CN100533058C - Large-sized annular heating stove bottom operation accuracy measurement method - Google Patents
Large-sized annular heating stove bottom operation accuracy measurement method Download PDFInfo
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- CN100533058C CN100533058C CNB2007100597597A CN200710059759A CN100533058C CN 100533058 C CN100533058 C CN 100533058C CN B2007100597597 A CNB2007100597597 A CN B2007100597597A CN 200710059759 A CN200710059759 A CN 200710059759A CN 100533058 C CN100533058 C CN 100533058C
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Abstract
The method comprises: using 48 supporting rollers located at the inner side of the annular furnace as the reference to determine 12 fixed points as the measured reference points; based on the distribution state of 12 centering rollers, making 26 movable points; measuring the radial offset of the fixed points and the movable points to the bottom of the furnace.
Description
Technical field
The present invention relates to the measurement of the medium-and-large-sized annular heating furnace equipment running precision of smelter, particularly a kind of large-sized annular heating stove bottom operation accuracy measurement method.
Background technology
Rotary heating furnace is the indispensable process equipment of metallurgy industry, and particularly more apparent it is important for the tubing processing industry.The quality of furnace bottom equipment operation is directly connected to the failure rate of rotary heating furnace system and the serviceable life of stove.Its principle of work is as shown in Figure 1: annular furnace relies on self rotation to make the blank thermally equivalent, uniform oil motor 1 on furnace bottom external diameter direction, driving is fixed on the cylindricality tooth bar 2 on the furnace bottom external diameter, furnace bottom steel construction 4 is rotated, and centering guarantees its running precision to centering roller 8 to the furnace bottom steel construction from inside to outside.Because of the base seam of the furnace bottom steel construction of rotary heating furnace and furnace wall 17 very little, under inertial force and action of centrifugal force, fire resistive material 3 on the furnace bottom steel construction can drift about with the furnace bottom steel construction, be easy to interfere with furnace wall, directly influence the serviceable life of rotary heating furnace, need adjust this moment to the rotary heating furnace running precision, and finding measuring basis when adjusting accurately is very crucial work.If the unique measuring basis punctuate (furnace bottom central point) when equipment is installed lacks because of failing safekeeping; the furnace bottom rotating deviation measured to cause difficulty; perhaps because the middle intensive equipment of annular furnace blocks sight line, even find central point also to be difficult to it is carried out directly measuring comprehensively.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this invention is to provide a kind of large-sized annular heating stove bottom operation accuracy measurement method, can well monitor the running precision of furnace bottom, the overproof situation of annular furnace running precision is accurately grasped, adjusted accordingly the running precision that guarantees annular furnace simultaneously.
For achieving the above object, the technical solution used in the present invention provides a kind of large-sized annular heating stove bottom operation accuracy measurement method, and this method may further comprise the steps:
1., at first examine annular furnace furnace bottom central point
A, determine " fixedly punctuate " position of annular furnace furnace bottom
B, examine the furnace bottom central point
From above-mentioned 12 fixing optional three points the punctuate A1-A12, annular furnace furnace bottom central point is examined with transit;
2., the radial missing during measure annular stove bottom operation then
A, determine 26 " activity " punctuate positions
Make 26 marks with corrosion resistant plate, on the basis of the certain vertical range in distance wearing plate side, along the circumferential direction uniform being welded on the annular furnace furnace bottom steel construction 4 is as movable punctuate 13 then;
The radial missing of two pairing wearing plate spacings of movable punctuate on b, the under static state same diameter of mensuration annular furnace;
Appoint get on the same circle diameter of annular furnace furnace bottom two fixedly punctuate Ax, Ay is as the reference point of measuring furnace bottom self error information, as a pair of movable punctuate X that is on the furnace bottom steel construction on the same furnace bottom circle diameter, after Y forwards the diameter at these two reference point places and annular furnace to and stops operating, record this moment two the pairing wearing plate of movable punctuate 9 sides respectively to the actual vertical range dx of approaching reference point separately, dy, the pairing wearing plate of each movable punctuate is to the actual range of furnace bottom center line and the deviation Wx of theoretical then, Wy, calculate with following formula:
Wx＝rx—R＝dx+N-(D+N)＝dx-D，Wy＝ry—R＝dy+N-(D+N)＝dy-D
And then calculate the radially static deviation Wx﹠amp of pairing two the wearing plate spacings of movable punctuate on the same diameter with following formula; Y:
Wx&y＝Wx+Wy＝dx+dy-2D
The measurement of c, the radial missing when carrying out the annular furnace bottom operation
Annular furnace records the wearing plate side of movable punctuate X correspondence when rotated and arrives the fixedly actual value of punctuate Ax vertical range
And the fixedly actual value of punctuate Ay vertical range is arrived in the wearing plate side of movable punctuate Y correspondence
, the Wx of the correspondence that pacing gets in the utilization, the value of Wy are calculated every pair of pairing operation radial missing of movable punctuate of annular furnace furnace bottom Px﹠amp according to following formula; Y:
Effect of the present invention is by implementing this measuring method, guaranteed the running precision of annular furnace, need not fine measuring instrument, and easy-operating measuring method easy to use, can solve the measurement and the adjustment problem of super-huge rotary heating furnace, and obtained considerable economic, make the management of annular furnace step into scientific track.
