GB1270062A - Process for treating moulded refractory - Google Patents
Process for treating moulded refractoryInfo
- Publication number
- GB1270062A GB1270062A GB2757870A GB2757870A GB1270062A GB 1270062 A GB1270062 A GB 1270062A GB 2757870 A GB2757870 A GB 2757870A GB 2757870 A GB2757870 A GB 2757870A GB 1270062 A GB1270062 A GB 1270062A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tunnel
- mass
- bricks
- width
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/28—Slip casting
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/30—Drying methods
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
1,270,062. Drying refractory materials. MAKOSID-WERKE AKEN VEB. 8 June, 1970, No. 27578/70. Heading F4G. To reduce the drying time of, and provide high mechanical strength in, moulded bricks 1 of refractory materials either having an MgO or Cr 2 O 3 (or a mixture) content of at least 50% by mass or having an SiO 2 content of at least 55% by mass, a moisture content of 1À4-5% by mass, up to 5% by mass of an adhesive, and a compressive strength of 20-30 kg./cm.<SP>2</SP> at room temperature, the moulded bricks 1 are trans ported through a continuous treatment tunnel in which the bricks 1 are subjected either to infrared radiation or to a counterflow of a drying medium (hot air or flue gases) at a temperature of 250-350‹ C. for 12-20 minutes, and then to a flow (in the transport direction) of cooling air at a temperature of 16-25‹ C. for 10-15 minutes, through nozzles extending across the width of the tunnel or spaced apart across the width of the tunnel, so as to have a moisture content less than 50% of the original aud a compressive strength of at least 80 kg./cm.<SP>2</SP>. Batches of spaced moulded bricks 1 are deposited by an automatic grab system (not shown) on a plate conveyer 2 of a continuous treatment tunnel, and transported step-by-step therethrough. The drying medium is heated by the waste heat from tunnel kilns, and the cooling air is supplied through five nozzles extending the full width of the conveyer 2 or five assemblies 5 of nozzles 4. In the tunnel, the atmosphere may contain CO 2 .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2757870A GB1270062A (en) | 1970-06-08 | 1970-06-08 | Process for treating moulded refractory |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2757870A GB1270062A (en) | 1970-06-08 | 1970-06-08 | Process for treating moulded refractory |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1270062A true GB1270062A (en) | 1972-04-12 |
Family
ID=10261922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2757870A Expired GB1270062A (en) | 1970-06-08 | 1970-06-08 | Process for treating moulded refractory |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1270062A (en) |
-
1970
- 1970-06-08 GB GB2757870A patent/GB1270062A/en not_active Expired
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