CN211668276U

CN211668276U - Furnace threshold prefabricated part of aluminum smelting furnace

Info

Publication number: CN211668276U
Application number: CN202020269778.3U
Authority: CN
Inventors: 曾虎; 梁继东; 拓如印; 高松林; 李志涛
Original assignee: Luoyang Wanji Aluminium Processing Co Ltd
Current assignee: Luoyang Wanji Aluminium Processing Co Ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-10-13
Anticipated expiration: 2030-03-07

Abstract

The utility model discloses an aluminium smelting furnace gate threshold prefab, with furnace door frame backplate, furnace gate threshold bottom surface steel sheet cooperation installation. The prefabricated member unit is formed by assembling a plurality of prefabricated member unit main bodies, wherein the prefabricated member unit main bodies are cuboid; the front end face of the prefabricated part unit main body is provided with a raised limiting step, the front end face of the limiting step is parallel to the front end face of the prefabricated part unit main body, the upper end face of the limiting step is overlapped with the upper end face of the prefabricated part unit main body, and the limiting step extends from the left end face of the prefabricated part unit main body to the right end face of the prefabricated part unit main body; the lower part of the prefabricated part unit main body is provided with a front-back T-shaped groove, and the T-shaped groove is vertically opened from the front end surface of the prefabricated part unit main body to the rear end surface of the prefabricated part unit main body. Firstly, assemble into aluminium smelting furnace gate threshold prefab through prefab unit main part for replacement cost greatly reduced, secondly, the design in T-slot makes the fixed degree of prefab unit main part more outstanding.

Description

Furnace threshold prefabricated part of aluminum smelting furnace

Technical Field

The utility model belongs to the technical field of the smelting furnace, concretely relates to aluminium smelting furnace gate threshold prefab.

Background

In the smelting process of aluminum processing production, a furnace threshold of an aluminum smelting furnace needs to withstand thermal shock of high temperature in the furnace, mechanical abrasion and impact caused by a slag removing tool and aluminum slag during slag removing operation and mechanical abrasion and impact caused by a charging tool and furnace burden during charging, so that the furnace threshold is easy to damage, and needs to be maintained after damage.

The utility model with application number CN201821613935.7 discloses a stand wear and tear aluminium melting furnace threshold prefab, however, this threshold prefab makes overall structure, if there is a damage in the production, just so need wholly change the threshold prefab, and the cost is higher.

The utility model with application number CN201120320843.1 discloses a furnace door sill of a smelting furnace, which is provided with a furnace bottom pouring material layer, an impermeable layer and a heat preservation layer from top to bottom in sequence, a cast iron groove is arranged in the furnace bottom pouring material layer, a plurality of precast blocks are covered on the cast iron groove, the upper surface of the precast blocks is coincided with the upper surface of the furnace bottom pouring material layer, the precast blocks are used for replacing partial pouring material on the surface of the furnace door, the abrasion resistance of the furnace door is enhanced, moreover, the precast blocks can be replaced by single blocks, and the maintenance and replacement are convenient, the technical proposal disclosed by the utility model is that an aluminum silicate fiber product is arranged between the contact surfaces of the cast iron groove and the precast blocks, on one hand, the friction force between the contact surfaces of the cast iron groove and the precast blocks is increased, on the other hand, the replacement of the precast blocks is convenient, the precast blocks can be lifted at two ends of the aluminum silicate fiber product, less residue and improved construction environment. In fact, the friction between the aluminium silicate fibre product and the cast iron groove does not fix the precast block well, and as the service life increases and the precast block wears, the precast block moves in the cast iron groove, and the damage is accelerated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that proposes among the background art, reach "1 reduce threshold prefab replacement cost, 2 improve the purpose of the fixed degree of threshold prefab", the utility model provides an aluminium smelting stove furnace gate threshold prefab.

A furnace threshold prefabricated part of an aluminum smelting furnace is matched with a furnace door frame guard plate and a furnace door threshold bottom steel plate and is formed by assembling a plurality of prefabricated part unit main bodies, wherein each prefabricated part unit main body is cuboid;

the front end face of the prefabricated part unit main body is provided with a raised limiting step, the front end face of the limiting step is parallel to the front end face of the prefabricated part unit main body, the upper end face of the limiting step is overlapped with the upper end face of the prefabricated part unit main body, and the limiting step extends from the left end face of the prefabricated part unit main body to the right end face of the prefabricated part unit main body;

the lower part of the prefabricated part unit main body is provided with a front-back T-shaped groove, and the T-shaped groove is vertically opened from the front end surface of the prefabricated part unit main body to the rear end surface of the prefabricated part unit main body. Correspondingly, the corresponding T-shaped steel structure that is provided with T-shaped groove size adaptation on the furnace threshold bottom surface steel sheet for prefab unit main part can embolia through the T-shaped groove, and then makes fixed degree obtain promoting.

