CN216523085U - Detachable incinerator top structure with refractory castable - Google Patents

Abstract

The utility model discloses a detachable incinerator top structure with refractory castable, which comprises a burner, a hearth and a slag discharge port which are sequentially connected from top to bottom, wherein the hearth is connected with a header, auxiliary spray gun holes are distributed around the hearth, the auxiliary spray gun holes and a main burner in the burner are connected to the detachable incinerator top steel structure through flange connectors, and the lower part of the detachable incinerator top steel structure is lined with multiple layers of refractory materials and refractory castable. According to the detachable incinerator top structure with the refractory castable, the construction of large-area furnace top refractory materials is convenient and fast through the detachable furnace top structure, spare parts can be prefabricated on the furnace top part, when the refractory castable needs to be maintained on the used furnace top, the old furnace top can be quickly detached, the furnace top which is manufactured in advance is replaced, the furnace stopping time is greatly shortened, and the utilization rate of an incinerator is remarkably improved.

Description

Detachable incinerator top structure with refractory castable

Technical Field

The utility model relates to the technical field of organic waste liquid and waste gas incineration treatment and waste heat utilization, in particular to a detachable incinerator top structure with refractory castable.

Background

A large amount of organic waste liquid, the waste gas that produce during chemical plant technology production only through high temperature incineration, and the flue gas just can discharge to reach standard after purifying, and the heat of combustible substance in recoverable waste liquid, the waste gas simultaneously, this kind of reasonable structure of burning furnace is to arrange the combustor at the top of furnace, and waste liquid, waste gas spout furnace downwards through the combustor spray gun, easily evenly spread to furnace and stable combustion. In order to keep the combustion temperature of the waste liquid and the waste gas, especially the common waste liquid and the waste gas have low heat value and are difficult to catch fire, the hearth needs to be subjected to heat insulation treatment near the burner port, and refractory materials are built on heating surface pipes or enclosure steel plates. The refractory castable at the top of the hearth works in a suspension state, and after the incinerator is used for a period of time, the refractory castable cracks and even falls off along with the start, stop or load fluctuation of the incinerator, and the incinerator can normally run only by timely repairing or recasting. Because the refractory castable is hung under a furnace top steel structure, a hearth with the depth of dozens of meters is arranged below the furnace top steel structure, the construction operation is difficult, the consumed time is long, the furnace shutdown time is long, when the incinerator is restarted, the incinerator is firstly baked at a low load, the refractory castable is maintained, and the incinerator can start normal production operation after the refractory castable is maintained.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects, reduce the maintenance difficulty of furnace top pouring materials, shorten the maintenance time and improve the utilization rate of the incinerator, the detachable split furnace top structure is adopted, namely, the furnace top provided with the burner and the auxiliary spray gun is separated from a hearth and is connected with the hearth through flange bolts, spare parts can be prefabricated in advance at the furnace top part and the fireproof pouring materials are prepared in advance, when the running furnace top needs to be maintained, the furnace top is easily detached through detaching the connecting bolts and is replaced by the prepared spare parts, and therefore the furnace shutdown time can be greatly reduced.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a take refractory castable's burning furnace roof structure that burns dismantled, this furnace roof steel construction includes by last combustor, furnace and the row's cinder notch that connects gradually under to, and furnace and header connection, its characterized in that: auxiliary spray gun holes are distributed around the hearth, the auxiliary spray gun holes and a main burner in the burner are connected to a detachable furnace top steel structure through flange connectors, and the lower portion of the detachable furnace top steel structure is lined with multiple layers of refractory materials and refractory castable and is connected with a flange fixed on a heating surface of the upper portion of the hearth through a flange through a bolt.

Preferably, the top of the hearth is provided with a hearth upper heating surface, a fixed flange, a flange supporting plate, a flange supporting steel bar and Y-shaped pins are respectively installed on a pipe outside the hearth upper heating surface and a header, a refractory material bearing platform is manufactured around the pipe outside the hearth upper heating surface and the header, a ceramic polycrystalline cotton plate is laid on the upper part of the bearing platform, pure corundum plastic is poured on the lower part of the bearing platform, the bearing platform is of a trapezoidal structure and is used for sealing with a detachable part, and compact corundum pouring materials are arranged at the bottom of the pure corundum plastic.

