Anti-blocking suction pipe structure for powder material suction filling

Abstract

This utility model discloses an anti-clogging suction pipe structure for powder material suction and filling. It includes a feed pipe and an air inlet pipe, with the air outlet of the air inlet pipe connected and fixed to the wall of the feed pipe in a section with densely packed feed holes. This allows the powder material and the suction gas to form a certain solid-gas ratio within the section with densely packed feed holes before being conveyed in the feed pipe. This reduces the conveying resistance of the powder material and improves the pneumatic suction efficiency. Under undemanding operating conditions, it maintains a stable conveying state of the powder material without accumulation or blockage, improving the conveying efficiency, reducing energy consumption of pneumatic suction, and enhancing the reliability and stability of pneumatic suction. Furthermore, by installing an air inlet regulating valve in the air inlet pipe, the solid-gas ratio formed by the powder material and the suction gas can be adjusted to an optimal ratio suitable for the powder material and operating conditions.

Description

Technical Field

[0001] This utility model relates to a powder material suction device, specifically an anti-clogging suction pipe structure for powder material suction and filling. Background Technology

[0002] When transferring, filling, or conveying drummed or dispersed powder materials to containers, a suction pump is generally used to perform pneumatic suction through a flat-mouthed feed hose or a metal feed rigid pipe. This type of feed pipe has the following drawbacks: powder materials are prone to accumulation or blockage in the feed pipe, especially at the inlet of the feed pipe; the suction and conveying efficiency of powder materials is low, the stability is poor, and the energy consumption is high.

[0003] During the powder additive filling process at a chemical plant in Zhenhai, the traditional flat-mouth feed hose was used for pneumatic suction to fill the powder additive. The following test results were obtained after actual measurement: the conveying efficiency was 35%, the average blockage interval was 9.7 minutes, that is, an average of 6.2 blockages per hour, the solid-to-gas ratio was 0.45 kg material / kg gas, and the conveying energy consumption was 120 kWh / ton of material. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an anti-clogging suction pipe structure for powder material suction and filling.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A clog-resistant suction pipe structure for powder material suction and filling includes: a feed pipe for pneumatic suction conveying of powder materials;

[0007] Its characteristic is that it further includes: an air intake pipe;

[0008] The feed pipe has multiple feed holes evenly distributed in the section near its feed inlet to form a densely packed feed hole section. The air inlet of the air inlet is used to introduce pneumatically drawn gas, and the air outlet of the air inlet is fixedly connected to the wall of the feed pipe in the densely packed feed hole section. Preferably, the air inlet and the feed pipe are connected by welding, and the connection position is preferably located at the center of the densely packed feed hole section.

[0009] Therefore, the usage and working principle of the anti-clogging suction tube structure of this utility model are as follows:

[0010] First, insert the feed inlet and the section of the feed pipe with dense feed holes into the barrelled or dispersed powder material, and connect the air inlet of the air inlet to a gas source that can improve the pneumatic suction gas. Then, select a pneumatic suction gas with properties that are compatible with the physical characteristics of the powder material to meet the conveying requirements of different powder materials.

[0011] Then, the powder material is drawn through the feed pipe by a suction pump, which can realize the pneumatic suction and conveying of the powder material.

[0012] Furthermore, during the pneumatic suction conveying of powder materials, while the powder materials are being drawn into the feed pipe from the inlet and various feed holes, the pneumatic suction gas enters the feed pipe through the air inlet pipe at the section with dense feed holes. This allows the powder materials and pneumatic suction gas to form a certain solid-gas ratio in the section with dense feed holes before being conveyed in the feed pipe. This reduces the conveying resistance of the powder materials and improves the pneumatic suction efficiency. Under undemanding working conditions, it can maintain a stable conveying state of the powder materials without accumulation or blockage, and improves the conveying efficiency of the powder materials, reduces the energy consumption of pneumatic suction, and improves the reliability and stability of pneumatic suction.

[0013] In addition, when there is no special gas protection requirement, the air inlet of the air inlet pipe can be directly exposed to the atmospheric environment, that is, air is used as the force to draw in gas.

