Kiln waste heat utilization system

Abstract

The utility model relates to the technical field of kiln waste heat utilization, and discloses a kiln waste heat utilization system which comprises a bottom plate, the left side of the top of the bottom plate is fixedly connected with a kiln body, the right side of the top of the bottom plate is fixedly connected with a water tank, and the front side of the kiln body is rotationally connected with a kiln door. A first exhaust pipe is fixedly connected to the top of the kiln body, the lower end of the first exhaust pipe is fixedly connected to the middle of the rear side of the kiln body, partition plates are fixedly connected to the front side and the rear side of the interior of the water tank, and a plurality of evenly-distributed heat exchange pipes are fixedly connected to the sides, close to each other, of the two partition plates. And the left side of the top of the kiln main body is fixedly connected with a steam generator. According to the kiln waste heat utilization device, the kiln body, the water tank, the steam generator, the air pump, the condenser, the partition plate, the first exhaust pipe, the heat exchange pipe, the steam pipe, the condensation pipe, the second exhaust pipe, the filtering barrel and the rotating door are matched, and the function of kiln waste heat utilization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln waste heat utilization, in particular to a kiln waste heat utilization system. Background Art

[0002] The kiln waste heat utilization system is an equipment system used to recover and utilize the heat contained in the flue gas emitted by the kiln. This system is designed to convert the heat generated by the kiln into energy that can be used for other purposes, thereby improving energy utilization efficiency, reducing energy waste, reducing production costs, and reducing negative impacts on the environment.

[0003] Existing technologies include: using heat exchangers to transfer heat from the flue gas emitted by the kiln to other media, which can be used for heating, hot water production or driving generators to generate electricity. The CHP system can generate heat and electricity at the same time, improving the overall energy utilization efficiency. When the kiln stops operating or the energy demand is low, the excess heat is stored for subsequent use.

[0004] However, traditional kilns do not have a dedicated waste heat recovery function. Traditional kilns will generate a large amount of exhaust gas during operation, which contains a large amount of heat. If it is not effectively recycled, the heat will be directly discharged into the environment, causing energy waste. Therefore, a kiln waste heat utilization system is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a kiln waste heat utilization system, which aims to improve the problem of energy waste caused by the failure to effectively recover and utilize waste heat in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kiln waste heat utilization system, including a bottom plate, a kiln body is fixedly connected to the left side of the top of the bottom plate, a water tank is fixedly connected to the right side of the top of the bottom plate, a kiln door is rotatably connected to the front side of the kiln body, an exhaust pipe 1 is fixedly connected to the top of the kiln body, the lower end of the exhaust pipe 1 is fixedly connected to the middle part of the rear side of the kiln body, partitions are fixedly connected to the front and rear sides of the water tank, a plurality of evenly distributed heat exchange pipes are fixedly connected to the adjacent sides of the two partitions, a steam generator is fixedly connected to the left side of the top of the kiln body, and the output of the steam generator The inlet end is fixedly connected to the inside of the water tank, the output end of the steam generator is fixedly connected to a steam pipe, the right end of the steam pipe is fixedly connected to a condenser, the output end of the condenser is fixedly connected to a condenser, the left end of the condenser is fixedly connected to the right side of the inside of the water tank, the upper front side of the bottom plate is fixedly connected to an air pump, the output end of the air pump is fixedly connected to an air valve, the middle part of the front side of the water tank is fixedly connected to an exhaust pipe 2, the upper end of the exhaust pipe 2 is fixedly connected to a filter barrel, the upper end of the filter barrel is fixedly connected to the input end of the air pump, the front side of the filter barrel is rotatably connected to a rotating door, and a disassembly component is provided on the front side of the water tank.

[0007] Further, the disassembly assembly includes a second fixed block, which is fixedly connected to the left side of the filter barrel, a clamping block is fixedly connected to the middle part of the front side of the second fixed block, a support plate is fixedly connected to the bottom of the rear side of the rotating door, a filter element is slidably arranged on the upper part of the support plate, a fixed block is fixedly connected to the left end of the rotating door, a lever is rotatably connected to the lower inner side of the fixed block, a spring is fixedly connected to the left side of the upper end of the lever, the left end of the spring is fixedly connected to the left inner side of the fixed block, a connecting rod is rotatably connected to the upper end of the lever, the lower part of the clamping block is engaged with the middle part of the connecting rod, the upper end of the connecting rod is fixedly connected to a slider, and the slider is slidably connected to the upper inner side of the fixed block.

