A bin pump skid integrated system

Abstract

This application relates to the technical field of silo pump conveying, and provides a silo pump skid-mounted integrated system, which includes a pump body, a feed pipe disposed on the upper part of the pump body, a feed pneumatic control valve disposed on the feed pipe, a gas-solid independent multi-cavity equalizing flow feeder disposed at the discharge end of the pump body, a discharge pneumatic control valve disposed at the discharge end of the gas-solid independent multi-cavity equalizing flow feeder, a conveying main pipe connected to the discharge pneumatic control valve, a flow sensor disposed on the conveying main pipe, and a PLC control system; the gas-solid independent multi-cavity equalizing flow feeder includes mutually isolated gas conveying channels and material conveying channels. This application adopts a "gas-solid independent multi-cavity equalizing flow feeder", which has mutually isolated gas conveying channels and material conveying channels. Combined with the air distribution structure, it reduces the severe impact at bends, ensures stable material conveying in a plunger-like or dense phase flow state, and allows multiple silo pumps to be directly connected in series for feeding without the need for additional reversing valves, simplifying pipeline layout and reducing floor space.

Description

Technical Field

[0001] This application relates to the field of silo pump conveying technology, and in particular to a silo pump skid-mounted integrated system. Background Technology

[0002] Silo pumps, as the core conveying equipment in pneumatic conveying systems, are widely used in industries such as chemical, power, and metallurgy to safely and efficiently transport powdery or granular materials within closed pipelines. Traditional silo pump systems typically use conveying tanks, which present several problems during material transport: First, the system has limited adaptability and unstable conveying. Traditional systems rely on high differential pressure for rapid material discharge, causing materials to easily enter the pipeline in a "pile flow" manner. As the tank pressure decreases, the material inside the pipeline exhibits disordered flow patterns such as dune flow, blockage flow, and suspended flow due to airflow mismatch. This leads to increased pipeline vibration, higher risk of blockage, and severely impacts conveying efficiency and system stability. Furthermore, downtime for cleaning results in significant production losses.

[0003] Secondly, when multiple silos need to be connected for material supply, traditional systems must add complex path reversing valves, which makes the pipeline layout cumbersome, occupies a large space, and is difficult to adapt to complex on-site conditions. Therefore, further improvements are needed. Summary of the Invention

[0004] To address the above issues, this application provides a skid-mounted integrated system for silo pumps.

[0005] This application provides a skid-mounted integrated silo pump system, which adopts the following technical solution: A skid-mounted integrated pump system includes a pump body, an inlet pipe located on the upper part of the pump body, an inlet pneumatic control valve located on the inlet pipe, a gas-solid independent multi-cavity flow equalizer located at the outlet end of the pump body, an outlet pneumatic control valve located at the outlet end of the gas-solid independent multi-cavity flow equalizer, a conveying main pipe connected to the outlet pneumatic control valve, a flow sensor located on the conveying main pipe, and a PLC control system. The gas-solid independent multi-cavity flow equalizer includes a gas conveying channel and a material conveying channel that are isolated from each other. The gas conveying channel is arranged around the material conveying channel. The end of the gas-solid independent multi-cavity flow equalizer is provided with a gas distribution structure that connects the material conveying channel and the gas conveying channel. This structure is used to guide the gas in the gas conveying channel to the material conveying channel and mix it with the material to shape the material into a preset flow state before discharge. The PLC control system is electrically connected to the pump body, the inlet pneumatic control valve, the outlet pneumatic control valve, and the flow sensor. The outlet pneumatic control valve is used to control the flow of material.

[0006] By adopting the above technical solution, the traditional discharge port is just a bend, where the material and gas meet for the first time. The mixing is very violent and uncontrollable, resulting in: material rushing into the pipeline all at once, forming an unstable "pile flow"; uneven gas distribution, with some areas having too much gas, making the material too thin, and others having too little gas, making the material too thick, which may cause blockages and prevent the formation of a stable dense-phase flow. The specially designed "gas-solid independent multi-cavity uniform flow discharge device" has mutually isolated gas and material conveying channels. Combined with the gas distribution structure at the end, the high-pressure gas flow in the gas conveying channel is introduced into the material conveying channel through the gas distribution structure to "cut" and "coat" the conveyed material, achieving "simultaneous flow and mixing," avoiding the violent impact at the bend, and thus ensuring stable material conveying in a plunger-like or dense-phase flow state.

