Energy-saving heating device of rotary kiln

Abstract

The utility model relates to the technical field of thermal equipment, and discloses an energy-saving heating device of a rotary kiln, which comprises a bearing table, the upper surface of the bearing table is fixedly connected with a treatment box, the front end of the treatment box is provided with a sliding groove, and a preheating assembly is arranged in the treatment box. Through the design of a movable sliding block and a containing box, filling and taking out of raw materials are more convenient and faster, an operator can easily pull out or push in the containing box from the treatment box through a handle, replacement and cleaning of the raw materials are facilitated, when high-temperature flue gas passes through a snakelike gas pipe, a heat conduction plate in contact with the snakelike gas pipe can absorb heat on the surface of a pipe body, and the heat conduction effect is improved. The heat conduction plate transmits absorbed heat to the materials in the containing box, it is ensured that the raw materials are evenly heated, the preheating effect is improved, the raw materials can reach the high temperature before entering the rotary kiln, and therefore time and energy needed for heating the raw materials in the kiln are reduced, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal equipment, in particular to an energy-saving heating device for a rotary kiln. Background Art

[0002] Rotary kiln is a thermal equipment widely used in building materials, metallurgy, chemical industry and other fields. It is mainly used for high-temperature calcination, roasting, drying and other processes of materials.

[0003] The heating method of traditional rotary kilns mainly relies on directly burning fuel to generate high temperatures to meet the needs of calcining, roasting or drying materials. This heating method generally has the problems of high energy consumption and low utilization efficiency. In addition, the flue gas generated by combustion contains a large amount of heat that is not fully utilized. If measures are not taken to recover and reuse this heat, it will not only lead to waste of heat energy, but also cause environmental pollution because the high-temperature flue gas is directly discharged into the atmosphere. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an energy-saving heating device for a rotary kiln.

[0005] The utility model is implemented by the following technical scheme: an energy-saving heating device for a rotary kiln, comprising a supporting platform, the upper surface of which is fixedly connected to a processing box, a sliding groove is provided at the front end of the processing box, and a preheating component is arranged inside the processing box;

[0006] The preheating assembly includes a movable slider, which is slidably connected to the inside of a sliding groove, a placement box is fixedly connected to the surface of the movable slider, the placement box is slidably connected to the inner wall of the processing box through the movable slider, a handle is fixedly connected to the middle of the front end of the placement box, and a heat conduction plate is provided on the inner bottom wall of the placement box.

[0007] Through the above technical solution, the design of the movable slider and the placement box makes the loading and removal of raw materials more convenient and quick. The operator can easily pull out or push the placement box from the processing box through the handle, which is convenient for the replacement and cleaning of raw materials. The setting of the heat conduction plate can effectively transfer the heat of the high-temperature flue gas to the raw materials in the placement box, ensuring that the raw materials are evenly heated, improving the preheating effect, and allowing the raw materials to reach a higher temperature before entering the rotary kiln, thereby reducing the time and energy required to heat the raw materials in the kiln, and further reducing production costs.

[0008] As a further improvement of the above solution, an air inlet pipe is fixedly connected to the outer surface of the processing box, and a filter box is fixedly connected to the upper surface of the supporting platform.

[0009] Through the above technical scheme, the setting of the air inlet pipe can conveniently introduce the high-temperature flue gas into the interior of the treatment box to provide a heat source for the preheating component. The setting of the filter box can filter and purify the introduced high-temperature flue gas, remove dust and other harmful substances in the flue gas, and then discharge it into the external environment.

[0010] As a further improvement of the above solution, a guide groove is provided on the inner wall of the filter box, and an auxiliary block is slidably connected inside the guide groove. A fine filter screen is fixedly connected to the surface of the auxiliary block.

[0011] Through the above technical solution, through the design of the guide groove and the auxiliary block, the installation and removal of the fine filter can be made more convenient, and it is easy to replace and clean it regularly, so as to maintain the filtering effect and the normal operation of the equipment.

