CN211977551U - Novel spinel brick for cement rotary kiln - Google Patents

Abstract

The utility model discloses a novel spinel brick for cement rotary kiln, including resistant firebrick working layer of spinel and the resistant firebrick transition layer of spinel, the left side of resistant firebrick working layer of spinel is settled there is resistant firebrick of spinel to hang down the heat-conducting layer, and the left side inner wall connection that the resistant firebrick of spinel hangs down the heat-conducting layer has insulating layer refractory fiber felt. This novel spinel brick for cement rotary kiln is provided with that the composite construction is whole, and the composite construction is whole to be able to bear or endure firebrick working layer by spinel and to add the low heat-conducting layer of spinel firebrick and add insulating layer refractory fiber felt and form, by the working layer, low heat-conducting layer and insulating layer triplex, the left side of spinel firebrick working layer is the wave shape for spinel firebrick working layer and spinel firebrick low heat-conducting layer are behind the briquetting, can be fine with the fusion of spinel firebrick low heat-conducting layer right side.

Description

Novel spinel brick for cement rotary kiln

Technical Field

The utility model relates to a smelt the refractory material technical field with high temperature kiln, the spinel lining brick that especially indicates the cement rotary kiln and the lining structure of the whole kiln built by laying bricks or stones from this type brick specifically is a novel spinel brick for cement rotary kiln.

Background

The spinel raw material has the characteristics of high temperature resistance, small thermal expansion coefficient, good thermal stability and strong slag resistance, is a high-quality refractory raw material, is successfully used for steel smelting, cement rotary circuits and glass industrial kilns, and the stone bricks made of spinel are applied to various occasions.

Novel spinel brick for cement rotary kiln in the market in use, general spinel brick for cement rotary kiln ubiquitous coefficient of heat conductivity is big, the higher problem of barrel temperature in the use, production operation inconvenient etc. novel spinel brick for cement rotary kiln in the market simultaneously implements relevant mechanical equipment life-span and shortens, calorific loss is great, consequently the heat conductivility problem of cement kiln lining brick of need solving urgently.

Therefore, a novel spinel brick for a cement rotary kiln is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertical biax numerically control grinder to solve the general spinel brick for cement rotary kiln that proposes among the above-mentioned background art ubiquitous coefficient of heat conductivity big, the higher problem of barrel temperature in the use, production operation inconvenience etc. novel spinel brick for cement rotary kiln on the market simultaneously, implement relevant mechanical equipment life-span and shorten, the great problem of calorific loss.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel spinel brick for cement rotary kiln, includes that the resistant firebrick transition layer is able to bear or endure to spinel brick working layer and spinel, the left side of the resistant firebrick working layer of spinel is settled there is resistant firebrick low heat-conducting layer of spinel, and the left side inner wall connection that the resistant firebrick of spinel was able to bear or endure to have insulating layer refractory fiber felt, the left side middle part that the resistant firebrick of spinel was able to bear or endure to hang the low heat-conducting layer is provided with the interior chamfer of through-.

As a further proposal of the utility model, the left side of the spinel refractory brick working layer is in a wave shape, and the spinel refractory brick working layer and the spinel refractory brick low heat-conducting layer are of an integrated structure for welding.

As a further scheme of the utility model, the outer wall size of insulating layer refractory fiber felt coincide with the inner wall size of through-hole limit arris chamfer, and be swing joint between insulating layer refractory fiber felt and the through-hole limit arris chamfer.

As a further proposal of the utility model, the appearance of the inner chamfer of the through hole is of a trapezoidal structure.

As a further scheme of the utility model, chamfer below outer wall is laminated mutually in through-hole limit arris chamfer and the through-hole, and for welding an organic whole structure in the through-hole between chamfer and the through-hole limit arris chamfer.

As a further proposal of the utility model, the inner wall area of the spinel fireproof brick transition layer is consistent with the outer wall area of the spinel fireproof brick working layer, and the inner wall of the spinel fireproof brick transition layer is laminated with the outer wall of the spinel fireproof brick working layer.

Compared with the prior art, the beneficial effects of the utility model are that:

the novel spinel brick for the cement rotary kiln is provided with a composite structure whole, the composite structure whole is formed by a spinel refractory brick working layer, a spinel refractory brick low heat conduction layer and a heat insulation layer refractory fibrofelt, the working layer, the low heat conduction layer and the heat insulation layer form a three part, the left side of the spinel refractory brick working layer is in a wave shape, the spinel refractory brick working layer and the spinel refractory brick low heat conduction layer are pressed and formed, the spinel refractory brick working layer can be well fused with the right side of the spinel refractory brick low heat conduction layer, a welding integrated structure is formed between the spinel refractory brick working layer and the spinel refractory brick low heat conduction layer, the spinel refractory brick working layer and the spinel refractory brick low heat conduction layer are pressed and formed and then fired to be fixed, the spinel refractory brick working layer and the spinel refractory brick low;

