Connecting structure of building gypsum vibrating screen and auger

Abstract

The application relates to the field of building gypsum processing equipment, in particular to a connecting structure of a building gypsum vibrating screen and an auger. The connecting structure comprises a discharging pipe which is installed at a discharging port of the vibrating screen; and a feeding pipe which is installed at a feeding port of the auger, wherein the discharging pipe is cut into the feeding pipe at a discharging end, an active gap is reserved between the outer wall of the cut-in part of the discharging pipe and the inner wall of the feeding pipe, a flexible sealing piece is wrapped around one end of the outer wall of the discharging pipe and the other end of the feeding pipe, so as to prevent material from overflowing from the active gap, the reliability of the equipment is significantly enhanced through the design of the annular gap between the discharging pipe and the feeding pipe, the displacement caused by installation errors or thermal expansion and cold contraction of the equipment or the displacement caused by vibration during operation is effectively compensated, dynamic changes under different working conditions are adapted, the risk of dislocation caused by stress concentration due to rigid connection of the equipment is avoided, and especially, the connecting part can bear greater pressure without being easily damaged or leaked under the condition of material blockage of the auger.

Description

Technical Field

[0001] This application relates to the field of building gypsum processing equipment, and in particular to a connection structure between a building gypsum vibrating screen and an auger. Background Technology

[0002] As an industrial byproduct, the stability of the conveying system for building gypsum directly impacts the efficiency and environmental performance of the entire production process during resource utilization. In recent years, with the advancement of green production, reducing leakage of building gypsum during conveying has become a key focus of the industry. Currently, most building gypsum conveying systems on the market still rely on simple physical connections to connect different devices. While these traditional methods are low-cost, they have revealed many drawbacks in actual operation, especially the problem of easy damage after long-term use, which seriously restricts the further development of the industry. Furthermore, existing technologies have poor adaptability to complex working conditions and struggle to meet increasingly stringent emission standards. Overall, despite some basic research and technological accumulation, the need for more stable and reliable connection structures remains urgent.

[0003] Currently, the two most common methods are direct connection using rigid pipes and wrapping with flexible fabric bags. The former uses short metal pipes directly welded or threaded to connect the two conveying units. Its advantage is high overall strength and resistance to deformation and breakage. Its disadvantage is a lack of flexibility and inability to buffer dimensional changes caused by temperature differences, which increases the risk of misalignment and may lead to material leakage. The latter uses flexible fabric bags and ropes to secure the openings at both ends, forming a sealed cavity for temporary storage of spilled material before subsequent discharge. This method has good elasticity and can effectively alleviate the above problems. However, it still has a fatal flaw: under long-term high-pressure loads, the fabric is prone to tearing, thus losing its barrier function and ultimately causing increased environmental pollution and economic losses.

[0004] Regarding the aforementioned technologies, there are still some shortcomings. Both traditional rigid connections and existing flexible sealing strategies have unavoidable operational risks. Once a blockage occurs, a large amount of untreated material will accumulate rapidly until it exceeds the limit capacity, thereby damaging the integrity of the original structure and causing harmful particles to scatter everywhere, seriously affecting the surrounding ecological environment. Utility Model Content

[0005] The purpose of this utility model is to provide a connection structure between a building gypsum vibrating screen and an auger, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a connection structure between a building gypsum vibrating screen and an auger, comprising a vibrating screen;

[0007] The feed pipe is installed at the feed inlet of the vibrating screen.

[0008] The feed pipe is installed at the feed inlet of the auger, and the discharge end of the discharge pipe is cut into the feed pipe. A movable gap is reserved between the outer wall of the cut-in part of the discharge pipe and the inner wall of the feed pipe.

[0009] The flexible seal is wrapped around the outer wall of the discharge pipe at one end and around one end of the feed pipe at the other end to prevent material from overflowing from the gap.

