A type of support nail for refractory hanging panels of a waste incinerator

Abstract

This utility model discloses a support nail for a refractory hanging plate in a waste incinerator. It has a bearing nail that can be fixed to the fins of a water-cooled wall. The bearing nail cooperates with the mounting plate to position the mounting plate onto the water-cooled wall. A heat-shrink sleeve is provided around the outer periphery of the bearing nail. The shrinkage ratio of the heat-shrink sleeve upon heating is greater than 4:1, thereby increasing the gap between the mounting plate and the bearing nail after heating. This solves the problem in the prior art where the nail and the fluid material expand and press against each other at high temperatures, causing damage to the nail and affecting the stability of the hanging plate position.

Description

Technical Field

[0001] This utility model relates to the field of incinerator protection technology, specifically to a support nail for a refractory hanging plate of a waste incinerator. Background Technology

[0002] In the field of incinerator equipment installation, the existing installation process for incinerator mounting plates typically follows a specific procedure. Specifically, the mounting plate must first be hung to initially position it in the predetermined location. Then, a fluid material is poured into the gap between the mounting plate and the water-cooled wall. The mounting plate is then fixed in place by the solidified structure of the fluid material. This installation method, to a certain extent, meets the basic requirements for mounting plate installation.

[0003] However, existing technologies have revealed significant shortcomings in practical applications. After the mounting plates are installed, fluid materials may inevitably enter the connection between the mounting pins and the mounting plates during the pouring process, resulting in an unintended material distribution. During incinerator operation, the high-temperature environment generated by combustion is an unavoidable working condition. Under this environment, both the mounting pins and the fluid materials will undergo volume changes due to thermal expansion. Since their coefficients of thermal expansion may differ, this thermal expansion will cause mutual pressure forces between the mounting pins and the fluid materials. Over time, this continuous pressure force will adversely affect the mounting pins, eventually leading to bending and damage. As a key component for supporting and positioning the mounting plates, the bending and damage of the mounting pins directly affects the support and positioning effect of the mounting plates, potentially causing problems such as loosening and displacement of the mounting plates, thereby affecting the normal operation and service life of the incinerator, and even potentially posing safety hazards. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art that the nails and fluid materials will press against each other due to their own expansion under high temperature environment, causing damage to the nails and thus affecting the stability of the hanging plate position. This invention provides a support nail for the refractory hanging plate of a waste incinerator.

[0005] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a support nail for a refractory hanging plate of a waste incinerator, which has a bearing nail that can be fixed to the fins of a water-cooled wall, and the bearing nail can cooperate with the mounting plate to position the mounting plate on the water-cooled wall.

[0006] The outer periphery of the bearing nail is provided with a heat shrink sleeve, and the shrinkage ratio of the heat shrink sleeve when heated is greater than 4:1, so as to increase the gap between the mounting plate and the bearing nail after heating.

[0007] As a further optimization of the refractory hanging plate support nail for a waste incinerator according to this utility model: the heat shrink sleeve is made of plastic or rubber.

[0008] As a further optimization of the refractory hanging plate for a waste incinerator according to this utility model, the bearing nail and the mating hole opened at the center of the heat shrink sleeve can be detachably connected together.

[0009] As a further optimization of the refractory hanging plate for a waste incinerator according to this utility model: the bearing nail is transitionally fitted with the heat shrink sleeve, and a threaded area is provided in the mating hole to connect with the threaded end of the bearing nail away from the water-cooled wall.

[0010] As a further optimization of the refractory hanging plate for a waste incinerator according to this utility model, the bearing nail is interference-fitted with the heat shrink sleeve.

[0011] As a further optimization of the support nail for the refractory hanging plate of the waste incinerator of this utility model: the end of the heat shrink sleeve away from the water-cooled wall is provided with a flared part to increase the force of the bearing nail pressing on the hanging plate.

[0012] As a further optimization of the refractory hanging plate for a waste incinerator according to this utility model, the amount of the bearing nail inserted into the snap-fit ​​hole opened on the mounting plate accounts for one-tenth to two-tenths of the total length of the bearing nail.

