Powder delivery system with air quality regulation and method of use

Abstract

The present application relates to a powder conveying system with air quality regulation function and a method thereof. The present application comprises a Roots blower, an exhaust duct, a powder air lock, a conveying duct and an air quality regulation system. The air quality regulation system comprises a regulation duct, an air filter, an air humidifier, an air dryer, an ultraviolet sterilizer, a humidity sensor and a control processor. The exhaust duct is provided with a humidity sensor. The regulation duct comprises a first branch duct, a second branch duct and a third branch duct. The first branch duct is provided with an air humidifier, and the third branch duct is provided with an air dryer. Compared with the prior art, the present application sets an air quality regulation system, so that the air source of the Roots blower can be filtered, sterilized and kept at a suitable humidity for powder production, thereby making the air source of the Roots blower suitable for the powder conveying system, avoiding the situation that the total amount of microorganisms and moisture of the powder exceed the standard, and improving the product quality of the powder.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of powder conveying system, and particularly relates to a powder conveying system with air quality regulation function and a use method thereof. BACKGROUND

[0002] At present, in order to reduce the residual powder in the conveying process, to flexibly convert the warehouse, to improve the unloading capacity and other purposes, the long-distance and large-fall powder conveying system is widely used in the wheat processing and milling industry. The existing powder conveying system includes a Roots blower, an exhaust duct, a conveying duct and a powder air lock.

[0003] The Roots blower of the existing powder conveying system uses natural air as the gas source to pressurize the wheat powder into the warehouse, and the natural air is not purified, sterilized, dehumidified and the like, so that the powder is affected by the environmental air humidity, the bacteria carried in the air, the particulate dust carried in the air or the mosquitoes carried in the air, and finally the powder is contaminated to different degrees, and the whole process is uncontrollable. Among them, the air humidity is too high to affect the quality of the powder product, especially in the spring and summer seasons in the southern region, the relative humidity of the air is often maintained at 80% to 90%, and in the plum rain season, the back south day can be as high as 100%, and the temperature in the southern region is often between 25℃ to 30℃, which provides conditions for the growth of bacteria, and finally leads to the situation that the total amount of microorganisms of the powder product exceeds the standard, the moisture exceeds the standard and the like. In addition, too low air humidity will make the moisture of the powder product too low, which will cause too much water loss during production, directly reducing the quantity of the finished powder product and causing direct economic loss. The patent document CN206437628U in the prior art discloses a flour negative pressure low temperature conveying system, which includes a Roots blower, and still cannot solve the above technical problems.

[0004] Therefore, there is an urgent need for a technical solution capable of regulating the air quality of the gas source of the Roots blower. SUMMARY

[0005] One of the purposes of the present application is to provide a powder conveying system with air quality regulation function to solve the problem that the existing powder conveying system cannot regulate the air quality of the gas source of the Roots blower.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] The powder conveying system with air quality regulation function comprises, in sequence of powder conveying, a Roots blower, an exhaust duct, a powder air lock and a conveying duct, the output end of the Roots blower is communicated with the input end of the exhaust duct, the output end of the exhaust duct is communicated with the input end of the conveying duct through the powder air lock, the powder conveying system with air quality regulation function further comprises an air quality regulation system, the air quality regulation system comprises a regulation duct, an air filter, an air humidifier, an air dryer, an ultraviolet sterilizer, a humidity sensor and a control processor, the total input end of the regulation duct is communicated with the external environment through the air filter, the total output end of the regulation duct is communicated with the input end of the Roots blower through the ultraviolet sterilizer, the output end of the exhaust duct is provided with the humidity sensor, the regulation duct comprises a first branch duct, a second branch duct and a third branch duct, the total input end of the regulation duct is communicated with the input end of the first branch duct and the input end of the second branch duct through a first electronic double-way valve respectively, the first branch duct is internally provided with the air humidifier, the total input end of the regulation duct is communicated with the input end of the second branch duct and the input end of the third branch duct through a second electronic double-way valve respectively, the third branch duct is internally provided with the air dryer, the total output end of the regulation duct is communicated with the output end of the first branch duct, the output end of the second branch duct and the output end of the third branch duct respectively, and the control processor is electrically connected with the air filter, the air humidifier, the air dryer, the ultraviolet sterilizer, the humidity sensor, the first electronic double-way valve and the second electronic double-way valve respectively.

