CN117657786A - Material particle pneumatic conveying transfer bin and use method thereof - Google Patents

Abstract

The invention discloses a transfer warehouse for pneumatic conveying of material particles and a method of use thereof, which includes: a transfer warehouse body, a sealing cover at the upper end provided with a cover plate, and the lower end is connected to a discharge pipe; the cover plate is connected to a feed pipe; and dust removal components , located at the outer upper part of the transfer bin body, has a cyclone separator with an input end connected to the transfer bin body; the exhaust end at the upper end of the cyclone separator is connected to the outside world through a filter; the return component has a dust exhaust output connected to the cyclone separator The support cylinder at the end, and the screw rod located in the support cylinder; the support cylinder is arranged obliquely, and the upper end is connected with the inside of the transfer bin. The return motor is fixedly installed on the end side of the support cylinder, and the output end is connected to the screw rod so that the support The material in the cylinder returns to the transfer bin. The invention has a simple and compact structure, can realize dust reduction and return processing of material particles entering the transfer bin, and avoids the formation of a large amount of dust caused by the particles splashing, and the accumulation of particles during the feeding and discharging.

Description

A kind of pneumatic conveying transfer warehouse for material particles and its use method

Technical field

The invention relates to the field of material transportation, and in particular to a pneumatic transportation transfer bin for material particles and a method of using the same.

Background technique

Pneumatic conveying is a kind of conveying granular materials in a closed pipeline along the direction of the air flow by using air flow energy. It has the advantages of simple structure, easy operation, and can be conveyed horizontally, vertically or obliquely. During the conveying process, the materials can also be conveyed at the same time. Operations such as heating, cooling, drying and air flow classification;

During the pneumatic transportation process, there will be a transfer warehouse at the corresponding pipeline, which can temporarily store materials or temporarily process the particles. For example, when the coal particles are transported to the transfer warehouse through the pneumatic pipeline, they can be diverted and transported or the coal can be initially screened. , the existing transfer warehouse is mainly a simple sealed box structure, and is provided with filter ventilation holes on the box, which has the following problems: 1. When the transported material particles enter the transfer warehouse, due to the air pressure and particle size, the particles are often A large amount of dust is formed due to splashing. The rapid passage of dust through the filter vent holes can easily cause blockage of the filter vent holes, causing an increase in air pressure in the transfer bin. In addition, direct collection and discharge of dust will reduce the total amount of materials and cause a waste of resources; 2. Material particles After entering the transfer bin, the material feeding and discharging are relatively concentrated, and it is easy for material particles to accumulate. That is, when the outlet of the feed pipe is fixedly arranged, the particles will form an upward convex shape when they are fed into the transfer bin, which will affect the stability of the particles. With continuous feeding, the same particles will form a concave shape when they are discharged from the transfer bin body through the discharging pipe, which affects the continuous discharging of particles.

Contents of the invention

The object of the present invention is to provide a pneumatic conveying transfer silo for material particles with a simple and compact structure, which can realize dust reduction and return processing of material particles entering the transfer silo, avoid the particles from splashing and forming a large amount of dust, and prevent the particles from being splashed when entering and discharging materials. There is accumulation.

In order to achieve the above purpose, this pneumatic transfer warehouse for material particles includes:

In the transfer bin body, the upper end of the sealing cover is equipped with a bin cover plate, and the lower end is connected to the discharge pipe; the bin cover plate is connected to the feed pipe;

The dust removal component is located on the outer upper part of the transfer bin body and has a cyclone separator with an input end connected to the transfer bin body;

The exhaust end at the upper end of the cyclone separator is connected to the outside world through the filter;

The material return component has a support cylinder connected to the dust discharge output end of the cyclone separator, and a screw rod located in the support cylinder; the support cylinder is arranged at an angle, and the upper end is connected to the inside of the transfer bin, and the material return motor is fixedly installed on the support cylinder The end side and output end of the body are connected to the screw rod so that the material supporting the cylinder returns to the transfer bin body.

Further, it also includes feeding components;

The feeding component has a rotating motor and a lower hopper located on the upper part of the transfer bin body;

The rotating motor is fixedly installed on the outside of the bin cover, and the output end is connected to the driving wheel. The upper end of the lower hopper is sealed and rotationally connected to the feed pipe, and the lower end is tilted toward the inner wall of the transfer bin. The upper part is equipped with a driven wheel;

The driving wheel and the driven wheel are connected through a transmission belt wound around their outer sides.

