A special slurry double hose horizontal buffer

Abstract

This invention discloses a buffer technology, aiming to provide a horizontal double-tube buffer specifically for slurry transport. The key technical point is that it includes symmetrically arranged buffer components for buffering the slurry transport process to reduce pulsation. Each buffer component includes a pipe body, with a connecting flange fixedly welded to one side and a fixing flange fixedly welded to the other side. Both the fixing flange and the connecting flange have annular slots for installing a hose diaphragm. The slots on the fixing flange and the connecting flange are symmetrically arranged radially along the pipe body. A hose diaphragm, limited by the two annular slots, is disposed within the pipe body. The central axis of the hose diaphragm coincides with the central axis of the pipe body, forming a chamber between the pipe body and the hose diaphragm. This invention is applicable to the field of buffer technology.

Description

Technical Field

[0001] This invention relates to a buffer technology, and more specifically, to a horizontal double-tube buffer for slurry applications. Background Technology

[0002] In the field of slurry transportation, especially in the transportation of high-concentration, high-particle-content slurries in industries such as mining, chemicals, and building materials, the slurry itself has characteristics such as high viscosity, high solid particle content, and unstable flowability. This often causes pressure pulsations in the transportation system due to the periodic operation of the pump. These pulsations not only lead to increased pipeline vibration and noise, but can also cause sealing failures at pipeline connections and fatigue damage to equipment components, severely affecting transportation efficiency and system lifespan. Therefore, buffer devices are essential to suppress these pulsations.

[0003] Currently, commonly used buffering equipment in the industry mainly includes piston-type buffers, spring-type buffers, and traditional airbag-type buffers. Among them, traditional airbag-type buffers are relatively widely used due to their advantages such as fast response speed and stable buffering effect. However, these buffers generally have a key drawback: the buffer airbag is in direct contact with the slurry. Since the slurry contains a large number of hard particles, during long-term operation, these particles will continuously rub and impact the surface of the airbag, causing the airbag to wear and rupture. This not only requires frequent airbag replacement, increasing maintenance costs and downtime, but also may allow slurry to enter the buffering system due to airbag rupture, causing the entire buffering device to become blocked or fail. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a horizontal double-tube buffer for slurry.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a horizontal double-tube buffer for slurry, comprising symmetrically arranged buffer components for buffering the slurry conveying process to reduce pulsation. Each buffer component includes a pipe body, a connecting flange fixedly welded to one side of the pipe body, and a fixing flange fixedly welded to the other side. Both the fixing flange and the connecting flange are provided with annular slots for installing a hose diaphragm. The slots on the fixing flange and the connecting flange are symmetrically arranged radially along the pipe body. A hose diaphragm is disposed inside the pipe body and limited by the two annular slots. The central axis of the hose diaphragm coincides with the central axis of the pipe body, so that a cavity is formed between the pipe body and the hose diaphragm.

[0006] The connecting flange is provided with a detachable end cap. The end cap has an I-shaped cross section and includes a stainless steel pipe body, an interface flange located on one side of the stainless steel pipe body and welded to the stainless steel pipe body, and a compression flange located on the other side of the stainless steel pipe body and welded to the stainless steel pipe body. The compression flange and the connecting flange are fixedly connected by hexagonal head bolts to compress the hose diaphragm.

[0007] A support perpendicular to the axis of the pipe body is fixedly welded to the middle of the pipe body. Several through holes are opened on the pipe body at the connection between the support and the pipe body. An airbag-type buffer is installed on the support. Fluid valves perpendicular to the outer peripheral inclined surface and communicating with the inside of the support are symmetrically arranged on the outer peripheral inclined surface of the support. Propulsion fluid is injected into the chamber through the fluid valves. The cross-section of the channel inside the support is inverted T-shaped, and the ratio of the minimum inner diameter of the channel to the minimum outer diameter of the support is 1:2, and the ratio of the maximum inner diameter of the channel to the maximum outer diameter of the support is 1:1.2.

[0008] An annular gasket for compressing the hose diaphragm is provided between the fixed flanges of the two buffer assemblies, and the two fixed flanges are fixedly connected by hexagonal head bolts and nuts.