Furthermore, vertical grooves are respectively formed from the upper end faces of the prefabricated unit main bodies to the middle of the prefabricated unit main bodies along two vertical edges of the rear end faces of the prefabricated unit main bodies, and the vertical grooves of two adjacent prefabricated unit main bodies form a pouring channel.

Furthermore, a channel is formed in the middle of the prefabricated unit main body along the left end face, the rear end face and the right end face of the prefabricated unit main body, the channel is intersected with the lower end of the vertical groove and further communicated with the vertical groove, and the channels of the two adjacent prefabricated unit main bodies form a pouring channel.

Further, the distance between the front end face of the limiting step and the front end face of the prefabricated unit main body is consistent with the thickness of the furnace door frame protective plate.

Further, refractory materials are used for pouring and filling in the pouring channel.

Further, the prefabricated unit main body is fired by using a high-strength high-temperature-resistant material.

Compared with the prior art, the utility model discloses a technical scheme has following beneficial effect: firstly, assemble into aluminium smelting furnace gate threshold prefab through prefab unit main part for replacement cost greatly reduced, secondly, the design in T-slot makes the fixed degree of prefab unit main part more outstanding.

Drawings

FIG. 1: a schematic view of an aluminum smelting furnace sill preform;

FIG. 2: a schematic view of an aluminum smelting furnace sill preform;

FIG. 3: an installation schematic diagram of an aluminum smelting furnace door sill prefabricated part;

FIG. 4: FIG. 3 is a sectional view taken along line A-A;

FIG. 5: an installation schematic diagram of an aluminum smelting furnace door sill prefabricated part;

in the figure: 1. the prefabricated member unit comprises a prefabricated member unit body, 1.1. T-shaped grooves, 1.2. limiting steps, 1.3. vertical grooves and 1.4. channel grooves.

Detailed Description

The following description of the embodiments of the present invention is provided with the accompanying drawings, and the purpose of the disclosed embodiments is to explain and explain the present invention, rather than to limit the present invention, and all technical solutions obtained by simple replacement, combination and development on the basis of the present invention should fall into the protection scope of the present invention.

Example one

As shown in fig. 1-5, a furnace threshold prefabricated member of an aluminum smelting furnace is installed in cooperation with a furnace door frame guard plate and a furnace door threshold bottom steel plate and is formed by assembling a plurality of prefabricated member unit bodies 1 side by side, wherein the prefabricated member unit bodies 1 are cuboid, the prefabricated member unit bodies 1 are fired by using high-strength high-temperature-resistant materials, and refractory materials are filled between the adjacent prefabricated member unit bodies 1, so that a connecting gap can be effectively sealed, and the purpose of preventing leakage is achieved;

the front end face of the prefabricated part unit main body 1 is provided with a raised limit step 1.2, the front end face of the limit step 1.2 is parallel to the front end face of the prefabricated part unit main body 1, the upper end face of the limit step 1.2 is superposed with the upper end face of the prefabricated part unit main body 1, the limit step 1.2 extends from the left end face of the prefabricated part unit main body 1 to the right end face of the prefabricated part unit main body 1, the distance between the front end face of the limit step 1.2 and the front end face of the prefabricated part unit main body 1 is consistent with the thickness of a furnace door frame protection plate, the distance is usually 80-120mm, and the block is easy to fall off when the distance is too thin, the sealing surface of the furnace door is damaged after the block falls off, the furnace is easy to break out, if the thickness of the furnace door is too thick, the furnace door occupies the opening of the furnace, other work such as feeding is influenced, the distance of 80-120mm can ensure that the furnace wall around the furnace door opening is on a plane, and the flame in the furnace can not run out under the compression state of the furnace door;

the lower part of prefab unit main part 1 is opened there is fore-and-aft T-shaped groove 1.1, T-shaped groove 1.1 is from the preceding terminal surface of prefab unit main part 1 and is opened to the rear end face of prefab unit main part 1 all the time, correspondingly, correspond on the furnace doorsill bottom surface steel sheet be provided with the T-shaped steel structure of T-shaped groove 1.1 size adaptation, make prefab unit main part 1 embolia through T-shaped groove 1.1, and then make fixed degree obtain promoting, can also avoid taking off the sediment, mechanical shock and friction between instrument or furnace charge and the main part 1 when reinforced, cause rocking of main part 1, shift, lead to the condition such as furnace doorsill destruction or seepage aluminium to appear.

