Hot blast stove

Abstract

The utility model provides a hot blast stove, which comprises a main stove; the auxiliary compartment is fixedly installed on the rear side of the main furnace, a smoke guiding machine is fixedly installed on one side of the top of the auxiliary compartment, and a main draught fan is fixedly installed on one side of the surface of the smoke guiding machine; the feeding fan is fixedly mounted on one side of the outer surface of the main furnace, and a granulator is fixedly mounted at the top of the feeding fan; the air inlet pipe is fixedly installed at the bottom of the rear side of the auxiliary compartment, and an exhaust pipe is fixedly installed at the top of the rear side of the auxiliary compartment. According to the hot-blast stove provided by the utility model, heat discharged from the fixation machine is introduced into the main stove through the air inlet pipe, residual heat in the main stove is introduced into the fixation machine through the exhaust pipe, so that heat circulation is realized, the auxiliary compartment, the feeding fan and the combustion fan supply heat to the main stove, and the heating effect of the hot-blast stove is improved; and efficient utilization of heat circulation is achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of tea processing, and in particular to a hot air furnace. Background Technology

[0002] Tea, as one of the world's most popular beverages, boasts a long history and rich cultural connotations. Originating in China, its cultivation, processing, and consumption methods have continuously evolved and developed over thousands of years. From its initial medicinal use to its later status as a daily beverage, tea has gradually become integrated into people's lives. There are many types of tea, commonly including green tea, black tea, oolong tea, white tea, and dark tea. Green tea, such as Longjing and Biluochun, is unfermented, retaining the natural color and nutrients of the tea leaves, with a refreshing and crisp taste. Black tea, like Qimen black tea and Zhengshan Xiaozhong, undergoes full fermentation, resulting in a bright red liquor and a mellow flavor. Oolong tea, such as Tieguanyin and Da Hong Pao, uses a semi-fermentation process, combining the fragrance of green tea with the richness of black tea. White tea, represented by Baihao Yinzhen, is simply processed and has a cooling nature. Dark tea, such as Pu'er, undergoes a long period of pile fermentation, giving it a unique aged aroma and flavor. Health Benefits: The quality of tea depends on multiple factors, including the tea variety, growing environment, harvesting time, and processing techniques. High-quality tea usually comes from high-altitude, pollution-free tea gardens. Harvesting requires the tea to be fresh and uniform. The processing is even more crucial; from fixing and rolling to roasting, each step requires careful control by experienced craftsmen to ensure the tea's color, aroma, flavor, and shape reach their optimal state. Drinking tea is not only a sensory enjoyment but also beneficial to health. Tea contains abundant polyphenols, caffeine, vitamins, and other nutrients, offering various benefits such as antioxidant properties, mental alertness, lipid reduction, weight loss, and prevention of cardiovascular diseases. Different types of tea have slightly different health benefits.

[0003] In short, tea, a gift from nature, with its rich varieties, unique flavor, and numerous benefits, has become an indispensable part of people's lives, conveying warmth and beauty. The tea-making process is extremely meticulous, with basic steps including: withering → spreading → shaking → oxidation → fixation → rolling → drying → finished tea. However, the hot air furnace used for oxidation is a device that heats incoming cold air into hot air and outputs it. During the tea-making process, the hot air in the furnace is used to dry or shake the tea leaves, thereby improving the quality of the tea.

[0004] Tea is a type of plant leaf that can be brewed with boiling water, giving the tasteless water a fragrant aroma. As tea became known to people, more and more tea varieties appeared, and drinking tea became a popular activity in China. However, tea leaves need to be processed before drinking to dry them so that they can be brewed with boiling water. Therefore, electric hot air furnaces are needed to process the tea leaves. Hot air furnaces are mainly used to generate high-temperature hot air for heating purposes, including drying tea leaves and Chinese herbal medicines, and fixing tea leaves. Tea processing involves many steps. The hot air furnace is connected to a fixing machine to fix and dry the tea leaves. However, the hot air furnace generally adds heat to the furnace through a heating device. After processing, the residual heat inside the hot air furnace is wasted, resulting in low energy utilization in the factory.

[0005] Therefore, it is necessary to provide a hot blast stove to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a hot air furnace that solves the problem of the low utilization rate of thermal energy in factories, where hot air furnaces are connected to a tea-fixing machine for fixing and drying tea leaves. Hot air furnaces typically add heat to the furnace through a heating device, and the residual heat inside the furnace is wasted after processing.

