Rotary kiln temperature detection equipment

Abstract

The utility model provides rotary kiln temperature detection equipment, and aims to solve the problems that existing temperature detection equipment cannot meet the requirement for temperature detection of rotary kilns with various wall thicknesses, and the temperature detection equipment is easy to damage in the use process. Comprising a thermocouple connector lug, and the bottom end of the thermocouple connector lug is connected with a thermocouple. The middle of the thermocouple is fixedly installed on a limiting plate, the outer wall of the limiting plate is slidably sleeved with a limiting sleeve, the thermocouple penetrates through the upper end face and the lower end face of the limiting sleeve in a clearance mode, the limiting plate is located in the limiting sleeve, and the inner side wall of the top end of the limiting sleeve is further connected with the limiting plate through a first spring. And the first spring is sleeved on the outer wall of the thermocouple. The first spring is arranged between the inner side wall of the top end of the limiting sleeve and the limiting plate, in the rotating process of the rotary kiln, when an object impacts or abuts against the front end of the thermocouple, the first spring is compressed, damage to the thermocouple is avoided, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of temperature detection, in particular to a rotary kiln temperature detection device. Background Art

[0002] A rotary kiln is a thermal processing equipment that calcines, roasts or dries granular and powdered materials during the rotation process. It is widely used in building materials manufacturing, metallurgy, chemical industry and other fields. The temperature inside the rotary kiln during the rotary heat processing process plays a decisive role in the product quality. Therefore, monitoring and regulating the temperature inside the kiln has become the most important part of product control.

[0003] The existing rotary kiln temperature measurement methods mainly include direct measurement and indirect measurement. In direct measurement, a temperature measuring hole is opened on the furnace wall, and the front end of the thermocouple is inserted into the temperature measuring hole to measure the temperature. In indirect measurement, the temperature of the outer wall of the furnace body is measured and then the temperature inside the furnace body is calculated according to the thickness of the furnace wall. In the indirect measurement process, the measurement result is greatly affected by the measurement position and the thickness of the furnace body. The thickness of the furnace body is greatly affected by the manufacturing progress and the local leakage of the inner wall during use. Therefore, the accuracy of indirect measurement is difficult to determine. Therefore, the existing rotary kiln mostly adopts direct measurement and thermocouples for measurement. However, due to factors such as actual needs and cost control in the production process of the existing rotary kiln, its wall thickness is not consistent, and the spacing between the mounting flange of the existing temperature measurement equipment and the front end of the thermocouple is fixed, which cannot meet the needs of temperature measurement of rotary kilns with different wall thicknesses. At the same time, the product of the rotary kiln is easy to hit or collide with the front end of the thermocouple during rotation, causing its deformation and damage. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary kiln temperature detection device, which is used to solve the problem that the existing temperature detection device cannot meet the needs of temperature detection of rotary kilns with various wall thicknesses, and the temperature detection device is easily damaged during use.

[0005] A rotary kiln temperature detection device comprises a thermocouple terminal, wherein the bottom end of the thermocouple terminal is connected with a thermocouple;

[0006] The middle part of the thermocouple is fixedly mounted on a limit plate, a limit sleeve is slidably sleeved on the outer wall of the limit plate, the thermocouple gap passes through the upper and lower end surfaces of the limit sleeve, the limit plate is located in the limit sleeve, and the inner side wall of the top end of the limit sleeve is connected to the limit plate through a first spring, and the first spring is sleeved on the outer wall of the thermocouple.

[0007] Optionally, when the first spring is in a free state, the lower end surface of the limiting plate is in contact with the inner end surface of the limiting sleeve.

[0008] Optionally, an installation sleeve with an open upper end is sleeved on the outer wall of the limit sleeve, and the thermocouple passes through the installation sleeve with a gap.

[0009] An installation flange is provided at the lower end of the installation sleeve. The lower end surface of the installation flange is flush with the lower end surface of the installation sleeve. A plurality of first screw through holes are provided on the installation flange. When the temperature detection device is installed, it is locked to the outer wall of the rotary kiln furnace by first screws passing through the first screw through holes.

