CN212538748U - Energy-saving environment-friendly double-layer ceramic gas-fired roller kiln - Google Patents
Energy-saving environment-friendly double-layer ceramic gas-fired roller kiln Download PDFInfo
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- CN212538748U CN212538748U CN202021224127.9U CN202021224127U CN212538748U CN 212538748 U CN212538748 U CN 212538748U CN 202021224127 U CN202021224127 U CN 202021224127U CN 212538748 U CN212538748 U CN 212538748U
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Abstract
The utility model belongs to architectural ceramics production field specifically is a double-deck pottery gas firing roller kilns of energy-concerving and environment-protective type. The kiln comprises a kiln body consisting of an upper kiln body, a lower kiln body and an interlayer, wherein the upper kiln body and the lower kiln body are respectively arranged at the upper part and the lower part of the kiln body, and the interlayer is fixedly arranged between the upper kiln body and the lower kiln body. Solves the problems that the prior single-layer gas-fired roller kiln has rich hot air output by a cold air heat exchange device and needs to adopt a method of reducing the air quantity of a fan or dispersing partial hot airThe problem that the cold air storage heat exchange device cannot play a role in full load or cause partial energy waste is solved. The utility model discloses can further energy saving, further reduce interior high fever temperature in the workshop, further practice thrift gas energy consumption reduction in production cost, reduce SO2And nitrogen oxides and other pollution gases are discharged, so that the production efficiency is improved, the land area can be saved, and better economic and social benefits are realized.
Description
Technical Field
The utility model belongs to architectural ceramics production field specifically is a double-deck pottery gas firing roller kilns of energy-concerving and environment-protective type.
Background
In recent years, the architectural ceramic industry is in need of more and more strict requirements of national environmental protection policies, tension in raw material supply, electric charges, gas price rise, higher and higher product cost, further compression of enterprise profits and continuous decline of product market competitiveness under severe conditions, so that the improvement of energy conservation and consumption reduction is necessary for enterprise survival development and production cost reduction.
In the production process of building ceramics, the firing of wall and floor tiles is realized by adopting a gas-fired roller kiln. The gas-fired roller kiln is one of main devices with large electric energy and gas consumption of ceramic production enterprises, and how to ensure the gas-fired roller kiln can ensure the firing quality of ceramic products, improve the production efficiency, increase the yield, save the gas energy consumption, reduce SO2And nitrogen oxides and other polluted gases are discharged, the environmental temperature of a production workshop can be reduced, the working environment of workers is improved, and the method becomes an important subject of research and development innovation of ceramic enterprises. In recent years, the industry enterprises have been continuously improving the heating of combustion-supporting air of gas-fired roller kilns, the utility model discloses the applicant has applied for in 2018, an authorized title in 2019: the utility model provides an energy-concerving and environment-protective type pottery gas burns roller kilns, the utility model patent that patent number is 201821891348.4, still there is the hot-blast comparison abundance of cold wind heat transfer device output that sets up in the pottery gas burns roller kilns in the implementation process, need adopt to reduce the fan amount of wind or solve the processing with the method of partial hot-blast dispersion, but this kind of solution processing method exists cold wind heat transfer device can not normally full load play effect or cause the extravagant problem of part energy.
Disclosure of Invention
In order to solve the hot-blast than rich of cold wind heat transfer device output that above-mentioned gas burns roller kilns existence, need adopt the method that reduces the fan amount of wind or will partly hot-blast dispersion to solve the processing, have cold wind heat transfer device can not normally full load play effect or cause the extravagant problem of partial energy, the utility model provides an energy-concerving and environment-protective type double-deck pottery gas burns roller kilns.