[0009] The present invention is further configured such that the angle of the inclined surface on the outer periphery of the support is 30°-60°.

[0010] The present invention is further configured such that the ratio of the thickness of the annular gasket to the thickness of the fixed flange is 1:3-1:4.

[0011] The present invention is further configured such that: the number of through holes opened on the pipe body is 15-20, and they are evenly distributed at the connection between the support and the pipe body, and the diameter of the through holes is 1 / 15-1 / 18 of the diameter of the pipe body.

[0012] The present invention is further configured such that the volume of the airbag-type buffer is 1 / 2 to 2 / 3 of the chamber volume, so as to ensure that the airbag-type buffer generates a moderate buffering force on the hose diaphragm through the propellant fluid.

[0013] The present invention is further configured such that the propellant is transformer oil or ethylene glycol.

[0014] The beneficial effects of this invention are:

[0015] 1. Compared to existing technologies, the present invention's slurry-specific double-tube horizontal buffer significantly enhances the buffering capacity against slurry conveying pulsations through symmetrically arranged double-buffer components. Compared to a single-buffer structure, it can more efficiently offset pressure fluctuations during slurry conveying, avoiding problems such as pipe vibration and loose joints caused by pulsations, thus improving conveying stability. The hose diaphragm is symmetrically limited by annular slots to ensure that its central axis coincides with the pipe body, effectively preventing diaphragm misalignment and wrinkles, reducing wear, extending diaphragm service life, and ensuring chamber sealing performance to prevent slurry leakage or propellant mixing into the slurry. The end cap adopts an I-shaped stainless steel structure, which... It features high strength to ensure a secure connection, and its detachable design facilitates easy maintenance and replacement of the hose diaphragm. The vertical welding and through-hole design of the support, combined with the airbag-type buffer and liquid valve, ensures smooth flow of the propellant fluid and even distribution of the buffering force to the hose diaphragm, making it suitable for slurry delivery scenarios with different pressures. The annular pad and bolt connection ensure a tight connection between the double-unit assembly and prevent the slurry from contacting the airbag-type buffer, thus preventing slurry blockage. Under the action of the airbag buffer, the propellant fluid squeezes the hose diaphragm to achieve a buffering effect. The overall structure is compact, reducing installation space occupation, and is widely applicable to various slurry delivery systems.

[0016] 2. In the horizontal double-tube buffer for slurry of this invention, the inclined surface of the support is set at an angle of 30°-60°, which has the advantages of convenient operation and fluid flow. When the angle is <30°, it is easy to weaken the structural strength of the support and may also cause the propellant fluid to stagnate at the inclined surface. When the angle is >60°, it will result in a narrow installation space for the liquid valve, making it difficult to open or replace the valve during maintenance, and may also hinder the flow of the propellant fluid. The angle range of 30°-60° can provide sufficient installation and operation space for the liquid valve, which is convenient for later injection and replenishment of propellant fluid. It can also ensure that the propellant fluid circulates quickly between the chamber and the support without dead corners, ensuring that the airbag buffer can act on the hose diaphragm through the propellant fluid in real time to maintain a stable buffering force. At the same time, it can ensure the structural stability of the connection between the support and the pipe body and prevent cracking after long-term use. The preferred angle is 45°. This angle setting makes the installation of the liquid valve and the flow of liquid smoother and can effectively reduce the resistance of the liquid during the flow process.

[0017] 3. In this invention, the 1:3 to 1:4 ratio of the thickness of the annular gasket to the thickness of the fixed flange is key to balancing connection reliability and sealing effect. If the gasket is too thick, the bolts will be subjected to excessive force during the connection of the fixed flange, which may lead to bolt deformation or flange cracking, and also increase the overall structural volume. If the gasket is too thin, it will not be able to effectively compress the hose diaphragm, which may lead to diaphragm loosening or displacement, resulting in slurry leakage or a decrease in buffering effect. This ratio allows the annular gasket to provide sufficient and uniform compression force to the hose diaphragm, ensuring that both ends of the hose diaphragm are firmly fixed and preventing the hose diaphragm from shaking during slurry transportation. It also ensures the structural strength of the fixed flange, preventing flange damage during bolt tightening, while reducing the overall structural space occupied. This allows the double buffer assembly to be tightly connected and subjected to balanced force, extending the overall service life of the buffer and reducing the risk of leakage.

