Efficient environment-friendly tunnel kiln waste heat recovery device

Abstract

The utility model discloses an efficient environment-friendly tunnel kiln waste heat recovery device, which belongs to the technical field of tunnel kiln waste heat recovery, and comprises a tunnel kiln body, one side of the tunnel kiln body is fixedly connected with a communicating pipe, one end of the communicating pipe is fixedly connected with a recovery box, the communicating pipe is internally and fixedly connected with a slot, and the slot is fixedly connected with the recovery box. According to the tunnel kiln waste heat recycling device, waste heat in the tunnel kiln body can be pumped into the recycling box by starting the fan, then objects in the drying box can be dried, water in the heating box can be heated, the utilization efficiency of the waste heat is improved, and the tunnel kiln waste heat recycling device has the advantages of being energy-saving and environment-friendly. And a filter screen is arranged, dust and impurities in the tunnel kiln body can be filtered out when waste heat is absorbed, the dust and the impurities are prevented from being sucked into a recycling box, then a cover plate can be opened through four sets of bolts, the filter screen is cleaned and replaced through the bolts, a fan is overhauled through the bolts, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery of tunnel kilns, in particular to an efficient and environment-friendly waste heat recovery device for tunnel kilns. Background Technique

[0002] A tunnel kiln is a kiln similar to a tunnel made of refractory materials, heat-insulating materials and building materials, and equipped with carrier tools such as kiln cars inside. It is a modern continuous firing thermal equipment and is widely used in the firing of brick blanks and ceramic products.

[0003] The existing tunnel kiln has a straight linear tunnel, so it has a good heat preservation effect during firing, and the waste heat in the tunnel lingers for a long time. After the products are fired by the waste heat, high temperature and finally cooled in the tunnel kiln, due to the lack of an effective waste heat recovery device, a large amount of waste heat is wasted, resulting in a low energy utilization rate of the tunnel kiln and a significant increase in the production cost of enterprises. Content of the Utility Model

[0004] The utility model solves the technical problems in the above background technique and provides an efficient and environment-friendly waste heat recovery device for tunnel kilns.

[0005] The technical solution provided by the utility model to solve the above technical problems is as follows:

[0006] An efficient and environment-friendly waste heat recovery device for tunnel kilns includes a tunnel kiln body. One side of the tunnel kiln body is fixedly connected with a connecting pipe. One end of the connecting pipe is fixedly connected with a recovery box. A slot is fixedly connected inside the connecting pipe. A filter screen slides inside the slot. A mounting plate is fixedly connected inside the connecting pipe. A fan is fixedly connected inside the mounting plate. An inspection opening is provided at the top of the connecting pipe. A cover plate is fixedly connected to the inspection opening through bolts. A heating box is provided inside the connecting pipe. A drying box is provided inside the connecting pipe. A water collecting box is provided inside the connecting pipe. A placing plate is fixedly connected inside the drying box.

[0007] Preferably, a water inlet pipe is fixedly connected to the top of the connecting pipe. A fixing rod is fixedly connected to the water inlet pipe. A sliding plate slides on the fixing rod. One end of the sliding plate is fixedly connected with a limiting plate. A first spring is sleeved on the fixing rod. A water inlet valve is fixedly connected to the sliding plate. One end of the water inlet valve is fixedly connected with an external water pipe. A drain valve is fixedly connected to one side of the bottom of the heating box.

[0008] Preferably, a box door is rotatably connected to one side of the drying box and the water collecting box. A fixing plate is fixedly connected to the recovery box. A sliding rod penetrates and slides through the fixing plate. One end of the sliding rod is fixedly connected with a baffle plate. The other end of the fixing plate is fixedly connected to a pulling plate. A second spring is sleeved on the sliding rod.

[0009] Preferably, a water level observation window is provided on one side of the heating box, a glass observation window is provided on the box door, a handle is fixedly connected to the box door, the shape of the handle is U-shaped, and exhaust holes are provided on the side of the drying box away from the box door.

[0010] Preferably, one end of the connecting pipe is fixedly connected to one side of the drying box, the width of the cover plate is greater than the width of the inspection opening, the filter screen and the mounting plate are located below the inspection opening, the filter screen is located on the side close to the tunnel kiln body, and the mounting plate is located on the side away from the tunnel kiln body.

