Particle dilute phase conveying elutriator and conveying device

Abstract

According to the technical scheme, the elutriator for conveying the granular material dilute phase comprises an elutriation cylinder, an elutriation device and a conveying device, the feeding mechanism is used for changing the movement direction of the granules; the feeding mechanism is arranged on the elutriation cylinder; the material homogenizing mechanism is used for separating dust and small particles; the material homogenizing mechanism is arranged in the elutriation cylinder, and the material homogenizing mechanism is positioned below the feeding mechanism; a blowdown pipe; one end of the blowdown pipe is arranged on the elutriation cylinder, and the other end of the blowdown pipe is connected with the material homogenizing mechanism; the device has the advantage that dust and small particles in the dilute-phase conveying particles can be subjected to impurity removal and separation.

Description

Technical Field

[0001] The present application relates to the technical field of pellet conveying, and in particular to an elutriator and a conveying device for dilute phase conveying of pellets. Background Art

[0002] The pneumatic conveying system of granular materials can be divided into dense phase conveying and dilute phase conveying according to the wind speed. The wind speed of dense phase conveying is generally less than 10m / s, and the wind speed of dilute phase conveying can generally reach 18-30m / s. Due to the higher wind speed adopted by dilute phase conveying, the collision and friction of granular materials during the conveying process will generate more dust and small particles than dense phase conveying, causing dust and small particles to mix in the granular materials, thereby affecting the quality of the product. Therefore, it needs to be improved. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides an elutriation device for dilute phase conveying of granular materials to solve the problems existing in the related technology. The technical solution is as follows:

[0004] In the first aspect, an embodiment of the present application provides an elutriator for dilute phase conveying of granular materials, comprising: an elutriation cylinder; a feeding mechanism for changing the movement direction of the granular materials; the feeding mechanism is arranged on the elutriation cylinder; a material homogenizing mechanism for separating dust and small particles; the material homogenizing mechanism is arranged in the elutriation cylinder, and the material homogenizing mechanism is located below the feeding mechanism; an air supply pipe; one end of the air supply pipe is arranged on the elutriation cylinder, and the other end of the air supply pipe is connected to the material homogenizing mechanism.

[0005] In one embodiment, the material homogenization mechanism includes: a material homogenization cone cover and a circular ring plate; a plurality of filter holes are evenly arranged on the material homogenization cone cover; the material homogenization cone cover is arranged in the elutriation cylinder, and the material homogenization cone cover is located below the feeding mechanism; the circular ring plate is arranged at the lower end of the material homogenization cone cover; and the air supply pipe is connected to the circular ring plate.

[0006] In one embodiment, the pore size of the filter pores is 0.9 mm to 1.1 mm.

[0007] In one embodiment, the feeding mechanism includes: a horizontal tube, a curved tube and a drop tube; one end of the curved tube is connected to the horizontal tube, and the other end of the curved tube is connected to the drop tube; the drop tube is arranged on the elutriator, and the drop tube is located above the material homogenization cone cover.

[0008] In one embodiment, a drop cone body corresponding to and adapted to the material homogenizing cone cover is provided at the lower end of the drop pipe.

[0009] In one embodiment, an inverted cone is provided at the lower end of the elutriation cylinder; a pellet outlet is provided at the lower end of the inverted cone; and the air supply pipe is provided on the inverted cone.

[0010] In one embodiment, a powder outlet is provided at the upper end of the elutriation cylinder; and a baffle is provided in the powder outlet.

[0011] In a second aspect, an embodiment of the present application provides a conveying device including an elutriator for dilute phase conveying of granular materials.

[0012] In one embodiment, it further includes: a pellet buffer bin, a dust collector and a silo; the pellet buffer bin is connected to the feeding mechanism; the dust collector is connected to the powder outlet; and the silo is connected to the elutriation cylinder.

[0013] In one embodiment, a rotary valve and an acceleration chamber are sequentially provided at the output end of the pellet buffer bin.

