CN218155584U - Kiln with recyclable hot gas - Google Patents

Abstract

The utility model provides a recoverable kiln of steam, including the calcination tunnel and the stoving tunnel that set up side by side. And an air inlet pipeline is arranged at the top of the roasting tunnel. The tail part of the air inlet pipeline is connected with an air blower, and the head part of the air inlet pipeline is in butt joint with the front end opening of the roasting tunnel through a bent pipe. And the top of the tail part of the roasting tunnel is provided with an exhaust port and connected with an exhaust pipeline. And the exhaust pipeline penetrates through the air inlet pipeline and then extends into the drying tunnel. And a chimney is arranged at the tail part of the drying tunnel. The utility model discloses in, the steam that the calcination tunnel produced passes through in exhaust duct carries the drying kiln stove for the stoving of fragment of brick body and preheating can be retrieved the waste gas heat that the calcination tunnel produced, simultaneously, when waste gas in transportation process, during through the air-supply line, can with the heat conduction of part to the new trend in the air-supply line, can reduce the thermal absorbed quantity of new trend in the calcination tunnel, further realize waste gas heat's recycle.

Description

Kiln with recyclable hot gas

Technical Field

The utility model relates to a recoverable kiln of steam.

Background

The production of fragment of brick needs to be fired, and before firing, still need to dry and preheat the fragment of brick body, through drying and preheating, reducible fragment of brick is heated the uneven problem that produces the crackle when firing, even damages.

The mass firing of bricks generally adopts a tunnel kiln, and can fire a large number of bricks simultaneously. And when the tunnel kiln is produced, a large amount of fuel gas is used, and the energy consumption is high. Some kiln manufacturers on the market improve the kiln to reduce energy consumption, and a large amount of high-temperature waste gas in the production process is recovered and used for drying brick blanks, so that heat in the waste gas is utilized, and the aims of saving energy and reducing consumption are fulfilled. However, the existing brick-firing kiln is too monotonous in hot gas recycling, only used for drying, and less in heat recycling, or, when the heat recycling rate is high and has various applications, the structure is often relatively complex, such as laying a complex pipeline structure, or equipping energy conversion equipment with high cost, so that the cost of the kiln is increased, and when the kiln is used, the equipped equipment is easily damaged due to a high-temperature environment, so that the use of the kiln is inconvenient, and thus, the existing kiln needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem, provide a simple structure, heat recovery volume is many and not fragile fragment of brick firing kiln.

A kiln with recyclable hot gas comprises a roasting tunnel and a drying tunnel which are arranged side by side.

And an air inlet pipeline which is paved from the tail part to the head part is arranged at the top part of the roasting tunnel. The tail part of the air inlet pipeline is connected with an air blower, and the head part of the air inlet pipeline is in butt joint with an opening at the front end of the roasting tunnel through a bent pipe, namely, the roasting tunnel introduces fresh air through the air blower and the air inlet pipeline.

And the top of the tail part of the roasting tunnel is provided with an exhaust port and is connected with an exhaust pipeline. The air inlet end of the exhaust pipeline penetrates into the air inlet pipeline at a position close to the tail part of the air inlet pipeline, the middle part of the exhaust pipeline is laid along the air inlet pipeline, the air outlet end of the exhaust pipeline penetrates out of the air inlet pipeline at a position close to the head part of the air inlet pipeline and extends to the top opening of the front end of the drying tunnel, and hot air in the roasting tunnel can be introduced into the drying tunnel.

And a chimney is arranged at the tail part of the drying tunnel.

The utility model discloses in, the steam that the calcination tunnel produced passes through in exhaust duct carries the drying kiln stove for the stoving of fragment of brick body and preheating can be retrieved the waste gas heat that the calcination tunnel produced, simultaneously, when waste gas in transportation process, during through the air-supply line, can conduct the new trend in the air-supply line with the heat of part, improve the temperature of new trend, can reduce the thermal absorbed quantity of new trend in the calcination tunnel, further realize waste gas heat's recycle.

Preferably, the air inlet pipeline is a square pipeline, is stably installed, is installed at the top of the roasting tunnel, and is covered with a heat insulation layer at the periphery, so that heat loss can be avoided.

Preferably, the exhaust duct is a circular metal duct.

