CN104975120A - Flattening device and method for carbon filler of blast furnace bottom water-cooled tube - Google Patents
Flattening device and method for carbon filler of blast furnace bottom water-cooled tube Download PDFInfo
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- CN104975120A CN104975120A CN201510427535.1A CN201510427535A CN104975120A CN 104975120 A CN104975120 A CN 104975120A CN 201510427535 A CN201510427535 A CN 201510427535A CN 104975120 A CN104975120 A CN 104975120A
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Abstract
The invention discloses a flattening device and method for carbon filler of a blast furnace bottom water-cooled tube. The flattening device and method for the carbon filler of the blast furnace bottom water-cooled tube solve the problems that the flatness of the surface of carbon filler is inconsistent with that of the upper surfaces of furnace bottom horizontal I beams. The flattening device for the carbon filler of the blast furnace bottom water-cooled tube comprises a device body and a handle arranged on the upper portion of the device body. A unilateral blade is arranged on the lower portion of the device body, and the cutting edge of the unilateral blade is arranged in the length direction of the device body and is flush with the lower surface of the device body. During working, the left end and the right end of the cutting edge can be attached to the upper surfaces of two adjacent furnace bottom horizontal I beams respectively and cutting movement is carried out. According to the flattening method, the flattening device is used for flattening. During working, the left end and the right end of the cutting edge in the flattening device can be attached to the upper surfaces of the two adjacent furnace bottom horizontal I beams respectively, cutting movement is carried out by taking the cutting edge as the front end of the device, and thus it is guaranteed that the flatness of the surface of the flattened carbon filler is consistent with that of the upper surfaces of the furnace bottom horizontal I beams.
Description
Technical field
The present invention relates to a kind of screeding device and equating method, particularly a kind of Blast Furnace Bottom water cooling tube carbon packing screeding device and equating method.
Background technology
Laying of Blast Furnace Bottom steel plate must ensure level, fits tightly to make itself and furnace bottom supporting plane.Arrange like this and just can guarantee that furnace high-temperature is successively delivered on steel plate of furnace hearth equably when smelting; given with in the carbon packing of its lower surface plane contact by drop-bottom going down again; and taken away by the high temperature passed in stove by the furnace bottom water cooling tube in carbon packing, thus reach the object of protection furnace foundation structure from high temperature.Therefore, when wrapping up the carbon packing of water cooling tube between construction furnace hearth level I-beam, layering is wanted to ram the compactness of pressing and reaching design requirements 40%, ram the carbon packing surface after having pressed to need to reach one to flatness requirement with furnace hearth level I-beam upper surface, otherwise steel plate of furnace hearth just can not with carbon packing intimate surface contact, rear furnace high-temperature of going into operation just can not pass downwardly through carbon packing and be delivered evenly to around furnace bottom water cooling tube, cause bottom temperature uneven, blast furnace will be impaired because of localized hyperthermia, reduce its work-ing life.
At present, for the construction on carbon packing surface, traditional method is: after carbon packing rammer pressure completes, by hammering equating carbon packing surface.The tradition operational method operational difficulty on hammering equating carbon packing surface, construction speed are slow, planeness after surfacing is difficult to accomplish consistent with furnace hearth level I-beam upper surface planeness, and affecting construction quality is normally use in the blast furnace later stage to leave hidden danger.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of easy and simple to handle and can guarantee the Blast Furnace Bottom water cooling tube carbon packing screeding device that the planeness on carbon packing surface after repairing is consistent with the planeness of furnace hearth level I-beam upper surface.
The technical solution adopted for the present invention to solve the technical problems is: Blast Furnace Bottom water cooling tube carbon packing screeding device, comprises apparatus main body and the handle being arranged on device body upper; The bottom of described apparatus main body is provided with monolateral sword, and the cutting edge of described monolateral sword arranges along the length direction of apparatus main body and flushes with the lower surface of apparatus main body; During work, the upper surface that the two ends, left and right of described cutting edge can be fitted in two adjacent furnace hearth level I-beams respectively does cutting movement.
Further, the length of described cutting edge is greater than the shortest distance between two adjacent furnace hearth level I-beam upper surfaces, and is less than or equal to the longest distance between two adjacent furnace hearth level I-beam upper surfaces.
