Feed inlet structure with a material guiding cylinder expansion joint for a heat recovery converter

Abstract

This utility model relates to the field of heat recovery converter technology, and in particular to a feed inlet structure with a guide cylinder and expansion joint based on a heat recovery converter. It includes a guide cylinder body, a water pipe fixedly connected to the outside of the guide cylinder body, a liquid outlet pipe fixedly connected to the outside of the water pipe, a protective sleeve on the outside of the water pipe, an expansion joint feed pipe on the outside of the guide cylinder body, a balancing cylinder installed on the liquid outlet pipe, a stabilizing mechanism on the outside of the protective sleeve, a guide plate installed inside the guide cylinder body, and a stabilizing mechanism including a connecting plate. A rubber rod is rotatably connected inside the connecting plate, a push cover is fixedly connected to the top of the rubber rod, and a snap-fit ​​seat is provided on the outside of the guide cylinder body. In this utility model, efficient cooling is achieved through the water pipe and liquid outlet pipe on the outside of the guide cylinder body, the protective sleeve protects the water pipe, the stabilizing mechanism improves overall stability, and the guide plate ensures smooth feeding, significantly improving durability and operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery converter technology, specifically to a feed inlet structure with expansion joint and guide tube based on a heat recovery converter. Background Technology

[0002] In the industrial production field, the feed cylinder, as a core component of the material conveying system, is widely used in the transfer of granular, powder and fluid materials in industries such as chemical, metallurgical and building materials. Its operational stability, durability and operational safety directly affect the efficiency and cost control of the entire production line. In the overall structure of the feed tube, the expansion joint feed pipe is the core transition component connecting the feed tube body and the upstream feeding equipment (such as storage tanks, conveying pipelines, and cylinder drive components). It not only undertakes the key function of material introduction, but also needs to cope with temperature changes, vibration impacts and pressure fluctuations during material conveying. Its structural design directly affects the feed efficiency, sealing safety and long-term operational stability of the feed tube, and is one of the core links to solve the technical pain points of the feed end of the existing feed tube. A cooling water pipe is installed on the outside of the expansion joint feed pipe. However, the cooling water pipe has no special protective structure (such as a protective sleeve) and is directly exposed to the industrial environment. It is susceptible to damage and blockage caused by material impact, equipment collision or dust corrosion, which can lead to the failure of the cooling system. At the same time, the collision will cause the water pipe to vibrate, and long-term vibration can easily cause it to loosen, further increasing the risk of cooling failure.

[0003] Therefore, a feed inlet structure with an expansion joint and guide tube based on a heat recovery converter is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a feed inlet structure with a guide cylinder and expansion joint based on a heat recovery converter, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The feed inlet structure with expansion joint and guide tube based on heat recovery converter includes a guide tube body, a water pipe fixedly connected to the outside of the guide tube body, a liquid outlet pipe fixedly connected to the outside of the water pipe, a protective sleeve provided on the outside of the water pipe, an expansion joint feed pipe provided on the outside of the guide tube body, a balance cylinder installed on the outside of the liquid outlet pipe, a stabilizing mechanism provided on the outside of the protective sleeve, and a guide plate installed inside the guide tube body. The stabilizing mechanism includes a connecting plate, a rubber rod is rotatably connected inside the connecting plate, a push cover is fixedly connected to the top of the rubber rod, and a snap-fit ​​seat is provided on the outside of the guide cylinder body.

[0006] As a further optimization of this utility model, the connecting plate of the stabilizing mechanism is fixed to the protective sleeve by welding, and the connecting plate is provided with a rotating hole adapted to the rubber rod, and the inner wall of the rotating hole is provided with a wear-resistant coating.

[0007] As a further optimization of this utility model, the following features are provided: the inside of the snap-fit ​​seat is provided with a snap-fit ​​groove that is adapted to the push cover, and a damping block is fixedly connected to the bottom of the rubber rod.

[0008] As a further optimization of this utility model, the guide plate is inclined inside the guide cylinder body, and the thickness of the guide plate gradually increases from the feed end to the discharge end.

[0009] As a further optimization of this utility model, a pressure regulating valve is provided between the liquid outlet pipe and the balance cylinder, and the inner wall of the liquid outlet pipe is provided with an anti-corrosion coating.