[0010] By adopting the above technical solution, a circumferential movable gap is designed between the feed pipe and the inlet pipe to effectively compensate for the displacement caused by installation errors or thermal expansion and contraction, or the displacement caused by vibration during operation. This adapts to dynamic changes under different working conditions and avoids the risk of misalignment caused by stress concentration due to rigid connection. The non-contact connection formed by the circumferential movable gap, combined with the flexible sealing element, constructs a physical vibration isolation layer, blocking the transmission of high-frequency vibration of the vibrating screen to the auger, reducing mechanical wear between the feed pipe and the inlet pipe. The flexible sealing element can be adjusted with the expansion and contraction of the feed pipe to achieve a combination of dynamic and static sealing, avoiding seal failure due to equipment vibration or material blockage pressure.

[0011] Optionally, the feed end of the feed pipe is inclined to prevent material from overflowing from the movable gap.

[0012] By adopting the above technical solution, the feeding end of the feed pipe can be tilted to prevent material from overflowing from the movable gap and polluting the external environment. When a small amount of material overflows from the movable gap into the space between the inner wall of the flexible seal and the outer wall of the feed pipe, the flexible seal can be disassembled periodically to clean the vibrating screen, which effectively reduces the occurrence of the flexible seal bursting.

[0013] Optionally, the two ends of the flexible seal in the vertical direction are fixed to the outer wall of the discharge pipe and the outer wall of the feed pipe respectively by fasteners or reinforcing rings.

[0014] By adopting the above technical solution, the flexible seal completely covers the circumferential gap between the outer wall of the feed pipe and the inner wall of the feed pipe, forming a continuous sealing interface. This ensures that there are no exposed gaps between the feed pipe and the feed pipe, thus preventing material from overflowing from the gap. At the same time, the flexible seal itself is extensible and can stretch or compress with the movement of the feed pipe, effectively preventing the seal from tearing due to displacement of the feed pipe. The top of the flexible seal is directly fixed to the fixing component or tightly bound to the outer wall of the feed pipe with the reinforcing ring to prevent dust from overflowing from the top and polluting the environment. Similarly, the bottom of the flexible seal is also fixed to the outer wall of the feed pipe by directly fixing the fixing component or binding it with the reinforcing ring to prevent dust from overflowing from the bottom and polluting the environment, forming a double locking.

[0015] Optionally, both the unloading pipe and the feeding pipe have a connecting groove on the side wrapped by the flexible seal, which is suitable for direct fixed connection with the fixing component or for the reinforcing ring to wrap around and bind the corresponding connection end of the flexible seal.

[0016] By adopting the above technical solution, the connecting groove is used as a visual positioning mark, which makes it easy for operators to quickly align the reinforcing ring to the position that needs to be fixed when using it. Then, the reinforcing ring is used to bind and fix the flexible seal to the wall of the feed pipe and the discharge pipe. At the same time, the connecting groove will evenly transmit the locking force of the reinforcing ring to the outer wall of the pipe, avoiding local stress concentration of the flexible seal that could lead to breakage.

[0017] Optionally, the connecting groove is configured as an circumferential groove formed along the outer wall of the feed pipe and the inlet pipe.

[0018] By adopting the above technical solution, the circumferential groove provides a guiding function for the reinforcing ring, ensuring that when the operator uses the reinforcing ring to tie the flexible seal, the flexible seal will fit tightly against the pipe wall of the feed pipe and the discharge pipe along the preset path, thus avoiding the reinforcing ring from shifting its tying position.

[0019] Optionally, one end of the flexible seal is fixed to the outer wall of the feed pipe by a reinforcing ring, and the other end is connected to the inner wall of the feed pipe by a fastener.

[0020] By adopting the above technical solution, the reinforcing ring is used to tightly bind the seal to the outer surface of the feed pipe, preventing gypsum dust from overflowing along the inner wall of the feed pipe as the feed pipe moves up and down, and flowing and accumulating between the inner side of the flexible seal and the outer wall of the feed pipe. This effectively avoids the flexible seal from tearing due to excessive accumulation of gypsum dust. At the same time, the fixed setting of the flexible seal, with one inside and one outside, ensures that even if the outer seal loosens due to vibration, the inner side can still maintain a basic sealing function, effectively reducing the risk of leakage.

[0021] Optionally, the operating end of the fastener is located outside the connecting groove, and the fixing end is connected through the connecting groove.

[0022] By adopting the above technical solution, operators can tighten or loosen fasteners using standard tools without disassembling pipes or entering the internal space, which facilitates the removal and replacement of flexible seals and effectively improves work efficiency.