[0014] Preferably, the air inlet pipe is equipped with an air inlet regulating valve. This allows the flow rate of the pneumatic suction gas entering the inlet pipe to be adjusted according to the material characteristics of different powder materials. This adjusts the solid-gas ratio formed by the powder material and the pneumatic suction gas to achieve the optimal ratio suitable for the powder material and operating conditions. This further reduces the conveying resistance of the powder material and improves the pneumatic suction efficiency. It helps maintain a stable conveying state of the powder material under any operating conditions, preventing accumulation or blockage, reducing the amount of pneumatic suction gas used, and further improving the conveying efficiency of the powder material, reducing energy consumption of pneumatic suction, and improving the reliability and stability of pneumatic suction. Alternatively, the air inlet regulating valve can be a ball valve for manual adjustment or an automatic control valve to automatically control and adjust the optimal solid-gas ratio based on the estimated optimal ratio of the powder material in the inlet pipe and the system's material conveying state.

[0015] Preferably, a one-way valve is installed in the section of the air inlet pipe between its outlet and the air inlet regulating valve, and the flow direction of the one-way valve is from the air inlet regulating valve to the outlet of the air inlet pipe. This prevents backflow of powdered material in the feed pipe. The one-way valve can be an existing one-way valve or a one-way baffle.

[0016] Preferably, the air inlet pipe is an L-shaped rigid pipe, with a handle installed at the end of a parallel section of the air inlet pipe parallel to the feed pipe. The air inlet of the air inlet pipe is located on the pipe wall of the parallel section. This allows the user to conveniently perform pneumatic suction and conveying operations on powder materials by holding the handle. Additionally, the handle can also be used as a fixing device installed at the discharge port of the powder material container for use in pneumatic conveying pipelines for powder materials in industrial systems. Furthermore, the air inlet pipe, air inlet regulating valve, and handle are preferably connected by threads.

[0017] Preferably, the air inlet of the air inlet pipe is equipped with an air inlet nozzle. This allows for convenient connection to air sources with different suction capacities via the air inlet nozzle. Furthermore, when the feed inlet or feed hole of the feed pipe becomes blocked, pressurized gas can be introduced through the air inlet nozzle to backflush the feed inlet and feed hole of the feed pipe to clear the blockage.

[0018] Preferably, the feed inlet and the section of the feed pipe with densely packed feed holes are covered with a filter screen. This allows for the screening of large particles and damp materials in the powder, preventing them from entering the feed pipe and ensuring stable pneumatic suction conveying. Furthermore, the filter screen is preferably made of metal to improve durability.

[0019] Preferably, the feed inlet of the feed pipe is a sharp feed inlet with an inclined port.

[0020] Preferably, the feed pipe has a threaded connector at its outlet. This allows for easy connection to the suction pipe of a suction pump or direct connection to the suction pump.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] First, this utility model is provided with a feed pipe 1 and an air inlet pipe 2, and the air outlet 2b of the air inlet pipe 2 is connected and fixed to the pipe wall of the feed pipe 1 in the pipe section 1c with dense feed holes. This allows the powder material and the pneumatic suction gas to form a certain solid-gas ratio in the pipe section 1c with dense feed holes before being transported in the feed pipe 1. This reduces the transport resistance of the powder material and improves the pneumatic suction efficiency of the powder material. It can maintain the stable transport state of the powder material under undemanding working conditions without accumulation or blockage, and improves the transport efficiency of the powder material, reduces the energy consumption of pneumatic suction, and improves the reliability and stability of pneumatic suction.

[0023] Secondly, this utility model has an intake regulating valve 3 installed in the intake pipe 2. According to the material characteristics of different powder materials, the flow rate of the pneumatic suction gas entering the feed pipe 1 can be adjusted by regulating valve 3 to adjust the solid-gas ratio formed by the powder material and the pneumatic suction gas to the optimal solid-gas ratio that is suitable for the powder material and working conditions. This further reduces the conveying resistance of the powder material and improves the pneumatic suction efficiency of the powder material. It helps to maintain the stable conveying state of the powder material under any working conditions without accumulation or blockage. It also reduces the amount of pneumatic suction gas used, further improves the conveying efficiency of the powder material, reduces the energy consumption of pneumatic suction, and improves the reliability and stability of pneumatic suction.

