A method and device for realizing continuous counter-gravity dense phase conveying of granular materials

Abstract

The present invention relates to the field of vibratory conveying, and in particular to a method and device for realizing continuous counter-gravity dense-phase conveying of granular materials. The method for realizing continuous counter-gravity dense-phase conveying of granular materials includes: using a serrated tube, the side wall of which forms a plurality of serrated protrusions for realizing the conveying of granular materials; using a vibration mechanism for applying vibration to the serrated tube and / or for applying vibration to the granular materials; using a discharge pipe provided at the upper part of the serrated tube for receiving the granular materials output from the serrated tube; starting the vibration mechanism to continuously lift the granular materials from the storage mechanism to the collection mechanism; wherein, setting the minimum diameter of the serrated tube as d and the diameter of the granular materials as Φ, then 5 < d / Φ < 1000, the dimensionless vibration intensity Γ of the vibration mechanism > 2, and the vibration frequency > 10 Hz. It solves the technical problems of low conveying height, poor continuity and low efficiency of existing granular material conveying.

Description

Technical Field

[0001] The invention relates to the field of vibration conveying, and in particular to a method and a device for realizing continuous counter-gravity dense phase conveying of granular materials. Background Art

[0002] At present, the application of granular materials is widely involved in industries such as chemical, food, metallurgy, agriculture, aquaculture and pharmaceuticals. The processing of granular materials is by far the largest industrial activity, but since granular materials are discrete solid substances, they exhibit complex motion states during transportation. It is different from the transportation of traditional gases and liquids. Due to the characteristics of granular materials such as poor fluidity, easy clogging, uneven flow, instability, etc., there are many inconveniences and it is difficult to transport them through pumps. So far, the transportation of granular materials is usually intermittent, the transportation process consumes a lot of energy and has low efficiency, which is not enough to meet the needs of modern industrial production.

[0003] Among them, a method is to insert a lifting straight pipe into the granular material layer, apply vertical vibration by a vibration device, and the particles in the material layer rise along the straight pipe, thereby realizing continuous transportation of granular materials, such as a method and device for lifting or conveying particles and powder materials disclosed in Chinese Patent Publication No.: CN102874556A. However, this method is only applicable to the transportation of granular materials at a relatively low height, the transportation height is limited, the vibration intensity is high, and the system energy consumption is high. Therefore, for gas-solid flow with high particle density or single particle flow, there is currently no method or device that can increase the transportation height of granular materials and realize continuous and efficient transportation of granular materials. In particular, in some special scenarios, reliable continuous anti-gravity transportation technology and equipment for granular materials are more needed, such as: obtaining solid granular material samples from the surface of an unmanned environment, and more specifically, obtaining solid granular material samples from the surface of the moon and Mars in a controllable and efficient manner. Summary of the invention

[0004] Therefore, in view of the above problems, the present invention proposes a method and device for realizing continuous counter-gravity dense phase conveying of granular materials, which solves the technical problems of low conveying height, poor continuity and low efficiency of existing granular material conveying.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for achieving continuous counter-gravity dense phase conveying of granular materials, comprising:

[0007] A sawtooth tube is used, and a plurality of sawtooth-shaped protrusions are formed on its side wall, and the protrusions protrude from the inside to the outside and from the bottom to the top along the side wall of the sawtooth tube, so as to realize the conveyance of the granular material;

[0008] Utilize a vibration mechanism for applying vibration to the serrated tube and / or for applying vibration to the granular material;

[0009] Utilize a discharge pipe provided at the upper part of the serrated tube for receiving the granular material output from the serrated tube;

[0010] Insert the serrated tube into the storage mechanism of the granular material, connect the discharge pipe to the external collection mechanism of the granular material, and turn on the vibration mechanism, so as to continuously lift the granular material from the storage mechanism to the collection mechanism;

[0011] Wherein, set the minimum diameter of the serrated tube as d and the diameter of the granular material as Φ, then 5 < d / Φ < 1000, and Φ > 0.05 mm, the dimensionless vibration intensity Γ of the vibration mechanism > 2, and the vibration frequency > 10 Hz.

