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This standard is for GB / T 2992-1982 "General Refractory Brick Shape and Size", GB / T 1590-1979 "Magnesia Brick and Magnesia Silicon Brick Shape and Size" and GB / T 2074-1980 "For Copper Furnace "Magnesia chrome brick shape and size" revision, merged into a standard.
This standard is not equivalent to the international standard ISO 5019-1: 1984 "Refractory Brick-Dimensions-Part 1: Straight Bricks"; ISO 5019-2: 1984 "Refractory Brick-Dimensions-Part 2: Wedge Bricks"; ISO 5019 -5: 1984 "Refractory Bricks-Dimensions-Part V: Arching Bricks". In addition to the 230mm and 345mm of international standards, the length of bricks in this standard also retains 300mm, 380mm and 460mm of China, and the width of bricks is 114mm and 150mm of international standards. The thickness of the brick remains 65mm and 75mm.
This standard has made the following amendments to the above three original standards:
——The name and main size parameters of the bricks are defined in words, and shown in the drawings or formulas.
——The brick number has been modified and the code name has been cancelled.
——The calculation method in the appendix of the original standard has been simplified and improved, and rewritten as appendix A.
—— Added vertical thick wedge-shaped bricks and straight bricks with the size of 75mm and other middle refractory bricks.
——The size of the refractory bricks with arches of 230mm, 300mm and 460mm on the inclined surface has been modified. The standard inclination angle is 60 ° / 30 ° and 50 ° / ° 40.
—— Delete non-universal special-shaped refractory bricks.
This standard shall replace GB / T 2992-1982, GB / T 1590-1979, GB / T 2074-1980 from the date of implementation.
Appendix A of this standard is a standard appendix.
This standard was proposed by the original Ministry of Metallurgical Industry.
This standard is under the jurisdiction of the National Refractory Standardization Technical Committee.
This standard is drafted by: Wuhan Iron and Steel (Group) Company.
The main drafters of this standard: Xue Qiwen, Wan Xiaoping, Gong Jiaxue, Gao Jianping, Fang Zhengguo.
1 Scope
This standard specifies the definition, brick number, specification notation, size and size parameters of general refractory bricks.
This standard applies to brick lining of thermal equipment such as industrial furnaces
2. Definition
This standard uses the following definition
2.1 General refractory bricks: refers to straight bricks used in straight wall brick laying and radial bricklaying of thermal furnaces such as industrial furnaces and kilns.
2.1.1 Straight brick: straight parallelepiped brick with length b, width a and thickness c, see Figure 1
2.1.2 Side thick wedge-shaped refractory bricks (referred to as side wedge-shaped bricks): the distance b between the large and small ends is designed in the width, and the size of the large and small ends a is large / a small is shown in the figure:
2.1.3. Vertical thick wedge bricks (referred to as vertical wedge bricks :) The distance b between the small and large ends is designed in length, and the size of the large and small ends is a large / small is designed in the thickness of the wedge bricks, see Figure 3:
2.1.4 Vertical and wide wedge bricks (abbreviated as wide wedge bricks): Wedge bricks with distance b at the large end designed in length and large a / a small at the end, see Figure 4
2.1.5. Arch foot refractory bricks: less than the load-bearing seat bricks on both sides of the semicircular vault brickwork, see Figure 5.
GB / T 2992——1998
Ь
Figure 3 Vertical thick wedge row bricks Figure 4 Vertical wide wedge row bricks
Figure 5 Arch brick
2.2. The average size of the average size of the size of the middle size wedge row brick.
3. Brick number and specification notation
3.1. Brick number T is the prefix of the common brick Chinese pinyin, followed by the short horizontal line is the sequence number.
3.2 Specification notation:
3.2.1 The specifications of straight refractory bricks are expressed in b × a × c.
3.2.2 The specification of wedge-shaped refractory brick is expressed by b × (a large / a small) × c.
3.2.3 The dimensions of the arch foot refractory brick are expressed by L × a × c.
4. Dimension and size parameters of refractory brick
4.1 The brick number, size, specifications and size parameters of straight bricks (see Figure 1) shall be as specified in Table 1.
4.2 The brick number, size, specifications and dimensional parameters of the side-thick wedge bricks (see Figure 2) shall be as specified in Table 2.
4.3 The brick number, size, specifications and dimensional parameters of vertical thick wedge row bricks (see Figure 3) shall be as specified in Table 3.
4.4 The brick number, size, specifications and dimensional parameters of vertical wide wedge bricks (see Figure 4) shall be as specified in Table 4.
4.5 The brick number, size, specifications and dimensional parameters of arch foot bricks (see Figure 5) shall be as specified in Table 5.
