High-pressure pneumatic transmission system for powder and particle materials

Abstract

The utility model relates to the technical field of powder and particle material pneumatic transmission, and provides a powder and particle material high-pressure pneumatic transmission system which comprises a gas compressor, a first drying machine, a second drying machine, a third drying machine, a gas storage tank and a material conveying bin which are sequentially connected through a gas conveying pipeline. And a first valve is arranged on the gas conveying pipeline between the gas storage tank and the material conveying bin. Compared with a dehumidification method in an existing pneumatic transmission system, the pneumatic transmission system has the advantages that different drying steps are sequentially carried out on the gas through the three different drying machines, and it is ensured that the humidity of the gas meets the working environment with the requirement for extremely low moisture.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder and particle material pneumatic transmission technical field, specifically relates to a powder and particle material high pressure pneumatic transmission system. BACKGROUND

[0002] At present, pneumatic conveying system is widely used in material handling industry. This system uses compressed air or other gas to transport granular, powdered material in a closed pipeline, thereby realizing efficient and automated material transfer. Compared with traditional manual transportation of raw materials, it has obvious advantages, greatly reduces the labor intensity of employees, and has the advantages of strong adaptability, can be applied to different materials and complex conveying path, and can also greatly reduce material loss and environmental pollution. But compared with the traditional transportation method, the water content in the gas needs to be strictly controlled in the pneumatic conveying system.

[0003] In the prior art, the pneumatic conveying system generally realizes air drying in a single step through devices such as cold dryers or filters, but this method can effectively remove most of the water, but in a material conveying environment sensitive to water, it cannot fully meet the requirement of ultra-low water content; and the water in the air will mix with the powder, causing the mixed material to stick to the filter core of the filter, causing the filter to be blocked for a long time, so that the conveying cannot be operated. Moreover, since the gas is not monitored during processing, blind operation is easy to cause, resulting in the gas pressure or humidity in the material conveying process not meeting the material conveying standard, so that the feeding cannot be normally completed, causing the pipe blocking event to occur. UTILITY MODEL CONTENT

[0004] The utility model discloses to overcome the defect that the gas dehumidification is not complete in the above-mentioned prior art pneumatic conveying, and provides a powder and particle material high pressure pneumatic transmission system.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] A powder and particle material high pressure pneumatic transmission system, comprising a gas compressor, a first dryer, a second dryer, a third dryer, a gas storage tank and a material conveying bin connected in sequence through a gas pipeline, a first valve is arranged between the gas storage tank and the material conveying bin.

[0007] In the technical scheme, three different dryers are used to realize three-step drying of the gas, ensuring the dryness of the gas, and the valve between the gas storage tank and the material conveying bin is used to control whether the gas can flow from the gas storage tank to the material conveying bin.

[0008] As a preferred scheme, the first dryer is a water removal gas storage tank.

[0009] As a preferred scheme, the second dryer is a cold dryer.

[0010] As a preferred solution, the third drying machine is internally provided with an adsorbent.

[0011] As a preferred solution, the power supply of the transmission system is further provided with a power failure relay connected with the alarm device.

[0012] As a preferred solution, the system further comprises a controller; the first drying machine is provided at the bottom with a second valve; the gas storage tank is provided with a first humidity meter; the input end of the controller is connected with the output end of the first humidity meter, and the output end of the controller is connected with the control end of the first valve and the second valve respectively.

[0013] As a preferred solution, the controller is connected with an uninterruptible power supply.

[0014] As a preferred solution, the gas pipeline between the first drying machine and the second drying machine is provided with a third valve and a second humidity meter; the first drying machine is provided with a first pressure meter; the third valve is connected with the output end of the controller, and the second humidity meter and the first pressure meter are both connected with the input end of the controller.

[0015] As a preferred solution, the transmission system is further provided with a gas heater connected with the second drying machine and the third drying machine through a gas pipeline, and the gas pipeline between the gas heater and the third drying machine is provided with a fourth valve connected with the output end of the controller.

[0016] As a preferred solution, the material conveying bin is provided with a second pressure meter, and the outlet of the material conveying bin is provided with a fifth valve; the second pressure meter is connected with the input end of the controller, and the fifth valve is connected with the output end of the controller.

[0017] Compared with the prior art, the beneficial effects of the technical scheme of the utility model are as follows: the utility model sets three different water removal devices to sequentially remove water from compressed gas, ensures the dryness of the gas, avoids the moisture and loss of the material during transportation, and reduces the risk of pipeline corrosion and material aggregation due to moisture. In addition, the first valve between the gas storage tank and the material conveying bin can control whether the gas enters the material conveying bin, thereby increasing the flexibility and convenience of the system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the framework diagram of the high-pressure pneumatic conveying system of the powder and particle material of the embodiment 1.