[0012] As a further improvement of the above solution, a grab bar is fixedly connected to the middle of the upper surface of the fine filter screen, and the fine filter screen is slidably connected to the inner wall of the filter box through an auxiliary block.

[0013] Through the above technical solution, the design of the grab bar provides a convenient grabbing point, and the operator can easily pull out or push in the fine filter through the grab bar, simplifying the replacement and cleaning process of the filter.

[0014] As a further improvement of the above solution, one end of the air inlet pipe is fixedly connected to a serpentine air pipe, the outer surface of the serpentine air pipe is fixedly connected to a positioning seat, and the positioning seat is fixedly connected to the inner wall of the processing box.

[0015] Through the above technical solution, the design of the serpentine air duct increases the length and tortuosity of the airflow path, thereby increasing the contact area with the heat conduction plate above, so that more heat can be absorbed by the heat conduction plate and transferred to the raw materials in the placement box, thereby improving the preheating efficiency of the raw materials.

[0016] As a further improvement of the above solution, the other end of the serpentine air pipe is fixedly connected to the inside of the filter box, and the outer surface of the filter box is fixedly connected to an exhaust pipe.

[0017] Through the above technical solution, in the filter box, particulate matter and harmful gases in the flue gas can be separated and captured by a fine filter mesh, thereby meeting emission standards and reducing pollution to the environment.

[0018] As a further improvement of the above solution, a frame is fixedly installed on the inner bottom wall of the processing box by bolts, a fan is arranged inside the frame, and a supporting base is fixedly connected to the lower surface of the supporting platform.

[0019] Through the above technical solution, the setting of the fan can effectively enhance the heat exchange between the outer surface of the serpentine air duct and the surrounding air. By accelerating the air flow, the heat is quickly transferred to the heat conduction plate above, thereby significantly improving the heat conduction efficiency. This design enables the heat of the high-temperature gas to be absorbed and reused more quickly.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model makes it more convenient and quick to load and take out the raw materials by arranging the preheating component, the movable slider and the placement box. The operator can easily pull out or push the placement box from the processing box by the handle, which is convenient for replacing and cleaning the raw materials. When the high-temperature flue gas passes through the serpentine air pipe, the heat conduction plate in contact with the serpentine air pipe will absorb the heat on the surface of the pipe body, and the heat conduction plate will transfer the absorbed heat to the material in the placement box, ensuring that the raw materials are heated evenly, improving the preheating effect, and enabling the raw materials to reach a higher temperature before entering the rotary kiln, thereby reducing the time and energy required for heating the raw materials in the kiln and further reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a structural schematic diagram of the fine filter screen of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the serpentine trachea of ​​the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the fan of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the preheating component of the utility model.

[0027] Description of main symbols:

[0028] 1. Supporting platform; 2. Processing box; 3. Slide groove; 4. Preheating assembly; 401. Movable slider; 402. Placement box; 403. Handle; 404. Heat transfer plate; 5. Inlet pipe; 6. Filter box; 7. Guide groove; 8. Auxiliary block; 9. Fine filter; 10. Grab bar; 11. Serpentine air pipe; 12. Positioning seat; 13. Exhaust pipe; 14. Frame; 15. Fan; 16. Support base. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] Example:

[0031] Please combine Figure 1-5 The energy-saving heating device of a rotary kiln of this embodiment comprises a supporting platform 1, a processing box 2 is fixedly connected to the upper surface of the supporting platform 1, a sliding groove 3 is provided at the front end of the processing box 2, and a preheating component 4 is arranged inside the processing box 2;