[0007] To solve the above-mentioned technical problems, this utility model provides a hot air furnace, comprising: a main furnace;

[0008] The auxiliary compartment is fixedly installed on the rear side of the main furnace. A smoke induced fan is fixedly installed on one side of the top of the auxiliary compartment, and a main fan is fixedly installed on one side of the surface of the smoke induced fan.

[0009] A feeding blower is fixedly installed on one side of the outer surface of the main furnace, and a pellet mill is fixedly installed on the top of the feeding blower.

[0010] An air intake pipe is fixedly installed at the bottom of the rear side of the auxiliary compartment, and an exhaust pipe is fixedly installed at the top of the rear side of the auxiliary compartment.

[0011] Preferably, a furnace door is provided at the bottom of the surface of the main furnace, and a combustion-supporting fan is fixedly installed at the bottom of the main furnace.

[0012] Preferably, the surface of the pellet mill is provided with a pellet mill speed control gauge.

[0013] Preferably, a temperature indicator is fixedly installed on the other side of the surface of the smoke generator.

[0014] Preferably, a moving device is provided at the bottom of the outer surface of the auxiliary compartment. The moving device includes a fixed block, a hydraulic cylinder, a support plate, and a second universal wheel. An auxiliary device is fixedly connected to one side of the moving device. The auxiliary device includes a connecting plate, a connecting ring block, and a first universal wheel.

[0015] Preferably, the two fixing blocks are fixedly installed on both sides of the outer surface of the auxiliary compartment, the hydraulic cylinder is fixedly installed on the top of the surface of the fixing blocks, the support plate is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder, and the two second universal wheels are respectively arranged on both sides of the bottom of the support plate.

[0016] Preferably, the connecting plate is fixedly connected to one side of the surface of the support plate, the connecting ring block is fixedly connected to the surface of the connecting plate, and the four first universal wheels are respectively arranged around the bottom of the connecting ring block.

[0017] Preferably, the output shaft of the hydraulic cylinder passes through the outer surface of the bottom of the fixed block, and the output shafts of the two hydraulic cylinders are respectively fixedly connected to the two sides of the top of the support plate.

[0018] Preferably, the support plate is slidably installed in the middle of the bottom of the auxiliary compartment.

[0019] Preferably, the connecting ring block is slidably installed at the bottom of the main furnace.

[0020] Hot air furnace start-up operation: Turn on the power and check if the power supply is normal; check if the high temperature fan and induced draft fan are rotating in the correct direction; open the furnace door and select some pellets to send into the furnace chamber, and ignite them with fuel; after ignition, turn on the induced draft fan and start the pellet mill at the same time, it is recommended to set it to level 6-7.

[0021] When the temperature indicator shows 180℃-240℃, start the main fan immediately.

[0022] The main fan's airflow should be adjusted automatically according to the moisture content and yield of the tea leaves. The temperature should also be adjusted using the speed control dial of the pellet mill. During normal use, the recovered heat energy may increase after two hours. Pay attention to the temperature indicator. If the temperature is too high, please reduce the speed setting of the pellet mill. If the tea leaves are too dry, it indicates that the airflow is too large. Under normal circumstances, it is recommended to set the frequency converter to 400 Hz. Keep the pellet burner pipes unobstructed to prevent blockage.

[0023] Compared with related technologies, the hot air furnace provided by this utility model has the following beneficial effects:

[0024] This utility model provides a hot air furnace that introduces the heat discharged from the blanching machine into the main furnace through the air inlet pipe, and guides the residual heat inside the main furnace into the blanching machine through the exhaust pipe, thereby realizing heat circulation. The auxiliary chamber, feeding fan and combustion fan supply heat to the main furnace, which improves the heating effect of the hot air furnace, realizes the efficient utilization of heat circulation, and improves the practicality of the device.

