A decomposition furnace with easy cleaning

Abstract

The utility model relates to cement production equipment technical field, concretely is a kind of decomposing furnace of easy cleaning, the top of decomposing furnace main part is equipped with feed pipe, the side of decomposing furnace main part is equipped with oxygen pipe and fuel pipe, the lower end of decomposing furnace main part is equipped with discharge pipe, and valve is all equipped on feed pipe, oxygen pipe and discharge pipe, the top of decomposing furnace main part is fixedly arranged annular top seat, the inner ring of annular top seat is rotatably arranged annular frame by bearing, annular frame is equipped with empty slot, and the inner wall of empty slot is equipped with multiple positioning slots, the inner wall of positioning slot is equipped with slot, the top of decomposing furnace main part is equipped with detachable top cover, and annular frame is located inside top cover, by detachable top cover design, avoid the space limitation of traditional side maintenance door, make cleaning component can directly enter furnace body from top, cooperate rotatable standpipe and multiple spray head structure, eliminate the cleaning dead angle at furnace inner wall, ensure that the inside wall skin is completely removed.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, specifically to a decomposition furnace that is easy to clean. Background Technology

[0002] The precalciner is the core equipment of the precalciner kiln system in modern cement production. Its application directly promotes the development of the cement industry towards high efficiency, energy saving and large scale. It is a key link connecting the preheater and the rotary kiln.

[0003] During long-term operation, traditional decomposition furnaces are prone to forming a hard crust on the inner wall of the furnace due to high-temperature reactions. The main components are a mixture of raw material dust and molten material. Existing cleaning methods have obvious defects: they rely on manual entry through the side inspection door. Due to the narrow internal space of the furnace and the high-temperature residue, cleaning tools cannot reach the top and upper areas, resulting in incomplete crust removal, which affects subsequent thermal efficiency and increases equipment maintenance costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a decomposition furnace that is easy to clean.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a decomposition furnace that is easy to clean, comprising a decomposition furnace body and a cleaning assembly. The top of the decomposition furnace body is provided with a feed pipe, one side of the decomposition furnace body is provided with an oxygen pipe and a fuel pipe, and the lower end of the decomposition furnace body is provided with a discharge pipe. Valves are provided on the feed pipe, the oxygen pipe and the discharge pipe. An annular top seat is fixedly provided on the top of the decomposition furnace body. An annular frame is rotatably provided on the inner ring of the annular top seat through a bearing. The annular frame is provided with a slot, and multiple positioning slots are provided on the inner wall of the slot. A retaining groove is provided on the inner wall of the positioning groove. A detachable top cover is provided on the top of the decomposition furnace body, and the annular frame is located inside the top cover.

[0008] The cleaning assembly includes a positioning seat, a vertical tube, and an adapter tube. The positioning seat is inserted into the empty slot. Multiple positioning blocks are provided on the periphery of the positioning seat and inserted into the positioning slot. The vertical tube passes vertically through the positioning seat and is fixedly connected to the positioning seat. Multiple nozzles are provided on the outer wall of the vertical tube. The adapter tube is located above the positioning seat and is connected to the top of the vertical tube through a rotary joint.

[0009] To facilitate assembly of the top cover, the present invention includes the following improvements: the upper end of the decomposition furnace body is provided with an annular groove, the annular top seat is located in the inner circle of the annular groove, and the lower end of the top cover is inserted into the annular groove and threadedly connected to the decomposition furnace body.

[0010] To facilitate the operation of the ring frame and the top cover, the present invention is improved by providing multiple actuating blocks on the outer wall of the ring frame and the outer wall of the top cover.

[0011] To ensure the airtightness of the top cover, the improvement of this utility model is that a sealing ring is bonded to the upper surface of the ring frame.

[0012] To make the positioning seat more securely installed in the slot, the present invention is improved by providing a cavity inside the positioning block, with a spring inside the cavity. One end of the spring is fixed inside the cavity, and the other end is provided with a locking block that cooperates with the slot. All locking blocks are isosceles trapezoidal structures.

