Environment-friendly kiln capable of effectively controlling oxygen content in kiln

Abstract

The environment-friendly kiln capable of effectively controlling the oxygen content in the kiln comprises a roasting kiln and a drying kiln connected with one side of the roasting kiln, ferry vehicle channels are arranged at the two ends of the roasting kiln and the two ends of the drying kiln, and stop doors are arranged at the ends, away from each other, in the roasting kiln and the drying kiln. Branch flues are arranged at the bottoms in the roasting cellar and the drying cellar, a plurality of trolleys for sealing openings in the tops of the branch flues are arranged in the two branch flues, main flues are arranged on the two sides of the roasting cellar and the two sides of the drying cellar, each main flue is composed of an upper flue, a middle flue and a lower flue, and connecting flues communicated with the branch flues are arranged on the lower flues. According to the environment-friendly kiln capable of effectively controlling the oxygen content in the kiln, air is pumped out and led in through the exhaust pipe and the air pipe respectively, so that the oxygen content in the roasting kiln and the oxygen content in the drying kiln are reduced and improved, the oxygen content in the kiln is effectively controlled, fuel is fully combusted, the energy utilization efficiency is improved, the temperature rising speed is conveniently controlled, and the environment-friendly kiln is suitable for industrial production. The product quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of kilns, in particular to an environmentally friendly kiln which can effectively control the oxygen content in the kiln. Background Art

[0002] Kilns are equipment made of refractory materials for firing products. They are essential facilities in pottery molding. In the history of technological development, a wealth of kiln-making styles and experiences have been accumulated, from the open-air pile firing and pit-building firing in primitive society to the steamed bun-shaped rising flame round kiln, semi-downdraft horseshoe kiln, half-slope dragon kiln, duck egg-shaped kiln, and nowadays indoor gas kiln and electric kiln. Electric kilns are easier to control temperature than kilns using combustible gas and oil, but some potters and sculptors believe that the temperature of electric kilns rises too quickly, which is not conducive to the heating of products, and easily leads to uneven heating of products, resulting in obvious differences in the texture of the inside and outside of the products, thus resulting in unqualified product quality. Traditional kilns and today's indoor gas kilns are heated by fuels such as coal or gas. However, the oxygen content in the kiln cannot be controlled, resulting in combustion efficiency that cannot be controlled. When the oxygen content in the kiln is too low, combustion is incomplete, resulting in heavy smoke, serious pollution, low energy utilization, and temperature failure to reach the required temperature. When the oxygen content in the kiln is too high, there is an excess of oxygen. As the fuel burns faster, the temperature rises faster, which can easily lead to uneven heating of the product, resulting in obvious differences in texture between the inside and outside of the product, resulting in unqualified product quality. Utility Model Content

[0003] The purpose of the utility model is to provide an environmentally friendly kiln which can effectively control the oxygen content in the kiln, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly kiln that effectively controls the oxygen content in the kiln, comprising a roasting kiln and a drying kiln connected to one side of the roasting kiln, both ends of the roasting kiln and the drying kiln are provided with shuttle bus passages, the ends of the roasting kiln and the drying kiln that are away from each other are provided with stop doors, branch flues are opened at the bottom of the roasting kiln and the drying kiln, and a number of trolleys for closing the top openings of the branch flues are provided in the two branch flues, main flues are provided on both sides of the roasting kiln and the drying kiln, the main flue is composed of an upper flue, a middle flue and a lower flue, the lower flue is provided with a connecting flue connected to the branch flue, the inside of the roasting kiln and the drying kiln is provided with oxygen ducts connected to the outside world, exhaust pipes are laid on both sides of the inner walls of the roasting kiln and the drying kiln, exhaust fans are installed on the roasting kiln and the drying kiln, and the air inlet of the exhaust fan It is connected to the exhaust pipe, and the air outlet of the exhaust fan is connected to the middle flue. A wind pool is provided on the top of the roasting kiln. Both sides of the wind pool are connected to oxygen air ducts connected to the upper flue. A fan is installed in the middle of the wind pool. The air outlet of the fan is fixedly connected to the air duct extending into the roasting kiln. The roasting kiln and the drying kiln are installed with Venturi burners located on both sides of the branch flue. The stop door is used to cut off the internal space of the roasting kiln and the drying kiln, leaving a working space. The roasting kiln and the drying kiln are heated by the Venturi burners, so as to carry out drying and roasting work. The materials are placed on the trolley, and then the trolley with the materials is transported by the shuttle bus, and enters the roasting kiln and the drying kiln through the shuttle bus channel to complete the feeding. The stop door and the kiln door are closed before work. After the roasting and drying work is completed, the stop door and the kiln door are opened, and the shuttle bus transports the trolley for processing and transports it to the next processing step.

[0005] Preferably, both ends of the roasting kiln and both ends of the drying kiln are provided with kiln doors connected to the shuttle bus passage, and the roasting kiln and the drying kiln are sealed by closing the kiln doors.

