High-temperature-resistant kiln car for firing concrete bricks

Abstract

The utility model provides a high-temperature-resistant kiln car for firing concrete bricks. The high-temperature-resistant kiln car comprises a car body, a refractory lining and a fixing lock catch, the refractory lining is arranged at the top of the vehicle body and comprises lining brick layers and lining plate layers, the heat resistance is improved by adopting a mode of alternately stacking the multiple lining brick layers and the lining plate layers, the lining brick layers adopt modular split type assembly structures, the assembly efficiency is improved, and brick joints are filled with high-temperature elastic fiber pads; lining plate layers are inserted among the multiple lining brick layers, and the refractory lining is locked and fixed by fixing lock catches; the lining brick module is formed by splicing the main bricks and the filling bricks, the weight of the lining brick layer is reduced while the high temperature resistance is guaranteed, the heat resistance of the kiln car is improved, the burden of the car body of the kiln car is reduced, and the service life of the kiln car is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to utilize industrial waste preparation concrete brick, especially, relate to a kind of high-temperature resistant kiln car for firing concrete brick. BACKGROUND

[0002] Kiln car is the equipment of carrying brick blank to carry out baking operation in tunnel kiln, and it is the most main accessory equipment of tunnel kiln.In processing stainless steel pickling sludge and other hazardous waste, after recycling nickel, copper, zinc, iron and other metal element resources by multiple rounds of processes, the remaining tailings can be made into concrete brick for final utilization, the concrete brick of tailings and yellow sand and other raw materials after mixing and pressing is placed on kiln car, and is sent into tunnel kiln to be fired into concrete brick, and kiln car is essential device in this process.Kiln car has higher working temperature, and is subjected to repeated temperature changes, so it needs to have enough strength and heat resistance.In order to enhance the heat resistance of kiln car and prolong the service life of kiln car, refractory lining is usually installed on kiln car, and refractory lining is generally laid by refractory brick, which can protect the metal structure integrity of kiln car, avoid high-temperature deformation or damage, reduce the failure and shutdown caused by temperature fluctuation, and improve overall production efficiency and transportation stability.However, the strength of refractory lining simply laid by refractory brick is low, and it is easy to be damaged after multiple uses, so the high-temperature resistance of kiln car is easily affected and decreased, thereby affecting its service life, so it is necessary to improve the refractory lining of kiln car, thereby improving the high-temperature resistance of kiln car. SUMMARY

[0003] The utility model aims at improving the refractory lining structure of kiln car, better protecting the overall frame of kiln car, improving the high-temperature resistance of kiln car, and prolonging the service life of kiln car, and proposes a kind of high-temperature resistant kiln car for firing concrete brick.

[0004] The utility model adopts the following technical solutions:

[0005] The application discloses a high-temperature-resistant kiln car for firing concrete bricks, which comprises a car body, a refractory lining and a fixed lock catch; the refractory lining is arranged on the top of the car body and comprises a lining brick layer and a lining plate layer; the lining brick layer is combined by a plurality of lining brick modules; the lining brick module comprises a main brick and a filling brick; the main brick is in an I-shaped structure with equal width from top to bottom; two installation grooves are formed on the left and right sides of the middle part of the main brick; the filling brick is combined and installed in the installation groove and fills the installation groove completely; high-temperature elastic fiber pads are filled in the brick joints between the filling brick and the filling brick, between the filling brick and the main brick and between the main bricks; the lining brick layer comprises at least two layers arranged in a top-down manner; the lining plate layer is arranged between the two adjacent lining brick layers; the fixed lock catch is arranged at the edge of the refractory lining and fixedly connected to the car body; the fixed lock catch fixes and locks the lining brick layer and the lining plate layer of the refractory lining and fixes and locks the refractory lining and the car body.

[0006] In a possible implementation, the installation groove on the two sides of the middle part of the main brick is in a rectangular horizontal section, and the horizontal section of the filling brick is in a right-angled trapezoidal shape; the two filling bricks are combined into a cuboid by the diagonal surfaces of the two filling bricks and matched with the shape and size of the installation groove.

[0007] In a possible implementation, the brick joint between the filling brick and the filling brick, between the filling brick and the main brick and between the main bricks is 0.5-1 mm.