[0012] Furthermore, when the diameter of the granular material to be lifted is greater than 3 mm, adopt the method of mixing granular materials with a diameter less than 3 mm to achieve the co-lifting and conveying of the granular materials with a diameter greater than 3 mm, and then separate the granular materials with different particle sizes during discharging.

[0013] Furthermore, set the maximum diameter of the serrated tube as D, and set the height spacing between the position of the minimum diameter of the serrated tube and the adjacent maximum diameter position as H, then (D - d) / 2H is from tan5° to tan60°.

[0014] Furthermore, the vibration mechanism includes a transmission member which is disposed around the outer side wall of the serrated tube, and the horizontal height of the transmission member is at the middle part of the serrated tube.

[0015] Furthermore, the vibration mechanism includes a vibration rod which is disposed inside the serrated tube, the upper end of the vibration rod extends out of the upper end of the serrated tube, and the lower end of the vibration rod extends into the storage mechanism of the granular material along with the serrated tube.

[0016] Furthermore, the discharge pipe is inclined from top to bottom and from the end close to the serrated tube to the other end.

[0017] Furthermore, the vibration mechanism drives the serrated tube to perform periodic sinusoidal motion along the axis of the serrated tube.

[0018] Furthermore, it further includes an air flow device which is used to form a negative pressure at the outlet end of the serrated tube and / or the air flow device is used to form an air flow cycle between the inlet end and the outlet end of the serrated tube.

[0019] Furthermore, the negative pressure and / or the air flow cycle formed by the air flow device cannot achieve the floating of a single granular material.

[0020] A device for realizing continuous counter-gravity dense-phase conveying of granular materials based on the same inventive concept, which is used to execute the method for realizing continuous counter-gravity dense-phase conveying of granular materials.

[0021] By adopting the foregoing technical solution, the beneficial effects of the present invention are as follows:

[0022] 1. In this solution, a sawtooth tube is utilized. The sawtooth tube has a plurality of sawtooth-shaped protrusions. By applying vibration to the sawtooth tube or to the granular materials, friction can be formed between the granular materials and the inner wall of the sawtooth tube. Under the action of the frictional force, the granular materials rise along the sawtooth tube, forming a siphon phenomenon of the sawtooth tube on the granular materials. Of course, certain conditions need to be met here. It includes setting the minimum diameter of the sawtooth tube as d and the diameter of the granular materials as Φ, then 5 < d / Φ < 1000, and Φ > 0.05 mm. The dimensionless vibration intensity Γ of the vibration mechanism > 2, and the vibration frequency > 10 Hz. Among them, when the diameter of the granular materials is less than 0.05 mm, the lifting efficiency decreases sharply. And for the diameter of the granular materials, it is not recommended to be too large either. When the diameter of the granular materials is relatively large, such as Φ > 50 mm, its own gravity will cause a significant increase in the vibration that needs to be supplied, which is not conducive to the long-term use of the sawtooth tube. It is a better choice that the diameter between the granular materials is less than 50 mm. And the ratio range of the minimum diameter of the sawtooth tube to the diameter of the granular materials will also decrease with the increase of the diameter of the granular materials. For example, when the diameter of the granular materials is 1 mm, the preferred value of the minimum diameter of the sawtooth tube is 5 mm to 50 mm.

[0023] This solution increases an order of magnitude in terms of the time and height consumed for lifting the granular materials, and can also be conveyed without a top closure. The energy consumption of the system during the lifting process is lower, the force applied by the vibration mechanism is smaller, and the pipeline wear is less. Moreover, the lifting rate of the granular materials can be accurately controlled by adjusting the dimensionless vibration intensity and changing the sawtooth angle. Correspondingly, parameters such as the material, diameter size of the sawtooth tube, and particle size of the granular materials also need to be adjusted accordingly.