Further, a collecting component is provided at the bottom end of the transfer bin near the discharge pipe;

The collecting component has a collecting pipe that passes high-pressure gas;

The collecting pipe is arranged on the inner peripheral side of the transfer bin body, and is provided with a plurality of nozzle holes facing the discharge pipe.

Furthermore, it also includes an electromagnetic air distribution valve;

The input end of the electromagnetic air distribution valve is connected to high-pressure gas, the output end is connected to the collecting pipe through the first air inlet pipe, and is connected to the discharge pipe through the second air inlet pipe to generate negative pressure for discharging.

Further, it also includes a spray pipe located in the transfer chamber;

The spray pipe is located between the connection between the cyclone separator and the transfer silo body, and between the connection between the support cylinder and the transfer silo body.

Further, a buffer component is provided inside the transfer warehouse body;

The buffer component is located below the connection between the support cylinder and the transfer bin, and has a buffer platform that is fixed by the support frame and receives materials;

The support frame is movably installed on the inner wall of the transfer bin using a spring-damped hinge.

Further, the transfer warehouse body is provided with a temperature sensor, a pressure sensor, a humidity sensor, a dust concentration sensor, and an alarm component that are connected to the controller;

There is a sensor between the cyclone separator and the support cylinder for detecting the weight or accumulation degree of material particles;

The controller receives corresponding signals and controls the actions of the spray pipe, cyclone separator, and alarm components.

The object of the present invention is to also provide a method of using a pneumatic conveying transfer bin for material particles. The dust reduction and return processing of the material particles entering the transfer bin are realized through the dust removal component and the material return component, so as to avoid the particles from splashing and forming older particle dust. The feeding part and the collecting part prevent the accumulation of particles during feeding and discharging.

A method of using a transfer bin for pneumatic conveying of material particles, specifically including the following steps:

S1, particles are transported in the feed pipe by pneumatic force;

S2, the rotating motor starts, and the lower hopper is driven by the transmission belt to rotate relative to the feed pipe, so that the transported particles are fed into the transfer bin circumferentially along the lower end of the lower hopper;

The buffer platform receives the particles fed from the lower hopper to reduce the impact of entering the transfer bin. When the buffer platform deforms, the support frame rotates and retracts to absorb a certain impact force, and when the particles slide from the buffer platform, they enter the transfer bin. When lowering, the support frame and buffer platform will recover on their own;

S3, the cyclone separator can balance the excessive air pressure generated by the pneumatic transportation of particles in the transfer bin;

When the dust concentration sensor inside the transfer silo detects that the dust concentration exceeds a certain range, the spray pipe sprays the transfer silo to reduce dust. At the same time, the motor of the cyclone separator starts to remove the particulate dust generated by the air pressure impact in the transfer silo. Pressure inhalation, and cyclone separation of dust and gas through centrifugal action, the material particles with larger mass are separated and enter the support cylinder through the tapered port at the lower end, and the material particles with smaller mass are separated from the cyclone through the cyclone separator. The gas is discharged from the upper exhaust end, intercepted by the filter, and then discharged to the outside world;

S4, there is a sensor between the cyclone separator and the support cylinder for detecting the weight or accumulation degree of material particles. When the detected weight or accumulation height exceeds the set threshold, the controller receives the corresponding detection signal and controls the action of the return motor. , driving the screw rod to rotate to return the particles in the support cylinder to the transfer bin;

The temperature sensor, humidity sensor, and pressure sensor in the transfer warehouse monitor the temperature, humidity, and air pressure accordingly. When the dust concentration is high, the controller can control the action of the cyclone separator and spray pipe; when the temperature rises or the humidity drops, The controller can control the action of the spray pipe; when the temperature or pressure rises sharply, it indicates that there is an abnormality in the transfer chamber, and the controller controls the action of the spray pipe and the alarm component;

S5, when the particles in the middle transfer chamber are pneumatically discharged, the high-pressure gas enters from the air inlet of the electromagnetic air distribution valve and is divided into two channels for output. The output ends of the two channels are correspondingly connected to the discharge pipe to generate negative pressure to discharge the particles. Discharging the material and passing it into the collecting pipe causes the particles at the negative pressure suction part of the discharging pipe to loosen and cause fluidization. The controller can control the air flow output by the electromagnetic air distribution valve to regulate the gas in the discharging pipe and collecting pipe. ;

S6, after the particles in the transfer bin are transported, the discharge pipeline stops working.

