Coal injection pipe casting material construction mold

Abstract

This utility model relates to the field of casting mold technology and discloses a pulverized coal injection pipe casting refractory construction mold, including a lower mold. A positioning strip is provided on the upper side of the lower mold. An upper mold, which limits the positioning strip, is fixedly connected to the upper surface of the lower mold. An injection port is provided on the upper surface of the upper mold. A positioning component is installed on one side of the outer wall of the lower mold. The positioning component includes a hinge seat, one side of which is fixedly connected to one side of the outer wall of the lower mold. A clamping plate is rotatably connected to one side of the outer wall of the hinge seat. In this utility model, by placing the upper mold on the lower mold, positioning it with the positioning strip, and pressing down the L-shaped limiting rod, the rod drives the limiting shaft to slide in the inclined groove, thereby driving the clamping plate to rotate, ultimately causing the clamping plate to abut against and fix the upper mold. This design achieves a fast and automatic mold closing and locking effect, solving the problem of inconvenient installation of traditional molds and improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, and in particular to a construction mold for pulverized coal injection pipe casting material. Background Technology

[0002] The pulverized coal injection pipe is a crucial channel for injecting pulverized coal into the blast furnace. Its working environment is extremely harsh, subjecting it to the scouring and erosion of high-temperature, high-speed, dust-laden airflow over extended periods. Therefore, a wear-resistant and high-temperature-resistant castable lining is typically constructed on its inner wall to extend its service life. The pulverized coal injection pipe castable lining mold is a key piece of equipment used to precisely shape and form the required thickness of the castable lining inside the pulverized coal injection pipe; its design directly impacts construction efficiency and lining quality.

[0003] Currently, a modular mold is commonly used in the construction of pulverized coal injection pipe refractory. This type of mold typically consists of a lower mold and an upper mold. The conventional procedure for installation and mold assembly is as follows: First, the lower mold is placed in the designated position. Then, workers or simple lifting equipment are used to hoist the upper mold and place it on top of the lower mold. Operators need to rely on visual observation and manual adjustment, repeatedly moving the upper mold to align it with the edges and positioning marks of the lower mold. After confirming that the position is basically accurate, multiple bolts and nuts are used through the pre-drilled bolt holes around the mold, and each bolt is tightened using wrenches or other tools until the upper and lower molds are finally pressed together as a single unit.

[0004] However, the traditional bolt-locking method described above presents significant operational inconveniences in actual construction. The core problem lies in the heavy reliance on manual labor, resulting in low efficiency and high labor intensity. The pulverized coal pipe mold itself is typically quite heavy, making precise manual alignment extremely difficult and requiring repeated adjustments, which is time-consuming and labor-intensive. More importantly, after alignment, tools are needed to tighten each of the numerous bolts distributed around the mold, a cumbersome and time-consuming process that significantly extends the preparation period for mold installation. Especially in situations requiring frequent mold disassembly and assembly, this inefficient installation method severely restricts the overall construction progress, increases the workload of workers, and the positioning accuracy depends entirely on the worker's experience and sense of responsibility, making it difficult to guarantee the stability and accuracy of each installation. Therefore, a pulverized coal pipe castable construction mold is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pulverized coal injection pipe casting refractory construction mold, aiming to improve the inconvenience of traditional bolt-locking mold assembly methods. Its installation relies on manual labor, resulting in low efficiency and high labor intensity. The alignment of the bulky mold and the tightening of multiple bolts are cumbersome and time-consuming, severely restricting the construction progress. Furthermore, the positioning accuracy depends on worker experience, making it difficult to guarantee consistency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pulverized coal injection pipe casting refractory construction mold, including a lower mold, a positioning strip provided on the upper side of the lower mold, an upper mold for limiting the positioning strip fixedly connected to the upper surface of the lower mold, an injection port provided on the upper surface of the upper mold, and a positioning component installed on one side of the outer wall of the lower mold;

[0007] The positioning assembly includes a hinge seat one, one side of the outer wall of the hinge seat one is fixedly connected to one side of the outer wall of the lower mold, a clamping plate one is rotatably connected to one side of the outer wall of the hinge seat one, a fixing plate is fixedly connected to the lower surface of the clamping plate, an inclined groove is formed through the inside of the fixing plate, a spring one is fixedly connected to the lower surface of the outer lip of the lower mold, a fixing piece is fixedly connected to the lower end of the spring, an L-shaped limiting rod is fixedly connected inside the fixing piece, the outer wall of the L-shaped limiting rod is slidably connected to the inside of the outer lip of the lower mold, a limiting shaft one is fixedly connected to one end of the L-shaped limiting rod, a hinge seat two is rotatably connected to one side of the outer wall of the clamping plate one, and a clamping plate two is fixedly connected to one side of the outer wall of the hinge seat two.