[0008] As the preferred scheme of the powder conveying system with air quality regulation function, the air quality regulation system further comprises a heat exchanger and a cooling water tank, the cooling water tank is communicated with the input end of the heat exchanger and the output end of the heat exchanger respectively, the cooling water tank internally contains cooling liquid, the heat exchanger is sleeved on the outer circumferential surface of the exhaust duct, the cooling water tank is provided with a circulating pump for circulating and conveying the cooling liquid to the inside of the heat exchanger, and the circulating pump is electrically connected with the control processor.

[0009] As the preferred scheme of the powder conveying system with air quality regulation function, the output end of the exhaust duct is provided with a temperature sensor, and the temperature sensor is electrically connected with the control processor.

[0010] As a preferred scheme of the powder conveying system with air quality regulation function, a first one-way valve is arranged at the output end of the first branch pipeline, the first one-way valve allows air to pass in a one-way direction from the output end of the first branch pipeline to the total output end of the regulation pipeline, a second one-way valve is arranged at the output end of the second branch pipeline, the second one-way valve allows air to pass in a one-way direction from the output end of the second branch pipeline to the total output end of the regulation pipeline, and a third one-way valve is arranged at the output end of the third branch pipeline, the third one-way valve allows air to pass in a one-way direction from the output end of the third branch pipeline to the total output end of the regulation pipeline.

[0011] As a preferred scheme of the powder conveying system with air quality regulation function, a fourth one-way valve is arranged at the input end of the exhaust pipeline, the fourth one-way valve allows air to pass in a one-way direction from the output end of the Roots blower to the input end of the exhaust pipeline.

[0012] As a preferred scheme of the powder conveying system with air quality regulation function, the air filter comprises, from outside to inside, a first air filter screen, a second air filter screen and a third air filter screen, the first air filter screen has a mesh number of 2 meshes and a pore diameter of 12.5 mm, the second air filter screen has a mesh number of 12 meshes and a pore diameter of 1.6 mm, and the third air filter screen has a mesh number of 150 meshes and a pore diameter of 0.1 mm.

[0013] One of the purposes of the present application has the beneficial effect that: by arranging the air quality regulation system, the air source of the Roots blower can be filtered, purified, sterilized and kept at a suitable humidity for powder production, so that the air source of the Roots blower is suitable for the powder conveying system, the total amount of microorganisms and the moisture content of the powder are avoided to exceed the standard, the product quality of the powder is improved, and the powder conveying system has the air quality regulation function.

[0014] The second purpose of the present application is to provide a use method of the powder conveying system with air quality regulation function to overcome the shortcomings of the prior art.

[0015] In order to achieve the above-mentioned purposes, the present application adopts the following technical scheme:

[0016] The use method of the powder conveying system with air quality regulation function uses the powder conveying system with air quality regulation function according to any one of the purposes of the present application, and comprises the following steps:

[0017] Step A: starting the Roots blower, the ultraviolet sterilizer and the humidity sensor, and the humidity sensor detects the air humidity at the output end of the exhaust pipeline in real time;

[0018] Step B1: When the humidity sensor detects that the air humidity is 45% to 70%, the first electronic dual-way valve closes the input end of the first branch pipe and the total input end of the control pipe, the first electronic dual-way valve connects the input end of the second branch pipe and the total input end of the control pipe, the second electronic dual-way valve connects the input end of the second branch pipe and the total input end of the control pipe, and the second electronic dual-way valve closes the input end of the third branch pipe and the total input end of the control pipe.

[0019] Step B2: When the humidity sensor detects that the air humidity is less than 45%, the air humidifier is activated. The first electronic dual-way valve connects the input end of the first branch pipe with the total input end of the control pipe. The first electronic dual-way valve closes the input end of the second branch pipe with the total input end of the control pipe. The second electronic dual-way valve connects the input end of the second branch pipe with the total input end of the control pipe. The second electronic dual-way valve closes the input end of the third branch pipe with the total input end of the control pipe.