Vertical grooves 1.3 are respectively formed from the upper end face of the prefabricated unit main body 1 to the middle of the prefabricated unit main body 1 along two vertical edges of the rear end face of the prefabricated unit main body 1, the length of the groove edge of the horizontal section of each vertical groove 1.3 is 40-50mm, the vertical grooves 1.3 of the two adjacent prefabricated unit main bodies 1 form a pouring channel, and refractory materials are poured and filled in the pouring channel.

The left end face, the rear end face and the right end face of the prefabricated unit main body 1 are provided with a channel 1.4 along the middle part of the prefabricated unit main body 1, the groove depth of the channel 1.4 is 40-50mm, the groove width is 80-100mm, the channel 1.4 is intersected with the lower end of a vertical groove 1.3 and further communicated with the vertical groove 1.3, the channels 1.4 of two adjacent prefabricated unit main bodies 1 form a pouring channel, and refractory materials are poured and filled in the pouring channel.

When the damaged part of the prefabricated part of the furnace door sill is maintained, the furnace door frame protective plate at the damaged part is detached firstly, the filled refractory materials are poured in a gap and a channel, the damaged prefabricated part unit main body 1 is pulled out, the side surface of the new prefabricated part unit main body 1 is coated with the refractory materials, the T-shaped steel structure matched with the steel plate on the bottom surface of the furnace door sill is sleeved with the T-shaped groove 1.1 of the new prefabricated part unit main body 1, then the refractory materials are poured and filled into the pouring channel, and finally the furnace door frame protective plate is installed.

Claims

1. The utility model provides an aluminium smelting furnace stove threshold prefab, installs its characterized in that with stove door frame backplate, the cooperation of furnace gate threshold bottom surface steel sheet: the prefabricated member is formed by assembling a plurality of prefabricated member unit main bodies (1), wherein the prefabricated member unit main bodies (1) are cuboid;

the front end face of the prefabricated part unit main body (1) is provided with a raised limiting step (1.2), the front end face of the limiting step (1.2) is parallel to the front end face of the prefabricated part unit main body (1), the upper end face of the limiting step (1.2) is superposed with the upper end face of the prefabricated part unit main body (1), and the limiting step (1.2) extends to the right end face of the prefabricated part unit main body (1) from the left end face of the prefabricated part unit main body (1);

the lower part of the prefabricated part unit main body (1) is provided with a front-back T-shaped groove (1.1), and the T-shaped groove (1.1) is vertically opened from the front end surface of the prefabricated part unit main body (1) to the rear end surface of the prefabricated part unit main body (1).

2. An aluminium smelting furnace fire sill pre-form as claimed in claim 1, characterised in that: vertical grooves (1.3) are respectively formed from the upper end face of the prefabricated unit main body (1) to the middle of the prefabricated unit main body (1) along two vertical edges of the rear end face of the prefabricated unit main body (1), and the vertical grooves (1.3) of two adjacent prefabricated unit main bodies (1) form a pouring channel.

3. An aluminium smelting furnace fire sill pre-form as claimed in claim 2, characterised in that: the left end face, the rear end face and the right end face of the prefabricated unit main body (1) are provided with a channel (1.4) along the middle of the prefabricated unit main body (1), the channel (1.4) is intersected with the lower end of the vertical groove (1.3) and further communicated with the vertical groove (1.3), and the channels (1.4) of two adjacent prefabricated unit main bodies (1) form a pouring channel.

4. An aluminium smelting furnace fire sill pre-form as claimed in claim 1, characterised in that: the distance between the front end face of the limiting step (1.2) and the front end face of the prefabricated unit main body (1) is consistent with the thickness of the furnace door frame protective plate.

5. An aluminium smelting furnace fire sill pre-form as claimed in claim 3, characterised in that: and the pouring channel is filled with refractory materials.

6. An aluminium smelting furnace fire sill pre-form as claimed in claim 1, characterised in that: the prefabricated unit main body (1) is fired by using a high-strength high-temperature-resistant material.