Indirect temperature measuring device for pyrolysis kiln cylinder

Abstract

An indirect temperature measuring device for a pyrolysis kiln cylinder, comprising an outer cylinder body (1), wherein an inner cylinder body (2) is arranged inside the outer cylinder body (1); a temperature measuring mechanism (3) is provided to measure the temperature of the inner cylinder body (2) of a pyrolysis kiln in a matched manner; a thermal resistor (10) is inserted into a sleeve (4) and a nut (15) on a connecting ring (13) is inserted into a flange hole (12) on a flange (11), and then the nut (15) is screwed into a threaded short rod (14), such that the thermal resistor (10) and the connecting ring (13) are fixed together, and a junction box (9) is rotated clockwise to indirectly drive a rotating ring (18) to rotate by means of a compression spring (17) on the bottom surface of the connecting ring (13), such that a limiting block (16) moves from a limiting lateral opening (8) into a vertical opening (7); and the limitation on the compression spring (17) is released, such that the compression spring (17) performs a retraction recovery operation to drive the connecting ring (13) to move downwards so that the thermal resistor (10) moves downwards along the sleeve (4), and the bottom end part of the thermal resistor is tightly attached to the outer surface of the inner cylinder body (2) under the elastic force of the compression spring (17), thereby ensuring that the inner cylinder body (2) is not affected by a hot state, a cold state and the temperature measurement position during indirect temperature measurement.

Description

An indirect temperature measuring device for pyrolysis kiln cylinder Technical Field

[0001] The utility model relates to the field of temperature measuring devices, in particular to an indirect temperature measuring device for a pyrolysis kiln cylinder. Background Art

[0002] Coal pyrolysis takes place in a high-temperature rotary kiln cylinder. Due to the high cylinder temperature, insulation is required outside the inner cylinder to reduce heat loss and facilitate the operation of the kiln support and transmission under low-temperature conditions. In order to control and understand the pyrolysis situation, temperature measuring points are often designed at the kiln head, kiln middle and kiln tail. Therefore, a thermal resistor needs to be installed on the outside of the outer cylinder. This temperature detector monitors the temperature of the inner cylinder.

[0003] In the existing technology, due to the large temperature difference between the inner and outer cylinders, especially the large axial and radial thermal deformation of the inner cylinder, it is difficult to adjust the installation position of the thermal resistor fixed on the outer cylinder when indirectly measuring the temperature of the inner cylinder. As a result, if the gap between the thermal resistor sensing head and the surface of the inner cylinder is small, the expansion of the inner cylinder after heating may damage the thermal resistor sensing head. If the gap is large, the contact area between the thermal resistor sensing head and the inner cylinder is small, resulting in inaccurate measurement of the inner cylinder temperature.

[0004] Utility Model Content

[0005] The main purpose of the utility model is to provide an indirect temperature measuring device for a pyrolysis kiln cylinder, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An indirect temperature measuring device for a pyrolysis kiln cylinder comprises an outer cylinder, an inner cylinder is provided inside the outer cylinder, a temperature measuring mechanism is provided outside the outer cylinder, and the temperature measuring mechanism comprises a sleeve, a sleeve, a junction box, a thermal resistor, a connecting ring, a compression spring and a rotating ring, the sleeve is fixedly connected to the outside of the outer cylinder, and the sleeve is fixedly connected to the top of the sleeve, the rotating ring is movably connected to the inner bottom end of the sleeve through T-shaped sliders on both sides of the bottom surface, and the compression spring is fixedly connected between the rotating ring and the connecting ring, the junction box is fixedly connected to the top surface of the connecting ring through a nut, and the thermal resistor is fixedly connected to the bottom surface of the junction box and passes through the sleeve.

[0008] Preferably, the sleeve is fixedly mounted on the top surface of the outer cylinder, and the sleeve passes through the outer cylinder and is located above the inner cylinder.

[0009] Preferably, the sleeve is fixedly mounted on the top surface of the sleeve and is connected, and a T-shaped ring groove is provided on the inner bottom surface of the sleeve, vertical openings are provided on both sides of the outside of the sleeve, and a limited side opening is also provided on the inner top side of the vertical opening.