[0008] Furthermore, a handle is fixedly connected to the left front portion of the kiln door.

[0009] Furthermore, the front and rear ends of the plurality of heat exchange tubes respectively pass through the two partitions.

[0010] Furthermore, a water pipe is fixedly connected to the upper right side of the water tank, and a solenoid valve is fixedly connected to the middle part of the water pipe.

[0011] Furthermore, a mounting groove 1 is provided inside the filter barrel, and the filter element and the support plate both slide inside the mounting groove 1.

[0012] Furthermore, a second installation groove is provided on the rear side of the first fixing block, and the clamping block is slidably connected inside the second installation groove.

[0013] Furthermore, a sliding groove is provided in the upper inner portion of the fixing block 1, and the sliding block slides inside the sliding groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, a large amount of heat will be generated when the kiln main body is working. When the air pump is started, the air pump will continuously extract gas to form a negative pressure environment in the gas circuit. The gas will take away the heat, and the high-temperature gas will flow into the cavity on the rear side of the water tank along the exhaust pipe, and then the high-temperature gas will flow through multiple heat exchange tubes into the cavity on the front side. In this process, the heat of the gas will be transferred to the cooling water by multiple heat exchange tubes. Continuous heating makes the cooling water boil, and a large amount of water vapor will drive the steam generator to operate. The steam generator will generate electricity, and the water vapor will be transmitted along the steam pipe. When the water vapor flows through the condenser, it will be condensed into water and flow into the inside of the water tank through the condenser again, thereby realizing the function of utilizing the waste heat of the kiln.

[0016] 2. In the utility model, when the lever is pushed to the left, the upper end of the lever will rotate to the right, and the lever will pull the lower end of the connecting rod to slide to the right. Due to the limitation of the slider, the upper end of the connecting rod can only slide in the vertical direction. Thus, a triangular space will be formed between the lever and the connecting rod, and the spring will be stretched and extended. The fixing block 1 will be turned counterclockwise. At this time, the rotating door will carry the filter element and slide out. The filter element will be replaced and then the rotating door will be closed. The block will be completely inserted into the inside of the installation groove 2. The lever will be released, and the spring will pull the lever back to its position. The middle part of the connecting rod will bite into the lower part of the block, thereby realizing the function of quick installation and replacement of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a kiln waste heat utilization system proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a heat exchange tube of a kiln waste heat utilization system proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a filter element of a kiln waste heat utilization system proposed by the utility model;

[0020] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0021] Figure 5 The utility model provides a structural schematic diagram of a connecting rod of a kiln waste heat utilization system.

[0022] Legend:

[0023] 1. Bottom plate; 2. Kiln body; 3. Water tank; 4. Steam generator; 5. Air pump; 6. Condenser; 7. Partition; 8. Exhaust pipe 1; 9. Heat exchange tube; 10. Steam pipe; 11. Condenser; 12. Exhaust pipe 2; 13. Valve; 14. Sliding groove; 15. Filter barrel; 16. Rotating door; 17. Fixed block 1; 18. Fixed block 2; 19. Block; 20. Push rod; 21. Support plate; 22. Filter element; 23. Spring; 24. Connecting rod; 25. Slider; 26. Water pipe; 27. Solenoid valve; 28. Kiln door; 29. ​​Handle; 30. Installation groove 1; 31. Installation groove 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 3The utility model provides an embodiment: a kiln waste heat utilization system, including a bottom plate 1, the bottom plate 1 is used to support the upper structure stably, a kiln body 2 is fixedly connected to the left side of the top of the bottom plate 1, the kiln body 2 is used to calcine products, a water tank 3 is fixedly connected to the right side of the top of the bottom plate 1, the water tank 3 is used to hold cooling water, the front side of the kiln body 2 is rotatably connected to a kiln door 28, the kiln door 28 is used to close the kiln body 2, the front left side of the kiln door 28 is fixedly connected to a handle 29, the handle 29 is used to pull the kiln door 28 open and close, the top of the kiln body 2 is fixedly connected to an exhaust pipe 8, the exhaust pipe 8 is used to discharge high-temperature gas, and the lower end of the exhaust pipe 8 is fixedly The water tank 3 is fixedly connected to the middle of the rear side of the kiln body 2. The front and rear sides of the water tank 3 are fixedly connected with partitions 7. The two partitions 7 are used to divide the water tank 3 into three cavities. The cavities on the front and rear sides are used for gas circulation buffering, and the middle cavity is used to hold cooling water. A plurality of evenly distributed heat exchange tubes 9 are fixedly connected to the adjacent side of the two partitions 7. The plurality of heat exchange tubes 9 are used to transfer the heat of the high-temperature gas to the cooling water. The front and rear ends of the plurality of heat exchange tubes 9 respectively pass through the two partitions 7. The plurality of heat exchange tubes 9 can ensure that the gas circulation will not destroy the sealing of the three chambers. A steam generator 4 is fixedly connected to the left side of the top of the kiln body 2. The steam generator 4 is used to generate electricity. The steam generator 4 The input end is fixedly connected to the inside of the water tank 3, and the water vapor can enter the steam generator 4 to generate electricity. The output end of the steam generator 4 is fixedly connected to the steam pipe 10, and the steam pipe 10 is used to transmit water vapor. The right end of the steam pipe 10 is fixedly connected to the condenser 6, and the condenser 6 is used to cool the water vapor with a higher temperature. The output end of the condenser 6 is fixedly connected to the condenser pipe 11, and the condenser pipe 11 is used to conduct the cooled water back to the inside of the water tank 3. The left end of the condenser pipe 11 is fixedly connected to the right side of the inside of the water tank 3. The upper front side of the bottom plate 1 is fixedly connected to the air pump 5, and the air pump 5 is used to extract gas to form a negative pressure environment in the gas circuit. The output end of the air pump 5 is fixedly connected to the valve 13 The valve 13 is used to discharge the gas. The middle part of the front side of the water tank 3 is fixedly connected with an exhaust pipe 212. The exhaust pipe 212 is used to output the gas with reduced temperature. The upper end of the exhaust pipe 212 is fixedly connected with a filter barrel 15. The filter barrel 15 is used to install a filter element 22. The upper end of the filter barrel 15 is fixedly connected to the input end of the air pump 5. The front side of the filter barrel 15 is rotatably connected with a rotating door 16. The rotating door 16 is used to close the filter barrel 15. A disassembly component is provided on the front side of the water tank 3. A water pipe 26 is fixedly connected to the upper right side of the water tank 3. The water pipe 26 is used to transport water. The middle part of the water pipe 26 is fixedly connected with an electromagnetic valve 27. The electromagnetic valve 27 is used to control the opening and closing of the water pipe 26.

[0026] Reference Figure 1 , Figure 4 and Figure 5The disassembly assembly includes a fixing block 18, which is fixedly connected to the left side of the filter barrel 15. The fixing block 18 is used to fix a card block 19. The middle part of the front side of the fixing block 18 is fixedly connected with a card block 19. The card block 19 is used to assist in installing a filter element 22. A support plate 21 is fixedly connected to the bottom of the rear side of the rotating door 16. The support plate 21 is used to clamp the filter element 22. A filter element 22 is slidably arranged on the upper part of the support plate 21. The filter element 22 is used to filter gas. An installation groove 30 is arranged inside the filter barrel 15. The installation groove 30 is used to provide an installation space for the filter element 22. The filter element 22 and the support plate 21 both slide inside the installation groove 30. A fixing block 17 is fixedly connected to the left end of the rotating door 16. The fixing block 17 is used to protect the internal structure from external interference. An installation groove 21 is arranged on the rear side of the fixing block 17. The installation groove 21 is used to provide a card block 19. The sliding space, the block 19 is slidably connected to the inside of the mounting groove 21, and the lower side of the interior of the fixed block 17 is rotatably connected with the lever 20, and the lever 20 is used to pull the connecting rod 24. The upper left side of the upper end of the lever 20 is fixedly connected with a spring 23, and the spring 23 is used to rebound and pull the lever 20 to slide. The left end of the spring 23 is fixedly connected to the inner left side of the fixed block 17, and the upper end of the lever 20 is rotatably connected with the connecting rod 24, and the connecting rod 24 is used to pull the slider 25 to slide. The lower part of the block 19 is engaged with the middle part of the connecting rod 24, and the upper end of the connecting rod 24 is fixedly connected with a slider 25. The slider 25 is used to limit the movement of the connecting rod 24 to prevent it from sliding out. A sliding groove 14 is provided on the upper inner part of the fixed block 17, and the sliding groove 14 is used to limit the sliding of the slider 25. The slider 25 slides in the sliding groove 14, and the slider 25 is slidably connected to the inner upper side of the fixed block 17.