In order to realize the above object, the utility model adopts the following technical scheme:
an energy-saving environment-friendly double-layer ceramic gas-fired roller kiln comprises a kiln body consisting of an upper-layer kiln body, a lower-layer kiln body and an interlayer, wherein the upper-layer kiln body and the lower-layer kiln body are respectively arranged at the upper part and the lower part of the kiln body, and the interlayer is fixedly arranged between the upper-layer kiln body and the lower-layer kiln body; the device also comprises a variable frequency motor, a coupling, a fan, a ground support, a cold air heat exchange device, a hot air conveying pipe and a fuel gas conveying pipe;
the upper-layer kiln body comprises an upper-layer kiln body burner, an upper-layer kiln body combustion-supporting air branch pipe and an upper-layer kiln body conveying roller way;
the variable frequency motor and the fan are connected through the coupling and arranged on the ground support at the top of the kiln tail of the kiln body in an overhead manner;
the hot air delivery pipe and the fuel gas delivery pipe are fixedly arranged on one side of the bottom of the kiln body;
the cold air heat exchange device comprises a cold air section air pipe, an air dividing box, a hot air section air pipe, an air pipe elastic connecting section, an air collecting box and a hot air output pipe;
the hot-blast section tuber pipe cross section is square, wherein: the width is 50cm, and the height is 40 cm; the number of the hot air section air pipes is 3, the length of each hot air section air pipe is 24 meters, the hot air section air pipes are respectively arranged from the kiln tail end of the kiln body towards the kiln head, the kiln tail end is an air inlet, the hot air section air pipes are arranged towards the kiln head, the width range of the 3 hot air section air pipes in the upper layer kiln body is uniformly distributed, the top surfaces of the 3 hot air section air pipes are respectively connected with the top of the kiln body, and the distance between the bottom surfaces of the 3 hot air section air pipes and the upper plane of the wall and floor tiles conveyed on the conveying roller way of the upper layer kiln body is 15 cm;
the air distribution box is in a hollow cylinder shape and is arranged at the top of the kiln tail side of the kiln body, a round air inlet is arranged in the center of the upper side surface of the air distribution box, and 3 square air outlets are uniformly distributed on the lower side surface of the air distribution box; the air inlets of the 3 hot air section air pipes are fixedly and hermetically connected with 3 air outlets corresponding to the air distribution box respectively, the air inlets of the air distribution box are fixedly and hermetically connected with one end of the cold air section air pipe, and the other end of the cold air section air pipe is fixedly and hermetically connected with the air outlet of the fan;
the air collecting box is in a hollow cylinder shape and is arranged at the upper part of the kiln body, the distance between the right outer side of the air collecting box and the left outer side of the air distributing box is 24-25 meters horizontally along the center of the kiln body, 3 square air inlets are uniformly distributed on the lower side surface of the air collecting box, and a circular air outlet is arranged in the center of the upper side surface of the air collecting box; the air outlets of the 3 hot air section air pipes are fixedly and hermetically connected with 3 air inlets corresponding to the air collecting box respectively, the air outlets of the air collecting box are fixedly and hermetically connected with one end of the hot air output pipe, and the other end of the hot air output pipe is connected with the hot air conveying pipe; one end of the combustion-supporting air branch pipe of the upper-layer kiln body is fixedly and hermetically connected with the hot air conveying pipe, and the other end of the combustion-supporting air branch pipe of the upper-layer kiln body is hermetically connected with the burner of the upper-layer kiln body;
the length of the 3 hot air section air pipes from the kiln head direction section of the kiln body is 15 meters, and the length of the 3 hot air section air pipes from the kiln tail section of the kiln body is 9 meters;
each hot air segment air pipe is divided into 4 segments, a 5cm expansion joint is reserved between each two segments, and each air pipe elastic connecting segment is arranged on each air pipe elastic connecting segment and is used for sealing and elastically connecting the adjacent two segments of hot air segment air pipes;
perlite heat-insulating layers are respectively arranged on the outer surfaces of the air collecting box and the hot air output pipe, the top of the kiln body and the outer surface of the combustion-supporting air branch pipe of the upper kiln body;
as an improvement of the utility model, the lower layer kiln body comprises a lower layer kiln body side wall, a lower layer kiln body conveying roller way, a lower layer kiln body combustion-supporting air branch pipe, a lower layer kiln body fuel gas conveying branch pipe, a lower layer kiln body burner, a lower layer kiln body moisture discharge port, a lower layer kiln body moisture gas collection box and a lower layer kiln body moisture discharge pipe;
the lower-layer kiln body burner is arranged on the side wall of the lower-layer kiln body and positioned below the lower-layer kiln body conveying roller way, and the lower-layer kiln body burner is connected with the lower-layer kiln body combustion-supporting air branch pipe and the lower-layer kiln body fuel gas conveying branch pipe;
the kiln body moisture discharge port of lower floor is evenly provided with N department on one side upper portion of lower floor's kiln body lateral wall along the kiln body direction, the lower floor's kiln body lateral wall outside is provided with lower floor's kiln body moisture gas collection case, lower floor's kiln body moisture gas collection case one side is provided with lower floor's kiln body moisture discharge pipe, lower floor's kiln body moisture discharge port with kiln body moisture gas collection case one side intercommunication, kiln body moisture gas collection case opposite side be provided with the gas outlet with lower floor's kiln body moisture discharge pipe intercommunication.
