189results about "Lining supports" patented technology

Exemplary embodiments of the invention provide a molten metal containment structure including a refractory molten metal containment vessel having an external surface, and a metal casing for the vessel having an internal surface at least partially surrounding the external surface of the vessel at a distance therefrom forming a spacing between the vessel and the casing. The spacing includes an unobstructed upwardly extending gap that is vented to the exterior of the structure by upper and lower openings in the casing. A layer of insulating material is preferably positioned in the spacing between the internal surface of the casing and the external surface of the vessel, with the layer of insulating material being narrower than the spacing at least at upwardly extending sides of the casing, thereby forming the unobstructed gap. The vessel may be a metal conveying trough, a housing for a metal filter, a container for a metal degasser unit, a crucible, or the like.

A refractory hanger brick for high temperature industrial furnace roof construction having an elongated upwardly extending refractory portion having a generally rectangular cross section and a lower refractory base portion having a generally rectangular lower face, each side of the base portion having a base length greater than a corresponding side of the elongated upwardly extending refractory portion so as to provide support for insulating material and/or adjacent filler bricks. The upper end of the elongated upwardly extending refractory portion distal from the lower refractory base portion forms a hanger recess along opposite sides of the upper end. At least one generally laterally extending lug is disposed above each of the hanger recesses to retain the hanger in a fixed position and to provide at least one hanger position along the upper end opposite sides.

The invention relates to a heat shield arrangement for a hot gas conducting structure, in particular a metal component of a gas turbine unit or combustion chamber, with the heat shield elements anchored adjacently on a support structure to cover a surface. Said heat shield elements each comprise a lateral groove, arranged in the region of the edge of the surface thereof facing the hot gas, at least two adjacent shield elements are connected by at least one seal element mounted in the groove. The seal element is embodied as a sealing flap, which may be displaced from a first position to a second position and vice versa, whereby the first position is an open position without a sealing effect and the second position is a closed position with a sealing effect. According to said method the sealing flap is moved from the first to the second position by the movement of a heat shield element.

The invention provides a large-area tuyere zone fluidizaton roasting furnace refractory lining. A steel fibrous reinforced castable or a high intensity low cement castable refractory is adopted to be cast with the furnace steel housing into a whole. The inside of the refractory lining is provided with a plurality of heat-proof stainless steel clips. The end surface of one end of each heat-proof stainless steel clip is welded with the furnace steel housing; the other end of each heat-proof stainless steel clip is lied inside the furnace refractory lining in a separated way or a ring-shaped link way. The heat-proof stainless steel clip is also applied by more than two layers of asphalt lac. A camber angle ring beam is arranged between the inner layer of the spherical vault and the combined furnace wall of the furnace body. The lower part of the furnace lining weight adopts the way of combing the bearing of an anchor ear beam and a furnace wall rivet clamping element. Under the condition that the roasting technology is not changed, the furnace body thins the furnace wall, and the furnace lining mass is reduced by 20 to 25 percent, thereby greatly lowering the cost, improving the leak tightness of the furnace body, preventing an isolated layer from being damaged, solving the problem that the insulating layer leaks SO2 to erode the furnace housing, improving the intensity, the air tightness and the stability of the furnace top and enhancing the whole structure of the furnace body.

An embodiment of the invention includes a riser reactor for reacting a feedstock and catalyst. The riser reactor wall defines an interior. A continuous refractory lining is attached to the reactor wall and defines a plurality of flow disruptors that extend inward from the wall into the reactor interior and disrupt flow patterns of the feedstock and catalyst.