[0020] Step B3: When the humidity sensor detects that the air humidity is greater than 70%, the air dryer is activated. The first electronic dual-way valve closes the input end of the first branch pipe and the total input end of the control pipe. The first electronic dual-way valve connects the input end of the second branch pipe and the total input end of the control pipe. The second electronic dual-way valve closes the input end of the second branch pipe and the total input end of the control pipe. The second electronic dual-way valve connects the input end of the third branch pipe and the total input end of the control pipe.

[0021] As a preferred embodiment of the method of using the powder conveying system with air quality control function described in this invention, step A further includes: starting the circulation pump and temperature sensor, wherein the temperature sensor detects the air temperature at the outlet of the exhaust duct in real time.

[0022] The second objective of this invention is to achieve the following beneficial effects: By setting up an air quality control system, this invention enables the air source of the Roots blower to be filtered, purified, sterilized, and kept at a suitable humidity for powder production. This makes the air source of the Roots blower suitable for the powder conveying system, avoiding excessive total microbial content and moisture content in the powder, thus improving the product quality of the powder and enabling the powder conveying system to have an air quality control function. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0025] Figure 3 for Figure 1 A magnified view of region B in the middle.

[0026] In the figure: 1 - Roots blower; 2 - exhaust duct; 3 - powder air lock; 4 - conveying duct; 51 - regulating duct; 511 - first branch duct; 512 - second branch duct; 513 - third branch duct; 52 - air filter; 53 - air humidifier; 54 - air dryer; 55 - ultraviolet sterilizer; 56 - humidity sensor; 57 - temperature sensor; 61 - first electronic two-way valve; 62 - second electronic two-way valve; 71 - first one-way valve; 72 - second one-way valve; 73 - third one-way valve; 74 - fourth one-way valve; 8 - heat exchanger; 9 - control processor. DETAILED DESCRIPTION

[0027] In order to make the technical solutions and advantages of the present application clearer, the present application and its beneficial effects will be further described in detail below with specific embodiments and the accompanying drawings of the specification, but the embodiments of the present application are not limited thereto.

[0028] Example 1

[0029] As Figures 1 to 3The powder conveying system with air quality regulation function is shown in sequence of powder conveying and sequentially comprises a Roots blower 1, an exhaust duct 2, a powder air lock 3 and a conveying duct 4. The output end of the Roots blower 1 is communicated with the input end of the exhaust duct 2. The output end of the exhaust duct 2 is communicated with the input end of the conveying duct 4 through the powder air lock 3. The powder air lock 3 is communicated with the flour powder distribution system. The powder conveying system with air quality regulation function further comprises an air quality regulation system. The air quality regulation system comprises a regulation duct 51, an air filter 52, an air humidifier 53, an air dryer 54, an ultraviolet sterilizer 55, a humidity sensor 56 and a control processor 9. The total input end of the regulation duct 51 is communicated with the external environment through the air filter 52. The total output end of the regulation duct 51 is communicated with the input end of the Roots blower 1 through the ultraviolet sterilizer 55. The humidity sensor 56 is arranged at the output end of the exhaust duct 2. The regulation duct 51 comprises a first branch duct 511, a second branch duct 512 and a third branch duct 513. The total input end of the regulation duct 51 is communicated with the input end of the first branch duct 511 and the input end of the second branch duct 512 through a first electronic double-way valve 61. The first branch duct 511 is internally provided with the air humidifier 53. The total input end of the regulation duct 51 is communicated with the input end of the second branch duct 512 and the input end of the third branch duct 513 through a second electronic double-way valve 62. The third branch duct 513 is internally provided with the air dryer 54. The total output end of the regulation duct 51 is communicated with the output end of the first branch duct 511, the output end of the second branch duct 512 and the output end of the third branch duct 513. The control processor 9 is electrically connected with the air filter 52, the air humidifier 53, the air dryer 54, the ultraviolet sterilizer 55, the humidity sensor 56, the first electronic double-way valve 61 and the second electronic double-way valve 62. Specifically, the air humidifier 53 is a device of the prior art. The air humidifier 53 mainly comprises an ultrasonic humidifier, a direct evaporation type humidifier and an electric heating type humidifier. The water source of the air humidifier 53 is pure water. The corresponding air humidifier 53 is selected according to actual production needs. The air dryer 54 is a device of the prior art. The air dryer 54 is a mechanical device that vaporizes and escapes moisture in the air through heating. The ultraviolet sterilizer 55 is a device of the prior art. The ultraviolet sterilizer 55 is a device that kills bacteria and other microorganisms through ultraviolet irradiation with a certain energy. The control processor 9 is a PLC control processor.Firstly, the air of the external environment enters into the regulating pipeline 51 through the air filter 52, and the air is filtered of particulate dust under the action of the air filter 52; then, the air in the regulating pipeline 51 enters into the exhaust pipeline 2 through the ultraviolet sterilizer 55 under the action of the Roots blower 1; when the air passes through the regulating pipeline 51, the regulating pipeline 51 is connected to the corresponding branch pipeline according to the detection result of the humidity sensor 56 to adjust the air humidity; under the action of the ultraviolet sterilizer 55, the ultraviolet sterilizer 55 can disinfect and sterilize the air; finally, the air of the exhaust pipeline 2 is mixed with the powder through the powder air lock 3 and enters into the inside of the material conveying pipeline 4.