[0014] The advantages or beneficial effects of the above technical solution include at least:

[0015] The elutriator for dilute phase conveying of granular materials of the present application, after the granular materials enter the elutriation cylinder from the feeding mechanism, are accelerated to fall onto the material homogenizing mechanism under the action of wind and are evenly dispersed. After air is introduced into the air supply pipe, the dust and small particles in the granular materials on the material homogenizing mechanism can be blown away, thereby separating the granular materials from the dust and small particles, thereby achieving the impurity removal effect of dilute phase conveying of granular materials.

[0016] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0018] Figure 1 This is a schematic diagram of the overall structure of the elutriator for dilute phase conveying of medium-sized granular materials in the utility model;

[0019] Figure 2 It is a working schematic diagram of the conveying device in the utility model.

[0020] In the figure: 1. elutriation cylinder; 2. feeding mechanism; 21. horizontal pipe; 22. curved pipe; 23. dropping pipe; 24. dropping cone; 3. material homogenizing mechanism; 31. material homogenizing cone cover; 32. circular ring plate; 4. air supply pipe; 51. inverted cone; 52. pellet outlet; 6. powder outlet; 71. pellet buffer bin; 72. dust collector; 73. silo; 81. rotary valve; 82. acceleration chamber. DETAILED DESCRIPTION

[0021] In the following, only certain exemplary embodiments are briefly described to make the objects, features, and advantages of the present invention more readily apparent. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides an elutriator for dilute phase conveying of granular materials, comprising: an elutriation cylinder 1; a feeding mechanism 2 for changing the movement direction of granular materials; the feeding mechanism 2 is arranged on the elutriation cylinder 1; a material homogenizing mechanism 3 for separating dust and small particles; the material homogenizing mechanism 3 is arranged in the elutriation cylinder 1, and the material homogenizing mechanism 3 is located below the feeding mechanism 2; an air supply pipe 4; one end of the air supply pipe 4 is arranged on the elutriation cylinder 1, and the other end of the air supply pipe 4 is connected to the material homogenizing mechanism 3.

[0025] In this embodiment, the elutriation cylinder 1 has a cavity inside, and the feeding mechanism 2, the material homogenizing mechanism 3 and the air supply pipe 4 are all located in the cavity; the feeding mechanism 2 can adjust the movement direction of the pellets so that the pellets enter the elutriation cylinder 1 more smoothly;

[0026] The working principle of the elutriator of the present application is as follows: after the granular material changes direction through the feeding mechanism 2 and enters the elutriation cylinder 1, the granular material is accelerated to fall onto the material homogenizing mechanism 3 and is evenly dispersed under the action of external pressure wind. After air is introduced into the air supply pipe 4, the air flow is blown upward to the material homogenizing mechanism 3, which can blow away the dust and small particles in the granular material on the material homogenizing mechanism 3, thereby separating the granular material from the dust and small particles, and achieving the impurity removal effect of dilute phase conveying of granular materials.

[0027] Furthermore, the material homogenization mechanism 3 includes: a material homogenization cone cover 31 and a circular ring plate 32; a plurality of filter holes are evenly arranged on the material homogenization cone cover 31; the material homogenization cone cover 31 is arranged in the elutriation cylinder 1, and the material homogenization cone cover 31 is located below the feeding mechanism 2; the circular ring plate 32 is arranged at the lower end of the material homogenization cone cover 31; the air supply pipe 4 is connected to the circular ring plate 32.

[0028] In this embodiment, the material homogenizing cone cover 31 has a funnel-shaped shape, with its tip facing one side of the feeding mechanism 2. After the granular material falls from the feeding mechanism 2, it impacts the material homogenizing cone cover 31, and the impact can effectively separate the dust and small particles adsorbed on the granular material; the annular plate 32 is circumferentially arranged at the lower end of the material homogenizing cone cover 31 and is connected to the air supply pipe 4, so that the air blown out of the air supply pipe 4 can be better blown to the material homogenizing cone cover 31;

[0029] Multiple filter holes are evenly arranged on the material homogenization cone cover 31. The filter holes allow the air blown out of the air supply pipe 4 to pass through. The air is blown out evenly upward from the above-mentioned filter holes, and the dust and small particles separated from the granular material can be blown to the upper end of the elutriation cylinder 1, thereby achieving the impurity removal and separation effect of the granular material.

