CN214308175U - Furnace top heat preservation structure of carbon roasting furnace - Google Patents
Furnace top heat preservation structure of carbon roasting furnace Download PDFInfo
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- CN214308175U CN214308175U CN202120502194.0U CN202120502194U CN214308175U CN 214308175 U CN214308175 U CN 214308175U CN 202120502194 U CN202120502194 U CN 202120502194U CN 214308175 U CN214308175 U CN 214308175U
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Abstract
The utility model discloses a furnace top heat preservation structure of a carbon roasting furnace. A furnace top heat preservation structure of a carbon roasting furnace comprises a cotton felt heat preservation layer and a heavy castable precast block heat preservation layer, wherein the heavy castable precast block heat preservation layer comprises at least 1800 strip-shaped carbon roasting furnace top heat preservation blocks which are sequentially arranged on the cotton felt heat preservation layer; 4 high-alumina hydrogen-accumulating heat-insulating bricks are poured and embedded in the left concave groove and the right concave groove of the lower bottom surface of the heat-insulating block at the top of the strip-shaped carbon roasting furnace respectively and sequentially by using heavy pouring materials. The utility model reduces the heat loss at the top of the carbon roasting furnace, realizes energy saving and consumption reduction, and reduces the production cost of the anode carbon block; the problem that materials fall into a flame path and a swelling gap cotton felt deviates and deforms due to cast-in-place of the top of the carbon roasting furnace in the existing top heat preservation structure of the carbon roasting furnace is solved; the service life of the heat preservation block part at the top of the bar-shaped carbon roasting furnace is prolonged.
Description
Technical Field
The utility model belongs to a carbon roasting furnace, in particular to a furnace top heat preservation structure of the carbon roasting furnace.
Background
The top heat preservation structure of the existing carbon roasting furnace generally adopts two modes: the first method is that after the top of a flame path brick is sealed, a corresponding heat preservation cotton felt is paved, then the formwork is erected according to the length and width of the flame path, and then a part framework is placed and fixed according to the specified position and then a heavy castable is poured; and secondly, drawing design is carried out according to the length and width of the flame path and the position of a flame path reserved hole, a carbon roasting furnace top heat-insulating block is manufactured at a place outside a construction site according to drawing size requirements, the casting place is transferred out of the construction site, the casting mode is changed from in-situ casting to off-site prefabrication, and a circular hole is formed in the position of the carbon roasting furnace top heat-insulating block reserved hole and spliced by refractory clay bricks. The furnace top heat-insulating structures of the two carbon roasting furnaces have certain defects: the first cast-in-place carbon roasting furnace top heat preservation structure can not completely ensure that the center distance of each carbon roasting furnace top heat preservation block after casting is completed is within an error range, and the phenomena of deformation and deviation of a dilatation joint cotton felt between the carbon roasting furnace top heat preservation block and the carbon roasting furnace top heat preservation block when the castable is vibrated by a construction appliance manually and the phenomenon that the material falls into a flame path and cannot be cleaned due to cast-in-place (containing water in the castable) are found in the throughout-year furnace construction project. Although the second off-site prefabricated part solves the problems of material falling into a flame path and deflection and deformation of the expansion joint cotton felt caused by cast-in-place and also prevents the phenomenon that castable inside the heat preservation block at the top of the carbon roasting furnace drops off due to high-temperature radiation of flame, the hole position of the heat preservation block at the top of the carbon roasting furnace is spliced with a round hole by using refractory adhesive and soil bricks, but the problem of heat loss at the top of the carbon roasting furnace cannot be solved, and the actually measured temperature at the top of the carbon roasting furnace is usually 100-plus-120 ℃ in the workshop operation process. The problems that materials fall into a flame path and a swelling gap cotton felt is deflected and deformed due to cast-in-place of the top of a carbon roasting furnace can be solved, the heat loss of the top of the carbon roasting furnace is reduced, energy conservation and consumption reduction are realized, and the production cost of an anode carbon block is reduced are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a furnace top heat preservation structure of a carbon roasting furnace. The heat preservation structure of the furnace top of the carbon roasting furnace can solve the problems that materials fall into a flame path and a swelling gap cotton felt deviates and deforms due to cast-in-place of the furnace top of the carbon roasting furnace; the heat loss at the top of the carbon roasting furnace can be reduced, the energy conservation and consumption reduction are realized, and the production cost of the anode carbon block is reduced.