The upper layer kiln body of the double-layer ceramic gas-fired roller kiln is designed to be fired by the glaze surface of the ceramic tile, and the lower layer kiln body is designed to be fired by the biscuit of the ceramic tile; the double-layer design of the ceramic gas-fired roller kiln firstly enables the hot air output by the cold air heat exchange device to be well utilized to the maximum extent. And secondly, aiming at the biscuit firing of the ceramic brick as the lower kiln body, a large amount of moisture can be generated in the firing process, so that moisture discharge devices such as a lower kiln body moisture discharge port, a lower kiln body moisture gas collection box, a lower kiln body moisture discharge pipe and the like are arranged on one side of the lower kiln body, hot air combustion supporting output by the cold air heat exchange device can play a role to the maximum extent, and the drying of the biscuit ceramic brick fired by the lower kiln body is accelerated.
In a further step, the interlayer comprises a surface layer, a bottom layer and an intermediate layer; the surface course and the bottom layer are both provided with 310S high-temperature resistant stainless steel plates which are respectively fixedly connected with the upper kiln body and the lower kiln body, the middle layer is provided with high-temperature resistant asbestos, and the interlayer is used for preventing the wet gas in the lower kiln body from entering the upper kiln body.
The interlayer prevents moisture in the kiln body at the lower layer from entering the kiln body at the upper layer, so that the moisture in the kiln body at the lower layer is prevented from influencing the glaze firing system of the ceramic tile at the kiln body at the upper layer.
The utility model discloses following beneficial effect has:
1. the utility model has reasonable structure and simple manufacture, can ensure the firing quality of ceramic products of the ceramic gas-fired roller kiln, and improves the product quality to some extent; can further save the energy consumption of fuel gas and reduce SO2Emission of pollution gases such as nitrogen oxides and the like;
2. the utility model can further effectively utilize the residual heat of the single-layer roller kiln, save the production cost, further reduce the environmental temperature of the production workshop and improve the working environment of the staff;
3. the utility model can further improve the production efficiency and increase the yield;
4. the double-layer gas-fired roller kiln can save the occupied area;
to sum up, the utility model discloses can further energy saving, further reduce interior high fever temperature in the workshop, further practice thrift gas energy consumption reduction in production cost, reduce SO2And nitrogen oxides and other pollution gases are discharged, so that the production efficiency is improved, the land area can be saved, and better economic and social benefits are realized.
Drawings
FIG. 1 is a schematic front elevation view of the present invention;
fig. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic sectional view A-A of FIG. 1.