[0010] Optionally, an adjustment assembly for adjusting the length of the thermocouple extending out of the installation flange is further provided between the installation sleeve and the limit sleeve.

[0011] The adjustment assembly includes a strip-shaped limit block installed on the outer wall of the limit sleeve. The strip-shaped limit block is arranged in the vertical direction, and a plurality of limit grooves are provided on the strip-shaped limit block. The plurality of limit grooves are arranged at equal intervals in the vertical direction.

[0012] The installation sleeve is provided with a telescopic limit block that cooperates with the limit groove, and the telescopic limit block is clamped in any one of the plurality of limit grooves.

[0013] Optionally, the limit groove is a card slot with a V-shaped opening, and the front end of the telescopic limit block is provided with a V-shaped inclined surface.

[0014] Optionally, the number of the strip-shaped limit blocks and the telescopic limit blocks is two groups each.

[0015] The two groups of strip-shaped limit blocks and telescopic limit blocks are arranged by rotating 180° along the axis of the installation sleeve.

[0016] Optionally, a strip-shaped first groove block is provided on the outer wall of the installation sleeve. The length direction of the first groove block is parallel to the vertical direction. A vertical groove for avoiding the strip-shaped limit block is provided on the first groove block, and the vertical groove communicates with the inner cavity of the installation sleeve.

[0017] A second groove block is provided on the outer wall of the upper part of the first groove block. The length direction of the second groove block is perpendicular to the length direction of the first groove block. A transverse chute is provided in the second groove block along its length direction, and one side of the transverse chute communicates with the vertical groove.

[0018] Optionally, a guide plate is installed in the transverse chute. The end surface of the guide plate is perpendicular to the length direction of the second groove block.

[0019] A sliding hole is provided on the guide plate. The telescopic limit block slides along the sliding hole. The rear end of the telescopic limit block is connected to one end of a push rod. The axis of the push rod is parallel to the length direction of the second groove block. The other end of the push rod extends out of the side wall on the other side of the transverse chute and is connected to a fixing plate.

[0020] Optionally, a second spring is further sleeved on the outer wall of the push rod and the telescopic limit block;

[0021] The second spring is located between the inner side wall of the second groove block and the guide plate. When the second spring is in a free state, the front end of the telescopic limit block is disengaged from the limit groove.

[0022] Optionally, a plurality of second screw through holes are formed in the fixing plate;

[0023] When the adjustment of the adjustment component is completed, the fixing plate is locked to the outer wall of the transverse sliding groove through the second screws passing through the second screw through holes, and the telescopic limit block is clamped in any one of the plurality of limit grooves.

[0024] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0025] 1. By setting the length of the thermocouple extending out of the mounting flange in this application, it can meet the use requirements of rotary kilns with different wall thicknesses. By adjusting the position of its front end, it can be close to the inner wall of the rotary kiln, and the accuracy of temperature measurement is higher, and the applicable range is wide.

[0026] 2. By arranging a first spring between the inner side wall of the top end of the limit sleeve and the limit plate in this application, during the rotation of the rotary kiln, when an object impacts or abuts against the front end of the thermocouple, the first spring compresses, avoiding the damage of the thermocouple and improving the service life of the equipment.

[0027] Other advantages, objectives and features of the utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings of the utility model are described as follows.

[0029] Figure 1 It is a schematic structural diagram of the temperature detection device for the rotary kiln of the utility model.

[0030] Figure 2 It is a partial cross-sectional view of the temperature detection device for the rotary kiln of the utility model.

[0031] Figure 3 For the utility model Figure 2 The partial enlarged view at A in.

[0032] Figure 4This is a schematic structural view of the installation sleeve of the present utility model.

[0033] Figure 5 This is a schematic structural view of the limit sleeve of the present utility model.

[0034] Figure 6 This is a schematic structural view of the telescopic limit block, push rod, fixing plate and second spring of the present utility model.

