A spray gun for co-firing sludge in a waste incinerator

Abstract

This utility model discloses a spray gun for co-firing sludge in a waste incinerator, comprising: a mixing device, the outer wall of which is fixedly connected to a spray gun structure by bolts; the mixing device includes a fixed flange, and a mixing pipe is fixedly connected to the outer wall of the top of the fixed flange. This utility model relates to the field of sludge co-firing technology in incinerators. The mixing device and spray gun structure, through a high-pressure sludge pipe connected by a compressed air pipe, a leachate pipe, and a fixed flange, allow sludge, compressed air, and leachate to enter the mixing pipe precisely from independent paths, fully mix in the mixing pipe, and form a uniform mixture. The interior of the mixing pipe is connected to the interior of the spray gun pipe by bolts between the mounting flange and the connecting flange. After passing through the spray gun pipe, the mixture enters the incinerator furnace in an atomized state under the action of the compressed nozzle. The atomization treatment greatly increases the contact area between the sludge and the high-temperature environment inside the incinerator, enabling the sludge to burn more quickly and completely.

Description

Technical Field

[0001] This utility model relates to the field of sludge co-firing technology in incinerators, specifically a spray gun for co-firing sludge in waste incinerators. Background Technology

[0002] With the acceleration of urbanization and the expansion of sewage treatment scale, the amount of sludge generated has increased dramatically. Sludge co-firing in waste incinerators is a common sludge disposal method. It has been widely used because it can reduce the volume of sludge, make it harmless and partially recover resources due to the high-temperature incineration. However, existing waste incinerator sludge co-firing equipment has many shortcomings in actual operation.

[0003] In traditional waste incinerators, sludge is fed into the furnace along with the waste, which can easily lead to incomplete combustion of the sludge. Uneven material mixing can also result in incomplete combustion of the sludge during the incineration process, which not only reduces incineration efficiency but also easily produces harmful pollutants, affecting the incineration treatment effect and environmental safety. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a spray gun for co-firing sludge in a waste incinerator, which solves the problem that traditional waste incinerators often result in incomplete sludge combustion.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A spray gun for co-firing sludge in a waste incinerator includes: a mixing device, the outer wall of which is bolted to a spray gun structure; the mixing device includes a fixed flange, a mixing pipe is fixedly connected to the outer wall of the top of the fixed flange, and a pressure transmitter is fixedly connected to the inner wall of the mixing pipe. The pressure transmitter is a commercially available KAP chemical plant pressure transmitter. KAP uses a flat diaphragm sensor core to sense pressure. When the measured pressure acts on the flat diaphragm, the flat diaphragm will produce a slight deformation. This deformation will cause a change in the resistance value on the silicon diaphragm. When the input pressure exceeds the rated pressure range of the transmitter, the sensor output signal will be converted into an electrical signal. Based on this pressure, it is determined whether the spray gun is blocked and the delivery rate is adjusted accordingly. A compressed air pipe and a leachate pipe are fixedly connected to the inner wall of the mixing pipe, and a mounting flange is fixedly connected to the outer wall of the mixing pipe on the side away from the fixed flange.

[0009] Preferably, the interiors of the compressed air pipe and the leachate pipe are connected to the inner wall of the mixing pipe, with compressed air entering the mixing pipe through the compressed air pipe and leachate entering through the leachate pipe.

[0010] Preferably, the spray gun structure includes a spray gun tube, a connecting flange is fixedly connected to the outer wall of the spray gun tube, and a compression nozzle is fixedly connected to the outer wall of the spray gun tube on the side away from the connecting flange.

[0011] Preferably, the interior of the compression nozzle is connected to the interior of the spray gun tube. Under the action of the compression nozzle, the mixture is compressed and sprayed out, entering the furnace chamber of the incinerator in an atomized state.

[0012] Preferably, the mounting flange is fixedly connected to the connecting flange by bolts, and the interior of the mixing pipe is in communication with the interior of the spray gun pipe. Since the mounting flange is fixedly connected to the connecting flange by bolts, and the interior of the mixing pipe is in communication with the interior of the spray gun pipe, the material can smoothly enter the spray gun pipe of the spray gun structure.