Further, described monolateral sword comprises rake face and rear knife face, and the position that rake face and rear knife face intersect is cutting edge; Described rake face comprises cancave cambered surface section and scarp section, and the distance of cancave cambered surface section front and rear edge is greater than the tilt length of scarp section, and the lower end of cancave cambered surface section is connected with the upper end arc transition of scarp section, and lower end and the rear knife face of scarp section intersect; Described rear knife face parallels with the lower surface of apparatus main body.
Further, described handle is two, and is symmetrical arranged on apparatus main body.
Further, described handle is L-shaped, comprises longitudinal section and the traversing section that be connected vertical with longitudinal section lower end; Handle is welded and fixed by traversing section and apparatus main body, is provided with floor between the apparatus main body in traversing section opposition side and longitudinal section.
Further, described apparatus main body comprise linked together by arc transition successively from the bottom up bottom, waist and top, the width at described bottom and top is greater than the width of waist; Described handle is vertically set on the upper end at top, and described monolateral sword is arranged on that bottom is upper and cutting edge is one of limit that bottom lower surface length is the longest.
Further, this device also comprises pneumatic pick; The waist side being positioned at monolateral sword opposition side is provided with set collar, the fit heads of the circular hole on described set collar and the pick rod of pneumatic pick; During work, the head of pick rod is inserted in the circular hole on set collar, orders about this device by pneumatic pick and do cutting movement using the cutting edge of monolateral sword as the front end of this device.
Further, described set collar is two, and is symmetrical arranged on the side of waist.
Further, the lower surface of described bottom is horizontally disposed with; Described waist is obliquely installed, and makes the waist side at set collar place facing to oblique upper; Described handle parallels with waist.
Present invention also offers a kind of Blast Furnace Bottom water cooling tube carbon packing equating method, after carbon packing rammer pressure between adjacent two furnace hearth level I-beams is completed, adopt above-mentioned Blast Furnace Bottom water cooling tube carbon packing screeding device to carry out equating to carbon packing surface, comprise the following steps:
Step one, perpendicular to the mode of furnace hearth level I-beam, above-mentioned Blast Furnace Bottom water cooling tube carbon packing screeding device is positioned over the upper surface of furnace hearth level I-beam with cutting edge, and the two ends, left and right of cutting edge are fitted with the upper surface of adjacent two furnace hearth level I-beams respectively;
Step 2, operator hold handle and certain angle that tilts towards the front of cutting edge;
Step 3, other operator are by the circular hole on the pick rod jacking set collar of pneumatic pick;
Step 4, the operator of hand-held pneumatic pick open pneumatic pick, cutting movement is done along the length direction of furnace hearth level I-beam with the surging force thrust unit main body of pneumatic pick, the operator holding handle are exerted a force straight down by handle and make the two ends, left and right of cutting edge fit with the upper surface of furnace hearth level I-beam and take advantage of a situation all the time to move ahead, the carbon packing of Blast Furnace Bottom water cooling tube carbon packing screeding device excision outstanding furnace hearth level I-beam upper surface place horizontal plane, makes the planeness on carbon packing surface consistent with furnace hearth level I-beam upper surface planeness.
The invention has the beneficial effects as follows: this apparatus structure is simple, easy handling; Operator carry out equating by holding handle, very convenient; Monolateral sword ensure that the planarization of equating; During work, in this device, the two ends, left and right of cutting edge can fit with the upper surface of adjacent two furnace hearth level I-beams respectively, and do cutting movement with the front end that cutting edge is this device, ensure that the planeness on the carbon packing surface after finishing is consistent with the planeness of furnace hearth level I-beam upper surface, and then ensure that construction quality, indirectly improve the work-ing life of blast furnace.In addition, this device is by cutting the carbon packing surface of compacting, and to tamping, shaping carbon packing disturbance is less, ensure that the requirement of construction degree of compactness.Scarp section ensure that the sharpness of monolateral sword, and the carbon packing that cancave cambered surface section can be good at machining away is led, and avoids apparatus main body buildup, ensure that the efficiency of equating; And cancave cambered surface section also enhances the structural strength of monolateral sword.Traversing section and floor all improve the stability that handle is connected with apparatus main body.Pneumatic pick can drive this device to cut, and improves practicality and the cutting effect of this device, reduces hand labor intensity; Set collar ensure that the point of application of pneumatic pick is in circular hole all the time, and the motivating force of pneumatic pick is fully utilized.
