Energy-saving ceramic kiln

Abstract

The utility model discloses an energy -saving ceramic kiln, include: the furnace body of inside installation has electric heating wire, the furnace bottom, the furnace bottom sliding is placed in the inside of furnace body, the bottom of furnace bottom one end is installed with the moving wheel, the heat exchange purification subassembly, the heat exchange purification subassembly is placed in the top of furnace body, the heat exchange purification subassembly includes the exhaust pipe of inserting furnace body inside, the utility model has the beneficial effects that: the hot gas of exhaust pipe is discharged first and contacts the baffle, and the heat is given to the heat exchange pipe, and then the heat exchange pipe is used with the heat exchange of water, and the heat that will originally dissipate to the environment is recovered for heating water, improves the utilization of energy, and reduces energy consumption, simultaneously, the hot gas flows in the heat exchange box process and continuously exchanges heat with the heat exchange pipe, and the waste heat recovery effect is strengthened, and the top of heat exchange pipe is the rectangular structure and is the conical structure in the bottom, and the rectangular structure top is fixedly connected with the fin and is provided with the heat exchange groove in the side, and the contact area of hot gas and heat exchange pipe is increased.

Description

Technical Field

[0001] This utility model relates to the field of kiln technology, specifically to an energy-saving ceramic kiln. Background Technology

[0002] A ceramic kiln is a specialized piece of equipment used for firing ceramics and is widely used in the ceramic industry. The kiln's function is to provide a uniform high-temperature environment to allow the ceramic raw materials to undergo chemical and physical reactions, thereby forming the desired ceramic products. Existing ceramic kilns partially rely on electric heating and achieve optimal firing results through precise control of temperature, time, and atmosphere. During operation, the kiln needs to exhaust gas, which carries a certain temperature. Without heat recovery, this heat is directly released into the atmosphere, resulting in significant energy waste. Electric kilns, in particular, consume a large amount of electricity during heating; without heat recovery, even more energy is needed to maintain the kiln's operating temperature, reducing overall energy efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an energy-saving ceramic kiln to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving ceramic kiln, comprising:

[0005] The furnace body has heating elements installed inside;

[0006] The furnace bottom is slidably placed inside the furnace body, and a caster wheel is installed at one end of the furnace bottom.

[0007] A heat exchange and purification assembly is placed on top of the furnace body. The heat exchange and purification assembly includes an exhaust pipe inserted into the furnace body. A heat exchange box is installed on top of the exhaust pipe. A baffle is slidably arranged inside the heat exchange box to adjust the size of the opening at the top of the exhaust pipe while recovering waste heat. A heat exchange tube is slidably connected inside the baffle to recover waste heat from the air discharged from the exhaust pipe. A filter section for filtering air is connected to the top of the heat exchange box.

[0008] Preferably, a furnace door is rotatably connected to the end of the furnace body, a U-shaped frame is fixed to one end of the furnace door, and a threaded rod that mates with the U-shaped frame is installed at the end of the furnace body.

[0009] Preferably, an outer support is fixedly connected to the outside of the furnace body, and a bottom track that cooperates with the moving wheels is fixedly connected to the bottom of the outer support.

[0010] Preferably, one end of the heat exchange box is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to the baffle plate.

[0011] Preferably, the heat exchange tube has a rectangular top and a conical bottom. The top of the rectangular structure is fixed with fins and a heat exchange groove is provided on its side. The heat exchange box has a drain hole inside, and the end of the drain hole is connected by a water pipe to guide water to flow from the middle of different heat exchange tubes.

[0012] Preferably, the filtration section includes a filter box, and an exhaust port is provided at the top end of the heat exchange box, the exhaust port being connected to the filter box.

[0013] Preferably, a filter element limiting frame is inserted inside the filter box, and a coarse filter, a medium-efficiency filter, a high-efficiency filter, and an activated carbon filter are arranged sequentially inside the filter element limiting frame along the air outlet direction.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: High-efficiency waste heat recovery is achieved through the heat exchange purification component. The hot air discharged from the exhaust pipe first contacts the baffle plate, transferring heat to the heat exchange tube. Then, the heat exchange tube exchanges heat with water, recovering heat that would otherwise be lost to the environment for heating water, thus improving energy utilization and reducing energy consumption. Simultaneously, the hot air continuously exchanges heat with the heat exchange tube during its flow within the heat exchange box, enhancing the waste heat recovery effect. The heat exchange tube has a rectangular top and a conical bottom. Fins are fixed to the top of the rectangular structure, and heat exchange grooves are opened on the sides, increasing the contact area between the hot air and the heat exchange tube and improving heat exchange efficiency. Furthermore, the water flows in an S-shaped path between multiple drain holes, fully absorbing heat from the heat exchange tube, making heat recovery more complete. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger box of this utility model;

[0017] Figure 3 This is a schematic diagram of the heat exchange tube of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the furnace bottom of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter box of this utility model;

[0020] Figure 6 This is a schematic diagram of the filter element limiting frame of this utility model.

