Trolley type annealing furnace: It is the standard energy-saving cycle type operation furnace, super energy-saving structure, using the whole fiber furnace film structure, saving 30% of electricity.

The use of high aluminum ceramic nail group, combined in the city sealing brick, white seal car and furnace door, integrated rail, do not mean very basic security class, placed on the level and can be used

Applications:

Used for high chromium, high manganese steel castings, ductile iron, roll, steel ball, 45 steel, stainless steel and other quenching, annealing, aging and various mechanical parts of the heat treatment.

Technical paper teaching:

(1) Rated power: according to the furnace volume

(2) Rated voltage: 380V

(3) Phase number · 3p

(4) Frequency: 50HZ

(5) High working temperature: 1200 (

(6) Number of heating zones

(7) Furnace temperature uniformity: 5±10℃

(8) Empty furnace heating time: s2

(9) Empty furnace loss: s15%

(10) Effective working area size

(11) Temperature control accuracy: ≤2℃

(12) Temperature control mode: PID control

Brief introduction of structure:

(1) The furnace body in the combined furnace and a movable combined furnace

(2) The shell of the furnace body and the trolley are welded with steel plates and sections

(3) The heating element adopts 0Cr27AL7Mo2 resistance belt produced by Shougang, which is arranged on the furnace door, furnace side, furnace back wall and platform car.

(4) The furnace lining is made of high aluminum fiber cotton, which has strong high temperature resistance and good thermal insulation, and is not replaced by ordinary fiber cotton. The load-bearing part is made of heavy firebrick to strengthen the knot of the furnace lining

In order to ensure that the heat transfer at the bottom of the car is not very high, the thermal insulation layer of the car is composed of aluminum silicate refractory fiber and diatomite insulation brick to improve the thermal insulation performance of the furnace body.

Main technical features

The electric furnace is mainly composed of the furnace body (including the furnace door), the furnace lining, the furnace door lifting, the furnace car, the furnace car transmission mechanism, the electric heating device, the temperature control and recording system and other main parts.

1 fear of body

(1) Furnace lining:

The furnace lining is made of all-aluminum silicate refractory fiber blanket with excellent thermal insulation performance, which is combined into large plates after special processing and then combined into furnace lining.

The furnace body with fire-resistant whole fiber large plate structure has excellent heat insulation performance. The weight of the whole fiber lining is only 1/30 of the refractory brick body, which not only has excellent thermal insulation performance, but also is better than the brick of the same specification

Body electric negative furnace energy saving about 30%, temperature rise faster

The enterprise fiber xu refractory structure has to finish the piece good cold resistance and stretch the wheat life than the brick furnace, which is very convenient to maintain the furnace body because of the machine city thiocamphor and easy to break, but also the local repair muscle can be extended

Yes. The lining also has the characteristics of simple installation and short construction time.

(2) Steel structure: the whole fiber plate lining is hung on the steel skeleton, which is welded by the section steel, steel plate, etc., which is lightweight and reliable. Because the furnace adopts all-fiber large plate structure lining, so its steel

The structure is much lighter than that of traditional firebrick stoves.

2, electric heating device

Using the first mentioned 毠 structure, high radiation efficiency, strengthen the heat exchange in the furnace, improve the furnace thermal efficiency, and extend the service life of the electric heating element, electric heating element using 0Cr27AI7MO2 positive

Belt, the mold processing into a waveform structure, group hanging on the furnace wall fixed parts (ceramic wish rod), installation, maintenance is very convenient, long service life.

The car electric heating element adopts the same material spiral structure,

The trolley is a platform for carrying workpieces and running. The loading plane size of the trolley is:

(1) refractory heat insulation material

Heavy brick is used to ensure compressive strength. The heat insulation layer is divided into two parts, one part is diatom ten bricks, and the other part is light sticky ten bricks to ensure the heat insulation effect

The edge of the car is flat with fire bricks to improve the limit

(2) Steel structure of furnace car

The frame is composed of section steel and channel steel, and its rigidity ensures no deformation under full load and heavy load. The lower part of the trolley is equipped with a running wheel device, and a reducer is used as a transmission mechanism. Steel sandseal around the frame. Both sides of the car

A sealing device is provided with a side sealing device.

(3) Interlocking device:

The oven is equipped with a double safety limit mechanism and a locking mechanism with the furnace door to ensure that the selection, the car is flexible and the positioning is accurate.

(4) Furnace bottom plate:

There are sea cast NN furnace bottom plates with pressure and high temperature resistance on the platform to carry over the lower parts. In order to prevent the gap between the bottom plate of the oxidized skin of the cow produced after the heating of the T part from falling into the heating element

The thermal element is damaged, so the contact between the furnace bottom plate and the furnace body is inserted

4 Stove door ·

(1) Furnace door structure:

The furnace door adopts good steel frame structure and refractory fiber as heat insulation material

(2) Starting door lifting power

The furnace door adopts electric lifting, and the electric hoist is installed above the furnace door frame.

(3) Protection:

The furnace door is provided with an upper and lower stroke double safety limit mechanism and an interlocking device with the furnace car, and the furnace car is provided with a double safety limit mechanism. Once the furnace door is opened, the electric heating element is automatically cut off and the furnace door is closed

In the state, the car is not allowed to enter or exit.

Case seal

The combination of the quality and quality of the wet seal of a patch to the hook of the control of the shadow to the panedone and the force consumption of the name of the wood pa left patch is taken by the combination of the seal and the test

(1) The combination of the furnace door and the furnace body and the furnace car

This joint part is difficult to seal the trolley type furnace, but also the furnace leakage is large, the furnace adopts the furnace door weight and the domestic advanced bomb tube pressing device. This area can be effectively sealed.

(2) The joint part of the furnace body and the two sides of the furnace car:

Because the furnace body and the furnace car are relative, the old worry about the swelling after heating, this part should have a considerable gap, so this part is made of refractory fiber and refractory brick soft contact dislocation seal, and there are sand sealing groove two

Dao pain seal good guarantee pain seal soft inside

(3) Fear of this and fear of the combination behind that

The insert type soft edge sealing village is used to press tightly by the power of the furnace car itself

6. Temperature control and recording system of resistance furnace

The control of the trolley type annealing furnace is controlled by PID over-trigger, the work is done by intelligent instrument, the size power can be adjusted, the three-phase current imbalance can be adjusted, and the temperature can be controlled according to different heat treatment processes

Required segment setting, white motion control,