Split type heat-insulating and heating riser

Abstract

The utility model discloses a kind of split type heat preservation heating riser, including upper cylinder, the middle cylinder of being set in the bottom of upper cylinder, the lower cylinder of being set in the bottom of middle cylinder, the surface of the sticking place of the both ends of middle cylinder and upper cylinder, lower cylinder is all provided with fixed mechanism, the fixed mechanism is composed of annular block, annular block, multiple engagement assembly, the surface sticking place one side of the both ends of middle cylinder and upper cylinder, lower cylinder is provided with annular block;With the fixed mechanism of design, with annular block, annular block, the pure mechanical structure of engagement assembly, replace the spring reset piece of easy high-temperature oxidation failure, avoid connection loose, substantially improve the installation stability under high-temperature environment, discard the plug-in operation of each independent clamping lever in circumference, only need to be inserted into corresponding recess with protruding block, the locking of multiple section cylinder can be completed simultaneously, simplify multiple combination steps, significantly improve installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of heating riser technology, specifically relating to a split-type heat-insulating heating riser. Background Technology

[0002] The split-type insulated heating riser is a core feeding equipment in the casting industry. It adopts a multi-section cylinder design, which can be flexibly combined and adjusted in height. It uses thermite to react with molten metal and release heat, and the outer insulation material to keep it warm, thus extending the liquid time of the molten metal, filling the solidification shrinkage gap of the casting to avoid shrinkage cavities and porosity, improving feeding efficiency and metal utilization.

[0003] The announcement number is CN221414934U. A segmented pulp heating riser is proposed. During use, the installation structure of the split-type heat-insulating heating riser cylinder has multiple problems. Under high temperature environment, the return spring of the locking rod is prone to oxidation and failure, resulting in loose connection. The circumferential independent locking rods need to be inserted and removed one by one. When multiple segments are combined, the operation is cumbersome and inefficient. Therefore, this utility model proposes a split-type heat-insulating heating riser. Utility Model Content

[0004] The purpose of this utility model is to provide a split-type heat-insulating and heating riser to solve the problem of cumbersome operation of the split-type heat-insulating and heating riser mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type heat-insulating and heating riser, comprising an upper cylinder, a middle cylinder disposed at the bottom of the upper cylinder, and a lower cylinder disposed at the bottom of the middle cylinder. Fixing mechanisms are provided at the contact surfaces of the middle cylinder with the upper and lower cylinders at both ends. Each fixing mechanism consists of an annular block, an annular block, and multiple engaging components. The annular block is disposed on one side of the contact surfaces of the middle cylinder with the upper and lower cylinders at both ends, and on the other side of the contact surfaces of the middle cylinder with the upper and lower cylinders at both ends. The multiple engaging components are disposed on the inner side of the annular block, the surfaces of both ends of the middle cylinder, the surface of the upper cylinder, and the surface of the lower cylinder.

[0006] Preferably, one side of the inner wall of the annular block is fixed to the side of the middle cylinder, and the other side of the inner wall of the annular block is in contact with the surface of the upper cylinder and the surface of the lower cylinder.

[0007] Preferably, the connection between one end of the annular block and the other end of the annular block is in an engaged state, and a crossbar passes through the engagement between the two ends of the annular block.

[0008] Preferably, both the other end surface of the annular block and the other end surface of the annular block are provided with mounting holes, and bolts pass through the inner side of the mounting holes.

[0009] Preferably, each of the multiple engaging components consists of a groove and a protrusion. The groove is formed on the inner wall of the annular block, and the protrusion is fixed to the surface of the middle cylinder, the surface of the upper cylinder, and the surface of the lower cylinder. The groove and the protrusion are engaged.

[0010] Preferably, both the middle cylinder and the lower cylinder are hollow cylindrical structures.

