1、BRITISH STANDARD BS 3056-3: 1986 Incorporating Amendment No. 1 Sizes of refractory bricks Part 3: Specification for bricks for rotary cement kilns UDC 666.76-431-181BS3056-3:1986 This British Standard, having been prepared under the directionof the Refractory Products Standards Committee,was publish
2、ed underthe authorityof the BoardofBSI andcomes into effect on 30 April 1986 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference RPM/4 Draft for comment 84/38397 DC ISBN 0 580 15072 0 Committees responsible for this British Standard The preparation of th
3、is British Standard was entrusted by the Refractory Products Standards Committee (RPM/-) to Technical Committee RPM/4, upon which the following bodies were represented: British Ceramic Research Association British Gas Corporation British Metallurgical Plant Constructors Association British Steel Ind
4、ustry Cement Makers Federation Coke Oven Managers Association Institute of Refractories Engineers Refractories Association of Great Britain Society of Glass Technology Society of Industrial Furnace Engineers Amendments issued since publication Amd. No. Date of issue Comments 5508 March 1987 Indicate
5、d by a sideline in the marginBS3056-3:1986 BSI 09-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Sizes 1 3 Designations and statement of dimensions 1 4 Tolerances 1 Appendix A Guidance on kiln design 6 Appendix B Arch-brick formulae 9 Appendix C Numbers of bri
6、cks needed in combining sizes to form circles of given diameters 9 Figure 1 Hot face identification markings for alumino-silicate bricks 7 Figure 2 Turning circle identification mark positions for alumino-silicate bricks 8 Figure 3 Diagrams illustrating arch-brick calculations 10 Table 1 Dimensions
7、of bricks with constant back face dimension (basic, high alumina, fireclay, insulating and semi-insulating refractory: CBY series) 2 Table 2 Dimensions of bricks with constant back face dimension (non-basic products, including high alumina, fireclay, insulating and semi-insulating: CBZ series) 3 Tab
8、le 3 Dimensions of bricks with constant median dimension (basic refractory products: CV series) 4 Table 4 Sizes of closure bricks 5 Table 5 Dimensional tolerances of bricks 5 Table 6 Brick size combinations 11 Publications referred to Inside back coverBS3056-3:1986 ii BSI 09-1999 Foreword This Part
9、of BS3056has been prepared under the direction of the Refractory Products Standards Committee. It supersedes BS4982-1and 4982-2, which are withdrawn. BS3056:1973has been superseded by BS3056-1covering multi-purpose bricks. This Part of BS3056 is one of a series of new Parts intended to cover bricks
10、for a wide range of specific applications. This Part is concerned with refractory bricks for rotary cement kilns, which have not been covered by the previous editions. Appendices to this Part of BS3056give guidance on kiln design, formulae for the calculation of the number of tapered bricks required
11、 to form circles, and a table showing recommended combinations of sizes to form circles of given diameters. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British S
12、tandard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments inco
13、rporated. This will be indicated in the amendment table on the inside front cover.BS3056-3:1986 BSI 09-1999 1 1 Scope This Part of BS3056specifies the sizes of refractory bricks used in the construction of rotary cement kiln linings, including closure bricks, and the tolerances to which these bricks
14、 are to be supplied. Special refractory brick shapes used in these kilns, such as those used in conical sections, nose rings, preheaters, etc., are not covered by this standard. NOTE 1Guidance on kiln design is given in Appendix A, arch-brick formulae are given in Appendix B and numbers of bricks ne
15、eded in combining sizes to form circles of selected diameters are given inAppendix C. NOTE 2The titles of the publications referred to in this standard are given on the inside back cover. 2 Sizes 2.1 The sizes of refractory bricks for rotary cement kiln linings shall be as given inTable 1 toTable 3.