[0011] Preferably, the drying box is located in the middle of the heating box and the water collecting tank, the placing plate is located in the middle of the drying box and the water collecting tank, one end of the first spring is fixedly connected to the limiting plate, the other end of the first spring is fixedly connected to the sliding plate, and four groups of fixing rods are provided and evenly distributed.

[0012] Preferably, the baffle fits against the box door, the pulling plate is located above the fixing plate, one end of the second spring is fixedly connected to the fixing plate, the other end of the second spring is fixedly connected to the baffle, and three groups of sliding rods are provided and evenly distributed.

[0013] With the above structure, the present utility model has the following advantages:

[0014] 1. By starting the fan, the waste heat in the tunnel kiln body can be pumped into the recovery box, and then the items in the drying box can be dried, and the water in the heating box can also be heated, improving the utilization efficiency of the waste heat. And a filter screen is provided to filter the dust and impurities in the tunnel kiln body when absorbing the waste heat to prevent them from being inhaled into the recovery box. Then, the cover plate can be opened by four bolts, and the filter screen can be cleaned and replaced, and the fan can be overhauled, improving the practicability of the device.

[0015] 2. By opening the water inlet valve to inject water into the heating box, the water vapor generated when the water is heated will push the sliding plate to compress the first spring, thereby discharging the water vapor to prevent excessive internal pressure, enhancing safety. And through the water level observation window, it is convenient to observe the water level in the heating box, and through the glass observation window, it is convenient to observe the drying situation of the items in the drying box. When drying in the drying box, the baffle can limit the box door to prevent it from opening, and the exhaust holes can also prevent excessive pressure in the drying box.

[0016] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of an efficient and environmentally friendly waste heat recovery device for a tunnel kiln of the present utility model;

[0019] Figure 2 is a partial structural cross-section of an efficient and environmentally friendly waste heat recovery device for a tunnel kiln of the present utility model Figure 1 ;

[0020] Figure 3 is a partial structural cross-section of an efficient and environmentally friendly waste heat recovery device for a tunnel kiln of the present utility model Figure 2 ;

[0021] Figure 4 is Figure 1 the enlarged view at position A in

[0022] Figure 5 is Figure 1 the enlarged view at position B in

[0023] As shown in the figure: 1. Tunnel kiln body; 2. Connecting pipe; 3. Recovery box; 4. Slot; 5. Filter screen; 6. Installation plate; 7. Fan; 8. Inspection port; 9. Bolt; 10. Cover plate; 11. Heating box; 12. Drying box; 13. Water collection tank; 14. Water inlet pipe; 15. Fixed rod; 16. Sliding plate; 17. Limiting plate; 18. First spring; 19. Water inlet valve; 20. External water pipe; 21. Water level observation window; 22. Drainage valve; 23. Box door; 24. Glass observation window; 25. Fixed plate; 26. Sliding rod; 27. Baffle; 28. Pulling plate; 29. Second spring; 30. Handle; 31. Exhaust hole; 32. Placing plate. Detailed implementation manners

[0024] The following will describe in detail the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0025] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0026] The following further elaborates on the present utility model in detail in combination with the full text:

[0027] Combined with the attached Figures 1 to 5 , an efficient and environmentally friendly waste heat recovery device for a tunnel kiln, comprising a tunnel kiln body 1. One side of the tunnel kiln body 1 is fixedly connected with a connecting pipe 2. One end of the connecting pipe 2 is fixedly connected with a recovery box 3. A slot 4 is fixedly connected inside the connecting pipe 2. A filter screen 5 slides inside the slot 4. A mounting plate 6 is fixedly connected inside the connecting pipe 2. A fan 7 is fixedly connected inside the mounting plate 6. An inspection opening 8 is provided at the top of the connecting pipe 2. A cover plate 10 is fixedly connected to the inspection opening 8 through bolts 9. A heating box 11 is provided inside the connecting pipe 2. A drying box 12 is provided inside the connecting pipe 2. A water collection box 13 is provided inside the connecting pipe 2. A placement plate 32 is fixedly connected inside the drying box 12. By starting the fan 7, the waste heat in the tunnel kiln body 1 can be drawn into the recovery box 3. Then, the items inside the drying box 12 can be dried, and the water inside the heating box 11 can also be heated, improving the utilization efficiency of the waste heat. And a filter screen 5 is provided to filter the dust and impurities in the tunnel kiln body 1 when absorbing the waste heat, preventing them from being sucked into the recovery box 3. Then, the cover plate 10 can be opened through four groups of bolts 9, and the filter screen 5 can be cleaned and replaced, and the fan 7 can be repaired through the bolts 9, improving the practicability of the device.

