CN219223311U - Grate-free composite trolley for high-temperature calcination of mineral materials - Google Patents
Grate-free composite trolley for high-temperature calcination of mineral materials Download PDFInfo
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- CN219223311U CN219223311U CN202222312177.8U CN202222312177U CN219223311U CN 219223311 U CN219223311 U CN 219223311U CN 202222312177 U CN202222312177 U CN 202222312177U CN 219223311 U CN219223311 U CN 219223311U
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Abstract
The utility model discloses a grate-free composite trolley for high-temperature calcination of mineral materials, wherein a lower trolley body comprises a lower trolley body side plate and a first refractory lining body fixed on the inner surface of the lower trolley body side plate, and a heat insulation layer is arranged between the first refractory lining body and the lower trolley body side plate; the grate plate is arranged in a cavity surrounded by the two opposite upper car body side plates and the two opposite upper car body end plates; the utility model has the characteristics of no metal grate, good heat insulation, low vehicle body temperature and the like, overcomes various problems caused by high working temperature of metal grate and metal components of the traditional trolley, can obviously prolong the service life of the trolley and reduce the energy consumption of high-temperature calcination of mineral materials.
Description
Technical Field
The utility model relates to the technical field of mineral material high-temperature calcination equipment, in particular to a grate-free composite trolley for mineral material high-temperature calcination.
Background
One of the high-temperature calcination equipment for ore materials is a trolley of a belt sintering machine for producing sintered ores, and the production process of the belt sintering machine for producing the sintered ores mainly comprises the following steps: firstly, placing the prepared mixture on a trolley, igniting fuel in the mixture, exhausting air, and sintering the mixture into sinter by using high-temperature flue gas generated by combustion; a sintering machine comprises a plurality of circulating trolleys, continuous operation is adopted, and the trolleys reaching the tail part of the sintering machine discharge high-temperature sintering ores and return to the head part of the sintering machine to be charged again for entering an ignition and sintering process, so that the sintering process is circulated and reciprocated.
At present, the trolley body, the baffle plates, the grate bars and the like of the trolley used in the production of the sinter are mostly made of cast iron. The highest sintering temperature of the iron ore sintering process needs to be above 1300 ℃, and the highest sintering temperature can be above 1200 ℃ when the low-temperature sintering process is adopted. At this time, the local highest temperature of the sintering trolley breast board always reaches above 850 ℃, the highest working temperature of the grate bar always reaches above 900 ℃, and the temperature of the trolley body always reaches above 350 ℃; the sintering trolley is cooled in a return lane of the high-temperature sintering ore returning machine head after the tail of the sintering trolley is detached, and the temperatures of the baffle plates, the grate bars and the trolley body are reduced to 100 ℃. It can be seen that the metal trolley is impacted and worn by iron ore stones and sinter during use, and the metal components are corroded by process gas during sintering, and meanwhile, the strength of the metal components is reduced due to high temperature, and the metal components are thermally fatigued and cracked due to high temperature-low temperature alternation; the comprehensive result of the damage factors is that the deformation of the trolley body, the breast board and the grate bar particularly occurs, the problems of the trolley collapsing, the grate bar failure and the like occur, so that the tightness of the trolley is reduced, the ventilation of the grate bar is poor, the production efficiency and the quality of the sintered ore are affected, and the service life of the sintering trolley particularly the grate bar is short. The adoption of the 'bedding material' and the improvement of materials such as heat-resistant spheroidal graphite cast iron, cast steel, high-chromium alloy cast iron and the like for manufacturing the trolley components and the like can achieve a certain use effect in the aspects of reducing the temperature of the grate bars, improving ventilation of the vehicle bottom, prolonging the service lives of the grate bars and the trolley components and the like, but the problems of high temperature, thermal fatigue, strength attenuation, grate bar failure and the like of the trolley components at the moment still exist. Meanwhile, the cost of the sintering machine is obviously increased by adopting high-grade materials to manufacture the vehicle body, the baffle plates and the grate bars, and the economic benefit of sintering production is affected.