[0024] 2. The convex part bulges from the inside to the outside and from the bottom to the top along the side wall of the sawtooth tube, and its effect is better than the convex part bulging from the inside to the outside and from the top to the bottom along the side wall of the sawtooth tube. When the sawtooth tube is inserted into the external storage mechanism to realize the upward lifting of the granular material, the granular material in the sawtooth tube and the inner wall of the sawtooth tube generate an upward friction force. At this time, the friction force is greater than the gravity of the particles themselves, so that the particles in the sawtooth tube move upward with the vibration of the sawtooth tube. When the sawtooth tube is inserted downward into the particle layer, the sawtooth tube moves downward before the particles in the tube, and the bottom opening of the sawtooth tube collides with the particle layer to form an upward lifting force. The space of the lifted granular material is supplemented by the compacted particles around it. At this time, the lagging particles begin to fall back downward, and the contact with the sawtooth slope changes the direction of the force, preventing the particles in the middle from falling. As the vibration process proceeds, the particles in the sawtooth tube will gradually rise, thereby realizing the lifting of the granular material against gravity.

[0025] When the particle size of the granular material and the diameter of the sawtooth tube are well matched, when the granular material lifting and conveying device stops halfway, the sawtooth tube is still filled with particles, so the vibration mechanism can be started again to continue working.

[0026] 3. In the setting of the sawtooth tube, the best setting is to set the maximum diameter of the sawtooth tube to D, set the height distance between the minimum diameter position of the sawtooth tube and the adjacent maximum diameter position to H, then (Dd) / 2H is tan5° to tan60°. In this way, a better limit of the inner wall of the sawtooth tube can be achieved. The inner wall of the sawtooth tube also needs to have a certain friction force. There is no strict limit on the friction force. The conventional inner wall of the sawtooth tube can achieve it, and the roughness can also be adjusted according to actual needs.

[0027] 4. When the vibration mechanism includes a transmission member, it should be located in the middle of the sawtooth tube, preferably at 40%-60% of the horizontal height of the sawtooth tube. Of course, this position can be adjusted according to actual needs, but the lifting effect may be slightly worse. A part of the sawtooth tube needs to be immersed in the storage mechanism. If the transmission member is located higher, the vibration effect at the bottom may be poor. If the transmission member is located lower, the upward lifting ability may be weakened.

[0028] When the vibration mechanism includes a vibration rod, the vibration rod can be arranged inside the sawtooth tube, which can achieve direct contact with the granular material, thereby ejecting the granular material toward the tube wall of the sawtooth tube, thereby achieving a function similar to that of a transmission member and achieving counter-gravity lifting of the granular material.

[0029] Of course, in practical applications, the transmission member and the vibrating rod can be used in combination, that is, both the transmission member and the vibrating rod are provided, and the vibration frequency and dimensionless vibration intensity Γ of the transmission member and the vibrating rod are adjusted so that the transmission member and the vibrating rod achieve the best combination. Under normal circumstances, the vibration frequency and dimensionless vibration intensity Γ are the same.

[0030] 5. The discharge pipe is inclined from top to bottom and from one end close to the sawtooth pipe to the other end. The vibration mechanism drives the sawtooth pipe to perform periodic sinusoidal motion along the axis of the sawtooth pipe. Both are further limitations on the conveying method to achieve better results.

[0031] 6. It also includes an airflow device, which can be used to achieve good coordination with the vibration mechanism. Of course, the vibration mechanism is still the main one, and the airflow device mainly plays an auxiliary role. The negative pressure and / or airflow circulation formed by the airflow device do not need to achieve the floating of a single particle material. The main function of the airflow is to reduce the falling tendency of the particle material and increase the discharge tendency of the particle material, thereby greatly improving the lifting efficiency of the sawtooth tube. When the airflow device is applied, the efficiency can be increased by about 20% to 50%, while the energy consumption is only increased by about 5%. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] Figure 2 It is a schematic diagram of the sawtooth tube structure at different angles.

