plate 28 and the interior valve plate 29 of all connecting successively.Right side transmission shaft 48.2 with the syndeton of each valve plate is: the junction of outer valve plate 28 centers and right side transmission shaft 48.2 is split into stepped bore, wear in this hole into the second axle sleeve 70, by along circumferential equally distributed the first screw assembly 71 of transmission shaft, outer valve plate 28 and the second axle sleeve 70 being fixed together; Right side transmission shaft 48.2 passes the second axle sleeve 70, and outer valve plate 28 is supported on by the second axle sleeve 70 can't help right side transmission shaft 48.1 and drive on right side transmission shaft 48.2.Interior valve plate 29 centers and right side transmission shaft 48.2 junctions also are split into stepped bore, and in the second spline inner sleeve 69 outer walls are pasting, the stepped bore inwall of valve plate 29 is welded in this hole; In the medial extremity periphery of right side transmission shaft 48.2 and outer valve plate 28 junctions are processed into circumferentially, the inwall of valve plate spline 60, the second spline inner sleeves 69 is connected and fixed with right side transmission shaft 48.2 by interior valve plate spline 60.Radially circumferentially be evenly equipped with three straight pins 67 along transmission shaft in the middle part in the second spline inner sleeve 69, straight pin 67 along transmission shafts to from right to left one insert in the second spline inner sleeve 69 respective aperture, in insert the other end in the corresponding hole of valve plate 28.Its Main Function is the local strength of joint of strengthening the second spline inner sleeve 69 and interior valve plate 29.When spline has concentrated wear, the second spline inner sleeve 69 can be taken away rear heavy table and change to the second new spline inner sleeve 69, thereby avoid in whole interior valve plate 29 is changed.In the left side of right side transmission shaft 48.2, second baffle 68 is installed, by the first screw assembly 63, second baffle 68 and right side transmission shaft 48.2 is fixed together.Thus, in right side transmission shaft 48.2 drives by being fixedly connected with of interior valve plate spline 60, valve plate 29 front and back are stirred.

In each axle shown in Fig. 3,13 and 14 and valve plate syndeton, after left side drive shafts is driven, drive outer valve plate rotation by spline joint, and interior valve plate forms support and connection by axle sleeve and left side drive shafts.After the right side transmission shaft is driven, valve plate rotation in driving by spline joint, and outer valve plate forms support and connection by axle sleeve and right side transmission shaft.When two axles rotated on the contrary, outer valve plate and interior valve plate opened to both sides respectively, regulated thereby form material stream.

at Fig. 3, in each axle shown in 13 and 14 and valve plate syndeton, owing to adopting spline that each valve plate is connected respectively with axle, be convenient on the one hand easy disassembly, centering is good, can transmit larger moment of torsion, can adapt to the strong needs that large capacity blast furnace is regulated material stream, on the other hand, when whole valve plate temperature distortion, on the one hand in the junction, spline can absorb the thermal expansion distortion of a part due to the self-compensation situation function, and this hardwired mode of available technology adopting screw is connected the suspension arm on each valve plate with transmission shaft, can not carry out self-compensating to the thermal expansion of component under high temperature, might also can form larger internal stress, thereby this screw connects the blast furnace operating mode that is not suitable for high-temp. furnace material.In addition, when whole valve plate temperature distortion, also namely two valve plates and transmission shaft junction, right side freely, can be whole along the right side transmission shafts to small movements due to the right side of outer valve plate and interior valve plate, thereby realize that the distortion that overall thermal expands cushions.

As Fig. 2 and 3,16 of 28 of valve body mid-section body 5 and outer valve plates and valve body mid-section body 5 and inner housings be filling heat insulation preservation material 17 also, heat-insulating heat-preserving material 17 with the first purge passage 19, the first steel plate 20, the second steel plate 21, the second purge passage 22 landfills in wherein, and will need the purge hole of the first purge passage 19 and the second purge passage 22 and purge the path to reserve, be convenient to corresponding site is purged.Blow device carries out cooling by purging cold air to reaching spindle unit in valve body.

