CN212299938U

CN212299938U - Novel energy-saving refractory brick for lime kiln and energy-saving lining structure of lime kiln

Info

Publication number: CN212299938U
Application number: CN202022203189.8U
Authority: CN
Inventors: 范圣良
Original assignee: Zhejiang Ruitai Refractory Technology Co ltd
Current assignee: Zhejiang Ruitai Refractory Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-05
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a novel energy-conserving resistant firebrick of lime kiln and energy-conserving type lining structure of lime kiln, including the lime kiln body, the inner rigid coupling of haydite heat preservation pouring bed of material has the aluminium silicate fiberboard. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure of the lime kiln can reduce the temperature of the outer surface of the kiln body by 10-20 ℃, can obviously reduce the coal consumption and the gas consumption of a user by more than 10kg per ton of lime produced, solve the problem of backward movement of the refractory brick and the crack between the brick and the brick, stabilize the phenomenon of air cross, simultaneously enable the temperature in the kiln and the temperature on the sides to be uniform, the maturity of ash to be consistent, shorten the calcining time of the lime, accelerate the discharging speed, greatly improve the yield of the kiln, further reduce the crack between the brick and the brick, avoid the air cross to the upper part of a cold cutting zone at the bottom, reduce the load operation of a fan, further ensure that the air quantity in the whole kiln is sufficient, shorten the ash firing time, promote the quality of the ash and promote the ventilation effect in the whole kiln.

Description

Novel energy-saving refractory brick for lime kiln and energy-saving lining structure of lime kiln

Technical Field

The utility model relates to a novel resistant firebrick of limekiln and energy-saving lining structure technical field of limekiln specifically is a novel energy-conserving resistant firebrick of limekiln and energy-saving lining structure of limekiln.

Background

The lime kiln is used for calcining limestone to generate quick lime, and has the technological process that the limestone and fuel are preheated in the lime kiln (if gas fuel is fed in through pipeline and burner) and then decomposed at 850 deg.C, and after the lime is calcined at 1200 deg.C, the lime and fuel are cooled and discharged out of the kiln, so that the production of quick lime product is completed.

In the production and operation process of the existing lime kiln, because of cracks between bricks of a working layer and the bottom cold cutting zone, the air is mixed to the upper part, the load operation of a fan is increased, so that the air quantity in the whole kiln is insufficient, the burning time of ash is prolonged, the quality of the ash is reduced, the increase of ash powder can be generated in the sintering process, the ventilation effect in the whole kiln is blocked, and a large amount of energy consumption is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel energy-conserving resistant firebrick of lime kiln and energy-saving lining structure of lime kiln, in order to solve and to propose current lime kiln in the above-mentioned background art at the production operation in-process, because the crack between working layer brick and the brick, the cold cutting area in bottom cluster wind to upper portion, the fan load operation has been increased, thereby make the air volume not enough in the whole kiln, the firing time that has leaded to the ash lengthens, the quality of ash has been reduced, can produce the ash powder increase in sintering process, the ventilation effect in whole kiln has been hindered, it causes the problem of energy bulk consumption.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel energy-conserving resistant firebrick of lime kiln and energy-conserving type lining structure of lime kiln, includes the lime kiln body, the inner wall rigid coupling of the lime kiln body has the cotton layer of ceramic fibre, the inner rigid coupling on the cotton layer of ceramic fibre has porous lining brick layer, the porous insulating brick layer in inner on porous lining brick layer, the inner rigid coupling on porous insulating brick layer has haydite heat preservation pouring bed of material, the inner rigid coupling on haydite heat preservation pouring bed of material has aluminium silicate fiberboard.

Preferably, the lime kiln body is formed by piling 1# and 2# bricks.

Preferably, the ceramic fiber cotton layer is matched with the contact surface of the porous lining brick layer.

Preferably, the porous lining brick layer is SK-50 porous 7# lining brick, the number of internal holes is five, and the internal holes are symmetrically distributed.

Preferably, the porous heat-insulating brick layer is KZ-8# porous heat-insulating brick.

Preferably, the ceramsite inside the ceramsite heat-insulation castable layer is irregular gravel.

Compared with the prior art, the beneficial effects of the utility model are that: the novel energy-saving refractory brick of the lime kiln and the energy-saving lining structure of the lime kiln reduce the external surface temperature of the kiln body by 10-20 ℃ through the matching of the lime kiln body, the ceramic fiber cotton layer, the porous lining brick layer, the porous insulating brick layer, the ceramsite insulating pouring material layer and the aluminum silicate fiber board when the device is used, ensure that the coal consumption and the gas consumption of a user can be reduced by more than 10kg when one ton of lime is produced obviously, solve the problem of backward movement of the refractory brick and the crack between the bricks, stabilize the phenomenon of air cross, lead the temperature in the kiln and the temperature at the edges to be uniform, lead the maturity of the ash to be consistent, shorten the calcination time of the lime, accelerate the unloading speed, greatly improve the yield of the lime kiln, further reduce the crack between the bricks, avoid the air cross of a cold cutting belt at the bottom to the upper part, reduce the load operation of a fan, and further ensure that the air quantity in the whole kiln is sufficient, the sintering time of the ash is shortened, the quality of the ash is improved, the generation of ash powder is reduced in the sintering process, and the ventilation effect in the whole kiln is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the cellular lining brick layer of FIG. 1;

FIG. 3 is a side cross-sectional structural view of the cellular lining layer of FIG. 2;

fig. 4 is a bottom cross-sectional structural view of the cellular lining brick layer of fig. 2.