the device is also provided with a through hole edge chamfer, the size of the through hole edge chamfer is 5Rmm, meanwhile, the size of the chamfer in the through hole is R < 5mm, the arrangement of the through hole edge chamfer and the chamfer in the through hole does not influence the product performance, is beneficial to forming and demoulding to produce bricks, the device has higher practicability, the refractory brick body is vertically pressed and molded by a friction press or a hydraulic press, two pugs with different heat conductivities are separately loaded into a grinding tool by a wavy clapboard during molding, the clapboard is taken out after compaction, the blank is pressed and dried and sintered to obtain the sintered spinel refractory brick body, the molded brick body forms a transition layer of high heat conductivity and ground heat conductivity, meanwhile, the stress caused by different expansion of materials in the firing process can be buffered, so that the spinel refractory brick with high and low heat conductivity is sintered into a whole with consistent combination after firing, and cracks at the contact position after firing are avoided.

The device is provided with the refractory fiber felt of insulating layer, be swing joint between the refractory fiber felt of insulating layer and the through-hole arris chamfer, the refractory fiber felt of insulating layer is direct to be filled in the inner wall of through-hole arris chamfer after the shaping is fired to the stone brick, reach fixed effect, also be convenient for simultaneously change the adjustment to the refractory fiber felt of insulating layer, the controllability of device has been strengthened, the heat-proof quality of the refractory fiber felt of insulating layer itself is very good, but intensity is lower, consequently, the combination is in the position that is close to barrel one side of the brick body, do not influence hanging kiln skin nature and high temperature strength in the spinel brick use. When the refractory bricks form a whole-ring stable lining structure at high temperature after building, the refractory fiber felt of the heat-insulating layer forms a continuous or discontinuous annular structure, so that the heat conductivity of the brick body and the whole-ring structure is effectively reduced, and the temperature of the barrel is reduced.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the top view structure of the present invention.

In the figure: 1. a spinel refractory brick working layer; 2. a spinel refractory brick low heat conducting layer; 3. a heat insulating layer refractory fiber felt; 4. chamfering in the through hole; 5. chamfering the edges of the through holes; 6. a spinel refractory brick transition layer.

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. 1-3, the present invention provides a technical solution: a novel spinel brick for a cement rotary kiln comprises a spinel refractory brick working layer 1 and a spinel refractory brick transition layer 6, wherein the left side of the spinel refractory brick working layer 1 is provided with a spinel refractory brick low heat conduction layer 2, the left side inner wall of the spinel refractory brick low heat conduction layer 2 is connected with a heat-insulating refractory fiber felt 3, the left side of the spinel refractory brick working layer 1 is in a wave shape, a welding integrated structure is arranged between the spinel refractory brick working layer 1 and the spinel refractory brick low heat conduction layer 2, the left side of the spinel refractory brick working layer 1 is in a wave shape, so that the spinel refractory brick working layer 1 and the spinel refractory brick low heat conduction layer 2 can be well fused with the right side of the spinel refractory brick low heat conduction layer 2 after being pressed and molded, the spinel refractory brick working layer 1 and the spinel refractory brick low heat conduction layer 2 are in a welding integrated structure, and the spinel refractory brick working layer 1 and the spinel refractory brick low heat conduction layer 2 are pressed and molded and, the two are connected more firmly and can not be separated and damaged easily;

the middle part of the left side of the spinel refractory brick low heat conduction layer 2 is provided with a through hole inner chamfer 4, the inner wall of the left side of the spinel refractory brick low heat conduction layer 2 is provided with a through hole edge chamfer 5, the size of the outer wall of a thermal insulation layer refractory fiber felt 3 is matched with the size of the inner wall of the through hole edge chamfer 5, the thermal insulation layer refractory fiber felt 3 is movably connected with the through hole edge chamfer 5, the size of the outer wall of the thermal insulation layer refractory fiber felt 3 is matched with the size of the inner wall of the through hole edge chamfer 5, the thermal insulation layer refractory fiber felt 3 is more closely attached when being arranged on the inner wall of the through hole edge chamfer 5 and cannot be easily separated from the inner wall of the through hole edge chamfer 5, the two are more closely connected, the thermal insulation layer refractory fiber felt 3 is movably connected with the through hole edge chamfer 5, the thermal insulation layer refractory fiber felt 3, the fixing effect is achieved, meanwhile, the replacement and adjustment of the heat-insulating layer refractory fiber felt 3 are convenient, the adjustability of the device is enhanced, the shape of the through hole inner chamfer 4 is of a trapezoidal structure, a welding integrated structure is arranged between the through hole inner chamfer 4 and the through hole edge chamfer 5, the shape of the through hole inner chamfer 4 is of a trapezoidal structure, the chamfers of the through hole edge chamfers 5 on two sides are R < 5mm, meanwhile, the welding integrated structure is adopted, the connection is firmer and more stable, the strength of the stone brick structure is enhanced, the through hole edge chamfer 5 is attached to the outer wall below the through hole inner chamfer 4, the welding integrated structure is arranged between the through hole inner chamfer 4 and the through hole edge chamfer 5, the through hole edge chamfer 5 is attached to the outer wall below the through hole inner chamfer 4, no gap exists between the structures, the welding integrated structure is adopted, the through hole edge chamfer 5 is fixed on the outer wall below the through hole inner chamfer 4, so that the structure between the two is more stable

