Sealing structure of pit furnace for heating refractory material

Abstract

The utility model relates to the technical field of refractory brick production, in particular to a pit furnace sealing structure for heating refractory materials, which comprises a furnace body, the upper end of the furnace body is fixedly connected with an annular supporting plate, a sealing cover plate is arranged on the upper side of the supporting plate, and a sealing structure is arranged between the supporting plate and the sealing cover plate. The sealing structure comprises a mounting groove, a first sealing strip, waste particles and a second sealing strip, the mounting groove is annularly formed in the middle of the upper surface of the supporting plate, the first sealing strip is annular, and the lower end and the side face of the first sealing strip are welded and fixed to the side wall of the mounting groove; the waste particle materials, the first sealing strip and the second sealing strip are matched to seal the gap between the sealing cover plate and the furnace body, the waste particle materials, the first sealing strip and the second sealing strip can achieve a good sealing effect under the long-term high-temperature environment and smoke fumigation, the waste particle materials are convenient to replace, the replacement cost is low, and the waste particle materials are convenient to replace. And the replaced waste granules are convenient to treat.

Description

TECHNICAL FIELD

[0001] The utility model relates to refractory brick production technical field, concretely relates to a well type furnace sealing structure for heating refractory material. BACKGROUND

[0002] In the steel smelting industry, the use of refractory bricks and other refractory materials is very wide. In the process of producing refractory bricks and other refractory materials, the refractory materials need to be soaked in pitch, which can improve the performance of the refractory materials (pitch soaking can block the open pores of the refractory materials, increase the carbon content, and thus improve the strength, thermal shock stability and corrosion resistance of the refractory materials). Next, the refractory materials soaked in pitch need to be heated (baked or dry distillation), the main purpose of which is to volatilize harmful substances in the pitch soaked in the refractory materials, and at the same time, it is beneficial to the solidification of carbon in the pitch soaked in the refractory materials, thereby further enhancing the strength, thermal shock stability and corrosion resistance of the refractory materials. Currently, the heating of refractory materials mainly relies on well type furnaces. The furnace pot of the well type furnace is in the shape of a well, with an upper cover (the upper cover can open the well type furnace by lifting and turning). When heating, the refractory bricks and other refractory materials are placed in the furnace pot, and then the upper cover covers the well type furnace. The smoke gas volatilized from the refractory materials is discharged from the exhaust pipe.

[0003] The sealing structure of the existing well type furnace is to add a ring of rock wool at the joint between the upper cover and the furnace mouth of the well type furnace for sealing. However, the rock wool is easily contaminated with tar in the smoke gas under the action of the smoke gas for a long time, and thus loses its elasticity and sealing effect. Moreover, the replacement process is relatively complicated, the replacement efficiency is relatively low, and the replacement cost is relatively high.

[0004] Therefore, it is necessary to invent a well type furnace sealing structure for heating refractory materials to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a well type furnace sealing structure for heating refractory materials to solve the problem of rock wool losing its elasticity and sealing effect due to contamination with tar in the smoke gas under the action of the smoke gas for a long time, and the replacement process being relatively complicated, the replacement efficiency being relatively low, and the replacement cost being relatively high.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a well type furnace sealing structure for heating refractory materials, comprising a furnace body, the upper end of the furnace body is fixedly connected with a support plate in the shape of a ring, the upper side of the support plate is provided with a sealing cover plate, a sealing structure is arranged between the support plate and the sealing cover plate, the sealing structure comprises a mounting groove, a first sealing strip, waste granular material and a second sealing strip, the mounting groove is annularly arranged at the middle position of the upper surface of the support plate, the first sealing strip is annular, and the lower end and the side surface of the first sealing strip are fixedly welded with the side wall of the mounting groove.