[0021] In the diagram: 1. Outer support; 2. Furnace body; 3. Furnace door; 4. Heating wire; 5. Furnace bottom; 6. Casters; 7. Bottom track; 8. Heat exchange box; 9. Exhaust pipe; 10. Connecting water pipe; 11. Heat exchange tube; 12. Drain hole; 13. Fins; 14. Baffle plate; 15. Electric push rod; 16. Exhaust port; 17. Filter box; 18. Filter element limiter. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, this utility model provides a technical solution: an energy-saving ceramic kiln, comprising: a furnace body 2 with an electric heating wire 4 installed inside; a furnace bottom 5 slidably installed inside the furnace body 2, with a moving wheel 6 rotatably installed at one end of the furnace bottom 5 via a support rod; a heat exchange and purification assembly placed on top of the furnace body 2, the heat exchange and purification assembly including an exhaust pipe 9 inserted into the furnace body 2 from the top, a heat exchange box 8 fixedly installed on the top of the exhaust pipe 9, a baffle plate 14 slidably connected inside the heat exchange box 8 for adjusting the size of the opening at the top of the exhaust pipe 9 while recovering waste heat, a heat exchange tube 11 slidably connected inside the baffle plate 14 for recovering waste heat from the air discharged from the exhaust pipe 9, and a filter section for filtering air connected to the top of the heat exchange box 8.

[0024] It should be noted that, in this embodiment, a temperature sensor is installed inside the furnace body 2, and a corresponding controller is installed on the outside of the furnace body 2. The ceramic to be fired is placed on top of the furnace bottom 5 using a placement rack, and the furnace bottom 5 is slid into the furnace body 2. The interior of the furnace body 2 is heated by the heating wire 4. During firing, the position of the baffle plate 14 is adjusted as needed, so that the baffle plate 14 slides on top of the exhaust pipe 9 to block and seal the top opening of the exhaust pipe 9, and the size of the exhaust port is adjusted. During this period, heat is discharged through the exhaust pipe 9 and comes into contact with the baffle plate 14. The baffle plate 14 transfers the heat to the heat exchange tube 11, thereby heating the heat exchange tube 11. A water pipe is connected to the heat exchange tube 11, and water is sent into the heat exchange tube 11 for heat exchange. In addition, the heat enters the heat exchange box 8 through the exhaust pipe 9. During the flow of heat in the heat exchange box 8, it can exchange heat with the heat exchange tube 11, thereby realizing heat recovery. The filter section can filter the airflow containing dust and particulate matter.

[0025] In one embodiment, a furnace door 3 is rotatably connected to the end of the furnace body 2, a U-shaped frame is fixedly connected to one end of the furnace door 3, a threaded rod that cooperates with the U-shaped frame is installed at the end of the furnace body 2, an outer support 1 is fixedly connected to the outside of the furnace body 2, and a bottom track 7 that cooperates with the moving wheel 6 is fixedly connected to the bottom of the outer support 1.

[0026] It should be noted that, in this embodiment, when it is necessary to feed material to the top of the furnace bottom 5, the furnace bottom 5 is pulled out from the inside of the furnace body 2, so that the moving wheel 6 at the bottom of the furnace bottom 5 rolls on the top of the bottom track 7. The bottom track 7 guides the movement of the furnace bottom 5. After feeding is completed, the furnace bottom 5 is pushed into the inside of the furnace body 2. The outer side of the threaded rod is threaded with a handwheel. When the furnace door 3 is rotated to close with the furnace body 2, the U-shaped frame is stuck on the outer side of the threaded rod. The U-shaped frame is pressed and fixed by rotating the handwheel, so that the furnace door 3 is closed with the furnace body 2.

[0027] In one embodiment, an electric push rod 15 is fixedly connected to one end of the heat exchange box 8, and the output end of the electric push rod 15 is fixedly connected to the baffle plate 14.

[0028] It should be noted that in this embodiment, the electric push rod 15 drives the baffle plate 14 to slide inside the heat exchange box 8. The bottom of the baffle plate 14 can block the top of the exhaust pipe 9. By adjusting the size of the opening, the size of the exhaust port can be adjusted.

[0029] In one embodiment, the top of the heat exchange tube 11 is a rectangular structure and the bottom is a conical structure. The top of the rectangular structure is fixed with fins 13 and the side is provided with heat exchange grooves. The heat exchange box 8 is provided with a drain hole 12, and the end of the drain hole 12 is connected by a water pipe 10 to guide water to flow from the middle of different heat exchange tubes 11.

