阅读说明：本技术 一种超细粉末防堵输送系统及其应用 (Ultrafine powder anti-blocking conveying system and application thereof ) 是由 刘银根 虞幸芝 张磊 于 2020-07-24 设计创作，主要内容包括：本发明涉及一种超细粉末防堵输送系统及其应用,该系统用于将超细粉末由设于低位的自动倒包站向设于高位的粉液混合分散设备输送,包括真空吸粉装置、吸粉管道、称重组件、真空度获取组件和防堵组件。与现有技术相比,本发明通过称重组件获取的质量差值与阈值的大小关系,来判定吸粉管道是否处于堵塞状况,并通过电子真空表获取各个点位真空度并将电信号发送至微处理器,微处理器根据相邻位点之间真空度之间的差值是否大于阈值,来判断该两个位点之间是否具有显著堵塞,以此获取堵塞的准确位置范围,显著提升了疏通的效率；通过微处理器指令两个位点之间的或邻近的防堵组件开启并喷出压缩空气,使得堵塞畅通,实现了精准的自动化清理疏通过程。(The invention relates to an ultrafine powder anti-blocking conveying system and application thereof, wherein the system is used for conveying ultrafine powder from an automatic ladle-pouring station arranged at a low position to a powder-liquid mixing and dispersing device arranged at a high position, and comprises a vacuum powder suction device, a powder suction pipeline, a weighing assembly, a vacuum degree acquisition assembly and an anti-blocking assembly. Compared with the prior art, the invention judges whether the powder suction pipeline is in a blocking state or not through the magnitude relation between the mass difference value obtained by the weighing component and the threshold value, obtains the vacuum degree of each point position through the electronic vacuum meter and sends an electric signal to the microprocessor, and the microprocessor judges whether the two point positions are obviously blocked or not according to whether the difference value between the vacuum degrees of the adjacent point positions is larger than the threshold value or not, so that the accurate position range of the blockage is obtained, and the dredging efficiency is obviously improved; the microprocessor instructs the anti-blocking component between the two sites or adjacent to the two sites to open and spray compressed air, so that the blockage is smooth, and the accurate automatic cleaning and dredging process is realized.)

1. The utility model provides a stifled conveying system is prevented to superfine powder for carry superfine powder to locating high-order powder-liquid mixing dispersion equipment (2) by locating automatic ladle station (1) of low level, its characterized in that includes:

the vacuum powder suction device (3) is arranged above the powder-liquid mixing and dispersing equipment (2), and the outlet end of the vacuum powder suction device (3) is connected with the inlet end of the powder-liquid mixing and dispersing equipment (2);

one end of the powder suction pipeline (4) is connected with an outlet of the automatic bag-pouring station (1), and the other end of the powder suction pipeline is connected with an inlet of the vacuum powder suction device (3);

the weighing assembly comprises a first weighing sensor (5) and a second weighing sensor (6) which are used for respectively acquiring the mass of the automatic ladle pouring station (1) and the mass of the powder-liquid mixing and dispersing equipment (2) in real time;

the vacuum degree acquisition assembly (12) is arranged on a plurality of point positions of the powder suction pipeline (4) and can acquire the vacuum degree of each point position in real time so as to acquire a blocking position;

and the anti-blocking component (7) is arranged at a plurality of point positions of the powder suction pipeline (4) and can send air pulse to a blocking area when the powder suction pipeline (4) is blocked.

2. An anti-blocking superfine powder conveying system according to claim 1, wherein the vacuum powder sucking device (3) is connected with a vacuum pump (8), and vacuum conveying suction is provided by the vacuum pump (8).

3. An anti-blocking superfine powder conveying system according to claim 2, wherein a filter screen is arranged on a suction port of the vacuum powder suction device (3) of the powder suction device (3) to prevent powder from being sucked out;

an electromagnetic discharge valve (9) is arranged at the outlet of the vacuum powder suction device (3).

4. An anti-blocking superfine powder conveying system according to claim 3, characterized in that a vacuum suction electromagnetic valve (10) is arranged between the vacuum powder suction device (3) and the vacuum pump (8).

5. An anti-clogging conveying system for ultrafine powder according to claim 4, characterized in that the first weighing sensor (5) is a pressure sensor arranged below a supporting arm of the automatic ladle-pouring station (1);

and the second weighing sensor (6) is a pressure sensor arranged below the powder-liquid mixing and dispersing equipment (2).

6. An ultrafine powder anti-clogging conveying system according to claim 5, characterized in that said vacuum degree obtaining module (12) comprises a plurality of electromagnetic pressure release valves provided on the powder suction pipe (4) and air compressors connected to the respective electromagnetic pressure release valves.

7. An anti-clogging ultra-fine powder conveying system as claimed in claim 6, wherein said vacuum degree obtaining assembly (12) is a plurality of electronic vacuum meters provided on the powder suction pipe (4).