[0019] Figure 2 It is the framework diagram of the high-pressure pneumatic conveying system of the powder and particle material of the embodiment 6.

[0020] Figure 3The connection diagram of the high-pressure pneumatic conveying system controller for the powder and particle material in Example 7.

[0021] Figure 4 The architecture diagram of the high-pressure pneumatic conveying system for the powder and particle material in Example 7.

[0022] Wherein, 1-gas compressor, 2-first dryer, 3-second dryer, 4-third dryer, 5-gas storage tank, 6-material conveying bin, 201-second valve, 202-third valve, 203-second humidity meter, 204-first pressure gauge, 401-gas heater, 402-fourth valve, 501-first humidity meter, 502-first valve, 601-second pressure gauge, 602-fifth valve. DETAILED DESCRIPTION

[0023] The drawings are only used for illustrative description, and cannot be understood as a limitation on the patent;

[0024] In order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product;

[0025] It is understandable for those skilled in the art that some known structures and their descriptions in the drawings may be omitted.

[0026] The technical scheme of the utility model will be further described below in combination with the drawings and embodiments.

[0027] Example 1

[0028] The embodiment provides a high-pressure pneumatic conveying system for powder and particle material, as shown in the architecture diagram of the high-pressure pneumatic conveying system for powder and particle material in the embodiment. Figure 1 The architecture diagram of the high-pressure pneumatic conveying system for powder and particle material in the embodiment.

[0029] The high-pressure pneumatic conveying system for powder and particle material provided in the embodiment comprises a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5 and a material conveying bin 6 connected in sequence through a gas conveying pipeline.

[0030] In an optional embodiment, the first dryer 2 is a water-removing gas storage tank, and the first dryer 2 is provided with a second valve 201 at the bottom.

[0031] Further optionally, the second dryer 3 is a cold dryer.

[0032] Further optionally, the third dryer 4 is internally provided with an adsorbent.

[0033] In this embodiment, the high-pressure gas is dried by three different dryers in turn to ensure the dryness of the gas. Specifically, the gas compressor 1 compresses the gas and delivers it to the water removal gas storage tank through the gas pipeline. Because the volume of the gas decreases and the temperature increases after being pressurized, the water content per unit volume also increases. When the humidity reaches a certain level, water molecules are precipitated from the compressed gas, and the small water droplets precipitated from the compressed gas settle at the bottom. The liquid water is discharged through the valve provided at the bottom of the water removal gas storage tank to achieve the first water removal of the compressed gas. The compressed gas after water removal by the water removal gas storage tank 2 is delivered to the cold dryer 3 through the gas pipeline. The refrigerant in the cold dryer 3 flows through the heat exchanger to remove the heat of the compressed gas, so that the temperature of the water remaining in the compressed gas drops to the condensation point, and the water is precipitated from the compressed gas to achieve the second water removal of the compressed gas. The compressed gas after water removal by the cold dryer 3 is delivered to the third dryer 4 through the gas pipeline, and the water in the compressed gas is absorbed by the dryness of the third dryer 4 to achieve the third water removal of the compressed gas. Through the sequential water removal by three different methods, it is ensured that the material sensitive to water can be transmitted by gas force. In addition, by controlling whether the gas in the gas storage tank enters the material conveying bin through the first valve 502 between the gas storage tank 5 and the material conveying bin 6, the pressure of the gas in the material conveying bin can be controlled, and the valve can be opened and closed according to different use scenarios. Specifically, the material to be conveyed is placed in the material conveying bin 6, and the first valve 502 is opened, so that the material in the material conveying bin can be conveyed to a predetermined location. Further, when it is found that the compressed gas in the gas storage tank 5 does not meet the standard, the valve can be closed to prevent the material from being contaminated.

[0034] Embodiment 2

[0035] The embodiment improves the powder and particle material high-pressure pneumatic conveying system proposed in embodiment 1.

[0036] In the powder and particle material high-pressure pneumatic conveying system proposed in this embodiment, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5 and a material conveying bin 6 are connected in turn through a gas pipeline. A first valve 502 is provided in the gas pipeline between the gas storage tank 5 and the material conveying bin 6.

[0037] In an optional embodiment, the power supply of the conveying system is also provided with a power failure relay connected with the alarm device.

[0038] In this embodiment, the power-off relay is arranged to ensure a quick response in the event of power supply interruption. In addition, the power-off relay is connected to the alarm device, and once the power supply interruption is detected, the power-off relay activates the alarm device to timely issue an alarm, which can remind the operator to take emergency measures and also helps to protect the system equipment from damage caused by sudden power failure. Through this connection configuration, necessary protection measures can be taken quickly in the event of power supply abnormality, ensuring the safe and stable operation of the system.

[0039] Embodiment 3

[0040] The embodiment is improved on the basis of the high-pressure pneumatic conveying system for powder and particle materials proposed in Embodiment 1 or Embodiment 2.