[0024] Third, this utility model has an air inlet nozzle 6 installed at the air inlet 2a of the air inlet pipe 2, which can be conveniently connected to air sources that can draw gas with different air pressures. Furthermore, when the feed inlet 1a or feed hole 1b of the feed pipe 1 is blocked, pressurized gas can be introduced through the air inlet nozzle 6 to backflush the feed inlet 1a and feed hole 1b of the feed pipe 1 to clear the blockage.

[0025] Fourth, this utility model has the advantages of simple structure, light weight, wide application range, simple manufacturing, and economic practicality. It has the advantages of simple operation, high portability, and low labor intensity. Moreover, this utility model is easy to realize, the required materials are highly substitutable, and it is easy to use on construction site. This utility model is applicable to the process of suction and filling of powdered catalysts and other materials in industries such as petrochemicals, as well as the suction and unloading of powdered materials. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0027] Figure 1 This is a schematic diagram of the anti-clogging suction tube structure of this utility model. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the embodiments and accompanying drawings to help those skilled in the art better understand the inventive concept of the present invention. However, the scope of protection of the claims of the present invention is not limited to the following embodiments. For those skilled in the art, all other embodiments obtained without creative effort without departing from the inventive concept of the present invention are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1 As shown, the present invention discloses an anti-clogging suction pipe structure for powder material suction and filling, including: a feed pipe 1 for pneumatic suction and conveying of powder materials.

[0031] Also includes: intake pipe 2;

[0032] The feed pipe 1 has multiple feed holes 1b evenly arranged in the section near its feed inlet 1a to form a densely packed feed hole section 1c. The air inlet 2a of the air inlet pipe 2 is used to introduce pneumatically drawn gas, and the air outlet 2b of the air inlet pipe 2 is connected and fixed to the wall of the feed pipe 1 in the densely packed feed hole section 1c. Preferably, the air inlet pipe 2 and the feed pipe 1 are connected by welding, and the connection position is preferably located at the center of the densely packed feed hole section 1c.

[0033] Therefore, the usage and working principle of the anti-clogging suction tube structure of this utility model are as follows:

[0034] First, insert the feed inlet 1a and the densely packed feed hole pipe section 1c of the feed pipe 1 into the barrel or dispersed powder material, and connect the air inlet 2a of the air inlet pipe 2 to an air source that can improve the pneumatic suction gas. Select a pneumatic suction gas with suitable properties according to the physical characteristics of the powder material to meet the conveying requirements of different powder materials.

[0035] Then, the powder material is drawn through the feed pipe 1 by a suction pump, which can realize the pneumatic suction and conveying of the powder material.

[0036] Furthermore, during the pneumatic suction conveying of powder materials, while the powder materials are being drawn into the feed pipe 1 from the inlet 1a and each feed hole 1b, the pneumatic suction gas enters the feed pipe 1 through the air inlet pipe 2 at the section 1c with dense feed holes. This allows the powder materials and pneumatic suction gas to form a certain solid-gas ratio in the section 1c with dense feed holes before being conveyed in the feed pipe 1. This reduces the conveying resistance of the powder materials and improves the pneumatic suction efficiency of the powder materials. Under undemanding working conditions, the conveying state of the powder materials can be kept stable without accumulation or blockage. This also improves the conveying efficiency of the powder materials, reduces the energy consumption of pneumatic suction, and enhances the reliability and stability of pneumatic suction.

[0037] In addition, when there is no special gas protection requirement, the air inlet 2a of the air inlet pipe 2 can be directly exposed to the atmospheric environment, that is, air is used as the gas for pneumatic suction.

[0038] The above is the basic implementation method of this embodiment one, and further optimizations, improvements and limitations can be made based on this basic implementation method:

[0039] Preferably, the air intake pipe 2 is equipped with an air intake regulating valve 3.