The invention discloses a masonry method for rotary kilns. The masonry method includes steps of (1), dividing areas; (2), welding anchoring parts; (3), mounting precast bricks; (4), pouring mortar. The masonry method has the advantages that integral precast brick layers are divided into a plurality of areas, when the precast bricks in a certain area fall off, the integrity of the other areas can be guaranteed, accordingly, the cost can be saved, and workload on workers can be reduced; mortar joints are reserved among the various adjacent precast bricks, so that the integrity of the rotary kilns can be corrected, and accidents caused by the fact that only refractory mortar in joints is squeezed when existing precast bricks are heated and expanded, and the existing precast bricks are squeezed by one another, are broken and fall off can be prevented; the precast bricks are fixed to kiln bodies by the aid of the anchoring parts, so that joints among the precast bricks and the inner walls of the kiln bodies can be set and prevent the precast bricks from squeezing the inner walls of the kiln bodies when the precast bricks are radially expanded, and accidents caused by the fact that the inner walls of existing kiln bodies are squeezed by the existing precast bricks and anchoring parts are broken can be prevented.

A suspended ceiling structure for a refrigerated storage and a construction method thereof are provided. The suspended ceiling structure comprises a ceiling grid which comprises a main grid, hanging members and an attachment grid. An insulating strip made of polyurethane foam is placed on the main grid so as to serve as a cushion block. An upper color-coated steel sheet is provided above the insulating strip and a lower color-coated steel sheet is arranged below the main grid. A thermal break component is arranged between the main grid and the lower steel sheet, and a polyurethane insulating material is sprayed in successive layers between the upper and lower color coated steel sheets. The ceiling structure can improve the insulation effect of the refrigerated storage and save energy.

A device for introducing hot gas into a heating surface pipe of a waste heat boiler includes an outer pipe that is connected to the boiler wall, preferably to the bottom of the pipe. The device also includes an inner pipe or entry pipe that has an admission section that is cylindrical or conically narrows and also has a discharge section that is connected to the heating surface pipe. The inner pipe is connected to the outer pipe via a rounded reversible cap while forming an entry opening for the hot gas. The inner pipe is surrounded by the outer pipe at a distance. The device also includes a coolant guiding pipe, which is placed between the outer pipe and the inner pipe and which extends into the proximity of the reversible cap. The guiding pipe is provided in the form of a force-transmitting component and is connected, in a removable or fixed manner, both to the inner pipe as well as to the outer pipe each time with at least three connecting ribs which are uniformly distributed over the periphery and which are provided for introducing or transferring forces.

A hot blast stove dome comprises a first dome portion adapted for support on a combustion chamber wall of a hot blast stove, and a second dome portion adapted for support on a checker chamber wall of a hot blast stove, wherein a vertical expansion joint is provided between the first dome portion and the second dome portion and is adapted to allow the first dome portion and the second dome portion to independently accommodate vertical expansion of their respective supporting walls. The dome is suitably provided in a hot blast stove which comprises a combustion chamber, a checker chamber, a cylindrical housing comprising a combustion chamber wall and a checker chamber wall.

Exemplary embodiments of the invention relate to a compressive rod assembly for applying force to a refractory vessel positioned within an outer metal casing. The assembly includes a rigid elongated rod having first and second opposed ends, a threaded bolt adjacent to the first opposed end of the elongated rod, and a compressive structure positioned operationally between the elongated rod and the bolt. Compressive force applied by the bolt to the elongated rod passes through the compressive structure which allows limited longitudinal movements of the elongated rod to be accommodated by the compressive structure without requiring corresponding longitudinal movements of the bolt. Exemplary embodiments also relate to rod structure forming a component of the assembly, and to a metal containment structure having a vessel supported and compressed by at least one such assembly.

A Y-shaped refractory anchor, a plurality of Y-shaped refractory anchors, and a method of installing a plurality of Y-shaped refractory anchors in a hexagonal pattern is disclosed. The Y-shaped refractory anchor comprises a singular folded metal plate comprising a stem that comprises at least one triangular section to be welded to a backing surface and a folded stem base and a branch section comprising two branches, wherein the singular metal plate is folded together at the stem base, such that the stem of the Y-shaped anchor is twice as thick as the two individual branches.