[0030] The embodiment has the beneficial effects that: the embodiment sets the air quality regulating system, so that the air source of the Roots blower 1 can be filtered, disinfected and sterilized, and the humidity suitable for powder production is maintained, so that the air source of the Roots blower 1 is suitable for the powder conveying system, the situation that the total amount of microorganisms and the moisture of the powder exceed the standard is avoided, the product quality of the powder is improved, and the powder conveying system has the air quality regulating function. Specifically, the embodiment sets the air filter 52 at the total input end of the regulating pipeline 51, so that the air of the external environment can be filtered of particulate dust through the total input end of the regulating pipeline 51 to avoid that the powder has particulate dust; the embodiment sets the ultraviolet sterilizer 55 at the total output end of the regulating pipeline 51, so that the air can be disinfected and sterilized through the total output end of the regulating pipeline 51 to avoid that the total amount of microorganisms of the powder exceeds the standard; the embodiment sets the air humidifier 53 in the first branch pipeline 511, so that the air can increase the humidity through the first branch pipeline 511 to meet the humidity of the powder production; the embodiment sets the air dryer 54 in the third branch pipeline 513, so that the air can reduce the humidity through the third branch pipeline 513 to meet the humidity of the powder production; the embodiment sets the humidity sensor 56 at the output end of the exhaust pipeline 2, so that the air quality regulating system can detect the air humidity at the output end of the exhaust pipeline 2 in real time, so that the air quality regulating system can dynamically adjust the opening and closing state of the first electronic double-way valve 61 and the second electronic double-way valve 62 according to the air humidity at the output end of the exhaust pipeline 2, and then the air flows into the corresponding branch pipeline of the regulating pipeline 51, so as to ensure that the air humidity of the air source of the Roots blower 1 meets the needs of the powder production.

[0031] Preferably, the air quality regulation system further comprises a heat exchanger 8 and a cooling water tank, the cooling water tank being in communication with the input end of the heat exchanger 8 and the output end of the heat exchanger 8 respectively, the cooling water tank containing cooling liquid therein, the heat exchanger 8 being sleeved on the outer circumferential surface of the exhaust duct 2, the cooling water tank being provided with a circulating pump for circulating and delivering the cooling liquid to the inside of the heat exchanger 8, the circulating pump being electrically connected with the control processor 9. Through the above arrangement, the heat exchanger 8 can lower the temperature of the air inside the exhaust duct 2, so as to avoid the over-high temperature of the air providing conditions for the breeding of bacteria and improve the product quality of the powder.

[0032] Preferably, a temperature sensor 57 is arranged at the output end of the exhaust duct 2, and the temperature sensor 57 is electrically connected with the control processor 9. Through the above arrangement, the air quality regulation system can detect the temperature of the air at the output end of the exhaust duct 2 in real time.

[0033] Preferably, a first one-way valve 71 is arranged at the output end of the first branch duct 511, the first one-way valve 71 allowing the air to pass in the direction from the output end of the first branch duct 511 to the total output end of the regulation duct 51, a second one-way valve 72 is arranged at the output end of the second branch duct 512, the second one-way valve 72 allowing the air to pass in the direction from the output end of the second branch duct 512 to the total output end of the regulation duct 51, and a third one-way valve 73 is arranged at the output end of the third branch duct 513, the third one-way valve 73 allowing the air to pass in the direction from the output end of the third branch duct 513 to the total output end of the regulation duct 51. Through the above arrangement, the air inside the regulation duct 51 only passes through a single branch duct, so as to avoid the air entering other branch ducts to affect the humidity thereof.