Compared with the prior art, a pneumatic transport transfer bin for material particles in the present invention adopts a sealed pneumatic conveying system for particle feeding and discharging. The negative pressure generated by the cyclone separator actively inhales the particle dust from the transfer bin body into the cyclone. In the separator, the particles with larger mass are separated and discharged from the output end to the support cylinder, and returned to the transfer bin through the screw rod. The particles with smaller mass are filtered through the filter and the air is discharged to achieve dust control. Dust reduction and return of particles to prevent particles from splashing and producing a large amount of dust, causing pollution to the surrounding environment;

Since there is a feeding component at the bin cover, the rotating motor starts, and the lower hopper rotates under the feed pipe through the driving wheel, transmission belt, and driven wheel to adjust the feeding direction of the lower hopper and prevent material particles from entering the transfer bin. They are concentrated at the feed inlet, causing accumulation; in addition, there is a collecting component at the bottom of the transfer bin near the discharge pipe, and high-pressure gas is discharged from the collecting pipe, causing the particles near the discharge pipe to loosen and cause fluidization operations. , to avoid pits appearing when the particles are discharged and unable to be discharged evenly;

Because there is a spray pipe inside the transfer warehouse; the spray pipe can reduce the amount of dust in the warehouse when feeding materials, and reduce the secondary dust generated by the material particles discharged from the support cylinder; there is a buffer component inside the transfer warehouse, through the buffer platform and spring The support frame connected by a damping hinge can buffer the air pressure to drive the particles to fall, causing impact on the buffer platform and reducing the collision between particles.

Description of drawings

Figure 1 is an overall schematic diagram of the present invention;

Figure 2 is a schematic diagram of the dust removal component and the material return component in the present invention;

Figure 3 is a schematic structural diagram of the spray pipe in the present invention;

Figure 4 is a schematic diagram of the connection and assembly of the electromagnetic air distribution valve in the present invention;

In the picture: 11. Feed pipe, 12. Lower hopper, 13. Rotating motor, 14. Transmission belt, 15. Chamber cover;

20. Dust removal components, 21. Cyclone separator, 22. Filter, 23. Shutter;

30. Material return parts, 31. Material return motor, 32. Support cylinder, 33. Screw rod;

40. Buffering parts, 41. Buffering platform, 42. Support frame;

50. Aggregating components, 51. Discharge pipe, 52. Electromagnetic air distribution valve, 53. First air inlet pipe, 54. Air inlet hole, 55. Second air inlet pipe, 56. Collecting pipe;

60. Transit warehouse;

71. Spray pipe, 72. Through hole, 73. Liquid inlet hole;

80. Negative pressure suction device.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 and 2, this pneumatic transfer warehouse for material particles includes:

The upper end sealing cover of the transfer bin body 60 is provided with a bin cover plate 15 with a truncated cone structure, and the lower end is connected to the discharge pipe 51; the bin cover plate 15 is connected to the feed pipe 11;

The dust removal component 20 is located at the outer upper part of the transfer bin body 60, and has a cyclone separator 21 with an input end connected to the transfer bin body 60, and a screw rod 33 located in the support cylinder 32;

The exhaust end at the upper end of the cyclone separator 21 is connected to the outside world through the filter screen 22;

The material return component 30 has a support cylinder 32 connected to the dust discharge output end of the cyclone separator 21; the support cylinder 32 is arranged obliquely, and the upper end is connected to the inside of the transfer bin 60. The material return motor 31 is fixedly installed on the support cylinder 32 The end side and the output end are connected to the screw rod 33 so that the material in the support cylinder 32 returns to the transfer bin 60;

Specifically, the bin cover plate 15 is located on the top of the transfer bin body 60 and is preferably a truncated cone shell structure. The overall edge diameter is larger than the diameter of the transfer bin body 60, and the connections are coated with sealant; the feed pipe 11 can be vertically connected from the bin cover. The plate 15 enters the transfer warehouse body 60; the outer sides of the warehouse cover plate 15 and the transfer warehouse body 60 are made of colored steel tiles, and the inner sides are made of multi-layer fireproof and heat-insulating materials;

The dust removal component 20 can be installed on the outer wall of the transfer bin body 60 through a bracket; when the cyclone separator 21 is not working, it serves as the air inlet and outlet of the transfer bin body 60, which can ensure the balance between the internal pressure of the transfer bin body 60 and the outside world, and avoid the problems caused by pneumatic transportation of particles. The internal pressure of the transfer bin 60 is too large; when the cyclone separator 21 is working, it can use the motor to drive the rotating blades to rotate the gas-solid mixture at high speed, and generate centrifugal force to separate the particles and dust from the air flow. The dust exhaust output end of the cyclone separator 21 The transfer bin 60 is connected to the support cylinder 32, and the exhaust end is connected to the outside through the filter 22; the cyclone separator 21 has a pressure sensor inside, which can monitor the internal pressure in real time. The cyclone separator 21 is a conventional product and cannot be used at this time. To elaborate further;

