CN209262529U

CN209262529U - A kind of insulating cover used for hood-type annealing furnace

Info

Publication number: CN209262529U
Application number: CN201821675145.1U
Authority: CN
Inventors: 张军平
Original assignee: Xinyu Mingcheng Cold Rolled Steel Strip Co Ltd
Current assignee: Xinyu Mingcheng Cold Rolled Steel Strip Co Ltd
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2019-08-16
Anticipated expiration: 2028-10-16

Abstract

The utility model relates to a kind of insulating covers used for hood-type annealing furnace, include junction box (1), heating layer (2), Muffle brick layer (3), steel shell layer (5), outer heat insulation layer (4), top fixing plate (10), steel spray head (6), steel pipe (7) and hanging ring (8)；It is characterized in that, the overall appearance shape of insulating cover used for hood-type annealing furnace is cylindrical shape, heating layer (2) is located at the inside of insulating cover used for hood-type annealing furnace, Muffle brick layer (3) is located at the outside of heating layer (2) and mutual close neighbour, and steel shell layer (5) is located at the outside of Muffle brick layer (3) and mutual close neighbour；Outer heat insulation layer (4) is located at the outside of steel shell layer (5) and mutual close neighbour；The utility model is mainly used to the outer cover as bell type annealing furnace, has the characteristics that heat insulation effect is good.

Description

A kind of insulating cover used for hood-type annealing furnace

Technical field

The utility model relates to bell type annealing furnace application technology, in particular to a kind of insulating cover used for hood-type annealing furnace.

Background technique

In cold-rolled process, physical property needs are adjusted steel band according to practical condition；Bell-type annealing belongs to Air in tank is extracted out before returning goods, is pouring into nitrogen or inert gas, be then electrified to heat, burn by busbar bright annealing technology How many degree, how many degree keep how long, then gradually Temperature fall again, have a whole set of annealing temperature controlling curve, bell-type The outer cover of annealing furnace is commonly used to protect mild heat, and heat insulation effect is better, and the loss in heating process is smaller, the energy of consumption Smaller, i.e., more energy saving, temperature control is also more convenient, and the thermal insulation material of previous bell type annealing furnace mainly uses asbestos or fibre Material thermal insulation material is tieed up, has the characteristics that light weight, heat insulation effect is general, and the utility model is intended to provide a kind of high temp effect Better outer cover.

Summary of the invention

The utility model against the above deficiency, proposes offer thermal insulation property preferably insulating cover used for hood-type annealing furnace, Heat insulation effect mainly is provided by design Muffle brick layer, it is frangible for opposite steel plate since muffle brick weight is big, so needing A structure is designed to fix Muffle brick layer.

A kind of insulating cover used for hood-type annealing furnace includes junction box (1), heating layer (2), Muffle brick layer (3), steel shell layer (5), outer heat insulation layer (4), top fixing plate (10), steel spray head (6), steel pipe (7) and hanging ring (8)；It is characterized in that, bell-type annealing The overall appearance shape of furnace insulating cover is cylindrical shape, and heating layer (2) is located at the inside of insulating cover used for hood-type annealing furnace, horse Not brick layer (3) is located at the outside of heating layer (2) and mutual close neighbour, steel shell layer (5) are located at the outside of Muffle brick layer (3) and mutually paste It is adjacent；Outer heat insulation layer (4) is located at the outside of steel shell layer (5) and mutual close neighbour；Junction box (1) is mounted on the barrel of outer heat insulation layer (4) On, top fixing plate (10) is located at top, and is welded to connect with steel shell layer (5), and hanging ring (8) is mounted on top fixing plate (10) Overcentre, the steel spray head (6) are located at below top fixing plate (10), and steel pipe (7) is connected to steel spray head (6), in Muffle brick layer (3) bottom is also equipped with backing plate (9).

Further, between heating layer (2) and Muffle brick layer (3), one layer of high-temperature steel protective net is installed, can protect With fixed Muffle brick layer (3).

Further, muti-piece securing plate is provided with above top fixing plate (10), entire outer cover needs are sling, securing plate tool Play the role of reinforcing outer cover.

Further, there are connecting line connection in junction box (1) and heating layer (2), and heating layer (2) is heating copper wire, are formed Ring-type, to being internally heated.

Further, Muffle brick layer is combined by muti-piece arc muffle brick, and thickness need to be greater than 2cm.

Detailed description of the invention

Fig. 1 is the insulating cover structural schematic diagram used for hood-type annealing furnace of the utility model embodiment.

Fig. 2 is outer cover section enlarged diagram.

Fig. 3 is the schematic diagram of top fixing plate.

Specific embodiment

The utility model is described in detail below with reference to specific embodiments and the drawings.