[0034] Figure 3 It is the lifting test diagram of different conveying pipelines when the dimensionless vibration intensity Γ=3.5.

[0035] Figure 4 It is the lifting test diagram of different conveying pipelines when the dimensionless vibration intensity Γ=5.

[0036] Figure 5 It is a schematic structural diagram of a second embodiment of the present invention.

[0037] Figure 6 It is a schematic structural diagram of the vibrating rod of the present invention.

[0038] Figure 7 It is an inverted state diagram of the sawtooth tube of the present invention.

[0039] Reference numerals:

[0040] 1. Serrated tube; 11. Protrusion; 21. Transmission part; 22. Vibration rod; 221. Vibration pit; 222. Flexible material layer; 223. Central through hole; 3. Granular material; 4. Discharge pipe; 5. Storage mechanism; 6. Collection mechanism; 71. Blowing mechanism; 72. Air guiding mechanism; 8. Collection container. Detailed implementation mode

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation modes.

[0042] Refer to Figures 1 to 4 As shown, this embodiment provides a method for realizing continuous counter-gravity dense-phase transportation of granular materials, including:

[0043] Utilize a serrated tube 1, on the side wall of which there are formed a plurality of serrated protrusions 11 for realizing the transportation of granular materials 3;

[0044] Utilize a vibration mechanism for applying vibration to the serrated tube 1;

[0045] Utilize a discharge pipe 4 provided at the upper part of the serrated tube 1 for receiving the granular materials 3 output by the serrated tube 1;

[0046] Insert the serrated tube 1 into the storage mechanism 5 of the granular materials 3, connect the discharge pipe 4 to the external collection mechanism 6 of the granular materials 3, and start the vibration mechanism, so as to continuously lift the granular materials 3 from the storage mechanism 5 to the collection mechanism 6;

[0047] Wherein, the minimum diameter of the serrated tube 1 is set as d, and the diameter of the granular material 3 is Φ, then 5 < d / Φ < 1000, and Φ > 0.05 mm, the dimensionless vibration intensity Γ of the vibration mechanism > 2, and the vibration frequency > 10 Hz. Further, 5 < d / Φ < 500, or 5 < d / Φ < 200, or 5 < d / Φ < 100, or 5 < d / Φ < 50, or 5 < d / Φ < 20.

[0048] Further, 2 < Γ < 10, or 2 < Γ < 6.

[0049] Further, 10 Hz < vibration frequency < 100 Hz, or 10 Hz < vibration frequency < 50 Hz, or 10 Hz < vibration frequency < 30 Hz, or 10 Hz < vibration frequency < 20 Hz.

[0050] Further, 0.05 mm < Φ < 0.10 mm, or 0.05 mm < Φ < 0.20 mm, or 0.05 mm < Φ 0.50 mm, or 0.05 mm < Φ < 1 mm, or 0.05 mm < Φ < 2 mm, or 0.05 mm < Φ < 5 mm, or 0.05 mm < Φ < 50 mm.

[0051] The protrusion 11 protrudes from the inside to the outside and from the bottom to the top along the side wall of the sawtooth tube 1. Of course, the protrusion may also be arc-shaped instead of the trapezoidal structure disclosed in the present solution. The shape of the protrusion may be replaced according to actual needs.

[0052] The maximum diameter of the sawtooth tube 1 is set to D, and the height distance between the minimum diameter position of the sawtooth tube 1 and the adjacent maximum diameter position is set to H, then (Dd) / 2H is tan5° to tan60°, and this ratio can be set according to actual needs, such as tan5°, or tan10°, or tan15°, or tan20°, or tan30°, or tan45°, or tan60°.