[0025] This utility model provides a hot air furnace. An external power source controls the output shaft of a hydraulic cylinder to move downwards, pushing a support plate downwards. The support plate then moves a second universal wheel downwards to support the ground. The support plate also moves an auxiliary device downwards, causing the first universal wheel at the bottom of the connecting ring block to support the ground, while the main furnace and auxiliary compartment are suspended in the air. Users can move and transport the hot air furnace using the universal wheels. This device has a simple structure and is highly practical. The hot air furnace can be stably placed on the ground, and the universal wheels can be adjusted to support the ground according to transportation needs, facilitating the transport of the hot air furnace by operators and improving the practicality and flexibility of the device. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a first embodiment of a hot air furnace provided by this utility model;

[0027] Figure 2 for Figure 1 The diagram shows a side view of the main furnace.

[0028] Figure 3 A schematic diagram of the structure of a second embodiment of a hot air furnace provided by this utility model;

[0029] Figure 4 for Figure 3 The enlarged schematic diagram at point A is shown.

[0030] Numbered in the diagram: 1. Main furnace, 2. Auxiliary chamber, 3. Pellet mill, 4. Smoke induced draft fan, 5. Main blower, 6. Temperature indicator, 7. Pellet mill speed control, 8. Furnace door, 9. Feeding blower, 10. Combustion blower, 11. Exhaust pipe, 12. Inlet pipe, 13. Auxiliary device, 131. Connecting plate, 132. Connecting ring block, 133. First caster wheel, 14. Moving device, 141. Fixing block, 142. Hydraulic cylinder, 143. Support plate, 144. Second caster wheel. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 and Figure 2 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a hot air furnace provided by this utility model; Figure 2 for Figure 1 The diagram shows a side view of the main furnace. A hot blast stove includes: a main furnace 1;

[0034] Auxiliary compartment 2 is fixedly installed on the rear side of the main furnace 1. A smoke induced fan 4 is fixedly installed on one side of the top of the auxiliary compartment 2, and a main fan 5 is fixedly installed on one side of the surface of the smoke induced fan 4.

[0035] Feeding blower 9, the feeding blower 9 is fixedly installed on one side of the outer surface of the main furnace 1, and a pellet mill 3 is fixedly installed on the top of the feeding blower 9;

[0036] An air intake pipe 12 is fixedly installed at the bottom of the rear side of the auxiliary compartment 2, and an exhaust pipe 11 is fixedly installed at the top of the rear side of the auxiliary compartment 2.

[0037] A furnace door 8 is provided at the bottom of the surface of the main furnace 1, and a combustion fan 10 is fixedly installed at the bottom of the main furnace 1.

[0038] The surface of the pellet mill 3 is provided with a pellet mill speed control gauge 7.

[0039] A temperature indicator 6 is fixedly installed on the other side of the surface of the smoke generator 4.

[0040] Start-up operation of hot air furnace

[0041] 1. Turn on the power and check if the power supply is normal;

[0042] 2. Check if the high-temperature fan and induced draft fan are rotating in the correct direction;

[0043] 3. Open the furnace door 8 and select some pellets to send into the furnace chamber, then ignite them with fuel;

[0044] 4. After ignition, turn on the smoke ignition fan 4 and simultaneously turn on the pellet mill 3, which is recommended to be set to level 6-7.

[0045] When the temperature indicator 6 shows a temperature of 180℃-240℃, immediately start the main fan 5.

[0046] The airflow of the main fan 5 should be adjusted automatically according to the moisture content and yield of the tea leaves. The temperature should also be adjusted using the speed control dial 7 of the pellet mill. During normal use, the recovered heat energy may increase after two hours. Pay attention to the changes in the temperature indicator 6. If the temperature is too high, please reduce the speed setting of the speed control dial 7 of the pellet mill. If the tea leaves are too dry, it means that the airflow is too large. It is recommended to set the frequency converter to 400 Hz under normal conditions. Keep the pellet burner pipes unobstructed to prevent blockage.

[0047] Hot blast furnace shutdown operation

[0048] 1. Turn off the pellet burner and wait for the furnace to cool completely;

[0049] 2. After cooling, turn off the smoke venting fan and main fan, and turn off the power.

[0050] 3. Regularly clean the carbon deposits and dust from the furnace, hot air circulation pipes, and chimney. Take precautions to avoid burns.

[0051] The working principle of the hot air furnace provided by this utility model is as follows:

[0052] When working, first turn on the power and check if the power supply is normal; check if the high-temperature fan and induced draft fan are rotating in the correct direction; open the furnace door 8 and select some pellets to send into the furnace, and ignite them with fuel; after ignition, turn on the smoke ignition fan 4 and at the same time turn on the pellet mill 3, it is recommended to set it to level 6-7; when the temperature indicator 6 shows that it has reached 180℃-240℃, immediately start the main fan 5.