[0007] Furthermore, by incorporating independent gas-solid multi-chamber outlets, it supports multi-compartment series feeding at multiple points without the need for additional directional valves, significantly reducing pipeline layout space. This allows multiple compartment pumps to be directly connected in series for feeding without the need for complex path reversing valves. This simplifies pipeline layout and reduces floor space requirements.

[0008] Among them, the flow sensor can monitor the movement of materials in the main conveying pipe in real time; the PLC control system is electrically connected to the pump body, the inlet pneumatic control valve, the outlet pneumatic control valve and the flow sensor, and can intelligently control and precisely adjust the entire silo pump skid-mounted integrated system to realize dense phase conveying, pressurization, metering and stable supply of materials, improve conveying efficiency, reduce costs and maintenance complexity, and adapt to complex working conditions.

[0009] Preferably, the bottom of the pump body is provided with a fluidizing air distribution ring pipe, and the air distribution ring pipe has a plurality of fluidizing holes that face the inside of the pump body to discharge air.

[0010] By adopting the above technical solution and incorporating a fluidizing air distribution ring pipe, the material inside the pump body is fully fluidized, effectively reducing the friction between the material and the tank wall, minimizing the risk of blockage when discharging from the pump body, and providing a more uniform initial material state for subsequent conveying. Then, the material is discharged in an orderly manner through a gas-solid independent multi-cavity uniform flow discharge device. This combination of "fluidization + orderly discharge" effectively reduces the dual problems of material accumulation at the tank bottom and turbulent flow at the discharge port.

[0011] Preferably, the gas-solid independent multi-cavity uniform flow feeder includes, from the inside out, an inner sleeve and an outer sleeve fitted inside the inner sleeve. The inner cavity of the inner sleeve is a material conveying channel, and the annular gap formed between the outer sleeve and the inner sleeve is a gas conveying channel, which is connected to an external gas source.

[0012] By adopting the above technical solution, the required material conveying sleeve and gas conveying sleeve are formed through the inner sleeve and outer sleeve, which can reduce the problem of unstable flow caused by the mixing of materials and gas.

[0013] Preferably, the gas distribution structure consists of a plurality of gas distribution holes formed on the inner wall of the inner sleeve, connecting the material conveying channel and the gas conveying channel.

[0014] By adopting the above technical solution, the gas can be uniformly and continuously cut into the material flow through multiple air distribution holes on the pipe wall, achieving "mixing while flowing," and avoiding severe impact at bends. During operation, the high-pressure gas flow in the gas delivery channel is uniformly cut into the material flow in the material delivery channel through the air distribution throttling holes, cutting and wrapping the continuous material flow into a stable dense-phase plug flow. This structure realizes the pre-mixing and flow shaping of the material and the conveying gas, reducing the flow turbulence caused by severe gas-solid impact in traditional bend discharge methods.

[0015] Preferably, it also includes a gas recovery module connecting the main delivery pipe and the top of the pump body.

[0016] By adopting the above technical solution, the vent gas at the top of the pump body is incorporated into the main conveying pipe through the gas recovery module and used as conveying gas for residual materials in the auxiliary pipeline. This reduces gas waste, avoids environmental pollution and treatment costs caused by gas emissions, and saves purging gas.

[0017] Preferably, the system includes multiple pump bodies connected in series, and the discharge ports of the pump bodies are all directly connected to the same conveying main pipe through the gas-solid independent multi-cavity equalizing discharge device.

[0018] By adopting the above technical solution, the system uses multiple pumps connected in series, and the discharge ports of the pumps are all directly connected to the same conveying main pipe through an independent gas-solid multi-chamber flow equalizer. On the one hand, it can realize multi-compartment series multi-point feeding to meet the material conveying needs of complex working conditions; on the other hand, since there is no need to add an additional path reversing valve, it can significantly simplify the pipeline design, reduce the pipeline layout space, reduce the footprint cost, and also reduce the potential failure risks caused by the reversing valve, improve the stability and reliability of the system, and facilitate the installation and maintenance of the system.

[0019] Preferably, the material conveying channels are provided in a plurality of manner, and the discharge end of the gas-solid independent multi-force uniform flow discharger further includes a channel selection structure for opening one or more material conveying channels.

