Temperature measuring device in kiln

Abstract

The utility model discloses a temperature measuring device in a kiln, which comprises a protective sleeve and a temperature measuring piece, the protective sleeve is fixedly connected to the lower part of a kiln head cover, one end of the protective sleeve extends into a rotary drum, the protective sleeve is provided with a supply port for supplying a cooling medium, and the temperature measuring piece is fixedly connected into the protective sleeve. The detection end of the temperature measuring piece is exposed out of the protective sleeve and located in the rotary drum. According to the utility model, the detection end of the temperature measuring piece can be directly contacted with roasting materials in the rotary drum, so that the temperature of the materials can be accurately measured; the protective sleeve filled with the cooling medium can protect and cool the non-detection end of the temperature measuring piece, so that the non-detection end of the temperature measuring piece is prevented from being deformed due to the influence of the temperature in the kiln, in addition, the detection end of the temperature measuring piece does not rotate along with the rotary drum, the material impact force borne by the detection end is small, and the service life of the temperature measuring piece is prolonged. In other words, the precision of the temperature measuring piece is not easily affected due to deformation and damage; therefore, the in-kiln temperature measuring device can improve the measurement precision of the temperature of the materials in the roasting kiln.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature measurement, in particular to a temperature measuring device in a kiln. Background Art

[0002] Currently, the temperature of materials inside roasting kilns is typically measured using infrared thermal imaging devices, wireless kiln probes, or external kiln body scanning temperature measurement devices. However, dust easily forms inside kilns, and the infrared rays of infrared thermal imaging devices cannot penetrate floating objects like dust, which directly affects measurement accuracy. Wireless kiln probes are installed on the kiln body and rotate with it. The front end of the probe, which comes into contact with the material during rotation, generates significant impact force, making it susceptible to deformation or damage, resulting in reduced measurement accuracy. External kiln body scanning temperature measurement devices are installed outside the kiln body, and measurement accuracy is affected by the thickness of the castable inside the kiln, the thermal conductivity of the refractory bricks, and the external environment of the kiln body. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model provides a temperature measuring device in a kiln, which can improve the measurement accuracy.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A temperature measuring device in a kiln, comprising:

[0006] A protective sleeve is fixedly connected to the lower part of the kiln head cover, one end of the protective sleeve extends into the rotating drum, and a supply port for supplying a cooling medium is provided on the protective sleeve;

[0007] The temperature measuring piece is fixedly connected in the protective sleeve, and the detection end of the temperature measuring piece is exposed outside the protective sleeve and is located in the rotating drum.

[0008] The beneficial effects of adopting the above technical solution are as follows: the detection end of the temperature measuring piece can directly contact the roasting material in the rotating drum, which is conducive to accurately measuring the material temperature; and the protective sleeve that can pass the cooling medium can play a protective cooling role on the non-detecting end of the temperature measuring piece, thereby ensuring that the non-detecting end of the temperature measuring piece is not deformed due to the influence of the temperature in the kiln. In addition, the detection end of the temperature measuring piece does not rotate with the rotating drum, and the impact force of the material on it is relatively small, that is, the temperature measuring piece is not easily damaged due to deformation, resulting in the accuracy being affected; in summary, the temperature measuring device in the kiln can improve the measurement accuracy of the material temperature in the roasting kiln.

[0009] In one embodiment, the supply port is communicated with a supply pipe for supplying cooling gas.

[0010] The beneficial effect of adopting the above technical solution is that the cooling gas can be supplied into the protective sleeve through the supply pipe and the supply port, so as to facilitate cooling of the temperature measuring component.

[0011] In one embodiment, the protective sleeve is provided with an exhaust port for exhausting the cooling gas.

[0012] The beneficial effect of adopting the above technical solution is that the exhaust port can discharge the cooling gas after heat exchange in time to avoid the cooling gas being unable to be supplied from the supply port due to gas accumulation in the protective sleeve.

[0013] In one embodiment, the protective sheath is a heat-resistant sheath.

[0014] The beneficial effect of adopting the above technical solution is that the protective cover has high temperature resistance.

[0015] In one embodiment, the protective sheath is a corrosion resistant sheath.

[0016] The beneficial effect of adopting the above technical solution is that the protective sleeve has corrosion resistance, thereby reducing the corrosion of the protective sleeve and even the temperature measuring component inside the protective sleeve by the material.

[0017] In one embodiment, the protective sheath is a stainless steel sheath.