[0030] Furthermore, the pore diameter of the filter hole is 0.9 mm to 1.1 mm.

[0031] In this embodiment, the aperture of the filter hole is set to 1 mm, so that when the air blown out of the air supply pipe 4 passes through the filter hole, the air flow effect is smoother.

[0032] Furthermore, the feeding mechanism 2 includes: a horizontal tube 21, a curved tube 22 and a drop tube 23; one end of the curved tube 22 is connected to the horizontal tube 21, and the other end of the curved tube 22 is connected to the drop tube 23; the drop tube 23 is arranged on the elutriator, and the drop tube 23 is located above the material homogenization cone cover 31.

[0033] In this embodiment, the horizontal tube 21 is set as a horizontal structure, and the drop tube 23 is set as a vertical structure. The horizontal tube 21 is connected to the external granular material input, and the two ends of the curved tube 22 are respectively connected to the horizontal tube 21 and the drop tube 23. The horizontal forward direction of the granular material can be adjusted to a vertical forward direction through the feeding mechanism 2. The granular material is accelerated downward to the material homogenizing cone cover 31 under the action of gravity and external pressure wind. The granular material is evenly dispersed after contact and collision with the material homogenizing cone cover 31.

[0034] Furthermore, a drop cone 24 corresponding to and adapted to the material homogenizing cone cover 31 is provided at the lower end of the drop pipe 23 .

[0035] In this embodiment, the drop cone 24 is arranged at the lower end of the drop pipe 23, and its shape is designed to be a funnel shape corresponding to the material homogenizing cone cover 31, so that the granular material can be evenly spread on the material homogenizing cone cover 31 after being discharged from the drop pipe 23.

[0036] Furthermore, an inverted cone 51 is provided at the lower end of the elutriation cylinder 1 ; a pellet outlet 52 is provided at the lower end of the inverted cone 51 ; and the air supply pipe 4 is provided on the inverted cone 51 .

[0037] In this embodiment, the lower end of the elutriation cylinder 1 is designed to be funnel-shaped, i.e., an inverted cone 51, and the pellet outlet 52 is arranged at the small-diameter end of the inverted cone 51. After the pellets fall into the inverted cone 51, they can be output from the pellet outlet 52 to the external material receiving structure.

[0038] Furthermore, a powder outlet 6 is provided at the upper end of the elutriation cylinder 1 ; a baffle is provided inside the powder outlet 6 .

[0039] In this embodiment, the powder outlet 6 is arranged at the upper end of the elutriation cylinder 1. When the dust and small particles separated from the granular material at the material homogenization mechanism 3 are blown to the upper end of the elutriation cylinder 1 by the air supply pipe 4, the dust can rise to the powder outlet 6 and be discharged; a baffle is provided in the powder outlet 6, which can effectively prevent the granular material from leaking from the powder outlet 6, thereby reducing material loss.

[0040] Example 2

[0041] like Figure 2 As shown, this embodiment provides a conveying device including an elutriator for dilute phase conveying of granular materials.

[0042] In this embodiment, the elutriator for dilute phase conveying of pellets can be applied to various different pellet conveying devices. The elutriator for dilute phase conveying of pellets has all the technical effects in Example 1. Therefore, when the elutriator for dilute phase conveying of pellets is applied to a pellet conveying device, it also has the same technical effects, which will not be repeated here.

[0043] Furthermore, it also includes: a granular material buffer bin 71, a dust collector 72 and a silo 73; the granular material buffer bin 71 is connected to the feeding mechanism 2; the dust collector 72 is connected to the powder outlet 6; and the silo 73 is connected to the elutriation cylinder 1.

