CN-224215800-U - Wireless temperature measuring device suitable for high-temperature area of multi-metal smelting rotary kiln

CN224215800UCN 224215800 UCN224215800 UCN 224215800UCN-224215800-U

Abstract

The utility model discloses a wireless temperature measuring device suitable for a high-temperature area of a multi-metal smelting rotary kiln, which comprises a thermocouple, wherein a thermocouple protection sleeve is arranged outside the thermocouple, an outer protecting shell is arranged outside the thermocouple protection sleeve, a refractory filling material layer is arranged between the outer protecting shell and the thermocouple protection sleeve, the thermocouple protection sleeve is fixedly arranged on a rotary kiln shell, the outer protecting shell is fixedly arranged on a rotary kiln lining, the inner side end of the thermocouple protection sleeve is inserted into the inner side of the rotary kiln lining, a wireless temperature transmitter is detachably arranged at the outer end of the thermocouple protection sleeve, and a wireless transmitting module is arranged on the wireless temperature transmitter. The wireless temperature transmitter is matched with the wireless transmitting module and the wireless gateway to transmit the temperature detected by the thermocouple. The utility model has the corresponding outer protective shell, and is a wireless temperature measuring device capable of effectively isolating or reducing heat radiation.

Inventors

PENG XUEDONG
LI XIANHUA
XU YANCHAO
CHENG HUBIN
SU WANXIN
YE XINXIN
XU RENJIE

Assignees

富冶集团有限公司
江西和丰环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250430

Claims (9)

1. The utility model provides a wireless temperature measuring device suitable for multi-metal smelting rotary kiln high temperature region, includes the thermocouple, characterized by, the thermocouple is provided with the thermocouple protection sleeve outward, is provided with outer protective housing outward in the thermocouple protection sleeve, is provided with fire-resistant filler layer between outer protective housing and the thermocouple protection sleeve, and thermocouple protection sleeve fixed mounting is on the rotary kiln shell, and outer protective housing fixed mounting is on the rotary kiln inside lining, and the inside end of thermocouple protection sleeve inserts the rotary kiln inside lining, and demountable installation has wireless temperature transmitter on the thermocouple protection sleeve outer end, is provided with wireless transmitting module on the wireless temperature transmitter.
2. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 1, wherein the thermocouple protecting sleeve comprises a flange, a sleeve and a guide piece, the guide piece is fixedly welded on the inner side of one end of the sleeve, a guide taper hole is formed in the center of the guide piece, and the flange is fixedly installed on the other end of the sleeve.
3. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 2, wherein the flange is provided with a mounting hole, and the thermocouple protecting sleeve is fixedly mounted on the rotary kiln shell through the mounting hole by bolts.
4. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 2, wherein the outer side end of the flange is detachably provided with a wireless temperature transmitter through bolts.
5. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 2, wherein a heat insulation pad is arranged between the flange and the rotary kiln shell.
6. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 5, wherein the heat insulation pad adopts multi-layer heat insulation asbestos.
7. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 1, wherein the refractory filler layer is made of high-alumina casting refractory filler.
8. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 1, wherein the outer protective shell comprises a box body, and inclined coulters are arranged on two sides of the box body.
9. The wireless temperature measuring device suitable for the high-temperature area of the multi-metal smelting rotary kiln according to claim 8, wherein a plurality of groups of rib hooks are arranged on the side wings of the box body, which are positioned on the fire facing surface.

Description

Wireless temperature measuring device suitable for high-temperature area of multi-metal smelting rotary kiln Technical Field The utility model relates to the technical field of temperature measurement, in particular to a wireless temperature measuring device suitable for a high-temperature area of a multi-metal smelting rotary kiln. Background In the multi-metal smelting process, the rotary kiln plays a key role, and the internal temperature of the rotary kiln has a decisive influence on smelting effect and product quality. The temperature in the kiln is precisely controlled, and the purity and the production efficiency of the product are directly related. However, the current temperature measurement technology for rotary kilns still faces a number of challenges. In a traditional wired temperature measurement mode, a temperature sensor (such as a thermocouple or a thermal resistor) is vertically inserted into a kiln body, a wire is connected with a slip ring fixed on the circumference of the kiln body, the slip ring rotates along with the kiln body and contacts with stationary equipment fixed on a kiln body supporting base, and a temperature signal is transmitted to a remote DCS system through a cable. However, the slip ring has the obvious defects that the slip ring has a complex and precise structure, and after long-time operation, the abrasion of the slip ring and static equipment is increased, and poor contact is easily caused, so that signal transmission is damaged, and the temperature measurement effect is influenced. Once the failure occurs, the furnace shutdown maintenance can seriously affect the production efficiency and increase the production cost. Non-contact temperature measurement methods, such as measurement from kiln head or kiln tail alignment measurement areas by using infrared, optical pyrometers and the like, have obvious disadvantages. Dust, water mist and the like in the flue gas in the rotary kiln can absorb radiation energy of a target in a detected area, so that the display value of the measuring device is lower than the actual value, and inaccurate measurement is caused. In addition, the temperature of the target in the region is affected by various factors such as convection, radiation and conduction, and the change rule of the affecting factors of dust and water mist in the flue gas in the rotary kiln is not fixed, so that the transmission between the temperature field and the outside is difficult to accurately measure, and reliable data support cannot be provided for production. The protective sleeve of the traditional wireless transmission thermocouple is usually made of 304 stainless steel, the average service life of the protective sleeve is short under the working condition of 1100 ℃, and the failure frequency of the wireless transmission transmitter is high under the high heat radiation environment of the rotary kiln. According to statistics, the average frequency of failure shutdown per month of the traditional temperature measurement system is high, and the production continuity is seriously affected. Therefore, it is important to develop a wireless temperature measuring device with a corresponding outer protective shell and capable of effectively isolating or reducing heat radiation. Disclosure of utility model In order to solve the technical problems, the utility model designs a wireless temperature measuring device suitable for a high-temperature area of a multi-metal smelting rotary kiln. The utility model adopts the following technical scheme: The utility model provides a wireless temperature measuring device suitable for multi-metal smelting rotary kiln high temperature region, includes the thermocouple, be provided with the thermocouple protection sleeve outward the thermocouple, be provided with outer protective housing outward the thermocouple protection sleeve, be provided with fire-resistant filler layer between outer protective housing and the thermocouple protection sleeve, thermocouple protection sleeve fixed mounting is on the rotary kiln shell, outer protective housing fixed mounting is on the rotary kiln inside lining, the inside end of thermocouple protection sleeve inserts the rotary kiln inside lining inboard, demountable installation has wireless temperature transmitter on the thermocouple protection sleeve outer end, is provided with wireless transmitting module on the wireless temperature transmitter. The wireless temperature transmitter is matched with the wireless transmitting module and the wireless gateway to transmit the temperature detected by the thermocouple. Preferably, the thermocouple protective sleeve comprises a flange, a sleeve and a guide piece, wherein the guide piece is fixedly welded on the inner side of one end of the sleeve, a guide taper hole is formed in the center of the guide piece, and the flange is fixedly arranged on the other end of the sleeve. Preferably, the flange is provided with a mounting hole, and the thermocouple