Energy-saving type tunnel kiln waste heat recovery device of refractory brick

Abstract

The utility model discloses an energy -saving refractory brick tunnel kiln waste heat recovery device, concretely relates to fired brick processing equipment technical field, including tunnel kiln main part, tunnel kiln main part one side fixedly connected with two fixed frame no.

Description

Technical Field

[0001] This utility model relates to the technical field of sintered brick processing equipment, and more specifically, to an energy-saving waste heat recovery device for refractory brick tunnel kilns. Background Technology

[0002] A tunnel kiln is a kiln similar to a tunnel, constructed from refractory, insulation, and building materials and containing kiln cars and other transport vehicles. It is a modern, continuous firing thermal equipment widely used for firing brick blanks and ceramic products.

[0003] However, in actual use, the contact area between the flue gas and the back of the heat exchanger is not complete during the recovery of flue gas, which leads to a decrease in the utilization rate of heat in the flue gas and affects the efficiency of waste heat recovery. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides an energy-saving waste heat recovery device for refractory brick tunnel kilns to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An energy-saving waste heat recovery device for a refractory brick tunnel kiln includes a tunnel kiln body. Two fixed supports (first type) are fixedly connected to one side of the tunnel kiln body, and two fixed supports (second type) are fixedly connected to the top of the tunnel kiln body. A waste heat recovery mechanism is installed on the top of the tunnel kiln body. The waste heat recovery mechanism includes two outer shells. The bottom of each outer shell is fixedly connected to the top of the tunnel kiln body. A bottom is fixedly connected to the inner side of each outer shell. Multiple collection cylinders are fixedly connected to the inner side of the bottom. A positioning frame is fixedly connected to the inner side of each outer shell. Multiple water storage cylinders are fixedly connected to the inner side of the positioning frame. Two outer plates are connected to the outer sides of each water storage cylinder. A water inlet pipe (first type) is fixedly connected to the bottom of each water inlet pipe (first type). A water inlet pipe (second type) is fixedly connected to the top of each water inlet pipe (first type). A second water inlet pipe extends through the inner side of the outer shell and reaches the outer side of the outer shell. One end of the second water inlet pipe is fixedly connected to a main water inlet pipe. A first water outlet pipe is fixedly connected to the top of the water storage tank. The top of the first water outlet pipe is connected to a second water outlet pipe. One end of the second water outlet pipe is fixedly connected to a main water outlet pipe. An electrostatic precipitator is slidably connected to the inner side of the outer shell. A first fan is fixedly connected to the top of the tunnel kiln body. The output end of the first fan is connected to a first air duct. The bottom of the first air duct is connected to the top of the outer shell. One end of the first air duct is fixedly connected to a second air duct. A servo motor is fixedly connected to the outer side of the second air duct. A baffle is fixedly connected to the output end of the servo motor. The outer side of the baffle is rotatably connected to the inner side of the second air duct. A combustion-supporting mechanism is provided on the outer side of the tunnel kiln body.

[0007] By adopting the above technical solution, multiple water storage tanks and outer plates are used to increase the contact area between the flue gas and the water, so that the flue gas can better heat the water, and an electrostatic precipitator is used to adsorb and remove harmful particles in the flue gas, so that the waste heat in the high-temperature flue gas can be converted into usable heat energy.

[0008] As a further description of the above technical solution: the combustion-supporting mechanism includes an oxygen tank, the outer side of which is snapped into the inner side of a fixing frame, a second blower is fixedly connected to the top of the oxygen tank, and both the output and input ends of the second blower are connected to gas supply pipes, one end of which extends into the interior of the oxygen tank, the outer side of which is fixedly connected to the inner side of the fixing frame, and the other end of which is fixedly connected to a diversion pipe, with two nozzles fixedly connected to the bottom of the diversion pipe.