The belt type roasting machine for roasting pellets is a pellet roasting device developed by referring to a sintering belt type sintering machine for sintering the pellets. Like the strand sintering machine, the trolley of the pellet strand sintering machine is loading equipment of mineral aggregate (green pellets), and the operation mode in production is as follows: raw ball loading, drying, preheating, roasting, soaking, cooling, ball unloading, returning and raw ball loading, the working condition is very similar to that of the sintering trolley, but the working temperature is higher. Therefore, the pallet of the pellet belt type roasting machine still has the defects of high temperature of the frame, the railing panels and the grate bars, reduced strength of components, thermal fatigue, waist collapse of the frame, failure of the grate bars and the like which are the same as those of the sintering pallet in use. Although the modern pellet belt roasting machine trolley adopts the measures of high-temperature resistant alloy steel, lowering the temperature of the grate bars by using a bedding material, lowering the temperature of the grate plates by using a side paving material to prevent the grate plates from burning out and the like and achieves the effect, the defects caused by high temperature of trolley components, thermal fatigue and the like still exist, and the manufacturing cost of the high-temperature resistant alloy steel trolley and the grate bars is high, so that the equipment investment is obviously increased.
Chinese patent CN110628244B discloses a high temperature energy-saving anticorrosive paint for sintering pallet metal baffle and application method thereof. The utility model sprays or smears fine slurry which is made of zircon powder, silicon carbide powder, mullite powder, ball clay, spodumene, metallic silicon, aluminum magnesium silicate gel powder and water on the metal surface of the baffle plate to form a high temperature resistant energy-saving anti-corrosion ceramic coating, the thickness of the sprayed or smeared coating is 1-2mm, so as to reflect the heat of the material layer, reduce the internal temperature of the baffle plate and prevent corrosion from protecting the inner wall surface of the metal baffle plate. Although the thermal conductivity and the heat radiation receiving rate of the anticorrosive ceramic coating are lower than those of the baffle metal, the anticorrosive ceramic coating has the effects of reducing the temperature of the baffle metal and inhibiting the corrosion of the baffle metal, the temperature of the trolley baffle cannot be obviously reduced due to the thickness of only 1-2mm, so that the technical defects of high temperature, thermal fatigue damage and the like of the trolley baffle cannot be well solved.
Chinese patent CN108727048B discloses oneGrate bar of metal ceramic composite sintering machine and preparation method thereof, the utility model utilizes Al 2 O 3 -SiO 2 The composite grate bar has the characteristics of mullite ceramic and heat-resistant steel fiber, has higher use temperature than a simple metal grate bar, has the characteristics of high strength, high wear resistance and good toughness of the steel fiber of a ceramic material, and can obtain better use effect than a simple metal casting grate bar. However, due to steel fibers and Al 2 O 3 -SiO 2 Mullite ceramics with different thermal expansivity and Al under the working conditions of high temperature and cold-hot circulation 2 O 3 -SiO 2 Ceramic body will develop micro cracks, which will develop gradually with the increase of working time and the increase of the cold and hot circulation times, resulting in Al 2 O 3 -SiO 2 The ceramic body is cracked and peeled off, and finally the failure problems of enlarged gap, bending and the like of the grate bar occur.
Chinese application CN114195409a discloses a trolley with a heat storage layer, in which a heat storage layer made of refractory material is disposed between a high-temperature calcined material and a grate, and in view of heat exchange between the heat storage layer and calcined wind passing through the heat storage layer, the temperature of calcined tail wind discharged from the bottom of the heat storage layer, that is, the temperature of calcined tail wind contacted by the grate is low. The effect of the heat accumulation layer for reducing the calcination tail wind, namely the effect of controlling the temperature of the tail wind below the safe temperature of the grate metal, is yet to be verified because the heat exchange amount of the calcination tail wind and the heat accumulation layer is related to the wind flow speed, the flowing time, the density of the heat accumulation layer, the thermal performance, the surface shape characteristics of the heat exchange layer and the like. Moreover, the grate bars of the trolley still have the defects of cold and hot circulation and thermal fatigue.
