Energy-saving kiln waste heat recovery device

Abstract

The utility model relates to the technical field of kiln waste heat recovery, and discloses an energy-saving kiln waste heat recovery device, which is characterized in that a filtering mechanism is arranged at one end of a heat exchange cylinder, and an air inlet pipe in bolt connection with a kiln is fixedly mounted at one end, far away from the heat exchange cylinder, of the filtering mechanism; the filtering mechanism comprises a shell fixedly connected with one end of the heat exchange cylinder, a partition plate is fixedly installed on the inner wall of the shell, a filtering plate is slidably installed on the inner wall of the shell, a plurality of springs are fixedly installed at the upper end of the filtering plate, and the upper ends of the springs are fixedly connected with the inner wall of the shell. The drawing handle penetrates through the shell and is in sliding connection with the shell, impurities on the surface of the filter plate are vibrated off through huge reset potential energy of the spring, and due to the fact that the process is very short, the use efficiency of the kiln is prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of kiln waste heat recovery technology, and in particular to an energy-saving kiln waste heat recovery device. Background Technology

[0002] A kiln is a furnace used for firing ceramic objects, sculptures, enamelware, or metalwork. It is typically constructed of brick and stone, can be made in various sizes as needed, and can be powered by combustible gas, oil, or electricity. Kilns are essential facilities in ceramic art, providing the necessary thermal environment for firing ceramics, glass, and metalworking processes.

[0003] For example, the existing Chinese patent with publication number CN222812191U discloses a kiln waste heat recovery and utilization device. The hot flue gas discharged from the kiln can directly enter the recovery cylinder through the flue pipe for heat exchange. The flue gas after heat exchange can enter the discharge pipe and be filtered by the filter screen and activated filter in the discharge pipe, making the flue gas emission more environmentally friendly. In addition, the filter screen can be quickly disassembled in the installation frame by the cooperation of the clip and the slot.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: during the process of disassembling, cleaning and reinstalling the filter screen, the kiln needs to be stopped for a corresponding period of time, which affects the efficiency of the kiln. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that the kiln needs to stop running for a certain period of time during the cleaning process of the filter screen, which affects the efficiency of the kiln. To this end, we propose an energy-saving kiln waste heat recovery device.

[0006] To achieve the above objectives, this application adopts the following technical solution: an energy-saving kiln waste heat recovery device, including a heat exchange cylinder, a filter mechanism is provided at one end of the heat exchange cylinder, and an air inlet pipe that is bolted to the kiln is fixedly installed at the end of the filter mechanism away from the heat exchange cylinder.

[0007] The filtration mechanism includes an outer shell fixedly connected to one end of the heat exchange cylinder. A partition is fixedly installed on the inner wall of the outer shell, and a filter plate is slidably installed on the inner wall of the outer shell. Multiple springs are fixedly installed on the upper end of the filter plate, and the upper ends of the springs are fixedly connected to the inner wall of the outer shell. A pull handle is fixedly installed in the middle of the upper end of the filter plate, and the pull handle passes through the outer shell and is slidably connected. In the initial state, the lower end face of the filter plate is pushed to abut against the partition by the compression and restoring force of the spring, so that the flue gas can only pass through the filter plate and enter the heat exchange cylinder. The filter plate then blocks impurities in the flue gas on one side of its surface. After a period of time, impurities will accumulate on one side of the filter plate. At this time, the kiln is stopped, and the operator pulls the handle to drive the filter plate to compress the spring. The more it is compressed, the greater the restoring potential energy of the spring. Then the operator releases the pull handle, and under the huge restoring potential energy of the spring, the filter plate is pushed to collide with the partition, thereby generating vibration. This process is repeated many times to shake off the impurities on the surface of the filter plate. Because this process is very short, it avoids affecting the efficiency of the kiln.

[0008] Preferably, a cover plate is installed on one side of the housing hinge. When a large amount of impurities accumulate inside the housing, they can be cleaned out by opening the cover plate, which facilitates subsequent centralized processing.

[0009] Preferably, the heat exchange cylinder is equipped with a heat exchange tube assembly, which includes a conical spiral tube. A water inlet pipe is fixedly installed at one end of the conical spiral tube, and a drain pipe is fixedly installed at the other end. Both the water inlet pipe and the drain pipe pass through the heat exchange cylinder and are fixedly connected. During use, the water inlet pipe and the drain pipe can be bolted to the external pipe. The flue gas comes into contact with the outer wall of the conical spiral tube, and the internal water flows to exchange heat, which achieves the effect of energy saving. Moreover, since the conical spiral tube is conical in shape, no obstruction is formed between the spiral tubes, thereby greatly improving the heat exchange efficiency.

[0010] Preferably, baffles are installed in a cross arrangement on the inner wall of the heat exchange tube assembly, which can effectively reduce the flow velocity of the water, thereby prolonging the residence time of the water in the conical spiral tube and thus improving the heat exchange effect.