[0007] By adopting the above technical scheme, the waste granular material is filled in the second sealing strip, then the first sealing strip and the second sealing strip are embedded with each other, at this time the waste granular material is distributed in the gap between the first sealing strip and the second sealing strip, the gap between the sealing cover plate and the furnace body is sealed, and the waste granular material, the first sealing strip and the second sealing strip can achieve good sealing effect under long-term high-temperature environment and smoke fumigation, the waste granular material is convenient to replace, the replacement cost is low, and the replaced waste granular material is convenient to process.

[0008] Optionally, the upper surface of the first sealing strip is provided with a sealing groove, and the waste granular material is filled in the inside of the sealing groove.

[0009] Optionally, the second sealing strip is composed of two groups of annular sealing plates, and the upper end of the second sealing strip is welded and fixed to the lower surface of the sealing cover plate.

[0010] Optionally, the lower end of the second sealing strip is inserted into the inside of the waste granular material.

[0011] By adopting the above technical scheme, the waste granular material fills the entire sealing groove, at this time when the second sealing strip is inserted into the inside of the sealing groove, the waste granular material is extruded, so that the waste granular material is tightly distributed in the gap between the first sealing strip and the second sealing strip.

[0012] Optionally, the first discharge groove is provided with two groups of first discharge grooves which are left-right symmetrical, and the side surface of the supporting plate is provided with two groups of second discharge grooves which are left-right symmetrical.

[0013] Optionally, the lower end of the first discharge groove is communicated with one end of the inside of the second discharge groove, and the inside of the second discharge groove is inserted with a sealing plug.

[0014] By adopting the above technical scheme, the first discharge groove and the second discharge groove cooperate to clean the waste granular material in the inside of the second sealing strip, and the sealing plug is used to seal the second discharge groove during the filling process of the waste granular material.

[0015] Optionally, the rear side position of the outer end of the second discharge groove is rotatably connected with a fixing rod, and the front side position of the outer end of the second discharge groove is fixedly connected with a first clamping block.

[0016] Optionally, the outer end of the sealing plug is fixedly connected with a plurality of second clamping blocks, and the fixing rod is clamped in the inside of the first clamping block and the second clamping block.

[0017] By adopting the above technical scheme, after the sealing plug is inserted into the inside of the second discharge groove, the fixing rod is rotated to the front side, the fixing rod is clamped in the inside of the first clamping block and the second clamping block, and the sealing plug is fixed.

[0018] In the above technical solutions, the utility model provides technical effect and advantage:

[0019] 1. The utility model discloses a first sealing strip and second sealing strip are mutually embedded, at this time, the waste granular material is distributed in the gap between the first sealing strip and the second sealing strip, and the gap between the sealing cover plate and the furnace body is sealed, the waste granular material, the first sealing strip and the second sealing strip can realize better sealing effect under long -term high -temperature environment and flue gas fumigation, and the waste granular material is convenient to replace, and the replacement cost is lower, and the replaced waste granular material is convenient to handle.

[0020] 2. The utility model discloses a first discharge groove and second discharge groove are set up, in the process of cleaning waste granular material, the sealing plug can be directly taken down, at this time, the waste granular material is discharged outward through the first discharge groove and the second discharge groove, further improve the convenience of the maintenance of the sealing structure, improve the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the sealing structure structure schematic of the utility model Figure 1 (The sealing cover plate sealing state);

[0023] Figure 3 It is the sealing structure structure schematic of the utility model Figure 2 (The sealing cover plate separation state);

[0024] Figure 4 It is the structure schematic diagram of A in the utility model Figure 2 ;

[0025] Figure 5 It is the structure schematic diagram of B in the utility model Figure 3 ;

[0026] Figure 6 It is the discharge groove structure schematic diagram of the utility model;

[0027] Figure 7 It is the structure schematic diagram of C in the utility model Figure 6 .