The Chinese application patent CN114195409A discloses a trolley with a heat storage layer, and proposes a fire-resistant heat storage layer formed by splicing refractory bricks or a fire-resistant heat storage layer comprising a plurality of fire-resistant heat storage balls. Although this structure has a certain effect in reducing the temperature of the exhaust air exiting the refractory heat storage layer, the metal car body, the metal support beams in the refractory heat storage balls still directly contact the high-temperature gas flowing through the refractory heat storage layer, and the working temperature of the metal car body and the metal support beams is still high, and the problems of deformation, strength attenuation, gas corrosion and thermal fatigue still exist.
The trolley with the heat storage layer disclosed in the Chinese application patent CN114195409A is capable of embedding a side heat insulation guard plate on the trolley guard plate to replace the original mode of circulating the trolley to spread rim charge in the working process, and protecting the trolley guard plate by utilizing a heat insulation mode, so that special equipment and screening equipment for paving rim charge in the existing belt type roasting machine technology can be omitted, and the heat insulation guard plate only needs to have better heat resistance and heat insulation capacity. The side wall of the trolley of the belt roasting machine can be comprehensively damaged by factors such as impact and abrasion of raw pellets, abrasion of discharged pellets, corrosion of high-temperature roasting process gas, high-temperature effect above 1200 ℃ and thermal fatigue caused by large-range cold and heat circulation in the production process, and if the side heat insulation protection plate with better high-temperature resistance and heat insulation capacity is embedded on the trolley protection plate, the protection plate has the defects of short service life, increased daily overhaul and maintenance amount and production cost under the comprehensive influence of the factors such as impact and abrasion of raw pellets and pellets, corrosion of process gas, thermal fatigue and the like.
In summary, the existing sintering belt machines for sintering ores, trolleys and grate bars of the sintering belt machines for pellets have the defects of component deformation, strength attenuation, thermal fatigue damage, grate bar failure and the like due to high working temperature, large temperature difference cold-hot circulation and the like; the published patent or patent application technology provides a technical scheme for reducing the temperature of the trolley, the temperature of the grate bars and the like, but has limited effect or needs to be verified. Analyzing these defects, the high operating temperature of the trolley is a core cause of problems with conventional trolleys. If the temperature of the trolley and the grate bars can be reduced below the safe temperature of common metals, the technical defects of deformation, strength attenuation, grate bar failure and the like of the trolley in the background technology can be overcome. Therefore, we propose a grate-free composite trolley for high-temperature calcination of mineral materials.
Disclosure of Invention
The utility model aims to provide a grate-free composite trolley for high-temperature calcination of mineral materials, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the grate-free composite trolley for high-temperature calcination of mineral materials comprises a wheel set, a lower trolley body, an upper trolley body and a grate plate, wherein the lower trolley body is supported by the wheel set, the upper trolley body is supported by the lower trolley body, the lower trolley body comprises a lower trolley body side plate and a first refractory lining body fixed on the inner surface of the lower trolley body side plate, and a heat insulation layer is arranged between the first refractory lining body and the lower trolley body side plate;
the upper vehicle body comprises an upper vehicle body side plate and an upper vehicle body end plate, and the grate plate is arranged in a cavity surrounded by the two opposite upper vehicle body side plates and the two opposite upper vehicle body end plates;
the inner face and the top surface of the upper vehicle body side plate are provided with second refractory lining bodies, a heat insulation layer is arranged between the second refractory lining bodies and the upper vehicle body side plate, a heat insulation layer is arranged between the grate plate and the upper vehicle body side plate and between the grate plate and the upper vehicle body end plate, and a heat insulation layer is arranged between the grate plate and the first refractory lining bodies and between the grate plate and the second refractory lining bodies, and the upper vehicle body is connected with the lower vehicle body through a first connecting component.
The first refractory lining body is built by refractory bricks, is connected with the lower vehicle body side plate through a second connecting component penetrating through the lower vehicle body side plate or is embedded into a first groove in the inner face of the lower vehicle body side plate, and is further supported on a first bottom convex edge of the lower vehicle body side plate.
The first refractory lining body is formed by casting or spraying an unshaped refractory material, a first anchoring piece penetrating through the heat insulation layer and extending into the first refractory lining body is arranged on the inner face of the lower vehicle body side plate, a first groove in which the first refractory lining body is embedded is formed in the inner face of the lower vehicle body side plate, or the first anchoring piece and the first groove are formed in the inner face of the lower vehicle body side plate at the same time, and the first refractory lining body is also supported on a first bottom convex edge of the lower vehicle body side plate.
