CN207958415U - A kind of lattice brick used for hot-blast stove - Google Patents
A kind of lattice brick used for hot-blast stove Download PDFInfo
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- CN207958415U CN207958415U CN201820365881.0U CN201820365881U CN207958415U CN 207958415 U CN207958415 U CN 207958415U CN 201820365881 U CN201820365881 U CN 201820365881U CN 207958415 U CN207958415 U CN 207958415U
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Abstract
一种热风炉用格子砖，格子砖的外形为一端设有圆锥形中心凸台、另一端设有内廓为圆锥台状的边部凸沿的正六棱柱，边部凸沿内廓的圆锥面与圆锥形中心凸台外廓的圆锥面形状一致、锥尖角大小相等且指向一致，正六棱柱内还设有六个圆形边部通孔和一个圆形中心通孔，本实用新型孔型及端面结构简单，砌筑容易，且能减少格子砖内及同一平面上的应力集中，避免同一个格子砖柱的上、下层之间以及相邻格子砖柱的滑移，对提高热风炉寿命和改善热风炉的供风质量有重要意义。
A checker brick for a hot blast stove. The shape of the checker brick is a regular hexagonal prism with a conical central boss at one end and a truncated conical inner profile with a convex edge at the other end. The edge is convex along the conical surface of the inner profile. Consistent with the shape of the conical surface of the conical central boss, the cone tip angle is equal in size and pointing in the same direction, and there are six circular side through holes and one circular central through hole in the regular hexagonal prism. And the end surface structure is simple, easy to build, and can reduce the stress concentration in the checker brick and on the same plane, avoid the slippage between the upper and lower layers of the same checker brick column and adjacent checker brick columns, and improve the life of the hot blast stove It is of great significance to improve the air supply quality of the hot blast stove.
Description
技术领域technical field
本实用新型属于窑炉技术领域，具体的说是涉及一种热风炉用格子砖。The utility model belongs to the technical field of kilns, and in particular relates to a checker brick for a hot blast stove.
背景技术Background technique
目前，为解决高炉热风炉用格子砖受结构、气流温度、压力及流速不均的不利影响，一种高炉热风炉用格子砖（中国专利CN205784604U）提供了一种孔型简单、结构紧凑、能减少格子砖内应力集中，能错层铺砌防止格子砖层间滑移、坍塌的子砖，这种格子砖的端面结构复杂，砌筑时对缝、对槽困难，且必须错层铺砌才能防止格子砖层间滑移，格子砖使用到后期，端面沟槽易发生裂纹和剥落，并易发生每个格子砖柱的上、下层之间的滑移。At present, in order to solve the unfavorable influence of structure, airflow temperature, pressure and flow velocity of checker bricks for blast furnace hot blast stoves, a checker brick for blast furnace hot blast stoves (Chinese patent CN205784604U) provides a simple hole type, compact structure, energy Reduce the internal stress concentration of checker bricks, and can lay staggered layers to prevent the checker bricks from slipping and collapsing. Checker bricks slip between layers. After the checker bricks are used in the later stage, cracks and peeling are prone to occur in the end grooves, and slippage between the upper and lower layers of each checker brick column is prone to occur.
发明内容Contents of the invention
本实用新型的发明目的：Purpose of the invention of the utility model:
主要针对上述情况，为克服现有技术之缺陷，本实用新型之目的就是提供一种能减少格子砖内应力集中，减少对缝、对槽、错层等砌筑不便或困难的，避免端面沟槽裂纹和剥落并能防止同一个格子砖柱上、下层之间滑移的、端面结构简单的热风炉用格子砖。Mainly aimed at the above situation, in order to overcome the defects of the prior art, the purpose of this utility model is to provide a checker brick that can reduce the internal stress concentration, reduce the inconvenience or difficulty of laying joints, grooves, and staggered layers, and avoid end face grooves. Checker bricks for hot blast stoves with groove cracks and spalling, which can prevent slippage between the upper and lower layers of the same checker brick column, and have a simple end structure.