[0011] Preferably, the heat exchange cylinder is equipped with a flow guide, which includes two conical shrouds, a first conical shroud and a second conical shroud, arranged symmetrically. The diameter of the second conical shroud is larger than that of the first conical shroud. A connecting rod is fixedly installed between the first and second conical shrouds. A support rod is fixedly installed on the outer wall of the first conical shroud and fixedly connected to the inner wall of the outer shell. When the flue gas enters the heat exchange cylinder from the filtration mechanism, it will enter the interior of the second conical shroud along the surface of the first conical shroud, and then re-enter the heat exchange cylinder from the interior of the second conical shroud. This avoids the flue gas flow rate being too fast, which would cause some heat to be discharged without heat exchange, resulting in energy waste.

[0012] Preferably, an exhaust pipe is fixedly installed at the other end of the heat exchange cylinder, and the flue gas that has been filtered and heat-exchanged can be discharged directly from the exhaust pipe.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, in the initial state, the lower end face of the filter plate is pushed to abut against the partition plate by the compression and restoring force of the spring, so that the flue gas can only pass through the filter plate and enter the heat exchange cylinder. The filter plate then blocks impurities in the flue gas on one side of its surface. After a period of time, impurities will accumulate on one side of the filter plate. At this time, the kiln is stopped, and the operator pulls the handle to compress the spring by pulling the filter plate. The more it is compressed, the greater the restoring potential energy of the spring. Then the operator releases the handle, and under the huge restoring potential energy of the spring, the filter plate is pushed to collide with the partition plate, thereby generating vibration. This process is repeated many times to shake off the impurities on the surface of the filter plate. Because this process is very short, it avoids affecting the efficiency of the kiln. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the filter mechanism structure of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the heat exchanger tube assembly structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the flow guide structure of this utility model.

[0021] Legend: 1. Heat exchanger cylinder; 11. Flow guide; 111. Conical shroud one; 112. Connecting rod; 113. Conical shroud two; 114. Support rod; 2. Filtration mechanism; 21. Outer shell; 22. Partition plate; 23. Cover plate; 24. Filter plate; 25. Pull handle; 26. Spring; 3. Air inlet pipe; 4. Exhaust pipe; 5. Heat exchanger tube assembly; 51. Conical spiral tube; 52. Water inlet pipe; 53. Drain pipe; 54. Baffle plate. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Reference Figure 1-3 As shown, this utility model provides a technical solution: an energy-saving kiln waste heat recovery device, including a heat exchange cylinder 1, a filter mechanism 2 is provided at one end of the heat exchange cylinder 1, and an air inlet pipe 3 that is bolted to the kiln is fixedly installed at the end of the filter mechanism 2 away from the heat exchange cylinder 1.

[0024] The filtration mechanism 2 includes a housing 21 fixedly connected to one end of the heat exchange cylinder 1. A partition 22 is fixedly installed on the inner wall of the housing 21, and a filter plate 24 is slidably installed on the inner wall of the housing 21. A plurality of springs 26 are fixedly installed on the upper end of the filter plate 24, and the upper ends of the springs 26 are fixedly connected to the inner wall of the housing 21. A pull handle 25 is fixedly installed in the middle of the upper end of the filter plate 24. The pull handle 25 passes through the housing 21 and is slidably connected. In the initial state, by utilizing the compression and restoring force of the springs 26, the lower end face of the filter plate 24 is pushed to abut against the partition 22, so that the flue gas can only pass through the filter plate 24 and enter the heat exchange cylinder. Within 1, the filter plate 24 blocks impurities in the flue gas on one side of its surface. After a period of time, impurities will accumulate on one side of the filter plate 24. At this time, the kiln is stopped, and the operator pulls the handle 25 to compress the filter plate 24 against the spring 26. The more it is compressed, the greater the restoring potential energy of the spring 26 becomes. Then the operator releases the handle 25, and under the huge restoring potential energy of the spring 26, the filter plate 24 is pushed to collide with the partition plate 22, thereby generating vibration. This process is repeated many times to shake off the impurities on the surface of the filter plate 24. Since this process is very short, it avoids affecting the efficiency of the kiln.

[0025] Reference Figure 3 As shown in this embodiment: a cover plate 23 is installed on one side of the outer shell 21 via a hinge. When a large amount of impurities accumulate inside the outer shell 21, they can be cleaned out by opening the cover plate 23, which facilitates subsequent centralized processing.

[0026] Reference Figure 1-2 , Figure 4As shown in this embodiment: a heat exchange tube assembly 5 is provided inside the heat exchange cylinder 1. The heat exchange tube assembly 5 includes a conical spiral tube 51. A water inlet pipe 52 is fixedly installed at one end of the conical spiral tube 51, and a drain pipe 53 is fixedly installed at the other end of the conical spiral tube 51. Both the water inlet pipe 52 and the drain pipe 53 pass through the heat exchange cylinder 1 and are fixedly connected. During use, the water inlet pipe 52 and the drain pipe 53 can be bolted to the external pipe. The flue gas comes into contact with the outer wall of the conical spiral tube 51, and the internal water flows to exchange heat, which achieves the effect of energy saving. Moreover, since the conical spiral tube 51 is conical in shape, no obstruction is formed between the spiral tubes, thereby greatly improving the heat exchange efficiency.