Description of drawings
Fig. 1 is annular furnace backing roll base of the present invention and centering roller base relative position synoptic diagram;
Fig. 2 is an annular furnace furnace bottom punctuate relative position synoptic diagram of the present invention;
Fig. 3 is an annular furnace furnace bottom punctuate distribution plan of the present invention;
Fig. 4 is an annular furnace bottom operation deviation instrumentation plan of the present invention;
Fig. 5 is that centering roller of the present invention is adjusted synoptic diagram.
Among the figure:
1, oil motor 2, tooth bar 3, fire resistive material 4, furnace bottom steel construction
5, lateral branch runner 6, supporting base 7, backing roll place wearing plate 8, centering roller
9, the wearing plate 10 that contacts with the centering roller, centering roller bearing block
11, the movable punctuate on annular furnace furnace bottom center line 12, medial branch runner 13, the steel construction
14, fixedly punctuate 15, the magnetic line of force weigh down 16, water sealed tank
17, furnace wall 20, block 21, bolt of lower base
The label of C, furnace bottom central point 1#-26#, movable punctuate
A1-A12, the fixing label of punctuate
Ax, is in a pair of fixedly punctuate on the same furnace bottom circle diameter at Ay
X, is in a pair of movable punctuate on the same furnace bottom circle diameter at Y
18.1The physical location of movable punctuate X pairing wearing plate side when annular furnace is static
18.2The physical location of movable punctuate Y pairing wearing plate side when annular furnace is static
19.1The physical location of movable punctuate X pairing wearing plate side when the annular furnace furnace bottom rotates
19.2The physical location of movable punctuate Y pairing wearing plate side when the annular furnace furnace bottom rotates
D: the fixedly theoretical reference value of punctuate vertical range, D=200mm are arrived in the wearing plate side.
R: the wearing plate side is to the theoretical reference value of furnace bottom distance between center line, R=43.470m.
Dx: when annular furnace remained static, the fixedly actual value of punctuate Ax vertical range was arrived in the wearing plate side of punctuate X correspondence
Dy: when annular furnace remained static, the fixedly actual value of punctuate Ay vertical range was arrived in the wearing plate side of punctuate Y correspondence
Rx: when annular furnace remained static, the wearing plate side of punctuate X correspondence was to the actual value of furnace bottom center line
Ry: when annular furnace remained static, the wearing plate side of punctuate Y correspondence was to the actual value of furnace bottom center line
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated large-sized annular heating stove bottom operation accuracy measurement method of the present invention.
Large-sized annular heating stove bottom operation accuracy measurement method of the present invention, the target that reach: measure the bottom operation radial missing, simultaneously off-limits deviation is adjusted, maximum deviation is controlled in the allowed band (± 10mm).This method may further comprise the steps:
1., at first examine annular furnace furnace bottom central point.
A, determine 12 of annular furnace furnace bottoms " fixedly punctuate " position
As shown in Figure 2, be benchmark with inboard 48 backing rolls 12 of annular furnace, on the basis of the vertical range of distance medial branch runner side 400mm, along the circumferential direction make 12 fixedly punctuate marks 14 with corrosion resistant plate every 30 ° of angles.Fixedly punctuate distributes as shown in Figure 3.
B, examine the furnace bottom central point
Fixedly choose three points wantonly in the punctuate (A1-A12 Fig. 3) from 12, annular furnace furnace bottom central point is examined with instruments such as transits.
2., the radial missing during measure annular stove bottom operation then.