In the figure: 1. the ceramic-ceramic composite material comprises a lime kiln body, 2 a ceramic fiber cotton layer, 3 a porous lining brick layer, 4 a porous heat-insulating brick layer, 5 a ceramsite heat-insulating pouring material layer, 6 and an aluminum silicate fiberboard.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a lime kiln new energy-saving firebrick and energy-saving lining structure of the lime kiln, including the kiln body 1 of the lime kiln, the kiln body 1 of the lime kiln is piled up by 1#, 2# bricks, the design can guarantee the whole intensity of the kiln body 1 of the lime kiln like this, the inner wall of the kiln body 1 of the lime kiln is fixedly connected with the cotton layer 2 of ceramic fiber, the ceramic fiber is a high-efficient heat insulating material, have light in weight, the intensity is high, antioxidation, thermal conductivity is low, the flexibility is good, the corrosion resistance, the heat capacity is small and the characteristic such as being acoustic insulation, etc., the inner end of the cotton layer 2 of ceramic fiber is fixedly connected with the porous lining brick layer 3, the porous lining brick layer 3 chooses SK-50 porous 7# lining brick, its internal hole quantity is five, and present the symmetrical distribution, the design can reduce the temperature of the outer wall of the kiln effectively like this, reduce the energy consumption, save the cost, the cotton layer 2 of ceramic fiber is engaged with the contact surface, the porous insulating brick layer 4 is a KZ-8# porous insulating brick, wherein hollow floating beads are used as main raw materials, bonding powder, reinforcing agent and additive are added to develop high-strength micro-heat-conducting floating bead lining brick and insulating products, the insulating brick layer has good heat insulation performance, a ceramsite heat-insulating pouring material layer 5 is fixedly connected to the inner end of the porous insulating brick layer, the heat-insulating pouring material layer is a granular and powdery material prepared by adding a certain amount of bonding agent into refractory materials, has high fluidity, an unshaped refractory material formed by pouring can be directly poured into a lining body for use, or can be made into a precast block for use by a pouring or compaction method, the ceramsite is light in weight, slightly high in density and good in chemical and thermal stability, is suitable for being matched with pouring materials to form a heat-insulating structure, and the ceramsite in the ceramsite heat-insulating pouring material layer 5 is irregular in the shape of broken stone, so that the distribution uniformity can be, and further ensuring the heat preservation effect, wherein the inner end of the ceramsite heat preservation pouring material layer 5 is fixedly connected with an aluminum silicate fiber board 6, and the aluminum silicate fiber board 6 is processed by adopting a wet vacuum forming process and is suitable for the high-temperature field with the requirement on the rigidity strength of the product.

In the embodiment, when the novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln are used, the ceramic fiber cotton layer 2 is laid on the inner wall of the lime kiln body 1, so that the inner wall of the lime kiln body 1 has the characteristics of high strength, oxidation resistance, low thermal conductivity, good flexibility, corrosion resistance, small heat capacity, sound insulation and the like, the porous lining brick layer 3 is piled on the inner side of the ceramic fiber cotton layer 2, the porous heat-insulation brick layer 4 is piled on the inner side of the porous lining brick layer 3, the heat insulation performance of the lime kiln body 1 is greatly improved, heat is kept for a longer time, the ceramsite heat-insulation pouring material layer 5 is laid on the inner side of the porous heat-insulation brick layer 4, the fire resistance of the lime kiln body 1 is improved, the aluminum silicate fiber plate 6 is fixed on the inner side of the ceramsite heat-insulation pouring material layer 5, the requirement on the rigid strength inside the lime kiln body 1 is ensured, and cracks between, avoid the cold cutting zone in bottom to cluster wind to upper portion, reduce fan load operation to make the air yield sufficient in the whole kiln, make the burnt till time of ash shorten, promoted the quality of ash, reduce the ash production in sintering process, promoted the ventilation effect in the whole kiln.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel energy-conserving resistant firebrick of lime kiln and energy-saving lining structure of lime kiln, includes the lime kiln body (1), its characterized in that: the lime kiln comprises a lime kiln body (1), and is characterized in that a ceramic fiber cotton layer (2) is fixedly connected to the inner wall of the lime kiln body (1), a porous lining brick layer (3) is fixedly connected to the inner end of the ceramic fiber cotton layer (2), a porous heat-insulating brick layer (4) is arranged at the inner end of the porous lining brick layer (3), a ceramsite heat-insulating pouring material layer (5) is fixedly connected to the inner end of the porous heat-insulating brick layer, and an aluminum silicate fiberboard (6) is fixedly connected to the inner end of the ceramsite heat-insulating pouring material layer (5.

2. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln as claimed in claim 1 are characterized in that: the lime kiln body (1) is formed by piling 1# and 2# bricks.

3. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln as claimed in claim 1 are characterized in that: the ceramic fiber cotton layer (2) is matched with the contact surface of the porous lining brick layer (3).

4. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln as claimed in claim 1 are characterized in that: the porous lining brick layer (3) is formed by SK-50 porous 7# lining bricks, the number of internal holes is five, and the internal holes are symmetrically distributed.

5. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln as claimed in claim 1 are characterized in that: the porous heat-insulating brick layer (4) is made of KZ-8# porous heat-insulating bricks.

6. The novel energy-saving refractory brick for the lime kiln and the energy-saving lining structure for the lime kiln as claimed in claim 1 are characterized in that: the ceramsite inside the ceramsite heat-insulation castable layer (5) is in an irregular gravel shape.