The invention belongs to the technical field of fire-resistant material spraying and especially relates to a fire-resistant liner for a warm air pipeline and a paving method thereof. The fire-resistant liner comprises the warm air pipeline and is characterized by comprising a set of anchoring nails, a fire-resistant fiber felt and a spraying coating layer, wherein the anchoring nails are welded with an inner wall of the warm air pipeline; the fire-resistant fiber felt penetrates through the anchoring nails and is grafted with the inner wall of the warm air pipeline; and the spraying coating layer is sprayed and coated on the surface of the fire-resistant fiber felt. The structures, such as a fire-resistant stainless steel network and a quick clamping sheet, for fixing the fire-resistant fiber felt and the spraying coating layer during the paving process of the original fire-resistant liner for the warm air pipeline are omitted by the fire-resistant liner provided by the invention; the anchoring nails are used for fixing the fire-resistant fiber felt and the spraying coating; and under the condition of maintaining each performance index of the original fire-resistant liner, the spraying coating construction efficiency of the warm air pipeline is increased, the operation time is reduced and the service life of the warm air pipeline is prolonged.

A metallurgical furnace including a refractory, which may include an inner layer, including bricks of a first type having a heat dissipation thickness, and bricks of a second type having a greater sacrificial thickness and protruding towards the furnace space. The furnace may include a force exerting member for contracting a segmented outer shell around the refractory, inward, as the refractory contracts when cooling. The force exerting member may include a tension member. The furnace may include a vertical compression member for exerting a compressive force upon the refractory, vertically compressing the refractory as it contracts. The furnace may include a cooling system, including a sleeve surrounding a layer of heated air, and air displacement members for displacing away the heated air. The furnace may include a roof, having suspension members extending therethrough, supporting an inner mesh, the inner mesh supporting insulating material. The furnace may also include an electrode seal having a plurality of shoes biased against the electrode(s).

A monolithic refractory anchor which has a bridge portion and first and second V-shaped end portions attached to opposite ends of the bridge portion. The anchor has a pedestal located generally centrally of the anchor which extends below the bottom surfaces of the wing portions of the V-shaped sections, the pedestal forming a single welding attachment point for attachment, preferably by stud welding, to a metal substrate.

The invention relates to an anchoring piece for a hearth, in particular to a combination anchoring piece with an armor resistant to thermal stress. A hollow hole is formed in a fixed bolt, and the fixed bolt is fixedly mounted on a furnace wall shell. A connecting piece is in an S-shaped bending structure, one end of the connecting piece is connected with a bolt, and the other end of the connecting piece is connected with a horn made of ceramics. The bolt is inserted into the hole of the fixed bolt, and the horn is in a hollow structure. The smaller head of the horn is connected with the connecting piece, and a step is arranged on the outer wall of the larger head of the horn. According to the combination anchoring piece, the bolt and the connecting piece are made of heat-resistant stainless steel materials, the bolt is inserted into the hole of the fixed bolt and can rotate, and the free expansion of a furnace wall is facilitated; the connecting piece is in the S-shaped bending structure, so that the stress caused by thermal expansion and cold contraction of the furnace wall is effectively neutralized; the horn is made of the ceramics, the thermal expansion and cold contraction of the horn are relatively little, and the corrosion resistance is good; the horn shape can keep the tensile force to the furnace wall, and the stability of the furnace wall is improved.

The invention relates to a heat shield element for lining a combustion chamber wall, to a combustion chamber and to a gas turbine. The heat shield element comprises a hot side that can be exposed to a hot medium, a wall side opposite said hot side, and a peripheral side adjoining the hot side and the wall side and having a peripheral side surface. Relief slots are introduced into the material in an area of the heat shield element that is susceptible to material cracks induced by thermal stress, thereby limiting crack propagation.

An industry furnace lining is arranged in the industry furnace shell and comprises an inner high temperature resistant layer and an outer heat-insulating layer, the bottom of the inner high temperature resistant layer is built by impervious bricks, a whole reverse U-shaped structural member made of high temperature resistant non-metal composite material is taken as an inner lining on the two sides and the top; the bottom of the outer heat-insulating layer is built by the insulating bricks, the two sides of the top of the outer heat-insulating layer are built by light high-alumina refractory fiber modules. The industry furnace lining of the invention has advantages of short furnace building period, low maintenance cost and long service life; and can implement the rapid temperature raising and descending of the furnace kiln.