8. An anti-blocking superfine powder conveying system according to claim 4, further comprising a microprocessor electrically connected with the vacuum suction solenoid valve (10), the first weighing sensor (5), the vacuum degree obtaining assembly (12), the electromagnetic discharge valve (9) and the anti-blocking assembly (7), respectively.

9. An anti-clogging ultra-fine powder conveying system as claimed in claim 1, wherein said ultra-fine powder is a powder having a particle size of 0 to 1000 μm.

10. Use of a delivery system according to any one of claims 1 to 9 for the low level to high level delivery of ultra fine powders comprising the steps of:

s1: the powder feeding electromagnetic valve (11) is opened, the microprocessor instructs the electromagnetic emptying valve (9) to be closed, the vacuum suction electromagnetic valve (10) is opened until the first weighing sensor (6) displays that the superfine powder in the automatic bag pouring station (1) is sucked out of the target mass, the microprocessor instructs the vacuum suction electromagnetic valve (10) to be closed at the moment, the electromagnetic emptying valve (9) is opened, and the superfine powder in the vacuum powder suction device (3) is input into the powder-liquid mixing and dispersing equipment (2);

s2: calculating the mass difference between the second weighing sensor (5) and the first weighing sensor (6), when the mass difference is greater than a set threshold value, the microprocessor instructs the electromagnetic emptying valve (9) to be closed, the vacuum suction electromagnetic valve (10) is opened, the electronic vacuum meter acquires the vacuum degree of each point position and sends an electric signal to the microprocessor, and the microprocessor judges whether the two points are obviously blocked according to whether the difference between the vacuum degrees of the adjacent points is greater than the threshold value;

s3: if the difference value between the vacuum degrees of the adjacent sites is larger than the threshold value, the microprocessor instructs the anti-blocking component (7) between the two sites or adjacent sites to open and spray compressed air, so that the blockage is smooth;

and if the difference value between the vacuum degrees of the adjacent sites is smaller than the threshold value, entering the conveying process of the next period.

Technical Field

The invention relates to the field of powder conveying, in particular to an anti-blocking ultrafine powder conveying system and application thereof.

Background

The dispersion process of can't leave superfine ultralight solid powder in the coating production of current solid-liquid mixture, when the in-process of mixing in liquid material is added to big superfine ultralight solid powder in batches (hereinafter all be referred to as the ultrafine powder for short), need unload to automatic the package station through the ultrafine powder of automatic package station with packing to need carry the ultrafine powder in the automatic package station of will falling of low level to locating high-order powder liquid mixing dispersion equipment (the ejection of compact that is used for flow on next step), realize ultrafine powder and liquid mixing.

With the popularization of the full-automatic production process in the paint production, the full-automatic liquid-solid mixing becomes a crucial batch-type industrial production process. In the process, due to reasons such as liquid volatilization and the like, the intermittent material suction device gradually blocks the ultrafine powder in the pipeline along with the time lapse of vacuum material suction, and finally cannot continuously suck the material, so that the progress of automatic production is hindered. At present, in the prior art, the pipeline is dredged only by manually disassembling and straightening the pipeline. The mediation in-process among the prior art can make the superfine powder that is detained in the pipeline expose and become the raise dust for production environment is abominable, and manual mediation process needs often to dismantle the pipeline simultaneously, and the clearance mediation process is comparatively slow, causes the transportation process inefficiency, influences holistic production efficiency.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an ultrafine powder anti-blocking conveying system and application thereof, which effectively overcome the defect that ultrafine powder blocks or stagnates in a pipeline, obviously reduce the loss of ultrafine powder, improve the automatic operation of mixing ultrafine powder and liquid, improve the feeding precision, ensure high-efficiency and convenient production, reduce the occurrence of raised dust, avoid the use of a dust removal device and protect the production environment.

The purpose of the invention can be realized by the following technical scheme:

the invention relates to an ultrafine powder conveying system, which is used for conveying ultrafine powder from an automatic ladle-pouring station arranged at a low position to a powder-liquid mixing and dispersing device arranged at a high position, and comprises a vacuum powder suction device, a powder suction pipeline, a weighing assembly, a vacuum degree acquisition assembly and an anti-blocking assembly, wherein the vacuum powder suction device specifically comprises:

the vacuum powder suction device is arranged above the powder-liquid mixing and dispersing equipment, and the outlet end of the vacuum powder suction device is connected with the inlet end of the powder-liquid mixing and dispersing equipment;

one end of the powder suction pipeline is connected with an outlet of the automatic bag-pouring station, and the other end of the powder suction pipeline is connected with an inlet of the vacuum powder suction device;

the weighing assembly comprises a first weighing sensor and a second weighing sensor which respectively acquire the mass of the automatic ladle pouring station and the mass of the powder-liquid mixing and dispersing equipment in real time;

the vacuum degree acquisition assembly is arranged on a plurality of point positions of the powder suction pipeline and can acquire the vacuum degree of each point position in real time so as to acquire the blocking position;

the anti-blocking component is arranged on a plurality of point positions of the powder suction pipeline and can send air pulse to a blocking area when the powder suction pipeline is blocked.

