CN216971293U - Powder pneumatic conveying system - Google Patents

Abstract

The utility model relates to a powder pneumatic conveying system, which comprises a pneumatic conveying assembly, a data acquisition assembly, a communication module and a control module, wherein the data acquisition assembly and the control module transmit data through the communication module, and the pneumatic conveying system comprises: the pneumatic conveying assembly is used for collecting and transferring dust; the data acquisition assembly is used for acquiring working state data when the pneumatic conveying assembly operates and transmitting the working state data to the control module, and the working state data comprises air pressure data of all parts of the pipeline; and the control module adjusts the air pressure of the air flow output by the air source according to the working state data. The pneumatic dust conveying device can dynamically adjust the air pressure of the air flow output by the air source according to the conveying resistance of dust, reduce the idle work done by the pneumatic conveying assembly, reduce the energy consumption, reduce the dust amount conveyed in a dilute phase conveying mode, and further reduce the abrasion of the dust conveying process to a pipeline.

Description

Powder pneumatic conveying system

Technical Field

The utility model relates to the field of powder conveying, in particular to a pneumatic powder conveying system.

Background

The pneumatic powder conveying equipment is one kind of conveying equipment for industrial production and has airflow to convey powder inside sealed pipeline. The pneumatic conveying equipment generally comprises a first bin for preliminarily collecting powder, a bin pump for conveying the powder, an air source for providing air flow and a second bin for intensively collecting the powder, wherein the top end of the bin pump is communicated with the first bin, a pipeline is further arranged between the bin pump and the second bin for communicating, when the bin pump runs, the powder of the first bin is firstly input into the bin pump, the air source inputs the air flow into the bin pump, and the powder is driven to flow into the second bin through the pipeline. The powder can be conveyed along different directions by changing the installation direction of the pipeline, so that the powder conveying device is convenient to use.

When the bag-type dust collector is filtered, a pneumatic conveying device is generally arranged to transfer dust collected by the bag. In the process of conveying dust, the types, the particle sizes and the conveying amount of the dust are changed continuously, and the operation mode of the pneumatic conveying equipment is difficult to adjust the adaptability according to the factors. In view of the above-mentioned current situation, the conventional pneumatic conveying equipment has the following problems in terms of operation, maintenance, and maintenance:

1. the output force of the pneumatic conveying equipment during operation is difficult to adapt to the requirement of dust conveying, and the designed output force of the pneumatic conveying equipment can leave a certain margin which is about 120-200% of the actual conveying amount of materials. Even if the dust remover runs at full load, 15% -50% of the equipment can still do useless work, and if the working load of the dust remover is reduced, the proportion of the useless work done by the pneumatic conveying equipment is larger. In addition, as the useless work done by pneumatic conveying equipment is increased, the conveying form of dust is changed into dilute phase conveying, the energy consumption of the conveying mode is higher, and the abrasion to the pipeline is increased.

2. In the dust conveying process, the operation state of the pneumatic conveying equipment is not ideal, so that a scientific maintenance plan and a maintenance scheme are difficult to make for the pneumatic conveying equipment, and the service life of the equipment is shortened.

3. When the powder pneumatic conveying equipment breaks down, the powder pneumatic conveying equipment is difficult to locate and know the clear failure reason, and needs to be checked gradually by workers on site, so that the powder pneumatic conveying equipment is inconvenient to maintain.

4. The operation condition of the powder pneumatic conveying equipment is observed or data are collected by staff regularly, the operation condition of the equipment is difficult to know in time, and if the staff cannot find problems in time and replace and maintain accessories, the abrasion of a pipeline elbow can occur, so that the dust leakage pollutes a factory area. In addition, if powder pneumatic conveyor takes place to block up, then the sack cleaner also is difficult to normal operating, leads to stifled pipe and ash bucket deposition problem, and the flue gas pressure differential grow of sack cleaner air intake and air outlet accelerates the filter bag or strains a section of thick bamboo wearing and tearing, still can increase the draught fan work load of suction flue gas simultaneously, reduces the life of draught fan.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings in the prior art, it is an object of the present invention to provide a pneumatic powder conveying system to solve one or more of the problems in the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a powder pneumatic conveying system, includes pneumatic conveying subassembly, data acquisition subassembly, communication module and control module, the data acquisition subassembly with control module passes through communication module transmission data, wherein:

the pneumatic conveying assembly is used for collecting and transferring dust;

the data acquisition assembly is used for acquiring working state data when the pneumatic conveying assembly operates and transmitting the working state data to the control module, and the working state data comprises air pressure data of each part of the pipeline;

and the control module adjusts the air pressure of the air flow output by the air source according to the working state data.