[0009] By adopting the above technical solution, the servo motor drives the deflection of the baffle, allowing the flue gas to be either discharged outwards or fed with oxygen through the second fan and the gas supply pipe, so that the flue gas and oxygen can enter the interior of the tunnel kiln body to assist combustion and improve the combustion efficiency of the fuel inside the tunnel kiln body.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. By setting up a waste heat recovery mechanism, compared with the existing technology, the flue gas can be fully contacted by multiple centralized cylinders through the gathering and guiding of multiple cylinders. Multiple outer plates are used to increase the contact surface between the water storage cylinders and outer plates and the flue gas. At the same time, the air flow inside the air duct is used to siphon the flue gas inside the tunnel kiln body, so that the flue gas can continuously and stably heat the cold water, and the waste heat inside the tunnel kiln body can be fully utilized.

[0012] 2. By setting up a combustion-supporting mechanism, compared with the existing technology, oxygen is dispersed and sprayed out using a diversion pipe and nozzle, so that oxygen can be fully mixed with flue gas. This allows unburned fuel in the flue gas to mix with oxygen and support combustion inside the tunnel kiln body, making the fuel combustion inside the tunnel kiln body more complete. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0015] Figure 3 This is a partial schematic diagram of the connection between the outer shell and the air duct of this utility model.

[0016] Figure 4 This is a partial schematic diagram of the connection between the positioning frame and the water storage tank of this utility model.

[0017] Figure 5 This is a partial schematic diagram of the connection between the air duct and the servo motor of this utility model.

[0018] Figure 6 This is a partial schematic diagram of the connection between the gas supply pipe and the diversion pipe of this utility model.

[0019] The attached diagram is labeled as follows: 1. Main body of the tunnel kiln; 2. Fixing frame one; 3. Fixing frame two; 4. Outer shell; 5. Bottom; 6. Concentrated cylinder; 7. Positioning frame; 8. Water storage tank; 9. Outer plate; 10. Water inlet pipe one; 11. Water inlet pipe two; 12. Main water inlet pipe; 13. Water outlet pipe one; 14. Water outlet pipe two; 15. Main water outlet pipe; 16. Electrostatic precipitator; 17. Fan one; 18. Air duct one; 19. Air duct two; 20. Servo motor; 21. Baffle; 22. Oxygen tank; 23. Fan two; 24. Gas transmission pipe; 25. Diverter pipe; 26. Nozzle. Detailed Implementation

[0020] 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.

[0021] The embodiments disclosed in this application are as follows: Figure 1-6The energy-saving waste heat recovery device for a refractory brick tunnel kiln shown includes a tunnel kiln body 1. Two fixed brackets 1-2 are fixedly connected to one side of the tunnel kiln body 1, and two fixed brackets 2-3 are fixedly connected to the top of the tunnel kiln body 1. A waste heat recovery mechanism is installed on the top of the tunnel kiln body 1. The waste heat recovery mechanism includes two outer shells 4. The bottom of the outer shells 4 is fixedly connected to the top of the tunnel kiln body 1. A bottom 5 is fixedly connected to the inner side of the outer shells 4. Multiple concentrators 6 are fixedly connected to the inner side of the bottom 5. The multiple concentrators 6 allow the flue gas to be concentrated and guided to a certain extent. A positioning bracket 7 is fixedly connected to the inner side of the outer shells 4. Multiple water storage tanks 8 are fixedly connected to the inner side of the positioning brackets 7. Two outer plates 9 are connected to the outer side of the water storage tanks 8. A water inlet pipe 1-10 is fixedly connected to the bottom of the water storage tanks 8. A water inlet pipe 2-10 is fixedly connected to the bottom of the water inlet pipe 1-10. 11. The top of the water inlet pipe 10 is connected to the water inlet pipe 2 11. The outer side of the water inlet pipe 2 11 penetrates the inner side of the outer shell 4 and extends to the outer side of the outer shell 4. One end of the water inlet pipe 2 11 is fixedly connected to the main water inlet pipe 12. The top of the water storage tank 8 is fixedly connected to the water outlet pipe 13. The top of the water outlet pipe 13 is connected to the water outlet pipe 2 14. One end of the water outlet pipe 2 14 is fixedly connected to the main water outlet pipe 15. The inner side of the outer shell 4 is slidably connected to the electrostatic precipitator 16. The top of the tunnel kiln body 1 is fixedly connected to the fan 17. The output end of the fan 17 is connected to the air duct 18. The main water inlet pipe 12, the water inlet pipe 2 11 and the water inlet pipe 10 are used to input external cold water into the interior of the water storage tank 8 and the outer plate 9. The heated water inside the water storage tank 8 and the outer plate 9 is output using the water outlet pipe 13, the water outlet pipe 2 14 and the main water outlet pipe 15.