[0034] Preferably, a fourth one-way valve 74 is arranged at the input end of the exhaust duct 2, the fourth one-way valve 74 allowing the air to pass in the direction from the output end of the Roots blower 1 to the input end of the exhaust duct 2. Through the above arrangement, the air inside the exhaust duct 2 flows in a one-way direction.

[0035] Preferably, the air filter 52 comprises, from the outside to the inside, a first air filter screen, a second air filter screen and a third air filter screen, the first air filter screen having a mesh number of 2 meshes and a pore diameter of 12.5 mm, the second air filter screen having a mesh number of 12 meshes and a pore diameter of 1.6 mm, and the third air filter screen having a mesh number of 150 meshes and a pore diameter of 0.1 mm. According to actual conditions, a suitable air filter 52 is selected.

[0036] Example 2

[0037] The use method of the powder conveying system with air quality regulation function, using the powder conveying system with air quality regulation function in any one of the examples 1, comprises the following steps:

[0038] Step S10, start the Roots blower 1, ultraviolet sterilizer 55 and humidity sensor 56, humidity sensor 56 real-time detection of air humidity at the output end of the exhaust duct 2.

[0039] Step S21, when the humidity sensor 56 detects that the air humidity is 45%~70%, the first electronic double valve 61 makes the input end of the first branch pipe 511 and the total input end of the regulation pipe 51 closed, the first electronic double valve 61 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 connected, the second electronic double valve 62 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 connected, the second electronic double valve 62 makes the input end of the third branch pipe 513 and the total input end of the regulation pipe 51 closed. At this time, the air in the regulation pipe 51 enters the input end of the Roots blower 1 through the second branch pipe 512, so that the air humidity of the air source of the Roots blower 1 remains unchanged. Among them, when the air humidity is 45%~70%, it is suitable for powder conveying.

[0040] Step S22, when the humidity sensor 56 detects that the air humidity is less than 45%, start the air humidifier 53, the first electronic double valve 61 makes the input end of the first branch pipe 511 and the total input end of the regulation pipe 51 connected, the first electronic double valve 61 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 closed, the second electronic double valve 62 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 connected, the second electronic double valve 62 makes the input end of the third branch pipe 513 and the total input end of the regulation pipe 51 closed. At this time, the air in the regulation pipe 51 enters the input end of the Roots blower 1 through the first branch pipe 511, so that the air humidity of the air source of the Roots blower 1 is improved.

[0041] Step S23, when the humidity sensor 56 detects that the air humidity is greater than 70%, start the air dryer 54, the first electronic double valve 61 makes the input end of the first branch pipe 511 and the total input end of the regulation pipe 51 closed, the first electronic double valve 61 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 connected, the second electronic double valve 62 makes the input end of the second branch pipe 512 and the total input end of the regulation pipe 51 closed, the second electronic double valve 62 makes the input end of the third branch pipe 513 and the total input end of the regulation pipe 51 connected. At this time, the air in the regulation pipe 51 enters the input end of the Roots blower 1 through the third branch pipe 513, so that the air humidity of the air source of the Roots blower 1 is reduced.