[0020] By adopting the above technical solution, a single material conveying channel, compared to multiple material conveying channels, has a relatively larger diameter. During material conveying, the material near the air distribution holes experiences a higher gas concentration and slower flow velocity, while the central area experiences a lower gas concentration and faster flow velocity due to the limited gas penetration range. This results in a relatively uneven velocity distribution within the pipe, potentially leading to dune flows. However, with multiple material conveying channels, the distance from the air distribution holes in the central area is shortened, allowing for a more uniform velocity distribution. The gas penetration distance after entering through the air distribution holes in the pipe wall is significantly reduced, enabling more even envelopment of the material and forming a stable dense-phase plug flow. This fundamentally eliminates the unstable flow patterns such as dune flows and blockage flows caused by the velocity difference between the center and edges in a single channel.

[0021] The channel selection structure can be used to open one or more material conveying channels, thereby enabling multi-channel conveying or multi-concentration adjustment of the same material, greatly improving the system's adaptability.

[0022] Preferably, a plurality of inner sleeves are provided, the inner cavity of the inner sleeves forms the material conveying channel, the channel selection mechanism includes a backflush gas supply pipe connected to the inner sleeve, one inner sleeve is connected to one backflush gas supply pipe, and a solenoid valve for controlling the gas flow is provided on the backflush gas supply pipe, the solenoid valve being electrically connected to the PLC control system.

[0023] By adopting the above technical solution, multiple material conveying channels can be implemented by setting multiple inner sleeves and including a backflush air supply pipe in the channel selection structure. The number of backflush air supply pipes corresponds to the number of inner sleeves. A PLC control system controls solenoid valves to perform reverse air blowing through the backflush air supply pipe connected to the designated material conveying channel, preventing material entry and thus achieving the selection of the material conveying channel. Furthermore, this structure reduces the number of valves required for multiple material conveying channels, reducing the complexity of pipeline layout while still satisfying the needs of multiple material conveying channels.

[0024] Open channel: No backflush air is supplied, the pressure in this channel is low, and materials can enter; Close channel: Backflush air is supplied, the pressure in this channel increases, and materials cannot enter; Adjust flow rate: Adjusting the backflush air pressure can control the ease with which materials can enter, thereby adjusting the flow rate.

[0025] Preferably, at least two inner sleeves are provided, and the two inner sleeves abut against each other and against the inner wall of the outer sleeve.

[0026] By adopting the above technical solution, at least two inner sleeves are provided, which abut against each other and against the inner wall of the outer sleeve, which can play a supporting role and help the material to be stably discharged in a preset flow state, further improving the stability and reliability of the system conveying.

[0027] Preferably, the diameters of the air distribution holes on the plurality of inner sleeves are different, or / and the diameters of the plurality of inner sleeves are different.

[0028] By adopting the above technical solution and setting air distribution orifices of different diameters, the small-diameter orifices generate high-speed jets that can penetrate viscous materials and break up slab layers; the large-diameter orifices provide uniform diffused airflow, suitable for stable conveying of loose materials. The varying diameter of the air distribution orifices along the pipeline can be matched with different air replenishment intensities according to the material's movement state in the pipeline (acceleration section, constant speed section, deceleration section), ensuring stable flow throughout the entire process. Furthermore, by setting inner sleeves of different diameters, the large-diameter channel undertakes the main conveying task, ensuring system capacity; the small-diameter channel serves as an auxiliary adjustment unit with fast response speed, which can be used for precise control of the total conveying volume or as a backup channel. This hierarchical design reduces the drawback of traditional single-channel systems that can only start and stop the entire system when flow adjustment is needed, improving the system's flexibility and stability. When diameter differentiation is combined with air distribution orifice differentiation, for example, a large-diameter channel with a small-diameter orifice is suitable for high-concentration dense phase conveying; a small-diameter channel with a large-diameter orifice is suitable for dilute phase purging. This multi-dimensional designability allows a single discharger to adapt to various materials and operating conditions, significantly improving the system's versatility and adaptability.