[0023] Optionally, the discharge port on the side of the discharge pipe near the feed pipe has a regular geometric shape, such as a circle or a square.

[0024] By adopting the above technical solutions, the processing requirements of different types of gypsum can be met. For example, a circular discharge port can be selected for a high-capacity production line with continuous and uniform feeding, while a square discharge port can be selected for non-uniform materials such as sheet gypsum. This effectively reduces the risk of material bridging and blockage. By rationally selecting the shape of the discharge port, the operating efficiency and environmental friendliness of the building gypsum production line can be effectively improved, meeting the needs of diverse industrial scenarios.

[0025] Optionally, the cutting section of the feed tube is tilted in a direction that matches the spiral direction of the auger.

[0026] By adopting the above technical solution, the inclination angle of the feed pipe cutting part is matched with the spiral direction of the auger, so that the material slides down the pipe wall under the action of gravity and enters the auger. When the auger rotates, the material is pushed by the spiral blades inside the auger to generate radial centrifugal force. The centrifugal force presses the material against the outer wall of the auger cylinder. At the same time, the centrifugal force and the direction of gravity work together to form a spiral forward force to improve the conveying efficiency and effectively avoid material blockage caused by gravity accumulation when feeding vertically.

[0027] Optionally, the flexible seal is configured as one of a fabric-reinforced rubber sheet, a glass fiber cloth, and a polyester fiber blended fabric.

[0028] By adopting the above technical solutions, operators can easily select different types of flexible sealing materials according to the processing requirements of different types of gypsum. For example, fiberglass cloth can be selected for processing gypsum at high temperatures or with high corrosiveness, while cloth-reinforced rubber sheets can be selected for processing gypsum with high frequency vibration or with weak alkaline conditions. Polyester fiber blended fabric can be selected for normal temperature and humidity environments.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. By designing an adjustable circumferential gap between the feed pipe and the discharge pipe, the reliability of the equipment is significantly enhanced. This effectively compensates for displacement caused by installation errors or thermal expansion and contraction, or displacement caused by vibration during operation. It adapts to dynamic changes under different working conditions and avoids the risk of misalignment due to stress concentration caused by rigid connections. In particular, it ensures that the connection parts can withstand greater pressure without easily breaking or leaking when the auger is blocked.

[0031] 2. By setting up a sealing element, a physical vibration isolation layer is constructed, which enhances the overall airtightness of the device and prevents harmful particles from escaping. At the same time, the sealing element can be adjusted with the extension and retraction of the extended feed pipe to achieve a combination of dynamic and static sealing, avoiding seal failure due to equipment vibration or material blockage pressure. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the fastener of this utility model;

[0033] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the fastener of this utility model;

[0034] Figure 3 This is a schematic diagram of the overall structure of the reinforcing ring fixing of this utility model;

[0035] Figure 4 This is a cross-sectional schematic diagram of the overall structure of the reinforcing ring fixing of this utility model;

[0036] Figure 5 This is a schematic diagram of the overall structure of another embodiment of the present invention.

[0037] Explanation of reference numerals in the attached drawings: 1. Vibrating screen; 2. Feed pipe; 3. Screw conveyor; 31. Spiral blade; 4. Feed pipe; 5. Movement gap; 6. Flexible seal; 7. Fixing component; 8. Reinforcing ring; 9. Connecting groove; 10. Fastener. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] like Figure 1 As shown, a connection structure between a building gypsum vibrating screen and an auger includes a vibrating screen 1; a discharge pipe 2 installed at the discharge port of the vibrating screen 1; and a feed pipe 4 installed at the feed inlet of the auger 3. The discharge end of the discharge pipe 2 is cut into the feed pipe 4, and a movable gap 5 is reserved between the outer wall of the cut-in part of the discharge pipe 2 and the inner wall of the feed pipe 4. A flexible sealing element 6 is provided between the discharge pipe 2 and the feed pipe 4. One end of the flexible sealing element 6 is wrapped around the outer wall of the discharge pipe 2, and the other end is wrapped around one end of the feed pipe 4 to prevent material from overflowing from the movable gap 5.