[0042] The embodiment has the beneficial effects that: the embodiment sets the air quality regulation system, so that the air source of the Roots blower 1 can be filtered, sterilized, and kept at a humidity suitable for powder production, so that the air source of the Roots blower 1 is suitable for the powder conveying system, avoids the situation that the total amount of microorganisms and the moisture of the powder exceed the standard, improves the product quality of the powder, and makes the powder conveying system have the air quality regulation function. Specifically, the embodiment sets the air filter 52 at the total input end of the regulation pipeline 51, so that the air of the external environment can filter out the particle dust itself through the total input end of the regulation pipeline 51 to avoid that the powder has particle dust; the embodiment sets the ultraviolet sterilizer 55 at the total output end of the regulation pipeline 51, so that the air can be sterilized through the total output end of the regulation pipeline 51 to avoid that the total amount of microorganisms of the powder exceeds the standard; the embodiment sets the air humidifier 53 inside the first branch pipeline 511, so that the air can increase the humidity through the first branch pipeline 511 to meet the humidity of the powder production; the embodiment sets the air dryer 54 inside the third branch pipeline 513, so that the air can reduce the humidity through the third branch pipeline 513 to meet the humidity of the powder production; the embodiment sets the humidity sensor 56 at the output end of the exhaust pipeline 2, so that the air quality regulation system can detect the air humidity at the output end of the exhaust pipeline 2 in real time, so that the air quality regulation system can dynamically adjust the opening and closing state of the first electronic double-way valve 61 and the second electronic double-way valve 62 according to the air humidity at the output end of the exhaust pipeline 2, and then the air flows into the corresponding branch pipeline of the regulation pipeline 51, so as to ensure that the air humidity of the air source of the Roots blower 1 meets the needs of the powder production.

[0043] Preferably, step 10 further comprises: starting the circulating pump and the temperature sensor 57, and the temperature sensor 57 detects the air temperature at the output end of the exhaust pipeline 2 in real time. Through the above setting, the air quality regulation system can detect the air temperature at the output end of the exhaust pipeline 2 in real time.

[0044] More preferably, it further comprises: step 30, when the humidity sensor 56 detects that the air temperature is greater than 25℃, the working power of the circulating pump is increased. Through the above setting, the air quality regulation system can detect the air temperature at the output end of the exhaust pipeline 2 in real time, so that the air quality regulation system can dynamically adjust the working power of the circulating pump according to the air temperature at the output end of the exhaust pipeline 2, and then ensure that the air temperature of the exhaust pipeline 2 meets the needs of the powder production.

[0045] Those skilled in the art can make various modifications and variations to the above embodiments based on the disclosure and teachings of this specification. Therefore, the present application should not be limited to the above specific embodiments, and any obvious modifications, replacements or variations made by those skilled in the art based on the present application shall fall within the scope of the present application. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation on the present application.

Claims

1. A powder conveying system with air quality regulation function, comprising in sequence of powder conveying a Roots blower (1), an exhaust air duct (2), a powder air lock (3) and a conveying duct (4), the output end of the Roots blower (1) is communicated with the input end of the exhaust air duct (2), the output end of the exhaust air duct (2) is communicated with the input end of the conveying duct (4) through the powder air lock (3), characterized in that: The air quality regulation system comprises a regulation pipeline (51), an air filter (52), an air humidifier (53), an air dryer (54), an ultraviolet sterilizer (55), a humidity sensor (56), and a control processor (9). The total input end of the regulation pipeline (51) is communicated with the external environment through the air filter (52), the total output end of the regulation pipeline (51) is communicated with the input end of the Roots blower (1) through the ultraviolet sterilizer (55), the humidity sensor (56) is arranged at the output end of the exhaust pipeline (2), the regulation pipeline (51) comprises a first branch pipeline (511), a second branch pipeline (512), and a third branch pipeline (513), the total input end of the regulation pipeline (51) is respectively communicated with the input end of the first branch pipeline (511) and the input end of the second branch pipeline (512) through a first electronic double-way valve (61), the first branch pipeline (511) is internally provided with the air humidifier (53), the total input end of the regulation pipeline (51) is respectively communicated with the input end of the second branch pipeline (512) and the input end of the third branch pipeline (513) through a second electronic double-way valve (62), the third branch pipeline (513) is internally provided with the air dryer (54), the total output end of the regulation pipeline (51) is respectively communicated with the output end of the first branch pipeline (511), the output end of the second branch pipeline (512), and the output end of the third branch pipeline (513), and the control processor (9) is electrically connected with the air filter (52), the air humidifier (53), the air dryer (54), the ultraviolet sterilizer (55), the humidity sensor (56), the first electronic double-way valve (61), and the second electronic double-way valve (62). ​ A first one-way valve (71) is arranged at the output end of the first branch pipeline (511), the first one-way valve (71) allows air to pass in the direction from the output end of the first branch pipeline (511) to the total output end of the regulation pipeline (51) in one way, a second one-way valve (72) is arranged at the output end of the second branch pipeline (512), the second one-way valve (72) allows air to pass in the direction from the output end of the second branch pipeline (512) to the total output end of the regulation pipeline (51) in one way, and a third one-way valve (73) is arranged at the output end of the third branch pipeline (513), the third one-way valve (73) allows air to pass in the direction from the output end of the third branch pipeline (513) to the total output end of the regulation pipeline (51) in one way. A fourth one-way valve (74) is arranged at the input end of the exhaust pipeline (2), the fourth one-way valve (74) allows air to pass in the direction from the output end of the Roots blower (1) to the input end of the exhaust pipeline (2) in one way.