[0010] Preferably, T-shaped sliders are fixedly installed on both sides of the bottom surface of the rotating ring, and the T-shaped sliders are movably installed in the T-shaped ring groove. The bottom surface of the rotating ring and the bottom surface of the connecting ring are respectively provided with annular grooves, and the upper and lower ends of the compression spring are respectively fixedly installed in the grooves of the annular grooves.

[0011] Preferably, a thermal resistor is fixedly mounted on the bottom surface of the junction box, and the thermal resistor is inserted into the sleeve. A flange is also fixedly mounted on the upper portion of the outer wall of the thermal resistor, and a plurality of flange holes are opened on the top surface of the flange.

[0012] Preferably, a plurality of threaded short rods corresponding to the flange holes are fixedly installed on the top surface of the connecting ring, and the threaded short rods are inserted into the flange holes, the nuts are threadedly connected to the threaded short rods, and limit blocks corresponding to the limit side openings are also fixedly installed on both sides of the outer wall of the connecting ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the utility model, the temperature measuring mechanism is used in conjunction with the temperature measurement of the cylinder in the pyrolysis kiln. The thermal resistor is inserted into the sleeve and the nut on the connecting ring is inserted into the flange hole on the flange. The nut is then screwed onto the threaded short rod to fix the thermal resistor and the connecting ring together. The terminal box is rotated clockwise to indirectly drive the rotating ring to rotate through the compression spring on the bottom surface of the connecting ring, so that the limit block moves from the limit side opening to the vertical opening, and the restriction of the compression spring is released so that the compression spring performs a recovery retraction operation to drive the connecting ring downward so that the thermal resistor moves down along the sleeve, and the elastic force of the compression spring makes the bottom part tightly attached to the outer surface of the inner cylinder, thereby ensuring that the indirect temperature measurement of the inner cylinder is not affected by the hot and cold states and the temperature measurement position, and can always ensure that the thermal resistor is in elastic contact with the surface of the inner cylinder for effective temperature measurement, thereby not only avoiding damage to the thermal resistor, but also ensuring the accuracy of the indirect temperature measurement of the inner cylinder. It is suitable for indirect measurement of the cylinder temperature of rotary kilns in the fields of coal pyrolysis, metallurgy, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 is a schematic cross-sectional view of the casing and sleeve of the present invention;

[0017] FIG3 is a schematic diagram showing the structural disassembly of the temperature measuring mechanism of the present invention.

[0018] In the figure: 1. Outer cylinder; 2. Inner cylinder; 3. Temperature measuring mechanism; 4. Casing; 5. Sleeve; 6. T-shaped ring groove; 7. Vertical opening; 8. Limiting side opening; 9. Junction box; 10. Thermal resistor; 11. Flange; 12. Flange hole; 13. Connecting ring; 14. Threaded short rod; 15. Nut; 16. Limit block; 17. Compression spring; 18. Rotating ring; 19. T-shaped slider; 20. Annular groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] As shown in Figures 1 to 3, an indirect temperature measuring device for a pyrolysis kiln cylinder comprises an outer cylinder 1, an inner cylinder 2 is provided inside the outer cylinder 1, a temperature measuring mechanism 3 is provided outside the outer cylinder 1, and the temperature measuring mechanism 3 comprises a sleeve 4, a sleeve 5, a junction box 9, a thermal resistor 10, a connecting ring 13, a compression spring 17 and a rotating ring 18. The sleeve 4 is fixedly connected to the outside of the outer cylinder 1, and the sleeve 5 is fixedly connected to the top of the sleeve 4. The rotating ring 18 is movably connected to the inner bottom end of the sleeve 5 through T-shaped sliders 19 on both sides of the bottom surface, and the compression spring 17 is fixedly connected between the rotating ring 18 and the connecting ring 13. The junction box 9 is fixedly connected to the top surface of the connecting ring 13 by a nut 15, and the thermal resistor 10 is fixedly connected to the bottom surface of the junction box 9 and passes through the sleeve 4.

