A burner structure of a high-purity magnesia sintering kiln

Abstract

The utility model discloses a kind of burner structures of high-purity magnesia sintering kiln, it is related to kiln technical field, including mounting ring, the outside of mounting ring is fixedly connected with mounting frame in annular arrangement mode, the side fixedly connected with burner body of mounting frame, the output end of burner body is movably penetrated in the inside of mounting frame.The utility model heats heating groove by burner body, removes residual moisture, carbonate in high-purity magnesia, while electric push rod drives mounting ring and burner body to carry out height reciprocating adjustment, so that heating groove is evenly heated, avoid local overheating or heating insufficient condition, to reduce the cracking, pulverization etc. Loss that high-purity magnesia is generated due to uneven heating, improve raw material utilization rate, simultaneously, uniform high-temperature environment can ensure that residual moisture and carbonate are completely decomposed, avoid impurity residue influence product purity.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, and in particular to a burner structure for a high-purity magnesia sintering kiln. Background Technology

[0002] The burner structure of a high-purity magnesia sintering kiln refers to a device system designed to meet the requirements of temperature uniformity, combustion efficiency, and atmosphere control during the high-temperature sintering process of high-purity magnesia. It is used to mix, inject, and stabilize the combustion of fuel and combustion air. By optimizing the channel size, airflow velocity, and mixing ratio, it ensures complete combustion of fuel, provides a stable high-temperature heat source for the kiln that meets the process requirements, and reduces harmful emissions, thus adapting to the strict requirements for product purity and performance in the production of high-purity magnesia.

[0003] During kiln operation, when the burner heats the ore by injecting flames, there is a problem with the heating point being fixed. To achieve uniform heating of the ore, it is necessary to add multiple combustion nozzles to achieve multi-point heating. However, this solution of adding combustion nozzles directly increases the equipment cost of the kiln. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the cost of kiln equipment increases accordingly by adding multiple combustion nozzles to achieve multi-point heating, and to propose a burner structure for a high-purity magnesia sintering kiln.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a burner structure for a high-purity magnesia sintering kiln, comprising a mounting ring, wherein a mounting frame is fixedly connected to the outer side of the mounting ring in a ring arrangement, a burner body is fixedly connected to one side of the mounting frame, the output end of the burner body movably penetrates the interior of the mounting frame, an electric push rod is centrally symmetrically arranged on the outer side of the mounting ring, a transfer frame is fixedly connected to the drive end of the electric push rod, and the other side of the transfer frame is fixedly connected to the outer side of the mounting ring.

[0006] Preferably, the input end of the burner body is fixedly connected to a gas delivery pipeline, and the input end of the gas delivery pipeline is fixedly connected to an electrically controlled valve.

[0007] Preferably, the electrically controlled valve is fixedly installed on the outside of the mounting ring.

[0008] Preferably, a heat insulation baffle is fixedly connected to one side of the adapter frame.

[0009] Preferably, the outer side of the heat insulation baffle is coated with a heat insulation coating.

[0010] Preferably, a heat-absorbing layer is fixedly bonded to the inner side of the heat insulation baffle.

[0011] Preferably, a furnace body is provided on the outer side of the mounting ring, a heating groove is fixedly installed at the center of the furnace body, and the output end of the burner body faces the outer side of the heating groove.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this invention, the heating tank is heated by the burner body to remove residual moisture and carbonates from the high-purity magnesia. Simultaneously, an electric push rod drives the mounting ring and burner body to reciprocate in height adjustment, ensuring uniform heating of the heating tank and preventing localized overheating or underheating. This reduces losses such as cracking and pulverization of the high-purity magnesia due to uneven heating, thus improving raw material utilization. Furthermore, the uniform high-temperature environment ensures the complete decomposition of residual moisture and carbonates, preventing impurities from affecting product purity.

[0013] 2. In this utility model, by adding a heat insulation baffle on one side of the electric push rod, the operational stability and energy efficiency of the entire device are further improved. The heat insulation coating on the outside of the heat insulation baffle can effectively block the high-temperature radiation conducted by the heating tank, avoid the electric push rod from being in a high-temperature environment for a long time, which can lead to mechanical component aging, circuit short circuit and other faults, significantly extend the service life of the equipment, and reduce the maintenance frequency and cost. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of the burner structure of a high-purity magnesia sintering kiln is provided for this utility model. Figure 2 This utility model provides a schematic diagram of the connection relationship between the mounting ring and the burner body in the burner structure of a high-purity magnesia sintering kiln. Figure 3 This utility model provides a schematic diagram of the connection relationship between the mounting ring and the electric push rod in the burner structure of a high-purity magnesia sintering kiln. Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0015] Legend: 1. Mounting ring; 11. Mounting bracket; 2. Burner body; 21. Gas transmission pipeline; 22. Electrically controlled valve; 3. Electric push rod; 31. Adapter bracket; 4. Heat insulation baffle; 5. Furnace body; 51. Heating tank. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a burner structure for a high-purity magnesia sintering kiln, including a mounting ring 1. A mounting frame 11 is fixedly connected to the outer side of the mounting ring 1 in a ring arrangement. A burner body 2 is fixedly connected to one side of the mounting frame 11. The output end of the burner body 2 is movably inserted through the interior of the mounting frame 11. An electric push rod 3 is centrally symmetrically arranged on the outer side of the mounting ring 1. A transition frame 31 is fixedly connected to the driving end of the electric push rod 3. The other side of the transition frame 31 is fixedly connected to the outer side of the mounting ring 1. A gas supply pipe 21 is fixedly connected to the input end of the burner body 2. An electric control valve 22 is fixedly installed on the outer side of the mounting ring 1. A kiln body 5 is arranged on the outer side of the mounting ring 1. A heating groove 51 is fixedly installed at the center of the kiln body 5. The output end of the burner body 2 faces the outer side of the heating groove 51.

