Energy-saving hot air and water brick boiling device for kiln

Abstract

The utility model discloses an energy-saving kiln hot air and water brick boiling device which comprises a heating water tank, a heating cavity is formed in the heating water tank, and a heat preservation cover plate covers the top of the heating water tank; the heating piece comprises a heating pipe and a first heat transfer piece which are connected to the bottom of the heating containing cavity, and a second heat transfer piece connected to the side wall of the heating containing cavity, and the heating water tank is provided with a flue gas inlet pipe connected with waste heat of the kiln; a first heat transfer piece and a second heat transfer piece are arranged at the bottom and on the side wall of a heating water tank to heat fluid, the first heat transfer piece and the second heat transfer piece comprise a first smoke heat transfer pipe and a second smoke heat transfer pipe which are communicated with waste heat smoke of a kiln, and the circumferential faces of the first heat transfer piece and the second heat transfer piece make direct contact with the fluid in the heating water tank. In the conveying process of the waste heat flue gas of the kiln through the first flue gas heat transfer pipe and the second flue gas heat transfer pipe, heat in the flue gas can be transferred into fluid in a heat transfer mode so as to heat the fluid.

Description

Technical Field

[0001] This utility model belongs to the field of ceramic brick testing technology, specifically relating to an energy-saving kiln hot air water boiling brick device. Background Technology

[0002] When testing ceramic tiles, they are boiled in a heated water tank for 3-4 hours. The quality and performance of the ceramic tiles are evaluated by observing changes in water absorption rate and deformation. Traditional boiling tests use an energy-heated water tank to test ceramic tiles. Electric heating is energy-intensive, and the exhaust gas from the kiln is directly emitted. The heat energy of the exhaust gas cannot be used to boil the tiles. The direct emission of high-temperature exhaust gas leads to the waste of heat energy and pollution to the environment. Utility Model Content

[0003] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide an energy-saving kiln hot air water brick-boiling device.

[0004] The technical solution adopted in this utility model includes:

[0005] The heating water tank has a heating cavity inside and is covered with an insulated cover plate on top.

[0006] The heating element includes a heating pipe and a first heat transfer element connected to the bottom of the heating cavity, and a second heat transfer element connected to the side wall of the heating cavity. The heating water tank is provided with a flue gas inlet pipe for connecting to the waste heat of the kiln. The first heat transfer element and the second heat transfer element are both connected to the flue gas inlet pipe. The other end of the first heat transfer element and the second heat transfer element are connected to the flue gas outlet provided on the heating water tank.

[0007] The lifting bracket is used to support materials in layers so that they can be lifted into the heating chamber for boiling tests.

[0008] As a preferred embodiment of the present invention, the first heat transfer element includes a first flue gas heat transfer pipe that is curved along the length direction of the bottom of the heating cavity. The bottom of the heating cavity is provided with an installation groove for installing the first flue gas heat transfer pipe. A support block is fixedly provided in the installation groove, and an installation space for installing the heating pipe is formed in the support block.

[0009] As a preferred embodiment of this invention, the two ends of the first flue gas heat transfer tube are respectively connected to the flue gas inlet pipe and the flue gas outlet.

[0010] As a preferred embodiment of this invention, the height of the heating tube and the first flue gas heat transfer tube on the support block is lower than the upper end face of the support block.

[0011] As a preferred embodiment of the present invention, the second heat transfer element includes a second flue gas heat transfer tube that is continuously spirally distributed along the height direction of the side wall of the heating cavity. A flue gas inlet branch pipe is connected to the flue gas inlet pipe, which communicates with one end of the second flue gas heat transfer tube. The other end of the second flue gas heat transfer tube is connected to the flue gas outlet.

[0012] As a preferred embodiment of this invention, a flow valve is provided on the flue gas inlet manifold, and a temperature sensor is provided inside the heating cavity.

[0013] As a preferred embodiment of this invention, the heating water tank is provided with a water inlet.