[0029] In summary, this application has the following beneficial effects: 1. By using an independent multi-cavity gas-solid flow equalizer, the material and gas are separated into independent cavities. The gas distribution structure is used to introduce the gas into the material channel and mix it with the material, so that the material is stably conveyed in a preset flow state, avoiding the problem of disordered material flow in traditional systems and reducing the risk of pipeline vibration and blockage. 2. The system is equipped with a gas recovery module, which incorporates the vented gas from the top of the pump into the delivery pipeline as an auxiliary gas source, thereby reducing gas waste and avoiding environmental pollution and exhaust gas treatment costs; 3. Multiple pumps are directly connected to the same main conveying pipe through an independent gas-solid multi-chamber flow equalizer, supporting multi-compartment series feeding at multiple points without the need for additional reversing valves, simplifying pipeline design and reducing space occupation. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the pump body in Embodiment 1 of this application; Figure 3This is a schematic diagram of the internal structure of the pump body in Embodiment 1 of this application; Figure 4 yes Figure 3 A magnified view of part A in the middle; Figure 5 This is a schematic diagram of the structure of multiple pump bodies in Embodiment 1 of this application; Figure 6 This is a schematic diagram of the structure of multiple inner sleeves in Embodiment 2 of this application; Figure 7 This is another structural schematic diagram of the multiple inner sleeves in Embodiment 2 of this application; Figure 8 This is a schematic diagram of the structure of Embodiment 3 of this application; Figure 9 This is a schematic diagram of the structure of multiple inner sleeves in Embodiment 3 of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Pump body; 11. Fluidizing gas distribution ring pipe; 111. Fluidizing orifice; 12. Material high level gauge; 13. Material low level gauge; 14. Fluidizing gas inlet valve; 2. Feed pipe; 3. Feed gas control valve; 4. Gas-solid independent multi-cavity equalizing discharge device; 41. Gas conveying channel; 42. Material conveying channel; 43. Gas distribution structure; 431. Gas distribution hole; 44. Inner sleeve; 45. Outer sleeve; 46. Channel selection structure; 461. Backflush gas conveying pipe; 5. Discharge gas control valve; 6. Main conveying pipe; 7. Gas recovery module; 71. Recovery pipeline; 72. Recovery valve; 8. Flow sensor; 81. Flow sensor; 82. Pressure sensor; 9. PLC control system. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail below.

[0033] This application discloses a skid-mounted integrated system for a silo pump.

[0034] Example 1 A skid-mounted integrated system for a silo pump, referring to Figure 1 , Figure 2 It includes a pump body 1, a feed pipe 2, a feed pneumatic control valve 3, a gas-solid independent multi-chamber equalizing discharge device 4, a discharge pneumatic control valve 5, a conveying main pipe 6, a gas recovery module 7, a flow sensor 8, and a PLC control system 9.

[0035] The feed pipe 2 is located on the upper part of the pump body 1, and the feed air control valve 3 is located on the feed pipe 2 to control the material entering the pump body 1. The gas-solid independent multi-cavity equalizing flow discharge device 4 is located at the discharge end of the pump body 1, and the discharge air control valve 5 is located at the discharge end of the gas-solid independent multi-cavity equalizing flow discharge device 4. The discharge air control valve 5 is connected to the conveying main pipe 6, and the flow sensor 8 is located on the conveying main pipe 6. The PLC control system 9 is electrically connected to the pump body 1, the feed air control valve 3, the discharge air control valve 5, and the flow sensor 8. The discharge air control valve 5 is used to control the flow of material.

[0036] This structural combination enables dense-phase material conveying, pressurization, metering, and stable supply, avoiding problems such as disordered flow, high energy consumption, and complex layout found in traditional silo pump systems. Because the various components cooperate with each other, the PLC control system 9 can precisely control the opening and closing of the feed pneumatic valve 3 and the discharge pneumatic valve 5 based on the information fed back by the flow sensor 8, thereby ensuring the stability and efficiency of material conveying.

[0037] Reference Figure 3 , Figure 4 Specifically, the pump body 1, serving as the material storage device during the conveying system, is a wear-resistant and fatigue-resistant pressure vessel capable of withstanding long-term erosion and wear from airflow and materials. The pump body 1 can be made of high-strength alloy steel, which possesses excellent wear resistance and fatigue resistance. A fluidizing air distribution ring pipe 11 is located at the bottom of the pump body 1, with multiple fluidizing holes 111 opening towards the inside of the pump body 1 for air outlet. The function of the fluidizing air distribution ring pipe 11 is to ensure the material inside the pump is fully fluidized, improving its flowability. For example, when compressed air enters the pump body 1 through the fluidizing holes 111 of the fluidizing air distribution ring pipe 11, it can blow the material up, suspending it for easier subsequent conveying. The fluidizing air distribution ring pipe 11 can have a ring-shaped structure, evenly distributed at the bottom of the pump body 1 to ensure uniform material fluidization.