[0032] The preheating assembly 4 includes a movable slider 401, which is slidably connected to the inside of the slide groove 3. A placement box 402 is fixedly connected to the surface of the movable slider 401. The placement box 402 is slidably connected to the inner wall of the processing box 2 through the movable slider 401. A handle 403 is fixedly connected to the middle of the front end of the placement box 402. A heat conducting plate 404 is provided on the inner bottom wall of the placement box 402. First, the operator pulls the handle 403 at the front end of the placement box 402 to pull the placement box 402 out of the processing box 2. The material to be preheated is placed in the placement box 402, and then the handle 403 is pushed to push the placement box 402 together with the material into the processing box 2 until the movable slider 401 slides into place inside the sliding groove 3. The inner bottom wall of the placement box 402 is provided with a heat conduction plate 404. When the high-temperature flue gas passes through the serpentine air pipe 11, the heat conduction plate 404 in contact with the serpentine air pipe 11 will absorb the heat from the surface of the pipe body, and the heat conduction plate 404 will transfer the absorbed heat to the material in the placement box 402, thereby realizing the preheating of the material.

[0033] An air intake pipe 5 is fixedly connected to the outer surface of the processing box 2, and a filter box 6 is fixedly connected to the upper surface of the supporting platform 1. The air intake pipe 5 is used to introduce high-temperature flue gas into the interior of the processing box 2. The high-temperature flue gas enters the serpentine air pipe 11 through the air intake pipe 5, exchanges heat with the heat conduction plate 404 in the preheating component 4, and transfers heat to the heat conduction plate 404, thereby preheating the material in the placement box 402. After the heat of the flue gas is transferred through the serpentine air pipe 11, the heat of the gas is reduced, and then it is filtered through the filter box 6 and discharged to the outside.

[0034] The inner wall of the filter box 6 is provided with a guide groove 7, and an auxiliary block 8 is slidably connected inside the guide groove 7. A fine filter screen 9 is fixedly connected to the surface of the auxiliary block 8. Through the sliding connection of the auxiliary block 8, the fine filter screen 9 can be easily pulled out and installed, and is convenient for cleaning and replacement.

[0035] A grab bar 10 is fixedly connected to the middle of the upper surface of the fine filter screen 9, and the fine filter screen 9 is slidably connected to the inner wall of the filter box 6 through the auxiliary block 8. The design of the grab bar 10 provides a convenient grabbing point. The operator can easily pull out or push in the fine filter screen 9 through the grab bar 10, simplifying the replacement and cleaning process of the filter screen.

[0036] One end of the air inlet pipe 5 is fixedly connected to a serpentine air pipe 11, and the outer surface of the serpentine air pipe 11 is fixedly connected to a positioning seat 12, and the positioning seat 12 is fixedly connected to the inner wall of the treatment box 2. The serpentine air pipe 11 is used to extend the residence time of the high-temperature flue gas inside the treatment box 2 and improve the heat exchange efficiency. Through the serpentine design, the flue gas can form a tortuous flow path inside the treatment box 2, extending its contact time with the heat conduction plate 404, thereby improving the heat transfer effect.

[0037] The other end of the serpentine air pipe 11 is fixedly connected to the inside of the filter box 6, and the outer surface of the filter box 6 is fixedly connected to the exhaust pipe 13. After heat exchange inside the treatment box 2 and filtration in the filter box 6, the low-temperature flue gas is discharged through the exhaust pipe 13, completing the entire heat exchange process.

[0038] A frame 14 is fixedly installed on the inner bottom wall of the processing box 2 by bolts, and a fan 15 is arranged inside the frame 14. The lower surface of the support platform 1 is fixedly connected to a support base 16. The setting of the fan 15 can effectively enhance the heat exchange between the outer surface of the serpentine air pipe 11 and the surrounding air, and quickly transfer the heat to the upper heat conduction plate 404 by accelerating the air flow, thereby significantly improving the heat conduction efficiency. This design enables the heat of the high-temperature gas to be absorbed and reused more quickly.