As shown in Fig. 2,3,5-7,9, blow device mainly is comprised of the first purge passage 19, the first steel plate 20, the second steel plate 21, the second purge passage 22 etc.The first purge passage 19 becomes a circular passage with second purge passage 22 each free steel pipe dishes, this circular passage is all take each side transmission shaft 48.1(or 48.2) the center as rotation center, and stretch out one section from circular passage respectively, in order to be connected with the outside air supply plant, as shown in Figure 9; Be welded on valve body mid-section body 5 by the first steel plate 20 as Fig. 4,5,7, the first purge passage 19, be welded on valve body mid-section body 5 by the second steel plate 21 as Fig. 4,5,8, the second purge passage 22.The inlet mouth 26 of the inlet mouth 25 of outside air supply plant by the second purge passage, the first purge passage with pneumatic transmission in the first purge passage 19 and the second purge passage 22.

The first purge passage 19 is welded in by on the first steel plate 20, on the circular passage of the first purge passage 19, facing toward high-temp. furnace material one side, along the spaced apart slotted hole 61 that is provided with a plurality of cone shapes of the circumferential direction of circular passage, as shown in Fig. 5,7, these slotted holes are along the circumferential direction even all spaced apart, as shown in Figure 9 on circumferential direction several medullary rays that intersect namely represent the round center of cone slotted hole.As shown in Figure 5, two round centers of each cone slotted hole 61 respectively with the first vertical medullary ray of purge passage 19 and horizontal center line Φ 1 at an angle and Φ 2, to guarantee being purged to fully interior valve plate 29 and outer valve plate 28 region of interest, and form one gas curtain at respective regions, in the interval that the close position that stops coal gas of high temperature to enter to the first door 35, the second bolt assembly 30 and axle forms, the unlikely high-temperature zone that forms herein works sealing member under security context.

Be welded in by on the second steel plate 21 as Fig. 6,9, the second purge passage 22, be provided with two circular cone body openings at it facing to high-temp. furnace material one side is spaced apart, these holes are along the circumferential direction even all to distribute; Two cone hole circle centers respectively with the second vertical medullary ray of purge passage 22 and horizontal center line Φ 3 at an angle and Φ 4, to guarantee to be purged to fully the close position of the first door 35, the second bolt assembly 30 and axle, and at this interval gas curtain that forms, prevent that the interior blast furnace coal gas of high temperature of valve body from through herein, damage sealing member.

As shown in Figure 8, cast out a boss outside the large flange of bearing support 46, have two holes on this boss: prosopyle a and posticum b.As Fig. 4, have bearing support cooling trough 49 at bearing support 46 near the blast furnace burden side, also be provided with a dividing plate in this bearing support cooling trough 49, prosopyle a and posticum b are separated in the dividing plate both sides, prosopyle a passes into water coolant from a side, after covering the stroke of whole tank, from the posticum b outflow of opposite side, thereby reach the circulating cooling function.

As Fig. 1,2,10-12, the liner plate assembling is comprised of upper abrasion-proof backing block 13, lower abrasion-proof backing block 14 and inner housing 16 etc.As Figure 13, inner housing 16 is comprised of the up and down two-section, on be truncated into the funnel housing, under be truncated into cylindrical shell; Offer respectively circumferential uniform bolt hole 54, oblong aperture 53 and four square holes 55 separately on the funnel housing of inner housing 16; Inner housing 16 funnel housing outer walls be designed with respectively two circles between the upper and lower every the boss 52 and 56 in full circle week, these two boss mainly play the effect of stiffening web, boss 56 is being affiliated to of convenient upper abrasion-proof backing block hangers 15 also.Bolt hole 54 passes boss 56.As Figure 14, upper abrasion-proof backing block 13 is the coniform ring body that can be placed in the upper funnel housing of inner housing 16, and on each, the outer wall of abrasion-proof backing block 13 is designed with two small boss 57 and a upper abrasion-proof backing block hangers 15.The degree that fits tightly when boss 57 guarantees that each upper abrasion-proof backing block 13 is connected as a single entity with inner housing 16 by bolt assembly and bolt hole 54 is unlikely making that on each, abrasion-proof backing block 13 and inner housing 16 swing.Upper abrasion-proof backing block 13 is processed into 8, all leaves certain gap between every, can have enough spaces not interfere after abrasion-proof backing block 13 expanded by heating in assurance.On each, the inwall of abrasion-proof backing block 13 is designed with hanger 58, in the time of need to hanging away replacing, can upper abrasion-proof backing block 13 be hung away by hanging bait 58.Upper abrasion-proof backing block hangers 15 wore the oblong aperture 53 on inner housing 16, and the lower bevel of upper abrasion-proof backing block hangers 15 rides against oblong aperture 53 peripheries of inner housing 16, plays certain support, and formed a connection state alive.When upper abrasion-proof backing block 13 expanded by heating, in connection, the bolt assembly of abrasion-proof backing block 13 and inner housing 16 is fixed the top of upper abrasion-proof backing block 13, some compensating motions can be carried out by the lower bevel of upper abrasion-proof backing block hangers 15 in the bottom, are unlikely to form larger thermal stresses.