[0035] In the figure: 1 - thermocouple terminal; 2 - thermocouple; 3 - limit plate; 4 - limit sleeve; 5 - first spring; 6 - installation sleeve; 7 - installation flange; 8 - first screw through hole; 9 - first screw; 10 - strip-shaped limit block; 11 - limit groove; 12 - telescopic limit block; 13 - first groove block; 14 - vertical groove; 15 - second groove block; 16 - transverse sliding groove; 17 - guide plate; 18 - sliding hole; 19 - push rod; 20 - fixing plate; 21 - second spring; 22 - second screw through hole; 23 - second screw. Specific embodiments

[0036] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0037] Embodiment 1:

[0038] As Figure 1 and Figure 2 shown, a rotary kiln temperature detection device includes a thermocouple terminal 1, and a thermocouple 2 is connected to the bottom end of the thermocouple terminal 1;

[0039] The middle part of the thermocouple 2 is fixedly installed on a limit plate 3, a limit sleeve 4 is slidably sleeved on the outer wall of the limit plate 3, the thermocouple 2 passes through the upper and lower end faces of the limit sleeve 4 with a gap, the limit plate 3 is located inside the limit sleeve 4, and a first spring 5 is also connected between the inner side wall of the top end of the limit sleeve 4 and the limit plate 3, and the first spring 5 is sleeved on the outer wall of the thermocouple 2.

[0040] In this embodiment, a central control board is arranged in the thermocouple terminal 1, the thermocouple 2 is connected to the central control board through a wire, and at the same time, the central control board communicates with external devices through an output line. When in use, a temperature measurement hole is opened on the outer wall of the rotary kiln, and the temperature detection device is installed on the outer wall of the rotary kiln, so that the thermocouple 2 extends into the furnace body of the rotary kiln for temperature measurement.

[0041] In this embodiment, when the first spring 5 is in a free state, the lower end surface of the limiting plate 3 is in contact with the inner end surface of the limiting sleeve 4. That is, when no external force is applied, the relative positions of the thermocouple 2, the limiting plate 3, and the limiting sleeve 4 are fixed. During the temperature measurement process, by providing the first spring 5, when the rotary kiln rotates and an object hits or touches the front end of the thermocouple 2, the first spring 5 compresses, avoiding damage to the thermocouple 2 and improving the service life of the equipment.

[0042] As Figure 1 , Figure 2 and Figure 3 shown, an installation sleeve 6 with an open upper end is sleeved on the outer wall of the limiting sleeve 4, and the thermocouple 2 passes through the installation sleeve 6 with a clearance;

[0043] An installation flange 7 is provided at the lower end of the installation sleeve 6. The lower end surface of the installation flange 7 is flush with the lower end surface of the installation sleeve 6. A plurality of first screw through holes 8 are provided on the installation flange 7. When the temperature detection device is installed, it is locked to the outer wall of the rotary kiln by the first screws 9 passing through the first screw through holes 8.

[0044] As Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, an adjustment assembly for adjusting the length of the thermocouple 2 extending out of the installation flange 7 is further provided between the installation sleeve 6 and the limiting sleeve 4;

[0045] The adjustment assembly includes a strip-shaped limiting block 10 installed on the outer wall of the limiting sleeve 4. The strip-shaped limiting block 10 is arranged in the vertical direction, and a plurality of limiting grooves 11 are provided on the strip-shaped limiting block 10. The plurality of limiting grooves 11 are arranged at equal intervals in the vertical direction;

[0046] A telescopic limiting block 12 cooperating with the limiting grooves 11 is provided on the installation sleeve 6, and the telescopic limiting block 12 is clamped in any one of the plurality of limiting grooves 11.

[0047] In this embodiment, when the telescopic limiting block 12 is disengaged from the limiting groove 11, push and pull the upper end of the limiting sleeve 4 to slide it along the inner wall of the installation sleeve 6 to adjust the length of the thermocouple 2 extending out of the installation flange 7. When the adjustment reaches the predetermined length, push the telescopic limiting block 12 to be clamped in the limiting groove 11 closest to it to fix the relative positions of the limiting sleeve 4 and the installation sleeve 6.

[0048] As Figure 2 , Figure 5 and Figure 6 shown, the limiting groove 11 is a V-shaped open clamping groove, and the front end of the telescopic limiting block 12 is provided with a V-shaped inclined surface.