The utility model provides a technical scheme of above-mentioned technical problem is: the utility model provides a carbon bakes burning furnace roof insulation construction over a slow fire, characterized by: the insulation layer comprises a cotton felt insulation layer and a heavy castable precast block insulation layer which are sequentially arranged on the top of a flue wall of the carbon roasting furnace, wherein the heavy castable precast block insulation layer comprises at least 1800 strip-shaped carbon roasting furnace top insulation blocks which are sequentially arranged on the cotton felt insulation layer; the thickness of the cotton felt heat-insulating layer is 50-100 mm, and the thickness of the heavy castable precast block heat-insulating layer is 270-280 mm;
the center of the top surface of the top heat-insulating block of the bar-shaped carbon roasting furnace is provided with a vertical flame-spraying channel which penetrates through to the lower bottom surface, the left side and the right side of the vertical flame-spraying channel of the lower bottom surface of the top heat-insulating block of the bar-shaped carbon roasting furnace are respectively provided with a left inner concave groove and a right inner concave groove along the longitudinal central line, the length of the top heat-insulating block of the bar-shaped carbon roasting furnace is 1290-; the middle position of the top heat-insulating block of the strip-shaped carbon roasting furnace is poured with 2 refractory bricks with semi-arc-shaped cross sections arranged above and below the corresponding side vertical surfaces by using heavy pouring materials, and the left inner concave groove and the right inner concave groove of the bottom surface of the top heat-insulating block of the strip-shaped carbon roasting furnace are respectively poured and embedded with 4 high-alumina poly-hydrogen insulating bricks by using heavy pouring materials in sequence.
The utility model discloses a preparation process of bar carbon roaster top heat preservation piece is: preparing a carbon roasting furnace top heat-insulating block framework 214 following the shape of the strip-shaped carbon roasting furnace top heat-insulating block 21, wherein the lower bottom surface of the carbon roasting furnace top heat-insulating block framework 214 is provided with an inward concave groove along the longitudinal center line; a vibration table of a vibration forming machine (not shown in the attached drawing of the specification) is provided with a carbon roasting furnace top heat preservation block mould (not shown in the attached drawing of the specification), 2 refractory bricks 3 with semicircular inner grooves in cross section are arranged on the upper side and the lower side of the corresponding side elevation and are attached to the two sides of the transverse central line of the bottom of the carbon roasting furnace top heat preservation block mould, 4 high-aluminum poly-hydrogen insulating bricks 4 are respectively and sequentially arranged on the corresponding side elevation arranged on the bottom of the carbon roasting furnace top heat preservation block mould along the longitudinal central line of the bottom of the carbon roasting furnace top heat preservation block mould, the left side and the right side of the 2 refractory bricks 3 with semicircular inner grooves in cross section are arranged on the lower side elevation, gaps formed by pouring heavy refractory bricks are arranged between the 2 refractory bricks 3 with semicircular inner grooves in cross section and attached to the corresponding side elevation on the two sides of the transverse central line of the bottom of the carbon roasting furnace top heat preservation block mould, and the gap is formed by placing the high-aluminum poly-hydrogen insulating bricks 4 in sequence, Gaps for pouring heavy castable are arranged between 2 refractory bricks 3 with semicircular inner grooves in cross sections at the upper and lower parts of corresponding side elevation and adjacent high-alumina hydrogen-accumulating heat-insulating bricks 4 at the left and right sides, gaps for pouring heavy castable are arranged between the adjacent high-alumina hydrogen-accumulating heat-insulating bricks 4 at the left and right sides of the heat-insulating block mould box at the top of the carbon roasting furnace, a heat-insulating block framework 214 at the top of the carbon roasting furnace is buckled in the heat-insulating block mould box at the top of the carbon roasting furnace, concave grooves arranged at the bottom surface of the lower roasting furnace and the heat-insulating block framework 214 at the top of the carbon roasting furnace in the heat-insulating block mould box at the top of the carbon roasting furnace are buckled in corresponding side elevations at the two sides of the transverse center line of the heat-insulating block mould box at the top of the carbon roasting furnace, 2 refractory bricks 3 with semicircular inner grooves in cross sections at the upper and lower parts of the corresponding side elevations, 2 left refractory bricks 3 with semicircular inner grooves in cross sections at the upper and lower parts of the corresponding side elevations, 4 high-alumina poly-hydrogen insulating bricks 4 on the right two sides, 2 refractory bricks corresponding to the side elevation are provided with inner grooves with semicircular cross sections at the upper and lower parts, and the inner grooves are poured by heavy castable to form a vertical flame path 211 which runs through the top insulating block of the bar-shaped carbon roasting furnace; the vibration forming machine is used for preparing the top heat-insulating block 21 of the bar-shaped carbon roasting furnace, so that the volume density and the compressive strength of the top heat-insulating block of the bar-shaped carbon roasting furnace can be improved.