[0018] In one embodiment, the temperature measuring component includes a temperature transmitter, and a detection end of the temperature transmitter is exposed outside the protective sleeve.

[0019] The beneficial effect of adopting the above technical solution is that the temperature measuring element relies on the detection end of the temperature transmitter to perform temperature detection.

[0020] In one embodiment, a wear-resistant layer is provided on the outer side of the detection end of the temperature measuring element.

[0021] The beneficial effect of adopting the above technical solution is that the wear-resistant layer can improve the wear resistance of the outer side of the detection end of the temperature measuring piece, thereby reducing the impact of the material on the detection end of the temperature measuring piece, thereby avoiding deformation of the detection end of the temperature measuring piece.

[0022] In one embodiment, one end of the protective sleeve exposed from the rotating drum is fixedly connected to a flange, and the flange is fixedly connected to the temperature measuring component.

[0023] The beneficial effect of adopting the above technical solution is that the temperature measuring piece is fixedly connected in the protective sleeve through the flange.

[0024] In one embodiment, the protective sleeve and the temperature measuring element are both arranged horizontally.

[0025] The beneficial effects of the present invention are:

[0026] The detection end of the temperature measuring piece can directly contact the roasting material in the rotating drum, which is conducive to the accurate measurement of the material temperature; and the protective sleeve that can be passed with the cooling medium can protect and cool the non-detecting end of the temperature measuring piece, thereby ensuring that the non-detecting end of the temperature measuring piece is not deformed by the temperature in the kiln. In addition, the detection end of the temperature measuring piece does not rotate with the rotating drum, and the impact force of the material on it is relatively small, that is, the temperature measuring piece is not easily damaged due to deformation, resulting in a loss of accuracy; in summary, the temperature measuring device in the kiln can improve the measurement accuracy of the material temperature in the roasting kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0028] in:

[0029] Figure 1 Shows the installation diagram of the utility model;

[0030] Figure 2 Shows Figure 1 Right view of;

[0031] Figure 3 Shows a schematic structural diagram of the utility model;

[0032] In the drawings, like reference numerals are used for like parts, but the drawings are not necessarily true to scale.

[0033] Reference numerals:

[0034] 1-rotating drum, 2-kiln head cover, 3-protective sleeve, 4-supply pipe, 5-flange, 6-temperature measuring piece, 7-exhaust port, 8-supply port. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] The utility model provides a temperature measuring device in a kiln, such as Figure 1-3 Shown, including:

[0037] The protective sleeve 3 is horizontally fixedly connected to the lower part of the kiln head cover 2, one end of the protective sleeve 3 extends into the rotating drum 1, and the protective sleeve 3 is provided with a supply port 8 for supplying a cooling medium;

[0038] The temperature measuring member 6 is coaxially fixedly connected to the protective sleeve 3 , and the detection end of the temperature measuring member 6 is exposed outside the protective sleeve 3 and is located inside the rotating drum 1 .

[0039] It can be understood that the detection end of the temperature measuring part 6 can directly contact the roasting material in the rotating drum 1, which is conducive to the accurate measurement of the material temperature; and the protective sleeve 3 that can pass the cooling medium can play a protective cooling role on the non-detecting end of the temperature measuring part 6, thereby ensuring that the non-detecting end of the temperature measuring part 6 is not deformed due to the influence of the temperature in the kiln. In addition, the detection end of the temperature measuring part 6 does not rotate with the rotating drum 1, and the impact force of the material on it is relatively small, that is, the temperature measuring part 6 is not easily damaged due to deformation, resulting in the accuracy being affected; in summary, the temperature measuring device in the kiln can improve the measurement accuracy of the material temperature in the roasting kiln.

[0040] It should be noted that the temperature measuring piece 6 can change in real time with the material temperature, providing an operating reference for the operator to ensure the calcination effect of the material and improve the conversion rate, which is beneficial to control the amount of natural gas used and thus reduce the roasting cost; and because of the protection of the protective cover 3, the maintenance cost of the temperature measuring piece 6 can be reduced.

[0041] It should also be noted that the length of the temperature measuring member 6 can be determined according to the material conditions of the roasting kiln.

[0042] In one embodiment, the supply port 8 is communicated with a supply pipe 4 for supplying cooling gas.

[0043] It is understandable that cooling gas can be supplied into the protective sleeve 3 through the supply pipe 4 and the supply port 8 to facilitate cooling of the temperature measuring component 6 .

[0044] It should be noted that the supply port 8 can be provided at the end of the protective sleeve 3 that does not extend into the drum 1 .

