A heating device for a ceramic air-drying plant

Abstract

This utility model relates to a heating device for a ceramic air-drying workshop, comprising a furnace body, a burner, and a centrifugal fan. The furnace body includes a combustion chamber, a flue gas chamber, and a heat exchange chamber. The burner is connected to the combustion chamber, with its flame output end extending into the interior of the combustion chamber. The heat exchange chamber contains a heat exchange tube connecting the combustion chamber and the flue gas chamber. The furnace body has a flue gas pipe communicating with the flue gas chamber, and also has an air inlet and an air outlet communicating with the heat exchange chamber. The centrifugal fan is located at the air outlet, and an air outlet pipe is connected to the air outlet of the centrifugal fan. The air inlet has an air inlet baffle that covers its opening and allows for adjustment of its opening size. The flue gas outlet of the flue gas pipe has an exhaust baffle that covers its opening and allows for adjustment of its opening size. A dustproof mesh is also provided at the air inlet. This design establishes an efficient heat exchange path, allowing the high-temperature flue gas generated by the burner to flow fully within the heat exchange tube and exchange heat comprehensively with the air in the heat exchange chamber.

Description

Technical Field

[0001] This utility model relates to the field of ceramic production equipment technology, specifically to a heating device for a ceramic drying workshop. Background Technology

[0002] In the ceramic manufacturing industry, the air-drying of ceramic blanks is a crucial step that determines product quality and production efficiency. Ceramic blanks need to be gradually dehydrated in a suitable temperature environment (55-70℃). If the ambient temperature is too low (such as during winter production or in workshops in high-latitude regions), the rate of moisture evaporation from the blanks will decrease significantly. This not only prolongs the air-drying cycle but also easily leads to defects such as cracking and deformation of the blanks due to uneven moisture distribution, resulting in a higher product defect rate and seriously affecting production efficiency. To address the challenges of air drying in low-temperature environments, existing ceramic air drying workshops mostly employ traditional heating equipment for auxiliary temperature rise. However, these methods generally suffer from several technical shortcomings: Firstly, the heat exchange structure design is unreasonable, with most equipment relying solely on simple heating pipes or combustion chambers for direct heat dissipation. This results in limited heat exchange area and a significant amount of heat being directly emitted with the flue gas, leading to energy waste. Secondly, there is a lack of flexible airflow adjustment mechanisms. The intake airflow and exhaust airflow cannot be dynamically adjusted according to the actual needs of the workshop (such as the air drying temperature requirements for different specifications of blanks, differences in workshop space size, and temperature requirements for different air drying stages). This can easily lead to localized excessively high or insufficient temperatures, affecting the uniformity of blank drying. Utility Model Content

[0003] To address the above technical issues, this utility model provides a heating device for a ceramic drying workshop, which constructs an efficient heat exchange path. The high-temperature flue gas generated by the burner can flow fully within the heat exchange tubes and exchange heat comprehensively with the air in the heat exchange chamber. Workers can dynamically adjust the hot air temperature and air volume by changing the opening size according to actual needs, ensuring that a suitable drying environment is always maintained in the workshop, improving the uniformity of the drying of the blanks, and reducing the defect rate.

[0004] A heating device for a ceramic air-drying workshop includes a furnace body, a burner, and a centrifugal fan. The furnace body is equipped with a combustion chamber, a flue gas chamber, and a heat exchange chamber. The burner is connected to the combustion chamber, and the flame output end of the burner extends into the interior of the combustion chamber. The heat exchange chamber is equipped with a heat exchange tube connecting the combustion chamber and the flue gas chamber. The furnace body is equipped with a flue gas pipe communicating with the flue gas chamber. The furnace body is also equipped with an air inlet and an air outlet communicating with the heat exchange chamber. The centrifugal fan is located at the air outlet, and an air outlet pipe is connected to the air outlet of the centrifugal fan. The air inlet is equipped with an air inlet baffle that covers its opening and allows for adjustment of its opening size. The flue gas outlet of the flue gas pipe is equipped with an exhaust baffle that covers its opening and allows for adjustment of its opening size. The air inlet is also equipped with a dustproof mesh.