[0040] like Figure 1-2 As shown, a circumferential movable gap 5 is designed between the outer wall of the cutting part of the feed pipe 2 and the inner wall of the feed pipe 4. This effectively compensates for the displacement caused by installation errors or thermal expansion and contraction, or the displacement caused by vibration during operation. It adapts to dynamic changes under different working conditions and avoids the risk of misalignment caused by stress concentration due to the rigid connection between the feed pipe 2 and the feed pipe 4. The non-contact connection formed by the circumferential movable gap 5, combined with the flexible sealing element 6, constructs a physical vibration isolation layer, blocking the transmission of high-frequency vibration of the vibrating screen 1 to the auger 3, reducing the mechanical wear between the feed pipe 2 and the feed pipe 4. The sealing element is made of a flexible material so that it can fold inward or unfold outward with the vibration and expansion of the feed pipe 2, avoiding seal failure due to equipment vibration or material blockage pressure.

[0041] Example 1

[0042] Please see Figure 1 and Figure 2The feed pipe 4 is inclined at the feed end. By inclining the feed end of the feed pipe 4, the material can be prevented from overflowing from the movable gap 5 to the outside and polluting the environment. When a small amount of material overflows from the movable gap 5 into the space between the inner wall of the flexible seal 6 and the outer wall of the feed pipe 4, the flexible seal 6 can be disassembled periodically to clean the vibrating screen, which can effectively reduce the occurrence of the flexible seal 6 being burst by the material.

[0043] Please see Figure 1 and Figure 3 The flexible seal 6 is fixed at both ends to the outer wall of the feed pipe 2 and the outer wall of the feed pipe 4 respectively by the fixing part 7 or the reinforcing ring 8, so that the flexible seal 6 completely covers the reserved circumferential movable gap 5 between the outer wall of the feed pipe 2 and the inner wall of the feed pipe 4, forming a continuous sealing interface, ensuring that there are no exposed gaps between the feed pipe 2 and the feed pipe 4, thereby preventing material from overflowing from the movable gap 5. At the same time, the flexible seal 6 itself has extensibility and can be stretched or compressed with the movement of the feed pipe 2, effectively avoiding the tearing of the flexible seal 6 due to displacement with the feed pipe 2. The top of the flexible seal 6 is directly fixed to the fixing part 7 or tightly bound to the outer wall of the feed pipe 2 by the reinforcing ring 8 to prevent dust from overflowing from the top to the outside and polluting the environment. The bottom of the flexible seal 6 is also fixed to the outer wall of the feed pipe 4 by the fixing part 7 to prevent dust from overflowing from the bottom to the outside and polluting the environment, forming a double locking. The fixing part 7 is set as a flange, and the reinforcing ring 8 is set as a closed loop shape made of spring steel wire cut to the appropriate length.

[0044] Please see Figure 2 and Figure 4 In this embodiment, both the feed pipe 2 and the feed pipe 4 have connecting grooves 9 on the side wrapped by the flexible seal 6. These grooves are suitable for direct fixing by the fastener 7 or for the reinforcing ring 8 to wrap around and bind the corresponding connecting end of the flexible seal 6. The connecting grooves 9 serve as visual positioning marks, making it easy for operators to quickly align them to the position to be fixed when using the reinforcing ring 8. Then, the reinforcing ring 8 is used to bind and fix the corresponding connecting end of the flexible seal 6 in the connecting grooves 9 on the pipe wall of the feed pipe 2 and the feed pipe 4. When the reinforcing ring 8 is used to bind and fix the flexible seal 6, the connecting grooves 9 will evenly transmit the locking force of the reinforcing ring 8 to the outer wall of the pipe, avoiding local stress concentration of the flexible seal 6 that could lead to breakage.

[0045] Please see Figure 2 and Figure 4In this embodiment, the connecting groove 9 is configured as an circumferential groove opened along the outer wall of the feed pipe 2 and the feed pipe 4. By setting the circumferential groove, the reinforcing ring 8 is provided with a guiding function, ensuring that when the operator uses the reinforcing ring 8 to tie the flexible seal 6, the flexible seal 6 will be tightly attached to the pipe wall of the feed pipe 2 and the feed pipe 4 along the preset path, avoiding the offset of the fixing position of the fixing member 7. The circumferential groove structure can be configured as a rectangular straight groove opened axially along the outer wall of the pipe, a V-shaped wedge groove, or a spiral groove with a spiral wall suitable for the fixing member 7 to wrap around the flexible seal 6 in the vertical direction.

