Nodular cast iron pipe cooling device
By combining the chain mechanism that drives the rotation of the ductile iron pipe with the sprayer, the problems of uneven cooling speed and low efficiency are solved, achieving a uniform and efficient cooling effect, which is suitable for ductile iron pipe processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXING CAST PIPE FUKANG ENERGY
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-12
AI Technical Summary
The existing ductile iron pipe cooling process suffers from uneven cooling rate and low cooling efficiency, especially during spray cooling, where different parts of the pipe cool at different rates, affecting the pipe quality.
A cooling device for ductile iron pipes was designed. A chain mechanism drives the pipe to rotate during the spraying process. The combination of the sprayer and the support platform ensures uniform cooling of the pipe during transportation. The protrusions on the chain and the support section design enable the pipe to roll and rotate slowly. Combined with the atomizing nozzles of the sprayer, the cooling uniformity and efficiency are improved.
It achieves uniform cooling of ductile iron pipes during the spray cooling process, improves cooling efficiency, ensures pipe quality, and supports simultaneous cooling of multiple pipes, resulting in energy saving and high efficiency.
Smart Images
Figure CN224227142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ductile iron pipe processing technology, and in particular to a ductile iron pipe cooling device. Background Technology
[0002] During the processing of ductile iron pipes, after the pipes are annealed in an annealing furnace, they need to be cooled by spraying. In existing technology, the pipes are generally transported by heavy chains. The pipes do not rotate in the spraying chamber, and the sprayers are generally located above the pipes. This results in uneven cooling rates in different parts of the pipes, affecting the quality of the pipes.
[0003] The patent with publication number CN220445014U discloses a structure that allows the pipe to rotate during spraying. It uses two rollers to make the pipe rotate. Although this solves the problem of uneven cooling speed, there is only one set of rollers, and each pipe needs to be placed on the rollers, which makes the cooling efficiency slow. In addition, an extra motor is needed to drive the rollers to rotate, which is not conducive to energy saving. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a cooling device for ductile iron pipes.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A cooling device for ductile iron pipes includes a sprayer and a pipe conveying device. The pipe conveying device includes a base frame, a support platform, and a chain mechanism. The support platform is mounted on the top of the base frame, and the distance of the support platform from the ground gradually decreases along a first horizontal direction. The sprayer is fixedly installed above the support platform. The chain mechanism has two parallel chains capable of automatic rotation. The two chains are arranged on both sides of the support platform along a second direction that is horizontal and perpendicular to the first direction. Each chain has a support section parallel to the inclination direction of the support platform, which is located below the support platform. A plurality of protrusions are spaced apart on the outer ring of the chain. When the protrusions move to the support section, they protrude from the support platform.
[0007] Furthermore, the chain mechanism also includes a pair of first mounting seats, a pair of second mounting seats, a first rotating shaft, a second rotating shaft, a pair of first sprockets, a pair of second sprockets, and a power motor. The pair of first mounting seats and the pair of second mounting seats are spaced apart on both sides of the support platform along the first direction. The first rotating shaft is rotatably mounted between the pair of first mounting seats. The pair of first sprockets are coaxially fixed on the first rotating shaft. The second rotating shaft is rotatably mounted between the pair of second mounting seats. The pair of second sprockets are coaxially fixed on the second rotating shaft. The opposing first sprockets and second sprockets are connected by the chain drive. The main shaft of the power motor is drive-connected to the first rotating shaft.
[0008] Furthermore, the sprayer includes a mounting frame and a plurality of spray pipes. The mounting frame is disposed above the support platform, and support columns are connected to the four corners of the mounting frame. The plurality of spray pipes are arranged at intervals along the inclined direction of the support platform at the bottom of the mounting frame. The spray pipes extend along the second direction, and a plurality of atomizing nozzles are arranged at intervals along the second direction at the bottom of the spray pipes.
[0009] Furthermore, the support platform is composed of several steel bars, which are spaced apart on the top of the base frame along the second direction, and the distance between the steel bars and the ground gradually decreases along the first direction.
[0010] The beneficial effects of this utility model are as follows: the pipe can roll from the high side to the low side of the support platform, the protrusion on the chain can block the pipe, and when the chain starts to run, the pipe can slowly roll downwards, which not only allows the pipe to have sufficient spraying time, but also enables the pipe to rotate during the spraying process, ensuring the uniformity of cooling, and multiple pipes can be cooled at the same time, resulting in high cooling efficiency. Attached Figure Description
[0011] Figure 1 This is a side view of an embodiment of the present utility model;
[0012] Figure 2 This is a perspective view of the pipeline conveying device in an embodiment of this utility model.
