Supporting device for protecting temperature measuring hole of rotary kiln

Abstract

A supporting device for protecting a temperature measuring hole of a rotary kiln comprises a fence, two Y-weight rods and two cross rods, and is characterized in that the fence is formed by erecting four steel plates, the fence surrounds the temperature measuring hole in a ring of refractory bricks of the rotary kiln, the bottom of the fence is fixedly welded to a furnace shell, and the cross rods are fixedly welded to the furnace shell. The radian of the welding surface of the steel plate and the furnace shell is consistent with that of the furnace shell; the two Y-weight rods are steel rods, the two Y-weight rods are correspondingly arranged on the two sides of the temperature measuring hole in the fence, straight rods of the Y-weight rods are erected in the radial direction of the temperature measuring hole, and the straight rod ends of the Y-weight rods are fixedly welded to the furnace shell; the two cross rods are horizontally arranged steel rods, the two cross rods are correspondingly arranged on the two sides of the temperature measuring hole in the fence, and the middle parts of the two cross rods are fixedly welded with the right openings of the Y right rods respectively. The supporting device for protecting the temperature measuring hole of the rotary kiln has the advantages of being simple in structure, low in cost, convenient to construct and capable of preventing the temperature measuring hole from being damaged in the production process of the rotary kiln.

Description

Technical Field

[0001] This utility model belongs to the field of rotary kiln technology, specifically, it is a support device for protecting the temperature measuring hole of a rotary kiln. Background Technology

[0002] Rotary kilns are important industrial equipment, primarily used for heat treatment and chemical reactions of materials, and are widely used in building materials, metallurgy, chemical industry, and environmental protection. Refractory materials not only protect the kiln body from high temperatures and chemical corrosion, but also reduce heat loss during operation, improving energy efficiency. They also participate in the heat transfer process to a certain extent, ensuring uniform heat distribution within the kiln, which is beneficial for material roasting and reactions. The main function of temperature measuring holes in rotary kilns is to allow temperature measuring devices (such as thermocouples, resistance temperature detectors, or infrared thermometers) to be inserted into the kiln to accurately measure the temperature at different locations within the kiln. The design of the temperature measuring holes must match the temperature measuring devices to ensure accurate and stable insertion and fixation. This is crucial for monitoring the kiln's operating status, ensuring product quality, and preventing equipment failure. During use, temperature measuring holes may be affected by factors such as material erosion and scaling, leading to damage to the measuring devices or inaccurate measurements. In conclusion, refractory materials and temperature measuring devices play a crucial role in rotary kilns, serving as key factors in ensuring their normal operation and efficient production. Therefore, the protective device around the temperature measuring hole must not only be tightly connected to the kiln body but also withstand various stresses during production and be locked to the refractory bricks of its surrounding ring to ensure the accuracy and safety of the temperature measuring device.

[0003] The quality of refractory lining directly affects the operational stability of a rotary kiln and has a significant impact on its service life. During continuous production in a rotary kiln, the refractory materials in the kiln body are prone to damage, segregation, and detachment under a series of physical and chemical reactions and various stresses, especially the refractory bricks in the ring containing the temperature measuring holes. Currently, the refractory lining construction for the ring containing the temperature measuring holes in rotary kilns mainly uses castable refractory, which is greatly affected by the construction environment. Improper handling of construction details can easily lead to cracking and detachment of the castable refractory, resulting in kiln shutdown for maintenance and affecting the normal operation of the rotary kiln. The susceptibility of the temperature measuring holes to damage and the difficulty in securing the refractory bricks in the ring (due to the cumbersome nature of castable refractory construction) can cause the temperature measuring holes to break due to thermal expansion and contraction during production and shutdown, creating gaps between the bricks and leading to refractory brick collapse.

[0004] Therefore, the known methods of setting up temperature measuring holes in rotary kilns have the aforementioned inconveniences and problems. Utility Model Content

[0005] The purpose of this invention is to provide a safe and reliable support device for protecting the temperature measuring hole of a rotary kiln.

[0006] To achieve the above objectives, the technical solution of this utility model is:

[0007] A support device for protecting the temperature measuring hole of a rotary kiln includes a fence, two Y-shaped bars, and two crossbars, characterized in that:

[0008] The fence is a fence made of four steel plates. The fence surrounds the temperature measuring hole in a ring of refractory bricks in the rotary kiln. The bottom of the fence is fixedly welded to the furnace shell. The curvature of the welded surface between the steel plate and the furnace shell is consistent with the curvature of the furnace shell.

[0009] The two Y-shaped rods are steel rods, which are set on both sides of the temperature measuring hole inside the enclosure. The straight rods of the Y-shaped rods are radially upright with the temperature measuring hole tube, and the straight rod ends of the Y-shaped rods are welded to the furnace shell.

[0010] The two horizontal bars are horizontally arranged steel bars, which are set on both sides of the temperature measuring hole inside the fence. The two ends of the two horizontal bars are fixedly welded to the corresponding fence steel plate, and the middle part of the two horizontal bars is fixedly welded to the right end of the Y-shaped bar.

[0011] The support device for protecting the temperature measuring hole of the rotary kiln of this utility model can also be further realized by the following technical measures.

[0012] The aforementioned support device for protecting the temperature measuring hole of the rotary kiln, wherein the height of the steel plate is 100-150mm.

[0013] The aforementioned support device for protecting the temperature measuring hole of the rotary kiln, wherein the thickness of the steel plate is 10-12mm.

