Novel water-cooled sludge-injecting tube

By using high-temperature resistant materials for the inner and outer layers and a spiral cooling water circulation system, the problem of insufficient cooling in traditional sludge inlet tubes has been solved, achieving long service life and safe and stable operation of the equipment.

CN224593290UActive Publication Date: 2026-08-04XUZHOU SHENGYUAN ECOLOGICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU SHENGYUAN ECOLOGICAL TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional sludge inlet tubes lack an effective cooling mechanism, leading to accelerated material aging and the risk of material adhesion and blockage, making it difficult to ensure the long-term stable operation of the equipment.

Method used

The furnace tubes are made of high-temperature resistant materials with a double-layer structure. The inner layer has a spiral-designed water inlet and outlet pipe for circulating cooling water, which is combined with the air inlet pipe for high-pressure air purging to achieve uniform cooling and prevent clogging.

Benefits of technology

It significantly extends equipment lifespan, reduces the risk of high-temperature deformation and material adhesion, and improves operational safety and adaptability.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a novel water -cooling sludge into stove pipe, include: furnace pipe, the outer wall symmetry fixed connection of furnace pipe has flange, the inner wall fixed connection of furnace pipe side has the water inlet pipe, the inner wall fixed connection of furnace pipe far away water inlet pipe one side has the water outlet pipe, the utility model relates to into stove pipe technical field, this furnace pipe, through the flexible design of metal hose can adjust the furnace angle flexibly, effectively adapt the installation deviation of senior equipment and furnace pipe, avoid the conveying jam of rigid connection, through the cooling water circulation system of furnace pipe helical inner layer guide, can pass through the ball valve precision regulation of water inlet pipe cooling water flow, realize the even, controllable cooling of furnace pipe, avoid because close combustion furnace and long -term in high temperature environment, the service life of equipment is prolonged significantly, at the same time, the stable cooling effect also reduced the equipment deformation or material adhesion risk of high temperature.
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Description

Technical Field

[0001] This utility model relates to the field of furnace inlet pipe technology, specifically a novel water-cooled sludge inlet pipe. Background Technology

[0002] In the field of sludge treatment, it is a common process to transport sludge to a combustion furnace for incineration through a sludge inlet pipe. However, traditional sludge inlet pipes have some shortcomings in practical applications and are difficult to meet the requirements of efficient and stable treatment.

[0003] The end of the inlet tube closest to the combustion furnace is in a high-temperature environment for a long time. Traditional equipment lacks an effective cooling mechanism. High temperature not only accelerates the aging of the inlet tube material, but may also cause the sludge inside the tube to dry and stick to the tube wall, further increasing the risk of blockage and making it difficult to ensure the long-term stable operation of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a novel water-cooled sludge inlet pipe, which solves the problem that the lack of an effective cooling mechanism in traditional equipment leads to accelerated aging of the inlet pipe material.

[0006] (II) Technical Solution

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

[0008] A novel water-cooled sludge inlet pipe includes: a furnace pipe, with flanges symmetrically fixedly connected to the outer wall of the furnace pipe; a water inlet pipe fixedly connected to the inner wall of the side of the furnace pipe; a water outlet pipe fixedly connected to the inner wall of the side of the furnace pipe away from the water inlet pipe; and an air inlet pipe fixedly connected to the inner wall of the side of the furnace pipe.

[0009] Preferably, the interior of the water inlet pipe, water outlet pipe, and air inlet pipe is connected to the interior of the furnace tube. The furnace tube is made of high-temperature resistant material and has a two-layer structure with an inner spiral shape to ensure that the cooling water circulating in the water inlet and outlet pipes can flow throughout the equipment for uniform cooling. The furnace tube has a central cavity for material feeding. The water inlet pipe is externally connected to a ball valve to adjust the flow rate of the cooling water for controllable cooling. The air inlet pipe is connected to a compressed air interface. When the equipment is not in operation, high-pressure air is input to clean the interior and prevent the material from drying out and causing blockage inside the furnace tube.

[0010] Preferably, a metal hose is fixedly connected to the outer wall of the flange by bolts. The metal hose is connected to the upper feeding equipment to facilitate adjustment of the furnace inlet angle.

[0011] Preferably, the flange on the side away from the metal hose is fixedly connected to a fixing sleeve by bolts.

[0012] Preferably, the inner wall of the fixing sleeve is slidably connected to the outer wall of the furnace tube. The fixing sleeve is connected to the furnace tube through a flange, and the other end is fixed to the opening of the combustion furnace by refractory castable. Its size can be cut according to the length required for entering the furnace.

[0013] (III) Beneficial Effects

[0014] This utility model provides a novel water-cooled sludge inlet pipe. It has the following beneficial effects:

[0015] (i) The furnace tube, through the flexible design of the metal hose, can flexibly adjust the furnace entry angle, effectively adapt to the installation deviation of the upper equipment and the furnace tube, avoid the conveying jam caused by rigid connection, and the fixed sleeve can be cut to the required size according to the furnace entry length. It is fixed to the opening of the combustion furnace by refractory castable, which not only ensures the structural stability, but also adapts to the working conditions of different combustion furnaces, greatly improving the scene adaptability of the equipment.