[0008] As a further description of the above technical solution:

[0009] A positioning shaft is fixedly connected to one side of the outer wall of the lower mold, and a limiting shaft is fixedly connected to one side of the outer wall of the upper mold. The positioning shaft and the limiting shaft are used to connect multiple lower molds and upper molds.

[0010] As a further description of the above technical solution:

[0011] A bracket is fixedly connected to the lower surface of the lower mold, and a rod is fixedly connected to one side of the outer wall of both the lower mold and the upper mold.

[0012] As a further description of the above technical solution:

[0013] The insert rod is internally connected to symmetrical sliding plates, and a locking block is fixedly connected to one side of the outer wall of the sliding plates.

[0014] As a further description of the above technical solution:

[0015] A telescopic rod is fixedly connected between the two sliding plates. A second spring is sleeved on the outer wall of the telescopic rod, and both ends of the second spring are fixedly connected to one side of the outer wall of the two sliding plates.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the insert rod is slidably connected to the inside of another upper mold, and one side of the outer wall of the card block abuts against one side of the outer wall of another upper mold.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the limiting shaft is slidably connected to the inner wall of the inclined groove, and the lower surface of the clamping plate abuts against the upper surface of the upper mold.

[0020] As a further description of the above technical solution:

[0021] A bracket is fixedly connected to the lower surface of the lower mold, and the bracket is used to support the entire mold.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by placing the upper mold above the lower mold, the positioning bar is used for quick positioning and pressing the L-shaped limiting rod downwards. At this time, the L-shaped limiting rod drives the limiting shaft to slide on the inner wall of the inclined groove. The limiting shaft drives the clamping plate to rotate on the outer wall of the hinge seat. The rotation of the clamping plate facilitates the clamping plate on the lower side of the hinge seat to abut against the upper surface of the upper mold for quick positioning, installation, and mold closing. This solves the problem of inconvenient installation of traditional molds and improves the practicality of the mold.

[0024] 2. In this utility model, after the mold is closed, it is placed according to the required length. After being quickly positioned by the bracket and limit shaft on one side of the lower mold and the upper mold, the insert rod on one side of the upper mold is inserted into another upper mold. This achieves the effect of quickly installing and connecting multiple molds by using the reaction force of the spring to drive the locking block on one side of the sliding plate to abut against the other upper mold. Furthermore, the cooperation of the telescopic rod ensures that the spring will not deform after long-term use, thereby improving the practicality of the mold. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a pulverized coal injection pipe casting refractory construction mold proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the two-part clamping plate structure of a pulverized coal injection pipe casting refractory construction mold proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the upper mold part of a pulverized coal injection pipe casting refractory construction mold proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0029] Figure 5 for Figure 3 Enlarged view of point B in the image.

[0030] Legend:

[0031] 1. Lower mold; 2. Upper mold; 3. Positioning strip; 4. Injection port; 5. Hinge seat one; 6. Clamping plate one; 7. Fixing plate; 8. Inclined groove; 9. L-shaped limit rod; 10. Limiting shaft one; 11. Fixing piece; 12. Spring one; 13. Hinge seat two; 14. Clamping plate two; 15. Bracket; 16. Positioning shaft one; 17. Limiting shaft two; 18. Insert rod; 19. Sliding plate; 20. Locking block; 21. Telescopic rod; 22. Spring two. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 - Figure 5 The present invention provides an embodiment of a pulverized coal injection pipe casting refractory construction mold, comprising a lower mold 1 serving as a mold base, a positioning strip 3 for initial mold closing guidance provided on the upper side of the lower mold 1, an upper mold 2 that cooperates with the aforementioned positioning strip 3 for limiting the position is fixedly connected to the upper surface of the lower mold 1, and an injection port 4 for injecting refractory is provided on the upper surface of the upper mold 2. To achieve rapid locking, a positioning component is installed on one side of the outer wall of the lower mold 1.