[0011] Preferably, the material of the annular block and the material of the annular block are both heat-resistant alloys, and the material of the bolt is Hastelloy.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By designing a fixing mechanism, a purely mechanical structure consisting of ring blocks, ring blocks, and locking components is used to replace the spring reset component, which is prone to oxidation and failure at high temperatures. This avoids loose connections, significantly improves installation stability in high-temperature environments, and eliminates the need for inserting and removing circumferential independent locking rods one by one. Instead, the protrusions are simply inserted into the corresponding grooves to lock multiple sections of the cylinder simultaneously, simplifying the multi-section assembly steps and significantly improving installation efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the unfolded annular block B of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of region A in the image;

[0017] Figure 4 This is a schematic diagram of the upper cylinder, middle cylinder, and lower cylinder structure of this utility model;

[0018] In the diagram: 1. Upper cylinder; 2. Middle cylinder; 3. Lower cylinder; 4. Fixing mechanism; 41. Annular block A; 42. Annular block B; 43. Engaging assembly; 430. Crossbar; 431. Groove; 4311. Mounting hole; 4312. Bolt; 432. Protrusion. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 4This utility model provides a technical solution: a split-type heat-insulating riser, including an upper cylinder 1, a middle cylinder 2 located at the bottom of the upper cylinder 1, and a lower cylinder 3 located at the bottom of the middle cylinder 2. The upper cylinder 1, middle cylinder 2, and lower cylinder 3 are the main bodies of the riser, made of pulp heat-insulating material. Their core function is to contain molten metal, extending the liquid state time of the molten metal through their own heating and insulation functions, thus achieving feeding of the casting. The segmented design allows for flexible combination and height adjustment to adapt to the feeding needs of different castings. Fixing mechanisms 4 are provided at the contact surfaces of the middle cylinder 2 with the upper cylinder 1 and lower cylinder 3. The fixing mechanisms 4 are responsible for the connection and fixation of adjacent cylinders, ensuring the stable connection of the segmented cylinders under high temperature and vibration casting environments, preventing misalignment or loosening. Structure 4 consists of annular block A41, annular block B42, and multiple engaging components 43. Annular block A41 is located on one side of the inner cylinder 2 where it contacts the surfaces of the upper cylinder 1 and lower cylinder 3. Annular block B42 is located on the other side of the inner cylinder 2 where it contacts the surfaces of the upper cylinder 1 and lower cylinder 3. Multiple engaging components 43 are located on the inner side of annular block B42, on the surfaces of both ends of the inner cylinder 2, on the surface of the upper cylinder 1, and on the surface of the lower cylinder 3. Through the designed fixing mechanism 4, the purely mechanical structure of annular block A41, annular block B42, and engaging components 43 replaces the spring return component, which is prone to high-temperature oxidation and failure. This avoids loose connections, significantly improves installation stability under high-temperature environments, and eliminates the need for individual insertion and removal of circumferential independent engaging rods. Only the protrusion 4 needs to be engaged. 32 is inserted into the corresponding groove 431, which simultaneously locks the multiple sections of the cylinder, simplifying the multi-section assembly steps and significantly improving installation efficiency. One side of the inner wall of the annular block A41 is fixed to the side of the middle cylinder 2, and the other side of the inner wall of the annular block A41 is in contact with the surface of the upper cylinder 1 and the surface of the lower cylinder 3. One end of the annular block A41 is engaged with one end of the annular block B42. A crossbar 430 passes through the engagement point between one end of the annular block A41 and one end of the annular block B42. Mounting holes 4311 are opened on the other end surfaces of the annular block A41 and the other end surfaces of the annular block B42, and bolts 4312 pass through the inner side of the mounting holes 4311. Multiple engaging components 43 are composed of grooves 431 and protrusions 432. The grooves 431 are opened in the annular block B42. The inner walls of the shaped block A41 and the annular block B42, and the protrusion 432 are fixed to the surfaces of the middle cylinder 2, the upper cylinder 1, and the lower cylinder 3. The groove 431 and the protrusion 432 are in a snap-fit ​​state. The middle cylinder 2 and the lower cylinder 3 are both hollow cylindrical structures. The materials of the annular block A41 and the annular block B42 are both heat-resistant alloys. By using heat-resistant alloys for the annular blocks A41 and B42, they are adapted to the high temperature of molten metal conduction in the casting scene, which can avoid softening, deformation, or oxidation failure at high temperatures. This ensures that the annular blocks maintain structural rigidity and circumferential clamping force throughout the feeding process, preventing the cylinder connection from loosening. The bolt 4312 is made of Hastelloy, which combines high-temperature stability and corrosion resistance.It can withstand the high-temperature environment of casting, preventing bolt preload decay, and resists the erosion of molten metal and sand dust, ensuring the long-term stability of the fastening state of annular blocks A41 and B42, thus enhancing the high-temperature reliability of the fixing mechanism.

