CN218710149U - Coke oven door lining brick capable of reducing smoke emission - Google Patents

Abstract

The utility model relates to a coke oven door lining brick for reducing smoke dust emission, wherein two side surfaces and the outer end surface of the oven door lining brick are provided with through long through grooves along the height direction; the connecting part of the two side surfaces and the inner end surface of the furnace door lining brick is provided with a chamfer angle structure, and the inclined planes at the chamfer angles at the two sides surround the furnace door iron piece, the furnace door knife edge and the furnace door frame at the corresponding side to jointly form 2 air guide channels which are communicated along the height direction. The utility model discloses a set up in furnace gate lining brick both sides and with the outer terminal surface of coke contact and link up the groove, set up air guide channel in the both sides that are close to terminal surface in the furnace gate lining brick, the raw coke oven gas that makes the coking initial stage produce can be rapidly to near gathering of furnace gate to along linking up groove and air guide channel upflow, at last through furnace roof space and tedge outflow coke oven, thereby reduce the smoking phenomenon of furnace gate department production, the environmental protection is effectual.

Description

Coke oven door lining brick capable of reducing smoke emission

Technical Field

The utility model relates to a coke oven door structure, in particular to a lining brick of a coke oven door for reducing smoke emission.

Background

In a large coke oven, a coke oven body consists of a regenerator, chutes, combustion chambers and carbonization chambers which are arranged alternately, and a top brick is arranged at the top of the corresponding carbonization chamber, and the top is provided with a coal charging hole (only arranged for top charging of the coke oven) or a smoke guide hole and a carbon removal hole (only arranged for tamping of the coke oven) and a riser hole. In the coking chamber, the area between the coal charging line and the overhead bricks, which is determined by the coal charging height, is called the furnace top space, and raw coke gas and smoke dust generated in the coal charging and coking processes are led into the ascending pipe through the furnace top space and the coal charging hole circulation space and then led out of the coke furnace through the ascending pipe.

During the coal charging and leveling processes and at the initial stage of coking, a great amount of raw gas carrying dust is generated in the coking chamber, and the raw gas enters the ascending pipe through the furnace top space. Because a large amount of gas is generated in a limited space in a short time, the air pressure of the top space of the carbonization chamber is higher, the phenomena of smoke and fire are generated at the furnace top and the furnace door at the initial stages of coal charging, coal leveling and coking, the environmental pollution and the potential safety hazard are caused, and the environment of the operation area of the furnace top is also seriously worsened.

In order to reduce the phenomenon of escape of raw coke oven gas and smoke dust during coal charging, the existing coke oven is generally provided with a high-pressure ammonia water matched coal charging dust removal system or a coking chamber pressure monotonous system, but the actual field use effect is not ideal, and the raw coke oven gas still emerges from the oven top and the oven door during coal charging of the coke oven.

The Chinese patent application with the application publication number of CN112812786A discloses an energy-saving coke oven door structure, which comprises a coke oven door consisting of door lining bricks and door iron pieces, wherein the door iron pieces comprise a door body, a door fastener, a door sliding plate, a door knife edge and a door web plate, one end of the door knife edge, which is close to a coke oven body, is contacted with an oven door frame on the periphery of the door, and the inner side of the door knife edge is contacted with the door web edge; the surfaces of the furnace door lining bricks, the furnace door frame, the furnace door web plates and the furnace door sliding plates are coated with heat insulation material coatings. The furnace door structure effectively reduces the heat dissipation capacity of the furnace end of the carbonization chamber, and achieves the purposes of saving energy, reducing consumption and improving energy utilization rate.

The patent of the utility model with the granted announcement number of CN201132826Y discloses a U-shaped hollow heat preservation coke oven door lining brick, which comprises a U-shaped brick body and a brick ditch, wherein the U-shaped brick body consists of an arc groove outer brick body and a convex arc inner brick body matched with the arc groove outer brick body, the groove is matched with the convex arc, the inner brick body is a hollow brick body, and the brick ditch is arranged at the outer side of the convex arc inner brick body. The joint part of the outer brick body and the inner brick body is provided with an inner locking hole channel. The inner brick body is a hollow brick body, the heat loss of the coke oven is obviously reduced, the grooves are matched with the convex arcs, and the strength of the whole oven door lining brick is improved. The outer surface of the brick body is not easy to hang tar and is easy to clean, and the labor intensity is reduced.