[0028] Among them, a water inlet pipe 14 is fixedly connected to the top of the connecting pipe 2. A fixing rod 15 is fixedly connected to the water inlet pipe 14. A sliding plate 16 is slidably connected to the fixing rod 15. One end of the sliding plate 16 is fixedly connected to a limiting plate 17. A first spring 18 is sleeved on the fixing rod 15. An inlet valve 19 is fixedly connected to the sliding plate 16. One end of the inlet valve 19 is fixedly connected to an external water pipe 20. A drain valve 22 is fixedly connected to one side of the bottom of the heating box 11. A box door 23 is rotatably connected to one side of the drying box 12 and the water collection tank 13. A fixing plate 25 is fixedly connected to the recycling box 3. A sliding rod 26 is slidably connected through the fixing plate 25. One end of the sliding rod 26 is fixedly connected to a baffle 27. The other end of the fixing plate 25 is fixedly connected to a pulling plate 28. A second spring 29 is sleeved on the sliding rod 26. A water level observation window 21 is provided on one side of the heating box 11. A glass observation window 24 is provided on the box door 23. A handle 30 is fixedly connected to the box door 23. The shape of the handle 30 is U-shaped. An exhaust hole 31 is provided on one side of the drying box 12 away from the box door 23. One end of the connecting pipe 2 is fixedly connected to one side of the drying box 12. The width of the cover plate 10 is greater than the width of the inspection opening 8. The filter screen 5 and the mounting plate 6 are located below the inspection opening 8. The filter screen 5 is located on the side close to the tunnel kiln body 1. The mounting plate 6 is located on the side away from the tunnel kiln body 1. The drying box 12 is located between the heating box 11 and the water collection tank 13. The placing plate 32 is located between the drying box 12 and the water collection tank 13. One end of the first spring 18 is fixedly connected to the limiting plate 17. The other end of the first spring 18 is fixedly connected to the sliding plate 16. There are four groups of fixing rods 15 and they are evenly distributed. The baffle 27 fits against the box door 23. The pulling plate 28 is located above the fixing plate 25. One end of the second spring 29 is fixedly connected to the fixing plate 25. The other end of the second spring 29 is fixedly connected to the baffle 27. There are three groups of sliding rods 26 and they are evenly distributed. By opening the inlet valve 19, water is injected into the heating box 11. When the water is heated, the generated water vapor will push the sliding plate 16 to compress the first spring 18, thereby discharging the water vapor and preventing the internal pressure from being too high, enhancing safety. And it is convenient to observe the water level in the heating box 11 through the water level observation window 21. It is convenient to observe the drying situation of the items in the drying box 12 through the glass observation window 24. When drying is carried out in the drying box 12, the baffle 27 can limit the box door 23 to prevent it from opening, and the exhaust hole 31 can also prevent the pressure in the drying box 12 from being too high.

[0029] Working principle of the utility model: When in use, open the water inlet valve 19 to add water into the heating box 11, and observe the water level inside through the water level observation window 21. Then pull the pull plate 28 to drive the sliding rod 26 to slide on the fixed plate 25 and compress the second spring 29, so that the baffle 27 no longer fits the box door 23, and hold the handle 30 to open the box door 23. Place the item to be dried on the placement plate 32, and then close the box door 23. At this time, the fan 7 can be started to discharge the waste heat in the tunnel kiln body 1 into the drying box 12 through the connecting pipe 2 to dry the item. At this time, the heat in the drying box 12 can heat the water in the heating box 11. While discharging the waste heat into the drying box 12, the filter screen 5 can filter the dust and residues in the tunnel kiln body 1. When heating the water in the heating box 11, the generated water vapor will push the sliding plate 16 to compress the first spring 18, thereby discharging the water vapor to avoid excessive internal pressure. After the water in the heating box 11 is heated, it can be discharged by opening the drain valve 22. When the item in the drying box 12 is dried, part of the hot air will be discharged from the exhaust hole 31 to prevent excessive pressure in the drying box 12, and part of the moisture will fall into the lower water collection tank 13 through the placement plate 32 for later treatment. By unscrewing the four groups of bolts 9 and removing the cover plate 10, the filter screen 5 can be taken out from the slot 4 through the maintenance port 8 for cleaning or replacement. At the same time, the fan 7 can also be overhauled and maintained.