Accompanying drawing explanation
Fig. 1 is the enforcement structural representation of Blast Furnace Bottom water cooling tube carbon packing screeding device;
When Fig. 2 is equating, Blast Furnace Bottom water cooling tube carbon packing screeding device is positioned over the front view of furnace hearth level I-beam upper surface;
When Fig. 3 is equating, the working state schematic representation of Blast Furnace Bottom water cooling tube carbon packing screeding device;
Fig. 4 is the enforcement structural representation of a kind of preferred version of Blast Furnace Bottom water cooling tube carbon packing screeding device;
Fig. 5 is the partial enlarged drawing at A place in Fig. 4;
Fig. 6 is the enforcement structural representation of the another kind of preferred version of Blast Furnace Bottom water cooling tube carbon packing screeding device;
Be labeled as in figure: apparatus main body 1, monolateral sword 11, cutting edge 111, rake face 112, cancave cambered surface section 1121, scarp section 1122, rear knife face 113, bottom 12, waist 13, set collar 131, top 14, handle 2, longitudinal section 21, traversing section 22, floor 3, pneumatic pick 4, pick rod 41, furnace hearth level I-beam 5, furnace bottom water cooling tube 6 and carbon packing 7.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Shown in composition graphs 1 and Fig. 2, Blast Furnace Bottom water cooling tube carbon packing screeding device, comprises apparatus main body 1 and the handle 2 being arranged on apparatus main body 1 top; Operator are undertaken operating this device by gripping handle 2 and carry out equating, the upper end of handle 2 is provided with usually is convenient to hand-held grasping part, can there be various structures described grasping part, such as, inverted U-shaped or annular structure, is suitable for bending wavy shaped configuration of finger-joint etc.; The bottom of described apparatus main body 1 is provided with monolateral sword 11, and monolateral sword 11 can be the structure with apparatus main body 1 one, namely directly shaping in the polishing of the bottom of apparatus main body 1 by emery wheel; Monolateral sword 11 also can be the structure be connected with apparatus main body 1, is about to make shaping monolateral sword 11 and is linked together by the bottom of the modes such as screw, bolt, pin or welding and apparatus main body 1; The cutting edge 111 of described monolateral sword 11 arranges along the length direction of apparatus main body 1 and flushes with the lower surface of apparatus main body 1; Cutting edge 111 linearly segment structure; During work, the upper surface that the two ends, left and right of described cutting edge 111 can be fitted in two adjacent furnace hearth level I-beams 5 respectively does cutting movement, namely must ensure that the length of cutting edge 111 is greater than the shortest distance between two adjacent furnace hearth level I-beam 5 upper surfaces; Arrange when just can make equating like this, the two ends, left and right of cutting edge 111 can fit with the upper surface of adjacent two furnace hearth level I-beams 5 respectively, and then cutting edge 111 just can be made parallel with the upper surface of furnace hearth level I-beam 5, finally can guarantee that the planeness on carbon packing 7 surface after repairing is consistent with the planeness of furnace hearth level I-beam 5 upper surface.Wherein, the two ends, left and right of cutting edge 111 refer to the two ends of cutting edge 111 length direction; Shortest distance between two adjacent furnace hearth level I-beam 5 upper surfaces refers to the distance between two adjacent furnace hearth level I-beam 5 upper surfaces interior acies in opposite directions, namely in Fig. 2 the right-hand member of left side furnace hearth level I-beam 5 upper surface to the distance of the left end of right side furnace hearth level I-beam 5 upper surface.
On the basis of the above, in order to make single screeding device only carry out equating to carbon packing 7 upper surface of the single furnace bottom water cooling tube 6 of parcel, the length of described cutting edge 111 is less than or equal to the longest distance between two adjacent furnace hearth level I-beam 5 upper surfaces.Be arranged so that multiple screeding device can carry out equating so simultaneously, improve the efficiency of the equating of carbon packing 7 bottom whole blast furnace.Wherein, the longest distance between two adjacent furnace hearth level I-beam 5 upper surfaces, namely refers to the distance of left end to the right-hand member of right side furnace hearth level I-beam 5 upper surface of furnace hearth level I-beam 5 upper surface in left side in Fig. 2.