[0008] In a possible implementation, the filling brick is made of light-weight silicon carbide material.

[0009] In a possible implementation, the lining plate layer comprises a ceramic fiber blanket, a nano aerogel plate and a stainless steel corrugated plate arranged in a top-down manner.

[0010] In a possible implementation, the thickness of the ceramic fiber blanket is 8-10 mm, the thickness of the nano aerogel plate is 3-5 mm, and the thickness of the stainless steel corrugated plate is 0.6-1 mm.

[0011] In a possible implementation, the fixed lock catch comprises a fixed lock column and a lock catch; the fixed lock column is fixedly connected to the top of the car body and located at the edge of the refractory lining; and the lock catch is inserted into the refractory lining and locks and fixes the refractory lining.

[0012] In a possible implementation, a plurality of lock catches are arranged on the fixed lock column and correspond to the lining brick layer one by one.

[0013] In a possible implementation, the number of the fixed lock catches is multiple and symmetrically distributed on the periphery of the refractory lining.

[0014] Compared with the prior art, the utility model discloses the beneficial effects are: improvement refractory lining structure sets up multilayer lining brick layer and improves high temperature resistance, and lining brick layer is the modular combination design, and easy to install and build and is suitable for the kiln car of multiple models and is reconstructed, and every lining brick module is also the split type design, including main brick and filling brick, reduces the length of straight seam, and the high temperature elastic fiber pad is filled between the brick joint, can reserve the lining brick thermal expansion space, avoids the accumulation of thermal stress, improves lining brick layer heat resistance, in addition, sets up lining board layer as the interlayer heat shield between the two lining brick layers of adjacent, further improves the heat resistance of the car body, reduces the damage of high temperature to the car body, prolongs the service life of kiln car. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the specific embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Fig. 1 It is a kind of high-temperature-resistant kiln car for firing concrete brick overall structure simplified schematic diagram;

[0017] Fig. 2 It is the structure schematic diagram of lining brick layer;

[0018] Fig. 3 It is the structure schematic diagram of lining brick module.

[0019] Wherein, car body 1, refractory lining 2, fixed lock buckle 3;Lining brick layer 21, lining board layer 22, lining brick module 211, main brick 2111, filling brick 2112, brick joint 212;Ceramic fiber pad 221, nano aerogel plate 222, stainless steel corrugated plate 223,;Fixed lock column 31, lock buckle 32. DETAILED DESCRIPTION

[0020] In order to further understand the purpose, structure, features and functions of the utility model, detailed description is as follows in conjunction with examples.

[0021] In the description of the utility model, it needs to be explained that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0022] Please refer toFigs. 1 to 3 The application discloses a high-temperature-resistant kiln car for firing concrete bricks, which comprises a car body 1, a refractory lining 2 and a fixed lock buckle 3; the refractory lining 2 is arranged on the top of the car body 1, and the refractory lining 2 comprises a lining brick layer 21 and a lining plate layer 22; the lining brick layer 21 is connected and combined by a plurality of lining brick modules 211; the lining brick module 211 comprises a main brick 2111 and a filling brick 2112; the main brick 2111 is in an I-shaped structure with equal width from top to bottom; two installation grooves are formed on the left and right sides of the middle part of the main brick 2111; the filling brick 2112 is combined and installed in the installation grooves and fills the installation grooves completely; the brick joints 212 between the filling brick 2112 and the filling brick 2112, between the filling brick 2112 and the main brick 2111 and between the main brick 2111 and the main brick 2111 are filled with high-temperature elastic fiber pads; the lining brick layer 21 comprises at least two layers and is arranged in a top-down mode; the lining plate layer 22 is arranged between the two adjacent lining brick layers 21; the fixed lock buckle 3 is arranged on the edge of the refractory lining 2 and fixedly connected to the car body 1; the fixed lock buckle 3 fixes and locks the lining brick layer 21 and the lining plate layer 22 of the refractory lining 2 and fixes and locks the refractory lining 2 and the car body 1.

[0023] The car body 1 can be any car body 1 in the prior art, and is not limited in material, shape and structure; preferably, the top of the car body 1 is a flat bearing surface, which can better install the refractory lining 2.