[0053] When the main furnace 1 is shut down, heat is transferred to the blanching machine through the exhaust pipe 11 to achieve heat circulation.

[0054] The main furnace 1 burns pellets and has an inner liner to provide heat efficiency, reaching a temperature of up to 800 degrees Celsius. The main furnace 1 is connected to the blanching machine through an air inlet pipe 12 and an exhaust pipe 11. The blanching machine is equipped with a dehumidification device, which removes moisture through a pipe. The hot air in the moisture is then discharged into the auxiliary chamber 2 through the air inlet pipe 12. The auxiliary chamber 2 then blows this hot air back into the main furnace 1. Through the exhaust pipe 11, the heat inside the main furnace 1 is transferred to the blanching machine, achieving efficient utilization of heat circulation.

[0055] Compared with related technologies, the hot air furnace provided by this utility model has the following beneficial effects:

[0056] This utility model provides a hot air furnace, which introduces the heat discharged from the blanching machine into the interior of the main furnace 1 through the air inlet pipe 12, and guides the residual heat inside the main furnace 1 into the blanching machine through the exhaust pipe 11, thereby realizing heat circulation. The auxiliary chamber 2, the feeding fan 9 and the combustion fan 10 provide heat to the main furnace 1, which improves the heating effect of the hot air furnace, realizes the efficient utilization of heat circulation, and improves the practicality of the device.

[0057] Second Embodiment

[0058] Please refer to the following: Figure 3 and Figure 4 Based on the hot blast stove provided in the first embodiment of this application, the second embodiment of this application proposes another hot blast stove. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0059] Specifically, the second embodiment of this application provides a hot air furnace that differs in that a hot air furnace has a moving device 14 provided at the bottom of the outer surface of the auxiliary compartment 2. The moving device 14 includes a fixing block 141, a hydraulic cylinder 142, a support plate 143, and a second universal wheel 144. An auxiliary device 13 is fixedly connected to one side of the moving device 14. The auxiliary device 13 includes a connecting plate 131, a connecting ring block 132, and a first universal wheel 133.

[0060] Two fixing blocks 141 are respectively fixedly installed on both sides of the outer surface of the auxiliary compartment 2, the hydraulic cylinder 142 is fixedly installed on the top of the surface of the fixing block 141, the support plate 143 is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder 142, and two second universal wheels 144 are respectively arranged on both sides of the bottom of the support plate 143.

[0061] The connecting plate 131 is fixedly connected to one side of the surface of the support plate 143, the connecting ring block 132 is fixedly connected to the surface of the connecting plate 131, and the four first universal wheels 133 are respectively arranged around the bottom of the connecting ring block 132.

[0062] The output shaft of the hydraulic cylinder 141 passes through the outer surface of the bottom of the fixed block 141, and the output shafts of the two hydraulic cylinders 141 are respectively fixedly connected to the two sides of the top of the support plate 143.

[0063] The support plate 143 is slidably installed in the middle of the bottom of the auxiliary compartment 2.

[0064] The connecting ring block 132 is slidably installed at the bottom of the main furnace 1.

[0065] When the output shaft of the hydraulic cylinder 142 does not move downward, the output shaft of the hydraulic cylinder 142 drives the support plate 143 to adhere to the bottom surface of the auxiliary compartment 2. The support plate 143 and the bottom surface of the auxiliary compartment 2 are in contact. When the output shaft of the hydraulic cylinder 142 moves downward, it pushes the support plate 143 to move downward, so that the second universal wheel 144 moves downward and is lower than the support frame of the auxiliary compartment 2, so that the auxiliary compartment 2 is suspended in the air and the second universal wheel 144 is in contact with the ground, which facilitates the movement of the second universal wheel 144 and prevents the auxiliary compartment 2 from hitting the ground.

[0066] The support plate 143 and the connecting plate 131 are fixedly connected together. The connecting plate 131 drives the connecting ring block 132 and the first universal wheel 133 to move downward together. The first universal wheel 133 and the second universal wheel 144 remain horizontal.