As a preferred embodiment of the present invention, shown in composition graphs 4 and Fig. 5, described monolateral sword 11 comprises rake face 112 and rear knife face 113, and the position that rake face 112 and rear knife face 113 intersect is cutting edge 111; Described rake face 112 comprises cancave cambered surface section 1121 and scarp section 1122, the distance of cancave cambered surface section 1121 front and rear edge is greater than the tilt length of scarp section 1122, the lower end of cancave cambered surface section 1121 is connected with the upper end arc transition of scarp section 1122, and lower end and the rear knife face 113 of scarp section 1122 intersect; Described rear knife face 113 parallels with the lower surface of apparatus main body 1.The distance of cancave cambered surface section 1121 front and rear edge and the chord length corresponding to cancave cambered surface section 1121, the distance of usual cancave cambered surface section 1121 front and rear edge is more than the tilt length twice of scarp section 1122.Wherein, cancave cambered surface section 1,121 one aspect can strengthen the structural strength of monolateral sword 11, and the carbon packing 7 that can be good at machining away is led on the other hand, and avoiding device main body 1 buildup, ensure that the efficiency of equating.Scarp section 1122 ensure that the sharpness of monolateral sword 11, makes carbon packing 7 surface after repairing more smooth.
When considering that operator's gripping handle 2 operates, dynamics is less, and equating effect is general; So conveniently two operator's gripping handles 2 carry out equating to reach better equating effect, and described handle 2 is two and is symmetrical arranged on apparatus main body 1.Preferably, as shown in Figure 2, described handle 2 is L-shaped, comprises longitudinal section 21 and the traversing section 22 that be connected vertical with longitudinal section 21 lower end; Handle 2 is welded and fixed by traversing section 22 and apparatus main body 1, between the apparatus main body 1 and longitudinal section 21 of traversing section 22 opposition side, be provided with floor 3; Traversing section 22 opposition side refers to the mirror image side of side, traversing section 22 place line centered by longitudinal section 21.L shape handle 2 can by a reinforcing bar bending forming, and the length of usual longitudinal section 21 is 400mm.Because when operator adopt this device to carry out equating, general force is comparatively large, and described traversing section 22 and floor 3 can ensure the stability that handle 2 is connected with apparatus main body 1.
Concrete, as shown in Figure 1, Figure 2, described in Fig. 3, Fig. 4 and Fig. 6, described apparatus main body 1 comprise linked together by arc transition successively from the bottom up bottom 12, waist 13 and top 14, the width at described bottom 12 and top 14 is greater than the width of waist 13; Described handle 2 is vertically set on the upper end at top 14, described monolateral sword 11 be arranged on bottom 12 on and cutting edge 111 is one of limit that bottom 12 lower surface length is the longest.The apparatus main body 1 of this structure is convenient to making of directly drawing materials, and such as, directly adopts joist steel or rail to make.In the process of equating, the effect of guide can be played in waist 13 and the position of bottom 12 arc transition, again because waist 13 width is less, so waist 13 can store more cut clout, this apparatus main body 1 can cut longer distance and just once clear up.
As a further improvement on the present invention, as shown in figs. 1 and 3, this device also comprises pneumatic pick 4; Pneumatic pick 4 is power with pressurized air, utilizes the hand-held construction equipment of shock action crushing hard objects; Pneumatic pick 4 forms primarily of valve actuating mechanism, beater mechanism and pick rod 41; Waist 13 side being positioned at monolateral sword 11 opposition side is provided with set collar 131, the fit heads of the circular hole on described set collar 131 and the pick rod 41 of pneumatic pick 4; During work, the head of pick rod 41 is inserted in the circular hole on set collar 131, orders about this device by pneumatic pick 4 and do cutting movement using the cutting edge 111 of monolateral sword 11 as the front end of this device.Monolateral sword 11 is positioned at the right side of waist 13 in FIG, and waist 13 side of monolateral sword 11 homonymy refers to the right flank of waist 13, and namely waist 13 side of monolateral sword 11 opposition side refers to the left surface of waist 13.Pneumatic pick 4 can drive this device to cut, and improves practicality and the cutting effect of this device, reduces hand labor intensity; Set collar 131 ensure that the point of application of pneumatic pick 4 is in circular hole all the time, makes the motivating force of pneumatic pick 4 obtain effective utilization.Concrete, described set collar 131 is two, and is symmetrical arranged on the side of waist 13.