[0014] As a preferred embodiment of this utility model, the lifting support includes a frame, multiple horizontal bars evenly distributed along the frame, and hooks fixedly connected to the top of the frame. The frame forms multiple evenly spaced layers through the horizontal bars, and the hooks are connected to the overhead crane via telescopic connection.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model is an energy-saving kiln hot air water brick-boiling device. It heats the fluid by installing a power-operated heating pipe at the bottom of the heating water tank. Simultaneously, a first heat transfer element and a second heat transfer element are installed at the bottom and side walls of the heating water tank to further heat the fluid. The first and second heat transfer elements include a first flue gas heat transfer pipe and a second flue gas heat transfer pipe connected to the kiln's waste heat flue gas, with their circumferences directly contacting the fluid inside the heating water tank. During the transport of the kiln's waste heat flue gas, the first and second flue gas heat transfer pipes can transfer heat from the flue gas to the fluid through heat transfer, thus heating the fluid and enabling the reuse of the kiln's waste heat flue gas. This also reduces the temperature of the emitted kiln flue gas, avoiding high-temperature impacts on the environment and minimizing energy loss from the heating pipes. The distribution of the first and second flue gas heat transfer pipes extends the flow time of the waste heat flue gas within the heating water tank, thereby improving heat exchange efficiency. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heating water tank of this utility model;

[0021] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the diagram;

[0022] Figure 5 This is a structural schematic diagram of the lifting bracket of this utility model.

[0023] In the diagram: 1. Heating water tank; 2. Heating element; 3. Supporting and lifting bracket; 11. Water inlet; 12. Insulation cover plate; 13. Mounting groove; 14. Support block; 15. Installation space; 20. Heating cavity; 21. Heating tube; 22. First heat transfer element; 23. Second heat transfer element; 31. Frame; 32. Crossbar; 33. Hook; 221. Flue gas inlet pipe; 222. Flue gas outlet; 223. First flue gas heat transfer pipe; 231. Flue gas inlet branch pipe; 232. Flow valve; 233. Second flue gas heat transfer pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] The following is combined with Figure 1-3 This invention describes a specific embodiment of an energy-saving kiln hot air water brick-boiling device, comprising:

[0027] The heating water tank 1 has a heating cavity 20 inside and an insulation cover 12 on the top. The insulation cover 12 can improve the insulation of the fluid water in the heating water tank 1.

[0028] Heating element 2 includes a heating pipe 21 connected to the bottom of the heating cavity 20, a first heat transfer element 22, and a second heat transfer element 23 connected to the side wall of the heating cavity 20. A flue gas inlet pipe 221 connected to the waste heat of the kiln is provided on the heating water tank 1. Both the first heat transfer element 22 and the second heat transfer element 23 are connected to the flue gas inlet pipe 221. The other ends of the first heat transfer element 22 and the second heat transfer element 23 are connected to the flue gas outlet 222 on the heating water tank 1. When testing ceramic tiles, they are placed in the heating water tank 1 and boiled in water for 3-4 hours. The quality and performance of the ceramic tiles are evaluated by observing changes in their water absorption rate and deformation. During heating, the first heating method is electric heating of heating tube 21, and the second heating method is the reuse of heat energy in the kiln waste flue gas by the first heat transfer element 22 and the second heat transfer element 23. In the first heat transfer element 22 and the second heat transfer element 23, the kiln waste flue gas is transported by the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 respectively, and the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 pass through the fluid water loaded in the heating water tank 1. The first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 transport flue gas to raise their own temperature. After the temperature rises, the heat can be transferred to the fluid through heat transfer, realizing the reuse of heat energy of kiln waste gas, thereby reducing the power consumption of heating tube 21 in heating fluid water.

[0029] The lifting bracket 3 is used to carry materials in layers so that they can be lifted into the heating chamber 20 for boiling tests. The ceramic bricks are placed on the lifting bracket 3 at intervals and lifted by the lifting device to achieve high-efficiency transfer and cooking of the ceramic bricks.