[0039] The implementation principle of an energy-saving heating device of a rotary kiln in the embodiment of the present application is as follows: the operator pulls the handle 403 at the front end of the placement box 402 to pull the placement box 402 out of the processing box 2, puts the material to be preheated into the placement box 402, and then pushes the handle 403 to push the placement box 402 together with the material into the processing box 2 until the movable slider 401 slides into place inside the slide groove 3. The inner bottom wall of the placement box 402 is provided with a heat conduction plate 404. When the high-temperature flue gas passes through the serpentine air pipe 11, the heat conduction plate 404 in contact with the serpentine air pipe 11 will absorb the heat from the surface of the pipe body and transfer the heat to the material in the placement box 402, thereby realizing the preheating of the material. The high-temperature flue gas passes through the air intake Tube 5 enters the serpentine air pipe 11, and exchanges heat with the heat conducting plate 404 in the serpentine air pipe 11, transferring heat to the heat conducting plate 404. Through the serpentine design, the flue gas forms a tortuous flow path inside the treatment box 2, extending its contact time with the heat conducting plate 404, thereby improving the heat transfer effect. After the flue gas is transferred through the serpentine air pipe 11, the heat of the gas is reduced and then enters the filter box 6. Inside the filter box 6, the flue gas is filtered through a fine filter screen 9 to remove impurities and particulate matter therein. The filtered flue gas is discharged to the outside through an exhaust pipe 13. Through the sliding connection of the auxiliary block 8, the operator can easily pull out or push in the fine filter screen 9 through the grab bar 10, which is convenient for cleaning and replacement.

[0040] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An energy-saving heating device for a rotary kiln, characterized in that: It comprises a supporting platform (1), the upper surface of which is fixedly connected to a processing box (2), a front end of which is provided with a sliding groove (3), and a preheating component (4) is arranged inside the processing box (2); The preheating assembly (4) comprises a movable slider (401), the movable slider (401) is slidably connected to the inside of the sliding groove (3), a placement box (402) is fixedly connected to the surface of the movable slider (401), the placement box (402) is slidably connected to the inner wall of the processing box (2) through the movable slider (401), a handle (403) is fixedly connected to the middle of the front end of the placement box (402), and a heat conduction plate (404) is provided on the inner bottom wall of the placement box (402).

2. The energy-saving heating device for a rotary kiln according to claim 1, characterized in that: An air inlet pipe (5) is fixedly connected to the outer surface of the processing box (2), and a filter box (6) is fixedly connected to the upper surface of the supporting platform (1).

3. The energy-saving heating device for a rotary kiln according to claim 2, characterized in that: The inner wall of the filter box (6) is provided with a guide groove (7), the interior of the guide groove (7) is slidably connected with an auxiliary block (8), and the surface of the auxiliary block (8) is fixedly connected with a fine filter screen (9).

4. The energy-saving heating device for a rotary kiln according to claim 3, characterized in that: A grab bar (10) is fixedly connected to the middle of the upper surface of the fine filter screen (9), and the fine filter screen (9) is slidably connected to the inner wall of the filter box (6) through an auxiliary block (8).

5. The energy-saving heating device for a rotary kiln according to claim 2, characterized in that: One end of the air inlet pipe (5) is fixedly connected to a serpentine air pipe (11), the outer surface of the serpentine air pipe (11) is fixedly connected to a positioning seat (12), and the positioning seat (12) is fixedly connected to the inner wall of the processing box (2).

6. The energy-saving heating device for a rotary kiln according to claim 5, characterized in that: The other end of the serpentine air pipe (11) is fixedly connected to the interior of the filter box (6), and the outer surface of the filter box (6) is fixedly connected to an exhaust pipe (13).

7. The energy-saving heating device for a rotary kiln according to claim 1, characterized in that: A frame (14) is fixedly mounted on the inner bottom wall of the processing box (2) by means of bolts, a fan (15) is arranged inside the frame (14), and a support base (16) is fixedly connected to the lower surface of the support platform (1).

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