Therefore, most of the existing furnace door lining brick structures pay attention to the heat preservation function to prevent the heat loss of the coke furnace, but the problem of the smoke dissipation at the furnace door is not considered.

Disclosure of Invention

The utility model provides a reduce coke oven furnace gate lining brick of smoke and dust emission, through set up through the groove in furnace gate lining brick both sides and with the outer terminal surface of coke contact, both sides near terminal surface in the furnace gate lining brick set up air guide channel, the raw coke oven gas that makes the coking initial stage produce can be to near gathering of furnace gate rapidly to along lining up groove and air guide channel and upwards flowing, at last through furnace roof space and tedge outflow coke oven, thereby reduce the smoke and fire phenomenon that furnace gate department produced, environmental protection is effectual.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a coke oven door lining brick for reducing smoke dust emission comprises an oven door lining brick, wherein the outer end surface of the oven door lining brick is contacted with coke, the inner end surface of the oven door lining brick is connected with an oven door iron piece, and two side surfaces of the oven door lining brick are parallel to an oven wall of a coke oven; two side surfaces and the outer end surface of the furnace door lining brick are provided with through long through grooves along the height direction; the connecting part of the two side surfaces and the inner end surface of the furnace door lining brick is provided with a chamfer angle structure, and the inclined planes at the chamfer angles at the two sides surround the furnace door iron piece, the furnace door knife edge and the furnace door frame at the corresponding side to jointly form 2 air guide channels which are communicated along the height direction.

Furthermore, a plurality of through grooves are arranged at intervals on two side faces of the furnace door lining brick.

Further, the cross section of the through groove is rectangular, circular, oval or triangular.

Furthermore, the ratio of the width of the inner end surface to the width of the outer end surface of the furnace door lining brick is 4/5-2/3.

Furthermore, the furnace door lining brick adopts a castable precast block, a high-alumina brick or a clay brick.

Furthermore, two side surfaces and the outer end surface of the furnace door lining brick are respectively provided with a glaze coating layer.

Compared with the prior art, the beneficial effects of the utility model are that:

1) Through set up through groove and air guide channel on the furnace gate lining brick, effectively increase the regional raw coke oven gas flow area of furnace gate, reduce the gas flow resistance, reduced the pressure in the charing chamber of coal charge and coking initial stage, realize the source and administer, effectively reduced the escape of raw coke oven gas and smoke and dust of furnace gate department for coke oven production process is energy-concerving and environment-protective more.

2) Is suitable for top-loading coke ovens, tamping coke ovens and top-loading-tamping two-in-one coke ovens.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a lining brick for a coke oven door for reducing smoke emission.

Description of reference numerals:

in the figure: 1. (furnace door lining brick) side surface 2, (furnace door lining brick) outer end surface 3, (furnace door lining brick) inner end surface 4, through groove 5, furnace door knife edge 6, furnace door frame 7, air guide channel

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in figure 1, the coke oven door lining brick for reducing smoke dust emission comprises the oven door lining brick, wherein the outer end surface 2 of the oven door lining brick is contacted with coke, the inner end surface 3 is connected with an oven door iron piece, and two side surfaces 1 are parallel to the oven wall of a coke oven; two side surfaces 1 and the outer end surface 2 of the furnace door lining brick are provided with through long through grooves 4 along the height direction; the connecting part of the two side surfaces 1 and the inner end surface 3 of the furnace door lining brick is provided with a chamfer angle structure, and the inclined planes at the chamfer angles at the two sides surround the furnace door iron piece, the furnace door knife edge 5 and the furnace door frame 6 at the corresponding sides to jointly form 2 air guide channels 7 which are communicated along the height direction.