[0067] The working principle of the hot air furnace provided by this utility model is as follows:

[0068] During operation, the output shaft of the hydraulic cylinder 142 is first moved downward by the external power supply, pushing the support plate 143 downward. The support plate 143 drives the second universal wheel 144 to move downward and support the ground. The support plate 143 drives the auxiliary device 13 to move downward together, so that the first universal wheel 133 at the bottom of the connecting ring block 132 supports the ground, and the main furnace 1 and the auxiliary chamber 2 are suspended in the air. The user can move the hot blast furnace through the first universal wheel 133 and the second universal wheel 144 to push the hot blast furnace to a suitable processing position.

[0069] Then, the output shaft of the hydraulic cylinder 142 is controlled by an external power source to move upward. The output shaft of the hydraulic cylinder 142 pulls the support plate 143 upward. The support plate 143 is attached to the surface of the bottom of the auxiliary compartment 2, and the second universal wheel 144 moves upward with the support plate 143. The second universal wheel 144 is no longer attached to the ground, so that the support feet at the bottom of the auxiliary compartment 2 support the ground. While the support plate 143 moves, it drives the connecting plate 131 to move. The connecting plate 131 drives the connecting ring block 132 and the first universal wheel 133 to move together.

[0070] Compared with related technologies, the hot air furnace provided by this utility model has the following beneficial effects:

[0071] This utility model provides a hot air furnace. An external power source controls the output shaft of a hydraulic cylinder 142 to move downwards, pushing a support plate 143 downwards. The support plate 143 drives the second universal wheel 144 downwards and supports the ground. The support plate 143 also drives the auxiliary device 13 downwards, causing the first universal wheel 133 at the bottom of the connecting ring block 132 to support the ground, while the main furnace 1 and auxiliary compartment 2 are suspended. Users can move and transport the hot air furnace using the universal wheels. This device has a simple structure and strong practicality. The hot air furnace can be stably placed on the ground, and the universal wheels can be adjusted to support the ground according to transportation needs, facilitating the operator's transportation of the hot air furnace and improving the practicality and flexibility of the device.

[0072] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hot air furnace, characterized in that, include: Main furnace; The auxiliary compartment is fixedly installed on the rear side of the main furnace. A smoke induced fan is fixedly installed on one side of the top of the auxiliary compartment, and a main fan is fixedly installed on one side of the surface of the smoke induced fan. A feeding blower is fixedly installed on one side of the outer surface of the main furnace, and a pellet mill is fixedly installed on the top of the feeding blower. An air intake pipe is fixedly installed at the bottom of the rear side of the auxiliary compartment, and an exhaust pipe is fixedly installed at the top of the rear side of the auxiliary compartment.

2. A hot air furnace according to claim 1, characterized in that, A furnace door is provided at the bottom of the surface of the main furnace, and a combustion-supporting fan is fixedly installed at the bottom of the main furnace.

3. A hot air furnace according to claim 1, characterized in that, The surface of the pellet mill is equipped with a pellet mill speed control gauge.

4. A hot air furnace according to claim 1, characterized in that, A temperature indicator is fixedly installed on the other side of the surface of the smoke generator.

5. A hot air furnace according to claim 1, characterized in that, A moving device is provided at the bottom of the outer surface of the auxiliary compartment. The moving device includes a fixed block, a hydraulic cylinder, a support plate, and a second universal wheel. An auxiliary device is fixedly connected to one side of the moving device. The auxiliary device includes a connecting plate, a connecting ring block, and a first universal wheel.

6. A hot air furnace according to claim 5, characterized in that, The two fixing blocks are respectively fixedly installed on both sides of the outer surface of the auxiliary compartment, the hydraulic cylinder is fixedly installed on the top of the surface of the fixing blocks, the support plate is fixedly connected to the bottom end of the output shaft of the hydraulic cylinder, and the two second universal wheels are respectively arranged on both sides of the bottom of the support plate.

7. A hot air furnace according to claim 5, characterized in that, The connecting plate is fixedly connected to one side of the surface of the support plate, the connecting ring block is fixedly connected to the surface of the connecting plate, the four first universal wheels are respectively arranged around the bottom of the connecting ring block, the output shaft of the hydraulic cylinder passes through the outer surface of the bottom of the fixed block, the output shafts of the two hydraulic cylinders are respectively fixedly connected to the two sides of the top of the support plate, the support plate is slidably installed in the middle of the bottom of the auxiliary compartment, and the connecting ring block is slidably installed at the bottom of the main furnace.

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