[0053] The vibration mechanism includes a transmission member 21, which is surrounded by the outer wall of the sawtooth tube 1. The horizontal height of the transmission member 21 is located in the middle of the sawtooth tube 1. Specifically, the horizontal height of the transmission member 21 can be located at 40%-60% of the height of the sawtooth tube 1. Of course, this numerical range can be increased or decreased, but it may slightly affect the lifting efficiency. The discharge pipe 4 is inclined from top to bottom and from one end close to the sawtooth tube 1 to the other end. Preferably, the vibration mechanism drives the sawtooth tube 1 to perform periodic sinusoidal motion along the axis of the sawtooth tube 1. Of course, other forms of motion are also possible, the purpose of which is to achieve an upward vibration posture of the sawtooth tube 1, thereby driving the granular material 3 to move upward, thereby achieving lifting against gravity.

[0054] The sawtooth tube 1 is preferably a round tube, but it can also be a tube of other shapes, such as a square tube or a polygonal tube.

[0055] The above disclosed scheme forms a device for realizing continuous counter-gravity dense phase conveying of granular materials of the same inventive concept. That is, it includes a sawtooth tube 1, whose side wall forms a plurality of sawtooth convex parts 11, and the convex parts 11 protrude from the inside to the outside and from the bottom to the top along the side wall of the sawtooth tube 1, and are used to realize the conveying of granular materials 3; a vibration mechanism, which is used to realize the vibration of the sawtooth tube 1; and a discharge pipe 4, which is arranged at the upper part of the sawtooth tube 1, and is used to receive the granular materials 3 output by the sawtooth tube 1. The continuous counter-gravity lifting of the granular materials is realized by the coordinated storage mechanism 5 and the collection mechanism 6.

[0056] Preferably, when the diameter of the granular material to be lifted is greater than 3 mm, a method of mixing granular materials with a diameter less than 3 mm is adopted to realize the joint lifting and conveying of granular materials with a diameter greater than 3 mm, and then separate granular materials with different particle sizes when discharging. Among them, it is better to control the diameter of small granular materials to 0.1 mm to 2 mm. For example, granular materials with a diameter of about 0.5 mm are lifted together, and then granular materials with a particle size of 0.5 mm are separated when discharging. It enhances the interaction between small granular materials and large granular materials, thereby reducing the probability and tendency of large granular materials falling, thereby enhancing the ability of large granular materials to move upward, so that a stronger lifting ability of large granular materials can be achieved.

[0057] Based on the above scheme, if Figure 1 As shown, the sawtooth tube 1 is 800mm long and has a minimum inner diameter of 14mm. It is vertically inserted into the storage mechanism 5. The storage mechanism 5 is equipped with glass beads with an average particle size of 150μm, a stacking density of 1450kg / m³, and a stacking height of 200mm. The insertion depth of the sawtooth tube 1 is 40mm. The bottom end of the sawtooth tube 1 is open, and the top end is equipped with a collecting container 8. A small hole is opened on the side to connect the inclined discharge pipe 4. The discharge pipe 4 is 100mm long and has an inner diameter of 10mm. The outlet end is connected to the collecting mechanism 6. Among them, (Dd) / 2H is approximately tan15°. Of course, the ratio of (Dd) / 2H can also be selected according to actual needs, such as Figure 2 As shown, it is a comparison diagram of the sawtooth tube 1 in different ratio states, wherein from left to right, the angle θ is 5°, 10°, 15°, 20°, and 30° respectively. Similarly, the angle θ can also be extended to 45° and 60°.