[0034] The positioning assembly includes a hinge seat 5 serving as a rotation fulcrum. One side of the outer wall of the hinge seat 5 is fixedly connected to one side of the outer wall of the lower mold 1. A clamping plate 6, serving as a main transmission component, is rotatably connected to one side of the outer wall of the hinge seat 5. A fixing plate 7 is fixedly connected to the lower surface of the clamping plate 6, and a slanted groove 8 for changing the direction of movement is formed through the interior of the fixing plate 7. A spring 12 providing a return force is fixedly connected to the lower surface of the outer lip of the lower mold 1. The lower end of the spring 12 is fixedly connected to a fixing plate 11. An L-shaped limiter serving as a triggering mechanism is fixedly connected inside the fixing plate 11. The outer wall of the L-shaped limiting rod 9 is slidably connected to the inner side of the outer lip of the lower mold 1. One end of the L-shaped limiting rod 9 is fixedly connected to a limiting shaft 10, which serves as a sliding follower. A hinge seat 13 for transmitting motion is rotatably connected to one side of the outer wall of the clamping plate 6. A clamping plate 14, which serves as a final clamping element, is fixedly connected to one side of the outer wall of the hinge seat 13. During operation, the outer wall of the limiting shaft 10 is slidably connected to the inner wall of the inclined groove 8, and the lower surface of the clamping plate 14 abuts against the upper surface of the upper mold 2. To support the entire mold, a bracket 15 for providing stable support is fixedly connected to the lower surface of the lower mold 1.

[0035] Specifically, when the upper mold 2 is placed on top of the lower mold 1, its own weight will compress the L-shaped limiting rod 9, causing it to slide downwards against the elastic force of the spring 12. This linear motion is cleverly converted into the rotational motion of the clamping plate 6 around the hinge seat 5 through the sliding of the limiting shaft 10 within the inclined groove 8. This rotation then drives the clamping plate 14 to flip downwards through the hinge seat 13, ultimately tightly pressing and fixing the top surface of the upper mold 2.

[0036] Reference Figure 1 - Figure 5 A positioning shaft 16, serving as a male positioning element, is fixedly connected to one side of the outer wall of the lower mold 1, and a limiting shaft 17, serving as a female positioning element, is correspondingly fixedly connected to one side of the outer wall of the upper mold 2. The positioning shaft 16 and the limiting shaft 17 cooperate with each other during assembly to axially align and connect multiple lower mold 1 and upper mold 2 units. To provide stable support, a bracket 15 is fixedly connected to the lower surface of the lower mold 1, and a connecting rod 18 is fixedly connected to one side of the outer wall of each unit consisting of the lower mold 1 and the upper mold 2. A pair of sliding plates 1, symmetrically arranged on the left and right sides, are slidably connected inside the insert rod 18. 9. A locking block 20 is fixedly connected to one side of the outer wall of each sliding plate 19. To enable the automatic pop-out of the locking block 20, a telescopic rod 21 is fixedly connected between the two sliding plates 19 to guide and limit the movement. A spring 22 is sleeved on the outer wall of the telescopic rod 21 to provide elastic force. The two ends of the spring 22 are fixedly connected to the opposite outer wall sides of the two sliding plates 19. When splicing, the outer wall of the insert rod 18 can be slidably inserted into the preset insertion hole of another upper mold 2, and one side of the outer wall of the locking block 20 is used to abut against the inner wall side of another upper mold 2 to form a lock.

[0037] Specifically, when multiple molds need to be connected to accommodate long-distance construction, the positioning shaft 16 of one mold unit is first aligned and inserted with the limiting shaft 17 of the adjacent mold unit to complete the positioning and alignment of the foundation. Then, the insertion rod 18 on one mold is pushed into the insertion hole of the upper mold 2 on the other side. During insertion, the inner wall of the insertion hole presses the locking block 20 inward, causing it to move the sliding plate 19 towards each other, thereby compressing the spring 22. When the insertion rod 18 is pushed to the predetermined position, the locking block 20 aligns with the pre-set slot inside the insertion hole. At this point, under the elastic force of the spring 22, the sliding plate 19 is quickly pushed open, causing the locking block 20 to pop outward and engage in the slot, thus achieving a secure and reliable locking between the two mold units.

[0038] Working principle: When this device is needed, firstly, the upper mold 2 is hoisted and placed on the upper surface of the lower mold 1, and initial centering and guidance are achieved through the positioning strip 3. During placement, the bottom surface of the upper mold 2 will naturally press down on the L-shaped limiting rod 9 located on the outer lip of the lower mold 1. This pressure overcomes the supporting force of the spring-12, causing the L-shaped limiting rod 9 to slide downward. As the L-shaped limiting rod 9 slides down, the limiting shaft-10 fixed at one end is also driven to slide along the inner wall of the inclined groove 8 inside the fixed plate 7. Due to the inclined design of the inclined groove 8, the limiting shaft-10, during its sliding along the groove, will force the clamping plate-6 connected to it to rotate around the hinge seat-5, which serves as the fulcrum. This rotation is transmitted to the clamping plate-14 through the hinge seat-213, causing the clamping plate-214 to flip downward, and finally causing its lower surface to tightly abut and press against the upper surface of the upper mold 2, thereby achieving quick and automatic locking and mold closing without any tools. The entire mold is stably supported by the bracket 15 below.