[0018] 4. The present invention has a simple and reasonable structure, is easy to manufacture and operate, avoids the defects of the prior art, and is suitable for promotion and application. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the horizontal double-tube buffer for slurry-specific applications of the present invention.

[0020] Figure 2 This is a cross-sectional view of the horizontal double-tube buffer for slurry production according to the present invention.

[0021] Figure 3 This is a structural diagram of the end cap of the horizontal buffer with a double-tube flexible hose for slurry production according to the present invention.

[0022] Figure 1-3 Reference numerals: 1. Pipe body; 2. Connecting flange; 3. Fixed flange; 4. Groove; 5. Hoses and diaphragms; 6. Chamber; 7. End cap; 8. Stainless steel pipe body; 9. Interface flange; 10. Compression flange; 11. Hex head bolt; 12. Support; 13. Through hole; 14. Airbag-type buffer; 15. Liquid inlet valve; 16. Annular gasket; 17. Nut. Detailed Implementation

[0023] Reference Figure 1-3 The following is a further description of an embodiment of the horizontal buffer with a double-tube hose specifically for slurry according to the present invention.

[0024] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.

[0026] Figures 1 to 3 The diagram shows a horizontal double-tube buffer for slurry, comprising symmetrically arranged buffer components for buffering the slurry transport process to reduce pulsation. Each buffer component includes a pipe body 1, with a connecting flange 2 fixedly welded to one side and a fixing flange 3 fixedly welded to the other side. Both the fixing flange 3 and the connecting flange 2 have annular slots 4 for installing a hose diaphragm 5. The slots 4 on the fixing flange 3 and the connecting flange 2 are symmetrically arranged radially along the pipe body 1. A hose diaphragm 5, limited by the two annular slots 4, is disposed inside the pipe body 1. The central axis of the hose diaphragm 5 coincides with the central axis of the pipe body 1, forming a chamber 6 between the pipe body 1 and the hose diaphragm 5.

[0027] The connecting flange 2 is provided with a detachable end cap 7. The end cap 7 has an I-shaped cross-section and includes a stainless steel pipe body 8, an interface flange 9 located on one side of the stainless steel pipe body 8 and welded to it, and a compression flange 10 located on the other side of the stainless steel pipe body 8 and welded to it. The compression flange 10 is fixedly connected to the connecting flange 2 by hexagonal head bolts 11 to compress the hose diaphragm 5. A spring washer and a flat washer for reinforcing the fixation are also sleeved between the hexagonal head bolts 11 and the compression flange 10.

[0028] A support 12 perpendicular to the axis of the pipe body 1 is fixedly welded to the middle of the pipe body 1. Several through holes 13 are provided on the pipe body 1 at the connection between the support 12 and the pipe body 1. An airbag-type buffer 14 is installed on the support 12. Fluid-passing valves 15, perpendicular to the outer peripheral inclined surface and communicating with the interior of the support 12, are symmetrically arranged on the outer peripheral inclined surface of the support 12. Propulsion fluid is injected into the chamber 6 through the fluid-passing valves 15. The cross-section of the channel inside the support 12 is inverted T-shaped. Furthermore, the ratio of the minimum inner diameter of the channel to the minimum outer diameter of the support 12 is 1:2, and the ratio of the maximum inner diameter of the channel to the maximum outer diameter of the support 12 is 1:1.2. The inverted T-shaped channel is suitable for components of different sizes, improving the versatility of the support 12. The ratio of the channel to the outer diameter of the support 12 of 1:2 and 1:1.2 ensures that the internal space of the channel meets the usage requirements while allowing the support 12 to retain sufficient structural strength to avoid deformation. In addition, the reasonable ratio balances functionality and stability, extends the service life of the support 12, and adapts to more application scenarios.

[0029] An annular gasket 16 for pressing the hose diaphragm 5 is provided between the fixed flanges 3 of the two buffer components. The two fixed flanges 3 are fixedly connected by hexagonal head bolts 11 and nuts 17. Spring washers and flat washers for reinforcing fixation are provided between the hexagonal head bolts 11 and the fixed flanges 3, and between the nuts 17 and the fixed flanges 3.