[0024] The refractory lining 2 is arranged in a multi-layer structure, the lining brick layer 21 is at least two layers, effectively protects the car body 1 and improves the refractory property of the car body 1; in addition, the lining brick layer 21 is designed in a modular mode and connected and assembled by a plurality of lining brick modules 211, thereby improving the assembly and maintenance efficiency; the lining brick module 211 is divided into the main brick 2111 and the filling brick 2112; the main brick 2111 supports the structure of the lining brick module 211; the filling brick 2112 reduces the weight of the lining brick module 211, so that the refractory lining 2 reduces the weight while ensuring the high-temperature-resistant property, and better protects the kiln car. The brick joints 212 of the lining brick layer 21 are filled with high-temperature elastic fiber pads, so that the lining brick module 211 can expand and contract when the filling brick 2112 expands and contracts, thereby avoiding stress accumulation. The lining plate layer 22 is further arranged between the lining brick layers 21, and the lining plate layer 22 can play a heat insulation role and block the high-temperature airflow from penetrating through the refractory lining 2, thereby protecting the car body 1 from high-temperature damage and prolonging the service life of the kiln car.

[0025] In some embodiments, the installation grooves in the middle part of the main brick 2111 are rectangular in horizontal section, the filling brick 2112 is in a right-angled trapezoidal shape in horizontal section, and the two filling bricks 2112 are combined into a cuboid by the two inclined surfaces as diagonal surfaces and matched with the shape and size of the installation grooves. Therefore, the brick joint 212 between the two filling bricks 2112 in the installation grooves is in an oblique line, and when a plurality of lining brick modules 211 are connected, the brick joints 212 are connected to form a wave shape, thereby reducing the length of the straight-line gap, increasing the heat dissipation area and improving the heat-resistant property.

[0026] In some embodiments, the brick joints 212 between the filler bricks 2112 and the filler bricks 2112, the filler bricks 2112 and the main bricks 2111, and the main bricks 2111 and the main bricks 2111 are 0.5-1 mm, leaving a directional expansion gap for the refractory bricks to prevent damage caused by insufficient space for thermal expansion of the refractory bricks.

[0027] In some embodiments, the filler bricks 2112 can be made of lightweight silicon carbide material, and the main bricks 2111 can be made of corundum-mullite composite material, high alumina material, silica material, clay material, etc. The main bricks 2111 are relatively heavy, have better support performance, and have better high-temperature resistance, while the filler bricks 2112 are lighter, which can ensure the high-temperature resistance of the lining brick layer 21 while reducing its weight, thereby reducing the burden on the car body 1 and prolonging the service life of the car body 1.

[0028] In some embodiments, the lining plate layer 22 includes ceramic fiber blanket 221, nano aerogel plate 222, and stainless steel corrugated plate 223 arranged in a top-down stacked manner. Preferably, the thickness of the ceramic fiber blanket 221 is 8-10 mm, the thickness of the nano aerogel plate 222 is 3-5 mm, and the thickness of the stainless steel corrugated plate 223 is 0.6-1 mm. The above structure forms a composite heat-sealing layer between the multiple lining brick layers 21, which can block the path of high-temperature gas flow through the refractory layer, thereby achieving good heat insulation effect, effectively reducing the temperature of the car body 1, and prolonging the service life of the kiln car.

[0029] The fixed lock 3 is used to lock and fix the refractory lining 2, which on the one hand locks and fixes the layers of the refractory lining 2, and on the other hand locks and fixes the refractory lining 2 to the car body 1, thereby avoiding the flow of hot gas between the layers of the refractory lining 2 and between the refractory lining 2 and the car body 1, improving the heat insulation and heat resistance performance, and ensuring the stability of the brick stack on the kiln car.