As Figure 10, lower abrasion-proof backing block 14 is the cylindrical shell shell in the bottom cylindrical shell that can be placed into inner housing 16, lower abrasion-proof backing block 14 cylindrical shell shell upper limb outer walls are uniform four casting lug thereons 51 circumferentially, and lower abrasion-proof backing block 14 inserts by casting lug thereon 51 to be completed in four square holes 55 of inner housings 16 and being connected of inner housing 16.

When the blanking of blast furnace heat material, upper abrasion-proof backing block 13 and lower abrasion-proof backing block 14 can protect inner housing 16 not to be worn, and when needs replace with abrasion-proof backing block 13 or lower abrasion-proof backing block 14, can complete more according to corresponding dismounting and installation process changing jobs.

Arranged on left and right sides oil cylinder 3 is the actuating arm 9 of each self-driven arranged on left and right sides respectively, actuating arm 9 rotarily drives respectively transmission shaft 48.1(or 48.2) rotation, drive respectively interior valve plate 29 and outer valve plate 28 relatively rotates by transmission shaft, form an opening, the size of opening can realize regulating by the stroke of controlling oil cylinder 3, thereby reaches the adjusting of blast furnace burden.

Equally, the present embodiment is not in the situation that do any change and the blast furnace material flow regulator of adjustment when also being applicable to blast furnace burden and being cold burden.

If for Cost reduction removes the high temperature safeguard procedures such as relevant cooling, purging and radioprotective in this example, the blast furnace material flow regulator when equally also being applicable to blast furnace burden and being cold burden.

Above disclosed is only preferred embodiment of the present utility model; certainly can not limit with this interest field of the utility model; therefore the equivalence of doing according to the utility model claim changes, and still belongs to protection domain of the present utility model as change and the improvement that processing parameter or device are made.

Claims (4)

1. material flow gate blow device, described material flow gate mainly comprises valve body, transmission shaft and cylinder drive, each side transmission shaft is fixed on valve body by bearing support and connects valve plate in valve body; It is characterized in that: on valve body mid-section body inwall, heat-insulating heat-preserving material is set, buries blow device in heat-insulating heat-preserving material underground and also reserve purge hole and purge the path for blow device; Described blow device is a plurality of independent parallel settings and the circular channel take center transmission shaft as rotation center, and an end of circular channel stretches out and passes valve body from annular and is connected with the outside air supply plant; On the circular channel, the interval arranges gas hole, and the purging path of gas hole is spread to setting and purged the zone.

2. material flow gate blow device according to claim 1, it is characterized in that: blow device mainly is made of the first and second purge passage of two independent parallel; Each free steel pipe dish of first and second purge passage becomes a center take transmission shaft as the rotation center circular channel, and circular channel one end stretches out from annular and passes valve body and be connected with the outside air supply plant; First and second purge passage reduction of fractions to a common denominator Tong Guo the first and second Plate Weldings on the valve body mid-section body; The first and second steel plates are fixed on valve interior wall; Face toward high-temp. furnace material one side on the first purge passage, be provided with a plurality of cone shape slotted holes along the circumferential direction of circular passage is evenly spaced apart, two round centers of each cone slotted hole are the angle setting with the perpendicular vertical and horizontal center line of the first purge passage respectively; The second purge passage is offered two circular cone body openings along the circumferential direction of circular passage every one section setpoint distance facing to high-temp. furnace material one side, the hole circle center of these two cones respectively with the second purge passage perpendicular vertically and horizontal center line be the angle setting.

3. material flow gate blow device according to claim 2 is characterized in that: described the first purge passage purges the path and spreads towards interior valve plate and outer valve plate, and the purging path of described the second purge passage valve plate and axle connecting portion is outward spread.

4. one of according to claim 1-3 described material flow gate blow devices, it is characterized in that: each side transmission shaft by outer pass toward in bearing support and with the most contiguous step of bearing support on, a permanent seat is set, and permanent seat is connected with transmission shaft by screw assembly; Filling heat insulation preservation material between the inboard of permanent seat and transmission shaft.

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