[0013] (III) Beneficial Effects

[0014] This utility model provides a spray gun for co-firing sludge in a waste incinerator. It has the following beneficial effects:

[0015] (i) The mixing device, through a compressed air pipe, a leachate pipe and a high-pressure sludge pipe connected by a fixed flange, allows sludge, compressed air and leachate to enter the mixing pipe precisely from independent paths, and fully mix in the mixing pipe to form a uniform mixture. This uniform mixing state provides a stable material basis for subsequent incineration, effectively avoiding problems such as incomplete combustion and low combustion efficiency caused by uneven material mixing, and ensuring the efficient operation of the waste incinerator.

[0016] (ii) The spray gun structure is connected to the mounting flange and the connecting flange by bolts, so that the inside of the mixing pipe is connected to the inside of the spray gun pipe. After the mixed material passes through the spray gun pipe, it enters the incinerator furnace in an atomized state under the action of the compression nozzle. The atomization treatment greatly increases the contact area between the sludge and the high temperature environment inside the incinerator, so that the sludge can burn faster and more completely, significantly improving the sludge treatment efficiency. At the same time, by adjusting the amount of sludge injected, the furnace temperature can be effectively controlled and maintained within the optimal operating temperature range, ensuring the stable operation of the waste incinerator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the spray gun structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting flange of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the mixing tube of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixed flange of this utility model.

[0022] In the diagram: 1. Mixing device; 11. Fixed flange; 12. Pressure transmitter; 13. Compressed air pipe; 14. Mixing pipe; 15. Leachate pipe; 16. Mounting flange; 2. Spray gun structure; 21. Spray gun pipe; 22. Connecting flange; 23. Compressor nozzle. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a spray gun for co-firing sludge in a waste incinerator, comprising: a mixing device 1, with a spray gun structure 2 fixedly connected to the outer wall of the mixing device 1 by bolts; the mixing device 1 includes a fixed flange 11, with a mixing pipe 14 fixedly connected to the outer wall of the top of the fixed flange 11, and a pressure transmitter 12 fixedly connected to the inner wall of the mixing pipe 14. The pressure transmitter 12 is a commercially available KAP03 chemical plant pressure transmitter. The KAP03 uses a flat diaphragm structure sensor core to sense pressure. When the measured pressure acts on the flat diaphragm, the flat diaphragm will produce a slight deformation. This deformation will cause a change in the resistance value on the silicon diaphragm. When the input pressure exceeds the rated pressure range of the transmitter, the output signal of the sensor will be converted into an electrical signal. Based on this pressure, it is determined whether the spray gun is blocked, and the delivery volume is adjusted accordingly. A compressed air pipe 13 and a leachate pipe 15 are fixedly connected to the inner wall of the mixing pipe 14, and an installation flange 16 is fixedly connected to the outer wall of the mixing pipe 14 on the side away from the fixed flange 11.

[0025] The interiors of the compressed air pipe 13 and the leachate pipe 15 are connected to the inner wall of the mixing pipe 14. Compressed air enters the mixing pipe 14 through the compressed air pipe 13, while leachate enters through the leachate pipe 15.

[0026] The spray gun structure 2 includes a spray gun tube 21, a connecting flange 22 is fixedly connected to the outer wall of the spray gun tube 21, and a compression nozzle 23 is fixedly connected to the outer wall of the spray gun tube 21 on the side away from the connecting flange 22.

[0027] The interior of the compression nozzle 23 is connected to the interior of the spray gun tube 21. Under the action of the compression nozzle 23, the mixture will be compressed and sprayed out, and enter the furnace of the incinerator in an atomized state.

[0028] The mounting flange 16 is fixedly connected to the connecting flange 22 by bolts. The interior of the mixing pipe 14 is connected to the interior of the spray gun pipe 21. Since the mounting flange 16 is fixedly connected to the connecting flange 22 by bolts, and the interior of the mixing pipe 14 is connected to the interior of the spray gun pipe 21, the material can smoothly enter the spray gun pipe 21 of the spray gun structure 2.

