CN206247838U

CN206247838U - A kind of rotary kiln

Info

Publication number: CN206247838U
Application number: CN201621202907.7U
Authority: CN
Inventors: 胡志清; 刘林
Original assignee: BAOSTEEL DESHENG STAINLESS STEEL Co Ltd
Current assignee: BAOSTEEL DESHENG STAINLESS STEEL Co Ltd
Priority date: 2016-11-08
Filing date: 2016-11-08
Publication date: 2017-06-13
Anticipated expiration: 2026-11-08

Abstract

The utility model discloses a kind of rotary kiln, including rotary kiln body and the kiln head box for being located at turn around at kiln body kiln hood rising sealing process, main burner has been fastened on kiln head box, the combustion head of main burner is located at turn around in kiln body, concurrent heating burner has also been fastened on the lateral wall of kiln head box, concurrent heating burner is not higher by kiln head box lateral wall inner surface, the rotary kiln, the concurrent heating burner for not being higher by its inner surface is installed on the lateral wall of kiln head box, to ensure that the molten iron being calcined in rotary kiln body is dropped out by kiln hood, while not damaging concurrent heating burner, realize to the heating at rotary kiln body kiln hood, its simple structure, effectively prevent because temperature is too low at rotary kiln body kiln hood, and cause molten iron ring formation, the phenomenon that yield is reduced.

Description

A kind of rotary kiln

Technical field

The utility model is related to Thermal Equipment technical field, particularly relates to a kind of rotary kiln.

Background technology

The nucleus equipment that rotary kiln is produced as ferronickel, is a revolving body being obliquely installed for high-temperature heating, revolution Body high order end is kiln tail, and low order end is kiln hood, and the kiln head box of sealing process has been provided with kiln hood, is fixed with by kiln hood on kiln head box To the main burner stretched into rotary kiln, during work, material is entered by rotary kiln, from kiln after reduction roasting in rotary kiln Head exit drops out, and carries out next technique.Ferronickel production technology is upgraded to back by traditional rotary kiln-mineral hot furnace-converter smelting process After rotary kiln direct-reduction process, technological requirement is answered, ignition temperature is greatly improved in rotary kiln, then, kiln hood is near kiln head box part Dorsad main burner flame direction, temperature is all compared to relatively low, it is impossible to ensure the temperature that production needs, and easily causes roasting in rotary kiln Molten iron ring formation, yield reduction, and utilization rate of equipment and installations, the waste of labour.

The content of the invention

The purpose of this utility model is to provide a kind of rotary kiln.

Realizing the technical scheme of the utility model purpose is, a kind of rotary kiln, including rotary kiln body and is located at turn around The kiln head box of sealing process is played at kiln body kiln hood, main burner has been fastened on kiln head box, the combustion head of main burner is located at back In rotary kiln body, concurrent heating burner is also fastened on the lateral wall of kiln head box, concurrent heating burner is not higher by kiln head box lateral wall inner surface.

Further, concurrent heating burner is located at kiln head box just on the lateral wall of kiln hood.In this way, the flame of concurrent heating burner spray combustion It is just even sprayable to kiln hood in reduction roasting in rotary kiln body, is sufficiently used for, fire heat utilization efficiency high.

Further, concurrent heating burner medial end surface flushes with kiln head box lateral wall inner surface.To ensure rotary kiln sheet The molten iron of roasting is dropped out by kiln hood in vivo, and while will not causing to damage to concurrent heating burner, concurrent heating burner can be closer to rotary kiln Body kiln hood, improves combustion heat utilization efficiency.

The utility model rotary kiln, installs the concurrent heating burner for not being higher by its inner surface, with true on the lateral wall of kiln head box The molten iron for protecting roasting in rotary kiln body is dropped out by kiln hood, while concurrent heating burner is not damaged, is realized to rotary kiln body kiln hood The heating at place, its simple structure effectively prevent because temperature is too low at rotary kiln body kiln hood, and cause molten iron ring formation, yield The phenomenon of reduction.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model rotary kiln.

Specific embodiment

As shown in figure 1, a kind of rotary kiln, including rotary kiln body 1 and it is located at turn around playing closing at kiln body kiln hood 11 The kiln head box 2 of effect, has fastened main burner 3 on kiln head box 2, the fire end 31 of main burner 3 is located at turn around in kiln body 1, Concurrent heating burner 4 is also fastened on the lateral wall of kiln head box 2, concurrent heating burner 4 is not higher by the lateral wall inner surface of kiln head box 2.Concurrent heating is burnt Mouth 4 is located at kiln head box 2 just on the lateral wall of kiln hood 11.The medial end surface of concurrent heating burner 4 and the lateral wall inner surface of kiln head box 2 Flush.

The utility model rotary kiln, concurrent heating burner 4 is used to being heated at rotary kiln body kiln hood 11；Concurrent heating burner 4 Inside end is not higher by the lateral wall inner surface of kiln head box 2, to prevent the molten iron dropped out by kiln hood 11 in rotary kiln body 1 from smashing, And greatly shortening the service life of concurrent heating burner 4, i.e., the structure can use with ensuring concurrent heating burner 4.

The utility model rotary kiln, installs the concurrent heating burner 4 for not being higher by its inner surface on the lateral wall of kiln head box 2, with Ensure that the molten iron of roasting in rotary kiln body 1 is dropped out by kiln hood 11, while concurrent heating burner 4 is not damaged, realize to rotary kiln sheet Heating at body kiln hood 11, its simple structure effectively prevent because temperature is too low at rotary kiln body kiln hood 11, and cause molten iron Ring formation, the phenomenon that yield is reduced.

The utility model rotary kiln, for the flame for making concurrent heating burner 4 spray combustion is sufficiently used for reduction roasting, improves combustion heat utilization Rate, it is preferred that concurrent heating burner 4 is located at kiln head box 2 just on the lateral wall of kiln hood 11；To ensure roasting in rotary kiln body 1 Molten iron is dropped out by kiln hood 11, and while will not causing to damage to concurrent heating burner 4, concurrent heating burner 4 can be closer to rotary kiln body kiln First 11, combustion heat utilization efficiency is improved, it is preferred that the medial end surface of concurrent heating burner 4 flushes with the lateral wall inner surface of kiln head box 2.

The utility model rotary kiln, the air hose of connection, Gas Pipe are essential needed for the burning that concurrent heating burner 4 is completed, But category prior art, the utility model is no longer illustrated.

Claims

1. a kind of rotary kiln, including rotary kiln body and be located at turn around at kiln body kiln hood rise sealing process kiln head box, kiln Main burner is fastened in head case, the combustion head of main burner is located at turn around in kiln body, it is characterised in that：The outside of kiln head box Concurrent heating burner is also fastened on wall, concurrent heating burner is not higher by kiln head box lateral wall inner surface.

2. rotary kiln according to claim 1, it is characterised in that：Concurrent heating burner is located at kiln head box just to the lateral wall of kiln hood On.

3. rotary kiln according to claim 1, it is characterised in that：Concurrent heating burner medial end surface and kiln head box lateral wall Inner surface is flushed.