CN212205644U - External combustion type light-burning shaft kiln with supporting device - Google Patents

Abstract

The patent of the utility model relates to a take strutting arrangement's external combustion formula light-burning shaft kiln, its structure specifically includes kiln body, a supporting beam, hot flue gas hole, combustion chamber, combustion-supporting air pipeline and gas pipeline. The kiln lining and the combustion chamber of the kiln body are built by adopting the firing refractory bricks, the hot flue gas holes are built by adopting a casting forming mode, and the supporting beams are built by adopting the firing refractory bricks and the casting composite forming mode. The external combustion type light-burning shaft kiln supporting device designed by the utility model is high temperature resistant, high temperature strength, smoke and material erosion resistant; the supporting device adopts a fired brick and pouring composite molding mode, has strong integrity and low air leakage rate, and cannot cause environmental pollution; after the combustion-supporting air pipeline and the gas pipeline enter the combustion chamber, the combustion process is carried out at the rear side of the supporting beam of the supporting device and does not directly face to the hot flue gas hole, so that the direct scouring of the flue gas hole can be reduced.

Description

External combustion type light-burning shaft kiln with supporting device

Technical Field

The patent of the utility model relates to a refractory material production facility field, concretely relates to take strutting arrangement's external combustion formula light-burning shaft kiln.

Background

The external combustion type light-burning shaft kiln has the advantages of large scale, energy saving, environmental protection and the like. The materials in the combustion zone of the external combustion type light-burning shaft kiln are uniformly heated, hot smoke gas uniformly passes through the material layer, and the product quality is good; the external combustion type light-burning shaft kiln can design the capacity according to the inner diameter of the kiln, so that the large-scale advantage is particularly remarkable, and the production capacity of light-burning products can reach 500 tons/day; the external combustion type light-burning shaft kiln adopts an external combustion type burning method, the burning method can ensure that gas and combustion-supporting air are uniformly mixed, so that the fuel is fully burnt, the energy consumption is controlled below 250kg standard coal/ton product, the product energy consumption is low, and the energy-saving effect is obvious.

The core of the external combustion type light-burning shaft kiln is an external combustion chamber and a supporting device thereof, wherein the external combustion chamber is parallel to a combustion zone and is connected with the combustion zone through a hot flue gas hole, and the flue gas hole simultaneously bears high temperature, high pressure and the scouring action of flue gas and materials, so that the supporting device is required to have good fire resistance, high-temperature mechanical property and wear resistance. At present, the research related to the external combustion type light-burning shaft kiln is still in the beginning stage, so the preparation mechanism and the development of related devices need to be further researched.

Disclosure of Invention

In order to solve the problem, the utility model provides a take strutting arrangement's external combustion formula light-burned shaft kiln adopts baked brick and pouring structure composite forming mode, improves the wholeness, improves performances such as high temperature resistance, high temperature strength, resistant flue gas and material erode.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that:

an external combustion type light-burning shaft kiln with a supporting device is characterized by comprising a kiln body, a supporting beam, a hot flue gas hole, a gas pipeline, a combustion-supporting air pipeline and a combustion chamber; the kiln body lateral wall middle part sets up hot flue gas hole, and hot flue gas hole top all is equipped with a supporting beam, and the combustion chamber encircles in kiln body outer wall middle part, communicates with each other with hot flue gas hole, and the combustion chamber top is equipped with the circular port, and the circular port communicates with each other with gas pipeline and combustion-supporting air pipeline, hot flue gas hole is casting shaping mode masonry structure, and kiln body inside kiln lining and combustion chamber adopt to burn to fire a type of resistant firebrick masonry structure, and it is filled with the fire clay to burn to type of resistant firebrick masonry seam, and kiln body and combustion chamber outside adopt the steel-shelled structure.

4-12 hot flue gas holes are formed in the middle of the side wall of the kiln body, and the hot flue gas holes are evenly distributed in the circumferential direction.

The supporting beam adopts a composite masonry structure consisting of a fired refractory brick and a pouring structure.

The top of the combustion chamber is provided with 4-12 circular holes which are communicated with a gas pipeline and a combustion air pipeline and have the same number.

The combustion chamber is a positive pressure combustion chamber.

Compared with the prior art, the beneficial effects of the utility model are that: 1) the external combustion type light-burning shaft kiln with the supporting device has high temperature resistance, high-temperature strength and resistance to smoke and material scouring; 2) the supporting device adopts a composite molding mode of fired bricks and a pouring structure, has strong integrity and low air leakage rate, and cannot cause environmental pollution; 3) after the combustion-supporting air pipeline and the gas pipeline enter the combustion chamber, the combustion process is carried out at the rear side of the supporting beam of the supporting device and does not directly face to the hot flue gas hole, so that the direct scouring of the flue gas hole is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: 1-kiln body, 2-supporting beam, 3-hot flue gas hole, 4-gas pipeline, 5-combustion air pipeline and 6-combustion chamber.