[0049] In this embodiment, through the card slot with a V-shaped opening and the V-shaped inclined surface, it is convenient for the telescopic limiting block 12 to be inserted into the limiting slot 11. At the same time, during the adjustment process, when the telescopic limiting block 12 is not aligned with any of the limiting slots 11, it can also be guided through the V-shaped inclined surface, so that the relative position of the limiting sleeve 4 and the installation sleeve 6 is finely adjusted to achieve clamping connection.

[0050] As an embodiment of the present application, as Figure 1 and Figure 2 shown, the number of the strip-shaped limiting blocks 10 and the telescopic limiting blocks 12 is two groups, and the two groups of strip-shaped limiting blocks 10 and telescopic limiting blocks 12 are arranged by rotating 180° along the axis of the installation sleeve 6.

[0051] As Figure 2 , Figure 3 and Figure 4 shown, a strip-shaped first groove block 13 is arranged on the outer wall of the installation sleeve 6, the length direction of the first groove block 13 is parallel to the vertical direction, a vertical groove 14 for avoiding the strip-shaped limiting block 10 is opened on the first groove block 13, and the vertical groove 14 communicates with the inner cavity of the installation sleeve 6;

[0052] A second groove block 15 is arranged on the outer wall of the upper part of the first groove block 13, the length direction of the second groove block 15 is perpendicular to the length direction of the first groove block 13, and a transverse sliding groove 16 is opened in the second groove block 15 along its length direction, and one side of the transverse sliding groove 16 communicates with the vertical groove 14.

[0053] As Figure 2 , Figure 3 and Figure 6 shown, a guide plate 17 is installed in the transverse sliding groove 16, and the end face of the guide plate 17 is perpendicular to the length direction of the second groove block 15;

[0054] A sliding hole 18 is opened on the guide plate 17, the telescopic limiting block 12 slides along the sliding hole 18, the rear end of the telescopic limiting block 12 is connected to one end of a push rod 19, the axis of the push rod 19 is parallel to the length direction of the second groove block 15, and the other end of the push rod 19 extends out of the side wall on the other side of the transverse sliding groove 16 and is connected to a fixing plate 20.

[0055] As Figure 2 , Figure 3 and Figure 6 shown, a second spring 21 is also sleeved on the outer walls of the push rod 19 and the telescopic limiting block 12;

[0056] The second spring 21 is located between the inner side wall of the second groove block 15 and the guide plate 17. When the second spring is in a free state, the front end of the telescopic limit block 12 is disengaged from the limit groove 11.

[0057] As Figure 2 , Figure 3 and Figure 6 shown, a plurality of second screw through holes 22 are formed in the fixing plate 20;

[0058] When the adjustment of the adjustment assembly is completed, the fixing plate 20 is locked to the outer wall of the transverse sliding groove 16 by a second screw 23 passing through the second screw through hole 22, and the telescopic limit block 12 is clamped in any one of the plurality of limit grooves 11.

[0059] In this embodiment, during position adjustment, the second screw 23 is removed to make the second spring 21 in a free state, the telescopic limit block 12 and the limit groove 11, the limit sleeve 4 is pushed and pulled to adjust the extension length of the thermocouple 2. When adjusted to a predetermined position, the fixing plate 20 is pushed to make it fit with the outer wall of the transverse sliding groove 16 and locked by the second screw 23. At this time, the second spring 21 is in a compressed state, and the telescopic limit block 12 is clamped in any one of the plurality of limit grooves 11, and the adjustment of the extension length of the thermocouple 2 is completed.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A rotary kiln temperature detection device, comprising a thermocouple terminal (1), characterized in that: The bottom end of the thermocouple terminal (1) is connected to a thermocouple (2); The middle part of the thermocouple (2) is fixedly mounted on a limit plate (3); a limit sleeve (4) is slidably sleeved on the outer wall of the limit plate (3); the thermocouple (2) passes through the upper and lower end surfaces of the limit sleeve (4) in a gap; the limit plate (3) is located inside the limit sleeve (4); the inner side wall of the top end of the limit sleeve (4) and the limit plate (3) are also connected via a first spring (5); the first spring (5) is sleeved on the outer wall of the thermocouple (2).