A shutter 23 can be erected above the exhaust end of the cyclone separator 21 to prevent rainwater, ice and snow from entering;

The tilt angle of the support cylinder 32 is 25-45°, and its purpose can be used for centralized spiral transportation of dust;

When the material particle pneumatic conveying transfer bin is in use, the material particles enter the transfer bin body 60 through the feed pipe 11, and a large amount of particle dust is generated due to air pressure and impact. This dust includes the material particles themselves and other fine particles;

At this time, the controller controls the action of the dust removal component 20, that is, the motor of the cyclone separator 21 is started, generating negative pressure to suck in the air in the transfer bin 60, and separate the dust and gas through centrifugal action, and the larger material particles are is separated and enters the support cylinder 32 through the tapered opening at the lower end. The material particles with smaller mass are discharged from the upper exhaust end through the inner blade of the cyclone separator 21, and are intercepted by the filter screen 22 before the gas is discharged. to the outside world;

When the internal pressure of the cyclone separator 21 is too high, it indicates that the filter screen 22 is blocked by material particles, and the filter screen 22 needs to be replaced, or the filter screen 22 is equipped with a vibrator connected to the controller. When the filter screen 22 is blocked by material particles, , the controller controls the vibrator to start and clean the filter screen 22 through vibration. After cleaning, the particles enter the support cylinder 32 through the cyclone separator 21;

The return motor 31 starts to drive the screw rod 33 to rotate, and the material particles entering the support cylinder 32 are returned to the transfer bin 60 under the spiral conveyance; in addition, a user can be provided at the connection between the support cylinder 32 and the cyclone separator 21 Sensors used to detect the weight or accumulation degree of material particles, such as weight sensors and photoelectric sensors. When the detected weight or accumulation height exceeds the set threshold, the controller receives the corresponding detection signal and controls the action of the return motor 31, through the screw rod 33 The material particles are transported to the transfer bin 60. When the detected weight or stacking height is lower than the set threshold, the controller receives the corresponding detection signal and controls the return motor 31 to stop working or delay working for a period of time;

The material particles can be temporarily stored in the transfer bin 60 or transferred to other appropriate processing procedures, and can be discharged through the discharge pipe 51 at the lower end of the transfer bin 60;

This material particle pneumatic conveying transfer bin adopts sealed pneumatic conveying for particle feeding and discharging. The cyclone separator 21 generates negative pressure to introduce the particle dust from the transfer bin body 60 to the cyclone separator 21 to separate the larger particles. It is discharged from the dust discharge output end to the support cylinder 32, and returned to the transfer bin 60 through the screw rod 33. The smaller particles are filtered through the filter 22 and the air is discharged, thereby realizing the return of dust particles. Avoid dust generated by pneumatic conveying from affecting the surrounding environment.

As shown in Figure 1, in the preferred solution, the pneumatic transport transfer bin for the material particles also includes a feeding component;

The feeding component has a rotating motor 13 and a lower hopper 12 located on the upper part of the transfer bin body 60;

The rotating motor 13 is fixedly installed on the outside of the bin cover 15, and the output end is connected to the driving wheel. The upper end of the lower hopper 12 is sealed and rotatably connected to the feed pipe 11, and the lower end is inclined toward the inner wall of the transfer bin body 60. The upper part is provided with a driven wheel;

The driving wheel and the driven wheel are connected by a transmission belt 14 wound around the outside thereof;

Specifically, the upper part of the lower hopper 12 is vertically connected to the feed pipe 11, and the lower part is inclined. The lower hopper 12 and the feed pipe 11 can be connected through bearings and sealing rings;

The rotating motor 13 starts, and the driven wheel rotates through the driving wheel and the transmission belt 14, thus driving the lower hopper 12 to rotate at the feed pipe 11 to adjust the feeding direction of the lower hopper 12, that is, the material particles enter the lower hopper from the feed pipe 11. The hopper 12 is disposed as the lower hopper 12 rotates to prevent material particles from entering the transfer bin body 60 and being concentrated at the feed inlet, causing accumulation.