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, furnace body;2, support plate;21, installation groove;22, first sealing strip;23, waste granular material;24, first discharge groove;25, second discharge groove;26, fixed link;27, first clamping block;28, sealing plug;29, second clamping block;3, sealing cover plate;31, second sealing strip. DETAILED DESCRIPTION

[0030] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0031] The utility model provides a kind of refractory heating with well type furnace sealing structure as Figures 1 to 5 As shown in a kind of refractory heating with well type furnace sealing structure, including furnace body 1, the upper end of furnace body 1 is fixedly connected with annular support plate 2, the upside of support plate 2 is provided with sealing cover plate 3, sealing structure is provided between support plate 2 and sealing cover plate 3, sealing structure includes installation groove 21, first sealing strip 22, waste granular material 23 and second sealing strip 31, installation groove 21 is annular and is arranged in the middle position of the upper surface of support plate 2, first sealing strip 22 is annular, the lower end and the side of first sealing strip 22 are welded and fixed with the side wall of installation groove 21, the upper surface of first sealing strip 22 is provided with sealing groove, waste granular material 23 is filled in the inside of sealing groove, second sealing strip 31 is composed of two groups of annular sealing plates, the upper end of second sealing strip 31 is welded and fixed with the lower surface of sealing cover plate 3, the lower end of second sealing strip 31 is inserted in the inside of waste granular material 23.

[0032] Among them, the section of first sealing strip 22 is "H" shape, after inserting first sealing strip 22 into the inside of installation groove 21, first sealing strip 22 is fixed with support plate 2 by welding, and second sealing strip 31 is two groups of annular sealing plates, the upper end of two groups of annular sealing plates is welded and fixed with the lower surface of sealing cover plate 3.

[0033] Specifically, in the process of sealing furnace body 1 and sealing cover plate 3, waste granular material 23 is filled into the sealing groove in the upper end of first sealing strip 22, at this time, sealing cover plate 3 is rotated to the upside of furnace body 1, then sealing cover plate 3 is moved downward, at this time, two groups of annular sealing plates on the lower surface of sealing cover plate 3 are inserted into waste granular material 23 in the inside of sealing groove, with the continuous insertion of annular sealing plate, annular sealing plate will extrude waste granular material 23 to both sides, and sealing cover plate 3 extrudes waste granular material 23 to the downside, so that waste granular material 23 is tightly filled in the gap between two groups of annular sealing plates and the left and right inner walls of sealing groove, effectively seal the gap between sealing cover plate 3 and furnace body 1, and in the long-term use process, waste granular material 23 is less affected by high-temperature environment and smoke, always maintains good sealing property, and in the process of sealing structure maintenance, first sealing strip 22, second sealing strip 31 and waste granular material 23 are easy to clean and maintain, and the maintenance cost is lower.

[0034] Participate Figure 1 , Figure 6 And Figure 7The inner bottom wall of the first sealing strip 22 is provided with two groups of left-right symmetrical first discharge grooves 24, the side surface of the support plate 2 is provided with two groups of left-right symmetrical second discharge grooves 25, the lower end of the first discharge groove 24 is in communication with the inner side end of the second discharge groove 25, the second discharge groove 25 is inserted with a sealing plug 28, the rear side position of the outer end of the second discharge groove 25 is rotationally connected with a fixing rod 26, the front side position of the outer end of the second discharge groove 25 is fixedly connected with a first clamping block 27, the outer side end of the sealing plug 28 is fixedly connected with a plurality of second clamping blocks 29, and the fixing rod 26 is clamped in the interiors of the first clamping block 27 and the second clamping block 29.

[0035] In addition, in the process of cleaning and maintaining the sealing structure, the fixing rod 26 is rotated to the rear side, at this time, the sealing plug 28 is directly pulled outward, and then the waste granular material 23 in the interior of the sealing groove is sequentially discharged outward through the first discharge groove 24 and the second discharge groove 25, thereby facilitating the cleaning of the waste granular material 23 in the interior, and the waste water generated in the cleaning process can also be discharged through the first discharge groove 24 and the second discharge groove 25, effectively improving the convenience of cleaning and maintenance, and the discharged waste granular material 23 is convenient to handle, and the waste granular material 23 can be replaced by sand or soil according to the use condition, further improving the use convenience and reducing the use cost.