本实用新型的技术方案为：The technical scheme of the utility model is:
提供了一种热风炉用格子砖，格子砖的外形为一端设有圆锥形中心凸台、另一端设有内廓为圆锥台状的边部凸沿的正六棱柱，正六棱柱的相邻侧平面相交的棱为与侧平面相切的过渡圆柱面，圆锥形中心凸台位于正六棱柱的一个端面上，且圆锥形中心凸台的小端面与正六棱柱的端面平行，边部凸沿内廓的圆锥面与圆锥形中心凸台外廓的圆锥面形状一致、锥尖角大小相等且指向一致，边部凸沿内廓的圆锥面及圆锥形中心凸台外廓的圆锥面的锥尖角均不小于90o，圆锥形中心凸台、边部凸沿的中心轴线与正六棱柱的中心轴线重合，边部凸沿部位的外侧面与正六棱柱的侧面形状一致大小相等，边部凸沿内廓圆锥台的小端面与圆锥形中心凸台的小端面平行，边部凸沿内廓圆锥台的高度大于圆锥形中心凸台的高度1～5mm，正六棱柱内还设有六个圆形边部通孔和一个圆形中心通孔，每个边部通孔的中心轴线均位于正六棱柱的楞角线与正六棱柱的中心轴线形成的平面内，边部通孔的中心轴线均布在以正六棱柱的中心轴线为中轴线的节圆柱面上，中心通孔的中心轴线与正六棱柱的中心轴线重合，中心通孔的直径小于边部通孔的直径，六个边部通孔的轴线均与正六棱柱的中心轴线平行，中心通孔的轴线以及每个边部通孔中心所在节圆柱面的中心轴线与正六棱柱的中心轴线重合，六个边部通孔均位于以边部凸沿内廓圆锥台底为直径的圆柱面范围之内。Provided is a checker brick for a hot blast stove. The shape of the checker brick is a regular hexagonal prism with a conical central boss at one end and a truncated conical edge at the other end. The adjacent side planes of the regular hexagonal prism The intersecting edge is a transition cylindrical surface tangent to the side plane, the conical central boss is located on one end face of the regular hexagonal prism, and the small end face of the conical central boss is parallel to the end face of the regular hexagonal prism, and the edge protrudes along the inner profile The conical surface and the conical surface of the conical central boss have the same shape, the cone tip angles are equal in size and point in the same direction, and the conical surface of the edge convex edge and the conical surface of the conical central boss are the same. Not less than 90 o , the central axis of the conical central boss and the edge of the edge coincides with the central axis of the regular hexagonal prism, the outer surface of the edge convex edge is consistent with the shape and size of the side of the regular hexagonal prism, and the edge is convex along the inner profile The small end face of the truncated cone is parallel to the small end face of the conical center boss, and the edge protrudes along the inner contour. The height of the truncated cone is 1-5mm greater than the height of the conical center boss, and there are six circular sides in the regular hexagonal prism. Through holes and a circular central through hole, the central axis of each edge through hole is located in the plane formed by the corrugated line of the regular hexagonal prism and the central axis of the regular hexagonal prism, and the central axes of the edge through holes are evenly distributed in the regular hexagonal prism. The central axis of the prism is the nodal cylindrical surface of the central axis, the central axis of the central through hole coincides with the central axis of the regular hexagonal prism, the diameter of the central through hole is smaller than the diameter of the edge through hole, and the axes of the six edge through holes are all aligned with the The central axis of the regular hexagonal prism is parallel, the axis of the central through hole and the central axis of the section cylindrical surface where the center of each side through hole is coincident with the central axis of the regular hexagonal prism, and the six side through holes are located on the inner contour with the edge convex The base of the frustum of a cone is within the diameter of the cylindrical surface.
本实用新型的有益效果是：The beneficial effects of the utility model are:
本实用新型孔型及端面结构简单，砌筑容易，且能减少格子砖内及同一平面上的应力集中，避免同一个格子砖柱的上、下层之间以及相邻格子砖柱的滑移，对提高热风炉寿命和改善热风炉的供风质量有重要意义。The utility model has simple hole type and end face structure, easy masonry, and can reduce the stress concentration in the checker brick and on the same plane, and avoid the slippage between the upper and lower layers of the same checker brick column and adjacent checker brick columns. It is of great significance to increase the service life of the hot blast stove and improve the air supply quality of the hot blast stove.
附图说明Description of drawings
图1为本实用新型的立体俯视示意图。Fig. 1 is a three-dimensional top view diagram of the utility model.
图2为本实用新型的立体仰视示意图。Fig. 2 is a three-dimensional bottom view diagram of the utility model.
图3为本实用新型的主视剖视图。Fig. 3 is a front sectional view of the utility model.
图4为本实用新型的横断面图。Fig. 4 is a cross-sectional view of the utility model.
其中：1为圆锥形中心凸台；2为边部凸沿；3为正六棱柱；4为边部通孔；5为中心通孔。Among them: 1 is a conical central boss; 2 is a convex edge at the side; 3 is a regular hexagonal prism; 4 is a through hole at the side; 5 is a through hole at the center.
具体实施方式Detailed ways
以下结合附图对本实用新型的具体实施方式作进一步详细说明。The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.