As shown in Figure 4, in the preferred solution, a collecting component 50 is provided at the bottom end of the transfer bin body 60 near the discharge pipe 51;

The collecting component 50 has a collecting pipe 56 that passes high-pressure gas;

The collecting pipe 56 is arranged on the inner peripheral side of the transfer bin body 60, and is provided with a plurality of nozzle holes facing the discharge pipe 51;

Specifically, when discharging material particles, on the one hand, the discharging pipe 51 itself transports particles through negative pressure, such as generating a vacuum negative pressure zone through the negative pressure suction device 80, so that the material particles in the transfer bin 60 are transported. It is sucked into the discharge pipe 51, and the high-pressure gas on the other side is discharged from the collecting pipe 56, which causes the particles near the discharge pipe 51 to loosen and cause fluidization operation to avoid pits when the particles are discharged and the materials cannot be uniformly discharged;

Preferably, the collecting pipe 56 has an annular structure, so that gas can be transported smoothly within the collecting pipe 56 .

Furthermore, the pneumatic conveying transfer bin for this material particle also includes an electromagnetic air distribution valve 52;

The input end of the electromagnetic air distribution valve 52 is connected to high-pressure gas, the output end is connected to the collecting pipe 56 through the first air inlet pipe 53, and is connected to the discharge pipe 51 through the second air inlet pipe 55 to generate negative pressure for discharging;

Specifically, the electromagnetic air distribution valve 52 is used to control the flow and direction of gas, and can adjust the flow and distribution of gas as needed, and is connected to the controller;

When the output of the discharge pipe 51 needs to be increased, the controller controls the electromagnetic air distribution valve 52 to increase the gas flow connected to the discharge pipe 51; when the collecting pipe 56 needs to increase the gas output to collect materials to the discharge pipe 51 When, the controller controls the electromagnetic air distribution valve 52 to increase the gas flow connected to the collecting pipe 56;

As an example in which the second air inlet pipe 55 is connected with the discharge pipe 51 to generate negative pressure for discharging, a negative pressure suction device 80 can be provided on the discharge pipe 51, that is, the negative pressure suction device 80 can pass through The second air inlet pipe 55 inhales gas into the inside of the suction device to form a negative pressure environment, so that the material particles in the discharge pipe 51 connected to the negative pressure suction device 80 are driven by the negative pressure air flow and transported to a designated location. The negative pressure suction device 80 is an existing structure and will not be further elaborated here.

As another embodiment in which the second air inlet pipe 55 is connected to the discharging pipe 51 to generate negative pressure for discharging, the second air inlet pipe 55 is connected to the discharging pipe 51 at an angle, and the high-pressure gas transportation direction is consistent with the discharging direction;

That is, when the high-pressure gas enters the discharging pipe 51 from the second air inlet pipe 55 , a negative pressure is generated at one end of the discharging pipe 51 at the transfer chamber body 60 to transport the particles.

As shown in Figure 3, further, the pneumatic transport transfer warehouse for material particles also includes a spray pipe 71 located in the transfer warehouse body 60;

The spray pipe 71 is located between the connection between the cyclone separator 21 and the transfer cabin body 60, and between the connection between the support cylinder 32 and the transfer cabin body 60;

Specifically, the spray pipe 71 is in an annular position and is provided with a plurality of circumferentially distributed through holes 72, that is, nozzles are installed at the through holes 72; the spray pipe 71 is provided with a liquid inlet 73;

The input end of the spray pipe 71 is connected to a high-pressure water pipe, and the high-pressure water pipe is provided with a solenoid valve controlled by a controller to open and close; when the feed pipe 11 is feeding particles, the spray pipe 71 is opened to spray dust;

It is explained that the spray pipe 71 generally does not spray. It is preferable when the feed pipe 11 has a large delivery volume, that is, the amount of spray water is strictly controlled to avoid the adhesion of particles caused by excessive water mist, which affects the quality of the material particles. Discharge;

In addition, the position of the spray pipe 71 is arranged so that after the feed pipe 11 is fed, dust can be sprayed first. After the spray cannot be processed, the dust will enter the cyclone separator 21 from the top of the spray pipe 71; from the support cylinder 32 The discharged material particles can avoid secondary dust under the action of spray and can better fall into the transfer bin body 60 .