[0040] Therefore, based on the material characteristics of different powder materials, the flow rate of the pneumatic suction gas entering the feed pipe 1 can be adjusted by regulating valve 3 to adjust the solid-gas ratio formed by the powder material and the pneumatic suction gas to achieve the optimal solid-gas ratio suitable for the powder material and operating conditions. This further reduces the conveying resistance of the powder material and improves the pneumatic suction efficiency, helping to maintain a stable conveying state of the powder material under any operating conditions without accumulation or blockage. It also reduces the amount of pneumatic suction gas used, further improving the conveying efficiency of the powder material, reducing the energy consumption of pneumatic suction, and improving the reliability and stability of pneumatic suction. In addition, the inlet regulating valve 3 can be a ball valve for manual adjustment or an automatic control valve to automatically control and adjust the optimal solid-gas ratio based on the estimated optimal ratio of the powder material in the feed pipe 1 and the material conveying state of the system.

[0041] Preferably, a one-way valve 4 is installed in the section of the air inlet pipe 2 between its air outlet 2b and the air inlet regulating valve 3, and the flow direction of the one-way valve 4 is from the air inlet regulating valve 3 to the air outlet 2b of the air inlet pipe 2. This prevents backflow of powdered material in the feed pipe 1. The one-way valve 4 can be an existing one-way valve or a one-way baffle.

[0042] Preferably, the air inlet pipe 2 is an L-shaped rigid pipe. A handle 5 is installed at the end of a parallel section of the air inlet pipe 2 parallel to the feed pipe 1. The air inlet 2a of the air inlet pipe 2 is located on the wall of the parallel section. This allows the user to conveniently use the handle 5 to perform pneumatic suction and conveying operations on powder materials. Additionally, the handle 5 can also be used as a fixing device installed at the outlet of the powder material container for use in pneumatic conveying pipelines for powder materials in industrial systems. Furthermore, the air inlet pipe 2, the air inlet regulating valve 3, and the handle 5 are preferably connected by threads.

[0043] Example 2

[0044] Based on the above embodiment one, this embodiment two also adopts the following preferred implementation method:

[0045] The air inlet 2a of the air inlet pipe 2 is equipped with an air inlet nozzle 6. Thus, it is possible to conveniently connect to air sources that can draw gas with different suction forces through the air inlet nozzle 6, and when the feed inlet 1a or feed hole 1b of the feed pipe 1 becomes blocked, pressurized gas can be introduced through the air inlet nozzle 6 to backflush the feed inlet 1a and feed hole 1b of the feed pipe 1 to clear the blockage.

[0046] Example 3

[0047] Based on the above embodiment one or embodiment two, this embodiment two also adopts the following preferred implementation method:

[0048] The feed inlet 1a and the section 1c with densely packed feed holes in the feed pipe 1 are covered with a filter screen 7. This allows for the screening of large particles and damp materials in the powder, preventing them from entering the feed pipe 1 and ensuring stable pneumatic suction conveying. Furthermore, the filter screen 7 is preferably made of metal to improve durability.

[0049] The above is the basic implementation method of this embodiment three, and further optimizations, improvements and limitations can be made based on this basic implementation method:

[0050] Preferably, the feed inlet 1a of the feed pipe 1 is a sharp feed inlet with an inclined port.

[0051] Preferably, the outlet 1d of the feed pipe 1 is provided with a threaded connector. This facilitates connection to the suction pipe of the suction pump or direct connection to the suction pump.

[0052] The technical effects of this utility model are verified through actual tests below:

[0053] In the powder additive filling process of a chemical plant in Zhenhai, the traditional flat-mouth feed hose was used for pneumatic suction to fill the powder additive. Alternatively, the anti-clogging suction pipe structure of this invention (using all the structures of Examples 1 to 3) was used for pneumatic suction to fill the powder additive. The following test results were obtained under the following test conditions:

[0054] Test conditions: Based on GB / T 15625-2014 test standard, conveying distance 15m, pneumatic suction pipe diameter DN50, vacuum degree -0.05Mpa, system pressure between -0.04 and -0.06MPa, ambient humidity: ≤40%RH; material characteristics: median particle size D50 = 28μm, bulk density 0.85g / cm³. 3 .