The present invention addresses the problem of easily and suitably performing, in a short time, repair work on an industrial furnace inner face using a stud bolt connecting member that connects to a stud bolt when repairing the inner face of an industrial furnace on which a lining material is mounted by the stud bolt, which is provided on the inner face of the furnace wall, passing through the lining material. To repair an inner face of an industrial furnace on which a lining material (2) is mounted on the inner face of the furnace wall (1) by a stud bolt (3) provided on the inner face of the furnace wall passing through the lining material that contains at least an insulating material, a stud bolt connecting member (10) has a connecting cylindrical portion (11) through which the distal end of a stud bolt is inserted and a bolt portion (12) projecting from the distal end of the connecting cylindrical portion and is provided with an opening (13) for welding the stud bolt to the connecting cylindrical portion.

Provided is an anchoring method of a kiln liner of cylindrical rotary thermal equipment. Three kinds of metal anchoring parts of different shapes are manufactured, refractory building block anchoring bricks with convex grooves and concave grooves are designed and manufactured, fixing anchoring force is exerted on the root of the kiln liner, stabilizing anchoring force is exerted on the middle of the kiln liner, pulling anchoring force is exerted on the upper portion of the kiln liner, and the anchoring points at the root of the kiln liner are at least 1.5 times those of the middle or the upper portion of the kiln liner. Four kinds of metal anchoring parts and the anchoring bricks made of refractory building blocks exert anchoring force on the root, the middle and the upper portion of the kiln liner, long-term stable anchoring is formed in the kiln liner of the rotary thermal equipment from normal temperature to high temperature more than 1400 DEG C, sliding and displacement of the kiln liner are solved effectively, combination intensity of the kiln liner and the inner wall of a furnace body is enhanced, the kiln liner is prevented from falling off or being damaged, the service life of the kiln liner is prolonged, the number of maintenance times is reduced, cost is saved, and the utilization rate of the equipment is improved.

A sidewall for a metallurgical furnace and a metallurgical furnace having the same are described herein. In one example, a sidewall of a metallurgical furnace is provided that includes an outer wall, a hot plate and a buckstay. The hot plate is coupled in a spaced apart relation to the outer wall. The buckstay is mechanically coupled to the outer wall and the hot plate. The buckstay includes a buckstay web extending from a buckstay flange. The buckstay web includes a first end coupled to the buckstay flange, and a second end mechanically and movably coupled to the hot plate.

An exemplary embodiment of the invention provides a method of preparing a reinforced refractory joint between refractory sections of a vessel used for containing or conveying molten metal, e.g. a metal-contacting trough. The method involves introducing a mesh body made of metal wires into a gap between metal-contacting surfaces of adjacent refractory sections of a vessel so that the mesh body is positioned beneath the metal conveying surfaces, and covering the mesh body with a layer of moldable refractory material to seal the gap between the metal-contacting surfaces. Other embodiments relate to a vessel formed by the method and a vessel section with a pre-positioned mesh body suitable for preparing a sealed joint with other such sections.

The invention discloses a heating furnace brick holding frame structure which comprises a brick holding plate, a brick pulling rod and a heating furnace wall plate. The brick pulling rod is in a strip-shaped structure. The cross-section of the strip-shaped structure is F-shaped. Two shorter sides parallel to each other of the F-shape cross section are connected with the heating furnace wall plate. The brick holding plate comprises a plate body and a support. A bending portion towards the reverse surface of the plate body is arranged on one edge of the plate body. The support is connected with the reverse surface of the plate body. The support is L-shaped. One side of the L-shaped support is connected with the plate body. The bending portion of the plate body is fastened on the longer side of the L-shaped support. The other side of the L-shaped support directs toward the bending portion and abuts against the heating furnace wall plate. Due to the structure of the heating furnace brick holding frame, the heating furnace brick holding frame structure can be manufactured in a casting mode and applied to various heating furnaces. In this way, novel alloy materials can be selected to use, and heat-resistant property of the heating furnace brick holding frame structure is improved.