Preferably, the periphery of the middle section of the exhaust pipeline is provided with radiating blades, and the direction of the radiating blades is consistent with that of the air inlet pipeline, so that the heat exchange efficiency can be improved.

Preferably, the blower is installed at the tail of the roasting tunnel through a bracket.

Preferably, doors are arranged at two ends of the roasting tunnel and the drying tunnel, and the door with the opening at the front end of the roasting tunnel is provided with an insertion hole corresponding to the bent pipe of the air inlet pipeline.

Preferably, the door comprises the translation door that opens and shuts about both sides, the upper and lower both ends of translation door are passed through the track spacing, are convenient for open and shut.

Preferably, for convenience of installation and use, the translation doors at the same end of the roasting tunnel and the drying tunnel adopt the same set of rails.

Preferably, the side parts of the roasting tunnel and the drying tunnel are provided with side doors and air vents. The side door and the air vent are both provided with openable sealing doors.

Preferably, the chimney is connected to an external dust filter to filter dust in the exhaust gas.

From the above description, the present invention has the following advantages:

1. the hot gas generated by the roasting tunnel is conveyed into the drying kiln through the exhaust pipeline for drying and preheating the brick body, the heat of the waste gas generated by the roasting tunnel can be recovered, meanwhile, when the waste gas passes through the air inlet pipeline in the conveying process, part of heat can be conducted into the fresh air in the air inlet pipeline, the temperature of the fresh air is improved, the heat absorption amount of the fresh air in the roasting tunnel can be reduced, and the heat of the waste gas can be further recycled;

2. the structure is simple, complex heat exchange equipment is not required, and the maintenance frequency of later use is reduced;

3. the excessive exposure of the high-temperature exhaust pipeline is avoided, and the safety of the working environment is improved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it.

Wherein:

FIG. 1 is an isometric view of a hot gas recovery kiln;

FIG. 2 is a second axial side view of a kiln with hot gas recycling;

FIG. 3 is a third axial side view of a hot gas recycling kiln; (hidden part air inlet pipe)

FIG. 4 is an elevational view of a hot gas recyclable kiln;

FIG. 5 is a side view of a hot gas recyclable kiln I;

FIG. 6 is a second side view of a kiln with hot gas recycling;

FIG. 7 is a top plan view of a hot gas recovery kiln;

FIG. 8 is a bottom view of a hot gas recyclable kiln;

FIG. 9 is a first cross-sectional view of a kiln with hot gas recovery;

FIG. 10 is a second cross-sectional view of a hot gas recovery kiln;

the designations in fig. 1 to 10 are respectively: the device comprises a roasting tunnel 1, an exhaust port 11, a drying tunnel 2, a top opening 21, a chimney 22, an air inlet pipeline 3, a bent pipe 31, an air blower 4, an exhaust pipeline 5 and a radiating blade 51.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 10, a hot gas recycling kiln includes a roasting tunnel 1 and a drying tunnel 2 arranged side by side.

Preferably, side doors and air vents (not shown) are arranged at the side parts of the roasting tunnel 1 and the drying tunnel 2. The side door and the air vent are both provided with openable sealing doors. The roasting tunnel 1 is equipped with a gas burner and is connected to the gas, and this type of tunnel or kiln belongs to the prior art and is not described herein again.

And an air inlet pipeline 3 which is laid from the tail part to the head part is arranged at the top of the roasting tunnel 1. The tail part of the air inlet pipeline 3 is connected with an air blower 4, and the head part of the air inlet pipeline is butted with the front end opening of the roasting tunnel 1 through a bent pipe 31, namely, the roasting tunnel 1 introduces fresh air through the air blower 4 and the air inlet pipeline 3.

In an embodiment, the air inlet duct 3 is a square duct, is stably installed, is installed at the top of the roasting tunnel, and is covered with a heat insulation layer at the periphery thereof, so that heat loss can be avoided.

And the top of the tail part of the roasting tunnel 1 is provided with an exhaust port 11 and is connected with an exhaust pipeline 5. The air inlet end of the exhaust pipeline 5 penetrates into the air inlet pipeline 3 at a position close to the tail part of the air inlet pipeline 3, the middle part of the exhaust pipeline 5 is laid along the air inlet pipeline 3, the air outlet end of the exhaust pipeline 5 penetrates out of the air inlet pipeline 3 at a position close to the head part of the air inlet pipeline 3 and extends to the top opening 21 at the front end of the drying tunnel 2, and hot air in the roasting tunnel 1 can be introduced into the drying tunnel 2.