2. The powder delivery system with air quality regulation according to claim 1, characterized in that: The air quality regulation system further comprises a heat exchanger (8) and a cooling water tank, the cooling water tank is in communication with the input end of the heat exchanger (8) and the output end of the heat exchanger (8) respectively, the cooling water tank contains cooling liquid inside, the heat exchanger (8) is sleeved on the outer circumferential surface of the exhaust duct (2), a circulating pump for circulating and delivering the cooling liquid to the inside of the heat exchanger (8) is arranged on the cooling water tank, and the circulating pump is electrically connected with the control processor (9).

3. The powder delivery system with air quality regulation according to claim 2, wherein: A temperature sensor (57) is arranged at the output end of the exhaust duct (2), and the temperature sensor (57) is electrically connected with the control processor (9).

4. The powder delivery system with air quality regulation according to claim 1, wherein: The air filter (52) comprises, from outside to inside, a first air filter screen, a second air filter screen and a third air filter screen, the first air filter screen has a mesh number of 2 and a pore diameter of 12.5 mm, the second air filter screen has a mesh number of 12 and a pore diameter of 1.6 mm, and the third air filter screen has a mesh number of 150 and a pore diameter of 0.1 mm.

5. A method of using a powder delivery system having air quality conditioning functionality, the method comprising: providing a powder delivery system having an air quality conditioning functionality; and using the powder delivery system to deliver a powder to a target location. The powder conveying system with air quality regulation function according to any one of claims 1 to 4 is used, comprising the following steps: Step A, starting the Roots blower (1), the ultraviolet sterilizer (55) and the humidity sensor (56), the humidity sensor (56) detects the air humidity at the output end of the exhaust duct (2) in real time; Step B1, when the humidity sensor (56) detects that the air humidity is 45% to 70%, the first electronic double-way valve (61) closes the input end of the first branch duct (511) and the total input end of the regulation duct (51), the first electronic double-way valve (61) communicates the input end of the second branch duct (512) and the total input end of the regulation duct (51), the second electronic double-way valve (62) communicates the input end of the second branch duct (512) and the total input end of the regulation duct (51), and the second electronic double-way valve (62) closes the input end of the third branch duct (513) and the total input end of the regulation duct (51); Step B2, when the humidity sensor (56) detects that the air humidity is less than 45%, starting the air humidifier (53), the first electronic double-way valve (61) communicates the input end of the first branch duct (511) and the total input end of the regulation duct (51), the first electronic double-way valve (61) closes the input end of the second branch duct (512) and the total input end of the regulation duct (51), the second electronic double-way valve (62) communicates the input end of the second branch duct (512) and the total input end of the regulation duct (51), and the second electronic double-way valve (62) closes the input end of the third branch duct (513) and the total input end of the regulation duct (51); Step B3, when the humidity sensor (56) detects that the air humidity is greater than 70%, the air dryer (54) is started, the first electronic double-way valve (61) closes the input end of the first branch pipe (511) and the total input end of the regulating pipe (51), the first electronic double-way valve (61) connects the input end of the second branch pipe (512) and the total input end of the regulating pipe (51), the second electronic double-way valve (62) closes the input end of the second branch pipe (512) and the total input end of the regulating pipe (51), and the second electronic double-way valve (62) connects the input end of the third branch pipe (513) and the total input end of the regulating pipe (51).

6. The method of using a powder delivery system with air quality regulation according to claim 5, wherein, The step A further comprises: starting the circulating pump and the temperature sensor (57), and the temperature sensor (57) detects the air temperature at the output end of the exhaust pipe (2) in real time.

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