Referring to Fig. 1, show a kind of insulating cover used for hood-type annealing furnace, comprising junction box 1, heating layer 2, Muffle brick layer 3, Steel shell layer 5, outer heat insulation layer 4, top fixing plate 10, steel spray head 6, steel pipe 7 and hanging ring 8；Insulating cover used for hood-type annealing furnace it is whole Body face shaping is cylindrical shape, and heating layer 2 is located at the inside of insulating cover used for hood-type annealing furnace, and Muffle brick layer 3 is located at heating layer 2 Outside and mutual close neighbour, steel shell layer 5 be located at the outside of Muffle brick layer 3 and mutual close neighbour；Outer heat insulation layer 4 is located at steel shell layer 5 Outside and mutual close neighbour；Junction box 1 is mounted on the barrel of outer heat insulation layer 4, and top fixing plate 10 is located at top, and with steel shell layer 5 are welded to connect, and hanging ring 8 is mounted on the overcentre of top fixing plate 10, and the steel spray head 6 is located at 10 lower section of top fixing plate, Steel pipe 7 is connected to steel spray head 6, is also equipped with backing plate 9 in 3 bottom of Muffle brick layer.

As Fig. 2 specifically between heating layer 2 and Muffle brick layer 3, installs one layer of high-temperature steel protective net 3a, can protect Shield and fixed Muffle brick layer 3, steel protective net 3a can also fix heating layer 2.

Steel protective net 3a is resistant to 1000 degree of high temperature, generallys use steel alloy, such as 3Cr18Ni25Si2 kind.

Muffle brick layer 3 generallys use adhesive and is sticked on steel shell layer 5, and steel shell layer 5 needs the major part weight of Muffle brick layer 3 Amount, therefore it is also required to securely, not there is abnormal deformation.

Outer heat insulation layer 4 uses asbestos thermal insulation material, and asbestos weight is lighter, and high temperature resistant, heat insulation is relatively good, same thickness Under, asbestos do not have that muffle brick heat insulation effect is good, proper as outermost.

Specifically, such as Fig. 3, muti-piece securing plate is provided with above top fixing plate 10, entire outer cover needs are sling, securing plate Have the function of reinforcing outer cover, top fixing plate (10) has insulation effect simultaneously.

Specifically, junction box 1 and heating layer 2 have connecting line connection, and heating layer 2 is heating copper wire, form ring-type, internally It is heated in portion.

When the effect of steel spray head 6 is that annealing is cooling, for spraying water, high temperature resistant.

Specifically, Muffle brick layer 3 is combined by muti-piece arc muffle brick, and thickness need to be greater than 2cm, reaches this thickness, Its heat insulation effect can be relatively good；Temperature in annealing furnace usually within 1000 degree, by the thickness design of Muffle brick layer 2cm extremely In 2.4cm, heat insulation effect is good, and economical.

The effect of hanging ring 8 is mainly used to the fixed use of loop wheel machine hook, it should be noted that installs multiple hang above sometimes Ring, it is more stable when outer cover being allowed to be lifted.

The specific implementation step of the utility model are as follows: insulating cover used for hood-type annealing furnace is mainly as the outer of bell type annealing furnace There is cover heating and insulation effect, heating function to realize that heat insulation function is by Muffle brick layer 3 and outer heat insulation layer 4 by heating layer 2 It realizes, in order to make Muffle brick layer 3 stronger, one layer of steel protective net 3a is set in Muffle brick layer 3, and steel protective net 3a is by spy resistant to high temperature Different steel are made.

The advantages of the utility model, due to using muffle brick as thermal insulation material, it is very good to keep the temperature, and sets simultaneously Price plate and steel protective net 3a are counted, to promote whole fastness.

Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered Range.

Claims

1. a kind of insulating cover used for hood-type annealing furnace, comprising junction box (1), heating layer (2), Muffle brick layer (3), steel shell layer (5), Outer heat insulation layer (4), top fixing plate (10), steel spray head (6), steel pipe (7) and hanging ring (8)；It is characterized in that, used for hood-type annealing furnace The overall appearance shape of insulating cover is cylindrical shape, and heating layer (2) is located at the inside of insulating cover used for hood-type annealing furnace, muffle brick Layer (3) is located at the outside of heating layer (2) and mutual close neighbour, steel shell layer (5) are located at the outside of Muffle brick layer (3) and mutual close neighbour； Outer heat insulation layer (4) is located at the outside of steel shell layer (5) and mutual close neighbour；Junction box (1) is mounted on the barrel of outer heat insulation layer (4), Top fixing plate (10) is located at top, and is welded to connect with steel shell layer (5), and hanging ring (8) is mounted in top fixing plate (10) Side in the heart, the steel spray head (6) are located at below top fixing plate (10), and steel pipe (7) is connected to steel spray head (6), in Muffle brick layer (3) Bottom is also equipped with backing plate (9).

2. insulating cover used for hood-type annealing furnace according to claim 1, which is characterized in that in heating layer (2) and muffle brick Between layer (3), one layer of high-temperature steel protective net 3a is installed.

3. insulating cover used for hood-type annealing furnace according to claim 1, which is characterized in that outer heat insulation layer (4) uses asbestos Thermal insulation material.

4. insulating cover used for hood-type annealing furnace according to claim 1, which is characterized in that set above top fixing plate (10) It is equipped with muti-piece securing plate.

5. insulating cover used for hood-type annealing furnace according to claim 1, which is characterized in that Muffle brick layer is by muti-piece arc horse Not brick is combined into, and thickness is greater than 2cm.