[0036] Meanwhile, when the waste granular material 23 is filled into the interior of the sealing groove, the sealing plug 28 is inserted into the interior of the second discharge groove 25, at this time, the fixing rod 26 is rotated to the front side, the fixing rod 26 is clamped in the interiors of the first clamping block 27 and the second clamping block 29, and the sealing plug 28 is tightly fixed in the interior of the second discharge groove 25.

[0037] The working principle of the utility model is: by embedding the first sealing strip 22 and the second sealing strip 31, the waste granular material 23 is distributed in the gap between the first sealing strip 22 and the second sealing strip 31, the gap between the sealing cover plate 3 and the furnace body 1 is sealed, the waste granular material 23, the first sealing strip 22 and the second sealing strip 31 can realize good sealing effect under long-term high-temperature environment and smoke fumigation, the waste granular material 23 is convenient to replace and has low replacement cost, the replaced waste granular material 23 is convenient to handle, in addition, the waste granular material 23 can be discharged outward through the first discharge groove 24 and the second discharge groove 25, further improving the convenience of maintaining the sealing structure and improving the maintenance efficiency.

[0038] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A sealing structure for a pit furnace for heating refractory materials, comprising a furnace body (1), characterized in that: The upper end of the furnace body (1) is fixedly connected to a ring-shaped support plate (2), a sealing cover plate (3) is provided on the upper side of the support plate (2), and a sealing structure is provided between the support plate (2) and the sealing cover plate (3), the sealing structure comprising a mounting groove (21), a first sealing strip (22), waste granular material (23) and a second sealing strip (31), the mounting groove (21) being ring-shaped and opening in the middle of the upper surface of the support plate (2), the first sealing strip (22) being ring-shaped, and the lower end and side surface of the first sealing strip (22) being welded and fixed to the side wall of the mounting groove (21).

2. The sealing structure of a pit furnace for heating refractory materials according to claim 1, characterized in that: A sealing groove is provided on the upper surface of the first sealing strip (22), and the waste granular material (23) is filled in the sealing groove.

3. The sealing structure of a pit furnace for heating refractory materials according to claim 2, characterized in that: The second sealing strip (31) is composed of two groups of annular sealing plates, and the upper end of the second sealing strip (31) is welded and fixed to the lower surface of the sealing cover plate (3).

4. A sealing structure for a pit-type furnace for heating refractory materials according to claim 3, characterized in that: The lower end of the second sealing strip (31) is inserted into the interior of the waste granular material (23).

5. The sealing structure of a pit furnace for heating refractory materials according to claim 1, characterized in that: Two groups of left-right symmetrical first discharge grooves (24) are formed on the inner bottom wall of the first sealing strip (22), and two groups of left-right symmetrical second discharge grooves (25) are formed on the side surface of the support plate (2).

6. A sealing structure for a pit-type furnace for heating refractory materials according to claim 5, characterized in that: The lower end of the first discharge trough (24) is connected to the inner end of the second discharge trough (25), and a sealing plug (28) is inserted into the interior of the second discharge trough (25).

7. A sealing structure for a pit-type furnace for heating refractory materials according to claim 6, characterized in that: The rear side of the outer end of the second discharge trough (25) is rotatably connected to a fixing rod (26), and the front side of the outer end of the second discharge trough (25) is fixedly connected to a first clamping block (27).

8. A sealing structure for a pit-type furnace for heating refractory materials according to claim 7, characterized in that: One end of the outer side of the sealing plug (28) is fixedly connected to a plurality of second clamping blocks (29), and the fixing rod (26) is clamped inside the first clamping block (27) and the second clamping block (29).

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