A kind of masonry method for inner lining of reduction furnace

A reduction furnace and lining technology, which is applied in the field of lead smelting, can solve the problems of short service life of refractory bricks, many spray gun specifications, and difficult replacement, and achieve the effects of avoiding shutdown, high economic benefits, and reducing the probability of reduction reaction

CN106382821BActive Publication Date: 2018-09-21岷山环能高科股份公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-09-21

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Abstract

The invention discloses a laying method for a lining of a reduction furnace. Laying of the lining is performed in the reduction furnace from bottom to top. The laying method for the lining comprises the following steps: a: the lower half part of the lining is laid in a staggered-joint manner, expansion joints are reserved in a spray gun area, after half of the lining is laid, an arch form is manufactured, and a support is prepared; and b: the upper half part of the lining is also laid in a staggered-joint manner, a filler is well filled, when laying reaches a lock brick, the lock brick needs to be processed in advance, after the lock brick is completely laid, a steel plate of 2-3 mm in thickness is adopted for strengthening and locking, flat laying is adopted at the broken part of a spherical arch and expansion joints are reserved. By adoption of the laying method, the service life of the lining of the reduction furnace is prolonged, the operation efficiency is improved, the maintenance cost of the reduction furnace is lowered, and high economic benefits are brought for enterprises.
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Description

technical field

[0001] The invention belongs to the field of lead smelting, and in particular relates to a method for building the inner lining of a reduction furnace. Background technique

[0002] At present, the advanced lead smelting process in China is the liquid slag direct reduction lead smelting process, which has the advantages of cleanness, low carbon, and short process flow. The refractory bricks in the body, the masonry structure of the refractory brick lining, and the material selection directly determine the life of the furnace body, the quality of the operating indicators and the operability of production. During the trial production process of this process, there are the following problems: (1) The refractory brick life is short, the furnace lining needs to be overhauled after one year of operation, and the tuyere area of ​​the furnace bottom needs to be repaired after 6 months of operation; (2) The masonry surface of the furnace bottom is stepped Type, there...

Examples

Embodiment Construction

[0018] Below in conjunction with specific embodiment the present invention is described in further detail:

[0019] Such as figure 1 and figure 2 As shown, a method for building the inner lining of a reduction furnace. The reduction furnace includes a feed port 1, a flue port 2, a siphon passage 3, a spray gun area 4, a slag outlet 5, and a lining 6. The reduction furnace is a horizontal round Cylindrical, there are two feeding ports 1 above the top of the reduction furnace, the flue port 2 and the siphon channel 3 are on the same side of the reduction furnace, the flue port 2 is on the top of the reduction furnace, and the siphon channel 3 is at the lower left of the reduction furnace , the slag outlet 5 is on the other side of the reduction furnace, the spray gun area 4 at the bottom of the reduction furnace is provided with ten spray guns 7, and the spray guns 7 are arranged in a single row in the spray gun area 4, and the bottom of the reduction furnace is The inner lin...