由图1至图4给出，本实用新型的外形为一端设有圆锥形中心凸台1、另一端设有内廓为圆锥台状的边部凸沿2的正六棱柱3，正六棱柱3的相邻侧平面相交的棱为与侧平面相切的过渡圆柱面，圆锥形中心凸台1位于正六棱柱3的一个端面上，且圆锥形中心凸台1的小端面与正六棱柱3的端面平行，边部凸沿2内廓的圆锥面与圆锥形中心凸台1外廓的圆锥面形状一致、锥尖角大小相等且指向一致，边部凸沿2内廓的圆锥面及圆锥形中心凸台1外廓的圆锥面的锥尖角均不小于90o，圆锥形中心凸台1、边部凸沿2的中心轴线与正六棱柱3的中心轴线重合，边部凸沿2部位的外侧面与正六棱柱1的侧面形状一致大小相等，边部凸沿2内廓圆锥台的小端面与圆锥形中心凸台1的小端面平行，边部凸沿2内廓圆锥台的高度大于圆锥形中心凸台1的高度1～5mm，正六棱柱3内还设有六个圆形边部通孔4和一个圆形中心通孔5，每个边部通孔4的中心轴线均位于正六棱柱3的楞角线与正六棱柱3的中心轴线形成的平面内，边部通孔4的中心轴线均布在以正六棱柱3的中心轴线为中轴线的节圆柱面上，中心通孔5的中心轴线与正六棱柱3的中心轴线重合，中心通孔5的直径小于边部通孔4的直径，六个边部通孔4的轴线均与正六棱柱3的中心轴线平行，中心通孔5的轴线以及每个边部通孔4中心所在节圆柱面的中心轴线与正六棱柱3的中心轴线重合，六个边部通孔4均位于以边部凸沿2内廓圆锥台底为直径的圆柱面范围之内。Provided by Fig. 1 to Fig. 4, the appearance of the present utility model is that one end is provided with conical central boss 1, and the other end is provided with the regular hexagonal prism 3 that the inner profile is the frustum-shaped side convex edge 2, and the regular hexagonal prism 3 The intersecting edge of adjacent side planes is a transitional cylindrical surface tangent to the side plane, the conical central boss 1 is located on one end face of the regular hexagonal prism 3, and the small end face of the conical central boss 1 is parallel to the end face of the regular hexagonal prism 3 , the conical surface of the inner contour of the side convex edge 2 is consistent with the conical surface of the outer contour of the conical central boss 1, the cone tip angles are equal in size and pointing in the same direction, the conical surface of the inner contour of the edge convex edge 2 and the conical central convex The cone tip angles of the conical surface of the outer profile of platform 1 are not less than 90o , the central axis of the conical central boss 1 and the side convex edge 2 coincide with the central axis of the regular hexagonal prism 3, and the outer surface of the side convex edge 2 Consistent with the side shape of the regular hexagonal prism 1 and equal in size, the small end face of the side convex edge 2 inner contour truncated cone is parallel to the small end face of the conical central boss 1, and the height of the side convex edge 2 inner contour truncated cone is greater than the conical center The height of the boss 1 is 1-5mm, and the regular hexagonal prism 3 is also provided with six circular edge through holes 4 and a circular central through hole 5, and the central axis of each edge through hole 4 is located at the center of the regular hexagonal prism 3. In the plane formed by the corrugated angle line and the central axis of the regular hexagonal prism 3, the central axis of the edge through hole 4 is evenly distributed on the joint cylindrical surface with the central axis of the regular hexagonal prism 3 as the central axis, and the central axis of the central through hole 5 and The central axis of regular hexagonal prism 3 coincides, and the diameter of central through hole 5 is less than the diameter of edge portion through hole 4, and the axis of six edge portion through holes 4 is all parallel with the central axis of regular hexagonal prism 3, and the axis of central through hole 5 and each The central axis of the joint cylindrical surface where the center of the edge through hole 4 is coincident with the central axis of the regular hexagonal prism 3, and the six edge through holes 4 are all located within the range of the cylindrical surface with the diameter of the edge convex edge 2 inner contour frustum of the cone. Inside.
所述的六个边部通孔4的轴线所在的节圆柱面的半径在正六棱柱3相邻侧平面延伸交叉线和中心通孔5中心轴线距离的50%～80%的范围内。The radius of the segmented cylindrical surface where the axes of the six side through holes 4 are located is within the range of 50% to 80% of the distance between the intersection line extending from the adjacent side planes of the regular hexagonal prism 3 and the central axis of the central through hole 5 .