GB / T 2992——1998
Table 1 Straight Brick
old
country
Mark
brick
number
size
mm
specification
mm
area
㎝
Smelt
Mark
The building size is a
b
a
c
65
75
114
150
Tz-1
T-1
172
114
65
172 × 114 × 65
1274.5
T-14
Tz-2
T-2
230
114
32
230 × 114 × 32
839.0
Tz-3
T-3
230
114
65
230 × 114 × 65
10.50
18.30
1704.3
T-3
Tz-4
T-4
230
172
65
230 × 172 × 65
10.50
2571.4
T-9
Tz-5
T-5
172
114
75
172 × 114 × 75
1470.6
T-13
Tz-6
T-6
230
114
75
230 × 114 × 75
12.10
18.30
1966.5
T-2
T-7
230
150
75
230 × 150 × 75
24.03
2587.5
R1
T-8
230
172
75
230 × 172 × 75
12.10
2967.0
T-8
Tz-7
T-9
300
150
65
300 × 150 × 65
2925.0
T-7
Tz-8
T-10
300
150
75
300 × 150 × 75
3375.0
Tz-9
T-11
300
225
75
300 × 225 × 75
12.10
5062.5
T-12
345
114
65
345 × 114 × 65
18.30
2556.5
T-13
345
150
75
345 × 150 × 75
24.03
3881.3
R2
T-14
380
150
65
380 × 150 × 65
10.65
3705.0
T-15
380
150
75
380 × 150 × 75
12.26
4275.0
T-16
380
225
75
380 × 225 × 75
12.26
6412.5
T-17
460
150
65
460 × 150 × 65
4485.0
T-18
460
150
75
460 × 150 × 75
12.26
5175.0
T-19
460
225
75
460 × 225 × 75
12.26
7762.5
Metallurgical standard: T6 250 × 123 × 65 T10 250 × 186 × 75 T16 186 × 123 × 65
T1 230 × 113 × 100 T11 250 × 186 × 65 T79 460 × 230 × 75
T4 230 × 113 × 40 T12 300 × 225 × 65 T80 575 × 170 × 80
T5 250 × 123 × 75 T15 186 × 123 × 75 T81 690 × 170 × 100
T82 460 × 135 × 113
GB / T 2992——1998
Table 2. Side thick wedge row bricks (horizontal rotation)
old
country
Mark
brick
number
size
㎜
specification
㎜
Outer radius
(A large + δ) b
RC = ——————
a large-a small
Limit blocks per ring
2 × 3.14b
K′wedge = ——————
a large-a small
Tilt angle
180 (a large-a small)
θC = ——————
3.14 × b
volume
㎝
Smelt
Mark
b
a large / a small
c
Tc-21
T-21
114
65/35
230
114 × （65/35） × 230
250.8
23.876
15.078
1311.0
Tc-22
T-22
114
65/45
230
114 × （65/45） × 230
376.2
35.814
10.052
1442.1
T-39
Tc-23
T-23
114
65/55
230
114 × （65/55） × 230
752.4
71.628
5.026
1375.2
T-38
Tc-24
T-24
114
75/45
230
114 × （75/45） × 230
288.8
23.876
15.078
1573.2
Tc-25
T-25
114
75/55
230
114 × （75/55） × 230
433.2
35.814
10.052
1704.3
T-37
Tc-26
T-26
114
75/65
230
114 × （75/65） × 230
866.4
71.628
5.026
1835.4
T-36
Tc-27
T-27
150
65/35
300
150 × （65/35） × 300
330.0
31.416
11.459
2250.0
Tc-28
T-28
150
65/45
300
150 × （65/45） × 300
495.0
47.124
7.639
2473.0
Tc-29
T-29
150
65/55
300
150 × （65/55） × 300
990.0
94.248
3.820
2700.0
Tc-30
T-30
150
75/45
300
150 × （75/45） × 300
380.0
31.116
11.459
2700.0
Tc-31
T-31
150
75/55
300
150 × （75/55） × 300
570.0
47.124
7.639
2925.0
Tc-32
T-32
150
75/65
300
150 × （75/65） × 300
1140.0
94.248
3.820
3150.0
Note: In the calculation formula of the outer radius Rc, the thickness δ of the brick joint is taken as 1 mm.
Table 3 Vertical thick wedge row bricks (vertical rotation)
old
country
Mark
brick
number
size
mm
specification
mm
Outer radius
(A large + δ) b
RC = ——————
a large-a small
Limit blocks per ring
2 × 3.14b
K′wedge = ——————
a large-a small
Tilt angle
180 (a large-a small)
θC = ——————
3.14 × b
volume
㎝
Smelt
Mark
b
a large / a small
c
Ts-41
T-41
230
65/35
114
230 × （65/35） × 114
506.0
48.171
7.473
1311.0
Ts-42
T-42
230
65/45
114
230 × （65/45） × 114
759.0
72.257
4.982
1442.1
T-20
Ts-43
T-43
230
65/55
114
230 × （65/55） × 114
1518.0
144.514
2.491
1573.2
T-19
Ts-44
T-44
230
65/60
114
230 × （65/60） × 114
3036.0
289.072
1.246
1638.8
Ts-45
T-45
230
65/35
172
230 × （65/35） × 172
506.0
48.171
7.4
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