Preferably, the detachable furnace roof steel structure comprises a bearing and connecting structure consisting of a steel plate flange and a furnace roof rigid beam, the steel plate flange is provided with a flange bolt hole, and the steel plate flange is provided with a main burner, an auxiliary spray gun hole and a connecting flange.

Preferably, the refractory material is a supporting structure consisting of a Y-shaped pin and a pagoda-shaped andalusite corundum anchoring column which are welded on a main burner, the uppermost ceramic polycrystalline cotton plate is attached to a steel plate flange, and the outermost pure corundum castable material in contact with the flue gas of the hearth is made of a light alumina heat-insulating castable material, wherein the total thickness of the refractory material is 500 mm.

Preferably, the steel plate flanges are connected with the fixed flanges through bolts, and refractory ceramic fiber ropes are used as sealing gaskets between the flanges.

Preferably, a refractory ceramic fiber felt is used as a sealing gasket between the fixed part and the detachable part on the bearing platform.

Preferably, the furnace roof rigid beam is welded with a steel plate flange to support refractory materials, a main burner and an auxiliary spray gun hole.

Preferably, four sets of lifting lugs are arranged on the rigid beam of the furnace roof and are used for lifting the detachable furnace roof part during installation or disassembly.

Preferably, a plurality of expansion joints are formed in the flange supporting plate and used for absorbing stress concentration caused by nonuniform thermal expansion of two ends of the steel plate, and the expansion joints are covered by a sealing cover plate bent into an L shape and welded with the flange supporting plate at the periphery.

(III) advantageous effects

Firstly, the construction of furnace top refractory materials of large area is convenient and fast through the adopted detachable furnace top structure, spare parts can be prefabricated on the part of the furnace top, when the used furnace top needs to maintain refractory castable, the old furnace top can be quickly disassembled, and the furnace top which is manufactured in advance is replaced, so that the furnace shutdown time is greatly shortened, and the utilization rate of the incinerator is obviously improved;

secondly, because the furnace top refractory castable can be constructed on the ground and dried in advance, and does not need to be constructed in a suspended state, the construction quality of the refractory castable is better guaranteed, and the cost for building a large number of scaffolds in the hearth is also saved.

Drawings

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

FIG. 1 is an overall structural view of a detachable incinerator roof structure with refractory castable of the present invention;

FIG. 2 is a connecting structure diagram of a sliding plate and a placing table in the furnace top structure of the detachable incinerator with refractory castable of the utility model;

FIG. 3 is a structural diagram of a support plate in the furnace roof structure of a detachable incinerator with refractory castable of the present invention;

FIG. 4 is a connection diagram of left and right side frames in a detachable incinerator top structure with castable refractory of the present invention;

FIG. 5 is a connection diagram of the left and right side frames in the detachable incinerator top structure with castable refractory of the present invention;

FIG. 6 is a connection diagram of the left and right side frames in the furnace roof structure of the detachable incinerator with refractory castable of the utility model.

Illustration of the drawings: 1. a heating surface at the upper part of the hearth; 2. a fixed flange; 3. a bolt; 4. a steel plate flange; 5. a roof rigid beam; 6. lifting lugs; 7a, a flange support plate; 7b, supporting the steel bars by using flanges; 8. sealing the cover plate; 9. a ceramic polycrystalline cotton plate; 10. pure corundum plastic material; 11. compact corundum castable; 12. a pagoda-shaped andalusite corundum anchoring column; 13. pure corundum castable; 14. a Y-shaped pin; 15. light alumina heat preservation castable; 16. a main burner; 17. an auxiliary spray gun orifice; 18. expanding the seam; 19. a burner; 20. a hearth; 21. a slag discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, for the convenience of description, the terms "upper", "lower", "left" and "right" are used to refer to the same direction as the upper, lower, left, right, etc. of the drawings, and the terms "first", "second", etc. are used for descriptive distinction and have no special meaning.