[0058] Before starting the vibration mechanism, check that the sawtooth tube 1 is fixed in place. The vibration mechanism starts to apply vertical vibration, and the particles in the sawtooth tube 1 are quickly lifted upward. When the particle layer is lifted to the collection container 8, the glass beads flow along the side opening to the inclined discharge pipe 4, and finally enter the receiving bin. At this time, the bottom of the sawtooth tube 1 continuously transports particles upward, and the top discharge pipe 4 continuously discharges materials. For example, when the vibration frequency is set to 12Hz and the dimensionless vibration intensity Γ is 3, the glass beads in the sawtooth tube 1 can be stably and linearly lifted upward to 800mm, while the straight tube cannot transport glass beads upward at low vibration intensity. Figure 3 When the dimensionless vibration intensity Γ is 5, the glass beads in the serrated tube 1 climb very quickly, but this can only be transported to a limited height in a straight tube, as shown in Figure 4 shown.

[0059] in Figure 3As shown, the height of the square tube is basically 0, as shown by the curve of the star-shaped points; the lifting height of the 800mm high sawtooth tube 1 reaches 800mm in about 30 seconds, as shown by the curve of the hollow dots; the lifting height of the 1200mm high sawtooth tube 1 reaches 1100mm in about 45 seconds, as shown by the curve of the solid dots. Among them, the curve shown by the hollow dots basically coincides with the curve shown by the solid dots. When the sawtooth tube 1 is inverted, its state is as follows Figure 7 As shown, the lifting height is basically 0.

[0060] Figure 4 As shown in the figure, the height of the square tube is only about 150mm at 20 seconds, only about 300mm at 40 seconds, and the highest height is only about 350mm; the lifting height of the 800mm high sawtooth tube 1 reaches 800mm at about 15 seconds, and the lifting height of the 1200mm high sawtooth tube 1 reaches 1100mm at about 20 seconds. Among them, the curve shown by the hollow dots is basically the same as the curve shown by the solid dots. When the sawtooth tube 1 is inverted, its state is as follows Figure 7 As shown, the lifting height is basically 0.

[0061] Refer to Figure 5 and Figure 6 As shown, compared with the above embodiment, the difference is that it also implements vibration on the granular material 3 and also includes an air flow device. Specifically:

[0062] The vibration mechanism also includes a vibration rod 22, which is arranged inside the sawtooth tube 1, the upper end of the vibration rod 22 extends out of the upper end of the sawtooth tube 1, and the lower end of the vibration rod 22 extends into the storage mechanism 5 of the granular material 3 along with the sawtooth tube 1. In actual application, the surface of the vibration rod 22 can be provided with a vibration pit 221. By using the setting of the vibration pit 221, the direction of the vibration ejection of the granular material 3 can be effectively changed. The vibration pit 221 can be an arc shape, a polygon, or other concave shapes. The preferred setting is that when the vibration ejection is performed, more than 60% of the granular material should be ejected upward. Moreover, the surface of the vibration rod 22 can be provided with a flexible material layer 222, such as rubber, and the vibration pits 221 are all arranged on the flexible material layer 222, so as to achieve better protection of the granular material 3. Among them, a central through hole 223 can also be provided in the middle of the vibration rod 22, or it can be solid.

[0063] The airflow device is used to form a negative pressure at the outlet end of the sawtooth tube 1, and / or the airflow device is used to form an airflow circulation between the inlet end and the outlet end of the sawtooth tube 1. The negative pressure and / or airflow circulation formed by the airflow device cannot achieve the floating of a single particle material 3. Figure 6As shown, the airflow device includes an air blowing mechanism 71 disposed below the inlet end of the sawtooth tube 1 and an air bleed mechanism 72 disposed above the outlet end of the sawtooth tube 1, thereby realizing the circulation of the airflow. Of course, the air bleed mechanism 72 can also be disposed separately, and the air bleed mechanism 72 is used to form a negative pressure at the outlet end. The number of the air blowing mechanism 71 and the air bleed mechanism 72 can be set according to actual needs, and their setting positions can also be adjusted according to actual needs. Preferably, as Figure 5 As shown, it is arranged at the peripheral side of the vibrating rod 22, and the vibrating rod 22 can be used as a vibrator and guide, which is more conducive to the rise of the airflow and the lifting of the auxiliary granular material 3. Moreover, the airflow will form a cushion-like existence near the vibrating rod 22, especially when the vibration pits 221 of the vibrating rod 22 are interconnected, the airflow will flow between the vibration pits 221, so as to form a better state similar to the air cushion, so as to better protect the particles. The addition of the airflow will make the particles in the middle of the pipeline basically present an ascending state in the process of mutual collision of the particles. This state will be more obviously reflected at the outlet end of the sawtooth tube 1 along the superposition of the convex parts 11, so that a greater lifting effect can be achieved with very little energy consumption.