Further, the air pulse is compressed air of variable pressure.

Further, the vacuum powder suction device is connected with a vacuum pump, and a vacuum conveying suction force is provided through the vacuum pump.

Furthermore, a filter screen is arranged on a suction port of the vacuum powder suction device of the powder suction device, so that powder is prevented from being sucked out;

an electromagnetic discharge valve is arranged at the outlet of the vacuum powder suction device.

Further, a vacuum suction electromagnetic valve is arranged between the vacuum powder suction device and the vacuum pump.

Further, the first weighing sensor is a pressure sensor arranged below the supporting arm of the automatic bag-pouring station;

the second weighing sensor is a pressure sensor arranged below the powder-liquid mixing and dispersing equipment.

Wherein it is connected with the support body to support the arm, plays the supporting role, locates pressure sensor and can acquire the quality of automatic package station and second weighing sensor through pressure signal in real time below the support arm.

Further, the vacuum degree acquisition assembly comprises a plurality of electromagnetic pressure release valves arranged on the powder suction pipeline and air compressors connected with the electromagnetic pressure release valves respectively.

Further, the vacuum degree acquisition assembly is a plurality of electronic vacuum meters arranged on the powder suction pipeline.

Further, the superfine powder conveying system also comprises a microprocessor which is electrically connected with the vacuum suction electromagnetic valve, the first weighing sensor, the vacuum degree acquisition assembly, the electromagnetic discharge valve and the anti-blocking assembly respectively.

Further, the microprocessor is an ARM processor.

Further, the particle size of the ultrafine powder is 0 to 1000 [ mu ] m (excluding 0).

The application of the conveying system in conveying ultrafine powder from a low position to a high position comprises the following steps:

s1: the powder feeding electromagnetic valve is opened, the microprocessor instructs the electromagnetic emptying valve to be closed, the vacuum suction electromagnetic valve is opened until the first weighing sensor displays that the superfine powder in the automatic ladle-backing station is sucked out of the target mass, and the microprocessor instructs the vacuum suction electromagnetic valve to be closed, the electromagnetic emptying valve to be opened and the superfine powder in the vacuum powder suction device to be input into the powder-liquid mixing and dispersing equipment;

s2: calculating the mass difference between the second weighing sensor and the first weighing sensor, when the mass difference is greater than a set threshold value, the microprocessor instructs the electromagnetic emptying valve to be closed, the vacuum suction electromagnetic valve is opened, the electronic vacuum meter acquires the vacuum degree of each point position and sends an electric signal to the microprocessor, and the microprocessor judges whether the two points are obviously blocked according to whether the difference between the vacuum degrees of the adjacent points is greater than the threshold value;

s3: if the difference value between the vacuum degrees of the adjacent sites is larger than the threshold value, the microprocessor instructs the anti-blocking component between the two sites or adjacent sites to start and spray compressed air so as to ensure that the blockage is smooth;

and if the difference value between the vacuum degrees of the adjacent sites is smaller than the threshold value, entering the conveying process of the next period.

Compared with the prior art, the invention has the following advantages;

1. the invention effectively overcomes the defect that the ultrafine powder is blocked or stagnated in the pipeline, obviously reduces the loss of the ultrafine powder, improves the automatic operation of mixing the nanoscale powder and the liquid, improves the feeding precision, ensures high efficiency and convenience in production, reduces the occurrence of raised dust, avoids the use of a dust removal device and protects the production environment.

2. According to the invention, whether the powder suction pipeline is in a blocking state is judged according to the magnitude relation between the mass difference value obtained by the weighing component and the threshold, the vacuum degrees of all the point positions are obtained through the electronic vacuum meter, and the electric signals are sent to the microprocessor, and the microprocessor judges whether the two point positions are significantly blocked according to whether the difference value between the vacuum degrees of the adjacent point positions is larger than the threshold, so that the accurate position range of the blockage is obtained, and the dredging efficiency is significantly improved.

3. According to the invention, the microprocessor instructs the anti-blocking component between two sites or adjacent sites to open and spray compressed air, so that the blockage is smooth, the dredging process has a clear target, the accurate automatic cleaning and dredging process is realized, the manpower consumption is saved, and the overall production process efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an ultra-fine powder conveying system in the invention.

1. Automatic ladle to package station, 2, powder liquid mix dispersion equipment, 3, vacuum inhale powder device, 4, inhale the powder pipeline, 5, first weighing sensor, 6, second weighing sensor, 7, prevent stifled subassembly, 8, vacuum pump, 9, electromagnetic emptying valve, 10, vacuum suction solenoid valve, 11, advance the powder solenoid valve, 12, the subassembly is acquireed to the vacuum.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.