The grate plate is connected with the upper car body side plate through a third connecting component or is embedded into a second groove in the inner face of the upper car body side plate, and the grate plate is further supported on the second bottom convex edge of the upper car body side plate and the top surface of the upper car body end plate.
The grate plate is a refractory plate consisting of an air permeable part and surrounding solid parts, a first air flow channel for air flow to pass through is arranged in the air permeable part, and the first air flow channel is a channel with a circular or polygonal cross section or a combination of circular arcs and rectangles, the size of an upper opening and a lower opening of the channel is the same, or the size of the upper opening of the channel is smaller than that of the lower opening.
The grate plate consists of a refractory material box body and a ventilation body positioned in the refractory material box body, the top of the refractory material box body is provided with a through second air flow channel, the bottom of the refractory material box body is provided with a through third air flow channel, and the ventilation body consists of a plurality of spheres or polyhedrons or fourth air flow channels among the spheres or between the polyhedrons or consists of spheres and polyhedrons and fourth air flow channels among the spheres and the polyhedrons.
The second refractory lining body is built by refractory bricks, is connected with the upper vehicle body side plate through a fourth connecting component penetrating through the upper vehicle body side plate or is embedded into a third groove in the inner face of the upper vehicle body side plate, and is further supported on the grate plate and the top surface of the upper vehicle body side plate.
The second refractory lining body is formed by casting or spraying an unshaped refractory material, a second anchoring piece penetrating through the heat insulation layer and extending into the second refractory lining body is arranged on the inner face of the upper vehicle body side plate, or a third groove embedded into the second refractory lining body is arranged on the inner face of the upper vehicle body side plate, or the second anchoring piece and the third groove are simultaneously arranged on the inner face of the upper vehicle body side plate, and the second refractory lining body is also supported on the grate plate and the top surface of the upper vehicle body side plate.
The heat insulation layer is one of a fireproof fiber board, a fireproof fiber felt and a fireproof fiber cotton or is built by heat insulation bricks.
Compared with the prior art, the utility model has the beneficial effects that: the inner side of the trolley is firmly connected with the trolley body by adopting the refractory lining body and the heat insulation layer, the refractory lining body has the characteristics of high strength, wear resistance, corrosion resistance, low heat conductivity and the like, the heat insulation layer has the characteristics of lower heat conductivity, capability of absorbing thermal expansion and the like, the temperature of the upper trolley body and the lower trolley body can be reduced to be below 200 ℃ by matching the refractory lining body with the heat insulation layer, the refractory lining body can also effectively resist the impact, wear and the corrosion of mineral raw materials and calcined products, the corrosion of process gas and the like, the problems of strength attenuation, deformation, thermal fatigue damage and the like caused by high temperature of the traditional trolley body components are overcome, the service life of the trolley can be obviously prolonged, and the overhaul and maintenance quantity of the trolley components are reduced;
meanwhile, the fire-resistant grate plate made of fire-resistant materials or the grate plate formed by the fire-resistant material box body and the ventilation body in the fire-resistant material box body replaces the metal grate bar of the traditional trolley, and the problems of strength attenuation, deformation, thermal fatigue, failure and the like existing in the condition that the metal grate bar works at high temperature and in cold and hot alternation for a long time are thoroughly solved. Meanwhile, the composite trolley provided by the utility model has the advantages of small heat dissipation loss and reduction of energy consumption of high-temperature calcination of mineral materials.
Drawings
FIG. 1 is a schematic front cross-sectional view of a grate-free composite trolley for high-temperature calcination of mineral materials according to example 1 of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left half cross-sectional view of FIG. 1;
FIG. 4 is a schematic front cross-sectional view of a grate-free composite trolley for high-temperature calcination of mineral materials according to example 2 of the present utility model;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a left half cross-sectional view of FIG. 4;
FIG. 7 is a schematic front cross-sectional view of a grate-free composite trolley for high-temperature calcination of mineral materials according to example 3 of the present utility model;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a left half cross-sectional view of FIG. 7;
FIG. 10 is a schematic view of a grate plate containing spheres;
FIG. 11 is a left side cross-sectional view of FIG. 10;
fig. 12 is an enlarged partial schematic view of a grate plate having a polyhedron.