[0013] To improve the stability of the transfer pipe during use, the present invention includes an improvement whereby a support rod is fixedly installed on one side of the transfer pipe, and the support rod is fixed to the upper end of the decomposition furnace body by screws.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a decomposition furnace that is easy to clean, and has the following beneficial effects:

[0016] The removable top cover design avoids the space limitations of traditional side access doors, allowing the cleaning components to enter the furnace directly from the top. Combined with the rotatable vertical pipe and multi-nozzle structure, it eliminates cleaning dead spots on the inner wall of the furnace, ensuring that the scale on the inner wall is completely removed, thus improving the cleaning quality and efficiency of the decomposition furnace. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the cleaning component in this utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the card block of this utility model;

[0021] In the diagram: 1. Main body of the decomposition furnace; 2. Feed pipe; 3. Oxygen pipe; 4. Annular top seat; 5. Annular frame; 6. Sealing ring; 7. Positioning groove; 8. Slot; 9. Top cover; 10. Annular groove; 11. Positioning seat; 12. Positioning block; 13. Cavity; 14. Slot; 15. Vertical pipe; 16. Nozzle; 17. Transfer pipe; 18. Support rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model discloses a decomposition furnace that is easy to clean, comprising a decomposition furnace body 1 and a cleaning assembly. The top of the decomposition furnace body 1 is provided with a feed pipe 2, and one side of the decomposition furnace body 1 is provided with an oxygen pipe 3 and a fuel pipe. The lower end of the decomposition furnace body 1 is provided with a discharge pipe, and valves are provided on the feed pipe 2, the oxygen pipe 3 and the discharge pipe. An annular top seat 4 is fixedly provided on the top of the decomposition furnace body 1. An annular frame 5 is rotatably provided on the inner ring of the annular top seat 4 through a bearing. The annular frame 5 is provided with a slot, and multiple positioning slots 7 are provided on the inner wall of the slot. The inner wall of the positioning slots 7 is provided with a slot 8. A detachable top cover 9 is provided on the top of the decomposition furnace body 1, and the annular frame 5 is located inside the top cover 9.

[0024] The cleaning assembly includes a positioning seat 11, a vertical tube 15, and a connecting pipe 17. The positioning seat 11 is inserted into the empty slot. Multiple positioning blocks 12 are provided on the periphery of the positioning seat 11 and inserted into the positioning slot 7. The vertical tube 15 passes vertically through the positioning seat 11 and is fixedly connected to the positioning seat 11. Multiple nozzles 16 are provided on the outer wall of the vertical tube 15. The connecting pipe 17 is located above the positioning seat 11 and is connected to the top of the vertical tube 15 through a rotary joint.

[0025] After the raw material enters the main body 1 of the decomposition furnace through the top feed pipe 2, it comes into full contact with the combustion air supplied from the bottom oxygen pipe 3 and the high-temperature airflow generated by fuel combustion. The furnace utilizes the waste heat of the high-temperature exhaust gas discharged from the rotary kiln, combined with the heat released by fuel combustion, to form a high-temperature environment suitable for carbonate decomposition.

[0026] The positioning block 12 has a cavity 13 inside, and a spring is provided inside the cavity 13. One end of the spring is fixed inside the cavity 13, and the other end is provided with a locking block 14 that cooperates with the locking slot 8. All locking blocks 14 are isosceles trapezoidal structures.

[0027] The upper end of the decomposition furnace body 1 is provided with an annular groove 10, the annular top seat 4 is located in the inner circle of the annular groove 10, and the lower end of the top cover 9 is inserted into the annular groove 10 and threadedly connected to the decomposition furnace body 1.

[0028] Multiple actuating blocks are provided on the outer wall of the ring frame 5 and the outer wall of the top cover 9.

[0029] The number of pipes on the main body 1 of the decomposition furnace is not subject to mandatory regulations.

[0030] When it is necessary to clean the inside of the decomposition furnace body 1, firstly, by operating the actuating block on the outer wall of the top cover 9, the top cover 9 is rotated and disassembled, exposing the annular frame 5 and the empty trough structure on the top of the decomposition furnace.

[0031] Subsequently, take the positioning seat 11 of the cleaning component, align the vertical pipe 15 with multiple nozzles 16 with the empty slot and insert it into the furnace, ensuring that the positioning blocks 12 on the periphery of the positioning seat 11 are accurately embedded in the positioning slots 7 of the ring frame 5.

[0032] At this time, the spring in the cavity 13 inside the positioning block 12 will push the locking block 14 out and engage with the locking groove 8 on the inner wall of the positioning groove 7, so as to achieve a stable installation of the positioning seat 11.

[0033] Next, connect the external water pump conduit to the transfer pipe 17, and fix the transfer pipe 17 to the upper end of the decomposition furnace with the support rod 18 to ensure stability.

[0034] After the water pump is started, the cleaning fluid is delivered to each nozzle 16 and sprayed out through the transfer pipe 17 and the vertical pipe 15.

[0035] By moving the actuating block on the outer wall of the ring frame 5, the ring frame 5 is driven to rotate around the bearing, thereby causing the positioning seat 11 and the vertical pipe 15 to rotate synchronously, so as to achieve all-round washing of the inner wall of the furnace by the nozzle 16.