Aiming at the problems in the prior art, as shown in figure 1, a main burner positioned at the top of an incinerator and auxiliary spray guns distributed around the main burner are connected to a detachable furnace top steel structure through flange connectors. The lower part of the detachable furnace top steel structure is lined with a plurality of layers of refractory materials and refractory castable, and is connected with a flange fixed on the heating surface of the upper part of the hearth through a flange by a bolt.

1) Respectively welding and fixing a part of flange (figure 2, piece 2), a flange supporting plate (figure 2, piece 7a), a flange supporting rib plate (figure 2, piece 7a), a Y-shaped pin and the like on a heating surface pipe and a header (figure 2, piece 1) on the upper part of a hearth, manufacturing a refractory material bearing platform on the periphery, laying a ceramic polycrystalline cotton plate (figure 2, piece 9a) on the upper part of the bearing platform, pouring pure corundum plastic material (figure 2, piece 10) on the lower part of the bearing platform, wherein the bearing platform is of a trapezoidal structure (figure 2, part A) and is used for sealing with a detachable part;

2) the detachable part of the furnace top is composed of a steel plate flange (figure 2, a piece 4) and a rigid beam (figure 2, a piece 5) to form a bearing and connecting structure, the steel plate is provided with flange bolt holes and is provided with a main burner (figure 2, a piece 16) and an auxiliary spray gun hole (figure 3, a piece 17) and a connecting flange.

3) The refractory material of the detachable part is a supporting structure formed by a Y-shaped pin (figure 2, a piece 14) and a pagoda-shaped andalusite corundum anchoring column (figure 2, a piece 12) which are welded on a top steel plate (figure 2, a piece 4), and is layered or poured into a required shape. The uppermost layer adopts a ceramic polycrystalline cotton plate (figure 2, a piece 9b) to be attached to a top steel plate, then a light alumina heat-preservation pouring material (figure 2, a piece 15) is adopted, the outermost layer in contact with the smoke of the hearth adopts a pure corundum pouring material (figure 2, a piece 13), the total thickness of a refractory material layer is 500mm, a 45-degree diffusion port is adopted at the position 80mm higher than the lower edge of a central main burner hole, the fuel diffusion is facilitated, and the edge of the refractory pouring material is protected.

4) The detachable part flange (figure 2, piece 4) is connected with the fixed part flange (figure 2, piece 2) through bolts (figure 2, piece 3), and a fireproof ceramic fiber rope is used as a sealing gasket between the flanges.

5) And a refractory ceramic fiber felt is adopted as a sealing gasket between the fixed part and the detachable part on the trapezoid bearing platform (figure 2, part A).

6) The rigid beams (figure 2, piece 5) and the steel plate flanges (figure 2, piece 4) which are arranged in a longitudinal and transverse multi-channel mode are welded to form an integral structure, and the integral structure plays a role in supporting the detachable part of refractory materials and main burners and auxiliary spray gun holes (figure 3, piece 17) erected on the detachable part of refractory materials.

7) And 4 lifting lugs (shown in figure 2 and 6) are arranged on the rigid beam (shown in figure 2 and 5) and are used for lifting the detachable furnace top part during installation or disassembly.

8) The flange supporting plate (figure 2, piece 7a) is provided with a plurality of expansion joints (figure 3, piece 18), the two ends of the absorption steel plate are subjected to stress concentration caused by nonuniform thermal expansion, the expansion joints (figure 3, piece 18) are covered by a sealing cover plate (figure 3, piece 8) bent into an L shape, the periphery of the expansion joints are welded with the supporting plate, and the effects of sealing smoke and compensating the thermal expansion of the flange supporting plate are achieved.

The prefabricated furnace top can be used for construction and drying of the castable on the ground, so that the construction quality of the castable can be better ensured.