[0016] (ii) The cooling water circulation system guided by the spiral inner layer of the furnace tube can be precisely adjusted by the ball valve of the water inlet pipe to achieve uniform and controllable cooling of the furnace tube. This avoids the furnace tube being in a high-temperature environment for a long time due to its proximity to the combustion furnace, which significantly extends the service life of the equipment. At the same time, the stable cooling effect also reduces the risk of equipment deformation or material adhesion caused by high temperature, thus improving operational safety. 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 top view of the structure of this utility model;

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

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

[0021] In the diagram: 1. Furnace tube; 2. Flange; 3. Water inlet pipe; 4. Water outlet pipe; 5. Air inlet pipe; 6. Metal flexible hose; 7. Fixing sleeve. 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 Figure 1-4 This utility model provides a technical solution: a novel water-cooled sludge inlet pipe, comprising: a furnace pipe 1, with flanges 2 symmetrically fixedly connected to the outer wall of the furnace pipe 1; a water inlet pipe 3 fixedly connected to the inner wall of the side of the furnace pipe 1; a water outlet pipe 4 fixedly connected to the inner wall of the side of the furnace pipe 1 away from the water inlet pipe 3; and an air inlet pipe 5 fixedly connected to the inner wall of the side of the furnace pipe 1.

[0024] The interiors of the water inlet pipe 3, water outlet pipe 4, and air inlet pipe 5 are connected to the interior of the furnace tube 1. The furnace tube 1 is made of high-temperature resistant material and has a two-layer structure with an inner and outer spiral shape to ensure that the cooling water circulating in the water inlet pipe 3 and water outlet pipe 4 can flow throughout the equipment and cool it evenly. The central cavity of the furnace tube 1 is used for material feeding. The water inlet pipe 3 is connected to a ball valve to adjust the flow rate of the cooling water to achieve controllable cooling. The air inlet pipe 5 is connected to a compressed air interface. When the equipment is not in operation, high-pressure air is input to achieve the purpose of cleaning and prevent the material from drying out and causing blockage inside the furnace tube.

[0025] A metal hose 6 is fixedly connected to the outer wall of flange 2 by bolts. The metal hose 6 is connected to the upper feeding equipment to facilitate adjustment of the furnace inlet angle.

[0026] The flange 2 on the side away from the metal hose 6 is fixedly connected to the fixing sleeve 7 by bolts.

[0027] The inner wall of the fixed sleeve 7 is slidably connected to the outer wall of the furnace tube 1. The fixed sleeve 7 is connected to the furnace tube 1 through the flange 2, and the other end is fixed to the opening of the combustion furnace through refractory castable. Its size can be cut according to the length requirement of the furnace.

[0028] In use, the central cavity of the furnace tube 1 serves as the core conveying channel, undertaking the task of conveying sludge from the upper-level equipment to the combustion furnace. The metal hose 6 is connected to the furnace tube 1 through the flange 2. With its own flexibility, the angle of entry into the furnace can be adjusted to adapt to the installation deviation between the upper-level equipment and the furnace tube 1, ensuring a smooth sludge conveying path. The flange 2 on the side away from the metal hose 6 is connected to the fixing sleeve 7. The other end of the fixing sleeve 7 is fixed to the opening of the combustion furnace through refractory castable, providing stable support for the overall structure. It can also be cut to the required size according to the length of entry into the furnace, flexibly adapting to different working conditions.

[0029] The furnace tube 1 adopts a two-layer structure made of high-temperature resistant material. The inner layer has a spiral design. The water inlet pipe 3 is connected to the external cooling water system. The ball valve on the outside can adjust the cooling water flow. After the cooling water enters the gap between the two layers of the furnace tube 1 through the water inlet pipe 3, it flows evenly through the inside of the equipment under the guidance of the spiral inner layer, fully absorbing the heat generated by the furnace tube 1 due to its proximity to the combustion furnace. The cooled water after absorbing heat is discharged through the water outlet pipe 4, forming a complete circulating cooling loop, realizing controllable cooling of the furnace tube 1, and avoiding damage to the equipment caused by the high-temperature environment.

[0030] The air inlet pipe 5 is connected to the compressed air interface. When the upper equipment stops working, high-pressure air enters the furnace tube 1 through the air inlet pipe 5 to clean the sludge remaining in the central cavity, prevent the material from drying and clumping and blocking the channel, and ensure the continuity of subsequent work. At the same time, the fixed sleeve 7 is slidably connected to the outer wall of the furnace tube 1. Combined with the detachable design of the flange 2, it facilitates the installation, inspection and maintenance of the equipment.

[0031] 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.

[0032] 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 new water-cooled sludge-injecting lance, characterized in that include: Furnace tube (1), the outer wall of which is symmetrically fixedly connected with flanges (2); A water inlet pipe (3) is fixedly connected to the inner wall of the side of the furnace tube (1), a water outlet pipe (4) is fixedly connected to the inner wall of the side of the furnace tube (1) away from the water inlet pipe (3), and an air inlet pipe (5) is fixedly connected to the inner wall of the side of the furnace tube (1).

2. The novel water cooled sludge-injecting tube according to claim 1, characterized in that: The interiors of the water inlet pipe (3), water outlet pipe (4) and air inlet pipe (5) are connected to the interior of the furnace tube (1).

3. The novel water cooled sludge-injecting lance according to claim 1, characterized in that: The outer wall of the flange (2) is fixedly connected to a metal hose (6) by bolts.

4. The novel water cooled sludge-injecting tube according to claim 3, characterized in that: The flange (2) on the side away from the metal hose (6) is fixedly connected to a fixing sleeve (7) by bolts.

5. The novel water cooled sludge-injecting tube according to claim 4, characterized in that: The inner wall of the fixed sleeve (7) is slidably connected to the outer wall of the furnace tube (1).