[0030] It should be noted that in this embodiment, the baffle plate 14 is attached to the heat exchange tube 11, and both the heat exchange tube 11 and the baffle plate 14 are made of thermally conductive metal. The hot air discharged from the exhaust pipe 9 heats the baffle plate 14, and the baffle plate 14 can transfer heat to the heat exchange tube 11. Two adjacent drain holes 12 are connected by a connecting water pipe 10. With the cooperation of the heat exchange tube 11 and the connecting water pipe 10, the water flows in an S-shaped path between the multiple drain holes 12, which facilitates the absorption of heat from the heat exchange tube 11. The hot air can increase its contact area and heat exchange efficiency by contacting the bottom conical structure and heat exchange groove of the heat exchange tube 11 through the exhaust pipe 9. The hot air enters the heat exchange box through the exhaust pipe 9 and is discharged from the exhaust port 16 at one end. During this period, the hot air can contact the fins 13 for heat exchange, realizing the recovery of the heat from the hot air. The heat exchange tube 11 at the end is connected to the insulated water tank through the connecting water pipe 10 to store the hot water after heat exchange.

[0031] In one embodiment, the filtration section includes a filter box 17, and an exhaust port 16 is provided at the top end of the heat exchange box 8. The exhaust port 16 is connected to the filter box 17, and a filter element limiting frame 18 is inserted inside the filter box 17. The filter element limiting frame 18 is provided with a coarse filter, a medium-efficiency filter, a high-efficiency filter, and an activated carbon filter in sequence along the air outlet direction inside the filter element limiting frame 18.

[0032] It should be noted that in this embodiment, after heat exchange, the airflow first enters the filter box, where larger particles are removed by a coarse filter; then it passes through a medium-efficiency filter to further remove medium-sized particles; next, it passes through a high-efficiency filter to remove even smaller particles; finally, the airflow passes through an activated carbon filter to adsorb and remove harmful gases, odors, etc. from the airflow. By combining different types of filters, it is possible to effectively remove solid particles, chemicals, and odors from the gas, ensuring that the exhaust gas is clean.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving ceramic kiln, characterized in that: include: A furnace body (2) with an internal heating wire (4); The furnace bottom (5) is slidably placed inside the furnace body (2), and a moving wheel (6) is installed at the bottom of one end of the furnace bottom (5); A heat exchange and purification assembly is placed on top of the furnace body (2). The heat exchange and purification assembly includes an exhaust pipe (9) inserted into the furnace body (2). A heat exchange box (8) is installed on top of the exhaust pipe (9). A baffle plate (14) is slidably arranged inside the heat exchange box (8) to adjust the size of the opening at the top of the exhaust pipe (9) while recovering waste heat. A heat exchange tube (11) is slidably connected inside the baffle plate (14) to recover waste heat from the air discharged from the exhaust pipe (9). A filter section for filtering air is connected to the top of the heat exchange box (8).

2. The energy-saving ceramic kiln according to claim 1, characterized in that: The furnace body (2) is rotatably connected to a furnace door (3) at one end, and a U-shaped frame is fixed to one end of the furnace door (3). A threaded rod that cooperates with the U-shaped frame is installed at the end of the furnace body (2).

3. The energy-saving ceramic kiln according to claim 1, characterized in that: An outer support (1) is fixedly connected to the outside of the furnace body (2), and a bottom track (7) that cooperates with the moving wheels (6) is fixedly connected to the bottom of the outer support (1).

4. The energy-saving ceramic kiln according to claim 1, characterized in that: An electric push rod (15) is fixedly connected to one end of the heat exchange box (8), and the output end of the electric push rod (15) is fixedly connected to the baffle plate (14).

5. An energy-saving ceramic kiln according to claim 1, characterized in that: The top of the heat exchange tube (11) is rectangular and the bottom is conical. The top of the rectangular structure is fixed with fins (13) and the side is provided with heat exchange grooves. The heat exchange box (8) is provided with a drain hole (12) inside. The end of the drain hole (12) is connected by a water pipe (10) to guide water to flow from the middle of different heat exchange tubes (11).

6. The energy-saving ceramic kiln according to claim 1, characterized in that: The filtration section includes a filter box (17), and an exhaust port (16) is provided at the top end of the heat exchange box (8), and the exhaust port (16) is connected to the filter box (17).

7. An energy-saving ceramic kiln according to claim 6, characterized in that: The filter box (17) is fitted with a filter element limiting frame (18), and the filter element limiting frame (18) is provided with a coarse filter, a medium-efficiency filter, a high-efficiency filter and an activated carbon filter in sequence along the air outlet direction.

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