The utility model has the advantages that: because the utility model discloses set up and installed in proper order and baked the cotton felt heat preservation of burning furnace flame path wall top over a slow fire in the charcoal element, heavy weight pouring material prefabricated section heat preservation is including installing 1800 piece bar charcoal element at least on the cotton felt heat preservation in proper order and baking furnace top heat preservation, bar charcoal element bakes burning furnace top heat preservation top surface central point and puts and have a perfect understanding to the vertical flame path of bottom surface down, bar charcoal element bakes burning furnace top heat preservation down the left side of the vertical flame path in bottom surface, the right side both sides are provided with the indent recess respectively along longitudinal centerline, bar charcoal element bakes burning furnace top heat preservation down in the left side indent recess in bottom surface, in the right side indent recess respectively heavy weight pour the material in proper order and pour and inlay 4 blocks of high-alumina poly hydrogen insulating brick. Through detection, the high-aluminum hydrogen-accumulating heat-insulating brick is adopted as a pouring and inlaying lining heat-insulating layer reserved in the left and right concave grooves of the heat-insulating block at the top of the strip-shaped carbon roasting furnace, so that a good heat-insulating effect is achieved, and compared with the existing heat-insulating structure at the top of the carbon roasting furnace, when the temperature of a flame path reaches 1250 ℃, the actually measured temperature of the surface of the top of the carbon roasting furnace is 100-120 ℃, the actually measured temperature of the top of the carbon roasting furnace is 75-80 ℃ when the temperature of the flame path reaches 1250 ℃, so that the heat loss at the top of the carbon roasting furnace is reduced, the energy conservation and consumption reduction are realized, and the production cost of anode carbon blocks is reduced; the problem that materials fall into a flame path and a swelling gap cotton felt deviates and deforms due to cast-in-place of the top of the carbon roasting furnace in the existing top heat preservation structure of the carbon roasting furnace is solved; use the bar carbon element of vibration make-up machine preparation simultaneously to bake burning furnace top insulating block, improved the bulk density and the compressive strength of bar carbon element and baked burning furnace top insulating block, improved the life of bar carbon element and baked burning furnace top insulating block finished piece, the utility model discloses carbon element bakes burning furnace top insulating structure through nearly 1 year's production operation, and bar carbon element bakes burning furnace top insulating block and does not have obvious change on the surface smoothness, and it is more level and smooth and pleasing to the eye to prop up the carbon element of establishing manual casting and bake burning furnace top insulating block appearance for current carbon element bakes burning furnace top insulating structure template, the utility model discloses bar carbon element bakes burning furnace top insulating block withstand voltage and high temperature resistance of top insulating structure and obtains improving.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 and fig. 2 are schematic structural views of a top heat preservation structure of a carbon roasting furnace of the present invention;
FIG. 3, FIG. 4, FIG. 5, FIG. 6 and FIG. 7 are schematic structural views of the top insulating block of the strip-shaped carbon baking furnace of the present invention;
in the drawings: 1. the composite insulation board comprises a cotton felt insulation layer, a 2. heavy castable precast block insulation layer, a 21. strip-shaped carbon roasting furnace top insulation block, a 211. vertical flame path, a 212. left inner concave groove, a 213. right inner concave groove, a 214. carbon roasting furnace top insulation block framework, and 3. upper and lower parts are provided with a fireproof brick with a semicircular inner groove in cross section and a 4. high-alumina hydrogen-gathering insulation brick.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1, 3, 4, 5, 6 and 7, a heat insulating structure of a furnace top of a carbon baking furnace is characterized in that: the insulation layer 2 comprises 1800 strip-shaped carbon baking furnace top insulation blocks 21 which are sequentially arranged on the cotton felt insulation layer 1; the thickness of the cotton felt insulation layer is 50 mm, and the thickness of the heavy castable precast block insulation layer is 280 mm;
the center of the top surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is provided with a vertical fire-spraying channel 211 which penetrates through to the lower bottom surface, the left and right sides of the vertical fire-spraying channel 211 of the lower bottom surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace are respectively provided with a left inner concave groove 212 and a right inner concave groove 213 along the longitudinal central line, the length of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is 1290 mm, the width of the top heat-preserving block is 570 mm, the height of the top heat-preserving block is 270 mm, the length of the left inner concave groove 212 of the lower bottom surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is 460 mm, the width of the top heat-preserving block is 230 mm, the height of the top heat-preserving block is 65 mm, the length of the right inner concave groove 213 of the lower bottom surface of the bar-shaped carbon roasting furnace is 440 mm, the width of 230 mm, and the height of the top heat-preserving block is 65 mm; the middle position of the top heat-insulating block 21 of the strip-shaped carbon roasting furnace is poured with heavy pouring materials, 2 refractory bricks 3 with semi-arc-shaped cross sections are arranged above and below the corresponding side vertical surfaces, and 4 high-alumina hydrogen-accumulating heat-insulating bricks 4 are respectively poured and embedded in the left inner concave groove 212 and the right inner concave groove 213 of the lower bottom surface of the top heat-insulating block 21 of the strip-shaped carbon roasting furnace by using the heavy pouring materials in sequence.
