Conveying device combining compressed air positive pressure conveying and negative pressure material suction conveying

Abstract

The utility model discloses a conveying device combining compressed air positive pressure conveying and negative pressure material suction conveying, and relates to the technical field of material conveying devices, in particular to a conveying device combining compressed air positive pressure conveying and negative pressure material suction conveying. The device comprises a conveying bin, an equipment bracket, target equipment, a positive-pressure feeding conveying structure and a negative-pressure sucking conveying structure, the conveying bin is fixedly connected to target equipment through an equipment support and bolts. The positive pressure feeding conveying structure and the negative pressure suction conveying structure are arranged on the conveying bin. According to the technical scheme, the problems that in the prior art, one positive-pressure conveying stock bin and one negative-pressure conveying stock bin are needed for achieving positive-pressure conveying and negative-pressure conveying of materials, the equipment cost is increased, and when the space of the upper equipment is limited, the requirement for configuring two stock bins cannot be met are solved.

Description

Technical Field

[0001] The utility model relates to a conveying device combining compressed air positive pressure conveying and negative pressure material suction conveying, and relates to the technical field of material conveying devices, in particular to a conveying device combining compressed air positive pressure conveying and negative pressure material suction conveying. Background Art

[0002] Material transportation refers to the process of transporting materials from one place to another through various conveying equipment and systems. At present, there are basically two ways to achieve material transportation. One is to use the fan or compressed air pipeline at the starting point of the system to introduce compressed air into the material conveying pipeline, and use the pressure difference between the starting point and the end point of the pipeline to make the air flow in the pipeline and drive the movement of the material, so as to realize the material transportation to the silo; the other is to use the negative pressure formed at the end of the conveying system and the pressure difference of the outside world as the power source. This pressure difference causes the outside air to be sucked into the pipeline. At the same time, the material is brought into the pipeline with the movement of the air. After reaching the end point, the material is separated from the air and collected, so as to realize the material transportation to the silo. According to the existing technology, if you want to realize compressed air positive pressure transportation and negative pressure suction material transportation from one place to another, you need a positive pressure transportation silo and a negative pressure transportation silo, which increases the equipment cost, and when the equipment space cannot meet the configuration of two silos, we have no way to realize the transportation of two materials with different requirements from one place to another.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of conveying device that combines compressed air positive pressure conveying and negative pressure suction conveying, so as to overcome the problems existing in the prior art. Summary of the invention

[0004] According to the above-mentioned prior art, in order to realize positive pressure conveying and negative pressure conveying of materials, one positive pressure conveying silo and one negative pressure conveying silo are required, which increases the equipment cost, and when the upper equipment space is limited, it cannot meet the technical problem of configuring two silos, and provides a conveying device combining compressed air positive pressure conveying and negative pressure suction conveying. The utility model mainly combines compressed air positive pressure conveying and negative pressure suction conveying, and uses a conveying silo to convey materials from one place to another, saving equipment cost and reducing equipment space.

[0005] The technical means adopted by the utility model are as follows:

[0006] A conveying device combining compressed air positive pressure conveying and negative pressure suction conveying, characterized in that it comprises: a conveying silo, an equipment bracket, a target equipment, a positive pressure feeding conveying structure and a negative pressure suction conveying structure;

[0007] Further, the conveying silo is fixed to the target equipment through equipment brackets and bolt connections;

[0008] Furthermore, the positive pressure feeding and conveying structure and the negative pressure suction and conveying structure are arranged on the conveying silo.

[0009] Furthermore, the positive pressure feeding and conveying structure includes: an exhaust port, a material conveying pipeline connected to the material pipeline A, a material unloading rotary valve and a pressure-controlled solenoid valve;

[0010] Furthermore, the exhaust port is arranged at the top of the conveying silo, and the exhaust port is a structure that only allows air to exit but not enter;

[0011] Further, the material pipe A is connected to the top of the conveying silo and is located below the exhaust port;

[0012] Further, the material pipeline A is connected to the external compressed air equipment and the silo through the material conveying pipeline;

[0013] Furthermore, a material discharge rotary valve is provided on the material conveying pipeline to control the switch of material conveying.

[0014] Furthermore, a compressed air solenoid valve is provided on the material conveying pipeline to control the delivery / shutoff of compressed air.

[0015] Furthermore, the negative pressure suction material conveying structure includes: a material pipe B connected to the material suction machine;

[0016] Further, the material pipe B connected to the material is arranged at the top of the conveying silo, below the exhaust port;

[0017] Further, it is connected to the material bag through the material pipeline B;

[0018] Furthermore, the suction machine is arranged on the top of the conveying silo, between the material inlet pipe B and the material inlet pipe A.

[0019] Furthermore, a one-way valve is also provided on the upper portion of the conveying silo, which is used to cooperate with the exhaust port to discharge excess air in the conveying silo.

[0020] Furthermore, a material level sensor is provided on the upper part of the conveying silo to determine the upper limit of the material in the conveying silo, which is connected to the external control system to transmit the detection signal to the external control system to control the unloading rotary valve, suction machine, one-way valve and compressed air solenoid valve.