[0038] The feed pneumatic control valve 3 is installed on the feed pipe 2. During operation, the cylinder drives the valve core to move up and down and rotate via the piston rod, thereby opening or closing the valve. The feed pneumatic control valve 3 can be a pneumatic ball valve, which features rapid opening and closing and good sealing performance.

[0039] The gas-solid independent multi-cavity equalizing discharge device 4 includes a gas conveying channel 41 and a material conveying channel 42 that are isolated from each other. The gas conveying channel 41 is arranged around the material conveying channel 42. The gas-solid independent multi-cavity equalizing discharge device 4 has an air distribution structure 43 at its end that connects the material conveying channel 42 and the gas conveying channel 41. This structure is used to guide the gas in the gas conveying channel 41 to the material conveying channel 42 and mix it with the material so that the material is shaped into a preset flow state before being discharged. The PLC control system 9 is electrically connected to the pump body 1, the inlet air control valve 3, the outlet air control valve 5, and the flow sensor 8. The outlet air control valve 5 is used to control the flow of the material.

[0040] Specifically, the gas-solid independent multi-cavity equalizer 4 includes, from the inside out, an inner sleeve 44 and an outer sleeve 45 fitted inside the inner sleeve 44. In this embodiment, the axes of the inner sleeve 44 and the outer sleeve 45 are vertically arranged, and one inner sleeve 44 and one outer sleeve 45 are provided. The inner cavity of the inner sleeve 44 is a material conveying channel 42, and the annular gap formed between the outer sleeve 45 and the inner sleeve 44 is a gas conveying channel 41, which is connected to an external gas source.

[0041] The air distribution structure 43 comprises several air distribution holes 431 formed on the inner wall of the inner sleeve 44, connecting the material conveying channel 42 and the gas conveying channel 41. The axis of the air distribution holes 431 intersects the axis of the inner sleeve 44, and the end of the air distribution hole 431 away from the outer sleeve 45 is inclined downwards towards the material conveying direction. Through the air distribution holes 431, gas in the gas conveying channel 41 can enter the material conveying channel 42 and mix with the material, shaping the material into a preset flow pattern before it is discharged. For example, when gas enters the material conveying channel 42 through the air distribution holes 431, it can disperse the material, making it form a uniform flow pattern and reducing problems such as blockage.

[0042] It should be noted that this system includes multiple pump bodies 1 connected in series, such as... Figure 5 As shown, the discharge ports of the pump body 1 are all directly connected to the same conveying main pipe 6 through the gas-solid independent multi-cavity equalizing discharge device 4.

[0043] Reference Figure 2 The gas recovery module 7 includes a recovery pipe 71 connected to the top of the pump body 1 of the conveying main pipe 6 and a recovery valve 72 installed on the recovery pipe 71. Gas is released at the top of the pump and fed into the conveying pipe. It can be used as a conveying gas for residual materials in the auxiliary pipeline, saving purging gas and reducing environmental pollution and treatment costs caused by gas emissions.

[0044] Back Figure 1The flow sensor 8, installed on the gas delivery pipe, consists of pressure and flow sensors 81, etc., and is used to monitor the movement of materials in the pipe in real time. The flow sensor 8 can transmit the monitored data to the PLC control system 9. The PLC control system 9 dynamically adjusts the gas supply based on this data to ensure that the delivery flow always conforms to the set parameters, avoiding pipe vibration and blockage caused by flow fluctuations.

[0045] The PLC control system 9 employs an intelligent online algorithm calculus controller to dynamically and in real-time control the pump's delivery speed through online calculation. By integrating the gas consumption during the pressurization process and differentiating the residual gas during the depressurization process, the system dynamically calculates the depressurization volume and precisely sets the replenishment volume. This allows for accurate calculation and control of gas consumption during the conveying process, achieved through online dynamic real-time control via pneumatic components such as positioners, solenoid valves, and regulating valves. For example, when the flow sensor 8 detects unstable material flow within the main conveying pipe 6, the PLC control system 9 can adjust the opening of the regulating valve to increase or decrease the replenishment volume, ensuring stable material conveying.