[0021] As shown in Figures 1 to 3, in this embodiment, in order to ensure the effective temperature measurement and temperature measurement accuracy of the cylinder 2 in the pyrolysis kiln through the temperature measuring mechanism 3, the sleeve 4 is fixedly installed on the top surface of the outer cylinder 1, and the sleeve 4 passes through the outer cylinder 1 and is located above the inner cylinder 2, the sleeve 5 is fixedly installed on the top surface of the sleeve 4 and is connected, and a T-shaped ring groove 6 is provided on the bottom surface of the sleeve 5, and vertical openings 7 are respectively provided on both sides of the outside of the sleeve 5, and a limited side opening 8 is also provided on one side of the top end of the vertical opening 7, and T-shaped sliders 19 are respectively fixedly installed on both sides of the bottom surface of the rotating ring 18, and the T-shaped slider 19 is movably installed in the T-shaped ring groove 6, the bottom surface of the rotating ring 18 and the bottom surface of the connecting ring 13 Annular grooves 20 are respectively provided, and the upper and lower ends of the compression spring 17 are respectively fixedly installed in the grooves of the annular grooves 20, and the bottom surface of the junction box 9 is fixedly installed with a thermal resistor 10, and the thermal resistor 10 is inserted and installed in the sleeve 4. A flange 11 is also fixedly installed on the upper part of the outer wall of the thermal resistor 10, and a plurality of flange holes 12 are provided on the top surface of the flange 11. A plurality of threaded short rods 14 corresponding to the flange holes 12 are fixedly installed on the top surface of the connecting ring 13, and the threaded short rods 14 are inserted and installed in the flange holes 12. The nut 15 is threadedly connected to the threaded short rod 14. The outer wall of the connecting ring 13 is also fixedly installed on both sides with limit blocks 16 corresponding to the limit side openings 8;

[0022] The specific operating principle of the temperature measuring mechanism 3 in conjunction with the pyrolysis kiln is as follows: when measuring the temperature of the inner cylinder 2 in the outer cylinder 1, the thermal resistor 10 needs to be installed. During the installation process, the thermal resistor 10 installed on the bottom of the junction box 9 is inserted into the sleeve 4 installed on the top of the outer cylinder 1, and the threaded short rod 14 installed on the top of the connecting ring 13 in the sleeve 5 installed at the top of the sleeve 4 is inserted into the flange hole 12 opened on the top surface of the flange 11 installed above the outside of the thermal resistor 10. Then, the nut 15 is screwed into the threaded short rod 14 and threadedly connected with it. Then, the installation operation of the thermal resistor 10 is completed. Next, the terminal box 9 is rotated along the connection box 9. The terminal box 9 will drive the connecting ring 13 to rotate through the flange 11 outside the thermal resistor 10. The limit blocks 16 installed on both sides of the connecting ring 13 will move from the limit side opening 8 opened on the outer wall of the sleeve 5 to the vertical opening 7. At the same time, the connecting ring 13 will drive the rotating ring 18 to rotate on the bottom surface of the sleeve 5 through the compression spring 17 installed between the annular groove 20 opened at the opposite end of the rotating ring 18, and the T-shaped springs installed on both sides of the bottom surface of the rotating ring 18 The slider 19 will slide in a circular track in the groove of the T-ring groove 6 opened on the bottom surface of the inner tube of the sleeve 5 until the limit block 16 completely enters the vertical opening 7. At this time, the compression spring 17 will lose the limiting force from the connecting ring 13 and make a recovery retraction operation, and drive the connecting ring 13 to be located downward in the tube of the sleeve 5, and the limit blocks 16 installed on both sides of the connecting ring 13 will slide downward in the vertical opening 7. At this time, the elastic retraction force of the compression spring 17 will cause the lower end of the thermal resistor 10 at the bottom of the junction box 9 to pass through the sleeve 4 downward and elastically retract. The connecting ring 13 is pressed tightly against the outer wall of the inner cylinder 2 to ensure that the thermal resistor 10 is always in contact with the outer surface of the inner cylinder 2. When the inner cylinder 2 is heated and expands to push against the thermal resistor 10, the thermal resistor 10 will push the connecting ring 13 upward and force the compression spring 17 to extend, thereby preventing the thermal resistor 10 from being pushed against the ring. The reverse elastic retraction force of the compression spring 17 allows the thermal resistor 10 to contact with the outer surface of the inner cylinder 2, avoiding a gap between the bottom end of the thermal resistor 10 and the outer surface of the inner cylinder 2, thereby ensuring the accuracy of the indirect temperature measurement of the inner cylinder 2.

