Device for detecting oxygen content in light-burned magnesia rotary kiln body

By installing an oxygen content detection device inside the rotary kiln for lightly calcined magnesia, the problem of difficult monitoring of oxygen concentration inside the rotary kiln has been solved, achieving energy savings and pollution reduction, and improving production efficiency and environmental protection.

CN223597625UActive Publication Date: 2025-11-25HAICHENG GUANGDA HIGH PURITY MAGNESITE CO LTD
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Patent Information

Application Number
CN202422427760.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-11-25
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

In the process of lightly calcined magnesia sand, it is difficult to detect the oxygen content in the rotary kiln, which leads to energy waste and increased pollution emissions. Existing technologies cannot effectively control the combustion process, affecting production efficiency and environmental protection.

Method used

A device for detecting oxygen content inside a rotary kiln containing lightly calcined magnesia was designed. It consists of a sensor protection tube, a junction box, a standard gas port, a flange, an end plate, and a sensor probe. The device is fixedly connected via the flange, and the junction box is connected to a display device to achieve real-time monitoring and control of oxygen concentration inside the rotary kiln.

Benefits of technology

By monitoring the oxygen concentration inside the rotary kiln in real time, the combustion process can be optimized, energy can be saved, pollutant emissions can be reduced, and safe and efficient production control can be achieved, which is in line with the concept of green development.

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Patent Text Reader

Abstract

The utility model discloses a device for detecting oxygen content in a kiln body of a light-burned magnesia rotary kiln. The device comprises an oxygen analyzer, wherein the oxygen analyzer consists of a detection unit (oxygen probe) and a control unit (transmitter). Wherein the detection unit is arranged at the end part of the rotary kiln body, and the detector is composed of a sensing probe, a protection tube, a junction box, a standard gas port, a flange and other main components. The whole device is of a totally-closed structure, so that the sealing performance of the whole device is improved, and the service life is prolonged. The control unit is a terminal for a user to operate integrated functions and comprises an operation panel, a display interface and a current output port. The utility model discloses a device for detecting oxygen content in a light-burned magnesia rotary kiln body, relates to the technical field of rotary kiln oxygen content detection equipment, and aims to control the rotating speed of an air blower according to the oxygen content so as to achieve the purpose of controllable oxygen content. Therefore, energy is saved, and electric energy of enterprises can be saved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to light burning magnesium sand rotary kiln internal oxygen content detection device equipment technical field, especially light burning magnesium sand rotary kiln kiln body internal oxygen content detection device. BACKGROUND

[0002] In light burning magnesium oxide sand craft kiln body temperature reaches 700-2000 DEG C, rotary kiln operation, kiln cylinder surface temperature is high, and a large number of heat energy is directly emitted to the atmosphere. In order to detect the oxygen content in the rotary kiln, thereby controlling the kiln body temperature, the blower speed, which can reduce the production energy consumption, save production cost.

[0003] The oxygen content of the furnace is one of the important monitoring parameters of the furnace operation and an important basis for reflecting the perfect degree of the heating operation of the combustion equipment. The value is related to the structure of the furnace, the type and nature of the fuel, the size of the furnace load, the operating air distribution condition and the equipment sealing condition and other factors. The smaller the oxygen content, i.e. the smaller the excess air coefficient, the more the chemical incomplete combustion heat loss and the mechanical incomplete combustion heat loss; the larger the oxygen content, i.e. the larger the excess air coefficient, the more the air quantity sent. Excessive air causes the furnace temperature to drop, not only affecting combustion, but also taking away a large amount of heat and dust, increasing the calculation result of the pollution emission concentration, and the large air volume also increases the power consumption of the air supply system. Controlling the oxygen content of the furnace is of great significance for controlling the combustion process, achieving safety, high efficiency and low pollution emission. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a kind of light burning magnesium sand rotary kiln kiln body internal oxygen content detection devices, which can effectively solve the problems in the background art. To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: a kind of light burning magnesium sand rotary kiln kiln body internal oxygen content detection device is composed of sensor protection pipe, terminal box, gas mark port, flange, end plate, sensing probe, rotary furnace kiln cylinder.

[0005] A kind of light burning magnesium sand rotary kiln kiln body internal oxygen content detection device sensor protection pipe, terminal box and gas mark port, sensing probe are integrated device, which are installed on end plate by flange, and are fixed with end plate by bolt fastening. Terminal box is connected with display device by wire.

[0006] A kind of light burning magnesium sand rotary kiln kiln body internal oxygen content detection device is characterized by: sensing probe is protected by protection pipe, integrated by terminal box and gas mark port, and is fixedly connected together with end plate by flange.

