CN218627702U

CN218627702U - Temperature measuring device of external heating type rotary furnace

Info

Publication number: CN218627702U
Application number: CN202222474415.5U
Authority: CN
Inventors: 刘庆德; 刘希婧; 李新; 崔贵全; 徐强; 刘旭宁
Original assignee: Huizhi Engineering Technology Co ltd
Current assignee: Huizhi Engineering Technology Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-14
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a temperature measuring device of external heating type rotary furnace, it belongs to the temperature detection field, and it is inaccurate that it has solved temperature detection among the prior art, and the sleeve pipe is easily by the cracked problem of material winding. The temperature measuring device mainly comprises a furnace tube, wherein a temperature measuring module is arranged on the furnace tube and comprises a wireless transmitter, a protective sleeve and a thermocouple, the protective sleeve is fixed on the inner wall of the furnace tube, the thermocouple is arranged in the protective sleeve, the wireless transmitter comprises a transmitter and a connector, the transmitter is fixed on the inner wall of the furnace tube, the connector penetrates through the outer wall of the furnace tube and the protective sleeve, and the connector is connected with the thermocouple through a wire. The utility model discloses can effectively promote the accuracy to temperature detection in the rotary furnace working process, effectively promote system's response speed.

Description

Temperature measuring device of external heating type rotary furnace

Technical Field

The utility model relates to a temperature monitoring device, specifically speaking especially relates to a temperature measuring device of external heating formula rotary furnace.

Background

Rotary kilns are thermal devices for calcining, roasting or drying granular and powdery materials. It is used in metallurgical industry for magnetizing and roasting lean iron ore, smelting Mg, cr and Ni-Fe ore by silicothermic process, and in refractory material plant. The rotary furnace has large volume, large temperature difference and low temperature control precision, so the monitoring of the temperature of the rotary furnace in the calcining process can be an important production process link. The temperature measuring devices in the prior art are two in number, one indirectly measures the temperature of the flue gas to control heating, but the defects are that the temperature of the flue gas can not reflect the temperature of materials, and accurate measurement can not be realized; another fishing rod type temperature measuring system can accurately measure the temperature, but a support rod in a pipe is extremely easy to be wound and broken by materials, and a broken sleeve is removed along with the materials, so that the equipment can be blocked; currently, a measuring device which is not easy to be wound by materials and can measure temperature more accurately is lacking.

Disclosure of Invention

The utility model aims at providing a temperature measuring device of external heating type rotary furnace has solved among the prior art temperature detection inaccurate, and the sleeve pipe is easily by the cracked problem of material winding.

The utility model discloses a realize through following technical scheme:

the utility model provides a temperature measuring device of external heating type rotary furnace, includes the boiler tube, and the boiler tube is fixed on the base, and the boiler tube both ends are boiler tube entry and boiler tube export, and the outer parcel of boiler tube keeps warm and covers, be equipped with temperature measurement module on the boiler tube, temperature measurement module includes wireless transmitter, protective case and thermocouple, wireless transmitter include transmitter and connector, the transmitter is fixed on the boiler tube outer wall, the connector passes the boiler tube outer wall and is connected with protective case, and protective case fixes on the boiler tube inner wall, is equipped with the thermocouple in the protective case, the thermocouple passes through the wire with wireless transmitter and is connected, and wireless transmitter gives the receiving terminal with real-time temperature transmission.

Furthermore, the two ends of the protective sleeve are closed, and the protective sleeve is welded on the inner wall of the furnace tube.

Further, the wireless transmitter is fixed at a position close to the inlet of the furnace tube, and a heat insulation layer is arranged between the wireless transmitter and the outer wall of the furnace tube.

Further, the heat insulation layer is aerogel felt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the thermocouple is arranged on the inner wall of the furnace through the protective sleeve, so that the accuracy of temperature detection in the working process of the rotary furnace can be effectively improved, and the response speed of the system is effectively improved.

2. The utility model discloses simple structure, protective case weld in the boiler tube inner wall, can avoid being cracked by the material winding.