[0045] In one embodiment, the protective cover 3 is provided with an exhaust port 7 for discharging cooling gas.

[0046] It is understandable that the exhaust port 7 can discharge the cooling gas after heat exchange in time to avoid the cooling gas being unable to be supplied from the supply port 8 due to gas accumulation in the protective sleeve 3.

[0047] It should be noted that the exhaust port 7 and the supply port 8 can be located at both ends of the protective sleeve 3 respectively, or both at one end of the protective sleeve 3, but it is best to be located at both ends of the protective sleeve 3 to ensure that the cooling gas can flow through the entire protective sleeve 3.

[0048] In one embodiment, the protective sleeve 3 is a heat-resistant sleeve and a corrosion-resistant sleeve, so that the protective sleeve 3 has high temperature resistance and corrosion resistance, thereby reducing the impact of the temperature in the kiln on the protective sleeve 3 and reducing the corrosion of the material on the protective sleeve 3 and even the temperature measuring component 6 in the protective sleeve 3.

[0049] Specifically, the protective sleeve 3 can be a 316 stainless steel sleeve.

[0050] In one embodiment, the temperature measuring component 6 includes a temperature transmitter, and a detection end of the temperature transmitter is exposed outside the protective sleeve 3 .

[0051] It can be understood that the temperature measuring element 6 relies on the detection end of the temperature transmitter to perform temperature detection.

[0052] It should be noted that the operating voltage of the temperature transmitter can be DC 24V, the signal output range can be a current signal of 4 mA to 20 mA, and it can carry the Hart protocol, and the temperature measurement range can be 0 to 1200°C.

[0053] In one embodiment, a wear-resistant layer is provided on the outside of the detection end of the temperature measuring piece 6. The wear-resistant layer can improve the wear resistance of the outside of the detection end of the temperature measuring piece 6 to reduce the impact of the material on the detection end of the temperature measuring piece 6, thereby avoiding deformation of the detection end of the temperature measuring piece 6.

[0054] It should be noted that the wear-resistant layer can be made of 60 cobalt-chromium alloy; in addition, the portion of the temperature measuring element 6 that does not contact the material can be made of a stainless steel tube.

[0055] In one embodiment, one end of the protective sleeve 3 exposed from the drum 1 is bolted with a flange 5 , and the flange 5 is fixedly connected to the temperature measuring component 6 , that is, the temperature measuring component 6 is fixedly connected to the protective sleeve 3 through the flange 5 .

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0057] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A temperature measuring device in a kiln, characterized in that: include: A protective sleeve (3), the protective sleeve (3) is fixedly connected to the lower part of the kiln head cover (2), one end of the protective sleeve (3) extends into the rotating drum (1), and the protective sleeve (3) is provided with a supply port (8) for supplying a cooling medium; A temperature measuring piece (6) is fixedly connected to the protective sleeve (3), and a detection end of the temperature measuring piece (6) is exposed outside the protective sleeve (3) and is located inside the rotating drum (1).

2. A kiln temperature measuring device according to claim 1, characterized in that: The supply port (8) is connected to a supply pipe (4) for supplying cooling gas.

3. A kiln temperature measuring device according to claim 2, characterized in that: The protective sleeve (3) is provided with an exhaust port (7) for discharging cooling gas.

4. A kiln temperature measuring device according to claim 1, characterized in that: The protective sleeve (3) is a heat-resistant sleeve.

5. A kiln temperature measuring device according to claim 1 or 4, characterized in that: The protective sleeve (3) is a corrosion-resistant sleeve.

6. A kiln temperature measuring device according to claim 5, characterized in that: The protective sleeve (3) is a stainless steel sleeve.

7. The kiln temperature measuring device according to claim 1, characterized in that: The temperature measuring component (6) comprises a temperature transmitter, and a detection end of the temperature transmitter is exposed outside the protective sleeve (3).

8. A kiln temperature measuring device according to claim 1 or 7, characterized in that: The outer side of the detection end of the temperature measuring piece (6) is provided with a wear-resistant layer.

9. The temperature measuring device in a kiln according to claim 1, characterized in that: One end of the protective sleeve (3) exposed from the rotating drum (1) is fixedly connected to a flange (5), and the flange (5) is fixedly connected to the temperature measuring component (6).

10. The kiln temperature measuring device according to claim 1, characterized in that: The protective sleeve (3) and the temperature measuring element (6) are both arranged horizontally.

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