[0030] By symmetrically arranging double buffer components, the buffering capacity against pulsations during slurry delivery is significantly enhanced. Compared to a single buffer structure, it can more efficiently offset pressure fluctuations during slurry delivery, avoiding problems such as pipeline vibration and loose joints caused by pulsations, thus improving delivery stability. The flexible hose diaphragm 5 is symmetrically limited by annular slots 4, ensuring that its central axis coincides with the pipeline body 1, effectively preventing diaphragm misalignment and wrinkles, reducing wear, and extending diaphragm service life. At the same time, it ensures the sealing performance of the chamber 6, preventing slurry leakage or mixing of propellant fluid into the slurry. The end cap 7 adopts an I-shaped stainless steel structure, which not only has high strength to ensure a firm connection, but also allows for detachable design. The design facilitates easy maintenance and replacement of the hose diaphragm 5. The vertical welding of the support 12 and the through-hole 13, together with the airbag-type buffer 14 and the liquid valve 15, enable smooth flow of the propulsion fluid and even transmission of the buffering force to the hose diaphragm 5, adapting to different pressure slurry conveying scenarios. The annular pad 16 is connected to the bolt to ensure tight connection of the double assembly. In addition, it prevents the slurry from contacting the airbag-type buffer 14, preventing slurry blockage of the airbag-type buffer 14. Under the action of the airbag-type buffer 14, the propulsion fluid squeezes the hose diaphragm 5 to achieve a buffering effect. The overall structure is compact, reducing the installation space occupied, and is widely applicable to various slurry conveying systems.

[0031] The angle of the inclined surface on the outer periphery of the support 12 is 30°-60°;

[0032] The outer periphery of the support 12 is sloped at an angle of 30°-60°, which combines the advantages of convenient operation and fluid flow. When the angle is less than 30°, the structural strength of the support 12 is easily weakened, and the propellant fluid may stagnate at the slope. When the angle is greater than 60°, the installation space of the fluid valve 15 will be narrow, making it difficult to open, close or replace the valve during maintenance, and may also hinder the flow of propellant fluid. The angle range of 30°-60° can provide sufficient installation and operation space for the fluid valve 15, which is convenient for later injection and replenishment of propellant fluid. It can also ensure that the propellant fluid circulates rapidly between the chamber 6 and the support 12 without any dead corners. This ensures that the airbag buffer 14 can act on the hose diaphragm 5 in real time through the propellant fluid to maintain a stable buffering force, while ensuring the structural stability of the connection between the support 12 and the pipe body 1 and preventing cracking after long-term use. The preferred angle is 45°. This angle setting makes the installation of the fluid valve 15 and the flow of liquid smoother and can effectively reduce the resistance of liquid during the flow process.

[0033] The ratio of the thickness of the annular gasket 16 to the thickness of the fixed flange 3 is 1:3-1:4;

[0034] The 1:3 to 1:4 ratio between the thickness of the annular gasket 16 and the thickness of the fixed flange 3 is crucial for balancing connection reliability and sealing performance. If the gasket is too thick, the bolts will be subjected to excessive force during connection of the fixed flange 3, which may lead to bolt deformation or flange cracking, and also increase the overall structural volume. If the gasket is too thin, it will not be able to effectively compress the hose diaphragm 5, which may lead to diaphragm loosening or displacement, resulting in slurry leakage or reduced buffering effect. This ratio allows the annular gasket 16 to provide sufficient and uniform compression force to the hose diaphragm 5, ensuring that both ends of the hose diaphragm 5 are firmly fixed and preventing the hose diaphragm 5 from shaking during slurry transportation. It also ensures the structural strength of the fixed flange 3, preventing flange damage during bolt tightening, while reducing the overall structural space occupied. This allows the double buffer assembly to be tightly connected and evenly stressed, extending the overall service life of the buffer and reducing the risk of leakage.

[0035] The number of through holes 13 opened on the pipe body 1 is 15-20, and they are evenly distributed at the connection between the support 12 and the pipe body 1. The diameter of the through holes 13 is 1 / 15-1 / 18 of the diameter of the pipe body 1.

