Spraying device for overall layered cooling of furnace body of ferronickel heating furnace

Abstract

The utility model belongs to the technical field of iron alloy smelting equipment, and particularly relates to a spraying device for overall layered cooling of a ferronickel heating furnace body. The spraying device is used for cooling the outer wall of the furnace body of the ferronickel heating furnace. The spraying device comprises a furnace body spraying header pipe installed around a furnace body, a plurality of multi-layer spraying branch pipes are led out from the furnace body spraying header pipe, the other end of each spraying branch pipe is provided with a nozzle and arranged on the wall of the furnace body, a water baffle is arranged on a furnace body support corresponding to each nozzle, and a water return groove is formed in the furnace body and corresponds to the lower portion of each layer of spraying branch pipe. A plurality of multi-layer spraying branch pipes are wound and led out by the furnace body spraying main pipe to spray and cool the furnace body, so that the temperature of a refractory material of the furnace lining is reduced, the service life of the furnace lining is averagely prolonged by 2-3 years, and the investment cost is reduced. The overall temperature of the furnace shell is reduced, the temperature of the steel is reduced, and the physical performance of the steel can be brought into play. The environment temperature around the furnace body is reduced, and environment protection and work of operators are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of ferroalloy smelting equipment, namely a nickel iron ore hot stove body whole layer cooling's spray device. BACKGROUND

[0002] The nickel iron ore hot stove body device belongs to the key equipment in the ferroalloy smelting ore hot stove equipment, and its role is to contain and process combustion products, bear the weight of refractory material, steel liquid and slag liquid, resist physical deformation and support the cover, and mainly include furnace bottom plate, furnace shell, tap hole and slag outlet, and is widely applied due to simple and reliable structure.

[0003] The working environment of the stove body is quite complex, the temperature in the furnace is generally about 1800 DEG C, the temperature at the bottom is basically 1400 DEG C to 1700 DEG C, the temperature of the furnace lining refractory material is generally 200 DEG C, and the temperature of the furnace shell is basically about 120 DEG C, which has a great influence on the service life of the steel under such environment temperature, and problems are found in practical application.

[0004] 1. In the use process of the nickel iron ore hot stove, the long-term use of the furnace lining at high temperature will accelerate the wear of the furnace lining, and the furnace lining needs to be replaced every 1 to 3 years, which increases the investment cost.

[0005] 2. The furnace shell is sometimes deformed too much under the influence of thermal stress, which affects its structural strength, and the stove body also needs to support the cover, and too much deformation will have risk hidden dangers.

[0006] 3. Due to the high temperature of the furnace shell itself, the ambient temperature around the stove body is about 30 DEG C to 40 DEG C, which is not conducive to personnel maintenance and daily operation. INVENTION CONTENTS

[0007] The utility model aims at the above-mentioned insufficient and provides a nickel iron ore hot stove body whole layer cooling's spray device with reasonable structure and good cooling effect.

[0008] The technical solution of the utility model is as follows: a nickel iron ore hot stove body whole layer cooling's spray device, which comprises a stove body spray main pipe installed around the stove body, a plurality of multilayer spray branch pipes led out from the stove body spray main pipe, a nozzle at the other end of each spray branch pipe, a water baffle arranged on the stove body support corresponding to each nozzle, and a backwater tank arranged below each layer of spray branch pipes on the stove body.

[0009] The spray branch pipes are sequentially connected with valves and flexible joints.

[0010] The utility model discloses a advantage is: 1, adopt the furnace body spray main pipe encircles and leads out multiple multilayer spray branch pipe to the furnace body spray cooling, reduce furnace lining refractory material temperature, average improve furnace lining 2 to 3 years of service life, reduce investment cost. 2, furnace shell whole temperature reduces, reduced the temperature of steel material itself, is favorable to the development of steel material physical performance. 3, reduced the environmental temperature around the furnace body, is favorable to the protection of environment and the work of operating personnel.

[0011] The embodiment of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0012] Fig. 1 It is the furnace body spray main pipe part structure diagram of the utility model.

[0013] Fig. 2 It is the vertical section view diagram of furnace body.

[0014] Fig. 3 It is the overall arrangement structure diagram of the utility model. PREFERRED EMBODIMENT

[0015] Referring to Figs. 1-3 , furnace body spray main pipe 1, U bolt support 2, spray branch pipe 3, valve 4, flexible joint 5, nozzle 6, water baffle 7, backwater tank 8, furnace body 9.

[0016] Referring to Figs. 1-3 , a kind of nickel iron ore hot furnace furnace body whole layered cooling spray device, furnace body spray main pipe 1 is fixed on furnace body support with U bolt support 2, furnace body spray main pipe 1 is installed around furnace body 9, multiple multilayer spray branch pipe 3 is led out from furnace body spray main pipe 1, spray branch pipe 3 is sequentially connected with valve 4, flexible joint 5.Multiple layers refer to the spray site formed by multiple spray branch pipes 3 same length. Every spray branch pipe 3 other end head has nozzle 6, and is placed at furnace body wall. Corresponding every nozzle 6 is provided on furnace body support water baffle 7, to prevent spray water splashing. Backwater tank 8 is set below corresponding every layer spray branch pipe 3 on furnace body 9. Through annular furnace body spray main pipe 1 and vertical spray branch pipe 3 cooperation, reach the whole cooling of furnace 9 furnace outer wall.

[0017] Referring to Fig. 2 Fig. 3 , it is installed around the water passage component of furnace 9. In the embodiment, two layers of backwater tank and two layers of vertical multiple spray branch pipes 3 (not limited to this) are provided on furnace 9, which play a role in cooling the whole or part of the furnace equipment through layered spraying, and have the ability to locally cool or centrally cool the outer wall of furnace 9. The length of the spray branch pipe 3 is not limited, and the number is not limited.

[0018] The device circulates industrial cooling water to make the furnace body and the water fully exchange heat, lower the temperature of the furnace body, further lower the overall temperature of the furnace lining refractory material, achieve that the furnace lining is heated uniformly, and improve the service life of the furnace lining.

[0019] The above description is only a specific implementation manner of the present application, and various illustrations do not constitute limitation on the essential content of the present application.

Claims

1. A spray device for integral layered cooling of a nickel-iron ore furnace body, characterized in that... The furnace body spray main pipe (1) is installed around the furnace body (9). Multiple multi-layer spray branch pipes (3) are led out from the furnace body spray main pipe (1). Each spray branch pipe (3) has a nozzle (6) at the other end and is placed on the furnace body wall. A baffle plate (7) is set on the furnace body support for each nozzle (6). A return water tank (8) is set on the furnace body (9) below each layer of spray branch pipe (3).

2. A spray device for integral layered cooling of a nickel-iron ore blast furnace body according to claim 1, characterized in that... The spray branch pipe (3) is connected in sequence to a valve (4) and a swivel joint (5).

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