[0021] Furthermore, a material level sensor is provided at the lower part of the conveying silo to determine the lower limit of the material in the conveying silo, which is connected to the external control system to transmit the detection signal to the external control system to control the material discharge rotary valve, suction machine, one-way valve and compressed air solenoid valve.

[0022] The working process of the utility model is:

[0023] 1. Compressed air positive pressure material conveying process:

[0024] When compressed air is used for positive pressure delivery, the pressure difference between the starting point and the end point of the pipeline is used. The compressed air carries the material under positive pressure and enters the conveying silo through the material conveying pipeline welded with the material inlet pipeline A (positive pressure feeding, from the initial equipment). Since the air pressure will increase instantly, an exhaust port (or a one-way valve) is set at the upper end of the conveying silo. At this time, the exhaust port is exhausted or the one-way valve is opened to discharge excess air, preventing the material from splashing under the action of compressed air, thereby completing the material delivery to the conveying silo. When the material level touches the upper level device connected by thread on the upper part of the silo wall, the upper level device will give the control system a signal that the material has been touched. At this time, the control system first closes the unloading rotary valve to stop feeding, and after the compressed air sends all the materials in the pipeline to the conveying silo, the compressed air solenoid valve is closed to stop the compressed air intake, and the material delivery is completed. When production starts, when the material in the conveying silo drops to the lower part of the silo wall and is connected to the material level sensor through threads, the material level sensor will give the control system a signal that the material has reached the end. At this time, the control system opens the compressed air valve, and then opens the material rotary valve to start feeding. This cycle is repeated to achieve continuous material conveying by compressed air positive pressure conveying.

[0025] 2. Negative pressure suction and conveying process:

[0026] When using negative pressure suction conveying, the suction machine starts to work and discharges the air in the conveying silo through the exhaust port (or one-way valve) to the outside of the silo, so that the conveying silo forms a negative pressure. At this time, the material in the bag passively enters the conveying silo through the pipe or hose welded to the material pipeline under the action of negative pressure suction. When the material level touches the upper level device connected by thread to the upper part of the silo barrel wall, the level device will give the control system a signal that the material has been touched. At this time, the control system shuts down the suction machine and the conveying ends. When production starts, when the material in the conveying silo drops to the lower level device connected by thread to the lower part of the silo barrel wall, the level device will give the control system a signal that the material has been touched. At this time, the control system starts the suction machine and starts feeding. This cycle is repeated to achieve continuous material conveying of negative pressure suction conveying; when conveying with negative pressure suction, the suction machine can also set the conveying time according to the volume of the conveying silo, the size of the suction pipeline and the characteristics of the material, and complete the conveying within the set time. This is another control method for negative pressure suction conveying.

[0027] In summary, the two conveying forms are realized in one conveying silo, which is fixed to the target equipment via the equipment bracket by bolt connection, thereby realizing the material conveyance from the initial equipment to the target equipment, and then entering the next process.

[0028] Compared with the prior art, the utility model has the following advantages:

[0029] 1. The conveying device provided by the utility model combines compressed air positive pressure conveying and negative pressure suction conveying, which can realize the use of the same conveying silo when two materials with different requirements are transported from one place to another, thereby saving costs;

[0030] 2. The utility model provides a conveying device combining compressed air positive pressure conveying and negative pressure suction conveying. The one-way valve has two functions. One is to open the one-way valve during positive pressure conveying to discharge excess air, thereby preventing the material from splashing under the action of compressed air. The other is to prevent the one-way valve 5 from sucking air from the outside during negative pressure suction conveying to form negative pressure. Under the action of negative pressure suction, the material is sucked into the conveying silo through the material pipeline connected to the material.

[0031] 3. The utility model provides a conveying device combining compressed air positive pressure conveying and negative pressure suction conveying. The upper and lower material level devices can play a role in controlling materials during compressed air positive pressure conveying and negative pressure suction conveying.

[0032] In summary, the technical solution of the utility model solves the problem in the prior art that in order to realize positive pressure and negative pressure conveying of materials, one positive pressure conveying silo and one negative pressure conveying silo are required, which increases the equipment cost, and when the upper equipment space is limited, it is not possible to configure two silos. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 It is a schematic diagram of the structure of the utility model.

[0035] In the figure: 1. Exhaust port 2. Connecting to material inlet pipe B 3. Suction machine 4. Connecting to material inlet pipe A 5. Check valve 6. Upper material level indicator 7. Conveying silo 8. Lower material level indicator 9. Equipment bracket 10. Target equipment 11. Material bag 12. Material conveying pipe 13. Lower material rotary valve 14. Compressed air 15. Pressure-controlled solenoid valve. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0043] like Figure 1 As shown, the utility model provides a conveying device combining compressed air positive pressure conveying and negative pressure suction conveying, characterized in that it includes: a conveying silo 7, an equipment bracket 9, a target device 10, a positive pressure feeding conveying structure and a negative pressure suction conveying structure; the conveying silo 7 is fixed to the target device 10 through the equipment bracket 9 and bolts; the positive pressure feeding conveying structure and the negative pressure suction conveying structure are arranged on the conveying silo 7.