[0030] In some embodiments, the fixed lock 3 includes a fixed lock column 31 and a lock 32. The fixed lock column 31 is fixedly connected to the top of the car body 1 and located at the edge of the refractory lining 2, and the lock 32 is inserted into the refractory lining 2 and locks and fixes the refractory lining 2. The fixed lock column 31 can be inverted L-shaped, with the vertical section close to the edge of the refractory lining 2 and the horizontal section close to the top of the refractory lining 2. The lock 32 is installed on the horizontal section at the top end of the fixed lock column 31 and can be a compression bolt that compresses and fixes the refractory lining 2 to the car body 1 from the top. The fixed lock column 31 can also be I-shaped and close to the edge of the refractory lining 2. The lock 32 is installed on the fixed lock column 31 and locks the refractory lining 2 from the side. In this embodiment, preferably, multiple locks 32 are provided on the fixed lock column 31, and the locks 32 correspond to the lining brick layers 21 one by one to lock and fix, which can achieve better locking and fixing effect.

[0031] In some embodiments, the number of fixed locks 3 is multiple and symmetrically distributed around the refractory lining 2, which can achieve better locking and fixing effect.

[0032] In summary, the utility model discloses a kind of high-temperature-resistant kiln car for firing concrete brick, to refractory lining structure is improved, using the mode of multilayer lining brick layer+inserting and stacking of lining plate layer, improve heat resistance, lining brick layer uses modular split type assembly structure, improve assembly efficiency, lining brick module is formed by main brick and filler brick splicing, ensure high-temperature-resistant performance while reduce lining brick layer weight, while improving kiln car heat resistance, reduce kiln car body burden, prolong the service life of kiln car.

[0033] The utility model has been described by the above related embodiment, however the above embodiment is only the example of implementation of the utility model. It must be pointed out that the disclosed embodiment does not limit the scope of the utility model. On the contrary, changes and refinements made without departing from the spirit and scope of the utility model are within the scope of the patent protection of the utility model.

Claims

1. A high temperature resistant kiln car for firing concrete bricks, characterized by: The application relates to a vehicle body, which comprises a vehicle body, a refractory lining and a fixed lock catch; the refractory lining is arranged on the top of the vehicle body and comprises a lining brick layer and a lining plate layer; the lining brick layer is combined by a plurality of lining brick modules; the lining brick module comprises a main brick and a filling brick; the main brick is an I-shaped structure with equal width; two installation grooves are formed on the left and right sides of the middle part of the main brick; the filling brick is combined and installed in the installation groove and fills the installation groove completely; high-temperature elastic fiber pads are filled in the brick joints between the filling brick and the filling brick, between the filling brick and the main brick and between the main bricks; the lining brick layer comprises at least two layers arranged in the up-down direction; the lining plate layer is arranged between the two adjacent lining brick layers; the fixed lock catch is arranged on the edge of the refractory lining and fixedly connected to the vehicle body; the fixed lock catch fixes and locks the lining brick layer and the lining plate layer of the refractory lining and fixes and locks the refractory lining and the vehicle body.

2. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 1 wherein: The installation groove on the two sides of the middle part of the main brick is rectangular in horizontal section; the horizontal section of the filling brick is a right-angled trapezoid; the two filling bricks are combined into a cuboid through the diagonal surfaces and matched with the shape and size of the installation groove.

3. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 1 wherein: The brick joint between the filling brick and the filling brick, between the filling brick and the main brick and between the main bricks is 0.5-1 mm.

4. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 1 wherein: The filling brick is made of light-weight silicon carbide material.

5. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 1 wherein: The lining plate layer comprises a ceramic fiber blanket, a nano aerogel plate and a stainless steel corrugated plate arranged in the up-down direction.

6. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 5 wherein: The thickness of the ceramic fiber blanket is 8-10 mm; the thickness of the nano aerogel plate is 3-5 mm; and the thickness of the stainless steel corrugated plate is 0.6-1 mm.

7. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 1 wherein: The fixed lock catch comprises a fixed lock column and a lock catch; the fixed lock column is fixedly connected to the top of the vehicle body and located on the edge of the refractory lining; and the lock catch is inserted into the refractory lining and locks and fixes the refractory lining.

8. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 7 wherein: A plurality of lock catches are arranged on the fixed lock column and correspond to the lining brick layer one by one.

9. The high temperature resistant kiln car for firing concrete bricks as claimed in claim 7 wherein: The number of the fixed lock catches is multiple and symmetrically distributed on the periphery of the refractory lining.

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