[0014] The aforementioned support device for protecting the temperature measuring hole of the rotary kiln, wherein the diameter of the Y-shaped bar and the crossbar is ≥8mm.

[0015] The aforementioned support device for protecting the temperature measuring hole of the rotary kiln, wherein the height of the Y-shaped lever is 70%-80% of the thickness of the refractory brick.

[0016] After adopting the above technical solution, the support device for protecting the temperature measuring hole of the rotary kiln of this utility model has the following advantages:

[0017] 1. The support device has a simple structure, low cost, and is easy to construct;

[0018] 2. The support device is reliably connected to the furnace shell, and there is also a castable refractory (plastic) in the middle for further protection, which can effectively avoid the stress brought by the rotary kiln during actual production process from damaging the temperature measuring hole. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the support device structure according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 Top view;

[0021] Figure 3 Another structural schematic diagram of an embodiment of this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings. Example

[0023] The present invention relates to a support device for protecting the temperature measuring hole of a rotary kiln, comprising a fence, two Y-shaped bars, and two crossbars.

[0024] Please see now Figure 1-3 As shown in the figure, the fence is a fence made of four steel plates 2. The fence surrounds the temperature measuring hole 4 in the refractory bricks of the rotary kiln. The bottom of the fence is fixedly welded to the furnace shell 1. The curvature of the welded surface of the steel plate and the furnace shell is consistent with the curvature of the furnace shell. The height of the steel plate is 150mm and the thickness of the steel plate is 12mm.

[0025] The two Y-shaped weight bars 3 are steel bars used as anchors. The two Y-shaped weight bars are set on both sides of the temperature measuring hole inside the enclosure. The straight bar of the Y-shaped weight bar is radially upright with the temperature measuring hole tube, and the straight bar end of the Y-shaped weight bar is welded to the furnace shell. The height of the Y-shaped weight bar is 80% of the thickness of the refractory brick.

[0026] The two horizontal bars 5 are horizontally arranged steel bars, which are positioned on both sides of the temperature measuring hole inside the fence. The two ends of each horizontal bar are welded to the corresponding fence steel plate 2, and the middle portions of each horizontal bar are welded to the opening of the Y-shaped weight bar. The diameter of both the Y-shaped weight bar and the horizontal bars is 8mm.

[0027] The support device protecting the temperature measuring hole of the rotary kiln is also filled with micro-expansion castable or plastic material.

[0028] This utility model has substantial features and significant technological advancements. The support device for protecting the temperature measuring hole of the rotary kiln is pre-welded into the kiln body by laying out lines before the adjacent refractory bricks of the ring containing the temperature measuring hole are laid. The anchors connected to the kiln body and the temperature measuring hole must be on the same line. The arc of the welding surface of the steel plate and the furnace shell is consistent with the arc of the furnace shell to ensure that the angle between the steel plate and the refractory bricks being laid is consistent. Then, the refractory bricks are laid until they are tightly fitted with the steel plate. Finally, the temperature measuring hole is turned to the horizontal plane for the internal casting of the support device (plastic).

[0029] This utility model discloses a support device for protecting the temperature measuring holes of rotary kilns. It overcomes the problems of existing technologies where the temperature measuring holes are easily damaged and the surrounding refractory bricks are difficult to secure (due to the cumbersome casting process). Furthermore, during production and shutdown, thermal expansion and contraction can cause the temperature measuring holes to break, creating gaps between the bricks and leading to refractory brick collapse. The aim is to provide a support device for temperature measuring holes that can securely lock the surrounding refractory bricks, ensuring high safety.

[0030] The above embodiments are for illustrative purposes only and are not intended to limit the scope of this utility model. Those skilled in the art can make various modifications and variations without departing from the spirit and scope of this utility model. Therefore, all equivalent technical solutions should also fall within the scope of this utility model and should be defined by the claims.

Claims

1. A support device for protecting a temperature measuring hole of a rotary kiln, comprising a fence, two Y-shaped rods and two horizontal rods, characterized in that: the fence is a fence made of four steel plates, the fence surrounds the temperature measuring hole in a ring of refractory bricks of the rotary kiln, the bottom of the fence is fixedly welded to the furnace shell, and the curvature of the welding surface between the steel plates and the furnace shell is consistent with the curvature of the furnace shell; the two Y-shaped rods are steel rods, the two Y-shaped rods are correspondingly arranged on both sides of the temperature measuring hole in the fence, the straight rod of the Y-shaped rod is vertically erected in the direction of the pipe diameter of the temperature measuring hole, and the straight rod end of the Y-shaped rod is fixedly welded to the furnace shell; the two horizontal rods are horizontally arranged steel rods, the two horizontal rods are correspondingly arranged on both sides of the temperature measuring hole in the fence, the two ends of the two horizontal rods are fixedly welded to the corresponding fence steel plates, and the middle parts of the two horizontal rods are fixedly welded to the Y-shaped rod openings; the height of the steel plate is 100-150 mm; the thickness of the steel plate is 10-12 mm; the diameter of the Y-shaped rod and the horizontal rod is ≥8 mm; and the height of the Y-shaped rod is 70%-80% of the thickness of the refractory brick. ​ ​ ​ 2. The support device for protecting the temperature measurement hole of a rotary kiln according to claim 1, characterized in that, ​ 3. The support device for protecting the temperature measuring hole of a rotary kiln according to claim 1, characterized in that, ​ 4. The support device for protecting the temperature measuring hole of a rotary kiln according to claim 1, characterized in that, ​ 5. The support device for protecting the temperature measuring hole of a rotary kiln according to claim 1, characterized in that, ​

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