[0046] Please see Figure 2 In this embodiment, the discharge port of the feeding pipe 2 near the feeding pipe 4 has a regular geometric shape, such as a circle or a square, which can meet the processing needs of different types of gypsum. For example, a circular discharge port is selected when facing a high-capacity production line with continuous and uniform feeding, while a square discharge port is selected when facing non-uniform materials such as sheet gypsum. This effectively reduces the risk of material bridging and blockage. By reasonably selecting the shape of the discharge port, the operating efficiency and environmental protection of the building gypsum production line can be effectively improved, meeting the needs of diverse industrial scenarios.

[0047] The implementation principle of Example 1 is as follows: A circumferential movable gap 5 is designed between the outer wall of the cutting part of the feeding pipe 2 and the inner wall of the feeding pipe 4 to compensate for the displacement caused by installation errors or thermal expansion and contraction of the equipment or the displacement caused by vibration during operation. The non-contact connection formed by the circumferential movable gap 5, together with the flexible sealing element 6, forms a physical vibration isolation layer, blocking the transmission of high-frequency vibration of the vibrating screen 1 to the auger 3, reducing the mechanical wear between the feeding pipe 2 and the feeding pipe 4. The sealing element is made of a flexible material so that it can fold inward or unfold outward with the vibration and expansion of the feeding pipe 2, avoiding the failure of the seal due to equipment vibration or material blockage pressure.

[0048] Example 2

[0049] The difference between this embodiment and embodiment one is that one end of the flexible seal 6 is fixed to the outer wall of the feed pipe 2 by the fixing member 7, and the other end of the flexible seal 6 is connected to the inner wall of the feed pipe 4 by the fastener 10.

[0050] Please see Figure 4In this embodiment, the flexible seal 6 is tightly bound to the outer surface of the feed pipe 2 using the fastener 7, and then the flexible seal 6 is fixedly connected to the inner wall of the feed pipe 4 using the fastener 10. This prevents gypsum dust from overflowing along the inner wall of the feed pipe 4 as the feed pipe 2 moves up and down, and then flowing and accumulating between the inner side of the flexible seal 6 and the outer wall of the feed pipe 4. This effectively avoids the flexible seal 6 from tearing due to excessive accumulation of gypsum dust. At the same time, the fixed setting of the flexible seal 6 with one inside and one outside ensures that even if the outer seal loosens due to vibration, the inner side can still maintain a basic sealing function, effectively reducing the risk of leakage. The fastener 10 is set as an embedded bolt.

[0051] The implementation principle of Example 2 is as follows: The flexible sealing element 6 is tightly bound to the outer surface of the feed pipe 2 using the fastener 7, and then the flexible sealing element 6 is fixedly connected to the inner wall of the feed pipe 4 using the fastener 10. This prevents gypsum dust from overflowing along the inner wall of the feed pipe 4 as the feed pipe 2 moves up and down, and then flowing and accumulating between the inner side of the flexible sealing element 6 and the outer wall of the feed pipe 4. This effectively avoids the flexible sealing element 6 from tearing due to excessive accumulation of gypsum dust. At the same time, the fixed setting of the flexible sealing element 6, one inside and one outside, ensures that even if the outer seal loosens due to vibration, the inner side can still maintain a basic sealing function.

[0052] Example 3

[0053] The difference between this embodiment and embodiment one is that the inclined direction of the cutting part of the feed pipe 2 is set to match the spiral direction of the spiral blade 31 of the auger 3.

[0054] In this embodiment, the inclination angle of the cutting part of the feed pipe 2 is matched with the spiral direction of the spiral blade 31 of the auger 3, so that the material slides down the pipe wall under the action of gravity and enters the interior of the auger 3. When the auger 3 rotates, the material is pushed by the spiral blade 31 inside the auger 3 to generate radial centrifugal force. The centrifugal force presses the material against the outer wall of the auger 3 cylinder. At the same time, the centrifugal force and the direction of gravity work together to form a spiral forward force to improve the conveying efficiency and effectively avoid material blockage caused by gravity accumulation when vertically feeding.