Blast Furnace Bottom water cooling tube carbon packing equating method, after carbon packing rammer pressure between adjacent two furnace hearth level I-beams 5 is completed, adopt above-mentioned Blast Furnace Bottom water cooling tube carbon packing screeding device to carry out equating to carbon packing surface, comprise the following steps:
Step one, perpendicular to the mode of furnace hearth level I-beam 5, above-mentioned Blast Furnace Bottom water cooling tube carbon packing screeding device is positioned over the upper surface of furnace hearth level I-beam 5 with cutting edge 111, and the two ends, left and right of cutting edge 111 are fitted with the upper surface of adjacent two furnace hearth level I-beams 5 respectively; As shown in Figure 2; Wherein, perpendicular to furnace hearth level I-beam 5, cutting edge 111 refers to that the length direction of the length direction of cutting edge 111 and furnace hearth level I-beam 5 is perpendicular;
Step 2, operator hold handle 2 and certain angle that tilts towards the front of cutting edge 111, as shown in Figure 3; Operator according to construction convenience come pilot lever 2 tilt angle, usually handle 2 is tilted to construct most horizontal by 30 ° ~ 45 ° angles the most convenient;
Step 3, other operator are by the circular hole on the pick rod 41 jacking set collar 131 of pneumatic pick 4;
Step 4, the operator of hand-held pneumatic pick 4 open pneumatic pick 4, cutting movement is done along the length direction of furnace hearth level I-beam 5 with the surging force thrust unit main body 1 of pneumatic pick 4, the operator holding handle 2 are exerted a force straight down by handle 2 and make the two ends, left and right of cutting edge 111 fit with the upper surface of furnace hearth level I-beam 5 and take advantage of a situation all the time to move ahead, the carbon packing of Blast Furnace Bottom water cooling tube carbon packing screeding device excision outstanding furnace hearth level I-beam 5 upper surface place horizontal plane, makes the planeness on carbon packing surface consistent with furnace hearth level I-beam 5 upper surface planeness.
Handle 2 makes set collar 131 towards oblique upper towards top rake, thus the motivating force of pneumatic pick 4 is tilted down, on the one hand can guarantee fit with the upper surface of furnace hearth level I-beam 5 all the time in the two ends, left and right of cutting edge 111, another aspect can obtain again cutting edge 111 and move ahead and cut.
As another preferred version of the present invention, as shown in Figure 6, the lower surface of described bottom 12 is horizontally disposed with; Described waist 13 is obliquely installed, and makes waist 13 side at set collar 131 place towards oblique upper; Described handle 2 parallels with waist 13.The screeding device of this spline structure operationally, does not need the motivating force tilting handle 2 just can make pneumatic pick 4 again to tilt down, facilitates operation.
Claims (10)
1. Blast Furnace Bottom water cooling tube carbon packing screeding device, is characterized in that: comprise apparatus main body (1) and be arranged on the handle (2) on apparatus main body (1) top; The bottom of described apparatus main body (1) is provided with monolateral sword (11), and the cutting edge (111) of described monolateral sword (11) arranges along the length direction of apparatus main body (1) and flushes with the lower surface of apparatus main body (1); During work, the upper surface that the two ends, left and right of described cutting edge (111) can be fitted in two adjacent furnace hearth level I-beams (5) respectively does cutting movement.
2. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 1, it is characterized in that: the length of described cutting edge (111) is greater than the shortest distance between two adjacent furnace hearth level I-beam (5) upper surfaces, and is less than or equal to the longest distance between two adjacent furnace hearth level I-beam (5) upper surfaces.
3. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 1, it is characterized in that: described monolateral sword (11) comprises rake face (112) and rear knife face (113), the position that rake face (112) and rear knife face (113) intersect is cutting edge (111); Described rake face (112) comprises cancave cambered surface section (1121) and scarp section (1122), the distance of cancave cambered surface section (1121) front and rear edge is greater than the tilt length of scarp section (1122), the lower end of cancave cambered surface section (1121) is connected with the upper end arc transition of scarp section (1122), and lower end and the rear knife face (113) of scarp section (1122) intersect; Described rear knife face (113) parallels with the lower surface of apparatus main body (1).
4. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 1, is characterized in that: described handle (2) is two, and is symmetrical arranged on apparatus main body (1).
5. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 4, it is characterized in that: described handle (2) is L-shaped, comprise longitudinal section (21) and the traversing section (22) that be connected vertical with longitudinal section (21) lower end; Handle (2) is welded and fixed by traversing section (22) and apparatus main body (1), is positioned between the apparatus main body (1) of traversing section (22) opposition side and longitudinal section (21) and is provided with floor (3).