In the figure: 1-a kiln body, 2-an upper kiln body, 3-a lower kiln body, 4-an interlayer, 5-an upper kiln body burner, 6-an upper kiln body combustion-supporting air branch pipe, 7-an upper kiln body conveying roller way, 8-a variable frequency motor, 9-a coupling, 10-a fan, 11-a ground support, 12-a cold air heat exchange device, 13-a hot air conveying pipe and 14-a fuel gas conveying pipe;
wherein: 3-1 lower kiln body side wall, 3-2 lower kiln body conveying roller ways, 3-3 lower kiln body combustion-supporting hot air branch pipes, 3-4 lower kiln body fuel gas conveying branch pipes, 3-5 lower kiln body burners, 3-6 lower kiln body moisture discharge ports, 3-7 lower kiln body moisture gas collection tanks and 3-8 lower kiln body moisture discharge pipes;
4-1 surface layer, 4-2 bottom layer and 4-3 middle layer;
12-1 cold air section air pipe, 12-2 air dividing box, 12-3 hot air section air pipe, 12-4 air pipe elastic connecting section, 12-5 air collecting box and 12-6 hot air output pipe.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1-3, the energy-saving and environment-friendly double-layer ceramic gas-fired roller kiln in the embodiment comprises a kiln body (1) composed of an upper-layer kiln body (2), a lower-layer kiln body (3) and an interlayer (4), wherein the upper-layer kiln body (2) and the lower-layer kiln body (3) are respectively arranged at the upper part and the lower part of the kiln body (1), and the interlayer (4) is fixedly arranged between the upper-layer kiln body (2) and the lower-layer kiln body (3); the device also comprises a variable frequency motor (8), a coupling (9), a fan (10), a ground support (11), a cold air heat exchange device (12), a hot air delivery pipe (13) and a fuel gas delivery pipe (14);
the upper-layer kiln body (2) comprises upper-layer kiln body burners (5), upper-layer kiln body combustion-supporting air branch pipes (6) and upper-layer kiln body conveying roller ways (7);
the variable frequency motor (8) is connected with the fan (10) through the coupling (9) and is arranged on the ground support (11) at the top of the kiln tail of the kiln body (1) in an overhead manner;
the hot air delivery pipe (13) and the fuel gas delivery pipe (14) are fixedly arranged on one side of the bottom of the kiln body (1);
the cold air heat exchange device (12) comprises a cold air section air pipe (12-1), an air distribution box (12-2), a hot air section air pipe (12-3), an air pipe elastic connection section (12-4), an air collection box (12-5) and a hot air output pipe (12-6);
the cross section of the hot air section air pipe (12-3) is square, wherein: the width is 50cm, and the height is 40 cm; the number of the hot air section air pipes (12-3) is 3, each hot air section air pipe is 24 meters in length and is respectively arranged from the kiln tail end of the kiln body (1) towards the kiln head, the kiln tail end is an air inlet, the kiln head direction is an air outlet, the 3 hot air section air pipes (12-3) are uniformly distributed in the upper layer kiln body (2) in the width range, the top surfaces of the 3 hot air section air pipes (12-3) are respectively connected with the top of the kiln body (1), and the distance between the bottom surfaces of the 3 hot air section air pipes (12-3) and the upper plane of a wall conveyed on a conveying roller way (7) of the upper layer kiln body (2) is 15 cm;
the air distribution box (12-2) is in a hollow cylinder shape and is arranged at the top of the kiln tail side of the kiln body (1), a round air inlet is arranged in the center of the upper side face of the air distribution box (12-2), and 3 square air outlets are uniformly distributed on the lower side face; the air inlets of the 3 hot air section air pipes (12-3) are fixedly and hermetically connected with 3 air outlets corresponding to the air distribution box (12-2), the air inlets of the air distribution box (12-2) are fixedly and hermetically connected with one end of the cold air section air pipe (12-1), and the other end of the cold air section air pipe (12-1) is fixedly and hermetically connected with the air outlet of the fan (10);
the air collecting box (12-5) is in a hollow cylinder shape and is arranged at the upper part of the kiln body (1), the distance between the right outer side of the air collecting box (12-5) and the left outer side of the air distributing box (12-2) is 24-25 meters horizontally along the center of the kiln body (1), 3 square air inlets are uniformly distributed on the lower side surface of the air collecting box (12-5), and a circular air outlet is arranged in the center of the upper side surface of the air collecting box; the air outlets of the 3 hot air section air pipes (12-3) are fixedly and hermetically connected with 3 corresponding air inlets of the air collecting box (12-5), the air outlets of the air collecting box (12-5) are fixedly and hermetically connected with one end of the hot air output pipe (12-6), and the other end of the hot air output pipe (12-6) is connected with the hot air conveying pipe (13); one end of the upper-layer kiln body combustion-supporting air branch pipe (6) is fixedly and hermetically connected with the hot air conveying pipe (13), and the other end of the upper-layer kiln body combustion-supporting air branch pipe is hermetically connected with the upper-layer kiln body burner (5);