Further, the operating state data further includes at least one of:

particle size data of dust in the bin pump;

weight data of dust in the bin pump;

the air source outputs air pressure data of air flow;

the air source outputs flow data of the air flow.

Further, the pneumatic conveying assembly comprises a first bin for preliminarily collecting dust, a bin pump for conveying the dust, an air source for providing air flow and a second bin for intensively collecting the dust, the top end of the bin pump is communicated with the first bin, the bin pump is connected with a first valve arranged between the first bin, and a pipeline is further arranged between the bin pump and the second bin.

Further, the air supply intercommunication has a strength valves and a plurality of boosting valves, the gas outlet of strength valves with the storehouse pump inner wall intercommunication, the gas outlet of boosting valves all with the inner wall intercommunication of pipeline, a plurality of boosting valves with intercommunication node between the pipeline is followed the length direction of pipeline is arranged.

Further, the bin pump is further provided with an exhaust valve which is communicated with an exhaust pipe and communicated with an ash bucket of the bag-type dust collector through the exhaust pipe.

Further, the collection of the particle size data of the dust in the bin pump is realized through a particle size detection sensor, and the particle size detection sensor is arranged between the first bin and the bin pump.

Further, still including being used for supporting the support of storehouse pump, the support with be equipped with weighing sensor between the storehouse pump, weighing sensor is used for measuring the weight data of dust in the storehouse pump.

Further, the second storage bin is provided with a vacuum air pressure release valve.

And the data acquisition assembly transmits acquired working state data to the industrial personal computer through the communication module.

Furthermore, the system also comprises a remote computer, and the data acquisition assembly transmits the collected working state data to the remote computer through the communication module.

Compared with the prior art, the utility model has the following beneficial technical effects:

adjusting the operation mode of the pneumatic conveying assembly according to the working state data, for example, monitoring the air pressure data of each part of a pipeline when the pneumatic conveying assembly conveys dust, and knowing the pressure difference data among all parts of the pipeline, so as to analyze the resistance of conveying dust in the pipeline, and increasing the air pressure of air flow output by an air source when the resistance of conveying dust is increased; when the resistance of conveying dust is reduced, the air pressure of the air flow output by the air source is reduced. The air pressure of the air flow output by the air source is dynamically adjusted according to the conveying resistance of the dust, the idle work done by the pneumatic conveying assembly can be reduced, the energy consumption is reduced, the dust quantity conveyed in a dilute phase conveying mode is reduced, and the abrasion of the dust conveying process to a pipeline is further reduced.

And (II) after the pneumatic conveying assembly is installed, debugging and running are firstly carried out, working state data such as air pressure data of air source output airflow, air pressure data of each part of the pipeline, flow data of the air source output airflow, particle size data of dust in the bin pump, weight data of the dust in the bin pump and the like are collected and recorded, and when the particle size data of the dust in the bin pump and the weight data of the dust in the bin pump change, standard change rules of the air pressure data of the air source output airflow, the air pressure data of each part of the pipeline and the flow data of the air source output airflow are recorded. When the pneumatic conveying assembly operates, the working state data are continuously monitored, the change rule among the air pressure data of the air source output airflow, the air pressure data of each part of the pipeline and the flow data of the air source output airflow is compared with the standard change rule according to the particle size data of the dust in the bin pump and the weight data of the dust in the bin pump, and if the difference between the change rule and the standard change rule is larger, a maintenance plan and a maintenance scheme need to be set in time.

(III) the air supply passes through the dust removal in the strength valves promotion storehouse pump, along with the conveying distance increase, need increase the output atmospheric pressure of air supply, in order to reduce the demand to air supply output atmospheric pressure, the air supply still communicates there is a plurality of boosting valves, the length direction of pipeline is arranged along to the boosting valves, the air supply can directly export the air current in to the pipeline through the boosting valves, promote the dust removal in the pipeline, the conveying distance that strength valves and each boosting valves promoted the dust has been reduced promptly, and then reduced the demand to air supply output atmospheric pressure, reduce the energy consumption.