In the figure: 1. a wheel set; 2. a lower vehicle body; 3. an upper vehicle body; 4. a thermal insulation layer; 5. a grating plate; 6. a third connection assembly; 7. a first connection assembly; 21. a second connection assembly; 22. a lower vehicle body side panel; 23. a first refractory lining; 31. a fourth connection assembly; 32. an upper body side panel; 33. an upper body end plate; 34. a second refractory lining; 51. a ventilation part; 52. a solid part; 53. a refractory material box body; 54. ventilation is carried out; 221. a first bottom ledge; 222. a first groove; 223. a first anchor; 321. a second bottom ledge; 322. a second groove; 323. a third groove; 324. a second anchor; 511. a first airflow passage; 531. a second airflow passage; 532. a third air flow passage; 541. a sphere; 542. a polyhedron; 543. and a fourth airflow passage.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1: see fig. 1-3. The utility model provides a grate-free composite trolley for high-temperature calcination of mineral materials, which comprises a trolley group 1, a lower trolley body 2, an upper trolley body 3, a heat insulation layer 4, a grate plate 5 and a lower trolley body 2, wherein the lower trolley body 2 is supported by the trolley group 1, and the upper trolley body 3 is supported by the lower trolley body 2. The inner surface of the lower side plate 22 is fixed with a first refractory lining 23, a heat insulation layer 4 is arranged between the first refractory lining 23 and the lower side plate 22, a grating plate 5 is arranged in a cavity surrounded by two opposite upper side plates 32 and two opposite upper side plates 33, the heat insulation layer 4 is arranged between the grating plate 5 and the upper side plates 32 and the upper side plates 33 and between the grating plate 5 and the first refractory lining 23 and the second refractory lining 34, a second refractory lining 34 is arranged on the inner surface and the top surface of the upper side plate 32, a heat insulation layer 4 is arranged between the second refractory lining 34 and the upper side plate 32, and the upper side 3 is connected with the lower side plate 2 through a first connecting component 7. The first connecting component 7 is a bolt, a nut and a washer.
The first refractory lining 23 is made of a refractory brick and is connected to the lower body side plate 22 through a second connecting member 21 penetrating the lower body side plate 22, and the first refractory lining 23 is also supported on a first bottom flange 221 of the lower body side plate 22. The second connection member 21 is a bolt, a nut, or a washer, and when a refractory brick is manufactured by laying the first refractory lining 23, the nut or the bolt is embedded in the refractory brick.
The grate plate 5 is connected to the upper body side plate 32 by a third connecting member 6, and the grate plate 5 is further supported on the second bottom ledge 321 of the upper body side plate 32 and on the top surface of the upper body end plate 33. The third connecting component 6 is a bolt, a nut and a gasket, and when the grate plate 5 is manufactured, the nut or the bolt is embedded in the grate plate 5
The grate plate 5 is a fireproof plate composed of an air permeable part 51 and a solid part 52 around, and a first air flow passage 511 for air to pass through is arranged in the air permeable part 51.
The first air flow passage 511 is a tapered passage having a circular cross-sectional shape and an upper opening size smaller than a lower opening size.
The second refractory lining 34 is made of a refractory brick and is connected to the upper body side plate 32 through a fourth connecting member 31 penetrating the upper body side plate 32, and the second refractory lining 34 is also supported on the grate plate 5 and the top surface of the upper body side plate 32. The second connection member 21 is a bolt, a nut, or a washer, and when the refractory brick to be built into the second refractory lining 34 is manufactured, the nut or the bolt is embedded in the refractory brick.
The heat insulation layer 4 is a fireproof fiber board.
Example 2: see fig. 4-6. The present embodiment differs from embodiment 1 in that:
the first refractory lining 23 is formed by casting an unshaped refractory material, and a first groove 222 into which the first refractory lining 23 is embedded is formed in the inner surface of the lower vehicle body side plate 22.