the 3 hot air section air pipes (12-3) are 15 meters away from the kiln head direction section of the kiln body (1) and 9 meters away from the tail section of the kiln body (1);
each hot air section air pipe (12-3) is divided into 4 sections, a 5cm expansion joint is reserved between each two sections, the air pipe elastic connecting section (12-4) is arranged, and the air pipe elastic connecting section (12-4) is used for hermetically and elastically connecting the adjacent two sections of hot air section air pipes (12-3);
perlite heat-insulating layers are respectively arranged on the outer surfaces of the air collecting box (12-5) and the hot air output pipe (12-6) and the outer surfaces of the top of the kiln body (1) and the combustion-supporting air branch pipe (6) of the upper layer of the kiln body;
in another step, the lower-layer kiln body (3) comprises a lower-layer kiln body side wall (3-1), a lower-layer kiln body conveying roller way (3-2), a lower-layer kiln body combustion-supporting air branch pipe (3-3), a lower-layer kiln body fuel gas conveying branch pipe (3-4), a lower-layer kiln body burner (3-5), a lower-layer kiln body moisture discharge port (3-6), a lower-layer kiln body moisture gas collection box (3-7) and a lower-layer kiln body moisture discharge pipe (3-8);
the lower kiln body burner (3-5) is arranged on the side wall (3-1) of the lower kiln body and is positioned below the lower kiln body conveying roller way (3-2), the lower kiln body burner (3-5) is connected with the lower kiln body combustion-supporting air branch pipe (3-3) and the lower kiln body fuel gas conveying branch pipe (3-4),
the kiln body is characterized in that N kiln body moisture discharge ports (3-6) of the lower layer are evenly arranged on the upper portion of one side of the side wall (3-1) of the lower layer kiln body along the direction of the kiln body, the kiln body moisture gas collection boxes (3-7) of the lower layer are arranged on the outer side of the side wall (3-1) of the lower layer kiln body, the kiln body moisture discharge pipes (3-8) of the lower layer are arranged on one side of the kiln body moisture gas collection boxes (3-7) of the lower layer, the kiln body moisture discharge ports (3-6) of the lower layer are communicated with one side of the kiln body moisture gas collection boxes (3-7), and gas outlets communicated with the kiln body moisture discharge pipes (3-8) of the lower layer are arranged on the.
The upper layer kiln body (2) of the double-layer ceramic gas-fired roller kiln is designed to be fired by the glaze surface of the ceramic tile, and the lower layer kiln body (3) is designed to be fired by the biscuit of the ceramic tile; the double-layer design of the ceramic gas-fired roller kiln firstly enables the hot air output by the cold air heat exchange device (12-3) to be well utilized to the maximum extent. Secondly, aiming at the biscuit firing of the ceramic brick as the lower kiln body (3), a large amount of moisture can be generated in the firing process, so that moisture discharging devices such as the lower kiln body moisture discharging port (3-6), the lower kiln body moisture gas collecting box (3-7), the lower kiln body moisture discharging pipe (3-8) and the like are arranged on one side of the lower kiln body (3), the hot air combustion-supporting output by the cold air heat exchange device (12-3) can play a role to the maximum extent, and the drying of the biscuit firing ceramic brick of the lower kiln body (3) is accelerated.
In another step, the interlayer (4) comprises a surface layer (4-1), a bottom layer (4-2) and an intermediate layer (4-3); the kiln comprises a surface layer (4-1), a bottom layer (4-2) and an interlayer (4) and is characterized in that the surface layer (4-1) and the bottom layer (4-2) are both provided with 310S high-temperature resistant stainless steel plates which are respectively fixedly connected with an upper-layer kiln body (2) and a lower-layer kiln body (3), the interlayer (4-3) is provided with high-temperature resistant asbestos, and the interlayer (4) is used for preventing moisture in the lower-layer kiln body (3) from entering the upper-layer kiln body (2.
The interlayer (4) prevents moisture in the lower kiln body (3) from entering the upper kiln body (2) so as to prevent the moisture in the lower kiln body (3) from influencing the glaze firing system of the ceramic tile of the upper kiln body (2).