And (IV) when the pneumatic conveying assembly is required to be stopped or other requirements exist, the worker opens the exhaust valve, gas in the bin pump can be discharged, the gas in the bin pump is guided to the ash bucket through the exhaust pipe, the side wall of the ash bucket can be flushed by utilizing the gas flow during discharging, and the dust attached to the side wall of the ash bucket is reduced.

And (V) debugging and running the pneumatic conveying assembly after installation, acquiring and recording working state data such as air pressure data of air source output airflow, air pressure data of each part of the pipeline, flow data of the air source output airflow and the like, and setting a standard change range according to the recorded working state data. And in the operation process of the pneumatic conveying assembly, continuously acquiring the air pressure data of the source output airflow, the air pressure data of each part of the pipeline and the flow of the air source output airflow. When the pneumatic conveying assembly breaks down, the working state data which is firstly separated from the standard change range is checked and analyzed, and the position where the pneumatic conveying assembly breaks down can be judged without being checked step by step on site, so that the pneumatic conveying assembly is convenient to maintain.

And (VI) debugging and operating the pneumatic conveying assembly after installation, acquiring and recording working state data such as air pressure data of air source output airflow, air pressure data of each part of the pipeline, flow data of the air source output airflow and the like, setting a standard change range according to the recorded working state data, and causing the working state data to be changed violently if an accident occurs in the operation process of the pneumatic conveying assembly. The data acquisition subassembly sends operating condition data to the remote computer, if the remote computer detects that operating condition data takes place the violent change and breaks away from standard variation range, then reminds the staff to pay attention to pneumatic conveying assembly's operational problem, can guarantee that the staff in time discovers pneumatic conveying assembly's operational problem, overhauls pneumatic conveying assembly.

Drawings

FIG. 1 is a schematic structural diagram of a pneumatic powder conveying system in an embodiment of the utility model;

fig. 2 shows a schematic connection diagram between the first silo and the silo pump in the embodiment of the utility model.

In the drawings, the reference numbers:

1. a bag-type dust collector; 11. a buried scraper conveyor; 2. a first storage bin; 21. a first high level gauge; 22. a first low level indicator; 23. a particle diameter detection sensor; 24. a hose; 25. a first valve; 3. a bin pump; 31. a weighing sensor; 32. an exhaust valve; 321. an exhaust pipe; 4. a pipeline; 41. a second pressure transmitter; 5. a second storage bin; 51. a second high level gauge; 52. a second low level indicator; 53. a discharge box; 54. a vacuum pressure release valve; 55. a pulse blowing bag type dust collector; 56. a third valve; 6. a gas source; 61. a first pressure transmitter; 62. a flow meter; 63. a second valve; 64. a pneumatic valve bank; 65. a boost valve bank; 7. a communication module; 71. a controller; 72. an industrial personal computer; 73. a remote computer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the pneumatic powder conveying system provided by the present invention is further described in detail with reference to the accompanying drawings and the detailed description below. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, etc. shown in the drawings and attached to the description are only for understanding and reading the disclosure of the present disclosure, and are not for limiting the scope of the present disclosure, so they do not have the essential meaning in the art, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure.

Examples

Referring to fig. 1 and fig. 2, the present application provides a pneumatic powder conveying system, which includes a pneumatic conveying assembly, a data collecting assembly, a communication module 7, a controller 71, an industrial personal computer 72, and a remote computer 73, wherein the communication module 7 is configured to transmit data among the data collecting assembly, the controller 71, the industrial personal computer 72, and the remote computer 73, and wherein:

the pneumatic conveying assembly is used for collecting and transferring dust;

the data acquisition assembly is used for collecting working state data when the pneumatic transmission assembly runs and transmitting the working state data to the controller 71;

and the controller 71 adjusts the operation of the pneumatic conveying assembly according to the working state data.