[0005] Furthermore, a vertical groove is provided at the air inlet, into which the dustproof mesh plate is inserted and slidably engaged. A handle is provided at the top of the dustproof mesh plate. By setting up the vertical groove and the slidably engaged dustproof mesh plate, it is convenient for staff to regularly remove the dustproof mesh plate for cleaning or replacement. The handle further enhances the ease of loading and unloading the dustproof mesh plate, ensuring a continuous and stable dustproof effect.

[0006] Furthermore, the air inlet and exhaust pipe are each equipped with a socket. The air inlet plate and exhaust plate are inserted into their respective sockets and slide in cooperation with them. The outer edges of the air inlet plate and exhaust plate are equipped with bent pull handles. The sliding cooperation structure between the socket and the plate is simple and reliable. Operators can easily push the air inlet plate and exhaust plate by pulling the handles to flexibly adjust the air volume of the air inlet and the exhaust volume of the exhaust pipe to meet the different heating needs of the ceramic drying workshop. At the same time, this structure is easy to operate and has high adjustment precision.

[0007] Furthermore, the combustion chamber is located within the heat exchange chamber. The inlet end of the heat exchange tubes is connected to the side of the combustion chamber away from the burner, and the outlet end is connected to the exhaust chamber. The heat exchange tubes are distributed meanderingly within the heat exchange chamber. Placing the combustion chamber within the heat exchange chamber allows the heat emitted by the combustion chamber to directly act on the air inside the chamber. Simultaneously, the meandering distribution of the heat exchange tubes significantly increases the contact area between the tubes and the air inside the chamber, extending the heat exchange time and significantly improving heat exchange efficiency, ensuring a stable and sufficient temperature of the hot air entering the workshop.

[0008] Furthermore, the heat exchange chamber is equipped with several heat exchange fins, which are welded to the outer surface of the heat exchange tube. The arrangement of the heat exchange fins further increases the heat dissipation area of ​​the heat exchange tube, accelerates the heat exchange rate between the heat exchange tube and the air in the heat exchange chamber, and enables the air in the heat exchange chamber to absorb heat more quickly, thereby further improving the overall heat exchange efficiency of the device and reducing heat waste.

[0009] Furthermore, a protective net is installed at the inlet of the exhaust pipe. The protective net effectively prevents external debris from entering the exhaust pipe and causing blockages, while also preventing personnel from accidentally coming into contact with the inside of the exhaust pipe, thus improving the safety of equipment use.

[0010] Furthermore, the furnace body is equipped with an insulation layer inside the furnace wall. The insulation layer can effectively reduce the loss of heat from the inside of the furnace to the outside, reduce energy consumption, maintain the temperature stability of each chamber inside the furnace, ensure that the heat exchange process is carried out continuously and efficiently, and at the same time avoid the risk of burns to the staff caused by excessively high external furnace temperature.

[0011] Furthermore, the furnace body is equipped with an observation window to observe the combustion status in the combustion chamber. Through this window, staff can monitor the combustion process in the furnace chamber in real time, facilitating timely detection and adjustment of any combustion anomalies. This ensures the burner remains in a normal and efficient combustion state, guaranteeing the stability of the device's heating effect.

[0012] Furthermore, it also includes a control system connected to the burner and centrifugal fan, and a temperature sensor connected to the control system is installed at the air outlet duct.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This device constructs an efficient heat exchange path by rationally dividing the furnace body into a combustion chamber, a flue gas chamber, and a heat exchange chamber, and setting heat exchange tubes connecting the combustion chamber and the flue gas chamber in the heat exchange chamber. The high-temperature flue gas generated by the burner can flow fully in the heat exchange tubes and exchange heat with the air in the heat exchange chamber. Compared with traditional equipment, the heat exchange area is significantly increased. Adjustable air inlet baffles and smoke exhaust baffles are installed at the air inlet and smoke exhaust pipe respectively, which can control the air intake and smoke exhaust volume. According to actual needs, the staff can change the opening size of the air inlet and smoke exhaust pipe by sliding the air inlet baffles and smoke exhaust baffles to achieve dynamic adjustment of hot air temperature and air volume, ensuring that a suitable drying environment is always maintained in the workshop, improving the drying uniformity of the blanks and reducing the defect rate. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is another structural schematic diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the heat exchange chamber in this utility model.