2. A rotary kiln temperature detection device according to claim 1, characterized in that: When the first spring (5) is in a free state, the lower end surface of the limiting plate (3) fits into the inner end surface of the limiting sleeve (4).

3. The rotary kiln temperature detection device according to claim 1, characterized in that: A mounting sleeve (6) with an upper opening is sleeved on the outer wall of the limiting sleeve (4), and the thermocouple (2) passes through the mounting sleeve (6) with a gap; The lower end of the mounting sleeve (6) is provided with a mounting flange (7), the lower end surface of the mounting flange (7) is flush with the lower end surface of the mounting sleeve (6), and the mounting flange (7) is provided with a plurality of first screw through holes (8). When the temperature detection device is installed, it is locked to the outer wall of the rotary kiln furnace by means of first screws (9) passing through the first screw through holes (8).

4. A rotary kiln temperature detection device according to claim 3, characterized in that: An adjustment component for adjusting the length of the thermocouple (2) extending out of the mounting flange (7) is also provided between the mounting sleeve (6) and the limiting sleeve (4); The adjustment component comprises a long strip-shaped limiting block (10) mounted on the outer wall of the limiting sleeve (4), the long strip-shaped limiting block (10) being arranged in the vertical direction, and a plurality of limiting grooves (11) being arranged in the long strip-shaped limiting block (10), and the plurality of limiting grooves (11) being arranged at equal intervals in the vertical direction; The installation sleeve (6) is provided with a telescopic limit block (12) that cooperates with the limit groove (11), and the telescopic limit block (12) is clamped in any one of the limit grooves (11).

5. The rotary kiln temperature detection device according to claim 4, characterized in that: The limiting groove (11) is a slot with a V-shaped opening, and a V-shaped inclined surface is arranged at the front end of the telescopic limiting block (12).

6. The rotary kiln temperature detection device according to claim 5, characterized in that: The number of the long strip-shaped limit blocks (10) and the number of the telescopic limit blocks (12) are both two groups; The two groups of long strip-shaped limiting blocks (10) and the telescopic limiting blocks (12) are arranged to be rotated 180 degrees along the axis of the installation sleeve (6).

7. The rotary kiln temperature detection device according to claim 5, characterized in that: A first long slot block (13) is arranged on the outer wall of the installation sleeve (6), the length direction of the first slot block (13) is parallel to the vertical direction, and a vertical slot (14) is provided on the first slot block (13) for avoiding the long-strip limiting block (10), and the vertical slot (14) is communicated with the inner cavity of the installation sleeve (6); A second slot block (15) is arranged on the outer wall of the upper part of the first slot block (13); the length direction of the second slot block (15) is perpendicular to the length direction of the first slot block (13); a transverse sliding groove (16) is arranged in the second slot block (15) along its length direction; one side of the transverse sliding groove (16) is connected to the vertical slot (14).

8. The rotary kiln temperature detection device according to claim 7, characterized in that: A guide plate (17) is installed in the transverse sliding groove (16), and the end surface of the guide plate (17) is perpendicular to the length direction of the second slot block (15); The guide plate (17) is provided with a sliding hole (18), and the telescopic limit block (12) slides along the sliding hole (18). The rear end of the telescopic limit block (12) is connected to one end of a push rod (19), the axis of the push rod (19) is parallel to the length direction of the second slot block (15), and the other end of the push rod (19) extends out of the side wall on the other side of the transverse slot (16) and is connected to a fixed plate (20).

9. The rotary kiln temperature detection device according to claim 8, characterized in that: A second spring (21) is also sleeved on the outer walls of the push rod (19) and the telescopic limit block (12); The second spring (21) is located between the inner side wall of the second slot block (15) and the guide plate (17); when the second spring is in a free state, the front end of the telescopic limit block (12) is disengaged from the limit slot (11).

10. The rotary kiln temperature detection device according to claim 9, characterized in that: The fixing plate (20) is provided with a plurality of second screw through holes (22); When the adjustment of the adjustment assembly is completed, the fixing plate (20) is locked on the outer wall of the transverse sliding groove (16) by means of a second screw (23) passing through a second screw through hole (22), and the telescopic limit block (12) is clamped in any one of the limit grooves (11).

Images