Drawings

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

FIG. 2 is a sectional view of the furnace tube of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B of fig. 1.

In the figure: 1. a wireless transmitter; 2. a furnace tube inlet; 3. a heat-preserving cover; 4. a thermocouple; 5. a wire; 6. a furnace tube outlet; 7. A furnace tube; 8. a base; 9. a protective sleeve; 10. and a heat insulation layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Embodiment 1, a temperature measuring device of outer hot type rotary furnace, as shown in fig. 1, a temperature measuring device of outer hot type rotary furnace, including boiler tube 7, boiler tube 7 is fixed on base 8, and boiler tube 7 both ends are boiler tube entry 2 and boiler tube export 6, and boiler tube 7 skin parcel heat preservation cover 3, be equipped with temperature measurement module on the boiler tube 7, temperature measurement module includes wireless transmitter 1, protective case 9 and thermocouple 4, wireless transmitter 1 include transmitter and connector, and the transmitter is fixed on boiler tube 7 outer wall, the connector passes boiler tube 7 outer wall and is connected with protective case 9, and protective case 9 is fixed on boiler tube 7 inner wall, is equipped with thermocouple 4 in the protective case 9, thermocouple 4 passes through wire 5 with wireless transmitter 1 and is connected, and wireless transmitter 1 transmits real-time temperature for the receiving terminal, and the thermocouple is located on the furnace inner wall through the protective case, can effectively promote temperature detection's accuracy.

Embodiment 2 discloses a temperature measuring device for an externally heated rotary furnace, wherein 4 temperature measuring modules are provided, and the 4 temperature measuring modules are respectively positioned at four positions, namely, the upper position, the lower position, the left position and the right position, of the inner wall of a furnace tube 7, are used for measuring the temperature in the whole furnace and can be used for measuring the average value; the two ends of the protective sleeve 9 are fully welded to avoid medium leakage in the furnace, and the protective sleeve 9 is welded to the inner wall of the furnace tube 7 to avoid equipment clamping caused by winding of materials; the wireless transmitter 1 is fixed at a position close to the inlet of the furnace tube, and a heat insulation layer 10 is arranged between the wireless transmitter 1 and the outer wall of the furnace tube 7; the heat insulation layer 10 is made of aerogel felt, protects the wireless transmitter and prevents high temperature from influencing the operation of electronic equipment; the rest is the same as in example 1.

Thermocouple 4 fixes in the front end position of protective case 9, the inside temperature of real-time supervision boiler tube, and temperature data transmits for wireless transmitter 1 through the wire, and wireless transmitter 1 passes to the receiving terminal with data again, can effectively promote the accuracy to temperature detection in the rotary furnace working process, effectively promotes the response speed of system.

Claims

1. The utility model provides a temperature measuring device of external heating type rotary furnace, includes boiler tube (7), its characterized in that: be equipped with temperature measurement module on the boiler tube, temperature measurement module includes wireless transmitter (1), protective case (9) and thermocouple (4), protective case (9) are fixed on the inner wall of boiler tube (7), are equipped with thermocouple (4) in protective case (9), wireless transmitter include transmitter and connector, the transmitter is fixed on the inner wall of boiler tube (7), the connector passes boiler tube outer wall and protective case (9), the connector passes through wire (5) and is connected with thermocouple (4).

2. The temperature measuring apparatus of an externally heated rotary kiln according to claim 1, characterized in that: the two ends of the protective sleeve (9) are closed, and the protective sleeve (9) is welded on the inner wall of the furnace tube (7).

3. The temperature measuring apparatus of an externally heated rotary kiln according to claim 1, characterized in that: the wireless transmitter (1) is fixed at a position close to the furnace tube inlet (2), and a heat insulation layer (10) is arranged between the wireless transmitter (1) and the outer wall of the furnace tube (7).

4. The temperature measuring apparatus of an externally heated rotary kiln according to claim 3, characterized in that: the heat insulation layer (10) is made of aerogel felt.