[0036] The number of 15-20 through holes 13 ensures efficient flow of propellant between chamber 6 and support 12, enabling the propellant to respond quickly to pressure changes in the airbag-type buffer 14, transmit buffering force in a timely manner, and effectively suppress slurry pulsation. At the same time, it avoids weakening the structural strength of the pipe body 1 due to an excessive number of through holes 13, preventing the risk of pipe rupture under the action of transport pressure. The uniform distribution design ensures uniform flow of propellant, avoids propellant stagnation in local areas, makes the transmission of buffering force more stable, and improves the consistency of buffering effect. The ratio of the diameter of the through holes 13 to the diameter of the pipe body 1 ensures smooth fluid flow while further taking into account the integrity of the pipe structure. It prevents the pipe's pressure resistance from decreasing due to excessively large orifice diameter, or the propellant flow from being obstructed due to excessively small orifice diameter, ensuring that the buffer has sufficient structural safety and durability while working efficiently.

[0037] The volume of the airbag-type buffer 14 is 1 / 2 to 2 / 3 of the volume of the chamber 6, so as to ensure that the airbag-type buffer 14 generates a moderate buffering force on the hose diaphragm 5 through the propellant fluid.

[0038] The buffer force can be precisely controlled to ensure a moderate buffering effect. If the volume of the airbag buffer 14 is too small, the buffer force it can provide is insufficient and cannot effectively offset the large pulsations during slurry transportation, leading to increased pipeline vibration. If the volume is too large, the buffer force is too strong, which will excessively compress the hose diaphragm 5, accelerate the fatigue aging of the hose diaphragm 5, shorten its service life, and may also cause abnormal slurry transportation pressure. A volume ratio of 1 / 2 to 2 / 3 allows the reaction force generated by the airbag buffer 14 under pressure to be evenly transmitted to the hose diaphragm 5 through the propellant fluid, which just offsets the pulsating pressure of the slurry. This avoids excessive pulsation affecting the transportation accuracy and prevents the hose diaphragm 5 from being excessively compressed and damaged. At the same time, it improves the adaptability and working stability of the buffer.

[0039] The propellant is transformer oil or ethylene glycol;

[0040] It is adaptable to different slurry conveying environments and working conditions, and has multiple advantages; both propellant fluids have good fluidity, which can quickly transmit the cushioning force of the airbag, ensure timely cushioning response, extend the life of the buffer components, reduce maintenance costs, and broaden the range of applicable environments for the buffer.

[0041] The control method of the present invention:

[0042] Preparation work includes checking the specifications and quality of each component of the buffer to ensure that all components meet the design requirements. This includes, but is not limited to, checking the dimensional accuracy of the connecting flange 2 and the fixed flange 3, the elasticity and integrity of the hose diaphragm 5, and the airtightness of the airbag-type buffer 14. Simultaneously, prepare the necessary tools and auxiliary materials, including but not limited to hexagonal head bolts 11, nuts 17, wrenches, pressure testing devices, and hydrostatic testing devices. Then, assemble the buffer assembly. First, weld the connecting flange 2 and the fixed flange 3 to both sides of the pipe body 1, ensuring that all weld joints are circumferential. Continuing the weld, the flexible diaphragm 5 is then installed inside the pipe body 1, with its position limited by the annular slot 4, ensuring that the central axis of the flexible diaphragm 5 coincides with the central axis of the pipe body 1. Next, the clamping flange 10 of the end cap 7 is fixedly connected to the connecting flange 2 using hexagonal head bolts 11 to securely clamp one end of the flexible diaphragm 5. Then, the support 12 and the airbag buffer 14 are installed. The support 12 is fixedly welded to the middle of the pipe body 1, ensuring that the support 12 is perpendicular to the axis of the pipe body 1. The airbag buffer 14 is then installed on the support 12 and inspected. Check the connection between the support 12 and the airbag of the airbag-type buffer 14 to ensure it is secure and leak-free. Then install the liquid inlet valve 15, symmetrically installed on the outer peripheral inclined surface of the support 12. The liquid inlet valve 15 is perpendicular to the outer peripheral inclined surface and connects to the inside of the support 12. During installation, ensure the sealing performance of the liquid inlet valve 15 is good to prevent propellant leakage. Next, assemble the double buffer by connecting the two assembled buffer components through the fixing flange 3. Place an annular gasket 16 between the two fixing flanges 3 to fix and compress the other end of the hose diaphragm 5, and then use hexagonal head bolts. 11 and nut 17 fix the two fixed flanges 3 together. When tightening the bolts, tighten them symmetrically and evenly to ensure that the connection between the two buffer components is tight and the force is even. Then inject the propellant. Inject the propellant into the chamber 6 between the pipeline body 1 and the hose diaphragm 5 through the liquid valve 15. During the injection process, pay close attention to the injection volume of the propellant. When the injection volume reaches 80%-90% of the volume of the chamber 6, stop the injection. Then close the liquid valve 15 and let it stand for a period of time to observe whether there is any propellant leakage. Finally, install the qualified buffer on the slurry delivery pipeline.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A twin hose horizontal damper for slurry, characterized by: The system includes symmetrically arranged buffer components for buffering the slurry transport process to reduce pulsation. Each buffer component includes a pipe body (1), on one side of which a connecting flange (2) is fixedly welded, and on the other side a fixing flange (3) is fixedly welded. Both the fixing flange (3) and the connecting flange (2) have annular slots (4) for installing a flexible diaphragm (5). The slots (4) on the fixing flange (3) and the connecting flange (2) are symmetrically arranged radially along the pipe body (1). A flexible diaphragm (5) is provided inside the pipe body (1) and is limited by the two annular slots (4). The central axis of the flexible diaphragm (5) coincides with the central axis of the pipe body (1), so that a chamber (6) is formed between the pipe body (1) and the flexible diaphragm (5). The connecting flange (2) is provided with a detachable end cap (7). The end cap (7) has an I-shaped cross section. The end cap (7) includes a stainless steel pipe body (8), an interface flange (9) disposed on one side of the stainless steel pipe body (8) and welded to the stainless steel pipe body (8), and a compression flange (10) disposed on the other side of the stainless steel pipe body (8) and welded to the stainless steel pipe body (8). The compression flange (10) and the connecting flange (2) are fixedly connected by hexagonal head bolts (11) to compress the hose diaphragm (5). A support (12) perpendicular to the axis of the pipe body (1) is fixedly welded to the middle of the pipe body (1). Several through holes (13) are opened on the pipe body (1) at the connection between the support (12) and the pipe body (1). An airbag-type buffer (14) is installed on the support (12). Fluid valves (15) perpendicular to the outer peripheral inclined surface and connected to the inside of the support (12) are symmetrically arranged on the outer peripheral inclined surface of the support (12). Propulsion fluid injected through the fluid valve (15) is provided in the chamber (6). The cross section of the channel inside the support (12) is inverted T-shaped, and the ratio of the minimum inner diameter of the channel to the minimum outer diameter of the support (12) is 1:2, and the ratio of the maximum inner diameter of the channel to the maximum outer diameter of the support (12) is 1:1.

2. An annular gasket (16) for pressing the hose diaphragm (5) is provided between the fixed flanges (3) of the two buffer components, and the two fixed flanges (3) are fixedly connected by hexagonal head bolts (11) and nuts (17).

2. The horizontal double-tube buffer for slurry processing according to claim 1, characterized in that, The angle of the inclined surface on the outer periphery of the support (12) is 30°-60°.

3. A twin hose horizontal damper for slurry according to claim 1, characterized in that, The ratio of the thickness of the annular gasket (16) to the thickness of the fixed flange (3) is 1:3-1:

4.

4. A twin hose horizontal damper for slurry according to claim 1, wherein The number of through holes (13) opened on the pipe body (1) is 15-20, and they are evenly distributed at the connection between the support (12) and the pipe body (1). The diameter of the through holes (13) is 1 / 15-1 / 18 of the diameter of the pipe body (1).

5. A twin hose horizontal damper for slurry according to claim 1, wherein The volume of the airbag buffer (14) is 1 / 2 to 2 / 3 of the volume of the chamber (6) to ensure that the airbag buffer (14) generates a moderate buffering force on the hose diaphragm (5) through the propellant fluid.

6. A twin soft hose horizontal damper for slurry according to claim 1, wherein The propellant is transformer oil or ethylene glycol.

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