[0064] In this solution, the airflow device and the vibrating rod 22 can be set up one by one, and not necessarily all of them need to be set up. That is to say, the transmission member 21 and the vibrating rod 22 can be set up one by one, or they can be set up together, and the airflow device can cooperate with at least one of the transmission member 21 and the vibrating rod 22 to lift the granular material.

[0065] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A method for achieving continuous counter-gravity dense phase conveying of granular materials, characterized in that: Comprising: Utilizing a serrated tube, the side wall of which forms a plurality of serrated convex portions, and the convex portions protrude in a manner from the inside to the outside and from the bottom to the top of the side wall of the serrated tube for realizing the conveying of granular materials; Utilizing a vibration mechanism for applying vibration to the serrated tube and for applying vibration to the granular materials, and the vibration mechanism drives the serrated tube to move along the axis of the serrated tube to realize an upward vibration attitude of the serrated tube; Utilizing a discharge pipe provided at the upper part of the serrated tube for receiving the granular materials output by the serrated tube; Inserting the serrated tube into the storage mechanism of the granular materials, connecting the discharge pipe to the external collection mechanism of the granular materials, and starting the vibration mechanism, so as to continuously lift the granular materials from the storage mechanism to the collection mechanism; Wherein, setting the minimum diameter of the serrated tube as d and the diameter of the granular materials as Φ, then 5 < d / Φ < 1000, and Φ > 0.05 mm, the dimensionless vibration intensity Γ of the vibration mechanism > 2, and the vibration frequency > 10 Hz.

2. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: When the diameter of the granular materials to be lifted is greater than 3 mm, a method of mixing granular materials with a diameter less than 3 mm is adopted to realize the co-lifting and conveying of the granular materials with a diameter greater than 3 mm, and then the granular materials with different particle sizes are separated during discharging.

3. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: Setting the maximum diameter of the serrated tube as D, and setting the height spacing between the position of the minimum diameter of the serrated tube and the adjacent maximum diameter position as H, then (D - d) / 2H is from tan5° to tan60°.

4. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: The vibration mechanism includes a transmission member which is disposed around the outer side wall of the serrated tube, and the horizontal height of the transmission member is located at the middle part of the serrated tube.

5. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: The vibration mechanism includes a vibration rod which is disposed inside the serrated tube, the upper end of the vibration rod extends out of the upper end of the serrated tube, and the lower end of the vibration rod extends into the storage mechanism of the granular materials along with the serrated tube.

6. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: The discharge pipe is inclined from top to bottom and from the end close to the serrated tube to the other end.

7. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: The vibration mechanism drives the serrated tube to perform periodic sinusoidal motion along the axis of the serrated tube.

8. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 1, characterized in that: It further includes an air flow device which is used to form negative pressure at the outlet end of the serrated tube, and / or the air flow device is used to form an air flow cycle between the inlet end and the outlet end of the serrated tube.

9. A method for realizing continuous counter-gravity dense phase conveying of granular materials according to claim 8, characterized in that: The negative pressure and / or air flow cycle formed by the air flow device cannot realize the floating of a single granular material.

10. A device for realizing continuous counter-gravity dense phase conveying of granular materials, characterized in that: Including a device for executing a method for realizing continuous counter-gravity dense-phase conveying of granular materials as described in any one of claims 1 to 9.

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