[0029] In use, in the mixing device 1, sludge, compressed air and leachate enter the mixing chamber of mixing pipe 14 from different paths, and are then compressed and sprayed out through spray gun structure 2, entering the furnace of the incinerator in an atomized state.

[0030] First, the fixed flange 11 is connected to the high-pressure sludge pipe by bolts. The high-pressure sludge enters the mixing pipe 14 through the high-pressure sludge pipe. Compressed air enters through the compressed air pipe 13, and leachate enters through the leachate pipe 15. When they enter the mixing pipe 14, they mix with each other inside to form a uniform mixture.

[0031] The mixed material is fixedly connected to the connecting flange 22 by bolts through the mounting flange 16, and the interior of the mixing pipe 14 is connected to the interior of the spray gun pipe 21. Therefore, the material can smoothly enter the spray gun pipe 21 of the spray gun structure 2. A compression nozzle 23 is fixedly connected to the outer wall of the spray gun pipe 21 away from the connecting flange 22, and the interior of the compression nozzle 23 is connected to the interior of the spray gun pipe 21. Under the action of the compression nozzle 23, the mixed material is compressed and sprayed out, entering the furnace of the incinerator in an atomized state. This atomization treatment method makes it easier for the sludge to be processed in the incinerator, increases the contact area between the sludge and the high-temperature environment in the incinerator, and improves the processing efficiency. On the other hand, by adjusting the amount of sludge injected, the furnace temperature can be effectively regulated and maintained within a suitable working temperature range, ensuring the stable operation and efficient processing of the waste incinerator.

[0032] A pressure transmitter 12 is installed on the inner wall of the mixing tube 14. It is a commercially available KAP03 chemical plant pressure transmitter. The transmitter uses a flat diaphragm sensor core to sense pressure. When the material in the mixing tube 14 exerts pressure on the flat diaphragm, the flat diaphragm will undergo slight deformation, which will cause the resistance value on the silicon diaphragm to change. Once the input pressure exceeds the rated pressure range of the transmitter, the sensor output signal will be converted into an electrical signal. Based on the detected pressure, it is determined whether the spray gun structure 2 is blocked. The system can adjust the conveying amount of each material to ensure the stability and efficiency of the mixing process.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray gun for co-firing sludge in a waste incinerator, characterized in that, include: A mixing device (1) is provided, wherein a spray gun structure (2) is fixedly connected to the outer wall of the mixing device (1) by bolts. The mixing device (1) includes a fixed flange (11), a mixing pipe (14) is fixedly connected to the outer wall of the top of the fixed flange (11), a pressure transmitter (12) is fixedly connected to the inner wall of the mixing pipe (14), a compressed air pipe (13) and a permeate pipe (15) are fixedly connected to the inner wall of the mixing pipe (14), and an installation flange (16) is fixedly connected to the outer wall of the mixing pipe (14) on the side away from the fixed flange (11).

2. The spray gun for co-firing sludge in a waste incinerator according to claim 1, characterized in that: The interior of the compressed air pipe (13) and the permeate pipe (15) are connected to the inner wall of the mixing pipe (14).

3. The spray gun for co-firing sludge in a waste incinerator according to claim 1, characterized in that: The spray gun structure (2) includes a spray gun tube (21), a connecting flange (22) is fixedly connected to the outer wall of the spray gun tube (21), and a compression nozzle (23) is fixedly connected to the outer wall of the spray gun tube (21) away from the connecting flange (22).

4. The spray gun for co-firing sludge in a waste incinerator according to claim 3, characterized in that: The interior of the compression nozzle (23) is connected to the interior of the spray gun tube (21).

5. A spray gun for co-firing sludge in a waste incinerator according to claim 1, characterized in that: The mounting flange (16) is fixedly connected to the connecting flange (22) by bolts, and the interior of the mixing pipe (14) is connected to the interior of the spray gun pipe (21).

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