[0027] Reference Figure 4 As shown in this embodiment, baffles 54 are installed in a cross arrangement on the inner wall of the heat exchange tube group 5, which can effectively reduce the flow rate of water, thereby prolonging the residence time of water in the conical spiral tube 51, and thus improving the heat exchange effect.

[0028] Reference Figure 2 , Figure 5 As shown in this embodiment: a flow guide 11 is provided inside the heat exchange cylinder 1. The flow guide 11 includes a symmetrically arranged conical shroud 111 and a conical shroud 113. The diameter of the conical shroud 113 is larger than the diameter of the conical shroud 111. A connecting rod 112 is fixedly installed between the conical shroud 111 and the conical shroud 113. A support rod 114 fixedly connected to the inner wall of the outer shell 21 is fixedly installed on the outer wall of the conical shroud 111. When the flue gas enters the heat exchange cylinder 1 from the filter mechanism 2, it will enter the interior of the conical shroud 113 along the surface of the conical shroud 111, and then re-enter the heat exchange cylinder 1 from the interior of the conical shroud 113. This avoids the flue gas flow rate being too fast, which would cause some heat to be discharged without heat exchange, resulting in energy waste.

[0029] Reference Figure 1-2 As shown in this embodiment: an exhaust pipe 4 is fixedly installed at the other end of the heat exchange cylinder 1, and the flue gas that has been filtered and heat exchanged can be discharged directly from the exhaust pipe 4.

[0030] Working principle: In the initial state, the lower end face of the filter plate 24 is pushed to abut against the partition plate 22 by the compression and restoring force of the spring 26, so that the flue gas can only pass through the filter plate 24 and enter the heat exchange cylinder 1. The filter plate 24 then blocks impurities in the flue gas on one side surface. After a period of time, impurities will accumulate on one side surface of the filter plate 24. At this time, the kiln is stopped, and the operator pulls the handle 25 to drive the filter plate 24 to compress the spring 26. The more it is compressed, the greater the restoring potential energy of the spring 26 becomes. Then the operator releases the handle 25, and under the huge restoring potential energy of the spring 26, the filter plate 24 is pushed to collide with the partition plate 22, thereby generating vibration. This process is repeated many times to shake off the impurities on the surface of the filter plate 24. Since this process is very short, it avoids affecting the efficiency of the kiln.

[0031] The scope of the utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of the utility model, and all such modifications and variations should fall within the protection scope of the utility model.

Claims

1. An energy saving kiln waste heat recovery device, characterized by, It includes a heat exchange cylinder, one end of which is provided with a filter mechanism, and the end of the filter mechanism away from the heat exchange cylinder is fixedly installed with an air inlet pipe that is bolted to the kiln. The filtration mechanism includes a housing fixedly connected to one end of the heat exchange cylinder. A partition is fixedly installed on the inner wall of the housing. A filter plate is slidably installed on the inner wall of the housing. A plurality of springs are fixedly installed on the upper end of the filter plate. The upper ends of the springs are fixedly connected to the inner wall of the housing. A pull handle is fixedly installed in the middle of the upper end of the filter plate. The pull handle passes through the housing and is slidably connected.

2. The energy saving kiln waste heat recovery device according to claim 1, characterized in that: A cover plate is hinged to one side of the housing.

3. The energy saving kiln waste heat recovery device according to claim 1, characterized in that: The heat exchange cylinder is equipped with a heat exchange tube assembly, which includes a conical spiral tube. A water inlet pipe is fixedly installed at one end of the conical spiral tube, and a drain pipe is fixedly installed at the other end of the conical spiral tube. Both the water inlet pipe and the drain pipe pass through the heat exchange cylinder and are fixedly connected.

4. The energy saving kiln waste heat recovery device according to claim 3, characterized in that: The inner wall of the heat exchange tube assembly is equipped with baffles arranged in a cross pattern.

5. The energy efficient kiln waste heat recovery device as claimed in claim 1, wherein: The heat exchange cylinder is equipped with a flow guide, which includes a symmetrically arranged conical shroud 1 and a conical shroud 2. The diameter of the conical shroud 2 is larger than the diameter of the conical shroud 1. A connecting rod is fixedly installed between the conical shroud 1 and the conical shroud 2. A support rod that is fixedly connected to the inner wall of the outer shell is fixedly installed on the outer wall of the conical shroud 1.

6. An energy saving kiln waste heat recovery device as claimed in claim 1, wherein: An exhaust pipe is fixedly installed at the other end of the heat exchange cylinder.

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