[0018] The components include: 1. Furnace body; 2. Burner; 3. Centrifugal fan; 4. Combustion furnace chamber; 5. Smoke exhaust chamber; 6. Heat exchange chamber; 7. Heat exchange tube; 8. Air inlet; 9. Air outlet; 10. Air inlet baffle; 11. Smoke exhaust pipe; 12. Smoke exhaust baffle; 13. Dustproof mesh plate; 14. Vertical slide rail; 15. Handle; 16. Heat exchange fins; 18. Protective mesh; 19. Insulation layer; 20. Observation window; 21. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Please see Figure 1-3 A heating device for a ceramic air-drying workshop includes a furnace body 1, a burner 2, and a centrifugal fan 3. The furnace body 1 is equipped with a combustion chamber 4, a flue gas chamber 5, and a heat exchange chamber 6. The burner 2 is connected to the combustion chamber 4, and the flame output end of the burner 2 extends into the interior of the combustion chamber 4. The heat exchange chamber 6 is equipped with a heat exchange pipe 7 connecting the combustion chamber 4 and the flue gas chamber 5. The furnace body 1 is equipped with a flue gas pipe 12 communicating with the flue gas chamber 5. The furnace body 1 is also equipped with an air inlet 8 and an air outlet 9 communicating with the heat exchange chamber 6. The centrifugal fan 3 is located at the air outlet 9. An air outlet pipe 10 is connected to the air outlet of the centrifugal fan 3. An air inlet baffle 11 is provided at the air inlet 8, covering its opening and allowing its opening size to be adjusted. An air outlet baffle 13 is provided at the flue gas outlet of the flue gas pipe 12, covering its opening and allowing its opening size to be adjusted. A dustproof mesh plate 14 is also provided at the air inlet 8. Specifically, in this embodiment, the burner 2 is an industrial burner with an integrated air supply system. Air is drawn in through its air supply system and mixed with fuel such as natural gas or fuel oil. After being sprayed out, it is ignited and burned in the combustion chamber to form high-temperature flue gas. The flue gas releases heat into the heat exchange chamber 6 through the heat exchange tube 7. The centrifugal fan 3 extracts the high-temperature air from the heat exchange chamber 6 and sends it to the drying workshop through the air outlet 10. A negative pressure is formed in the heat exchange chamber 6, and external air is drawn in through the air inlet 8 to supplement it, forming a complete air heating cycle.

[0021] In this embodiment, a vertical groove 15 is provided at the air inlet 8. The dustproof mesh plate 14 is inserted into the vertical groove 15 and slides with it. A handle 16 is provided on the top of the dustproof mesh plate 14. By setting the vertical groove 15 and the slidingly engaged dustproof mesh plate 14, it is convenient for staff to regularly remove the dustproof mesh plate 14 for cleaning or replacement. The handle 16 further improves the convenience of installing and removing the dustproof mesh plate 14, ensuring the continuous and stable dustproof effect.

[0022] In this embodiment, the air inlet 8 and the exhaust pipe 12 are respectively provided with sockets. The air inlet plate 11 and the exhaust plate 13 are respectively inserted into the corresponding sockets and slide in cooperation with them. The outer edges of the air inlet plate 11 and the exhaust plate 13 are provided with bent pull handles. The sliding cooperation structure between the sockets and the plates is simple and reliable. The operator can easily push the air inlet plate and the exhaust plate by pulling the handles to flexibly adjust the air volume of the air inlet 8 and the exhaust volume of the exhaust pipe 12 to adapt to different heating needs of the ceramic drying workshop. At the same time, this structure is easy to operate and has high adjustment accuracy.

[0023] In this embodiment, the combustion chamber 4 is located within the heat exchange chamber 6. The inlet end of the heat exchange tube 7 is connected to the side of the combustion chamber 4 away from the burner 2, and the outlet end of the heat exchange tube 7 is connected to the exhaust chamber 5. The heat exchange tubes 7 are meanderingly distributed within the heat exchange chamber 6. The combustion chamber 4 is made of high-temperature resistant stainless steel (withstanding temperatures up to 1190℃ or higher) with a thickness of 3-5mm to ensure structural stability under long-term high-temperature use. The inlet end of the heat exchange tube 7 is connected to the side of the combustion chamber 4 away from the burner 2 using argon arc welding. The weld height is not less than the wall thickness of the heat exchange tube 7 to ensure a leak-proof seal. The outlet end of the heat exchange tube 7 is connected to the exhaust chamber 5, also sealed using argon arc welding. The heat exchange tubes 7 are meandering within the heat exchange chamber 6. These tubes are made of seamless steel pipes with a diameter of 50-80mm and a wall thickness of 2-3mm. The bending radius at the bends of the heat exchange tubes 7 is greater than 100mm to prevent increased resistance to flue gas flow due to excessively small bending radii. By placing the combustion chamber 4 within the heat exchange chamber 6, the heat emitted by the combustion chamber 4 can directly act on the air within the chamber. Simultaneously, the meandering heat exchange tubes 7 significantly increase the contact area between the tubes and the air within the chamber, extending the heat exchange time and significantly improving heat exchange efficiency, ensuring a stable and sufficient temperature of the hot air entering the workshop.