[0010] As a further optimization of this utility model, the inner side of the expansion joint feed pipe is fixedly connected with a sealing ring, and the cross-section of the sealing ring is trapezoidal. The expansion joint feed pipe and the guide cylinder body are connected by a flange, and a sealing groove is opened on the surface of the flange, and a graphite sealing ring is provided in the sealing groove.

[0011] As a further optimization of this utility model, both ends of the guide cylinder body are fixedly connected to connecting flanges, and the connecting flanges are provided with positioning holes. The outer side of the connecting flanges is provided with reinforcing ribs, and the reinforcing ribs are fixed to the guide cylinder body and the connecting flanges by welding.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, efficient cooling is achieved through the water pipe and liquid outlet pipe on the outside of the guide cylinder body. The protective sleeve protects the water pipe, the stabilizing mechanism enhances overall stability, and the guide plate ensures smooth feeding, significantly improving durability and operational reliability. The welding and fixing of the connecting plate and the wear-resistant coating of the rotating hole enhance the connection and service life of the stabilizing mechanism. The precise engagement of the snap-fit ​​groove and the shock absorption of the damping block further strengthen stability. The inclined setting, gradual thickness, and high-temperature resistant coating of the guide plate accelerate feeding, reduce deformation, and extend service life. The pressure regulating valve stabilizes and balances the operation of the cylinder. The anti-corrosion coating of the liquid outlet pipe reduces the risk of leakage. The trapezoidal sealing ring of the expansion joint feed pipe and the graphite sealing ring of the flange form a double seal to ensure operational safety. The connecting flanges and reinforcing ribs at both ends of the guide cylinder body improve installation efficiency and connection reliability, and reduce the risk of failure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the outer structure of the water pipe and the liquid outlet pipe of this utility model; Figure 3 This is a sectional view of the side of the guide cylinder body of this utility model; Figure 4 This is a schematic diagram of the outer side of the protective sleeve of this utility model; Figure 5 This is a schematic diagram of the outer structure of the balance cylinder of this utility model; Figure 6 This utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0014] In the diagram: 1. Feed cylinder body; 2. Water pipe; 3. Liquid outlet pipe; 4. Protective sleeve; 5. Expansion joint feed pipe; 6. Balance cylinder; 7. Stabilizing mechanism; 71. Connecting plate; 72. Rubber rod; 73. Push cover; 74. Snap-fit ​​seat; 8. Feed guide plate. Detailed Implementation

[0015] 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.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Please see Figures 1-6 This utility model provides a technical solution: The feed inlet structure with expansion joint and guide tube based on heat recovery converter includes a guide tube body 1, a water pipe 2 fixedly connected to the outside of the guide tube body 1, a liquid outlet pipe 3 fixedly connected to the outside of the water pipe 2, a protective sleeve 4 on the outside of the water pipe 2, an expansion joint feed pipe 5 on the outside of the guide tube body 1, a balance cylinder 6 installed on the outside of the liquid outlet pipe 3, a stabilizing mechanism 7 on the outside of the protective sleeve 4, and a guide plate 8 installed inside the guide tube body 1. The stabilizing mechanism 7 includes a connecting plate 71, a rubber rod 72 is rotatably connected inside the connecting plate 71, a push cover 73 is fixedly connected to the top of the rubber rod 72, and a snap-fit ​​seat 74 is provided on the outside of the guide cylinder body 1.

[0018] It should be noted that: the connecting plate 71 of the stabilizing mechanism 7 is fixed to the protective sleeve 4 by welding. The connecting plate 71 has a rotating hole that matches the rubber rod 72. The inner wall of the rotating hole is provided with a wear-resistant coating. The inside of the snap-fit ​​seat 74 has a snap-fit ​​groove that matches the push cover 73. The bottom of the rubber rod 72 is fixedly connected to a damping block.

[0019] Furthermore: the guide plate 8 is inclined inside the guide cylinder body 1, and the thickness of the guide plate 8 gradually increases from the feed end to the discharge end. The surface of the guide plate 8 is coated with a high-temperature resistant ceramic coating. A pressure regulating valve is provided between the liquid outlet pipe 3 and the balance cylinder 6, and the inner wall of the liquid outlet pipe 3 is provided with an anti-corrosion coating. The anti-corrosion coating is made of polytetrafluoroethylene.