Referring to fig. 1 and 2, specifically, the pneumatic conveying assembly includes a first bin 2 for primarily collecting dust, a bin pump 3 for conveying the dust, an air source 6 for providing an air flow, and a second bin 5 for centrally collecting the dust, an opening at a top end of the bin pump 3 (i.e., a feed inlet of the bin pump 3) is communicated with the first bin 2, a first valve 25 is further disposed between the bin pump 3 and the first bin 2, and a pipeline 4 is further disposed between the bin pump 3 and the second bin 5 for communicating. The top end opening of first feed bin 2 is used for supplying the dust input, and the intercommunication has hose 24 between the bottom end opening of first feed bin 2 and the top end opening of storehouse pump 3, installs first valve 25 between hose 24 and the top end opening of storehouse pump 3, and the first valve 25 of switching can control the intercommunication relation between storehouse pump 3 and first feed bin 2 to control the circulation of dust to storehouse pump 3. The air source 6 is communicated with the bin pump 3, and after the first valve 25 is closed, the air source 6 conveys air flow to the bin pump 3, so that dust in the bin pump 3 can be pushed to be conveyed to the second bin 5 along the pipeline 4. In this embodiment, the flexible tube 24 may be a plastic flexible tube 24 or a metal flexible tube 24, and the metal flexible tube 24 has better wear resistance.

Referring to fig. 1 and 2, in this embodiment, the pneumatic conveying assembly is used for conveying dust collected by the bag-type dust collector 1, the buried scraper conveyor 11 is installed at the bottom end of the bag-type dust collector 1, bottom openings of the dust hoppers of the bag-type dust collector 1 are all communicated with the buried scraper conveyor 11, one end of the buried scraper conveyor 11 points to a top opening of the first bin 2 when the bag-type dust collector 1 operates, and when the buried scraper conveyor 11 operates, the dust collected by the dust hoppers is spilled into the first bin 2 from the top opening of the first bin 2.

Referring to fig. 1 and fig. 2, specifically, the air source 6 is communicated with a second valve 63, and is communicated with one pneumatic valve set 64 and four boosting valve sets 65 through the second valve 63, the pneumatic valve set 64 is connected in parallel with the four boosting valve sets 65, and the air source 6, the second valve 63, the pneumatic valve set 64 and the boosting valve sets 65 are communicated through a plurality of air transmission pipelines. The pneumatic valve group 64 and the boosting valve group 65 both comprise four flow regulating valves which are connected in parallel, the flow regulating valves of the pneumatic valve group 64 are communicated with the inner wall of the bin pump 3, and four connecting nodes between the pneumatic valve group 64 and the bin pump 3 are arranged along the flowing direction of dust in the bin pump 3. The four boosting valve groups 65 are uniformly arranged along the length direction of the pipeline 4, that is, the connection nodes between the four boosting valve groups 65 and the pipeline 4 are uniformly arranged along the length direction of the pipeline 4, and meanwhile, the four flow regulating valves of each boosting valve group 65 are arranged along the length direction of the pipeline 4 and communicated with the inner wall of the pipeline 4.

Referring to fig. 1 and fig. 2, further, an exhaust valve 32 is further installed on the top surface of the bin pump 3, an opening at one end of the exhaust valve 32 is communicated with the inner wall of the bin pump 3, and an opening at the other end of the exhaust valve 32 is communicated with an exhaust pipe 321. One end of the exhaust pipe 321 is communicated with the exhaust valve 32, and the other end is communicated with the inner side wall of the ash bucket of the bag-type dust collector 1.

Referring to fig. 1 and 2, in particular, a discharge box 53, a vacuum pressure release valve 54 and a pulse blowing bag type dust collector 55 are installed at the top end of the second silo 5, and a third valve 56 is installed at the bottom end of the second silo 5. In this embodiment, the discharge box 53 is welded on the top surface of the second storage bin 5, and the bottom end of the discharge box 53 is communicated with the bin of the second storage bin 5; the vacuum air pressure release valve 54 is used for protecting the second silo 5 from excessive positive pressure and negative pressure; when the air flow output by the air source 6 flows into the second storage bin 5 and then flows out of the pulse blowing bag type dust collector 55, the pulse blowing bag type dust collector 55 is used for filtering dust mixed in the air flow, so that the dust is prevented from overflowing along with the air flow to pollute the environment of a factory building. In this embodiment, the one end of pipeline 4 and the bottom opening intercommunication of storehouse pump 3, the other end of pipeline 4 and the lateral wall intercommunication of discharge box 53, at the in-process of carrying the dust, the dust in the pipeline 4 is carried to the discharge box 53 at first in, and the dust falls into second feed bin 5 from the discharge box 53 afterwards.