6. the Blast Furnace Bottom water cooling tube carbon packing screeding device according to any one of claim 1 to 5, it is characterized in that: described apparatus main body (1) comprise linked together by arc transition successively from the bottom up bottom (12), waist (13) and top (14), the width of described bottom (12) and top (14) is greater than the width of waist (13); Described handle (2) is vertically set on the upper end of top (14), and described monolateral sword (11) is arranged on that bottom (12) is upper and cutting edge (111) is one of bottom (12) limit that lower surface length is the longest.
7. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 6, is characterized in that: also comprise pneumatic pick (4); Waist (13) side being positioned at monolateral sword (11) opposition side is provided with set collar (131), the fit heads of the pick rod (41) of the circular hole on described set collar (131) and pneumatic pick (4); During work, the head of pick rod (41) is inserted in the circular hole on set collar (131), orders about this device by pneumatic pick (4) and do cutting movement using the cutting edge of monolateral sword (11) (111) as the front end of this device.
8. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 7, is characterized in that: described set collar (131) is two, and is symmetrical arranged on the side of waist (13).
9. Blast Furnace Bottom water cooling tube carbon packing screeding device as claimed in claim 7 or 8, is characterized in that: the lower surface of described bottom (12) is horizontally disposed with; Described waist (13) is obliquely installed, and makes waist (13) side at set collar (131) place towards oblique upper; Described handle (2) parallels with waist (13).
10. Blast Furnace Bottom water cooling tube carbon packing equating method, it is characterized in that: after the carbon packing rammer pressure between adjacent two furnace hearth level I-beams (5) is completed, adopt the Blast Furnace Bottom water cooling tube carbon packing screeding device described in claim 7 or 8 to carry out equating to carbon packing surface, comprise the following steps:
Step one, perpendicular to the mode of furnace hearth level I-beam (5), above-mentioned Blast Furnace Bottom water cooling tube carbon packing screeding device is positioned over the upper surface of furnace hearth level I-beam (5) with cutting edge (111), and the two ends, left and right of cutting edge (111) are fitted with the upper surface of adjacent two furnace hearth level I-beams (5) respectively;
Step 2, operator hold handle (2) and certain angle that tilts towards the front of cutting edge (111);
Step 3, other operator are by the circular hole on pick rod (41) the jacking set collar (131) of pneumatic pick (4);
Step 4, the operator of hand-held pneumatic pick (4) open pneumatic pick (4), cutting movement is done along the length direction of furnace hearth level I-beam (5) with the surging force thrust unit main body (1) of pneumatic pick (4), the operator holding handle (2) are exerted a force straight down by handle (2) and make the two ends, left and right of cutting edge (111) fit with the upper surface of furnace hearth level I-beam (5) and take advantage of a situation all the time to move ahead, the carbon packing of Blast Furnace Bottom water cooling tube carbon packing screeding device excision outstanding furnace hearth level I-beam (5) upper surface place horizontal plane, make the planeness on carbon packing surface consistent with furnace hearth level I-beam (5) upper surface planeness.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510427535.1A CN104975120B (en) | 2015-07-20 | 2015-07-20 | Blast Furnace Bottom water cooling tube carbon packing screeding device and equating method |
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|---|---|---|---|
| CN201510427535.1A CN104975120B (en) | 2015-07-20 | 2015-07-20 | Blast Furnace Bottom water cooling tube carbon packing screeding device and equating method |
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| CN104975120A true CN104975120A (en) | 2015-10-14 |
| CN104975120B CN104975120B (en) | 2017-04-05 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460226U (en) * | 2009-05-27 | 2010-05-12 | 中冶实久建设有限公司 | Blast furnace bottom leveling scraper |
| CN203144429U (en) * | 2013-01-12 | 2013-08-21 | 天津二十冶建设有限公司 | Blast furnace bottom carbon ramming mass leveling tool |
| CN203284416U (en) * | 2013-05-31 | 2013-11-13 | 天津二十冶建设有限公司 | Leveling device of carbon ramming materials at blast furnace bottom |
-
2015
- 2015-07-20 CN CN201510427535.1A patent/CN104975120B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201460226U (en) * | 2009-05-27 | 2010-05-12 | 中冶实久建设有限公司 | Blast furnace bottom leveling scraper |
| CN203144429U (en) * | 2013-01-12 | 2013-08-21 | 天津二十冶建设有限公司 | Blast furnace bottom carbon ramming mass leveling tool |
| CN203284416U (en) * | 2013-05-31 | 2013-11-13 | 天津二十冶建设有限公司 | Leveling device of carbon ramming materials at blast furnace bottom |
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| CN104975120B (en) | 2017-04-05 |
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