[0041] In the high-pressure pneumatic conveying system for powder and particle materials proposed in this embodiment, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6 are connected in sequence through a gas conveying pipeline. A first valve 502 is arranged in the gas conveying pipeline between the gas storage tank 5 and the material conveying bin 6.

[0042] In an optional embodiment, the system further comprises a controller; the bottom of the first dryer 2 is provided with a second valve 201; the gas storage tank 5 is provided with a first humidity meter 501; the input end of the controller is connected to the output end of the first humidity meter 501, and the output end of the controller is connected to the control end of the first valve 502 and the second valve 201, respectively.

[0043] In this embodiment, the first humidity meter 505 is arranged on the gas storage tank 5 to monitor the humidity of the compressed gas in the gas storage tank. When the humidity is less than a preset value, the compressed gas in the gas storage tank is conveyed to the material conveying bin; when the humidity is greater than the preset value, the gas supply is suspended, and the staff needs to investigate the cause. Further, by arranging the controller to connect the first humidity meter 501, the first valve 502, and the second valve 201, the data of the humidity meter 501 can be transmitted back to the controller, and the opening and closing of the first valve 502 can be controlled by the controller, which saves manual operation and can respond to humidity changes in a timely manner.

[0044] Embodiment 4

[0045] The embodiment is improved on the basis of the high-pressure pneumatic conveying system for powder and particle materials proposed in any one of Embodiments 1 to 3.

[0046] In the high-pressure pneumatic conveying system for powder and particle materials proposed in this embodiment, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6 are connected in sequence through a gas conveying pipeline. A first valve 502 is arranged in the gas conveying pipeline between the gas storage tank 5 and the material conveying bin 6.

[0047] In an optional embodiment, the controller is connected with an uninterruptible power supply.

[0048] In this embodiment, the controller is equipped with an uninterruptible power supply, so that in the case of sudden power failure of the equipment, the corresponding valve is ensured to be in the correct position until all actions for the last material delivery are completed. Specifically, since sudden power failure will cause the original material transportation process to be incomplete, resulting in powder material being blocked in the pipeline, cleaning the pipeline requires a lot of manpower and causes pollution and waste of powder / granular material. The uninterruptible power supply of the controller enables the valve connected to the controller to work normally in a power failure state, avoiding material blockage due to incorrect valve state.

[0049] Embodiment 5

[0050] This embodiment is an improvement on the powder and particle material high-pressure pneumatic conveying system proposed in any one of embodiments 1-4.

[0051] In the powder and particle material high-pressure pneumatic conveying system proposed in this embodiment, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6 are connected in sequence through a gas conveying pipeline. A first valve 502 is provided in the gas conveying pipeline between the gas storage tank 5 and the material conveying bin 6.

[0052] In an optional embodiment, a third valve 202 and a second humidity meter 203 are provided in the gas conveying pipeline between the first dryer 2 and the second dryer 3. The first dryer 2 is provided with a first pressure meter 204. The third valve 202 is connected to the output end of the controller, and the second humidity meter 203 and the first pressure meter 204 are both connected to the input end of the controller.

[0053] In this embodiment, the state of compressed gas can be monitored through the first pressure meter 204 and the second humidity meter 203 on the first dryer 2. When the gas pressure of the compressed gas does not reach the predetermined value, if the humidity exceeds the preset value, the third valve 202 is closed at this time. After the compressed gas in the first dryer 2 is pressurized to the predetermined pressure and the second valve 201 is opened, the water vapor with high humidity at the bottom is discharged from the first dryer 2. The above steps are repeated until the humidity and pressure of the compressed gas inside the first dryer 2 reach the standard of the subsequent process, and then the third valve 202 is opened. In addition, if the above steps are repeated multiple times and still cannot reach the standard, the opening degree of the third valve 202 can be controlled to reduce the flow rate of the compressed gas through the cold dryer 3.

[0054] Embodiment 6

[0055] This embodiment is an improvement on the powder and particle material high-pressure pneumatic conveying system proposed in any one of embodiments 1-5, such as Figure 2Fig. 1 is a schematic diagram of the high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment.

[0056] The high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment comprises, in sequence, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6, all connected by gas pipelines. The gas pipeline between the gas storage tank 5 and the material conveying bin 6 is provided with a first valve 502.

[0057] In an alternative embodiment, the conveying system is further provided with a gas heater 401 connected to the second dryer 3 and the third dryer 4 by a gas pipeline. The gas pipeline between the gas heater 401 and the third dryer 4 is provided with a fourth valve 402 connected to the output of the controller.

[0058] Further alternatively, the third dryer 4 is provided with an exhaust valve at the bottom.