实施例一：Embodiment one:
本实用新型的正六棱柱的相对两侧平面间的垂直距离均为230±1mm，高度为230mm，格子砖上端面上的圆锥形中心凸台1底面的直径为218mm，高16mm，边部凸沿2内廓圆锥形的高为20mm，底面直径218mm, 边部凸沿2内廓圆锥形与中心凸台1外廓锥圆锥形的锥尖角均为120o，正六棱柱3的相邻侧平面相交的棱为与侧平面相切的过渡圆柱面的半径为10mm，正六棱柱3内的六个圆形边部通孔4的直径均为60mm，圆形中心通孔5的直径为50mm，格子砖的材质为镁质耐火材料，且其成分中MgO的含量大于90%，砌筑时采用同一种高度的格子砖，砌筑时首层格子砖的圆锥形中心凸台1向上、边部凸沿2向下水平铺砌好，然后将第二层格子砖的边部凸沿2扣砌在位于其下部的格子砖的圆锥形中心凸台1上，调整砖的方向，使上、下层的每个侧面平整对应，砌筑后，由于下层格子砖的圆锥形中心凸台1插装在上层格子砖圆锥形边部凸沿2的内廓内，就能避免或减少侧向或水平方向滑移，砌筑时将格子砖的六个侧面均与其周围的格子砖相互贴紧，从而可避免格子砖因气流或其它原因产生的侧向或水平向滑移，格子砖在使用时，气流沿边部通孔4和中心通孔5轴向流动，因格子砖的边部凸沿2的圆锥形内廓的高度大于圆锥形中心凸台1的高度，这样在下层格子砖和上层格子砖之间形成了一个盘状间隙，此时，气流在沿下层格子砖的边部通孔4和中心通孔5向上层流动时，就会产生抽吸或混合作用，经一层或多层盘状间隙的均压、均温、均速作用后，使每个格子砖内与气体流动方向平行的同一高度上不同区域的温度趋于一致，可减少或避免同一高度面上的横向应力集中。The vertical distance between the planes on opposite sides of the regular hexagonal prism of the utility model is 230 ± 1mm, and the height is 230mm. The diameter of the conical center boss 1 bottom surface on the upper end surface of the checker brick is 218mm, the height is 16mm, and the edge is convex. 2 The height of the conical shape of the inner contour is 20mm, the diameter of the bottom surface is 218mm , and the edge is convex. The intersecting edge is 10mm with the radius of the transition cylindrical surface tangent to the side plane, the diameter of the six circular edge through holes 4 in the regular hexagonal prism 3 is 60mm, and the diameter of the circular center through hole 5 is 50mm. The material of the brick is magnesia refractory material, and the content of MgO in its composition is greater than 90%. Checker bricks of the same height are used for masonry. Lay horizontally downward along 2, and then buckle the side convex edge 2 of the checker brick of the second layer on the conical central boss 1 of the checker brick located at its lower part, adjust the direction of the brick so that each of the upper and lower floors The two sides are flat and corresponding. After the masonry, since the conical center boss 1 of the checker brick of the lower layer is inserted into the inner profile of the conical side convex edge 2 of the checker brick of the upper layer, lateral or horizontal slippage can be avoided or reduced. During masonry, the six sides of the checker bricks are closely attached to the surrounding checker bricks, so as to avoid the lateral or horizontal slippage of the checker bricks due to airflow or other reasons. When the checker bricks are in use, the airflow along the edge The through hole 4 and the central through hole 5 flow axially, because the height of the conical inner profile of the side convex edge 2 of the checker brick is greater than the height of the conical central boss 1, thus forming a gap between the lower checker brick and the upper checker brick. At this time, when the air flow flows upward along the edge through hole 4 and the central through hole 5 of the checker brick in the lower layer, it will produce suction or mixing, and pass through one or more layers of disc gaps. After equalizing pressure, equalizing temperature, and equalizing speed, the temperature in different regions at the same height parallel to the gas flow direction in each checker brick tends to be consistent, which can reduce or avoid the transverse stress concentration on the same height.
本实用新型孔型及端面结构简单，砌筑容易，且能减少格子砖内及同一平面上的应力集中，避免同一个格子砖柱的上、下层之间以及相邻格子砖柱的滑移，对提高热风炉寿命和改善热风炉的供风质量有重要意义。The utility model has simple hole type and end face structure, easy masonry, and can reduce the stress concentration in the checker brick and on the same plane, and avoid the slippage between the upper and lower layers of the same checker brick column and adjacent checker brick columns. It is of great significance to increase the service life of the hot blast stove and improve the air supply quality of the hot blast stove.
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| CN201820365881.0U CN207958415U (en) | 2018-03-19 | 2018-03-19 | A kind of lattice brick used for hot-blast stove |
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| CN201820365881.0U CN207958415U (en) | 2018-03-19 | 2018-03-19 | A kind of lattice brick used for hot-blast stove |
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