[0036] During the cleaning process, open the valve of the discharge pipe to allow the waste liquid to be discharged to the designated location through the discharge pipe (the discharge pipe and the feed pipe 2 are installed in the same way, so their installation method will not be described in detail here). After cleaning, press the locking block 14 to disengage it from the locking slot 8, remove the positioning seat 11 and the vertical pipe 15 from the empty slot, and finally reinstall the top cover 9 back onto the top of the decomposition furnace to complete the entire cleaning operation.

[0037] The threaded connection between the top cover 9 and the furnace body, along with the actuating block design, simplifies the assembly and disassembly process. The positioning seat 11 is fixed by the quick engagement of the locking block 14 and the locking slot 8, allowing the installation and disassembly of the cleaning components to be completed without complicated tools, reducing the intensity of manual operation. At the same time, mechanical rinsing replaces manual knocking, avoiding damage to the wear-resistant lining of the furnace wall and extending the service life of the equipment.

[0038] A sealing ring 6 is bonded to the upper surface of the ring frame 5.

[0039] The sealing ring 6 on the upper surface of the ring frame 5 forms an effective seal after the top cover 9 is installed, preventing the leakage of hot gas or dust inside the furnace.

[0040] A support rod 18 is fixedly installed on one side of the transfer pipe 17, and the support rod 18 is fixed to the upper end of the decomposition furnace body 1 by screws.

[0041] The adapter pipe 17 is fixed by the support rod 18, and the vertical pipe 15 remains stable during rotation, ensuring that the cleaning process is safe and reliable and does not affect the subsequent normal operation of the equipment.

[0042] The efficient cleaning method shortens downtime, reduces production interruptions caused by frequent cleaning, indirectly improves the continuous production efficiency of cement plants, and reduces energy losses caused by equipment maintenance.

[0043] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A decomposition furnace that is easy to clean, comprising a decomposition furnace body (1) and a cleaning assembly, wherein a feed pipe (2) is provided at the top of the decomposition furnace body (1), an oxygen pipe (3) and a fuel pipe are provided on one side of the decomposition furnace body (1), and a discharge pipe is provided at the lower end of the decomposition furnace body (1), and valves are provided on the feed pipe (2), the oxygen pipe (3) and the discharge pipe, characterized in that: The top of the decomposition furnace body (1) is fixedly provided with an annular top seat (4). The inner ring of the annular top seat (4) is rotatably provided with an annular frame (5) through a bearing. The annular frame (5) is provided with a slot, and the inner wall of the slot is provided with multiple positioning slots (7). The inner wall of the positioning slots (7) is provided with a slot (8). The top of the decomposition furnace body (1) is provided with a detachable top cover (9), and the annular frame (5) is located inside the top cover (9). The cleaning assembly includes a positioning seat (11), a vertical tube (15), and a connecting pipe (17). The positioning seat (11) is inserted into the empty slot. Multiple positioning blocks (12) are provided on the periphery of the positioning seat (11) and inserted into the positioning slot (7). The vertical tube (15) passes vertically through the positioning seat (11) and is fixedly connected to the positioning seat (11). Multiple nozzles (16) are provided on the outer wall of the vertical tube (15). The connecting pipe (17) is located above the positioning seat (11) and is connected to the top of the vertical tube (15) through a rotary joint.

2. The decomposition furnace for easy cleaning according to claim 1, characterized in that: The upper end of the decomposition furnace body (1) is provided with an annular groove (10), the annular top seat (4) is located in the inner ring of the annular groove (10), and the lower end of the top cover (9) is inserted into the annular groove (10) and threadedly connected to the decomposition furnace body (1).

3. The decomposition furnace for easy cleaning according to claim 2, characterized in that: Multiple actuating blocks are provided on the outer wall of the ring frame (5) and the outer wall of the top cover (9).

4. The decomposition furnace for easy cleaning according to claim 3, characterized in that: A sealing ring (6) is bonded to the upper surface of the ring frame (5).

5. The decomposition furnace for easy cleaning according to claim 4, characterized in that: The positioning block (12) has a cavity (13) inside, and a spring is provided inside the cavity (13). One end of the spring is fixed inside the cavity (13), and the other end is provided with a locking block (14) that cooperates with the locking slot (8). All locking blocks (14) are isosceles trapezoidal structures.

6. The decomposition furnace according to claim 5, characterized in that: A support rod (18) is fixedly installed on one side of the transfer pipe (17), and the support rod (18) is fixed to the upper end of the decomposition furnace body (1) by screws.

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