[0020] Specifically: a sealing ring is fixedly connected to the inner side of the expansion joint feed pipe 5, and the cross-section of the sealing ring is trapezoidal. The expansion joint feed pipe 5 is connected to the guide cylinder body 1 through a flange. A sealing groove is opened on the surface of the flange, and a graphite sealing ring is installed in the sealing groove. Both ends of the guide cylinder body 1 are fixedly connected to connecting flanges, and positioning holes are opened on the connecting flanges. Reinforcing ribs are provided on the outer side of the connecting flanges. The reinforcing ribs are fixed to the guide cylinder body 1 and the connecting flanges by welding.

[0021] As a further implementation of this solution, the existing rubber rod 72 can be replaced with a composite elastic rod, which retains the damping and shock absorption function while improving the fatigue strength of the rod and extending its service life. The rotating hole of the connecting plate 71 can be equipped with a self-lubricating bearing, which, together with the original wear-resistant coating, forms "double protection" to reduce the frictional resistance when the rubber rod 72 rotates, making it particularly suitable for the long-term continuous operation of the converter.

[0022] Meanwhile: 3-5mm diameter guide holes are opened on the surface of the guide plate 8. When conveying materials containing dust, the guide holes can guide part of the airflow through, reducing the accumulation of dust on the surface of the guide plate 8. The protective sleeve 4 forms physical protection for the water pipe 2 from the outside, preventing splashed materials and waste residue from hitting the water pipe 2 during the converter operation and causing the pipe to break. The inner heat insulation layer can reduce the impact of high external temperature on the cooling circuit, and at the same time prevent condensation on the outer wall of the water pipe 2.

[0023] Furthermore, the rubber rod 72 utilizes the elasticity of rubber and the shock absorption characteristics of the damping block to absorb the vibration energy generated during the operation of the structure, reducing the impact of vibration on components such as the guide cylinder body 1 and the water pipe 2. The angle can be adjusted by rotation to ensure precise engagement between the push cover 73 and the snap-fit ​​seat 74. The expansion joint feed pipe 5 adopts a corrugated expansion joint structure, made of 310S heat-resistant stainless steel, with a fluororubber sealing ring fixedly connected to the inside. A 10mm deep sealing groove is opened on the flange surface connected to the guide cylinder body 1, and a graphite sealing ring is placed in the groove as the inlet for material to enter the guide cylinder body 1. The corrugated structure can absorb thermal expansion and contraction displacement, avoiding structural damage due to forced deformation. The trapezoidal sealing ring and the graphite sealing ring form a double seal to prevent high-temperature gas and dust from leaking from the connection, ensuring a safe working environment.

