Heat preservation device for furnace top expansion gap of heating furnace

Abstract

The utility model discloses a heat preservation device for a furnace top expansion gap of a heating furnace, which relates to the technical field of heating furnaces, and particularly comprises a positioning plate and four limiting rods, the positioning plate is fixedly connected with the limiting rods, the top of the positioning plate is fixedly connected with a protective shell, and the side surface of each limiting rod is fixedly connected with a first storage shell; a first soft shell is fixedly connected between the two opposite first storage shells, and two second storage shells are fixedly connected to the side face of the limiting rod. When the expansion joint is subjected to closed heat preservation, the expansion joint can be subjected to combined heat preservation of various high-temperature-resistant materials, and the expansion joint is sealed according to the characteristics of the expansion joint during heat preservation, so that the problem that the expansion joint cannot be subjected to heat preservation treatment when the expansion joint of the furnace top of the heating furnace is subjected to heat preservation treatment is effectively solved. In the prior art, the expansion gap is filled with a single high-temperature-resistant material so as to carry out heat preservation on the expansion gap, and the single heat preservation material has a single heat preservation effect, so that the heat preservation of the expansion gap is poor, and the ideal requirement cannot be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating furnace, concretely to a heat preservation device for expansion joint of heating furnace roof. BACKGROUND

[0002] The heating furnace is widely used in the heating, drying or softening of food, chemical fiber, petrochemical and other fields. With the increasing environmental protection requirements, the gas heating furnace using clean combustible gas such as natural gas and rock gas as fuel is more and more favored by people. The expansion joint is arranged on the roof of the heating furnace during use. The expansion joint is designed to cope with the thermal expansion and cold shrinkage characteristics of refractory materials at high temperature. The purpose is to improve the service life and production safety of the kiln, reduce or eliminate thermal stress, and reduce the heat loss of the furnace lining to the greatest extent, improve the thermal efficiency of the heating furnace, and reduce fuel consumption, so as to achieve energy saving effect. The insulation layer can protect the refractory material and steel structure of the furnace roof, avoid thermal stress caused by temperature change, and prolong the service life of the furnace roof.

[0003] In the prior art, when the staff performs heat preservation treatment on the expansion joint of the heating furnace roof, a single high-temperature-resistant material is usually filled into the expansion joint to perform heat preservation. However, the heat preservation effect of the single heat preservation material is single, which leads to poor heat preservation of the expansion joint, cannot meet the ideal demand, and after the thermal expansion and cold shrinkage of the expansion joint, the position of part of the heat preservation material is offset and cannot be returned in time, which leads to air circulation and affects the heating effect of the heating furnace. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a heat preservation device for the expansion joint of the heating furnace roof, which solves the problems in the above background art.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model is implemented by the following technical scheme: including positioning plate and four limit rods, the positioning plate is fixedly connected with the limit rod, the top of the positioning plate is fixedly connected with the protective shell, the side surface of the limit rod is fixedly connected with the first storage shell, the first soft shell is fixedly connected between the opposite two first storage shells, the side surface of the limit rod is fixedly connected with two second storage shells, the adjacent four second storage shells are fixedly connected with the second soft shell, and the inside of the protective shell is provided with the filling cotton.

[0008] Optionally, the protective shell is located on the outside of the four limit rods and is fixedly connected with the limit rods, and the material of the protective shell is ceramic fiber cloth.

[0009] Optionally, the material of the first receiving shell and the second receiving shell is ceramic fiber board, and the material of the first soft shell and the second soft shell is ceramic fiber blanket.

[0010] Optionally, the material of the filling cotton is aluminum silicate fiber cotton, the inner side of the protective shell, the outer side of the limiting rod, the outer side of the first receiving shell, the outer side of the first soft shell, the outer side of the second receiving shell and the outer side of the second soft shell are fixedly connected with high-temperature resistant glue, and the filling cotton is fixedly connected with the protective shell, the limiting rod, the first receiving shell, the first soft shell, the second receiving shell and the second soft shell through the high-temperature resistant glue.

[0011] Optionally, the top of the positioning plate is fixedly connected with high-temperature sealing glue, and the material of the positioning plate is high-temperature rubber.

[0012] Optionally, a telescopic rod is fixedly connected between the two first receiving shells and between the two second receiving shells, and the telescopic rod comprises a sleeve, a top rod and a spring.

[0013] Optionally, the top rod is located in the sleeve and is slidably connected with the sleeve, the spring is located in the sleeve, and the two ends of the spring are fixedly connected with the top rod and the sleeve respectively.

[0014] (Three) beneficial effects

[0015] The utility model provides a kind of heat preservation device for heating furnace roof expansion joint, with the following beneficial effects:

[0016] 1, the heat preservation device for heating furnace roof expansion joint, by the setting of positioning plate, protective shell, filling cotton and high-temperature sealing glue, when the device is closed and heat-insulated to expansion joint, it can be combined heat-insulated to expansion joint with multiple high-temperature resistant materials, and it is sealed to expansion joint according to the characteristics of expansion joint when heat-insulated, effectively solve the problem that when the expansion joint of heating furnace roof is heat-insulated, single high-temperature resistant material is filled into the inside of expansion joint to heat-insulate expansion joint, and the heat-insulating effect of single heat-insulating material is single, leading to poor heat-insulation of expansion joint, which cannot meet ideal demand.