[0007] Oxygen content detection device is connected with end plate by flange 4, and terminal box is connected with display device by wire.

[0008] The oxygen content detection device is an analyzer for monitoring and controlling the oxygen concentration of flue gas in a rotary kiln. It is widely used in industrial fields that require a large amount of energy. The application of the oxygen content detection device in a rotary kiln can help save energy and reduce pollutant emissions by controlling complete combustion, contributing to the protection of the earth's environment and the prevention of global warming and air pollution. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the oxygen content detection device in the rotary kiln body of light-burned magnesia.

[0010] Figure 2 It is a schematic diagram of the display screen of the oxygen content detection device in the rotary kiln body of light-burned magnesia.

[0011] Reference signs: 1 sensor protection tube, 2 junction box, 3 gas marking port, 4 flange, 5 end plate, 6 sensor probe, 7 rotary kiln cylinder, 8 display screen. DETAILED DESCRIPTION

[0012] The utility model aims at providing an oxygen content detection device in the rotary kiln body of light-burned magnesia.

[0013] The problems in the background art can be effectively solved. To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0014] The oxygen content detection device in the rotary kiln body of light-burned magnesia is composed of a sensor protection tube 1, a junction box 2, a gas marking port 3, a flange 4, an end plate 5, a sensor probe 6, and a rotary kiln cylinder 7.

[0015] The sensor protection tube 1, the junction box 2, and the gas marking port 3 of the oxygen content detection device in the rotary kiln body of light-burned magnesia form an integrated device with the sensor probe 6. The flange 4 is installed on the end plate 5 and fixed to the end plate 5 by bolt fastening. The junction box 2 is connected to the display device through wires.

[0016] The oxygen content detection device in the rotary kiln body of light-burned magnesia is characterized in that the sensor probe 6 is protected by the protection tube 1 and forms an integrated device with the junction box 2 and the gas marking port 3, and is fixedly connected to the end plate 5 through the flange 4.

[0017] The oxygen content detection device in the rotary kiln body of light-burned magnesia is characterized in that the oxygen content detection device is connected to the end plate 5 through the flange 4, and the junction box 2 is connected to the display device through wires.

[0018] A kind of light burning magnesia rotary kiln body oxygen content detection device, including oxygen analyzer is by detection unit (oxygen probe) and control unit (transmitter) is constituted. Among them, detection unit is installed at the end of rotary kiln body, detector is by sensing probe 6, sensor protection tube 1, terminal box 2 and main components such as gas port 3, flange 4 are formed. The whole device adopts fully enclosed structure, to increase the sealing performance of the whole device, improve service life. Control unit is the terminal of user operation integrated function, including operation panel, display interface and current output port.

[0019] The main detection part of the oxygen content detection device is installed in the furnace, and is fixed between the outside and the furnace by a mechanical structure. The oxygen content detection device is provided with a high-temperature resistant sensor installed in the furnace, which detects the oxygen concentration through the sensor, and then converts the oxygen content concentration information into a readable number on the display receiving screen of the control cabinet through the external signal system. The oxygen content sensor is provided with a metal sheath, and the bottom of the device is connected to the outer wall of the rotary kiln body through a flange.

[0020] The oxygen content detection device of the light burning magnesia rotary kiln body relates to the technical field of oxygen content detection equipment of rotary kiln. The oxygen content inside the rotary kiln is transmitted to the digital conversion system through sensing technology and digital technology. The oxygen content inside the light burning magnesia rotary kiln body is detected through display instruments and control cabinets, and the number can be read through the display screen.

[0021] The oxygen content inside the light burning magnesia rotary kiln body is detected, so that the operator can control the speed of the blower according to the increase of the oxygen content, so as to achieve the purpose of controllable air volume and controllable oxygen content. Thus, energy can be saved, and the quality of the product can be improved, which meets the green development concept.

Claims

1. A device for detecting the oxygen content in a rotary kiln body for the production of light burned magnesite, characterized in that It is composed of sensor protection tube (1), junction box (2), gas mark port (3), flange (4), end plate (5), sensor probe (6) and rotary kiln cylinder (7), the sensor protection tube (1), junction box (2) and gas mark port (3), sensor probe (6) are integrated into an integral device, which is installed on the end plate (5) through the flange (4) and is fixed with the end plate (5) through bolt fastening, the junction box (2) is connected with the display device through wires, the sensor probe (6) is protected by the protection tube (1) and is integrated into an integral device through the junction box (2) and gas mark port (3) and is fixedly connected with the end plate (5) through the flange (4), the oxygen content detection device is connected with the end plate (5) through the flange (4), and the junction box (2) is connected with the display device through wires.