A, determine 26 " activity " punctuate positions
As shown in Figure 2, make 26 marks with corrosion resistant plate, then on the basis of the vertical range of distance wearing plate side 125mm, along the circumferential direction uniform being welded on the annular furnace furnace bottom steel construction 4, as movable punctuate 13, movable punctuate is spaced apart 5.27 meters (in arc length).Movable punctuate distributes as shown in Figure 3.
The radially static deviation of two pairing wearing plate spacings of movable punctuate on b, the same diameter of mensuration annular furnace
As shown in Figure 4, be taken on the same circle diameter two fixedly punctuate Ax, Ay, as the reference point of measuring furnace bottom self error information, as the 4 a pair of movable punctuate X that are on the same furnace bottom circle diameter on the furnace bottom steel construction, after Y (having 13 couples) forwards the diameter at these two reference point places and annular furnace to and stops operating, record this moment two the pairing wearing plate of movable punctuate sides respectively to the actual vertical range dx of approaching reference point separately, dy, the pairing wearing plate of each movable punctuate is to the actual range of furnace bottom center line and the deviation Wx of theoretical, Wy is respectively:
Wx＝rx—R＝dx+N-(D+N)＝dx-D，Wy＝ry—R＝dy+N-(D+N)＝dy-D
Calculating every pair of radially static deviation that is in pairing two the wearing plate spacings of movable punctuate on the same diameter according to following formula then is:
Wx&y＝Wx+Wy＝dx+dy-2D
Record each to the pairing static deviation of movable punctuate on the same diameter (all to be benchmark) as shown in the table with the fixedly punctuate on a pair of same furnace bottom circle diameter:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
| |
1# | 26# | 25 # | 24# | 23 # | 22 # | 21 # | 20 # | 19 # | 18 # | 17 # | 16 # | 15 # |
| Wx | +2 | +3 | +3 | +5 | +4 | +2 | +2 | -2 | -4 | -3 | -1 | -2 | -2 |
| |
14# | 13# | 12 # | 11# | 10 # | 9# | 8# | 7# | 6# | 5# | 4# | 3# | 2# |
| Wy | +3 | +2 | +6 | +6 | +3 | +1 | +3 | +3 | +5 | +4 | +3 | -1 | -2 |
| Wx&y | +5 | +5 | + 9 | +11 | + 7 | + 3 | + 5 | + 1 | + 1 | + 1 | + 2 | — 3 | — 4 |
C, carry out the measurement that the annular furnace furnace bottom radially moves deviation
Record annular furnace when rotated, the every pair of movable punctuate through each during to fixing punctuate pairing wearing plate side arrive the actual value of furnace bottom distance between center line
Calculate the pairing deviation Px﹠amp that radially moves of every pair of movable punctuate of annular furnace furnace bottom according to following formula; Y:
The movable punctuate of 24# and 11#, 15# and the movable punctuate of 2# are the furnace bottom two pair punctuates bigger to distortion on the angular direction respectively, and be representative.These 2 pairs of punctuates are as shown in the table in the operation radial missing at different fixing punctuate place:
Annotate: the bottom operation deviation is to the maximum ± 18mm as seen from the above table.The scope that surpasses permission ± 10mm.
D, analysis data are adjusted the centering roller
As shown in Figure 5: at annular furnace bottom operation state and centering roller 8 self stressing conditions, through repeatedly measuring the situation that contacts of centering roller and wearing plate 9, determined the roller supporting seat 10 of partly feeling relieved is adjusted, in the hope of the stressed optimal operational condition of adjusting to of the roller of will feeling relieved.
Adjusted radial missing is as follows:
| A1、A7 | A2、A8 | A3、A9 | A4、A10 | A5、A11 | A6、A12 | |
| P 24#&11# | ±3 | ±6 | ±1 | ±5 | ±4 | ±3 |
| P 15#&2# | ±8 | ±5 | ±5 | ±8 | ±6 | ±4 |
As known from the above, the annular furnace furnace bottom is at adjusted maximum error value ± 8mm.Be lower than ± allowed band of 10mm, prove that to adjust back furnace bottom rotation error controlled.
Because movable punctuate can rotate with the furnace bottom steel construction, so be example when forwarding on the determined straight line of A1, A7 with the movable punctuate of 1#, 14# among the figure.