[0021] The working principle and usage process of this utility model are as follows: During the cylinder docking process, according to the casting feeding requirements, the upper cylinder 1, the middle cylinder 2, and the lower cylinder 3 are aligned and docked in sequence to determine the total height of the riser;

[0022] By fixing the annular block A41 of the fixing mechanism 4 to the middle cylinder 2, the mounting surfaces of the adjacent cylinders and the middle cylinder 2 are made to fit together. During the fitting process of the adjacent cylinders, the groove 431 on the inner side of the annular block A41 is simultaneously engaged with the protrusion 432 fixed on the surface of the adjacent cylinder. Then, the annular block B42 is closed, and the groove 431 on the inner side of the annular block B42 is engaged with the protrusion 432 fixed on the surface of the adjacent cylinder, covering the connecting area. Then, the annular block A41 and the annular block B42 are fixed by the bolt 4312 through the mounting hole 4311. The riser is installed in the mold shrinkage position, and the riser shrinkage casting is cast. After solidification, the bolts are loosened, the engaging components are separated, and the cylinder sections can be disassembled.

[0023] 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 split-type heat-insulating and heating riser, comprising an upper cylinder (1), a middle cylinder (2) disposed at the bottom of the upper cylinder (1), and a lower cylinder (3) disposed at the bottom of the middle cylinder (2), characterized in that: The two ends of the middle cylinder (2) are fitted with the surfaces of the upper cylinder (1) and the lower cylinder (3), and a fixing mechanism (4) is provided. The fixing mechanism (4) consists of an annular block A (41), an annular block B (42), and a plurality of locking components (43). The annular block A (41) is located on one side of the surface of the middle cylinder (2) and the upper cylinder (1) and the lower cylinder (3), and the annular block B (42) is located on the other side of the surface of the middle cylinder (2) and the upper cylinder (1) and the lower cylinder (3). The plurality of locking components (43) are located on the inner side of the annular block B (42), the surfaces of the two ends of the middle cylinder (2), the surface of the upper cylinder (1), and the surface of the lower cylinder (3).

2. The split-type heat-insulating and heating riser according to claim 1, characterized in that: One side of the inner wall of the annular block A (41) is fixed to the side of the middle cylinder (2), and the other side of the inner wall of the annular block A (41) is attached to the surface of the upper cylinder (1) and the surface of the lower cylinder (3).

3. A split-type heat-insulating and heating riser according to claim 1, characterized in that: One end of the ring block A (41) is engaged with one end of the ring block B (42), and a crossbar (430) passes through the engagement point between one end of the ring block A (41) and one end of the ring block B (42).

4. A split-type heat-insulating and heating riser according to claim 1, characterized in that: The other end surface of the ring block A (41) and the other end surface of the ring block B (42) are provided with mounting holes (4311), and bolts (4312) pass through the inner side of the mounting holes (4311).

5. A split-type heat-insulating and heating riser according to claim 1, characterized in that: Each of the multiple engaging components (43) consists of a groove (431) and a protrusion (432). The groove (431) is formed on the inner wall of the annular block A (41) and the inner wall of the annular block B (42). The protrusion (432) is fixed to the surface of the middle cylinder (2), the surface of the upper cylinder (1), and the surface of the lower cylinder (3). The groove (431) and the protrusion (432) are engaged.

6. A split-type heat-insulating and heating riser according to claim 1, characterized in that: Both the middle cylinder (2) and the lower cylinder (3) are hollow cylindrical structures.

7. A split-type heat-insulating and heating riser according to claim 4, characterized in that: The materials of the annular block A (41) and the annular block B (42) are both heat-resistant alloys, and the material of the bolt (4312) is Hastelloy.

Images