[0046] The implementation principle of the skid-mounted integrated silo pump system in this application embodiment is as follows: Upon receiving a feeding signal from the upstream system, the feeding valve is opened, allowing material to fall freely into the pump body 1. When the material in the pump touches the level gauge probe, a full signal is received, and the feeding valve automatically closes, completing the feeding process. The air inlet valve opens, initiating fluidization and pressurization. Compressed air enters from the air distribution ring pipe at the bottom of the pump body 1, gradually increasing the air pressure inside the pump. When the pressure inside the pump reaches the conveying pressure, the discharge valve automatically opens. Under the pressure, the material is fluidized and quickly enters the conveying pipe for transport, maintaining a state of continuous fluidization and conveying. After the material in the pipeline is completely conveyed, the control system continues to supply air for a certain period to clean the pipeline. Then, the air inlet valve is closed, and after a certain interval, the discharge valve is closed, completing one conveying process and entering the next working cycle. The system is controlled by a PLC control system 9, achieving full automation and seamless integration with upstream and downstream units.

[0047] Example 2 Reference Figure 6 The difference from Embodiment 1 is that in this embodiment, the material conveying channel 42 is provided with several channels, and the discharge end of the gas-solid independent multi-strong uniform flow discharger also includes a channel selection structure 46, which is used to open one or more material conveying channels 42.

[0048] Specifically, several inner sleeves 44 are provided, and the inner cavity of the inner sleeve 44 forms a material conveying channel 42. The channel selection mechanism includes a backflush gas supply pipe 461 connected to the inner sleeve 44. One inner sleeve 44 is connected to one backflush gas supply pipe 461. A solenoid valve (not shown in the figure) for controlling the gas flow is provided on the backflush gas supply pipe 461. The solenoid valve is electrically connected to the PLC control system 9.

[0049] Among them, the inner sleeve 44 can be as follows Figure 7 As shown, multiple coaxial sleeves are used, and the annular gap formed by two adjacent inner sleeves 44 serves as the material conveying channel 42. Or as... Figure 6 As shown, multiple inner sleeves 44 are arranged side-by-side, with at least two inner sleeves 44 abutting against each other and against the inner wall of the outer sleeve 45. When a material conveying channel 42 becomes blocked, gas can be introduced into the channel by opening the solenoid valve on the corresponding backflush air pipe 461 to backflush and clear the blockage. This design increases the system's flexibility and reliability, enabling it to better adapt to different operating conditions.

[0050] The implementation principle of this embodiment is as follows: by setting up multiple material conveying channels 42 and backflushing air pipes 461, the fault tolerance of the system is improved. When a problem occurs in a material conveying channel 42, backflushing can be performed in a timely manner to ensure the normal operation of the system. At the same time, multiple material conveying channels 42 can improve the material conveying efficiency, further enhancing the performance of the entire system. Compared with traditional silo pump systems, this design reduces downtime caused by blockages, lowers maintenance costs, and improves production efficiency.

[0051] Open channel: No backflush air is supplied, the pressure in this channel is low, and materials can enter; Close channel: Backflush air is supplied, the pressure in this channel increases, and materials cannot enter; Adjust flow rate: Adjusting the backflush air pressure can control the ease with which materials can enter, thereby adjusting the flow rate.

[0052] Example 3 Reference Figure 8 , Figure 9 The difference from Embodiment 1 is that, for the several inner sleeves 44 arranged side by side, the diameters of the air distribution holes 431 on the several inner sleeves 44 are all different, or / and, the diameters of the several inner sleeves 44 are all different. Specifically, the following methods apply: The first type involves several inner sleeves 44 with varying diameters of air distribution holes 431, while the inner sleeves 44 themselves have the same diameter. Small-diameter holes generate high-speed jets capable of penetrating viscous materials and breaking down hardened layers; large-diameter holes provide uniformly diffused airflow, suitable for the stable conveying of loose materials. Furthermore, the diameter of the air distribution holes 431 can be varied along the conveying direction, for example, gradually decreasing, or different air replenishment intensities can be matched according to the material's movement within the pipe (acceleration section, constant speed section, deceleration section) to ensure stable flow throughout the entire process.

[0053] The second type features several inner sleeves 44 with identical air distribution holes 431, while the inner sleeves 44 themselves have varying diameters. The larger diameter channels handle the main conveying task, ensuring system capacity; the smaller diameter channels serve as auxiliary adjustment units, offering fast response times and allowing for precise control of the total conveying volume or as backup channels. This tiered design avoids the drawback of traditional single-channel systems that can only be started and stopped entirely when flow adjustment is needed, thus improving system flexibility and stability.