[0055] The test results of the traditional structure using a flat-mouth feed hose and the present invention are compared as follows:

[0056] Firstly, improved conveying efficiency:

[0057] Traditional structure: 35% (due to frequent blockages);

[0058] This utility model: 82% (optimized solid-gas ratio in the intake pipe).

[0059] Secondly, congestion control:

[0060] The average blockage interval for conventional structures is 9.7 minutes (6.2 times / hour).

[0061] This invention reduces the time to: 33.3 minutes (1.8 times / hour);

[0062] Mechanism: A swirling effect is formed when the gas flow velocity in the intake pipe is 1.2 m / s.

[0063] Third, optimization of the solid-to-gas ratio:

[0064] Traditional structure: 0.45 kg material / kg gas (no adjustment);

[0065] This utility model: 0.92kg / kg (optimal operating point);

[0066] Adjustment range: 0.6~1.1kg / kg (controlled by the opening of the intake valve).

[0067] Fourth, energy consumption comparison:

[0068] Traditional structure: 120kWh / ton of material;

[0069] This utility model: 75kWh / ton (energy saving of 37.5%);

[0070] The main reason for energy saving is reduced downtime for clearing blockages.

[0071] As can be seen from the above test results, this utility model improves the conveying efficiency of powder materials, reduces the energy consumption of pneumatic suction, and improves the reliability and stability of pneumatic suction.

[0072] This utility model is not limited to the specific embodiments described above. Based on the above content and in accordance with the common technical knowledge and conventional methods in the field, without departing from the basic technical idea of ​​this utility model, other equivalent modifications, substitutions or alterations can be made to this utility model, all of which fall within the protection scope of this utility model.

Claims

1. A clog-resistant suction pipe structure for filling powdered materials, comprising: Feed pipe (1) is used for pneumatic suction conveying of powder materials; Its characteristic is that it further includes: an air intake pipe (2); The feed pipe (1) has a plurality of feed holes (1b) evenly arranged in the pipe section near its feed inlet (1a) to form a densely packed feed hole pipe section (1c); the air inlet (2a) of the air inlet pipe (2) is used to introduce gas for pneumatic suction, and the air outlet (2b) of the air inlet pipe (2) is connected and fixed to the pipe wall of the feed pipe (1) in the densely packed feed hole pipe section (1c).

2. The anti-clogging suction pipe structure for powder material suction and filling according to claim 1, characterized in that: The intake pipe (2) is equipped with an intake regulating valve (3).

3. The anti-clogging suction pipe structure for powder material suction and filling according to claim 2, characterized in that: The intake pipe (2) has a one-way valve (4) installed in the pipe section between its outlet (2b) and the intake regulating valve (3), and the flow direction of the one-way valve (4) is from the intake regulating valve (3) to the outlet (2b) of the intake pipe (2).

4. The anti-clogging suction pipe structure for powder material suction and filling according to claim 2, characterized in that: The air inlet pipe (2) is an L-shaped rigid pipe. The air inlet pipe (2) is parallel to the feed pipe (1) and a handle (5) is installed at the end of the parallel pipe section. The air inlet (2a) of the air inlet pipe (2) is located on the pipe wall of the parallel pipe section.

5. The anti-clogging suction pipe structure for powder material suction and filling according to any one of claims 1 to 4, characterized in that: The air inlet (2a) of the air inlet pipe (2) is equipped with an air inlet nozzle (6).

6. The anti-clogging suction pipe structure for powder material suction and filling according to any one of claims 1 to 4, characterized in that: The feed inlet (1a) and the densely packed feed hole pipe section (1c) of the feed pipe (1) are covered with a filter screen (7).

7. The anti-clogging suction pipe structure for powder material suction and filling according to any one of claims 1 to 4, characterized in that: The feed inlet (1a) of the feed pipe (1) is a sharp feed inlet with an inclined port.

8. The anti-clogging suction pipe structure for powder material suction and filling according to any one of claims 1 to 4, characterized in that: The feed pipe (1) has a threaded connector at its outlet (1d).

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