[0044] In this embodiment, the pellet buffer bin 71 is used to store pellets to be conveyed in the dilute phase, the dust collector 72 is used to absorb dust, and the silo 73 is used to receive the pellets after separation and impurity removal; the pellet buffer bin 71 is connected to the feeding mechanism 2, and the pellets output by the feeding mechanism 2 can be input by the feeding mechanism 2 into the elutriation cylinder 1 for sorting and impurity removal, the dust collector 72 is connected to the powder outlet 6, and can absorb dust at the powder outlet 6, and the silo 73 is connected to the pellet outlet 52 of the elutriation cylinder 1, and the pellets after separation and impurity removal in the elutriation cylinder 1 can be output to the silo 73.

[0045] Furthermore, a rotary valve 81 and an acceleration chamber 82 are sequentially provided at the output end of the pellet buffer bin 71 .

[0046] In this embodiment, the rotary valve 81 and the acceleration chamber 82 are sequentially arranged on the output end pipeline of the pellet buffer bin 71 according to the conveying direction of the pellets, and can use the pressurized air of the Roots blower as power to convey the pellets in dilute phase into the elutriator.

[0047] The utility model provides an elutriator and conveying device for dilute phase conveying of granular materials. The functions of the various modules in the various devices in the embodiments can refer to the corresponding descriptions in the above methods, and the utility model has the advantage of being able to remove and separate dust and small particles in dilute phase conveyed granular materials.

[0048] In the description of this specification, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0049] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An elutriator for dilute phase conveying of granular materials, characterized in that: include: elutriation cylinder; A feeding mechanism, used to change the movement direction of the pellets; the feeding mechanism is arranged on the elutriation cylinder; A material homogenizing mechanism for separating dust and small particles; the material homogenizing mechanism is arranged in the elutriation cylinder and is located below the feeding mechanism; Air supply pipe; one end of the air supply pipe is arranged on the elutriation cylinder, and the other end of the air supply pipe is connected to the material homogenization mechanism.

2. The elutriator for dilute phase conveying of granular materials according to claim 1, characterized in that: The material homogenizing mechanism includes: a material homogenizing cone cover and a circular ring plate; a plurality of filter holes are evenly arranged on the material homogenizing cone cover; The material homogenizing cone cover is arranged in the elutriation cylinder, and the material homogenizing cone cover is located below the feeding mechanism; the annular plate is arranged at the lower end of the material homogenizing cone cover; and the air supply pipe is connected to the annular plate.

3. The elutriator for dilute phase conveying of granular materials according to claim 2, characterized in that: The pore diameter of the filter hole is 0.9 mm to 1.1 mm.

4. The elutriator for dilute phase conveying of granular materials according to claim 2, characterized in that: The feeding mechanism includes: a horizontal tube, a curved tube and a drop tube; one end of the curved tube is connected to the horizontal tube, and the other end of the curved tube is connected to the drop tube; the drop tube is arranged on the elutriator, and the drop tube is located above the material homogenizing cone cover.

5. The elutriator for dilute phase conveying of granular materials according to claim 4, characterized in that: A dropping cone body corresponding to and adapted to the material homogenizing cone cover is provided at the lower end of the dropping pipe.

6. The elutriator for dilute phase conveying of granular materials according to claim 1, characterized in that: An inverted cone is provided at the lower end of the elutriation cylinder; a pellet outlet is provided at the lower end of the inverted cone; and the air supply pipe is provided on the inverted cone.

7. The elutriator for dilute phase conveying of granular materials according to claim 1, characterized in that: A powder outlet is provided at the upper end of the elutriation cylinder; a baffle is provided inside the powder outlet.

8. A conveying device, characterized in that: The elutriator comprises the elutriator for dilute phase conveying of granular materials as described in any one of claims 1 to 7.

9. The conveying device according to claim 8, characterized in that Also includes: Granular material buffer bin, dust collector and silo; the granular material buffer bin is connected to the feeding mechanism; the dust collector is connected to the powder outlet; The silo is connected to the elutriation cylinder.

10. The conveying device according to claim 9, characterized in that A rotary valve and an acceleration chamber are sequentially arranged at the output end of the pellet buffer bin.

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