16、 Tolerances on these sizes shall be as given in clause4. NOTE 1The symbols used inTable 1 toTable 3 are shown in the figure accompanying each table. These symbols do not necessarily apply to any other tables or figures in this or any other standard. NOTE 2The volume of each brick is given, as supple
17、mentary information, inTable 1 toTable 3. Information on the material or qualities in which each of the sizes may be expected to be available is given in the titles ofTable 1 toTable 3, and in Table 4. It is emphasized that this information is included only as general guidance for the benefit of a u
18、ser of this standard, and it is not to be interpreted as meaning that all of these sizes will be available, let alone available from one supplier, or that no other sizes or combinations of sizes will be available. Information of this nature would normally be included in a British Standard as an appe
19、ndix, but is included here in the tables as a matter of convenience. The following classes of refractory bricks are referred to: fireclay refractories (containing less than45% (m/m) alumina); high alumina refractories (containing45% (m/m) or more alumina); insulating refractories (containing more th
20、an45% porosity); semi-insulating refractories (containing25% to45% porosity). NOTE 3Table 1 andTable 2 include sizes formerly given in BS4982-1and4982-2. It is recognized that the “11” series and the “25” series are used for export orders, but these are excluded from this standard. Table 3 gives an
21、alternative series of sizes based on constant volume. 2.2 Where closure bricks are required, two bricks of the appropriate size shall be selected from those given in Table 4. 3 Designations and statement of dimensions 3.1 The designations of the sizes shall be as given in Table 1 toTable 3. NOTESize
22、 designations should not be used for sole reference unless it is known that the recipients of the communication are conversant with them. It is recommended that, if there is any doubt whether the designation will be understood, the dimensions should be stated, either in conjunction with or instead o
23、f the designations. 3.2 The dimensions of a brick, where stated, shall be given in the order given inTable 1 to Table 3. 4 Tolerances 4.1 Bricks shall be supplied within the dimensional tolerances given in theTable 5. 4.2 The dimensions and shape of refractory bricks shall be measured in accordance
24、with BS1902-3.11. NOTEAttention is particularly drawn to the foreword of this method. 4.3 Evaluation of dimensional tolerances for a consignment of bricks shall be carried out in accordance with BS6065. NOTEGuidance on the use of BS6065 is given in BS6434.BS3056-3:1986 2 BSI 09-1999 Table 1 Dimensio
25、ns of bricks with constant back face dimension (basic, high alumina, fireclay, insulating and semi-insulating refractory: CBY series) NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation Dimensions Volume Nominal outer diameter a H L A B mm mm mm mm L
26、 mm 216Y 316Y 416Y 516Y 716Y 160 160 160 160 160 198 198 198 198 198 103 103 103 103 103 86.0 92.0 94.5 96.5 98.3 2.99 3.09 3.13 3.16 3.19 1 950 3 000 3 900 5 050 7 000 218Y 318Y 418Y 518Y 618Y 718Y 180 180 180 180 180 180 198 198 198 198 198 198 103 103 103 103 103 103 84.0 90.5 93.5 95.5 97.0 97.7
27、 3.33 3.45 3.50 3.54 3.56 3.58 1 950 2 950 3 900 4 950 6 200 7 000 220Y 320Y 420Y 520Y 620Y 720Y 820Y 200 200 200 200 200 200 200 198 198 198 198 198 198 198 103 103 103 103 103 103 103 82.0 89.0 92.5 94.7 96.2 97.0 97.8 3.66 3.80 3.87 3.91 3.94 3.96 3.98 1 950 2 950 3 900 4 950 6 050 6 850 7 900 32
28、2Y 422Y 522Y 622Y 722Y 822Y 220 220 220 220 220 220 198 198 198 198 198 198 103 103 103 103 103 103 88.0 91.5 94.0 95.5 96.5 97.3 4.16 4.24 4.29 4.32 4.35 4.36 3 000 3 950 5 050 6 050 6 950 7 950 425Y 525Y 625Y 725Y 825Y 250 250 250 250 250 198 198 198 198 198 103 103 103 103 103 90.0 92.7 94.5 95.5
29、 96.5 4.78 4.84 4.89 4.91 4.94 3 950 5 000 6 050 6 850 7 900 a The nominal diameter does not take into account any allowances which have to be made for steel plates, expansion materials or mortar joints.BS3056-3:1986 BSI 09-1999 3 Table 2 Dimensions of bricks with constant back face dimension (non-b
30、asic products, including high alumina, fireclay, insulating and semi-insulating: CBZ series) NOTEThe symbols designating the dimensions relate only to the diagram in this table. Size designation Dimensions Volume Nominal outer diameter a H L A B mm mm mm mm L mm 216Z 316Z 516Z 716Z 160 160 160 160 2
31、50 250 250 250 103 103 103 103 86.0 92.0 96.5 98.3 3.78 3.90 3.99 4.03 1 950 3 000 5 050 7 000 218Z 318Z 518Z 718Z 180 180 180 180 250 250 250 250 103 103 103 103 84.0 90.5 95.5 97.7 4.21 4.35 4.47 4.52 1 950 2 950 4 950 7 000 220Z 320Z 420Z 620Z 820Z 200 200 200 200 200 250 250 250 250 250 103 103
32、103 103 103 82.0 89.0 92.5 96.2 97.8 4.63 4.80 4.89 4.98 5.02 1 950 2 950 3 900 6 050 7 900 323Z 423Z 623Z 823Z 230 230 230 230 250 250 250 250 103 103 103 103 86.9 91.0 95.0 97.0 5.46 5.58 5.69 5.75 2 950 3 950 5 900 8 000 a The nominal diameter does not take into account any allowances which have