As shown in Figures 1 and 2, further, a buffer component 40 is provided inside the transfer bin body 60;

The buffer component 40 is located below the connection between the support cylinder 32 and the transfer bin 60, and has a buffer platform 41 fixed by the support frame 42 and receiving materials;

The support frame 42 is movably installed on the inner wall of the transfer bin body 60 using a spring-damped hinge;

Specifically, the buffer platform 41 can be an integrated overall platform or a multi-piece material combination platform, and its material is made of wear-resistant and fireproof metal fiber braided rubber; one end of the multiple support frames 42 is connected to the buffer platform 41, and the other end can be fixed on the transfer warehouse body 60 On the inner wall, a spring damping hinge can be used to further buffer the airflow to drive the particles to fall and cause an impact on the buffer platform 41;

That is, after the particles enter the transfer bin 60 from the feed pipe 11, they will have a large impact with the air flow, or in some pneumatic transportation situations such as coal, a large impact will easily increase the collision friction between the particles; the buffer platform 41 Can buffer particles to avoid excessive impact caused by falling;

Preferably, the buffer platform 41 matches the circumferential rotation of the lower hopper 12 , that is, the installation position and size of the lower hopper 12 need to ensure that coal particles and other materials fall on the incoming buffer component 40 .

Further, the transfer bin 60 is provided with a temperature sensor, a pressure sensor, a humidity sensor, a dust concentration sensor, and an alarm component connected to the controller;

The controller receives corresponding signals and controls the actions of the spray pipe 71, the cyclone separator 21, and the alarm components.

This action indicates the corresponding start, stop and output power;

Specifically, when the air pressure in the intermediate turret body 60 is high, the controller can control the cyclone separator 21 to start to adjust the negative pressure, or control the alarm component to start;

The dust concentration sensor is used to detect the dust concentration generated after the particles are fed. After receiving its signal, the controller controls the start of the spray pipe 71 and the cyclone separator 21;

A sensor for detecting the weight or accumulation degree of material particles is provided between the cyclone separator 21 and the support cylinder 32. After receiving the corresponding signal, the controller controls the start of the material return component 30;

The temperature sensor and the humidity sensor detect the temperature and humidity in the transfer warehouse 60 accordingly. For example, when the temperature is high, the controller controls the alarm component to start. When the humidity is high, the controller controls the spray pipe 71 to stop spraying, or controls the alarm component. start up.

When the pneumatic transport transfer bin for material particles is used, the particles are transported in the feed pipe 11 by pneumatic force, that is, the feed pipe 11 transports the particles to the transfer bin body 60 by pneumatic force;

The rotating motor 13 is started, and the lower hopper 12 is driven to rotate relative to the feed pipe 11 through the transmission belt 14, so that the granular material is fed circumferentially into the transfer bin 60 along the lower end of the lower hopper 12, and the controller can control the rotation speed of the rotating motor 13, that is, A sensor for detecting the amount of particles is provided between the feed pipe 11 and the lower hopper 12. The controller receives the corresponding signal and adjusts the rotation speed of the rotating motor 13 in real time to match the particle transportation amount;

The buffer platform 41 receives the particles fed from the lower hopper 12 to reduce the impact of entering the transfer bin 60. When the buffer platform 41 is deformed, the support frame 42 rotates and retracts to absorb a certain impact force, and when the particles escape from the buffer platform When 41 enters the lower part of the transfer warehouse body 60 after sliding, the support frame 42 and the buffer platform 41 both recover by themselves;

When the cyclone separator 21 is not working, it can be used as the air inlet and outlet of the transfer bin 60, which can ensure the balance between the internal pressure of the transfer bin 60 and the outside world, and avoid excessive internal pressure of the transfer bin 60 caused by pneumatic transport of particles, such as the cyclone separator 21 The exhaust end is connected to the outside world; when the cyclone separator 21 is working, the motor can be used to drive the rotating blades to rotate the gas-solid mixture at high speed, and generate centrifugal force to separate particles and dust from the air flow;

When the dust concentration sensor inside the transfer silo body 60 detects that the dust concentration exceeds a certain range, the spray pipe 71 sprays the transfer silo body 60 to reduce dust; at the same time, the motor of the cyclone separator 21 is started to remove the dust generated by the air pressure impact in the transfer silo body 60 The granular dust is inhaled under negative pressure, and the dust and gas are cyclone separated by centrifugal action. The material particles with larger mass are separated and enter the support cylinder 32 through the tapered port at the lower end, and the material particles with smaller mass pass through The inner blades of the cyclone separator 21 are discharged from the upper exhaust end, and are intercepted by the filter 22 before the gas is discharged to the outside; and when the internal pressure of the electric cyclone separator 21 is too high, the filter 22 needs to be replaced;