[0006] Preferably, the inside of the roasting kiln and the drying kiln are both paved with insulation boards, and the insulation boards are made of graphite insulation boards.

[0007] Preferably, the air duct is provided with a plurality of evenly distributed air holes.

[0008] Preferably, a plurality of evenly distributed smoke holes are provided on the top of the plurality of trolleys, the top ends of the plurality of smoke holes are connected to the roasting kiln or the drying kiln, and the bottom ends of the plurality of smoke holes are connected to the branch flue.

[0009] Preferably, several of the trolleys are evenly arranged in the branch flue, the air ducts are laid on the top of the inner walls of the roasting kiln and the drying kiln, and the materials are placed on the trolleys for easy transportation. The air ducts are laid on the inner walls of the roasting kiln and the drying kiln.

[0010] Compared with the prior art, the utility model has the following beneficial effects: air is extracted and introduced respectively through the exhaust pipe and the wind duct, thereby reducing and increasing the oxygen content in the roasting kiln and the drying kiln, thereby effectively controlling the oxygen content in the kiln, making the fuel burn fully, improving energy utilization efficiency, facilitating control of the temperature rise rate, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the roasting kiln of the utility model;

[0013] Figure 3 It is a plan view of the fan and the air duct of the utility model.

[0014] In the figure: 1. roasting cellar; 2. drying cellar; 3. main flue; 4. stop door; 5. cellar door; 6. shuttle bus passage; 7. wind pool; 8. fan; 9. exhaust pipe; 10. air duct; 11. air hole; 12. exhaust fan; 13. oxygen air duct; 14. trolley; 15. smoke hole; 16. branch flue; 17. ventilator; 18. connecting flue; 19. insulation board; 20. lower flue; 21. middle flue; 22. upper flue. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] See also Figure 1-3The utility model provides an environmentally friendly kiln that effectively controls the oxygen content in the kiln, including a roasting kiln 1 and a drying kiln 2 connected to one side of the roasting kiln 1, both ends of the roasting kiln 1 and the drying kiln 2 are provided with a shuttle car channel 6, the roasting kiln 1 and the drying kiln 2 are provided with a stop door 4 at the ends away from each other, the bottoms of the roasting kiln 1 and the drying kiln 2 are provided with branch flues 16, and the two branch flues 16 are provided with a plurality of trolleys 14 for closing the top openings of the branch flues 16, both sides of the roasting kiln 1 and the drying kiln 2 are provided with main flues 3, the main flue 3 is composed of an upper flue 22, a middle flue 21 and a lower flue 20, and the lower flue 20 is provided with a connecting flue connected to the branch flue 16 18. The roasting kiln 1 and the drying kiln 2 are both provided with oxygen ducts 13 connected to the outside, exhaust pipes 9 are laid on both sides of the inner walls of the roasting kiln 1 and the drying kiln 2, and exhaust fans 12 are installed on the roasting kiln 1 and the drying kiln 2. The air inlet of the exhaust fan 12 is connected to the exhaust pipe 9, and the air outlet of the exhaust fan 12 is connected to the middle flue 21. A wind pool 7 is opened on the top of the roasting kiln 1, and both sides of the wind pool 7 are connected to the oxygen ducts 13 connected to the upper flue 22. A fan 8 is installed in the middle of the wind pool 7, and the air outlet of the fan 8 is fixedly connected to the air duct 10 extending into the roasting kiln 1. Venturi burners 17 located on both sides of the branch flue 16 are installed in the roasting kiln 1 and the drying kiln 2;

[0017] When in use, the kiln consists of a roasting kiln 1 and a drying kiln 2. The shuttle bus transports materials and products through the shuttle bus channel 6. The materials are first sent to the trolley 14 of the drying kiln 2, where they are dried, and then sent to the trolley 14 of the roasting kiln 1 to be roasted in the roasting kiln 1. The smoke generated by the combustion of dyes in the roasting kiln 1 and the drying kiln 2 enters the lower flue 20 through the branch flue 16 and is then discharged. The exhaust fan 12 draws out the air in the roasting kiln 1 and the drying kiln 2 through the exhaust pipe 9 and discharges it through the middle flue 21, thereby reducing the oxygen content in the roasting kiln 1 and the drying kiln 2. The fan 8 draws air from the outside through the upper flue 22, the oxygen duct 13 and the wind pool 7. The fan 8 introduces air into the roasting kiln 1 and the drying kiln 2 through the air duct 10, thereby increasing the oxygen content in the roasting kiln 1 and the drying kiln 2, thereby effectively controlling the oxygen content in the kiln.

[0018] Both ends of the roasting cellar 1 and the drying cellar 2 are provided with cellar doors 5 connected to the shuttle vehicle passage 6, and the roasting cellar 1 or the drying cellar 2 can be entered or exited by opening the cellar doors 5.

[0019] The inside of the roasting kiln 1 and the drying kiln 2 are both paved with insulation boards 19, which are made of graphite insulation boards. The insulation boards 19 improve the insulation performance of the roasting kiln 1 and the drying kiln 2, reduce the loss of heat energy, and reduce energy loss.