The grate plate 5 is inserted into the second recess 322 in the inner surface of the upper body side plate 32, and the grate plate 5 is supported on the second bottom flange 321 of the upper body side plate 32 and on the top surface of the upper body end plate 33.
The first air flow passage 511 is a polygonal cross-sectional shape and has the same size of the upper and lower openings.
The second refractory lining 34 is formed by casting an unshaped refractory material, a third groove 323 embedded in the second refractory lining 34 is formed on the inner surface of the upper vehicle body side plate 32, and the second refractory lining 34 is also supported on the refractory grate plate 5 and the top surface of the upper vehicle body side plate 32.
The heat insulation layer 4 is made of refractory fiber felt.
Example 3: see fig. 7-9. The present embodiment differs from embodiment 1 in that:
the first refractory lining 23 is formed by spraying an unshaped refractory material, a first anchoring piece 223 penetrating through the heat insulation layer 4 and extending into the first refractory lining 23 is arranged on the inner surface of the lower vehicle body side plate 22, and the first refractory lining 23 is also supported on a first bottom convex edge 221 of the lower vehicle body side plate 22.
The grate plate 5 is inserted into the second recess 322 in the inner surface of the upper body side plate 32, and the grate plate 5 is supported on the second bottom flange 321 of the upper body side plate 32 and on the top surface of the upper body end plate 33.
The first air flow channel 511 is a channel with a circular arc cross section and a rectangular cross section and the same upper and lower spectrum dimensions.
The second refractory lining 34 is formed by spraying an unshaped refractory material, the inner face of the upper vehicle body side plate 32 is provided with a second anchoring piece 324 which penetrates through the heat insulation layer 4 and stretches into the second refractory lining 34, and the second refractory lining 34 is also supported on the grate plate 5 and the top face of the upper vehicle body side plate 32.
The heat insulation layer 4 is made of refractory fiber felt.
In the above embodiment, the grate plate 5 may be selected as follows: the gas-permeable material box 53 consists of a gas-permeable material box 53 and a gas-permeable material 54 positioned in the gas-permeable material box 53, wherein a second gas flow channel 531 is arranged on the top of the gas-permeable material box 53, a third gas flow channel 532 is arranged on the bottom of the gas-permeable material box 53, and the gas-permeable material 54 consists of a plurality of spheres 541 and fourth gas flow channels 543 between the spheres 541, see fig. 10 and 11.
In the above embodiment, the grate plate 5 may be selected to be: the gas-permeable material box 53 consists of a gas-permeable material box 53 and a gas-permeable material 54 positioned in the gas-permeable material box 53, wherein a second gas flow channel 531 is arranged at the top of the gas-permeable material box 53, a third gas flow channel 532 is arranged at the bottom of the gas-permeable material box 53, and the gas-permeable material 54 consists of a plurality of polyhedrons 542 and fourth gas flow channels 543 between the polyhedrons 542, as shown in fig. 12.
The grate-free composite trolley for high-temperature calcination of mineral materials can be used for iron ore sintering, pellet ore calcination, quicklime calcination, refractory product calcination and the like. In practice, steel fibers may be added to the first and second refractory lining bodies 23, 34 and the refractory grate plate 5 to improve the pressure resistance and the fracture resistance of these refractory materials.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a there is not compound platform truck of grate for mineral material high temperature calcination, includes wheel group (1), lower automobile body (2), goes up automobile body (3) and grate board (5), and lower automobile body (2) are supported by wheel group (1), go up automobile body (3) and are supported by lower automobile body (2), its characterized in that: the lower vehicle body (2) comprises a lower vehicle body side plate (22) and a first refractory lining (23) fixed on the inner surface of the lower vehicle body side plate (22), and a heat insulation layer (4) is arranged between the first refractory lining (23) and the lower vehicle body side plate (22);
the upper vehicle body (3) comprises an upper vehicle body side plate (32) and an upper vehicle body end plate (33), and the grate plate (5) is arranged in a cavity surrounded by the two opposite upper vehicle body side plates (32) and the two opposite upper vehicle body end plates (33);
the inner face and the top surface of the upper vehicle body side plate (32) are provided with a second refractory lining body (34), a heat insulation layer (4) is arranged between the second refractory lining body (34) and the upper vehicle body side plate (32), a heat insulation layer (4) is arranged between the grate plate (5) and the upper vehicle body side plate (32) and between the grate plate (5) and the upper vehicle body end plate (33), and a heat insulation layer (4) is arranged between the grate plate (5) and the first refractory lining body (23) and between the second refractory lining body (34), and the upper vehicle body (3) is connected with the lower vehicle body (2) through a first connecting component (7).
2. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the first refractory lining body (23) is built by refractory bricks, the first refractory lining body (23) is connected with the lower vehicle body side plate (22) through a second connecting component (21) penetrating through the lower vehicle body side plate (22) or is embedded into a first groove (222) in the inner surface of the lower vehicle body side plate (22), and the first refractory lining body (23) is further supported on a first bottom convex edge (221) of the lower vehicle body side plate (22).
3. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the first refractory lining body (23) is formed by casting or spraying an unshaped refractory material, a first anchoring piece (223) penetrating through the heat insulation layer (4) and extending into the first refractory lining body (23) is arranged on the inner face of the lower vehicle body side plate (22), a first groove (222) embedded by the first refractory lining body (23) is formed in the inner face of the lower vehicle body side plate (22), the first anchoring piece (223) and the first groove (222) are formed in the inner face of the lower vehicle body side plate (22), and the first refractory lining body (23) is also supported on a first bottom convex edge (221) of the lower vehicle body side plate (22).
4. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the grate plate (5) is connected with the upper vehicle body side plate (32) through a third connecting component (6) or is embedded into a second groove (322) in the inner face of the upper vehicle body side plate (32), and the grate plate (5) is further supported on a second bottom convex edge (321) of the upper vehicle body side plate (32) and the top surface of the upper vehicle body end plate (33).
5. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the grate plate (5) is a fireproof plate consisting of an air permeable part (51) and surrounding solid parts (52), a first air flow channel (511) for air flow to pass through is arranged in the air permeable part (51), and the first air flow channel (511) is a channel with a circular or polygonal cross section or a combination of circular arcs and rectangles, and the size of an upper opening and a lower opening of the channel is the same or the size of the upper opening is smaller than that of the lower opening.
6. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the grate plate (5) is composed of a fire-resistant material box body (53) and a ventilation gas (54) positioned in the fire-resistant material box body (53), a second through air flow channel (531) is arranged at the top of the fire-resistant material box body (53), a third through air flow channel (532) is arranged at the bottom of the fire-resistant material box body (53), and the ventilation body (54) is composed of a plurality of spheres (541) or a plurality of polyhedrons (542) and fourth air flow channels (543) between the spheres (541) or between the polyhedrons (542) or simultaneously is composed of the spheres (541) and the polyhedrons (542) and the fourth air flow channels (543) between the spheres (541) and the polyhedrons (542).
7. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the second refractory lining body (34) is built by refractory bricks, the second refractory lining body (34) is connected with the upper vehicle body side plate (32) through a fourth connecting component (31) penetrating through the upper vehicle body side plate (32) or is embedded into a third groove (323) in the inner surface of the upper vehicle body side plate (32), and the second refractory lining body (34) is further supported on the grate plate (5) and the top surface of the upper vehicle body side plate (32).
8. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the second refractory lining body (34) is formed by casting or spraying an unshaped refractory material, a second anchoring piece (324) penetrating through the heat insulation layer (4) and extending into the second refractory lining body (34) is arranged on the inner face of the upper vehicle body side plate (32), a third groove (323) embedded into the second refractory lining body (34) is formed in the inner face of the upper vehicle body side plate (32), the second anchoring piece (324) and the third groove (323) are formed in the inner face of the upper vehicle body side plate (32), and the second refractory lining body (34) is also supported on the grate plate (5) and the top face of the upper vehicle body side plate (32).
9. A grate-free composite trolley for high temperature calcination of mineral materials according to claim 1, wherein: the heat insulation layer (4) is one of a fireproof fiber board, a fireproof fiber felt and fireproof fiber cotton or is built by heat insulation bricks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222312177.8U CN219223311U (en) | 2022-08-30 | 2022-08-30 | Grate-free composite trolley for high-temperature calcination of mineral materials |
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