[0030] Please refer to Figure 3 As shown, the first heat transfer element 22 includes a first flue gas heat transfer pipe 223 that is curved along the length of the bottom of the heating cavity 20. The bottom of the heating cavity 20 is provided with an installation groove 13 for installing the first flue gas heat transfer pipe 223. A support block 14 is fixedly provided in the installation groove 13. An installation space 15 for installing the heating pipe 21 is formed in the support block 14. The first flue gas heat transfer pipe 223 is used to transport the waste flue gas from the kiln. The first flue gas heat transfer pipe 223 is curved along the length of the lower end face of the heating cavity 20 to increase the distribution length of the first flue gas heat transfer pipe 223 at the bottom of the heating cavity 20 and improve the heat transfer efficiency of the first flue gas heat transfer pipe 223 to the fluid. It should be noted that the flue gas inlet pipe 221 is wrapped with an insulation layer at the connection end with the kiln to avoid heat loss of the waste heat flue gas during the transmission to the heating water tank 1.

[0031] Please refer to Figure 1-3As shown, the two ends of the first flue gas heat transfer pipe 223 are connected to the flue gas inlet pipe 221 and the flue gas outlet 222, respectively. After participating in heat transfer in the heating water tank 1, the waste flue gas from the kiln is discharged through the flue gas outlet 222.

[0032] Please refer to Figures 3-4 As shown, the height of the heating tube 21 and the first flue gas heat transfer tube 223 on the support block 14 is lower than the upper surface of the support block 14, so that the upper surface of the support block 14 provides support for the placement of ceramic tiles and avoids cracking of the first flue gas heat transfer tube 223 and the heating tube 21 when placing ceramic tiles.

[0033] Please refer to Figure 3 As shown, the second heat transfer element 23 includes a second flue gas heat transfer pipe 233 that is continuously spirally distributed along the height direction of the side wall of the heating cavity 20. A flue gas inlet branch pipe 231 connected to one end of the second flue gas heat transfer pipe 233 is provided on the flue gas inlet pipe 221. The other end of the second flue gas heat transfer pipe 233 is connected to the flue gas outlet 222. When heating the fluid in the heating water tank 1, by setting the flue gas inlet branch pipe 231 to connect the second flue gas heat transfer pipe 233, the utilization rate of kiln waste gas in the heating water tank 1 and the heating speed of the fluid can be improved. In order to avoid damage to the second flue gas heat transfer pipe 233 when lifting ceramic bricks, the second flue gas heat transfer pipe 233 can be set inside the side wall of the heating cavity 20.

[0034] Please refer to Figure 3 As shown, a flow valve 232 is provided on the flue gas inlet pipe 231, and a temperature sensor is provided in the heating cavity 20. The temperature sensor is used to detect the temperature of the fluid in the heating water tank 1. By judging the temperature, the heating of the heating tube 21 and the flow rate of the flow valve 232 are controlled, so as to achieve energy-saving control of the heating tube 21 and improve the utilization rate of the waste heat flue gas of the kiln.

[0035] Please refer to Figure 2 As shown, the heating water tank 1 is provided with a water inlet 11, which is used to ensure that the liquid surface of the fluid in the heating water tank 1 completely covers the ceramic bricks when the ceramic bricks are continuously steamed.

[0036] Please refer to Figure 5As shown, the supporting lifting bracket 3 includes a frame 31, multiple horizontal bars 32 evenly distributed along the frame 31, and hooks 33 fixedly connected to the top of the frame 31. The frame 31 forms multiple equally spaced placement layers through the horizontal bars 32. The hooks 33 are connected to the overhead crane by telescopic connection. In this embodiment, each layer is divided into two ceramic tile placement spaces. By placing the ceramic tiles individually in each placement space, the contact area between the ceramic tile surface and the fluid is increased, thereby achieving the detection effect of ceramic tile cooking. The hooks 33 can be connected to the lifting device by telescopic connection to realize the synchronous transfer of multiple ceramic tiles to the heating water tank 1 for testing.

[0037] Working principle of this utility model:

[0038] The fired ceramic bricks are placed individually in the placement space formed by two horizontal bars 32, and connected to the lifting device using hooks 33 and ropes, so that multiple ceramic bricks are simultaneously transferred to the heating water tank 1 for boiling water steaming.