[0030] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown throughout the text is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A high-efficiency and environmentally friendly tunnel kiln waste heat recovery device, comprising a tunnel kiln body (1), characterized in that: A connecting pipe (2) is fixedly connected to one side of the tunnel kiln body (1), a recovery box (3) is fixedly connected to one end of the connecting pipe (2), a slot (4) is fixedly connected inside the connecting pipe (2), a filter screen (5) is slidably arranged inside the slot (4), a mounting plate (6) is fixedly connected inside the connecting pipe (2), a fan (7) is fixedly connected inside the mounting plate (6), an inspection port (8) is provided at the top of the connecting pipe (2), a cover plate (10) is fixedly connected to the inspection port (8) by bolts (9), a heating box (11) is provided inside the connecting pipe (2), a drying box (12) is provided inside the connecting pipe (2), a water collecting box (13) is provided inside the connecting pipe (2), and a placement plate (32) is fixedly connected inside the drying box (12).

2. According to claim 1, a high-efficiency and environmentally friendly tunnel kiln waste heat recovery device is characterized by: The top of the connecting pipe (2) is fixedly connected to a water inlet pipe (14), a fixed rod (15) is fixedly connected to the water inlet pipe (14), a sliding plate (16) is slidably connected to the fixed rod (15), one end of the sliding plate (16) is fixedly connected to a limiting plate (17), a first spring (18) is sleeved on the fixed rod (15), a water inlet valve (19) is fixedly connected to the sliding plate (16), one end of the water inlet valve (19) is fixedly connected to an external water pipe (20), and a drain valve (22) is fixedly connected to one side of the bottom of the heating box (11).

3. The high-efficiency and environmentally friendly tunnel kiln waste heat recovery device according to claim 2 is characterized in that: The drying box (12) is rotatably connected to one side of the water collecting box (13) with a box door (23); the recovery box (3) is fixedly connected with a fixing plate (25); a sliding rod (26) is slidably connected through the fixing plate (25); one end of the sliding rod (26) is fixedly connected with a baffle (27); the other end of the fixing plate (25) is fixedly connected to a pulling plate (28); and a second spring (29) is sleeved on the sliding rod (26).

4. The high-efficiency and environmentally friendly tunnel kiln waste heat recovery device according to claim 3 is characterized by: A water level observation window (21) is provided on one side of the heating box (11), a glass observation window (24) is provided on the box door (23), a handle (30) is fixedly connected to the box door (23), and the handle (30) is in a U-shape. An exhaust hole (31) is provided on a side of the drying box (12) away from the box door (23).

5. The high-efficiency and environmentally friendly tunnel kiln waste heat recovery device according to claim 4 is characterized in that: One end of the connecting pipe (2) is fixedly connected to one side of the drying box (12); the width of the cover plate (10) is greater than the width of the inspection opening (8); the filter screen (5) and the mounting plate (6) are located below the inspection opening (8); the filter screen (5) is located on a side close to the tunnel kiln body (1); and the mounting plate (6) is located on a side away from the tunnel kiln body (1).

6. The high-efficiency and environmentally friendly tunnel kiln waste heat recovery device according to claim 5 is characterized by: The drying box (12) is located between the heating box (11) and the water collecting box (13), the placement plate (32) is located between the drying box (12) and the water collecting box (13), one end of the first spring (18) is fixedly connected to the limit plate (17), the other end of the first spring (18) is fixedly connected to the sliding plate (16), and the fixing rods (15) are provided in four groups and are evenly distributed.

7. The high-efficiency and environmentally friendly tunnel kiln waste heat recovery device according to claim 6 is characterized by: The baffle plate (27) is attached to the box door (23), the pull plate (28) is located above the fixed plate (25), one end of the second spring (29) is fixedly connected to the fixed plate (25), and the other end of the second spring (29) is fixedly connected to the baffle plate (27), and the sliding rods (26) are provided in three groups and are evenly distributed.

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