CN218210673U

CN218210673U - Kiln body structure of energy-saving shaft kiln

Info

Publication number: CN218210673U
Application number: CN202221711240.9U
Authority: CN
Inventors: 薛军柱; 陈要生; 夏柏良; 邬晓滢
Original assignee: Zhejiang Zili Advanced Materials Co ltd
Current assignee: Zhejiang Zili Advanced Materials Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2023-01-03
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a kiln body structure of an energy-saving shaft kiln, which comprises a kiln body calcining area and is characterized in that the kiln body calcining area comprises a multilayer structure kiln wall and a firing product channel, the firing product channel is positioned at the central part of the kiln body calcining area, the multilayer structure kiln wall is a heat insulating layer, a heat insulating layer and a working layer from a cold end to a hot end in turn, and the working layer is a working layer formed by integral pouring construction of high-purity corundum castable material; the heat-insulating layer is formed by building and constructing a shaped light material; the heat insulation layer is formed by masonry construction of a shaped nano heat insulation material. The utility model provides a pair of kiln body structure of energy-conserving shaft kiln can effective energy saving and consumption reduction, obviously reduces the construction amount of labour, improves the efficiency of construction, convenient construction.

Description

Kiln body structure of energy-saving shaft kiln

Technical Field

The utility model relates to a high-temperature shaft kiln preparation technology, in particular to a kiln body structure of an energy-saving shaft kiln.

Background

The high-temperature kiln is specially applied to the field of high-temperature firing, heat sources comprise electricity, natural gas, oil and the like, different kiln lining structures are designed according to different heat sources, so that different construction methods are adopted, the service life is prolonged, energy is saved, consumption is reduced, and the final construction methods of different designs are different.

In particular, in high temperature kilns used in large-scale industrial production, such as high temperature shaft kilns, the lining of the kiln body is usually made of a heat insulation layer and a working layer, and in order to ensure the stable performance of the lining material of the kiln, the working layer is usually built by adopting materials with high temperature folding resistance and thermal shock stability, but the method can cause slow building construction process, large labor capacity, unfavorable production, poor heat insulation and much heat loss, for example, chinese patent 201CN 327290Y discloses an environment-friendly high temperature shaft kiln, wherein the lining of the working layer in the calcining area of the high temperature shaft kiln is built by adopting large crystal magnesia bricks.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of the prior art, providing a kiln body structure of an energy-saving shaft kiln, which can effectively save energy and reduce consumption, obviously reduce the construction labor amount and improve the construction efficiency.

In order to achieve the purpose, the utility model relates to a kiln body structure of energy-conserving shaft kiln, including the kiln body calcination district, characterized by that the kiln body calcination district includes multilayer structure kiln wall and burnt product passageway, and the burnt product passageway is located the central part in kiln body calcination district, multilayer structure kiln wall is heat insulation layer, heat preservation and working layer from cold junction to hot junction in proper order, the working layer is the working layer that the construction of the whole pouring of a high-purity corundum material castable constitutes; the heat-insulating layer is formed by building and constructing a shaped light material; the heat insulation layer is formed by building and constructing a shaped nano heat insulation material, and a light magnesium-silicon heat insulation board can be adopted; the kiln body calcining area is provided with a fixing device for fixing the burner, the burner is fixedly installed on the fixing device, a nozzle of the burner is introduced into the fired product channel, gas enters the fired product channel through burning of the burner, and the outermost side of the kiln body calcining area is coated with a kiln body shell coated with carbon steel plate materials.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

In order to increase the stability of the lining material in a thermal state, a second heat-insulating layer made of light materials or compact materials through masonry construction is further arranged on one side of the heat-insulating layer, which is lateral to the working layer. The fired product channels may be of circular configuration.

In order to know and control the calcining temperature of the calcining zone in the kiln in time, a temperature sensor can be arranged on the calcining zone of the kiln body.

The utility model provides a pair of kiln body structure of energy-conserving shaft kiln can effective energy saving and consumption reduction, obviously reduces the construction amount of labour, improves the efficiency of construction, convenient construction. Particularly, the design of the working layer ensures the volume stability and the wear resistance of the lining in a high-temperature state; the design of the heat insulation layer reduces the weight of the lining and the heat conduction of materials in the kiln; the design of the heat insulating layer has the functions of isolating heat loss, reducing the temperature of the steel shell of the kiln body, protecting the kiln body, saving energy and reducing consumption.