Claims (2)
1. An energy-saving environment-friendly double-layer ceramic gas-fired roller kiln comprises a kiln body (1) consisting of an upper-layer kiln body (2), a lower-layer kiln body (3) and an interlayer (4), wherein the upper-layer kiln body (2) and the lower-layer kiln body (3) are respectively arranged at the upper part and the lower part of the kiln body (1), and the interlayer (4) is fixedly arranged between the upper-layer kiln body (2) and the lower-layer kiln body (3); the device also comprises a variable frequency motor (8), a coupling (9), a fan (10), a ground support (11), a cold air heat exchange device (12), a hot air delivery pipe (13) and a fuel gas delivery pipe (14);
the upper-layer kiln body (2) comprises upper-layer kiln body burners (5), upper-layer kiln body combustion-supporting air branch pipes (6) and upper-layer kiln body conveying roller ways (7);
the variable frequency motor (8) is connected with the fan (10) through the coupling (9) and is arranged on the ground support (11) at the top of the kiln tail of the kiln body (1) in an overhead manner;
the hot air delivery pipe (13) and the fuel gas delivery pipe (14) are fixedly arranged on one side of the bottom of the kiln body (1);
the kiln body combustion-supporting device is characterized in that the lower-layer kiln body (3) comprises a lower-layer kiln body side wall (3-1), a lower-layer kiln body conveying roller way (3-2), a lower-layer kiln body combustion-supporting air branch pipe (3-3), a lower-layer kiln body fuel gas conveying branch pipe (3-4), a lower-layer kiln body burner (3-5), a lower-layer kiln body moisture discharge port (3-6), a lower-layer kiln body moisture gas collection box (3-7) and a lower-layer kiln body moisture discharge pipe (3-8);
the lower-layer kiln body burner (3-5) is arranged on the side wall (3-1) of the lower-layer kiln body and is positioned below the lower-layer kiln body conveying roller way (3-2), and the lower-layer kiln body burner (3-5) is connected with the lower-layer kiln body combustion-supporting air branch pipe (3-3) and the lower-layer kiln body fuel gas conveying branch pipe (3-4);
the kiln body is characterized in that N kiln body moisture discharge ports (3-6) of the lower layer are evenly arranged on the upper portion of one side of the side wall (3-1) of the lower layer kiln body along the direction of the kiln body, the kiln body moisture gas collection boxes (3-7) of the lower layer are arranged on the outer side of the side wall (3-1) of the lower layer kiln body, the kiln body moisture discharge pipes (3-8) of the lower layer are arranged on one side of the kiln body moisture gas collection boxes (3-7) of the lower layer, the kiln body moisture discharge ports (3-6) of the lower layer are communicated with one side of the kiln body moisture gas collection boxes (3-7), and gas outlets communicated with the kiln body moisture discharge pipes (3-8) of the lower layer are arranged on the.
2. The energy-saving and environment-friendly double-layer ceramic gas-fired roller kiln as claimed in claim 1, wherein the interlayer (4) comprises a surface layer (4-1), a bottom layer (4-2) and an intermediate layer (4-3); the kiln comprises a surface layer (4-1), a bottom layer (4-2) and an interlayer (4) and is characterized in that the surface layer (4-1) and the bottom layer (4-2) are both provided with 310S high-temperature resistant stainless steel plates which are respectively fixedly connected with an upper-layer kiln body (2) and a lower-layer kiln body (3), the interlayer (4-3) is provided with high-temperature resistant asbestos, and the interlayer (4) is used for preventing moisture in the lower-layer kiln body (3) from entering the upper-layer kiln body (2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021224127.9U CN212538748U (en) | 2020-06-29 | 2020-06-29 | Energy-saving environment-friendly double-layer ceramic gas-fired roller kiln |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021224127.9U CN212538748U (en) | 2020-06-29 | 2020-06-29 | Energy-saving environment-friendly double-layer ceramic gas-fired roller kiln |
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| CN212538748U true CN212538748U (en) | 2021-02-12 |
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| CN202021224127.9U Active CN212538748U (en) | 2020-06-29 | 2020-06-29 | Energy-saving environment-friendly double-layer ceramic gas-fired roller kiln |
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