[0024] In this embodiment, a plurality of heat exchange fins 18 are provided inside the heat exchange chamber 6, and the heat exchange fins 18 are welded to the outer surface of the heat exchange tube 7. Specifically, the welding spacing of the heat exchange fins 18 on the heat exchange tube 7 is 19-30mm. The arrangement of the heat exchange fins 18 further increases the heat dissipation area of ​​the heat exchange tube 7, accelerates the heat exchange rate between the heat exchange tube 7 and the air in the heat exchange chamber 6, and enables the air in the heat exchange chamber 6 to absorb heat more quickly, further improving the overall heat exchange efficiency of the device and reducing heat waste.

[0025] In this embodiment, a protective net 19 is provided at the opening of the exhaust pipe 12. The protective net 19 can effectively prevent external debris from entering the exhaust pipe 12 and causing blockage, and at the same time, it can also prevent personnel from accidentally contacting the inside of the exhaust pipe 12, thereby improving the safety of equipment use.

[0026] In this embodiment, the furnace body 1 is provided with an insulation layer 20 inside the furnace wall. Specifically, the insulation layer 20 can be filled with rock wool insulation material. The insulation layer 20 can effectively reduce the heat loss from the inside of the furnace body 1 to the outside, reduce energy consumption, maintain the temperature stability of each chamber inside the furnace body 1, ensure that the heat exchange process is carried out continuously and efficiently, and at the same time avoid the risk of burns to the staff caused by the excessively high temperature outside the furnace body 1.

[0027] In this embodiment, the furnace body 1 is provided with an observation window 21 for observing the combustion status in the combustion chamber. Furthermore, the combustion chamber 4 is provided with a viewing window made of transparent heat-resistant glass (such as quartz glass). Through the observation window 21, the operator can observe the combustion status of the burner 2 in the combustion chamber 4 in real time, which facilitates timely detection of combustion abnormalities and adjustment, ensuring that the burner 2 is always in a normal and efficient combustion state, and ensuring the stability of the heating effect of the device.

[0028] Furthermore, the heating device for the ceramic drying workshop of this utility model also includes a control system connected to the burner 2 and the centrifugal fan 3. The burner 2 is an industrial burner with adjustable power, and the power adjustment range is 20-50kw. A temperature sensor connected to the control system is installed at the air outlet duct 10. The control system adjusts the power of the burner 2 and the centrifugal fan 3 based on the air outlet temperature fed back by the temperature sensor. By adjusting the combustion fire and the air outlet force, the air outlet temperature is controlled within a suitable temperature range of 55-70℃. In addition, the operator can adjust the opening size of the air inlet 8 and the smoke exhaust duct 12 through the air inlet baffle 11 and the smoke exhaust baffle 13 to control the air intake and smoke exhaust efficiency, adjust the temperature in the heat exchange chamber, and indirectly adjust the air outlet temperature.

[0029] The working principle of this utility model is as follows: In this embodiment, the burner 2 draws in air and mixes it with fuel such as natural gas or fuel oil, which is then injected and ignited in the combustion chamber to form high-temperature flue gas. The flue gas releases heat through the heat exchange tube 7 into the heat exchange chamber 6. The centrifugal fan 3 extracts the high-temperature air from the heat exchange chamber 6 and sends it to the drying workshop through the air outlet 10. A negative pressure is formed in the heat exchange chamber 6, and external air is drawn in through the air inlet 8 to supplement it, forming a complete air heating cycle. The air intake and exhaust volume are adjusted by adjusting the opening size of the air inlet 8 and the exhaust pipe 12. For example, when the opening of the exhaust pipe 12 is reduced, the exhaust efficiency decreases, and the high-temperature flue gas can undergo sufficient heat exchange in the heat exchange tube 7, thereby increasing the outlet air temperature of the centrifugal fan 3. This achieves dynamic adjustment of hot air temperature and air volume, ensuring that a suitable drying environment is always maintained in the workshop.