[0027] Working principle: control the solenoid valve 27 to open, at this time, water will enter the middle of the water tank 3 through the water pipe 26, when the water volume in the middle of the water tank 3 is appropriate, control the solenoid valve 27 to close, then pull the handle 29 to open the kiln door 28, then place the processed raw materials inside the kiln body 2, push the handle 29 to close the kiln door 28, and then the kiln body 2 starts to work. When the kiln body 2 is working, a lot of heat will be generated. In order to effectively utilize such heat, start the air pump 5, and the air pump 5 will continuously extract gas, so the heat generated by the kiln body 2 will be taken away by the gas, and the high-temperature gas will flow along the exhaust pipe 8, and the high-temperature gas will flow into the cavity on the rear side of the water tank 3, and the high-temperature gas will fill the interior of the rear cavity. , the high-temperature gas will flow through the multiple heat exchange tubes 9 and enter the cavity on the front side. In this process, the high-temperature gas will become low-temperature gas. Due to the multiple curved loops of the multiple heat exchange tubes 9, the heat exchange area of ​​the multiple heat exchange tubes 9 is huge. The heat contained in the high-temperature gas will be transferred to the multiple heat exchange tubes 9 with extremely strong thermal conductivity through heat conduction. The heated multiple heat exchange tubes 9 will continue to be taken away by the cooling water in the water tank 3. In this process, the cooling water in the water tank 3 will continue to be heated. When the temperature of the cooling water reaches the boiling point, a large amount of steam will be generated in the water tank 3. With the generation of a large amount of water vapor, a large amount of water vapor will generate pressure in the water tank 3, and the high-pressure water vapor will drive the steam power generation on the upper part of the water tank 3. When the machine 4 is running, the steam generator 4 will generate electricity, and then the water vapor will be transmitted along the steam pipe 10. When the water vapor flows through the condenser 6, a large amount of water vapor will be condensed into water and flow into the water tank 3 through the condenser 11 again, thereby realizing the function of waste heat utilization. When the gas with low heat flows into the cavity on the front side of the water tank 3, as the air pump 5 continues to extract, the low-heat gas will flow out from the exhaust pipe 12, and the low-heat gas will enter the filter barrel 15. In the filter barrel 15, the harmful substances generated during the calcination of the product contained in the low-heat gas will be filtered and adsorbed by the filter element 22. The filtered low-heat gas will flow through the air pump 5 and then be discharged through the valve 13. Long-term use of the equipment requires regular replacement of the filter element 22 to ensure gas exhaust. The standard for placing is to push the lever 20 to the left, the upper end of the lever 20 will rotate to the right, and the lever 20 will pull the lower end of the connecting rod 24 to slide to the right. When the lower end of the connecting rod 24 slides to the right, the upper end of the connecting rod 24 will be restricted by the slider 25 and can only slide inside the sliding groove 14. The upper end of the connecting rod 24 can only slide in the vertical direction, thereby forming a triangular space between the lever 20 and the connecting rod 24. At this time, the spring 23 will be stretched and extended, and the fixing block 17 will be turned counterclockwise. At this time, the rotating door 16 will carry the filter element 22 to rotate and slide out, and then the relevant personnel can take out the filter element 22 and replace it with a new filter element 22, push the rotating door 16 clockwise to make the block 19 contact the inside of the installation groove 2 31, and then push the lever 20 to the left.The triangular space between the lever 20 and the connecting rod 24 can accommodate the block 19 to be fully inserted into the second installation groove 31, and then the lever 20 is released. At this time, the spring 23 will rebound due to the loss of pressure, and the spring 23 will pull the lever 20 back. In this process, the upper end of the lever 20 will push the upper end of the connecting rod 24 to slide upward. When the spring 23 returns, the lever 20 and the connecting rod 24 will be at the same vertical position, and the middle part of the connecting rod 24 will bite into the lower part of the block 19, thereby realizing the function of quick installation and replacement of the filter element 22.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A kiln waste heat utilization system, comprising a bottom plate (1), characterized in that: The left side of the top of the bottom plate (1) is fixedly connected to a kiln body (2), the right side of the top of the bottom plate (1) is fixedly connected to a water tank (3), the front side of the kiln body (2) is rotatably connected to a kiln door (28), the top of the kiln body (2) is fixedly connected to an exhaust pipe (8), the lower end of the exhaust pipe (8) is fixedly connected to the middle of the rear side of the kiln body (2), the front and rear sides of the water tank (3) are fixedly connected to partitions (7), the adjacent sides of the two partitions (7) are fixedly connected to a plurality of evenly distributed heat exchange tubes (9), the left side of the top of the kiln body (2) is fixedly connected to a steam generator (4), the input end of the steam generator (4) is fixedly connected to the inside of the water tank (3), and the output end of the steam generator (4) is fixedly connected to the inside of the water tank (3). A steam pipe (10) is fixedly connected, the right end of the steam pipe (10) is fixedly connected to a condenser (6), the output end of the condenser (6) is fixedly connected to a condenser pipe (11), the left end of the condenser pipe (11) is fixedly connected to the right side of the inside of the water tank (3), the upper front side of the bottom plate (1) is fixedly connected to an air pump (5), the output end of the air pump (5) is fixedly connected to an air valve (13), the middle part of the front side of the water tank (3) is fixedly connected to an exhaust pipe 2 (12), the upper end of the exhaust pipe 2 (12) is fixedly connected to a filter barrel (15), the upper end of the filter barrel (15) is fixedly connected to the input end of the air pump (5), the front side of the filter barrel (15) is rotatably connected to a rotating door (16), and a disassembly component is provided on the front side of the water tank (3).