[0013] Explanation of the attached drawing numbers: 1. Base frame, 11. Steel bar, 2. Mounting frame, 21. Support column, 3. Spray pipe, 31. Atomizing nozzle, 4. Chain, 41. Protrusion, 5. First mounting base, 6. Second mounting base, 7. First rotating shaft, 8. Second rotating shaft, 9. First sprocket, 10. Second sprocket, 110. Motor, 120. Pipe. Detailed Implementation
[0014] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0015] like Figures 1-2 As shown, a ductile iron pipe cooling device includes a sprayer and a pipeline conveying device. The pipeline conveying device includes a base frame 1, several steel bars 11, and a chain mechanism. Several steel bars 11 are installed on the top of the base frame 1, and the steel bars 11 are arranged at intervals in the left-right direction, extending from back to front. The distance of the steel bars 11 from the ground gradually decreases from back to front. The sprayer includes a mounting frame 2 and several spray pipes 3. The mounting frame 2 is set above the steel bars 11, and each of the four corners of the mounting frame 2 is connected to a supporting column 21. Several spray pipes 3 are arranged at intervals at the bottom of the mounting frame 2 along the extension direction of the steel bars 11. Each spray pipe 3 is connected to a water supply source (not shown in the figure), and the spray pipes 3 extend in the left-right direction. Several atomizing nozzles 31 are arranged at intervals at the bottom of the spray pipes 3 in the left-right direction. The chain mechanism includes a pair of chains 4, a pair of first mounting seats 5, a pair of second mounting seats 6, and a first... A rotating shaft 7, a second rotating shaft 8, a pair of first sprockets 9, a pair of second sprockets 10, and a power motor 110 are provided. A pair of first mounting seats 5 and a pair of second mounting seats 6 are spaced apart on both sides of the base frame 1 in the front-rear direction. The first rotating shaft 7 is rotatably mounted between the pair of first mounting seats 5. The pair of first sprockets 9 are coaxially fixed on the first rotating shaft 7. The second rotating shaft 8 is rotatably mounted between the pair of second mounting seats 6. The pair of second sprockets 10 are coaxially fixed on the second rotating shaft 8. The opposing first sprockets 9 and second sprockets 10 are connected by a chain 4. The main shaft of the power motor 110 is connected to the first rotating shaft 7. The pair of chains 4 are located on the left and right sides of the base frame 1. The chain 4 has a support section parallel to the steel bar 11. The support section is located below the steel bar 11. Several protrusions 41 are spaced apart on the outer ring of the chain 4. When the protrusions 41 move to the support section, the protrusions 41 protrude from the steel bar 11.
[0016] In practical applications, the pipe 120 is rolled from the high side to the low side by several steel bars 11. The protrusions 41 on the chain 4 can block the pipe 120. The chain 4 is rotated by the motor 110, so that the pipe 120 can slowly roll downwards. This allows the pipe 120 to have sufficient spraying time and enables the pipe 120 to rotate during the spraying process, ensuring the quality of the pipe 120. In addition, multiple pipes 120 can be cooled at the same time, resulting in high cooling efficiency.
[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cooling device for ductile iron pipes, comprising a sprayer and a pipeline conveying device, characterized in that, The pipeline conveying device includes a base frame (1), a support platform, and a chain mechanism. The support platform is installed on the top of the base frame (1). The distance of the support platform from the ground gradually decreases along a first horizontal direction. The sprayer is fixedly installed above the support platform. The chain mechanism has two parallel chains (4) that can rotate automatically. The two chains (4) are arranged on both sides of the support platform along a second direction that is horizontal and perpendicular to the first direction. Each chain (4) has a support section that is parallel to the inclination direction of the support platform. The support section is located below the support platform. Several protrusions (41) are spaced apart on the outer ring of the chain (4). When the protrusions (41) move to the support section, the protrusions (41) protrude from the support platform.
2. The ductile iron pipe cooling device according to claim 1, characterized in that, The chain mechanism further includes a pair of first mounting seats (5), a pair of second mounting seats (6), a first rotating shaft (7), a second rotating shaft (8), a pair of first sprockets (9), a pair of second sprockets (10), and a power motor (110). The pair of first mounting seats (5) and the pair of second mounting seats (6) are spaced apart on both sides of the support platform along the first direction. The first rotating shaft (7) is rotatably mounted between the pair of first mounting seats (5). The pair of first sprockets (9) are coaxially fixed on the first rotating shaft (7). The second rotating shaft (8) is rotatably mounted between the pair of second mounting seats (6). The pair of second sprockets (10) are coaxially fixed on the second rotating shaft (8). The opposing first sprockets (9) and second sprockets (10) are connected by the chain (4). The main shaft of the power motor (110) is connected by the first rotating shaft (7).
3. The ductile iron pipe cooling device according to claim 1, characterized in that, The sprayer includes a mounting frame (2) and several spray pipes (3). The mounting frame (2) is located above the support platform. Support columns (21) are connected to the four corners of the mounting frame (2). Several spray pipes (3) are arranged at intervals along the inclined direction of the support platform at the bottom of the mounting frame (2). The spray pipes (3) extend along the second direction. Several atomizing nozzles (31) are arranged at intervals along the second direction at the bottom of the spray pipes (3).
4. The ductile iron pipe cooling device according to claim 1, characterized in that, The support platform is composed of several steel bars (11), which are arranged at intervals on the top of the base frame (1) along the second direction. The distance of the steel bars (11) from the ground gradually decreases along the first direction.