[0013] As a further optimization of the refractory hanging plate support nail for a waste incinerator according to this utility model: the end of the support nail that can be fixed to the water-cooled wall has a welded chamfer.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention connects the mounting plate to the water-cooled wall using a support pin, with a heat-shrink sleeve on its outer periphery. This sleeve allows for a tight engagement with pre-drilled holes on the mounting plate, precisely positioning the mounting plate onto the water-cooled wall and ensuring an appropriate distance between them. Subsequently, operators can easily inject fluid material between the water-cooled wall and the mounting plate, successfully securing the mounting plate. When the mounting plate is used in the high-temperature environment of a heat source incinerator, the heat-shrink sleeve shrinks and deforms, reducing its volume and providing space for the thermal expansion of the support pin and fluid material. This effectively reduces the risk of damage caused by the mutual pressure between the support pin and the fluid material, thereby minimizing the adverse effects of thermal expansion on the positional stability of the mounting plate. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a structural diagram of the present invention in its assembled state;

[0019] The markings in the diagram are: 1. Welding chamfer; 2. Heat shrink sleeve; 3. Flared section; 4. Threaded area; 5. Bearing pin; 6. Butt hole; 7. Mounting plate; 8. Snap-fit ​​hole; 9. Water-cooled wall. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0021] like Figure 1 and Figure 3 As shown, a support nail for a refractory hanging plate of a waste incinerator has a bearing nail 5 that can be welded to the fins of a water-cooled wall 9. The bearing nail 5 can match the pre-set snap-fit ​​hole 8 on the mounting plate 7, thereby accurately positioning the mounting plate 7 onto the fins of the water-cooled wall 9 and achieving a stable positioning of the mounting plate 7 on the surface of the water-cooled wall 9. The bearing nail 5 can be smoothly inserted into the mating hole 6 in the center of the heat shrink sleeve 2, causing the heat shrink sleeve 2 to tightly wrap around the outer periphery of the bearing nail 5. The synergistic effect of the heat shrink sleeve 2 and the bearing nail 5 can significantly improve the stability of the snap-fit ​​between the bearing nail 5 and the snap-fit ​​hole 8, thereby enhancing the accuracy and stability of the positioning of the mounting plate 7 by the bearing nail 5. After the mounting pin 5 and heat shrink sleeve 2 position the mounting plate 7 to the fins of the water-cooled wall 9, the operator can inject a specific fluid material between the water-cooled wall 9 and the mounting plate 7 to further secure the mounting plate 7 on the water-cooled wall 9. This not only achieves effective protection for the water-cooled wall 9, but also successfully blocks heat from penetrating the water-cooled wall 9, ensuring that the side of the water-cooled wall 9 away from the heat source maintains a lower temperature.

[0022] The end of the support nail 5 and the water-cooled wall 9 wing is provided with a welding chamfer 1. The welding chamfer 1 makes it easier for the operator to weld the support nail 5 to the water-cooled wall 9 for use, which improves the installation efficiency of the support nail 5 and the heat shrink sleeve 2.

[0023] The heat shrink sleeve 2 is made of high-performance plastic materials, rubber materials, and special materials that can deform and significantly reduce their volume under extreme high-temperature environments. Under the action of heat released by the heat source, the heat shrink sleeve 2 will melt and burn, resulting in a significant reduction in its volume. In particular, when the heat shrink sleeve 2 is made of rubber material, it will melt and burn into ash under high-temperature environments, significantly reducing its volume. After the heat shrink sleeve 2 melts, burns, and shrinks in volume under high temperature, the space between the snap-fit ​​hole 8 and the support pin 5 increases accordingly. After the heat shrink sleeve 2 turns into ash, the gap between the snap-fit ​​hole 8 and the support pin 5 further expands. At this time, the expansion effect of the fluid material and the support pin 5 under high-temperature environments will effectively fill this gap. This not only improves the stability of the support pin 5 and the fluid material in cooperating to support and position the mounting plate 7 to the water-cooled wall 9 fins, but also greatly reduces the risk of damage to the support pin 5 due to mutual pressure between the fluid material and the support pin 5, thereby reducing the possibility of a decrease in the stability of the mounting plate 7 caused by damage to the support pin 5.