33、to be made for steel plates, expansion materials or mortar joints.BS3056-3:1986 4 BSI 09-1999 Table 3 Dimensions of bricks with constant median dimension (basic refractory products: CV series) NOTE 1The symbols designating the dimensions relate only to the diagram in this table. Size designation Dim
34、ensions Volume Nominal outer diameter a H L A B mm mm mm mm L mm B 216 B 416 B 616 160 160 160 198 198 198 78.0 75.0 74.0 65.0 68.0 69.0 2.27 2.27 2.27 1 900 3 450 4 750 B 218 B 318 B 418 B 618 180 180 180 180 198 198 198 198 78.0 76.5 75.0 74.0 65.0 66.5 68.0 69.0 2.55 2.55 2.55 2.55 2 150 2 750 3
35、850 5 350 B 220 B 320 B 420 B 620 B 820 200 200 200 200 200 198 198 198 198 198 78.0 76.5 75.0 74.0 73.3 65.0 66.5 68.0 69.0 69.7 2.83 2.83 2.83 2.83 2.83 2 400 3 050 4 300 5 900 8 150 B 222 B 322 B 422 B 622 B 822 220 220 220 220 220 198 198 198 198 198 78.0 76.5 75.0 74.0 73.5 65.0 66.5 68.0 69.0
36、69.5 3.11 3.11 3.11 3.11 3.11 2 650 3 350 4 700 6 500 8 100 B 325 B 425 B 525 B 625 B 725 250 250 250 250 250 198 198 198 198 198 78.0 76.5 75.0 74.5 74.0 65.0 66.5 68.0 68.5 69.0 3.54 3.54 3.54 3.54 3.54 3 000 3 850 5 350 6 200 7 400 NOTEThe 820, 822 and 725 series are also commonly produced with a
37、 taper of 78/74 mm; however, these do not conform to the constant volume series. a The nominal diameter does not take into account any allowances which have to be made for steel plates, expansion materials or mortar joints.BS3056-3:1986 BSI 09-1999 5 Table 4 Sizes of closure bricks Table 5 Dimension
38、al tolerances of bricks Quality of refractory Format from which the main lining is constructed Closure brick sizes Basic Constant volume series, CV 0.75 and 1.33 of sharper taper CV format brick and/or matching CBY size Basic, high alumina and fireclay Constant back face series, CBY 0.66 and 0.75 of
39、 slower taper CBY format brick and/or matching CV size Non-basic (normally high alumina and fireclay) Constant back face series, CBZ 0.66 and 0.75 of slower taper CBZ format brick Insulating and semi-insulating Constant back face series, CBZ 0.75 and 1.33 of slower taper CBZ format brick NOTEThe pro
40、portions given in Table 4 apply only to the A dimension in Table 1 to Table 3. The B dimension is calculated using the same taper as the corresponding sizes from Table 1 to Table 3. Dimensional parameter Dimensional tolerances Brick sizes Basic, high alumina and all chemically-bonded (unburned) refr
41、actories Fired fireclay bricks up to 45 % Al 2 O 3and all burned insulating and semi-insulating refractories Axial dimensions L (%) 1 1.5 All standard brick sizes Radial dimensions A and B (%) 1.5 2 All standard brick sizes Radial adimension difference A B (mm) 0.75 of nominal taper difference (A B)
42、 Not applicable All standard brick sizes with a back face chord of less than 80 mm 1 of nominal taper difference (A B) 1 of nominal taper difference (A B) All standard bricks with a back face chord of 80 mm or greater Wearing thickness H (%) 2 2 All standard brick sizes NOTE 1The axial dimension sho
43、uld be controlled to reduce “meshing” of parts of adjacent rings of brickwork which can cause problems during brick fitting and generate axial slackness. NOTE 2The radial dimension should be controlled to ensure that arch bricks turn their designated circle and that, when used in a two-taper system
44、of lining construction, they yield the appropriate usage ratio. NOTE 3In particular parts of rotary kilns, for example dam rings, cam linings and tumbling systems, the height or wearing thickness of the brick should be controlled. However, in most areas of typical kiln lining slight variation in wea
45、ring thickness is permissible. In certain kiln zones some surface irregularity may aid proper burden movement and assist protective coating accretion. a Where bricks are supplied with glued-on steel plates, the same radial dimensional tolerance requirements apply. Thickness of this adhesive layer sh
46、ould not exceed 0.5 mm and will preferably be less than 0.3 mm.BS3056-3:1986 6 BSI 09-1999 Appendix A Guidance on kiln design A.1 Provision of design information A.1.1 In order to make recommendations for future kiln design and type of refractory material, the refractories supplier should acquire su
47、fficient relevant data on process and operating conditions in all zones of each specific rotary cement kiln, and the performance of the refractories in each of these zones. A.1.2 The user of the refractories should supply such information as the manufacturer requires to comply with A.1.1. In additio
48、n, when appropriate, detailed kiln drawings should be made available by the user. These may show, for example, locations of support stations, the kiln drive gear, changes in kiln section, lining stop ring locations, and kiln inlet and outlet mechanical arrangements. A.1.3 The supplier should use the
49、 information given under A.1.1 and A.1.2 to offer schemes for single-layer, two-taper construction in the brick-lined areas of the kiln shell. Ratios of sizes should be recommended, with expansion allowances where necessary, in order to give a robust construction requiring the minimum use of additional correcting measures by the installer. The designed utilization factor for the main sizes of bricks should be achieved. A.2 Brick attributive properties A.2.1 General The precise laying of bricks inside the ki