[0022] The bottom of duct 18 is connected to the top of the outer shell 4. One end of duct 18 is fixedly connected to duct 29. A servo motor 20 is fixedly connected to the outside of duct 29. A baffle 21 is fixedly connected to the output end of the servo motor 20. The outside of the baffle 21 is rotatably connected to the inside of duct 29. A combustion-supporting mechanism is set on the outside of the tunnel kiln body 1. The servo motor 20 drives the baffle 21 to guide the flue gas entering the inside of duct 29 from duct 18, so that the flue gas can be selectively discharged outward or input into the tunnel kiln body 1.

[0023] Reference Figure 1 and Figure 6As shown, the combustion-supporting mechanism includes an oxygen tank 22. The outer side of the oxygen tank 22 is snapped into the inner side of the fixing frame 2. A blower 23 is fixedly connected to the top of the oxygen tank 22. Both the output and input ends of the blower 23 are connected to gas supply pipes 24. One end of the gas supply pipe 24 extends into the interior of the oxygen tank 22. The outer side of the gas supply pipe 24 is fixedly connected to the inner side of the fixing frame 3. The other end of the gas supply pipe 24 is fixedly connected to a diversion pipe 25. Two nozzles 26 are fixedly connected to the bottom of the diversion pipe 25. The blower 23 and the gas supply pipe 24 are used to supply oxygen to the interior of the oxygen tank 22, and the diversion pipe 25 and the nozzles 26 are used to disperse and spray the oxygen, so that the oxygen can be better mixed with the flue gas, thereby supporting combustion inside the tunnel kiln body 1.

[0024] The working principle of this utility model is as follows: When the refractory bricks are fired in the tunnel kiln body 1, one end of the main water inlet pipe 12 is connected to the external water supply pipe, and one end of the main water outlet pipe 15 is connected to the external hot water storage device. Cold water enters the water storage tank 8 and the outer plate 9 sequentially through the main water inlet pipe 12, the second water inlet pipe 11, and the first water inlet pipe 10, gradually filling the water storage tank 8 to the top. The blower 17 blows air into the inside of the air duct 18. As the air flows inside the air duct 18, it creates a certain siphon effect on the top of the two outer shells 4, causing the tunnel kiln body 1 to... The flue gas generated by the internal combustion enters through multiple concentrators 6 at the bottom of the two outer shells 4. The flue gas is concentrated by the multiple concentrators 6, which allows the flue gas to contact the outside of multiple water storage tanks 8 and the outer plate 9 and heat the water inside the water storage tanks 8 and the outer plate 9. The heated water is then output to the external hot water storage device through the corresponding water outlet pipe 13, water outlet pipe 2 14 and the main water outlet pipe 15. After heat exchange, the flue gas passes through the corresponding electrostatic precipitator 16 to adsorb and remove harmful particles in the flue gas. Then the flue gas enters the interior of the air duct 18 through the top of the outer shell 4.