Referring to fig. 1 and fig. 2, in particular, the data acquisition assembly includes: first high level indicator 21, first low level indicator 22, second high level indicator 51, second low level indicator 52, particle size detection sensor 23, weighing sensor 31, first pressure transmitter 61, flowmeter 62, second pressure transmitter 41, wherein:

the first high level indicator 21 and the first low level indicator 22 are both arranged on the side wall of the first storage bin 2, and the installation position of the first high level indicator 21 is higher than that of the first low level indicator 22; the second high level gauge 51 and the second low level gauge 52 are both installed at a side wall of the second bunker 5, and the installation position of the second high level gauge 51 is higher than that of the second low level gauge 52. The first high level indicator 21 is matched with the first low level indicator 22 and used for monitoring the dust storage amount in the first storage bin 2; the second high level gauge 51 cooperates with the second low level gauge 52 for monitoring the amount of dust stored in the second silo 5. When the first silo 2 is monitored to be emptied or the second silo 5 is monitored to be full, the controller 71 controls the pneumatic conveying assembly to stop running.

In this embodiment, particle size detection sensor 23 is installed between first feed bin 2 and hose 24, and particle size detection sensor 23 can detect the particle size of dust, can analyze the average particle size of storehouse pump 3 dust of filling at every turn according to the particle size data that measure to know the resistance change when carrying the dust.

The bin pump 3 is arranged on a support (not shown in the figure), the support is used for supporting the bin pump 3, the weighing sensor 31 is arranged between the support and the bin pump 3, the weighing sensor 31 can measure the weight of the bin pump 3 before and after dust is filled when the bin pump works, and the weight data of the dust in the bin pump 3 can be obtained by subtracting the weight data.

Referring to fig. 1 and 2, a first pressure transmitter 61 and a flow meter 62 are connected in series between the second valve 63 and the gas source 6, the first pressure transmitter 61 is used for detecting the gas pressure of the gas flow output from the gas source 6, and the flow meter 62 is used for detecting the flow rate of the gas flow output from the gas source 6. In this embodiment, the pipeline 4 is further connected with four second pressure transmitters 41, and the four second pressure transmitters 41 are uniformly arranged along the length direction of the pipeline 4 (i.e., the pipeline 4 is divided into four parts with the same length along the length direction, and the four second pressure transmitters 41 are used to measure air pressure data of each part of the pipeline 4 respectively). It should be noted that, when measuring the air pressure data of each part of the pipeline 4, the length of each part of the pipeline 4 should be adjusted and the number of the parts of the pipeline 4 should be increased or decreased according to the requirement of the measurement accuracy, and the specific division rule is not described herein again.

In this embodiment, the working state data to be measured includes air pressure data of the air flow output by the air source 6, air pressure data of each portion of the pipeline 4 (which may be used to calculate pressure difference data between each portion of the pipeline 4), particle size data of the dust in the bin pump 3, weight data of the dust in the bin pump 3, and flow data of the air flow output by the air source 6. The working state data can be used for judging the running state of the pneumatic transmission assembly, and the specific judging method comprises the following steps:

after the pneumatic conveying assembly is installed, debugging operation is firstly carried out, the working state data is collected and recorded, the particle size data of dust in the bin pump 3 and the weight data of the dust in the bin pump 3 are recorded as operation load data, and the air pressure data of air flow output by the air source 6, the air pressure data of each part of the pipeline 4, the pressure difference data among each part of the pipeline 4 and the flow data of the air flow output by the air source 6 are recorded as operation working condition data.

When the operation load data is constant, each operation condition data has a certain change rule, such as: the air pressure data of the air flow output by the air source 6 is increased, the flow data of the air flow output by the air source 6 is gradually increased, and the air pressure data of each part of the pipeline 4 and the pressure difference data between each part of the pipeline 4 are also increased. During debugging operation, a standard change rule can be set according to a detection result, when the pneumatic conveying assembly operates stably, the operation load data generally keeps stable, and the change rule among various corresponding operation condition data accords with the standard change rule. If the operating load data of the pneumatic transmission assembly has large difference during operation, a plurality of groups of operating load data should be set during debugging operation, and the standard change rules among the operating condition data should be arranged into a plurality of groups so as to correspond to different groups of operating load data. When the pneumatic conveying assembly normally operates, comparison needs to be carried out according to a standard change rule corresponding to the operation load data.