Drawings

FIG. 1 is a schematic view of the kiln body structure of an energy-saving shaft kiln.

Wherein: the device comprises a heat insulation layer 1, a heat insulation layer 2, a second heat insulation layer 3, a burner 4, a working layer 5, a kiln body calcining area 6, a kiln body shell 61, a calcined product channel 7, a fixing device 8, a nozzle 9 and a temperature sensor 10.

Detailed Description

The present invention is further described by way of examples with reference to the accompanying drawings, and the described examples are only for the purpose of helping those skilled in the art to further understand the essential contents of the present invention, and are not all embodiments of the present invention.

Example 1:

as shown in fig. 1, the kiln body structure of the energy-saving shaft kiln provided in this embodiment includes a kiln body calcining region 6, where the kiln body calcining region 6 includes a kiln wall with a multilayer structure and a fired product channel 7, the fired product channel 7 is located at a central portion of the kiln body calcining region, the kiln wall with the multilayer structure is sequentially provided with a heat insulating layer 1, a heat insulating layer 2 and a working layer 5 from a cold end to a hot end, the working layer 5 is a working layer formed by integrally pouring a high-purity corundum castable material, and the working layer 5 ensures stable volume and wear resistance of the lining at a high temperature; the heat-insulating layer 2 is formed by building and constructing a shaped light material so as to reduce the weight of the lining and the heat conduction of materials in the kiln; the heat insulation layer 1 is formed by masonry construction of a shaped nano heat insulation material, and the heat insulation layer formed by masonry construction of a light magnesium silicon heat insulation board material is adopted in the embodiment, so that the heat loss is isolated, the temperature of a steel shell of a kiln body is reduced, the kiln body is protected, and the energy is saved and the consumption is reduced; be equipped with the fixing device 8 of fixed nozzle 4 on kiln body calcination district 6, nozzle 4 fixed mounting is on fixing device 8 to in the spout 9 of nozzle 4 lets in the product passageway 7 of firing into, during gas got into the product passageway 7 of firing into through the burning of nozzle 4, the outside cladding of kiln body calcination district 6 has kiln body shell 61 that the carbon steel sheet material wrapped up.

The kiln body structure of energy-conserving shaft kiln that this embodiment provided can effective energy saving and consumption reduction, obviously reduces construction labor volume, improves the efficiency of construction, convenient construction.

Example 2:

according to the kiln body structure of the energy-saving shaft kiln, a second heat insulation layer 3 made of light materials or compact materials through masonry construction is further arranged on one side, towards the working layer, of the heat insulation layer 2 on the basis of the embodiment 1, so that the stability of the lining material in a thermal state is improved, and the effects of saving energy and reducing consumption are further achieved. In addition, the burnt product channel 7 can be of a circular structure, and a temperature sensor 10 can be arranged on the kiln body calcination area 6 and used for measuring or controlling the calcination temperature of the calcination area in the kiln.

Claims

1. A kiln body structure of an energy-saving shaft kiln comprises a kiln body calcining area (6), and is characterized in that the kiln body calcining area (6) comprises a multilayer structure kiln wall and a fired product channel (7), the fired product channel (7) is positioned in the center of the kiln body calcining area, the multilayer structure kiln wall is provided with a heat insulating layer (1), a heat insulating layer (2) and a working layer (5) from a cold end to a hot end in sequence, and the working layer (5) is formed by integral casting construction of a high-purity corundum castable; the heat-insulating layer (2) is formed by building and constructing a shaped light material; the heat insulation layer (1) is formed by building construction of a shaped nano heat insulation material; be equipped with fixing device (8) of fixed nozzle (4) on kiln body calcining zone (6), nozzle (4) fixed mounting is on fixing device (8) to in spout (9) of nozzle (4) let in product calcination product passageway (7), during gas passes through nozzle (4) burning entering calcination product passageway (7), the outside cladding in kiln body calcining zone (6) has kiln body shell (61) that the carbon steel plate material wrapped up.

2. The kiln body structure of the energy-saving shaft kiln as claimed in claim 1, wherein a second insulating layer (3) made of light materials or compact materials through masonry construction is further arranged on one side of the insulating layer (2) which is lateral to the working layer.

3. The shaft structure of an energy-saving shaft kiln as claimed in claim 1 or 2, wherein the fired product passage (7) is of a circular structure.

4. The kiln body structure of the energy-saving shaft kiln as claimed in claim 1 or 2, wherein a temperature sensor (10) is further arranged on the calcining zone (6) of the kiln body.