[0025] The servo motor 20 drives the baffle 21 to rotate inside the second air duct 19, so that the baffle 21 can guide the air and flue gas transported by the first air duct 18, so that the air and flue gas can be discharged through the top of the second air duct 19 or re-enter the interior of the tunnel kiln body 1 through the bottom of the second air duct 19. When the flue gas and air enter the bottom of the second air duct 19 through the baffle 21, the second blower 23 transports oxygen from the oxygen tank 22, so that the oxygen enters the interior of the second air duct 19 through the gas supply pipe 24 and the diversion pipe 25, and is dispersed and sprayed out through the two nozzles 26, so that the oxygen mixes with the flowing flue gas and air, and is then transported to the interior of the tunnel kiln body 1 through the bottom of the second air duct 19 to assist combustion inside the tunnel kiln body 1 and improve the efficiency of fuel combustion.

[0026] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving waste heat recovery device for a refractory brick tunnel kiln, comprising a tunnel kiln body (1), characterized in that: Two fixed frames (2) are fixedly connected to one side of the tunnel kiln body (1), and two fixed frames (3) are fixedly connected to the top of the tunnel kiln body (1). A waste heat recovery mechanism is provided on the top of the tunnel kiln body (1). The waste heat recovery mechanism includes two outer shells (4). The bottom of the outer shell (4) is fixedly connected to the top of the tunnel kiln body (1). A bottom (5) is fixedly connected to the inside of the outer shell (4). Multiple central cylinders (6) are fixedly connected to the inside of the bottom (5). A positioning frame (7) is fixedly connected to the inside of the outer shell (4). Multiple water storage cylinders (8) are fixedly connected to the inside of the positioning frame (7). Two outer plates (9) are connected to the outside of the water storage cylinders (8). A water inlet pipe (10) is fixedly connected to the bottom of the water storage cylinders (8). A combustion-supporting mechanism is provided on the outside of the main body (1) of the tunnel kiln.

2. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 1, characterized in that: The bottom of the first water inlet pipe (10) is fixedly connected to the second water inlet pipe (11), the top of the first water inlet pipe (10) is connected to the second water inlet pipe (11), the outer side of the second water inlet pipe (11) penetrates the inner side of the outer shell (4) and extends to the outer side of the outer shell (4), and one end of the second water inlet pipe (11) is fixedly connected to the main water inlet pipe (12).

3. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 1, characterized in that: The top of the water storage tank (8) is fixedly connected to a water outlet pipe one (13), the top of the water outlet pipe one (13) is connected to a water outlet pipe two (14), and one end of the water outlet pipe two (14) is fixedly connected to a main water outlet pipe (15).

4. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 1, characterized in that: An electrostatic precipitator (16) is slidably connected to the inner side of the outer shell (4). A blower (17) is fixedly connected to the top of the tunnel kiln body (1). The output end of the blower (17) is connected to a duct (18). The bottom of the duct (18) is connected to the top of the outer shell (4). One end of the duct (18) is fixedly connected to a duct (19).

5. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 4, characterized in that: A servo motor (20) is fixedly connected to the outside of the second air duct (19), and a baffle (21) is fixedly connected to the output end of the servo motor (20). The outside of the baffle (21) is rotatably connected to the inside of the second air duct (19).

6. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 1, characterized in that: The combustion-supporting mechanism includes an oxygen tank (22), the outer side of which is snapped into the inner side of a fixing frame (2), and a blower (23) is fixedly connected to the top of the oxygen tank (22). The output and input ends of the blower (23) are both connected to gas supply pipes (24).

7. The energy-saving refractory brick tunnel kiln waste heat recovery device according to claim 6, characterized in that: One end of the gas supply pipe (24) extends into the oxygen tank (22). The outer side of the gas supply pipe (24) is fixedly connected to the inner side of the fixing frame (3). The other end of the gas supply pipe (24) is fixedly connected to a diversion pipe (25). Two nozzles (26) are fixedly connected to the bottom of the diversion pipe (25).

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