[0024] Work process: When the expansion joint feed port structure with guide tube based on the heat recovery converter is running, it first receives the material to be transported to the heat recovery converter through the expansion joint feed pipe 5. The trapezoidal section sealing ring on the inner side of the expansion joint feed pipe 5 cooperates with the graphite sealing ring in the flange sealing groove to effectively block the entry of external impurities and prevent the leakage of internal high temperature gas or dust, ensuring the sealing of the feeding process and the safety of the working environment. After the material enters, it flows along the inside of the guide cylinder body 1. At this time, the guide plate 8, which is in an inclined state, guides the material to move in an orderly manner by means of the inclined angle, avoiding material accumulation. Its thickness, which gradually increases from the feed end to the discharge end, can enhance the bearing capacity against the impact force of the material flow. The high-temperature resistant ceramic coating sprayed on the surface can resist the high-temperature environment around the heat recovery converter, reduce the oxidation and corrosion of the guide plate 8 by high temperature, and further ensure smooth material conveying. During the operation of the material conveying and heat recovery converter, the water pipe 2 on the outside of the feed cylinder body 1 continuously supplies cooling medium. Through heat exchange, the feed cylinder body 1 is cooled down to prevent damage caused by thermal expansion and contraction due to high temperature. The cooled medium is discharged through the liquid outlet pipe 3. The pressure regulating valve between the liquid outlet pipe 3 and the balance cylinder 6 can flexibly adjust the liquid pressure in the pipe to ensure the stable operation of the balance cylinder 6 to maintain the pressure balance of the water pipe 2 cooling system. At the same time, the polytetrafluoroethylene anti-corrosion coating on the inner wall of the liquid outlet pipe 3 can resist the erosion of corrosive components in the cooling medium and extend the service life of the liquid outlet pipe 3. The protective sleeve 4 on the outside of the water pipe 2 can provide physical protection for the water pipe 2, reducing the damage to the water pipe 2 caused by external impacts. The stabilizing mechanism 7 on the outside of the protective sleeve 4 also plays a role. The connecting plate 71 is firmly connected to the protective sleeve 4 by welding. Its internal rotating hole provides stable rotation support for the rubber rod 72. The push cover 73 on the top of the rubber rod 72 is precisely engaged with the internal locking groove of the locking seat 74 on the outside of the guide cylinder body 1. Together with the damping block at the bottom of the rubber rod 72, it absorbs the impact force generated by structural vibration, effectively improving the stability of the overall structure during operation and preventing the components from loosening due to vibration. In addition, the connecting flanges with positioning holes at both ends of the feed cylinder body 1 facilitate precise docking with other components of the heat recovery converter, improving installation efficiency. The reinforcing ribs welded and fixed to the outside of the flange and the feed cylinder body 1 and the flange enhance the structural strength of the connection, preventing the flange from deforming and breaking due to long-term stress or vibration. Ultimately, this ensures that the entire feed inlet structure can stably and efficiently complete the material conveying operation under the high temperature and vibration conditions of the heat recovery converter.

[0025] 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 feed inlet structure with expansion joint and guide cylinder based on a heat recovery converter, comprising a guide cylinder body (1), characterized in that: A water pipe (2) is fixedly connected to the outside of the guide cylinder body (1), a liquid outlet pipe (3) is fixedly connected to the outside of the water pipe (2), a protective sleeve (4) is provided on the outside of the water pipe (2), an expansion joint feed pipe (5) is provided on the outside of the guide cylinder body (1), a balance cylinder (6) is installed on the outside of the liquid outlet pipe (3), a stabilizing mechanism (7) is provided on the outside of the protective sleeve (4), and a guide plate (8) is installed inside the guide cylinder body (1). The stabilizing mechanism (7) includes a connecting plate (71), a rubber rod (72) is rotatably connected inside the connecting plate (71), a push cover (73) is fixedly connected to the top of the rubber rod (72), and a snap-fit ​​seat (74) is provided on the outside of the guide cylinder body (1).

2. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: The connecting plate (71) of the stabilizing mechanism (7) is fixed to the protective sleeve (4) by welding. The connecting plate (71) has a rotating hole that matches the rubber rod (72), and the inner wall of the rotating hole is provided with a wear-resistant coating.

3. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: The inside of the snap-fit ​​seat (74) is provided with a snap-fit ​​groove that is compatible with the push cover (73), and the bottom of the rubber rod (72) is fixedly connected with a damping block.

4. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: The guide plate (8) is inclined inside the guide cylinder body (1), and the thickness of the guide plate (8) gradually increases from the feed end to the discharge end.

5. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: A pressure regulating valve is provided between the liquid outlet pipe (3) and the balance cylinder (6), and the inner wall of the liquid outlet pipe (3) is provided with an anti-corrosion coating.

6. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: The inner side of the expansion joint feed pipe (5) is fixedly connected with a sealing ring, and the cross section of the sealing ring is trapezoidal. The expansion joint feed pipe (5) and the guide cylinder body (1) are connected by a flange. A sealing groove is opened on the surface of the flange, and a graphite sealing ring is provided in the sealing groove.

7. The feed inlet structure with expansion joint and guide tube based on a heat recovery converter according to claim 1, characterized in that: Both ends of the feed cylinder body (1) are fixedly connected with connecting flanges, and the connecting flanges are provided with positioning holes. The outer side of the connecting flanges is provided with reinforcing ribs, and the reinforcing ribs are fixed to the feed cylinder body (1) and the connecting flanges by welding.

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