[0044] The positive pressure feeding and conveying structure includes: an exhaust port 1, a material conveying pipe 12 connected to the material inlet pipe A4, a material unloading rotary valve 13 and a pressure-controlled solenoid valve 15; the exhaust port 1 is arranged at the top of the conveying silo 7, and the exhaust port 1 is an outlet-only structure; the material inlet pipe A4 is arranged at the top of the conveying silo 7, located at the lower part of the exhaust port; the material inlet pipe A4 is connected to the external compressed air equipment and the silo through the material conveying pipe 12; the material conveying pipe 12 is provided with a unloading rotary valve 13 and a compressed air solenoid valve 15, which are used to control the material conveying switch and the opening / closing of the compressed air 14.

[0045] The negative pressure suction conveying structure includes: a docking material inlet pipe B2 and a suction machine 3; the docking material inlet pipe B2 is arranged at the top of the conveying silo 7, located at the lower part of the exhaust port 1; the docking material inlet pipe B2 is connected to the material bag 11 through a pipeline; the suction machine 3 is arranged at the top of the conveying silo 7, located between the docking material inlet pipe B2 and the docking material inlet pipe A4.

[0046] A one-way valve 5 is also provided on the upper portion of the conveying silo 7 , which is used to cooperate with the exhaust port 1 to discharge the excess air in the conveying silo 7 .

[0047] A material level sensor 6 is also provided on the upper part of the conveying silo 7 to determine the upper limit of the material in the conveying silo 7, and is connected to the external control system to transmit the detection signal to the external control system to control the unloading rotary valve 13, the suction machine 3, the one-way valve 5 and the air pressure solenoid valve 15.

[0048] A material level sensor 8 is also provided at the lower part of the conveying silo 7 to determine the lower limit of the material in the conveying silo 7, and is connected to the external control system to transmit the detection signal to the external control system to control the material discharge rotary valve 13, the suction machine 3, the one-way valve 5 and the air pressure solenoid valve 15.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A conveying device combining compressed air positive pressure conveying and negative pressure suction conveying, characterized in that: include: A conveying silo (7), an equipment bracket (9), a target device (10), a positive pressure material feeding and conveying structure, and a negative pressure material suction and conveying structure; The conveying silo (7) is fixed to the target equipment (10) via an equipment bracket (9) and bolts; The positive pressure feeding and conveying structure and the negative pressure suction and conveying structure are arranged on the conveying silo (7).

2. The conveying device combining compressed air positive pressure conveying and negative pressure suction conveying according to claim 1 is characterized in that: The positive pressure feeding and conveying structure comprises: an exhaust port (1), a material conveying pipeline (12) connected to a material pipeline A (4), a material discharge rotary valve (13) and a pressure-controlled solenoid valve (15); The exhaust port (1) is arranged at the top of the conveying bin (7), and the exhaust port (1) is a structure that only allows air to exit but not enter. The material inlet pipe A (4) is arranged at the top of the conveying silo (7) and is located below the exhaust port; The docking material pipeline A (4) is connected to the external compressed air equipment and the silo through the material conveying pipeline (12); The material conveying pipeline (12) is provided with a material unloading rotary valve (13) and a compressed air electromagnetic valve (15) for controlling the opening / closing of the material conveying switch and the compressed air (14).

3. The conveying device combining compressed air positive pressure conveying and negative pressure suction conveying according to claim 1 is characterized in that: The negative pressure suction material conveying structure comprises: a material pipe B (2) connected to the material suction machine (3); The material inlet pipe B (2) is arranged at the top of the conveying silo (7) and is located below the exhaust port (1); The docking material pipeline B (2) is connected to the material bag (11) through a pipeline; The suction machine (3) is arranged on the top of the conveying silo (7), and is located between the material inlet pipe B (2) and the material inlet pipe A (4).

4. The conveying device combining compressed air positive pressure conveying and negative pressure suction conveying according to claim 1 is characterized in that: A one-way valve (5) is also provided on the upper part of the conveying silo (7) for cooperating with the exhaust port (1) to discharge the excess air in the conveying silo (7).

5. The conveying device combining compressed air positive pressure conveying and negative pressure suction conveying according to claim 1 is characterized in that: The upper part of the conveying silo (7) is also provided with an upper material level device (6) to determine the upper limit of the material in the conveying silo (7), connect with the external control system, transmit the detection signal to the external control system, and control the unloading rotary valve (13), the suction machine (3), the one-way valve (5) and the air pressure solenoid valve (15).

6. The conveying device combining compressed air positive pressure conveying and negative pressure suction conveying according to claim 1 is characterized in that: A material level sensor (8) is also provided at the lower part of the conveying silo (7) to determine the lower limit of the material in the conveying silo (7), and is connected to an external control system to transmit a detection signal to the external control system to control the material discharging rotary valve (13), the suction machine (3), the one-way valve (5) and the air pressure solenoid valve (15).

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