[0055] The implementation principle of Example 3 is as follows: The inclination direction of the cutting part of the feeding pipe 2 is set to match the spiral direction of the spiral blade 31 of the auger 3, so that the inclination angle of the cutting part of the feeding pipe 2 matches the spiral direction of the spiral blade 31 of the auger 3. Under the action of gravity, the material slides down the pipe wall and enters the interior of the auger 3. When the auger 3 rotates, the material is pushed by the spiral blade 31 inside the auger 3 to generate radial centrifugal force. The centrifugal force presses the material against the outer wall of the auger 3 cylinder. At the same time, the centrifugal force and the direction of gravity work together to form a spiral forward force to improve the conveying efficiency.

[0056] Please see Figures 1-5In Examples 1-3, the flexible sealing element 6 is set as one of the following: a fabric-reinforced rubber sheet, a glass fiber cloth, and a polyester fiber blended fabric. This allows operators to select different types of flexible sealing materials according to the processing requirements of different types of gypsum. For example, glass fiber cloth is selected for processing gypsum at high temperatures or with high corrosiveness, while a fabric-reinforced rubber sheet is selected for processing gypsum with high frequency vibration or with weak alkaline conditions. Polyester fiber blended fabric can be used in normal temperature and humidity environments.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure between a building gypsum vibrating screen and an auger, characterized in that: include The feed pipe (2) is installed at the feed port of the vibrating screen (1); The feed pipe (4) is installed at the feed inlet of the auger (3). The discharge end of the feed pipe (2) is cut into the feed pipe (4). A movable gap (5) is reserved between the outer wall of the cut-in part of the feed pipe (2) and the inner wall of the feed pipe (4). The flexible seal (6) is wrapped around the outer wall of the feed pipe (2) at one end and around the feed pipe (4) at the other end to prevent material from overflowing from the movable gap (5).

2. The connection structure between a building gypsum vibrating screen and an auger according to claim 1, characterized in that: The feed pipe (4) is inclined at the feed end to prevent material from overflowing from the movable gap (5).

3. The connection structure between the building gypsum vibrating screen and the auger according to claim 1, characterized in that: The flexible seal (6) is fixed at both ends in the vertical direction to the outer wall of the feed pipe (2) and the outer wall of the feed pipe (4) respectively by a fastener (7) or a reinforcing ring (8).

4. The connection structure between a building gypsum vibrating screen and an auger according to claim 3, characterized in that: Both the feed pipe (2) and the feed pipe (4) are provided with a connecting groove (9) on the side of the flexible seal (6) that is wrapped by the reinforcing ring (8) around and binding the corresponding connecting end of the flexible seal (6).

5. The connection structure between a building gypsum vibrating screen and an auger according to claim 4, characterized in that: The connecting groove (9) is configured as an circumferential groove along the outer wall of the feed pipe (2) and the feed pipe (4).

6. The connection structure between a building gypsum vibrating screen and an auger according to claim 4, characterized in that: One end of the flexible seal (6) is fixed to the outer wall of the feed pipe (2) by a reinforcing ring (8), and the other end is connected to the inner wall of the feed pipe (4) by a fastener (10).

7. The connection structure between a building gypsum vibrating screen and an auger according to claim 6, characterized in that: The operating end of the fastener (10) is located outside the connecting groove (9), and the fixed end is connected through the connecting groove (9).

8. The connection structure between a building gypsum vibrating screen and an auger according to claim 1, characterized in that: The discharge port of the discharge pipe (2) near the feed pipe (4) is round or square.

9. The connection structure between a building gypsum vibrating screen and an auger according to claim 8, characterized in that: The cutting part of the feed pipe (2) is inclined in a direction that matches the spiral direction of the auger (3).

10. The connection structure between a building gypsum vibrating screen and an auger according to any one of claims 1-9, characterized in that: The flexible seal (6) is configured as one of the following: a fabric-reinforced rubber sheet, a glass fiber cloth, and a polyester fiber blended fabric.

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