[0017] 2, the heat preservation device for heating furnace roof expansion joint, by the setting of limiting rod, first receiving shell, first soft shell, second receiving shell, second soft shell, sleeve, top rod and spring, the device can be fixed in position to multiple heat-insulating materials when being used, and heat-insulating material is moved to make heat-insulating material always adhere to expansion joint, effectively solve the problem that the position of part of heat-insulating material will be deviated after expansion joint is heat-expanded and shrunk, cannot be homed in time, expansion joint is closed, leading to air circulation, which affects the heating effect of heating furnace. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of this utility model from an axial view.

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the axial view of the positioning plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the axial view of the limiting rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the axial cross-section of the limiting rod of this utility model;

[0023] Figure 6 This utility model Figure 5 An enlarged structural diagram of point A.

[0024] In the diagram: 1. Positioning plate; 2. Limiting rod; 3. Protective shell; 4. First storage shell; 5. First soft shell; 6. Second storage shell; 7. Second soft shell; 8. Filling cotton; 9. High-temperature sealant; 10. Telescopic rod; 11. Sleeve; 12. Top rod; 13. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1 to 4The utility model provides technical scheme: a kind of heat preservation device for heating furnace roof expansion joint, including locating plate 1 and four limit rods 2, locating plate 1 fixedly connected limit rod 2, protective shell 3 is located at the outside of four limit rods 2 and fixedly connected limit rod 2, the material of protective shell 3 is ceramic fiber cloth, limit rod 2 side fixedly connected with first storage shell 4, relative two first storage shell 4 between fixedly connected first soft shell 5, limit rod 2 side fixedly connected with two second storage shell 6, adjacent four second storage shell 6 between fixedly connected in second soft shell 7, the material of filling cotton 8 is aluminium silicate fiber cotton, the inside of protective shell 3, the outside of limit rod 2, the outside of first storage shell 4, the outside of first soft shell 5, the outside of second storage shell 6 and the outside of second soft shell 7 are fixedly connected with high temperature resistant glue, filling cotton 8 is fixedly connected protective shell 3, limit rod 2 by high temperature resistant glue, first storage shell 4, first soft shell 5, second storage shell 6 and second soft shell 7, the top of locating plate 1 fixedly connected with high temperature sealant 9, the material of locating plate 1 is high temperature rubber, by the setting of locating plate 1, protective shell 3, filling cotton 8 and high temperature sealant 9, when making the device closed heat preservation to expansion joint, it can be combined heat preservation to expansion joint to multiple high temperature resistant materials, and according to the characteristic of expansion joint to expansion joint is sealed when heat preservation, effectively solve the problem that when heat preservation treatment is carried out to the expansion joint of heating furnace roof, it is usually filled with single high temperature resistant material to the inside of expansion joint, to carry out heat preservation to expansion joint, and single heat preservation material heat preservation effect is single, leading to the heat preservation of expansion joint is not good, reach ideal demand problem.

[0028] When using, the expansion joint in the furnace top is cleaned to ensure that the inside of the expansion joint is free of sundries or dust, and then the filling cotton 8 is placed between the four limiting rods 2, and the filling cotton 8 is connected with the limiting rod 2, the first soft shell 5, the second storage shell 6, the second soft shell 7 and the first storage shell 4 through high-temperature glue, when placing the filling cotton 8, the number of the filling cotton 8 is adjusted according to the size of the expansion joint to avoid too much or too little filling cotton 8, and then the protective shell 3 is wound outside the four limiting rods 2, so that the protective shell 3 seals the scattered filling cotton 8 and is fixedly connected with the limiting rod 2 and the filling cotton 8 through the high-temperature glue on the inside, and then the four limiting rods 2 provided with the protective shell 3 on the outside are placed in the inside of the expansion joint, after the placement is completed, the positioning plate 1 is in contact with the furnace top, at this time, the threaded hole is formed in the inside of the positioning plate 1 to fix the positioning plate with the furnace top, and then the high-temperature sealing glue 9 is placed between the positioning plate 1 and the furnace top, so that the fixing of the device and the expansion joint is completed, after the fixing is completed, the expansion joint can be heat-insulated, when the expansion joint expands or shrinks due to heat or cold, the protective shell 3 and the filling cotton 8 deform to fit the expansion joint, the positioning plate 1 and the high-temperature sealing glue 9 seal the expansion joint to prevent air circulation, and the problem that when the expansion joint of the furnace top of the heating furnace is heat-insulated, single high-temperature-resistant material is often filled into the inside of the expansion joint to heat-insulate the expansion joint, the heat-insulating effect of the single heat-insulating material is single, the heat-insulation of the expansion joint is poor, and the ideal requirement cannot be met is effectively solved.