[0039] In the heating of the fluid in the heating water tank 1, on the one hand, the heating tube 21 is powered to heat the fluid. On the other hand, one end of the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 are connected to the waste heat flue gas of the kiln. The first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 are heated during the transportation of the waste heat flue gas of the kiln. Since the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 are located at the bottom of the heating cavity 20 and are in direct contact with the fluid, the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 can heat the fluid through heat transfer during the transportation of the flue gas, thereby realizing the utilization of the waste heat flue gas of the kiln.

[0040] The first flue gas heat transfer tube 223 is curved along the bottom length of the heating cavity 20, and the second flue gas heat transfer tube 233 is continuously wound along the inner wall of the circumference of the heating cavity 20. This effectively increases the distribution length of the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 in the heating water tank 1, thereby extending the time that the kiln flue gas is transported through the first flue gas heat transfer tube 223 and the second flue gas heat transfer tube 233 in the heating water tank 1, and thus improving the heat exchange efficiency of the kiln flue gas.

[0041] By installing a flow valve 232 and a flue gas inlet branch pipe 231 on the flue gas inlet pipe 221, the flow rate of flue gas in the second flue gas heat transfer pipe 233 can be controlled. This can be used for rapid heating of low-temperature fluid in the heating water tank 1, and to prevent the continuous heating of the second flue gas heat transfer pipe 233 from accelerating the evaporation rate of the fluid in the heating water tank 1.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An energy-saving kiln hot air water brick-boiling device, characterized in that, include: A heating water tank (1) has a heating cavity (20) inside and an insulated cover (12) on top; The heating element (2) includes a heating pipe (21) connected to the bottom of the heating cavity (20) and a first heat transfer element (22), and a second heat transfer element (23) connected to the side wall of the heating cavity (20). The heating water tank (1) is provided with a flue gas inlet pipe (221) for connecting the waste heat of the kiln. The first heat transfer element (22) and the second heat transfer element (23) are both connected to the flue gas inlet pipe (221). The other end of the first heat transfer element (22) and the second heat transfer element (23) are connected to the flue gas outlet (222) provided on the heating water tank (1). The lifting bracket (3) is used to carry materials in layers so as to lift them into the heating chamber (20) for boiling test.

2. The energy-saving kiln hot air water brick-boiling device according to claim 1, characterized in that: The first heat transfer element (22) includes a first flue gas heat transfer pipe (223) that is curved along the length of the bottom of the heating cavity (20). The bottom of the heating cavity (20) is provided with an installation groove (13) for installing the first flue gas heat transfer pipe (223). A support block (14) is fixedly provided in the installation groove (13). An installation space (15) for installing the heating pipe (21) is formed in the support block (14).

3. The energy-saving kiln hot air water brick-boiling device according to claim 2, characterized in that: The two ends of the first flue gas heat transfer pipe (223) are connected to the flue gas inlet pipe (221) and the flue gas outlet (222), respectively.

4. The energy-saving kiln hot air water brick-boiling device according to claim 2, characterized in that: The height of the heating tube (21) and the first flue gas heat transfer tube (223) on the support block (14) is lower than the upper end face of the support block (14).

5. The energy-saving kiln hot air water brick-boiling device according to claim 1, characterized in that: The second heat transfer element (23) includes a second flue gas heat transfer tube (233) that is continuously spirally distributed along the height of the side wall of the heating cavity (20). A flue gas inlet branch pipe (231) connected to one end of the second flue gas heat transfer tube (233) is provided on the flue gas inlet pipe (221), and the other end of the second flue gas heat transfer tube (233) is connected to the flue gas outlet (222).

6. The energy-saving kiln hot air water brick-boiling device according to claim 5, characterized in that: The flue gas inlet manifold (231) is equipped with a flow valve (232), and the heating chamber (20) is equipped with a temperature sensor.

7. The energy-saving kiln hot air water brick-boiling device according to claim 1, characterized in that: The heating water tank (1) is provided with a water inlet (11).

8. The energy-saving kiln hot air water brick-boiling device according to claim 7, characterized in that: The lifting support bracket (3) includes a frame (31), multiple horizontal bars (32) evenly distributed along the frame (31), and a hook (33) fixedly connected to the top of the frame (31). The frame (31) forms multiple layers of evenly spaced stacking through the horizontal bars (32), and the hook (33) is connected to the overhead crane by telescopic connection.

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