[0054] The third type involves several inner sleeves 44 with varying diameters of air distribution holes 431, and also several inner sleeves 44 with varying diameters. Specifically, large-diameter channels with small-diameter holes are suitable for high-concentration dense phase transport; small-diameter channels with large-diameter holes are suitable for dilute phase purging, such as... Figure 9 As shown. This multi-dimensional designability allows a single feeder to adapt to various materials and working conditions, significantly improving the system's versatility and adaptability.

[0055] 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 skid-mounted integrated system for a silo pump, characterized in that: The system includes a pump body (1), a feed pipe (2) located on the upper part of the pump body (1), a feed air control valve (3) located on the feed pipe (2), a gas-solid independent multi-cavity equalizing flow feeder (4) located at the discharge end of the pump body (1), a discharge air control valve (5) located at the discharge end of the gas-solid independent multi-cavity equalizing flow feeder, a conveying main pipe (6) connected to the discharge air control valve (5), a flow sensor (8) located on the conveying main pipe (6), and a PLC control system (9); the gas-solid independent multi-cavity equalizing flow feeder (4) includes a gas conveying channel (41) and a material conveying channel (42) that are isolated from each other. The gas conveying channel (41) is arranged around the material conveying channel (42). The gas-solid independent multi-cavity equal flow discharge device (4) has a gas distribution structure (43) at its end that connects the material conveying channel (42) and the gas conveying channel (41). It is used to guide the gas in the gas conveying channel (41) to the material conveying channel (42) and mix it with the material so that the material is shaped into a preset flow state and then discharged. The PLC control system (9) is electrically connected to the pump body (1), the feed gas control valve (3), the discharge gas control valve and the flow sensor (8). The discharge gas control valve (5) is used to control the flow of the material.

2. The skid-mounted integrated system for a silo pump according to claim 1, characterized in that: The pump body (1) is provided with a fluidized air distribution ring pipe (11) at the bottom, and a plurality of fluidized holes (111) are provided on the air distribution ring pipe to discharge air into the pump body (1).

3. The skid-mounted integrated system for a silo pump according to claim 1, characterized in that: The gas-solid independent multi-cavity equal flow discharge device (4) includes an inner sleeve (44) and an outer sleeve (45) sleeved on the inner sleeve (44) from the inside out. The inner cavity of the inner sleeve (44) is a material conveying channel (42), and the annular gap formed between the outer sleeve (45) and the inner sleeve (44) is a gas conveying channel (41) and is connected to an external conveying gas source.

4. The skid-mounted integrated system for a silo pump according to claim 3, characterized in that: The gas distribution structure (43) consists of several gas distribution holes (431) opened on the inner wall of the inner sleeve (44), which connect the material conveying channel (42) and the gas conveying channel (41).

5. The skid-mounted integrated system for a silo pump according to claim 3, characterized in that: It also includes a gas recovery module (7) that connects the top of the delivery pipe (6) and the pump body (1).

6. The skid-mounted integrated system for a silo pump according to claim 1, characterized in that: The system includes multiple pump bodies (1) connected in series, and the discharge ports of the pump bodies (1) are all directly connected to the same conveying main pipe (6) through the gas-solid independent multi-cavity equalizing discharge device (4).

7. The skid-mounted integrated system for a silo pump according to claim 4, characterized in that: The material conveying channel (42) is provided with several channels, and the discharge end of the gas-solid independent multi-strong uniform flow discharge device also includes a channel selection structure (46) for opening one or more material conveying channels (42).

8. The skid-mounted integrated system for a silo pump according to claim 7, characterized in that: The inner sleeve (44) is provided in several ways. The inner cavity of the inner sleeve (44) forms the material conveying channel (42). The channel selection mechanism includes a backflush gas pipe (461) connected to the inner sleeve (44). Each inner sleeve (44) is connected to a backflush gas pipe (461). The backflush gas pipe (461) is provided with a solenoid valve for controlling the gas flow. The solenoid valve is electrically connected to the PLC control system (9).

9. A skid-mounted integrated system for a silo pump according to claim 8, characterized in that: At least two inner sleeves (44) are provided, and the two inner sleeves (44) abut against each other and against the inner wall of the outer sleeve (45).

10. A skid-mounted integrated system for a silo pump according to claim 8, characterized in that: The diameters of the air distribution holes (431) on the several inner sleeves (44) are different, or / and the diameters of the several inner sleeves (44) are different.

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