Furthermore, a plurality of through grooves 4 are arranged on two side surfaces 1 of the furnace door lining brick at intervals.

Further, the cross section of the through groove 4 is rectangular, circular, oval or triangular.

Furthermore, the ratio of the width of the inner end surface 3 of the furnace door lining brick to the width of the outer end surface 2 is 4/5-2/3.

Furthermore, the furnace door lining brick adopts a castable precast block, a high-alumina brick or a clay brick.

Furthermore, two side surfaces 1 and an outer end surface 2 of the furnace door lining brick are both provided with glaze coating layers.

For making the purpose, technical scheme and technical effect of the embodiment of the utility model clearer, it is now clear, completely described to the technical scheme in the embodiment of the utility model. The embodiments described below are only some embodiments of the present invention, and not all embodiments. In combination with the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative work belong to the protection scope of the present invention.

[ examples ] A

In the embodiment, the lining brick for the oven door of the coke oven for reducing smoke dust emission comprises two side surfaces 1 parallel to the oven wall, an outer end surface 2 contacted with coke, and an inner end surface 3 contacted and connected with an iron piece of the oven door. Through grooves 4 from bottom to top are respectively arranged on the two side surfaces 1 and the outer end surface 2, wherein 2 through grooves 4 are respectively arranged on each side surface 1, 1 through groove 4 is arranged in the middle of the outer end surface 2, and the cross section of each through groove 4 is rectangular.

The two sides of the inner end surface 3 of the furnace door lining brick are provided with chamfer structures, namely the area of the inner end surface 3 is smaller than that of the outer end surface 2, in the embodiment, the ratio of the width (horizontal direction) of the inner end surface 3 of the furnace door lining brick to the width of the outer end surface 2 is 4/5; the chamfer surfaces at the two sides of the furnace door lining brick, the furnace door iron piece, the furnace door knife edge 5 and the furnace door frame 6 jointly enclose an air guide channel 7.

Crude gas generated in the early coking stage in the coking chamber is rapidly gathered near the furnace door, flows upwards along the through groove 4 and the air guide channel 7, and flows out of the coke oven through the furnace top space and the ascending pipe.

In this embodiment, the furnace door lining brick is a precast block made of casting material, and the furnace door lining brick can also be made of other refractory materials with good thermal shock performance, such as high-alumina bricks or clay bricks.

Two side surfaces 1 and an outer end surface 2 of the furnace door lining brick are both subjected to glazing treatment, so that graphite accumulation is avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A coke oven door lining brick for reducing smoke emission comprises a furnace door lining brick, wherein the outer end surface of the furnace door lining brick is in contact with coke, the inner end surface of the furnace door lining brick is connected with a furnace door iron piece, and two side surfaces of the furnace door lining brick are parallel to a furnace wall of a coke oven; the furnace door lining brick is characterized in that through long through grooves are formed in the two side faces and the outer end face of the furnace door lining brick along the height direction; the connecting part of the two side surfaces and the inner end surface of the furnace door lining brick is provided with a chamfer angle structure, and the inclined planes at the chamfer angles at the two sides surround the furnace door iron piece, the furnace door knife edge and the furnace door frame at the corresponding side to jointly form 2 air guide channels which are communicated along the height direction.

2. The coke oven door lining brick for reducing smoke and dust emission according to claim 1, wherein a plurality of through grooves are arranged at intervals on two side surfaces of the door lining brick.

3. The coke oven door lining brick for reducing smoke emission according to claim 1 or 2, wherein the cross-sectional shape of the through groove is rectangular, circular, oval or triangular.

4. The coke oven door lining brick for reducing smoke emission according to claim 1, wherein the ratio of the width of the inner end surface to the width of the outer end surface of the door lining brick is 4/5 to 2/3.

5. The coke oven door lining brick for reducing smoke emission according to claim 1, wherein the door lining brick is made of a castable precast block, a high-alumina brick or a clay brick.

6. The coke oven door lining brick for reducing smoke and dust emission according to claim 1, wherein two side surfaces and an outer end surface of the door lining brick are provided with a glaze coating.

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