Claims (1)
1, a kind of large-sized annular heating stove bottom operation accuracy measurement method, this method may further comprise the steps:
1., at first examine annular furnace furnace bottom central point
A, determine " fixedly punctuate " position of annular furnace furnace bottom
Backing roll (12) with the annular furnace inboard is a benchmark, on the basis of the certain vertical range in distance medial branch runner side, and along the circumferential direction uniform 12 fixedly punctuate marks of making of corrosion resistant plate (14);
B, examine the furnace bottom central point
From above-mentioned 12 fixing optional three points the punctuate A1-A12, annular furnace furnace bottom central point is examined with transit;
2., the radial missing during measure annular stove bottom operation then
A, determine 26 " activity " punctuate positions
Make 26 marks with corrosion resistant plate, on the basis of the certain vertical range in distance wearing plate side, along the circumferential direction uniform being welded on the annular furnace furnace bottom steel construction (4) is as movable punctuate (13) then;
The radial missing of two pairing wearing plate spacings of movable punctuate on b, the under static state same diameter of mensuration annular furnace;
Appoint get on the same circle diameter of annular furnace furnace bottom two fixedly punctuate Ax, Ay is as the reference point of measuring furnace bottom self error information, as a pair of movable punctuate X that is on the furnace bottom steel construction on the same furnace bottom circle diameter, after Y forwards the diameter at these two reference point places and annular furnace to and stops operating, record this moment two pairing wearing plates of movable punctuate (9) side respectively to the actual vertical range dx of approaching reference point separately, dy, the pairing wearing plate of each movable punctuate is to the actual range of furnace bottom center line and the deviation Wx of theoretical then, Wy, calculate with following formula:
Wx＝rx—R＝dx+N-(D+N)＝dx-D，Wy＝ry—R＝dy+N-(D+N)＝dy-D
In the formula:
D: the fixedly theoretical reference value of punctuate vertical range is arrived in the wearing plate side
R: the wearing plate side is to the theoretical reference value of furnace bottom distance between center line
N: fixedly punctuate is to the vertical range of furnace bottom center line
Rx: when annular furnace remained static, the wearing plate side of movable punctuate X correspondence was to the actual value of furnace bottom center line
Ry: when annular furnace remained static, the wearing plate side of movable punctuate Y correspondence was to the actual value of furnace bottom center line
And then calculate the radially static deviation Wx﹠amp of pairing two the wearing plate spacings of movable punctuate on the same diameter with following formula; Y:
Wx&y＝Wx+Wy＝dx+dy-2D
The measurement of c, the radial missing when carrying out the annular furnace bottom operation
Annular furnace records the wearing plate side of movable punctuate X correspondence when rotated and arrives the fixedly actual value d ' of punctuate Ax vertical range
xAnd the fixedly actual value d ' of punctuate Ay vertical range is arrived in the wearing plate side of movable punctuate Y correspondence
y, the Wx of the correspondence that pacing gets in the utilization, the value of Wy are calculated every pair of pairing operation radial missing of movable punctuate of annular furnace furnace bottom Px﹠amp according to following formula; Y:
Px&y＝(d′
x—D+Wx)+(d
y—D+Wy)＝d′
x+d′
y-2D+Wx&y。
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| CNB2007100597597A CN100533058C (en) | 2007-09-24 | 2007-09-24 | Large-sized annular heating stove bottom operation accuracy measurement method |
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| CNB2007100597597A CN100533058C (en) | 2007-09-24 | 2007-09-24 | Large-sized annular heating stove bottom operation accuracy measurement method |
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| JP6179109B2 (en) * | 2013-01-30 | 2017-08-16 | 株式会社ジェイテクト | Measuring method and grinding machine |
| CN114877849B (en) * | 2022-05-27 | 2024-04-30 | 包头钢铁（集团）有限责任公司 | Method for measuring roundness of steel structure at upper part of annular heating furnace by total station |
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Non-Patent Citations (2)
| Title |
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| 管坯环形加热炉的技术特点及控制水平. 温勇.工业炉，第22卷第4期. 2000 |
| 管坯环形加热炉的技术特点及控制水平. 温勇.工业炉，第22卷第4期. 2000 * |
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Effective date of registration: 20190620 Address after: No. 396 Jintang Highway, Dongli District, Tianjin 300301 Patentee after: Tianjin Steel Tube Manufacturing Co., Ltd. Address before: 300301 Jintang Road, Dongli District, Tianjin Patentee before: Tianjin Steel Pipe Group Co., Ltd. |
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