Referring to fig. 1 and 2, in this embodiment, the controller 71 needs to dynamically adjust the air pressure of the output air flow of the air source 6 according to the operation load data and the pressure difference data between the parts of the pipeline 4, and control the operation of the pneumatic valve set 64 and the boosting valve set 65, i.e. determine the dust conveying resistance, and thus dynamically adjust the operation of the pneumatic conveying assembly to reduce the useless work performed by the pneumatic conveying assembly. If the particle size data of the dust in the bin pump 3 becomes larger or the weight data of the dust in the bin pump 3 becomes larger, it is described that the resistance for conveying the dust is increased next time, and the air pressure of the air flow output by the air source 6 needs to be increased; otherwise, the air pressure of the air flow output by the air source 6 is reduced. If the pressure difference between the two parts of the pipeline 4 is increased, the resistance for conveying dust is increased, and the air pressure of the air flow output by the air source 6 needs to be increased; if the pressure difference between the two parts of the duct 4 becomes small, the pressure of the gas flow output by the gas source 6 can be reduced. In addition, when the data of the pressure difference between the two parts of the pipeline 4 becomes larger, the controller 71 should also control the flow regulating valves of the pneumatic valve bank 64 and the boosting valve bank 65 to open and close, control the boosting valve bank 65 near the position where the pressure difference increases to increase the output airflow, and output the airflow to the position where the resistance increases by the boosting valve bank 65 near the position where the pressure difference increases, so that the requirement on the air pressure of the airflow output by the air source 6 can be reduced, that is, the air pressure of the airflow output by the air source 6 can be reduced, the idle work of the pneumatic conveying assembly can be reduced, and the energy consumption can be reduced.

When the pneumatic transmission assembly stably operates, the working state data are continuously monitored, the data acquisition assembly transmits the collected working state data to a remote computer 73 installed in a central control room, the remote computer 73 compares a change rule among various operating condition data with a standard change rule according to corresponding operating load data, if the difference between the change rule and the standard change rule is larger than the standard change rule (the remote computer 73 should be preset with an allowable error range, and if the difference between the change rule among the various operating condition data and the standard change rule exceeds the allowable range), a maintenance plan and a maintenance scheme need to be set in time, and the remote computer 73 can directly remind a worker in the central control room to make a maintenance plan and a maintenance scheme. Regarding the establishment of the maintenance schedule, reference should be made to the above recorded operating condition data, such as: according to the change of the pressure difference data among all parts of the pipeline 4, whether all parts of the pipeline 4 are abnormal or not can be judged; whether each section of gas transmission pipeline is abnormal or not can be judged according to the gas pressure data of each part of the pipeline 4, the gas pressure data of the gas flow output by the gas source 6 and the flow data of the gas flow output by the gas source 6, and the abnormal positions need to be maintained in time so as to avoid the accidents of blockage or breakage.

It should be understood that, when the pneumatic conveying assembly operates, each operating condition data changes within a certain range, in the debugging operation process, the change range of each operating condition data should be recorded, the standard change range is set according to the change range of the operating condition data, each operating condition data changes within the standard change range, and each operating condition data has a change rule. When the pneumatic conveying assembly stably operates, the operation condition data is monitored, if a certain operation condition data is changed violently and departs from a standard change range, the pipeline 4 and the gas transmission pipeline are possibly blocked or broken, the controller 71 can directly stop the operation of the pneumatic conveying assembly, and meanwhile, the remote computer 73 timely informs workers of paying attention to the operation problem of the pneumatic conveying assembly, so that the workers can find the operation problem of the pneumatic conveying assembly timely and overhaul the pneumatic conveying assembly.

Generally, the first operating condition data out of the standard variation range is directly caused by the unexpected condition, and the other operating condition data out of the standard variation range is indirectly caused by the unexpected condition. When the remote computer 73 monitors the operating condition data, the first operating condition data that deviates from the standard variation range should be marked, thereby facilitating the analysis of the position to be repaired or maintained by the worker.