Compared with a fixed integrated furnace top structure, the refractory castable of the furnace top is divided into two parts, one part of the refractory castable is fixed on the heating surface structure around the upper part of the hearth, and the other part of the refractory castable is fixed on a detachable furnace top steel structure. Both parts of castable are in contact with high-temperature flue gas, so that the two parts of castable refractory need to have good sealing property. The utility model adopts trapezoidal joint surface sealing, which is not only convenient for the disassembly of the movable part, but also beneficial to the sealing between the refractory castable of the movable part and the fixed part.

The detachable part and the fixed part are connected through flanges, and the flanges are sealed by using refractory ceramic fiber ropes as fillers to form secondary sealing, so that good sealing performance between refractory castable materials is ensured. Not only can ensure that the smoke does not leak to the outside of the hearth, but also can ensure that the cold air outside the hearth does not leak into the hearth.

The weight of the detachable furnace top with the castable reaches 25 tons, so that the detachable furnace top is convenient to carry, lift and install, the rigidity of a steel structure part is ensured, a rigid beam welded by an H-shaped steel combination is arranged on the outer side of a flange steel plate, and a lifting lug is arranged on the beam.

Examples

Referring to fig. 1-6, the utility model provides a detachable incinerator roof structure with refractory castable, the roof structure comprises a burner 19, a hearth 20 and a slag discharge port 21 which are sequentially connected from top to bottom, and the hearth 20 is connected with a header, and the detachable incinerator roof structure is characterized in that: auxiliary spray gun holes 17 are distributed around the hearth 20, the auxiliary spray gun holes 17 and a main burner 16 inside a burner 19 are connected to a detachable furnace top steel structure through flange connecting ports, the lower part of the detachable furnace top steel structure is lined with multiple layers of refractory materials and refractory castable, and the detachable furnace top steel structure is connected with a flange fixed on a heating surface 1 on the upper part of the hearth through a flange through bolts 3.

Referring to fig. 1 and 2, a hearth upper heating surface 1 is arranged at the top of a hearth 20, a fixed flange 2, a flange supporting plate 7a, a flange supporting steel bar 7b and a Y-shaped pin 14 are respectively installed on a pipe outside the hearth upper heating surface 1 and a header, a refractory material bearing platform is manufactured around the pipe outside the hearth upper heating surface 1 and the header, a ceramic polycrystalline cotton plate 9 is laid on the upper portion of the bearing platform, pure corundum plastic 10 is poured on the lower portion of the bearing platform, the bearing platform is of a trapezoidal structure and is used for sealing with a detachable portion, and dense corundum castable 11 is arranged at the bottom of the pure corundum plastic 10.

Referring to fig. 2, the detachable furnace top steel structure is a bearing and connecting structure composed of a steel plate flange 4 and a furnace top rigid beam 5, the steel plate flange 4 is provided with a flange bolt hole, and the steel plate flange 4 is provided with a main burner 16, an auxiliary spray gun hole 17 and a connecting flange.

Referring to fig. 2, the refractory material is supported by a Y-shaped pin 14 and a pagoda-shaped andalusite corundum anchoring column 12 welded on a main burner 16, an uppermost ceramic polycrystalline cotton plate 9 is attached to a steel plate flange 4, and an outermost layer of pure corundum castable 13 in contact with smoke of a hearth 20 is made of a light alumina insulating castable 15, and the total thickness of the refractory material is 500 mm.

Referring to fig. 2, the steel plate flanges 4 are connected to the fixed flanges 2 by bolts 3, and refractory ceramic fiber ropes are used as gaskets between the flanges.

Referring to fig. 2, a refractory ceramic fiber felt is used as a sealing gasket between the fixed part and the detachable part on the bearing platform.

Referring to fig. 2, the roof rigid beams 5 are welded to the steel plate flanges 4 to support the refractory material, the primary burner 16 and the auxiliary burner ports 17.

Referring to fig. 2, the rigid roof beams 5 are provided with four sets of lifting lugs 6, which lifting lugs 6 are used for lifting the removable roof section during mounting or dismounting.

Referring to fig. 3-6, a plurality of expansion joints 18 are formed in the flange support plate 7a, the expansion joints 18 are used for absorbing stress concentration caused by nonuniform thermal expansion of two ends of a steel plate, the expansion joints 18 are covered by a sealing cover plate 8 bent into an L shape, and the periphery of the expansion joints 18 is welded with the flange support plate 7 a.

Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or processes in the figures are not necessarily required to practice this patent.

Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into multiple sub-modules.

The disclosure is only for the concrete implementation of the patent, but the patent is not limited to the above, and any changes that can be made by those skilled in the art are intended to fall within the protection scope of the patent.

Claims (9)

1. The utility model provides a take incinerator furnace roof structure dismantled of refractory castable, this furnace roof steel construction include by last combustor (19), furnace (20) and row's cinder notch (21) that connect gradually under to, and furnace (20) are connected its characterized in that with the collection case: auxiliary spray gun holes (17) are distributed around the hearth (20), the auxiliary spray gun holes (17) and a main burner (16) inside a burner (19) are connected to a detachable furnace top steel structure through flange connectors, the lower part of the detachable furnace top steel structure is lined with multiple layers of refractory materials and refractory castable, and the detachable furnace top steel structure is connected with a flange fixed on a heating surface (1) on the upper part of the hearth through a flange through bolts (3).

2. The detachable incinerator roof structure with refractory castable of claim 1, wherein: the top of furnace (20) is equipped with furnace upper portion heating surface (1), and installs mounting flange (2), flange backup pad (7a), flange support bar (7b) and Y type pin (14) on the outside pipe of furnace upper portion heating surface (1) and the collection case respectively to make refractory material cushion cap around the outside pipe of furnace upper portion heating surface (1) and collection case, ceramic polycrystal cotton board (9) have been laid on cushion cap upper portion, pure corundum plastic (10) are poured to the lower part, and the cushion cap is the trapezium structure for with can dismantle the sealing of part, the bottom of pure corundum plastic (10) is provided with fine and close corundum castable (11).

3. The detachable incinerator roof structure with refractory castable of claim 1, wherein: the detachable furnace roof steel structure comprises a bearing and connecting structure consisting of a steel plate flange (4) and a furnace roof rigid beam (5), a flange bolt hole is formed in the steel plate flange (4), and a main burner (16), an auxiliary spray gun hole (17) and a connecting flange are installed on the steel plate flange (4).

4. A detachable incinerator roof structure with refractory castable according to claim 3, characterised in that: the refractory material is a supporting structure consisting of a Y-shaped pin (14) and a pagoda-shaped andalusite corundum anchoring column (12) which are welded on a main burner (16), the uppermost ceramic polycrystalline cotton plate (9) is attached to a steel plate flange (4), and the outermost pure corundum castable (13) in contact with the flue gas of a hearth (20) is made of a light alumina heat-insulating castable (15), and the total thickness of the refractory material is 500 mm.

5. A detachable incinerator roof structure with refractory castable according to claim 3, characterised in that: the steel plate flange (4) is connected with the fixed flange (2) through bolts (3), and a fireproof ceramic fiber rope is used as a sealing gasket between the flanges.

6. The detachable incinerator roof structure with refractory castable according to claim 2, characterized in that: and a refractory ceramic fiber felt is used as a sealing gasket between the fixed part and the detachable part on the bearing platform.

7. A detachable incinerator roof structure with refractory castable according to claim 3, characterised in that: the furnace roof rigid beam (5) is welded with the steel plate flange (4) and plays a supporting role for refractory materials, a main burner (16) and an auxiliary spray gun hole (17).

8. The detachable incinerator roof structure with refractory castable of claim 3, characterized in that: four groups of lifting lugs (6) are arranged on the furnace roof rigid beam (5), and the lifting lugs (6) are used for lifting the detachable furnace roof part during installation or disassembly.

9. The detachable incinerator roof structure with refractory castable according to claim 2, characterized in that: the flange supporting plate (7a) is provided with a plurality of expansion joints (18), the expansion joints (18) are used for absorbing stress concentration caused by nonuniform thermal expansion of two ends of the steel plate, the expansion joints (18) are covered by a sealing cover plate (8) bent into an L shape, and the periphery of the expansion joints are welded with the flange supporting plate (7 a).

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