[0024] The heat shrink sleeve 2 has a flared section 3 at the end facing away from the water-cooled wall 9. During the crucial process of engaging the support pin 5 and the heat shrink sleeve 2 with the mounting plate 7's engagement hole 8, the flared section 3 fully utilizes the elastic properties of the heat shrink sleeve 2 to effectively assist in maintaining the stability of the engagement between the support pin 5 and the engagement hole 8, thereby significantly enhancing the support stability of the support pin 5 for the mounting plate 7. Figure 2 As shown, a threaded area 4 is carefully formed inside the mating hole 6 at the center of the heat shrink sleeve 2. The threaded area 4 engages with the threaded end of the support pin 5, and a suitable gap is reserved between the support pin 5 and the mating hole 6 to allow for a transitional fit between the support pin 5 and the heat shrink sleeve 2. This facilitates easy and precise insertion of the support pin 5 into the mating hole 6 by the operator, ensuring a stable connection between the support pin 5 and the heat shrink sleeve 2. Consequently, the support pin 5 and the heat shrink sleeve 2 can be inserted into the snap-fit ​​hole 8 synchronously and stably, achieving precise positioning of the mounting plate 7 to the fins of the water-cooled wall 9. Simultaneously, the support pin 5 can also be interference-fitted with the heat shrink sleeve 2 to further improve the connection stability between the support pin 5 and the heat shrink sleeve 2. This connection stability can also be guaranteed without the threaded area 4.

[0025] like Figure 3 As shown, the heat shrink sleeve 2 and the support pin 5 are inserted into the snap-fit ​​hole 8 to a depth of one-tenth or two-tenths of the total length of the support pin 5. This ensures that the mounting plate 7 is accurately positioned to the fins of the water-cooled wall 9, while also cleverly maintaining a certain distance between the mounting plate 7 and the water-cooled wall 9. This facilitates the subsequent pouring of fluid materials between the water-cooled wall 9 and the mounting plate 7, making it easier for the operators to complete the further connection and positioning of the mounting plate 7 and the water-cooled wall 9.

[0026] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A support nail for a waste incinerator refractory hanging plate, characterized by: It has a support pin (5) that can be fixed to the wing of the water-cooled wall (9), and the support pin (5) can cooperate with the mounting plate (7) to position the mounting plate (7) on the water-cooled wall (9); The bearing nail (5) is provided with a heat shrink sleeve (2) on its outer periphery. The shrinkage ratio of the heat shrink sleeve (2) when heated is greater than 4:1, so that the gap between the mounting plate (7) and the bearing nail (5) will increase after being heated.

2. The support nail for the refractory hanging plate of a waste incinerator as described in claim 1, characterized in that: The heat shrink sleeve (2) is made of plastic or rubber.

3. A support stud for a waste incinerator refractory panel according to claim 1, characterised in that: The bearing nail (5) and the mating hole (6) at the center of the heat shrink sleeve (2) are detachably connected together.

4. A support stud for a waste incinerator refractory panel according to claim 3, characterised in that: The bearing pin (5) is fitted with the heat shrink sleeve (2) and a threaded area (4) is provided in the mating hole (6) to be threaded to the end of the bearing pin (5) away from the water-cooled wall (9).

5. A support stud for a waste incinerator refractory panel according to claim 3, wherein: The bearing pin (5) is interference-fitted with the heat shrink sleeve (2).

6. The support nail for the refractory hanging plate of a waste incinerator as described in claim 1, characterized in that: The heat shrink sleeve (2) has a flared end (3) at the end away from the water-cooled wall (9) to increase the force of the bearing nail (5) pressing against the mounting plate (7).

7. A support stud for a waste incinerator refractory panel according to claim 1, wherein: The amount by which the bearing nail (5) is inserted into the snap-fit ​​hole (8) on the mounting plate (7) accounts for one-tenth to two-tenths of the total length of the bearing nail (5).

8. A support stud for a waste incinerator refractory panel according to claim 1, wherein: The bearing nail (5) is fixed to one end of the water-cooled wall (9) and has a welded chamfer (1).

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