2. A kiln waste heat utilization system according to claim 1, characterized in that: The disassembly assembly comprises a second fixing block (18), the second fixing block (18) being fixedly connected to the left side of the filter barrel (15), a clamping block (19) being fixedly connected to the middle of the front side of the second fixing block (18), a support plate (21) being fixedly connected to the bottom of the rear side of the rotating door (16), a filter element (22) being slidably disposed on the upper part of the support plate (21), a first fixing block (17) being fixedly connected to the left end of the rotating door (16), and a lower inner side of the first fixing block (17) being rotatably connected to the filter barrel (15). A lever (20) is provided, the left side of the upper end of the lever (20) is fixedly connected to a spring (23), the left end of the spring (23) is fixedly connected to the left side of the interior of the fixed block (17), the upper end of the lever (20) is rotatably connected to a connecting rod (24), the lower part of the clamping block (19) is engaged with the middle part of the connecting rod (24), the upper end of the connecting rod (24) is fixedly connected to a sliding block (25), and the sliding block (25) is slidably connected to the upper side of the interior of the fixed block (17).

3. The kiln waste heat utilization system according to claim 1, characterized in that: A handle (29) is fixedly connected to the left front portion of the kiln door (28).

4. The kiln waste heat utilization system according to claim 1, characterized in that: The front and rear ends of the plurality of heat exchange tubes (9) respectively penetrate the two partition plates (7).

5. The kiln waste heat utilization system according to claim 1, characterized in that: A water pipe (26) is fixedly connected to the upper right side of the water tank (3), and a solenoid valve (27) is fixedly connected to the middle part of the water pipe (26).

6. The kiln waste heat utilization system according to claim 2, characterized in that: The filter barrel (15) is provided with a mounting groove (30) inside, and the filter element (22) and the support plate (21) both slide inside the mounting groove (30).

7. The kiln waste heat utilization system according to claim 2, characterized in that: A second installation groove (31) is provided on the rear side of the first fixing block (17), and the clamping block (19) is slidably connected inside the second installation groove (31).

8. The kiln waste heat utilization system according to claim 2, characterized in that: A sliding groove (14) is provided in the upper inner portion of the fixing block 1 (17), and the sliding block (25) slides inside the sliding groove (14).

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