[0059] When the drying agent in the third dryer 4 has reached saturation, the gas from the second dryer 3 is heated by the gas heater 401 and enters the third dryer 4 through the fourth valve 402, so that the drying agent in the third dryer 4 is heated and the water absorbed by the drying agent is released into the air near the drying agent, and then discharged through the exhaust valve at the bottom of the third dryer 4, thereby restoring the drying function of the drying agent and allowing the drying agent to be reused.

[0060] Embodiment 7

[0061] The high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment is improved based on any one of Embodiments 1-6. As shown in Fig. 1, the high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment comprises, in sequence, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6, all connected by gas pipelines. Figure 3 As shown in Fig. 2, the high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment comprises, in sequence, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6, all connected by gas pipelines. Figure 4 As shown in Fig. 1, the high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment comprises, in sequence, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6, all connected by gas pipelines.

[0062] The high-pressure pneumatic conveying system for powder and granular materials according to the present embodiment comprises, in sequence, a gas compressor 1, a first dryer 2, a second dryer 3, a third dryer 4, a gas storage tank 5, and a material conveying bin 6, all connected by gas pipelines. The gas pipeline between the gas storage tank 5 and the material conveying bin 6 is provided with a first valve 502.

[0063] In an alternative embodiment, the material conveying bin 6 is provided with a pressure gauge 601, and the outlet of the material conveying bin 6 is provided with a fifth valve 602. The second pressure gauge 601 is connected to the input of the controller, and the fifth valve 602 is connected to the output of the controller.

[0064] In the embodiment, the pressure gauge 601 on the material conveying bin 6 can monitor the pressure of the compressed gas inside the material conveying bin 6, and the pressure gauge 601 is connected with the controller to transmit data, and when the pressure reaches the preset standard, the controller opens the fifth valve 602 to make the material accelerate and send to the material using point. Specifically, if the gas pressure does not reach the standard during conveying, it may cause unstable or discontinuous material conveying, affecting the efficiency of the entire production line and the product quality, therefore, only when the controller monitors that the pressure in the material conveying bin 6 reaches the preset standard, the fifth valve 602 is opened, which ensures the efficient operation of the material conveying process, reduces the need for manual intervention, improves the automation degree of the production process, and avoids the problem of transportation failure caused by insufficient pressure.

[0065] The same or similar reference numerals correspond to the same or similar components;

[0066] The terms describing the positional relationship in the drawings are only used for illustrative description, and should not be understood as a limitation on the patent;

[0067] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A high pressure pneumatic conveying system for powder and granular materials, characterized in that, The system comprises a gas compressor (1), a first dryer (2), a second dryer (3), a third dryer (4), a gas storage tank (5) and a material conveying bin (6) connected in sequence through gas pipelines.

2. The high pressure pneumatic conveying system of particulate material according to claim 1, characterized in that, The first dryer (2) is a water-removing gas storage tank.

3. The high pressure pneumatic conveying system of particulate material according to claim 1, wherein, The second dryer (3) is a cold dryer.

4. The high pressure pneumatic conveying system of particulate material according to claim 1, wherein, The third dryer (4) is internally provided with an adsorbent.

5. The high pressure pneumatic conveying system of particulate material according to claim 1, wherein, The power supply of the transmission system is further provided with a power failure relay connected with an alarm device.

6. The high pressure pneumatic conveying system of particulate material according to any one of claims 1 to 5, characterized in that, The system further comprises a controller, the first dryer (2) is provided with a second valve (201) at the bottom, the gas storage tank (5) is provided with a first humidity meter (501), the input end of the controller is connected with the output end of the first humidity meter (501), and the output end of the controller is connected with the control end of the first valve (502) and the second valve (201) respectively.

7. The high pressure pneumatic conveying system of claim 6, wherein, The controller is connected with an uninterrupted power supply.

8. The high pressure pneumatic conveying system for powder and granular materials according to claim 6, characterized in that, The gas pipeline between the first dryer (2) and the second dryer (3) is provided with a third valve (202) and a second humidity meter (203), the first dryer (2) is provided with a first pressure meter (204), the third valve (202) is connected with the output end of the controller, and the second humidity meter (203) and the first pressure meter (204) are connected with the input end of the controller.

9. The high pressure pneumatic conveying system for powder and granular materials according to claim 6, characterized in that, The transmission system is further provided with a gas heater (401) connected with the second dryer (3) and the third dryer (4) through a gas pipeline, the gas pipeline between the gas heater (401) and the third dryer (4) is provided with a fourth valve (402), and the fourth valve (402) is connected with the output end of the controller.

10. The high pressure pneumatic conveying system for powder and granular materials according to claim 6, characterized in that, The material conveying bin (6) is provided with a second pressure meter (601), the outlet of the material conveying bin (6) is provided with a fifth valve (602), the second pressure meter (601) is connected with the input end of the controller, and the fifth valve (602) is connected with the output end of the controller.

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