[0039] Secondly, when continuous pouring construction of long-distance pulverized coal injection pipes is required, multiple mold units that have already been assembled can be spliced ​​together. During operation, the positioning shaft 16 of one mold unit is aligned with the limiting shaft 17 of another mold unit to complete initial positioning. Then, the insert rod 18 on the side wall of one mold unit is inserted into the pre-drilled hole of the adjacent upper mold 2. During insertion, the locking block 20 inside the insert rod 18 is compressed inward due to contact with the inner wall of the hole, causing the sliding plates 19 to move towards each other and compress the spring 22. When the insert rod 18 is fully inserted, the locking block 20 passes the constraint position, and under the elastic force of the spring 22, the two sliding plates 19 are pushed apart, causing the locking block 20 to pop outward and abut against the inner wall of the adjacent upper mold 2, thus completing the rapid connection and locking of the two mold units. The telescopic rod 21 provides support and guidance for the spring 22 during this process, ensuring its stable operation. Multiple molds can be connected sequentially in this way to meet construction requirements of different lengths.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made 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 construction mold for pulverized coal injection pipe casting, characterized in that, The lower mold (1) is provided with a positioning strip (3) on its upper side. An upper mold (2) is fixedly connected to the upper surface of the lower mold (1) to limit the positioning strip (3). An injection port (4) is provided on the upper surface of the upper mold (2). A positioning component is installed on one side of the outer wall of the lower mold (1). The positioning assembly includes a hinge seat (5), one side of the outer wall of the hinge seat (5) is fixedly connected to one side of the outer wall of the lower mold (1), one side of the outer wall of the hinge seat (5) is rotatably connected to a clamping plate (6), one side of the lower surface of the clamping plate (6) is fixedly connected to a fixing plate (7), one side of the fixing plate (7) has a through groove (8), one side of the lower mold (1) is fixedly connected to the lower surface of the outer lip, one side of the lower mold (1) is fixedly connected to a spring (12), one side of the lower end of the spring (12) is fixedly connected to a fixing piece (11), one side of the fixing piece (11) is fixedly connected to an L-shaped limiting rod (9), one side of the outer wall of the L-shaped limiting rod (9) is slidably connected to the inner side of the outer lip of the lower mold (1), one side of the L-shaped limiting rod (9) is fixedly connected to a limiting shaft (10), one side of the outer wall of the clamping plate (6) is rotatably connected to a hinge seat (13), one side of the outer wall of the hinge seat (13) is fixedly connected to a clamping plate (14).

2. The pulverized coal injection pipe casting refractory construction mold according to claim 1, characterized in that: A positioning shaft (16) is fixedly connected to one side of the outer wall of the lower mold (1), and a limiting shaft (17) is fixedly connected to one side of the outer wall of the upper mold (2). The positioning shaft (16) and the limiting shaft (17) are used to connect multiple lower molds (1) and upper molds (2).

3. The pulverized coal injection pipe casting refractory construction mold according to claim 2, characterized in that: A bracket (15) is fixedly connected to the lower surface of the lower mold (1), and a plug rod (18) is fixedly connected to one side of the outer wall of both the lower mold (1) and the upper mold (2).

4. The pulverized coal injection pipe casting refractory construction mold according to claim 3, characterized in that: The insert (18) is internally slidably connected to a left-right symmetrical sliding plate (19), and a locking block (20) is fixedly connected to one side of the outer wall of the sliding plate (19).

5. The pulverized coal injection pipe casting refractory construction mold according to claim 4, characterized in that: A telescopic rod (21) is fixedly connected between the two sliding plates (19). A spring (22) is sleeved on the outer wall of the telescopic rod (21). Both ends of the spring (22) are fixedly connected to one side of the outer wall of the two sliding plates (19).

6. The pulverized coal injection pipe casting refractory construction mold according to claim 5, characterized in that: The outer wall of the insert (18) is slidably connected to the inside of another upper mold (2), and one side of the outer wall of the card block (20) abuts against one side of the outer wall of another upper mold (2).

7. The pulverized coal injection pipe casting refractory construction mold according to claim 1, characterized in that: The outer wall of the limiting shaft (10) is slidably connected to the inner wall of the inclined groove (8), and the lower surface of the clamping plate (14) abuts against the upper surface of the upper mold (2).

8. The pulverized coal injection pipe casting refractory construction mold according to claim 1, characterized in that: A bracket (15) is fixedly connected to the lower surface of the lower mold (1), and the bracket (15) is used to support the entire mold.

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