A sensor for detecting the weight or accumulation degree of material particles is provided between the cyclone separator 21 and the support cylinder 32. When the detected weight or accumulation height exceeds the set threshold, the controller receives the corresponding detection signal and controls the return motor 31. action, driving the screw rod 33 to rotate to return the particles in the support cylinder 32 to the transfer bin 60;

When the particles in the transfer bin 60 reach the maximum feeding height, for example, a liquid level sensor or a photoelectric sensor for detecting the height of the particle feeding can be installed in the transfer bin 60 , and the controller receives the corresponding detection information and controls the feeding pipe 11 to stop. The feeding and cyclone separator 21 are delayed for a certain period of time and then stopped;

The temperature sensor, humidity sensor, and pressure sensor in the transfer warehouse 60 monitor the temperature, humidity, and air pressure accordingly. When the dust concentration is high, the controller can control the action of the cyclone separator 21 and the spray pipe 71; when the temperature rises or When the humidity decreases, the controller can control the action of the spray pipe 71; when the temperature or pressure rises sharply, it indicates that there is an abnormality in the transfer warehouse 60, such as an open flame, and the controller controls the action of the spray pipe 71 and the alarm component;

When the particles in the transfer chamber 60 are pneumatically discharged, the high-pressure gas enters from the air inlet 54 of the electromagnetic air distribution valve 52 and is divided into two channels for output. The output ends of the two channels are correspondingly connected to the discharge pipe 51 to generate negative pressure. The particles are discharged and passed into the collecting pipe 56 to loosen the particles at the negative pressure suction point of the discharge pipe 51 and cause fluidization. The controller can control the air flow output by the electromagnetic air distribution valve 52 to control the discharge pipe. 51. The gas in the collecting pipe 56 is adjusted;

After the particles in the transfer bin are transported, the discharge pipe 51 stops working.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limitations of the invention.

Claims (8)

1. The utility model provides a material granule air conveying transfer storehouse which characterized in that includes:

a transfer bin body (60), wherein a bin cover plate (15) is arranged at the upper end of the sealing cover, and the lower end of the transfer bin body is connected with a discharge pipeline (51); the bin cover plate (15) is connected with the feeding pipeline (11);

the dust removing component (20) is positioned at the upper part of the outer side of the transfer bin body (60) and is provided with a cyclone separator (21) with an input end connected with the transfer bin body (60);

the exhaust end at the upper end of the cyclone separator (21) is communicated with the outside through a filter screen (22);

a return member (30) having a support cylinder (32) connected to the dust discharge end of the cyclone (21), and a screw rod (33) provided in the support cylinder (32); the supporting cylinder body (32) is obliquely arranged, the upper end of the supporting cylinder body is communicated with the interior of the transfer bin body (60), the material returning motor (31) is fixedly arranged at the end side of the supporting cylinder body (32), and the output end of the material returning motor is connected with the screw rod (33) so that materials of the supporting cylinder body (32) can return to the interior of the transfer bin body (60).

2. The pneumatic conveying transfer bin for material particles according to claim 1, further comprising a feeding component;

the feeding part is provided with a rotating motor (13) and a discharging hopper (12) positioned at the upper part of the transfer bin body (60);

the rotating motor (13) is fixedly arranged at the outer side of the bin cover plate (15), the output end of the rotating motor is connected with the driving wheel, the upper end of the discharging hopper (12) is in sealed rotating connection with the feeding pipeline (11), the lower end of the discharging hopper is obliquely oriented to the inner wall of the transfer bin body (60), and the upper part of the discharging hopper is provided with a driven wheel;

the driving wheel and the driven wheel are connected through a driving belt (14) wound on the outer side of the driving wheel and the driven wheel.

3. The pneumatic conveying transfer bin for material particles according to claim 2, wherein an aggregate part (50) is arranged at the bottom end of the transfer bin body (60) close to the discharge pipeline (51);

the aggregate component (50) is provided with an aggregate pipe (56) which is filled with high-pressure gas;

the collecting pipe (56) is arranged on the inner peripheral side of the transfer bin body (60), and a plurality of spray holes facing the discharge pipeline (51) are formed in the collecting pipe.

4. A pneumatic conveying transfer house for material particles according to claim 3, further comprising an electromagnetic air dividing valve (52);

the input end of the electromagnetic air distributing valve (52) is connected with high-pressure gas, the output end of the electromagnetic air distributing valve is connected with the collecting pipe (56) through the first air inlet pipe (53) respectively, and the electromagnetic air distributing valve is communicated with the discharging pipeline (51) through the second air inlet pipe (55) so that negative pressure discharging is generated.