[0019] The specific setup and function of this embodiment are described below. High-purity magnesia is fed into the heating tank 51, and the electrically controlled valve 22 is opened. Natural gas is supplied to the burner body 2 through the gas delivery pipeline 21. The burner body 2 heats the heating tank 51 to remove residual moisture and carbonates from the high-purity magnesia. Simultaneously, the electric push rod 3 drives the mounting ring 1 and the burner body 2 to reciprocate in height, ensuring uniform heating of the heating tank 51 and avoiding localized overheating or underheating. This reduces losses such as cracking and pulverization of the high-purity magnesia due to uneven heating, improving raw material utilization. Furthermore, the uniform high-temperature environment ensures the complete decomposition of residual moisture and carbonates, preventing impurities from affecting product purity. In addition, stable and comprehensive heating promotes the initial sintering of magnesia particles, laying a good foundation for crystal growth and densification in the subsequent high-temperature sintering stage, which helps improve the final product's bulk density, compressive strength, and other physical properties. The outer side of the gas delivery pipeline 21 is provided with a heat-insulating protective layer by wrapping. This protective layer possesses excellent thermal barrier properties, effectively reducing the conductive and radiative effects of the high-temperature environment inside the kiln on the pipeline body. This ensures the pipeline maintains stable operation under complex conditions and avoids adverse interference to the pipeline's structural integrity and transportation safety caused by temperature fluctuations. The end of the electric push rod 3 furthest from the adapter frame 31 is fixed to the support frame inside the workshop, providing stable support for the electric push rod 3.

[0020] Example 2: Figure 1 - Figure 4As shown, the burner structure of the high-purity magnesia sintering kiln of this utility model includes a mounting ring 1. A mounting frame 11 is fixedly connected to the outer side of the mounting ring 1 in a ring arrangement. A burner body 2 is fixedly connected to one side of the mounting frame 11. The output end of the burner body 2 movably passes through the interior of the mounting frame 11. An electric push rod 3 is arranged in a centrally symmetrical manner on the outer side of the mounting ring 1. A transfer frame 31 is fixedly connected to the driving end of the electric push rod 3. The other side of the transfer frame 31 is fixedly connected to the outer side of the mounting ring 1. A heat insulation baffle 4 is fixedly connected to one side of the transfer frame 31. The outer side of the heat insulation baffle 4 is coated with a heat insulation coating. A heat absorption layer is fixedly bonded to the inner side of the heat insulation baffle 4.

[0021] The overall effect of this embodiment is that by adding a heat insulation baffle 4 to one side of the electric push rod 3, the operational stability and energy efficiency of the entire device are further improved. The heat insulation coating on the outside of the heat insulation baffle 4 can effectively block the high-temperature radiation conducted by the heating tank 51, avoiding mechanical component aging, circuit short circuits and other faults caused by the electric push rod 3 being in a high-temperature environment for a long time, significantly extending the service life of the equipment, reducing maintenance frequency and cost. The heat absorption layer on the inside can absorb the dissipated heat and reduce heat loss. The stable equipment operation can ensure the continuity of the high-purity magnesia heating process, reduce production interruptions caused by equipment failure, and ensure the quality stability and production efficiency of high-purity magnesia from multiple dimensions.

[0022] The method of use and working principle of this device: High-purity magnesia sand is fed into the interior of the heating tank 51, the electric control valve 22 is opened, and natural gas is transported to the interior of the burner body 2 through the gas transmission pipeline 21. The burner body 2 heats the heating tank 51 to remove residual moisture and carbonates from the high-purity magnesia sand. At the same time, the electric push rod 3 drives the mounting ring 1 and the burner body 2 to perform height reciprocating adjustment, so that the heating tank 51 is heated evenly.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A burner structure for a high-purity magnesia sintering kiln, comprising an mounting ring (1), characterized in that: The mounting ring (1) is fixedly connected to the mounting bracket (11) in a ring arrangement on the outside. The burner body (2) is fixedly connected to one side of the mounting bracket (11). The output end of the burner body (2) moves through the inside of the mounting bracket (11). The mounting ring (1) is centrally symmetrically provided with an electric push rod (3). The drive end of the electric push rod (3) is fixedly connected to an adapter (31). The other side of the adapter (31) is fixedly connected to the outside of the mounting ring (1).

2. The burner structure of a high-purity magnesia sintering kiln according to claim 1, characterized in that: The burner body (2) is fixedly connected to a gas delivery pipe (21) at its input end, and an electric control valve (22) is fixedly connected to the input end of the gas delivery pipe (21).

3. The burner structure of a high-purity magnesia sintering kiln according to claim 2, characterized in that: The electrically controlled valve (22) is fixedly installed on the outside of the mounting ring (1).

4. The burner structure of a high-purity magnesia sintering kiln according to claim 1, characterized in that: A heat insulation baffle (4) is fixedly connected to one side of the adapter (31).

5. The burner structure of a high-purity magnesia sintering kiln according to claim 4, characterized in that: The outer side of the heat insulation baffle (4) is coated with a heat insulation coating.

6. The burner structure of a high-purity magnesia sintering kiln according to claim 4, characterized in that: The heat-absorbing layer is fixedly bonded to the inner side of the heat insulation baffle (4).

7. The burner structure of a high-purity magnesia sintering kiln according to claim 1, characterized in that: A furnace body (5) is provided on the outside of the mounting ring (1), and a heating groove (51) is fixedly installed at the center of the furnace body (5). The output end of the burner body (2) is directly opposite the outside of the heating groove (51).

Images