[0020] The air duct 10 is provided with a plurality of evenly distributed air holes 11 , through which air is injected into the roasting kiln 1 to increase the oxygen content, thereby improving the combustion efficiency.

[0021] A plurality of evenly distributed smoke holes 15 are provided on the top of the plurality of trolleys 14 , the top ends of the plurality of smoke holes 15 are connected to the roasting kiln 1 or the drying kiln 2 , and the bottom ends of the plurality of smoke holes 15 are connected to the branch flue 16 , and the smoke in the roasting kiln 1 or the drying kiln 2 enters the branch flue 16 through the smoke holes 15 .

[0022] A plurality of trolleys 14 are evenly arranged in the branch flue 16 , and the air duct 10 is laid on the top of the inner wall of the roasting kiln 1 and the drying kiln 2 .

[0023] When the embodiment of the present application is in use: the kiln consists of a roasting kiln 1 and a drying kiln 2, the shuttle bus transports materials and products through the shuttle bus channel 6, first the materials are sent to the trolley 14 of the drying kiln 2, the materials are dried in the drying kiln 2, and then sent to the trolley 14 of the roasting kiln 1, and roasted in the roasting kiln 1, the smoke generated by the combustion of dyes in the roasting kiln 1 and the drying kiln 2 enters the lower flue 20 through the branch flue 16, and is then discharged, the exhaust fan 12 draws out the air in the roasting kiln 1 and the drying kiln 2 through the exhaust pipe 9, and discharges it through the middle flue 21, thereby reducing the oxygen content in the roasting kiln 1 and the drying kiln 2, the fan 8 draws outside air through the upper flue 22, the oxygen duct 13 and the wind pool 7, the fan 8 introduces air into the roasting kiln 1 and the drying kiln 2 through the air duct 10, thereby increasing the oxygen content in the roasting kiln 1 and the drying kiln 2, thereby effectively controlling the oxygen content in the kiln.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly kiln that effectively controls the oxygen content in the kiln, comprising a roasting kiln (1) and a drying kiln (2) connected to one side of the roasting kiln (1), characterized in that: Both ends of the roasting kiln (1) and the drying kiln (2) are provided with shuttle car passages (6), and the ends of the roasting kiln (1) and the drying kiln (2) away from each other are provided with stop doors (4). The bottoms of the roasting kiln (1) and the drying kiln (2) are provided with branch flues (16), and the two branch flues (16) are provided with a plurality of trolleys (14) for closing the top openings of the branch flues (16). Both sides of the roasting kiln (1) and the drying kiln (2) are provided with main flues (3), and the main flues (3) are composed of an upper flue (22), a middle flue (21) and a lower flue (20). The lower flue (20) is provided with a connecting flue (18) connected to the branch flue (16). The roasting kiln (1) and the drying kiln (2) are provided with oxygen ducts connected to the outside. The roasting kiln (1) and the drying kiln (2) are provided with air ducts (9) on both sides of the inner wall. The roasting kiln (1) and the drying kiln (2) are provided with air extractors (12). The air inlet of the air extractors (12) is connected to the air extractors (9). The air outlet of the air extractors (12) is connected to the middle flue (21). The top of the roasting kiln (1) is provided with an air pool (7). Both sides of the air pool (7) are connected to oxygen air ducts (13) connected to the upper flue (22). A fan (8) is installed in the middle of the wind pool (7). The air outlet of the fan (8) is fixedly connected to an air duct (10) extending into the roasting kiln (1). Venturi burners (17) located on both sides of the branch flue (16) are installed in the roasting kiln (1) and the drying kiln (2).

2. An environmentally friendly kiln for effectively controlling the oxygen content in the kiln according to claim 1, characterized in that: Both ends of the roasting kiln (1) and both ends of the drying kiln (2) are provided with kiln doors (5) connected to the ferry vehicle passage (6).

3. The environmentally friendly kiln for effectively controlling the oxygen content in the kiln according to claim 1, characterized in that: The inside of the roasting kiln (1) and the drying kiln (2) are both paved with insulation boards (19), and the insulation boards (19) are made of graphite insulation boards.

4. The environmentally friendly kiln for effectively controlling the oxygen content in the kiln according to claim 1, characterized in that: The air duct (10) is provided with a plurality of evenly distributed air holes (11).

5. The environmentally friendly kiln for effectively controlling the oxygen content in the kiln according to claim 1, characterized in that: A plurality of evenly distributed smoke holes (15) are provided on the top of the plurality of trolleys (14); the top ends of the plurality of smoke holes (15) are connected to the roasting kiln (1) or the drying kiln (2); and the bottom ends of the plurality of smoke holes (15) are connected to the branch flue (16).

6. The environmentally friendly kiln for effectively controlling the oxygen content in the kiln according to claim 1, characterized in that: A plurality of the trolleys (14) are evenly arranged in the branch flue (16), and the air duct (10) is laid on the top of the inner wall of the roasting kiln (1) and the drying kiln (2).

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