[0029] Embodiment 2

[0030] Please refer to Figures 4 to 6 The utility model provides technical scheme: a kind of heat-insulating device for expansion joint of heating furnace furnace top, the top of positioning plate 1 is fixedly connected with protective shell 3, the inside of protective shell 3 is equipped with filling cotton 8, the material of first storage shell 4 and second storage shell 6 is ceramic fiber board, the material of first soft shell 5 and second soft shell 7 is ceramic fiber blanket, relative two first storage shell 4 between and relative two second storage shell 6 between are fixedly connected with telescopic rod 10, telescopic rod 10 includes sleeve 11, top rod 12 and spring 13 in the inside, top rod 12 is located in the inside of sleeve 11 and slidingly connects sleeve 11, spring 13 is located in the inside of sleeve 11, the both ends of spring 13 are fixedly connected with top rod 12 and sleeve 11, by the setting of limiting rod 2, first storage shell 4, first soft shell 5, second storage shell 6, second soft shell 7, sleeve 11, top rod 12 and spring 13, the device can position and fix in a position to multiple heat-insulating materials when using, and heat-insulating material is moved to make heat-insulating material always fit expansion joint, effectively solve the problem that the position of part heat-insulating material is deviated after expansion joint expands or shrinks, cannot be homed in time, expansion joint is closed, air circulation is caused, and the heating effect of heating furnace is affected.

[0031] When the expansion joint is cold contracted, the expansion joint extrudes the device, the device is deformed, four limiting rods 2 and the protective shell 3 extrude the filling cotton 8, the expansion joint is sealed, when the limiting rod 2 moves, the contact part of the limiting rod 2 and the positioning plate 1 is deformed because the positioning plate 1 is high-temperature rubber, when the expansion joint is hot expanded, the spring 13 pushes the top rod 12 to move, the sleeve 11 and the top rod 12 push the two opposite first receiving shells 4 and the two opposite second receiving shells 6 to move, the first receiving shell 4 and the second receiving shell 6 push the protective shell 3 to move together with the limiting rod 2, the filling cotton 8 in the interior is moved, the hot expanded expansion joint is sealed, the position of part of the heat preservation material is offset after the expansion joint is hot expanded and cold contracted, the position is not returned in time, the expansion joint is sealed, air circulation is caused, the heating effect of the heating furnace is affected.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A heat insulation device for the expansion joint of a heating furnace roof, comprising a positioning plate (1) and four limiting rods (2), characterized in that: The positioning plate (1) is fixedly connected to the limiting rod (2), the top of the positioning plate (1) is fixedly connected to the protective shell (3), the side of the limiting rod (2) is fixedly connected to the first storage shell (4), the two opposite first storage shells (4) are fixedly connected to the first soft shell (5), the side of the limiting rod (2) is fixedly connected to the two second storage shells (6), the four adjacent second storage shells (6) are fixedly connected to the second soft shell (7), and the inside of the protective shell (3) is filled with cotton (8).

2. The heat insulation device for the expansion joint of a heating furnace roof according to claim 1, characterized in that: The protective shell (3) is located outside the four limiting rods (2) and is fixedly connected to the limiting rods (2). The protective shell (3) is made of ceramic fiber cloth.

3. The heat insulation device for the expansion joint of a heating furnace roof according to claim 1, characterized in that: The first storage shell (4) and the second storage shell (6) are made of ceramic fiber board, and the first soft shell (5) and the second soft shell (7) are made of ceramic fiber blanket.

4. The heat insulation device for the expansion joint of a heating furnace roof according to claim 1, characterized in that: The filling cotton (8) is made of aluminum silicate fiber cotton. The inner side of the protective shell (3), the outer side of the limiting rod (2), the outer side of the first storage shell (4), the outer side of the first soft shell (5), the outer side of the second storage shell (6) and the outer side of the second soft shell (7) are all fixedly connected with high temperature resistant adhesive. The filling cotton (8) is fixedly connected to the protective shell (3), the limiting rod (2), the first storage shell (4), the first soft shell (5), the second storage shell (6) and the second soft shell (7) by high temperature resistant adhesive.

5. The heat insulation device for the expansion joint of a heating furnace roof according to claim 1, characterized in that: The top of the positioning plate (1) is fixedly connected with high-temperature sealant (9), and the material of the positioning plate (1) is high-temperature rubber.

6. The heat insulation device for the expansion joint of a heating furnace roof according to claim 1, characterized in that: Telescopic rods (10) are fixedly connected between the two first storage shells (4) and between the two second storage shells (6). The telescopic rods (10) include a sleeve (11), a top rod (12) and a spring (13).

7. The insulation device for the expansion joint of a heating furnace roof according to claim 6, characterized in that: The push rod (12) is located inside the sleeve (11) and is slidably connected to the sleeve (11). The spring (13) is located inside the sleeve (11), and the two ends of the spring (13) are fixedly connected to the push rod (12) and the sleeve (11) respectively.

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