5. A pneumatic conveying transfer chamber for material particles as claimed in claim 1, further comprising a spray tube (71) positioned within the transfer chamber body (60);

the spray pipe (71) is positioned between the connection part of the cyclone separator (21) and the transfer bin body (60) and the connection part of the supporting cylinder body (32) and the transfer bin body (60).

6. The pneumatic conveying transfer bin for material particles according to claim 5, wherein a buffer component (40) is arranged in the transfer bin body (60);

the buffer part (40) is positioned below the joint of the supporting cylinder body (32) and the transfer bin body (60) and is provided with a buffer platform (41) which is fixed by a supporting frame (42) and used for receiving materials;

the supporting frame (42) is movably arranged on the inner wall of the transfer bin body (60) by adopting a spring damping type hinge.

7. The pneumatic conveying transfer bin for material particles according to claim 6, wherein a temperature sensor, a pressure sensor, a humidity sensor, a dust concentration sensor and an alarm component which are connected with a controller are arranged in the transfer bin body (60);

a sensor for detecting the weight or the accumulation degree of the material particles is arranged between the cyclone separator (21) and the supporting cylinder body (32);

the controller receives corresponding signals and controls the spray pipe (71), the cyclone separator (21) and the alarm component to act.

8. A method for using the pneumatic conveying transfer bin for material particles according to claim 7, which is characterized by comprising the following steps:

s1, conveying particles in a feeding pipeline (11) by virtue of pneumatic force;

s2, starting a rotating motor (13), and driving a discharging hopper (12) to rotate relative to a feeding pipeline (11) through a transmission belt (14) so that conveyed particles are circumferentially fed into a transfer bin body (60) along the lower end of the discharging hopper (12);

the buffer platform (41) receives particles fed by the discharging hopper (12) so as to reduce impact entering the transfer bin body (60), the support frame (42) rotates and retracts to absorb a certain impact force when the buffer platform (41) deforms, and when the particles slide from the buffer platform (41) and enter the lower part of the transfer bin body (60), the support frame (42) and the buffer platform (41) are both automatically recovered;

s3, the cyclone separator (21) can balance the excessive air pressure generated by the transfer bin body (60) due to the pneumatic conveying of particles;

when the dust concentration sensor in the transfer bin body (60) detects that the dust concentration exceeds a certain range, a spray pipe (71) carries out spray dust fall treatment on the transfer bin body (60), meanwhile, a motor of a cyclone separator (21) is started to suck particle dust generated by air pressure impact in the transfer bin body (60) into the cyclone separator, cyclone separation is carried out on the dust and gas through centrifugal action, material particles with larger mass are separated out, the material particles enter a supporting cylinder (32) through a conical opening at the lower end, the material particles with smaller mass are discharged from an upper exhaust end through the cyclone separator (21), and the gas is discharged to the outside after interception through a filter screen (22);

s4, a sensor for detecting the weight or the stacking degree of the material particles is arranged between the cyclone separator (21) and the supporting cylinder (32), when the detected weight or the stacking height exceeds a set threshold value, the controller receives corresponding detection signals and controls the action of the returning motor (31) to drive the screw rod (33) to rotate so as to return the particles in the supporting cylinder (32) into the transferring bin (60);

the temperature sensor, the humidity sensor and the pressure sensor in the transfer bin body (60) correspondingly monitor the temperature, the humidity and the air pressure, and when the dust concentration is higher, the controller can control the cyclone separator (21) and the spray pipe (71) to act; when the temperature is increased or the humidity is reduced, the controller can control the spray pipe (71) to act; when the temperature or the pressure rises sharply, the abnormal condition exists in the transfer bin body (60), and the controller controls the spray pipe (71) to act and the alarm part to act;

s5, when particles in the transfer bin body (60) are subjected to pneumatic discharge, high-pressure gas enters from an air inlet hole (54) of the electromagnetic air distributing valve (52) and is output in two paths, negative pressure is generated in the discharge pipeline (51) by corresponding two paths of output ends, the particles are discharged by the discharge pipeline (51) through negative pressure, the particles at the negative pressure suction position of the discharge pipeline (51) are loosened and fluidized, and the controller can control the air flow output by the electromagnetic air distributing valve (52) so as to regulate the air in the discharge pipeline (51) and the air in the collecting pipe (56);

s6, after the particles in the transferring bin are conveyed, the discharging pipeline (51) stops working.