Detailed Description

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of an external combustion type light-burning shaft kiln with a supporting device according to an embodiment of the present invention, and the external combustion type light-burning shaft kiln is composed of a kiln body 1, a supporting beam 2, a hot flue gas hole 3, a gas pipeline 4, a combustion air pipeline 5 and a combustion chamber 6; set up hot flue gas hole 3 in the middle part of the 1 lateral wall of kiln body, 3 tops in hot flue gas hole all are equipped with a supporting beam 2, combustion chamber 6 encircles at 1 outer wall middle part of kiln body, communicate with each other with hot flue gas hole 3, 6 tops in combustion chamber are equipped with the circular port, the circular port communicates with each other with gas pipeline 4 and combustion-supporting air pipeline 5, hot flue gas hole 3 adopts the casting shaping mode to build by laying bricks or stones, 1 inside kiln lining of kiln body and combustion chamber 6 adopt the firebrick masonry structure of the type of burning, the type of burning firebrick masonry seam of type adopts the fire clay to fill, kiln body 1 and 6 outsides of combustion chamber.

4-12 hot flue gas holes 3 are arranged in the middle of the side wall of the kiln body 1, and the hot flue gas holes 3 are uniformly distributed in the circumferential direction.

The supporting beam 2 is built by adopting a composite forming mode of sintering refractory bricks and pouring.

4-12 circular holes are arranged at the top of the combustion chamber 6, and the number of the circular holes is the same as that of the circular holes communicated with the gas pipeline 4 and the combustion air pipeline 5. The combustion chamber 6 is a positive pressure combustion chamber.

The building method of the external combustion type light-burning shaft kiln comprises the following steps:

1) building a support beam 2 by using refractory bricks above a kiln lining refractory material of a cooling zone, designing 4-12 hot flue gas holes 3 in a burning zone, casting the support beam 2 on the hot flue gas holes 3 by using a casting material, and maintaining for 24-48 hours after the support beam 2 is built; building the combustion chamber 6 and the supporting beam 2 at the same time, wherein the combustion chamber 6 is built by adopting burning-type refractory bricks, the seams of the burning-type refractory bricks are filled with fire clay, and the exterior of the burning-type refractory bricks adopts a steel shell structure;

2) and after the maintenance of the support beam 2 is finished, the support beam is continuously built upwards, and the top of the combustion chamber 6 is built in a pouring forming mode and maintained for 24-48 hours. In the masonry process, the number of inlets of the combustion air pipelines 5 and the gas pipelines 4 is the same as that of the hot flue gas holes 3, and the inlets of the combustion air pipelines 5 and the gas pipelines 4 are positioned on the rear side of the vertical supporting beam of the supporting device and do not directly face the hot flue gas holes 3.

3) And after the top of the combustion chamber 6 is cured, installing a combustion-supporting air pipeline 5 and a gas pipeline 4, and finishing the building of the external combustion type light-burning shaft kiln supporting device. And (4) after the external combustion type light-burning shaft kiln supporting device and the preheating zone are built, the kiln drying test can be carried out.

Claims (5)

1. An external combustion type light-burning shaft kiln with a supporting device is characterized by comprising a kiln body (1), a supporting beam (2), a hot flue gas hole (3), a gas pipeline (4), a combustion-supporting air pipeline (5) and a combustion chamber (6); kiln body (1) lateral wall middle part sets up hot flue gas hole (3), and hot flue gas hole (3) top all is equipped with a supporting beam (2), and combustion chamber (6) encircle at kiln body (1) outer wall middle part, communicate with each other with hot flue gas hole (3), and combustion chamber (6) top is equipped with the circular port, and the circular port communicates with each other with gas pipeline (4) and combustion-supporting air pipeline (5), hot flue gas hole (3) are casting shaping mode masonry structure, and kiln body (1) inside kiln lining and combustion chamber (6) adopt to burn to type of firebrick masonry structure, and it is filled with the fire clay to burn to type of firebrick masonry seam, and kiln body (1) and combustion chamber (6) outside adoption steel casing structure.

2. The external combustion type light-burning shaft kiln with the supporting device according to claim 1, characterized in that 4-12 hot flue gas holes (3) are arranged in the middle of the side wall of the kiln body (1), and the hot flue gas holes (3) are uniformly distributed in the circumferential direction.

3. The external combustion type light-burning shaft kiln with the supporting device according to claim 1, characterized in that the supporting beam (2) is a composite masonry structure composed of fired refractory bricks and a casting structure.

4. The external combustion type light-burning shaft kiln with the supporting device according to claim 1, characterized in that the top of the combustion chamber (6) is provided with 4-12 circular holes which are communicated with the gas pipeline (4) and the combustion air pipeline (5) and have the same number.

5. An external combustion light-burning shaft kiln with a supporting device according to claim 1, characterized in that the combustion chamber (6) is a positive pressure combustion chamber.

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