[0030] The beneficial effects of this utility model are as follows: This device constructs an efficient heat exchange path by rationally dividing the combustion chamber 4, the exhaust chamber 5, and the heat exchange chamber 6 within the furnace body 1, and setting a heat exchange tube 7 connecting the combustion chamber 4 and the exhaust chamber 5 within the heat exchange chamber 6. The high-temperature flue gas generated by the burner 2 can flow fully within the heat exchange tube 7 and exchange heat with the air in the heat exchange chamber 6. Compared with traditional equipment, the heat exchange area is significantly increased. Adjustable air inlet baffles 11 and smoke exhaust baffles 13 are respectively installed at the air inlet 8 and the smoke exhaust pipe 12, which can control the air intake and smoke exhaust volume. According to actual needs, the staff can change the opening size of the air inlet 8 and the smoke exhaust pipe 12 by sliding the air inlet baffles 11 and the smoke exhaust baffles 13 to achieve dynamic adjustment of hot air temperature and air volume, ensuring that a suitable drying environment is always maintained in the workshop, improving the uniformity of drying of the blanks and reducing the defect rate.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A heating device for a ceramic air-drying workshop, comprising a furnace body, a burner, and a centrifugal fan, characterized in that, The furnace body is equipped with a combustion chamber, a flue gas chamber, and a heat exchange chamber. The burner is connected to the combustion chamber, and the flame output end of the burner extends into the interior of the combustion chamber. The heat exchange chamber is equipped with a heat exchange tube connecting the combustion chamber and the flue gas chamber. The furnace body is equipped with a flue gas pipe that connects to the flue gas chamber. The furnace body is also equipped with an air inlet and an air outlet that connect to the heat exchange chamber. A centrifugal fan is located at the air outlet, and an air outlet pipe is connected to the air outlet of the centrifugal fan. The air inlet is equipped with an air inlet baffle that covers its opening and allows for adjustment of its opening size. The flue gas outlet of the flue gas pipe is equipped with an exhaust baffle that covers its opening and allows for adjustment of its opening size. A dustproof mesh plate is also provided at the air inlet.

2. The heating device for a ceramic drying workshop according to claim 1, characterized in that, The air inlet is equipped with a vertical sliding groove, and the dustproof mesh plate is inserted into the vertical sliding groove and slides with it. The top of the dustproof mesh plate is equipped with a handle.

3. The heating device for a ceramic drying workshop according to claim 1, characterized in that, The air inlet and the smoke exhaust pipe are respectively equipped with sockets. The air inlet plate and the smoke exhaust plate are inserted into the corresponding sockets and slide together. The outer edges of the air inlet plate and the smoke exhaust plate are equipped with pull handles formed by bending.

4. The heating device for a ceramic air-drying workshop according to claim 1, characterized in that, The combustion chamber is located in the heat exchange chamber. The inlet end of the heat exchange tube is connected to the side of the combustion chamber away from the burner, and the outlet end of the heat exchange tube is connected to the flue gas chamber. The heat exchange tubes are distributed in a meandering manner in the heat exchange chamber.

5. A heating device for a ceramic drying workshop according to claim 1 or 4, characterized in that, The heat exchange chamber is equipped with several heat exchange fins, which are welded to the outer surface of the heat exchange tube.

6. The heating device for a ceramic drying workshop according to claim 1, characterized in that, A protective net is installed at the opening of the exhaust pipe.

7. The heating device for a ceramic drying workshop according to claim 1, characterized in that, The furnace body has an insulation layer inside the furnace wall.

8. The heating device for a ceramic drying workshop according to claim 1, characterized in that, The furnace body is equipped with an observation window for observing the combustion status in the combustion chamber.

9. The heating device for a ceramic drying workshop according to claim 1, characterized in that, It also includes a control system connected to the burner and centrifugal fan, and a temperature sensor connected to the control system is installed at the air outlet duct.

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