In one embodiment, the exhaust duct 5 is a circular metal duct, and the periphery of the middle section of the exhaust duct 5 is provided with the heat dissipating blades 51, and the direction of the heat dissipating blades 51 is the same as the direction of the air inlet duct 3, so that the heat exchange efficiency can be improved.

A chimney 22 is arranged at the tail of the drying tunnel 2, and preferably, the chimney 22 is connected with an external dust filter and can filter dust in waste gas.

In one embodiment, doors are provided at both ends of the baking tunnel 1 and the drying tunnel 2, and the door opening at the front end of the baking tunnel 1 is provided with an insertion opening corresponding to the bent pipe 31 of the air inlet duct 3. Preferably, the door comprises the translation door that opens and shuts about both sides, the upper and lower both ends of translation door are spacing through the track, are convenient for open and shut. Meanwhile, in order to facilitate installation and use, the translation doors at the same ends of the roasting tunnel 1 and the drying tunnel 2 adopt the same group of tracks.

The utility model discloses in, the steam that calcination tunnel 1 produced passes through exhaust duct 5 and carries in the drying kiln for the stoving of fragment of brick body and preheating can be retrieved the waste gas heat that calcination tunnel 1 produced, simultaneously, when waste gas in transportation process, when intake stack 3, can with the heat conduction of part to the new trend in the intake stack 3, improve the temperature of new trend, can reduce the thermal absorbed quantity of new trend in the calcination tunnel, further realize the thermal recycle of waste gas. The above description is for illustrative purposes only, and it is obvious that the present invention is not limited by the above embodiments, and the present invention is not limited by the above description, and the present invention is applicable to other situations without any improvement or any substantial improvement.

Claims (10)

1. A kiln with recyclable hot gas is characterized by comprising a roasting tunnel and a drying tunnel which are arranged side by side;

an air inlet pipeline laid from the tail to the head is arranged at the top of the roasting tunnel; the tail part of the air inlet pipeline is connected with an air blower, and the head part of the air inlet pipeline is butted with the front end opening of the roasting tunnel through a bent pipe;

the top of the tail part of the roasting tunnel is provided with an exhaust port and is connected with an exhaust pipeline; the air inlet end of the exhaust pipeline penetrates into the air inlet pipeline at a position close to the tail part of the air inlet pipeline, the middle part of the exhaust pipeline is laid along the air inlet pipeline, and the air outlet end of the exhaust pipeline penetrates out of the air inlet pipeline at a position close to the head part of the air inlet pipeline and extends to the top opening of the front end of the drying tunnel;

and a chimney is arranged at the tail part of the drying tunnel.

2. The kiln as claimed in claim 1, wherein the air inlet duct is a square duct installed at the top of the firing tunnel and covered with a heat insulating layer.

3. The hot gas recyclable kiln as defined in claim 1, wherein the exhaust duct is a round metal duct.

4. The kiln as claimed in claim 1 or 3, wherein the exhaust duct has a heat dissipating fin around its middle section, and the heat dissipating fin is oriented in the same direction as the air inlet duct.

5. The hot gas recyclable kiln as claimed in claim 1, wherein the blower is mounted at the end of the firing tunnel by a bracket.

6. The hot gas recycling kiln as claimed in claim 1, wherein doors are provided at both ends of the firing tunnel and the drying tunnel, and the door opened at the front end of the firing tunnel is provided with an insertion opening corresponding to the bent pipe of the air inlet duct.

7. The kiln capable of recycling hot air as claimed in claim 6, wherein the door is composed of a translation door with two sides opening and closing left and right, and the upper end and the lower end of the translation door are limited by rails.

8. The hot gas recycling kiln as claimed in claim 7, wherein the translation doors at the same end of the roasting tunnel and the drying tunnel are provided with the same set of rails.

9. The kiln capable of recycling the hot gas as claimed in claim 1, wherein the side parts of the roasting tunnel and the drying tunnel are provided with side doors and air vents; the side door and the air vent are both provided with openable sealing doors.

10. The hot gas recyclable kiln as recited in claim 1 wherein the chimney is connected to an external dust filter.

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