Example 2
As shown in fig. 1, 3, 4, 5, 6 and 7, a heat insulating structure of a furnace top of a carbon baking furnace is characterized in that: the insulation layer 2 comprises 1800 strip-shaped carbon baking furnace top insulation blocks 21 which are sequentially arranged on the cotton felt insulation layer 1; the thickness of the cotton felt insulating layer is 100 mm, and the thickness of the heavy castable precast block insulating layer is 270 mm;
the center of the top surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is provided with a vertical fire-spraying channel 211 which penetrates through to the lower bottom surface, the left side and the right side of the vertical fire-spraying channel 211 of the lower bottom surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace are respectively provided with a left inner concave groove 212 and a right inner concave groove 213 along the longitudinal central line, the length of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is 1300 mm, the width of the top heat-preserving block is 580 mm, the height of the top heat-preserving block is 275 mm, the length of the left inner concave groove 212 of the lower bottom surface of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is 465 mm, the width of the left inner concave groove is 235 mm, the height of the top heat-preserving block 21 of the bar-shaped carbon roasting furnace is 70 mm, the length of the right inner concave groove 213 of the bottom surface of the bar-shaped carbon roasting furnace is 445 mm, the width of 235 mm, and the height of 70 mm; the middle position of the top heat-insulating block 21 of the strip-shaped carbon roasting furnace is poured with heavy pouring materials, 2 refractory bricks 3 with semi-arc-shaped cross sections are arranged above and below the corresponding side vertical surfaces, and 4 high-alumina hydrogen-accumulating heat-insulating bricks 4 are respectively poured and embedded in the left inner concave groove 212 and the right inner concave groove 213 of the lower bottom surface of the top heat-insulating block 21 of the strip-shaped carbon roasting furnace by using the heavy pouring materials in sequence.
From the above description, those skilled in the art can make various changes and modifications without departing from the technical spirit of the present invention, and the present invention is within the protection scope of the present invention. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.
Claims (1)
1. The utility model provides a carbon bakes burning furnace roof insulation construction over a slow fire, characterized by: the insulation layer comprises a cotton felt insulation layer and a heavy castable precast block insulation layer which are sequentially arranged on the top of a flue wall of the carbon roasting furnace, wherein the heavy castable precast block insulation layer comprises at least 1800 strip-shaped carbon roasting furnace top insulation blocks which are sequentially arranged on the cotton felt insulation layer; the thickness of the cotton felt heat-insulating layer is 50-100 mm, and the thickness of the heavy castable precast block heat-insulating layer is 270-280 mm;
the center of the top surface of the top heat-insulating block of the bar-shaped carbon roasting furnace is provided with a vertical flame-spraying channel which penetrates through to the lower bottom surface, the left side and the right side of the vertical flame-spraying channel of the lower bottom surface of the top heat-insulating block of the bar-shaped carbon roasting furnace are respectively provided with a left inner concave groove and a right inner concave groove along the longitudinal central line, the length of the top heat-insulating block of the bar-shaped carbon roasting furnace is 1290-; the middle position of the top heat-insulating block of the strip-shaped carbon roasting furnace is poured with 2 refractory bricks with semi-arc-shaped cross sections arranged above and below the corresponding side vertical surfaces by using heavy pouring materials, and the left inner concave groove and the right inner concave groove of the bottom surface of the top heat-insulating block of the strip-shaped carbon roasting furnace are respectively poured and embedded with 4 high-alumina poly-hydrogen insulating bricks by using heavy pouring materials in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502194.0U CN214308175U (en) | 2021-03-09 | 2021-03-09 | Furnace top heat preservation structure of carbon roasting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120502194.0U CN214308175U (en) | 2021-03-09 | 2021-03-09 | Furnace top heat preservation structure of carbon roasting furnace |
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| CN214308175U true CN214308175U (en) | 2021-09-28 |
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| CN202120502194.0U Active CN214308175U (en) | 2021-03-09 | 2021-03-09 | Furnace top heat preservation structure of carbon roasting furnace |
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- 2021-03-09 CN CN202120502194.0U patent/CN214308175U/en active Active
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