[0023] Thermistor 10 measures temperature and temperature-related parameters based on the property that the resistance of a conductor or semiconductor changes with temperature. Most RTDs 10 are made of pure metals, with platinum and copper being the most common. Nickel, manganese, and rhodium are also being used. Thermistor 10 typically transmits a resistance signal via leads to a computer control device or other secondary instrumentation, which then measures the temperature of the inner cylinder 2 of the pyrolysis kiln.

[0024] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An indirect temperature measurement device for a pyrolysis kiln cylinder, comprising an outer cylinder (1), wherein an inner cylinder (2) is arranged inside the outer cylinder (1), characterized in that: A temperature measuring mechanism (3) is provided on the outside of the outer cylinder (1), and the temperature measuring mechanism (3) comprises a sleeve (4), a sleeve (5), a junction box (9), a thermal resistor (10), a connecting ring (13), a compression spring (17) and a rotating ring (18); the sleeve (4) is fixedly connected to the outside of the outer cylinder (1), and the sleeve (5) is fixedly connected to the top of the sleeve (4); the rotating ring (18) is movably connected to the bottom end of the sleeve (5) via T-shaped sliders (19) on both sides of the bottom surface, and the compression spring (17) is fixedly connected between the rotating ring (18) and the connecting ring (13); the junction box (9) is fixedly connected to the top surface of the connecting ring (13) via a nut (15), and the thermal resistor (10) is fixedly connected to the bottom surface of the junction box (9) and passes through the sleeve (4).

2. The indirect temperature measuring device for a pyrolysis kiln shell according to claim 1, characterized in that: The sleeve (4) is fixedly mounted on the top surface of the outer cylinder (1), and the sleeve (4) passes through the outer cylinder (1) and is located above the inner cylinder (2).

3. The indirect temperature measuring device for a pyrolysis kiln shell according to claim 2, characterized in that: The sleeve (5) is fixedly mounted on the top surface of the sleeve (4) and is in communication with the sleeve (4). The inner bottom surface of the sleeve (5) is provided with a T-shaped ring groove (6). The outer sides of the sleeve (5) are respectively provided with vertical openings (7). A limiting side opening (8) is also provided on one side of the inner top end of the vertical opening (7).

4. The indirect temperature measuring device for a pyrolysis kiln shell according to claim 3, characterized in that: T-shaped sliders (19) are fixedly mounted on both sides of the bottom surface of the rotating ring (18), and the T-shaped sliders (19) are movably mounted in the T-shaped ring groove (6). The bottom surface of the rotating ring (18) and the bottom surface of the connecting ring (13) are respectively provided with annular grooves (20), and the upper and lower ends of the compression spring (17) are respectively fixedly mounted in the grooves of the annular grooves (20).

5. The indirect temperature measuring device for a pyrolysis kiln shell according to claim 4, characterized in that: A thermal resistor (10) is fixedly mounted on the bottom surface of the junction box (9), and the thermal resistor (10) is inserted and installed in the sleeve (4). A flange (11) is also fixedly mounted on the upper portion of the outer wall of the thermal resistor (10), and a plurality of flange holes (12) are provided on the top surface of the flange (11).

6. The indirect temperature measuring device for a pyrolysis kiln shell according to claim 5, characterized in that: A plurality of threaded short rods (14) corresponding to the flange holes (12) are fixedly mounted on the top surface of the connecting ring (13), and the threaded short rods (14) are inserted into the flange holes (12). The nuts (15) are threadedly connected to the threaded short rods (14). Limit blocks (16) corresponding to the limit side openings (8) are also fixedly mounted on both sides of the outer wall of the connecting ring (13).

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