Spinel is able to bear or endure firebrick transition layer 6 and settles in spinel and is able to bear or endure firebrick working layer 1, the interior wall area of spinel is able to bear or endure firebrick transition layer 6 is unanimous with spinel is able to bear or endure firebrick working layer 1 outer wall area size, and spinel is able to bear or endure firebrick transition layer 6's inner wall area is unanimous with spinel is able to bear or endure firebrick working layer 1 outer wall area size, make spinel be able to bear or endure firebrick working layer 1 outer wall area of 6 the protection by spinel is able to bear or endure firebrick transition layer 6 cover, be favorable to improving the refractiveness of stone brick, while spinel is able to bear or endure firebrick transition layer 6's inner wall and spinel is.

The working principle is as follows: for the novel spinel brick for the cement rotary kiln, firstly, the spinel brick for the cement rotary kiln is manufactured through compression firing, after the novel spinel brick for the cement rotary kiln is manufactured, the novel spinel brick for the cement rotary kiln is arranged in a wall body, the stone brick adopts a composite structure whole body, the composite structure whole body is formed by a spinel refractory brick working layer 1, a spinel refractory brick low heat conduction layer 2 and a heat-insulating layer refractory fiber felt 3, the left side of the spinel refractory brick working layer 1 is in a wave shape, the formed brick body forms a material transition layer with high heat conduction and ground heat conduction, meanwhile, the stress caused by different expansion of materials in the firing process can be buffered, the spinel refractory brick working layer 1 and the spinel refractory brick low heat conduction layer 2 are sintered into a whole body with consistent combination, cracks are prevented from being generated at a contact position after firing, and the heat-insulating layer refractory fiber felt 3 is arranged on the outer wall, after the brick is built at high temperature, the refractory brick forms a whole-ring stable lining structure, and meanwhile, the refractory fiber felt 3 of the heat-insulating layer forms a continuous or discontinuous annular structure, so that the heat-conducting performance of the brick body and the whole-ring structure is effectively reduced, and the temperature of the barrel is reduced.

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 (6)

1. The utility model provides a novel spinel brick for cement rotary kiln, includes that spinel is able to bear or endure firebrick working layer (1) and spinel is able to bear or endure firebrick transition layer (6), its characterized in that: the left side of resistant firebrick working layer of spinel (1) is settled there is resistant firebrick of spinel low heat-conducting layer (2), and the left side inner wall connection of resistant firebrick of spinel low heat-conducting layer (2) has insulating layer refractory fiber felt (3), the left side middle part of resistant firebrick of spinel low heat-conducting layer (2) is provided with through-hole inner chamfer (4), and the left side inner wall of resistant firebrick of spinel low heat-conducting layer (2) settles and have through-hole arris chamfer (5), resistant firebrick transition layer of spinel (6) are settled in resistant firebrick working layer.

2. The novel spinel brick for a cement rotary kiln as claimed in claim 1, wherein: the left side of spinel firebrick working layer (1) is the wave shape, and is for welding integrative structure between spinel firebrick working layer (1) and the low heat-conducting layer (2) of the spar firebrick.

3. The novel spinel brick for a cement rotary kiln as claimed in claim 1, wherein: the size of the outer wall of the heat-insulating layer refractory fiber felt (3) is matched with the size of the inner wall of the through hole edge chamfer (5), and the heat-insulating layer refractory fiber felt (3) is movably connected with the through hole edge chamfer (5).

4. The novel spinel brick for a cement rotary kiln as claimed in claim 1, wherein: the shape of the inner chamfer (4) of the through hole is of a trapezoidal structure.

5. The novel spinel brick for a cement rotary kiln as claimed in claim 1, wherein: the through hole edge chamfer (5) is attached to the outer wall below the through hole inner chamfer (4), and a welding integrated structure is arranged between the through hole inner chamfer (4) and the through hole edge chamfer (5).

6. The novel spinel brick for a cement rotary kiln as claimed in claim 1, wherein: the inner wall area of the spinel refractory brick transition layer (6) is consistent with the outer wall area of the spinel refractory brick working layer (1), and the inner wall of the spinel refractory brick transition layer (6) is attached to the outer wall of the spinel refractory brick working layer (1).

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