In addition, when the pneumatic conveying assembly operates, the data acquisition assembly displays the acquired working state data on the interface of the industrial personal computer 72, and a worker can conveniently know the working state data when the pneumatic conveying assembly operates through the interface of the industrial personal computer 72. In addition, the remote computer 73 can analyze various operation condition data, compare the operation condition data with a standard change range, recognize abnormal operation condition data, and mark the operation condition data (namely, the abnormal operation condition data) which is firstly separated from the standard change range, so that a worker can analyze and know the problem corresponding to the abnormal operation condition data, thereby quickly judging the position where the fault occurs, and being convenient for maintenance without gradually checking the position on site.

The working principle is as follows:

when the pneumatic conveying assembly is in operation, the controller 71 dynamically adjusts the air pressure of the air flow output by the air source 6 in real time according to the conveying resistance of the dust, so as to reduce the idle work done by the pneumatic conveying assembly, reduce the energy consumption, reduce the amount of the dust conveyed in a dilute phase conveying manner, and reduce the abrasion of the dust conveying process on the pipeline 4. Meanwhile, the remote computer 73 analyzes whether the change rule among the operation condition data meets the standard change rule or not and whether the operation condition data is out of the standard change range or not in real time according to the operation load data, so that the worker is reminded to set a maintenance plan and a maintenance scheme in time, and when an unexpected condition occurs, the worker is guaranteed to find the operation problem of the pneumatic conveying assembly in time.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a powder air conveying system which characterized in that: including pneumatic transmission subassembly, data acquisition subassembly, communication module and control module, the data acquisition subassembly with control module passes through communication module transmission data, wherein:

the pneumatic conveying assembly is used for collecting and transferring dust;

the data acquisition assembly is used for acquiring working state data when the pneumatic conveying assembly operates and transmitting the working state data to the control module, and the working state data comprises air pressure data of each part of the pipeline;

and the control module adjusts the air pressure of the air flow output by the air source according to the working state data.

2. The pneumatic powder conveying system of claim 1, wherein: the operating state data further comprises at least one of:

particle size data of dust in the bin pump;

weight data of dust in bin pumps;

the air source outputs air pressure data of the air flow;

the air source outputs flow data of the air flow.

3. The pneumatic powder conveying system of claim 2, wherein: pneumatic conveying subassembly is including the first feed bin that is used for tentatively collecting the dust, be used for carrying the storehouse pump of dust, be used for providing the air supply of air current and be used for concentrating the second feed bin of collecting the dust, the top of storehouse pump with first feed bin intercommunication, the storehouse pump with still be equipped with first valve between the first feed bin and connect, the storehouse pump with still be equipped with the pipeline intercommunication between the second feed bin.

4. The pneumatic powder conveying system of claim 3, wherein: the air source is communicated with a pneumatic valve group and a plurality of boosting valve groups, the air outlets of the pneumatic valve groups are communicated with the inner wall of the bin pump, the air outlets of the boosting valve groups are communicated with the inner wall of the pipeline, and the boosting valve groups are communicated with the communication nodes between the pipelines and are arranged in the length direction of the pipeline.

5. The pneumatic powder conveying system of claim 3, wherein: the bin pump is also provided with an exhaust valve which is communicated with an exhaust pipe and communicated with an ash bucket of the bag-type dust collector through the exhaust pipe.

6. The pneumatic powder conveying system of claim 3, wherein: the collection of the particle size data of the dust in the bin pump is realized through a particle size detection sensor, and the particle size detection sensor is arranged between the first bin and the bin pump.

7. The pneumatic powder conveying system of claim 3, wherein: the dust weight measurement device is characterized by further comprising a support for supporting the bin pump, wherein a weighing sensor is arranged between the support and the bin pump and used for measuring weight data of dust in the bin pump.

8. The pneumatic powder conveying system of claim 3, wherein: and the second storage bin is provided with a vacuum air pressure release valve.

9. The pneumatic powder conveying system of claim 1, wherein: the industrial personal computer is further included, and the data acquisition assembly transmits acquired working state data to the industrial personal computer through the communication module.

10. The pneumatic powder conveying system of claim 1, wherein: the data acquisition assembly transmits the collected working state data to the remote computer through the communication module.

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