Powdery material conveying system

Abstract

The utility model discloses a powdery material conveying system which comprises a mineral powder tank, a discharging section communicated with a conveying assembly is arranged at the bottom end of the mineral powder tank, a roller body is arranged in the discharging section in a rotating mode, a plurality of fixing plates are arranged on the outer wall of the roller body at intervals, and a material storage cavity is formed between the adjacent fixing plates and the roller body. The material storage cavity close to the mineral powder tank receives materials falling from the bottom of the mineral powder tank and then rotates to the end close to the conveying assembly, and meanwhile the materials in the material storage cavity fall into the conveying assembly. According to the mineral powder feeding device disclosed by the utility model, the quantitative feeding of powdery materials can be realized through the material storage cavity formed between the roller body rotationally arranged in the discharging section and the fixed plate, and the powdery materials are pumped into the mineral powder tank through the pump body to be supplemented; the positive pressure generated when the powdery materials are pumped into the mineral powder tank and the negative pressure generated at the conveying assembly do not affect discharging of the powdery materials, and more accurate material quantity supply is carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder material conveying, in particular to a powder material conveying system. Background Art

[0002] The powder material conveying system is used for conveying powder materials in the mining industry and for quantitatively supplying powder materials. In the prior art, a conveying system is provided with a screw conveyor at the discharge port at the bottom of the mineral powder tank, and a gate valve is provided at the discharge port at the bottom of the mineral powder tank to control the opening and closing state of the discharge port.

[0003] During the operation of this powder material conveying system, the material in the mineral powder tank will be replenished. The replenishment of the material in the mineral powder tank is generally done by pumping the powdered material into the mineral powder tank through a pump body. Since the powdered material will generate positive pressure when being pumped into the mineral powder tank, and the bottom end of the mineral powder tank, especially the end of the screw conveyor, will generate negative pressure, the material will continue to fall into the screw conveyor through the gate valve and be transported during the material addition process, which will cause excessive supply of this powdered material. Utility Model Content

[0004] The present invention aims to solve the problems in the prior art and proposes the following technical solutions:

[0005] The utility model provides a powder material conveying system, comprising:

[0006] A mineral powder tank, wherein the bottom end of the mineral powder tank is provided with a discharge section connected to the conveying assembly, a roller body is rotatably arranged in the discharge section, a plurality of fixed plates are spaced apart on the outer wall of the roller body, and a storage cavity is formed between adjacent fixed plates and roller bodies. The storage cavity close to the mineral powder tank receives the material falling from the bottom of the mineral powder tank and then rotates to one end close to the conveying assembly, and at the same time, the material in the storage cavity falls into the conveying assembly.

[0007] As a preferred embodiment of the above technical solution, arc-shaped end face 1 and arc-shaped end face 2 are respectively provided on the relative inner side walls of the unloading section. When the roller body rotates, there is at least one corresponding fixed plate on the side where the arc-shaped end face 1 and the arc-shaped end face 2 are located, which is movably fitted with them to prevent materials from falling into the conveying assembly from places other than the storage cavity.

[0008] As a preferred embodiment of the above technical solution,

[0009] As a preferred embodiment of the above technical solution, a driving member is provided outside the unloading section, an output end of the driving member is connected to the roller body, and the driving member drives the roller body to rotate.

[0010] As a preferred embodiment of the above technical solution, the front and rear ends of the roller body are both provided with mounting shafts, the mounting shafts are rotatably connected to the front and rear side walls of the blanking section, and the output end of the driving member is connected to one of the mounting shafts.

[0011] As a preferred embodiment of the above technical solution, the conveying assembly includes a conveying pipe and a screw conveyor arranged inside the conveying pipe, and the conveying pipe is connected to the unloading section.

[0012] An open feed port is provided on the top of the mineral powder tank.

[0013] The beneficial effects of the utility model are:

[0014] The utility model can realize the quantitative feeding of powdered materials through the roller body rotatably arranged in the unloading section and the storage cavity formed between the fixed plate. When the powdered materials are pumped into the mineral powder tank by the pump body for material replenishment, the positive pressure generated when the powdered materials are pumped into the mineral powder tank and the negative pressure generated at the conveying component will not affect the unloading of the powdered materials. Therefore, compared with the arrangement of the plug valve in the conveying component, the device can avoid excessive supply of powdered materials and provide more accurate material quantity supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic front view of a conveying system in an embodiment;

[0016] Figure 2 Shown is a schematic cross-sectional view of a delivery system in an embodiment;

[0017] Figure 3 Shown is Figure 2 A schematic diagram of the structure enlargement at point A;

[0018] Figure 4 Shown is a schematic diagram of the cooperation between the roller body and the blanking section (side view);

[0019] Figure numerals: 10, mineral powder tank; 11, feed port; 20, unloading section; 22, roller body; 221, mounting shaft; 23, fixing plate; 24, arc-shaped end face 1; 25, arc-shaped end face 2; 26, driving part; 30, conveying assembly; 31, conveying pipeline; 32, screw conveyor. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] Example

[0022] like Figure 1 、 Figure 2 、 Figure 3 As shown, Figure 1 Shown is a schematic front view of a conveying system in an embodiment; Figure 2Shown is a schematic cross-sectional view of a delivery system in an embodiment; Figure 3 Shown is Figure 2 A schematic diagram of the structure at point A in the figure.

[0023] The device includes:

[0024] The mineral powder tank 10 has a discharge section 20 connected to the conveying assembly 30 at the bottom end of the mineral powder tank 10. A roller body 22 is rotatably arranged in the discharge section 20. A plurality of fixed plates 23 are spaced apart on the outer wall of the roller body 22. A storage cavity is formed between adjacent fixed plates 23 and the roller body 22. The storage cavity close to the mineral powder tank 10 receives the material falling from the bottom of the mineral powder tank 10 and then rotates to one end close to the conveying assembly 30. At the same time, the material in the storage cavity falls into the conveying assembly 30.

[0025] Specifically, the mineral powder tank 10 is funnel-shaped, and an open feed port 11 is provided on the top of the mineral powder tank 10 . In this embodiment, the number of the fixing plates 23 is set to six.

[0026] The bottom outlet of the mineral powder tank 10 is connected to the unloading section 20 and the conveying assembly 30 in sequence. The storage chamber formed between the rotating roller 22 and the fixed plate 23 in the unloading section 20 can realize the quantitative feeding of powdered materials. When the pump body draws the powdered materials into the mineral powder tank 10 for material replenishment, the positive pressure generated when the powdered materials are drawn into the mineral powder tank 10 and the negative pressure generated at the conveying assembly 30 will not affect the unloading of the powdered materials. Therefore, compared with setting a plug valve in the conveying assembly 30, this device can avoid excessive supply of powdered materials and provide more accurate material quantity supply.

[0027] like Figure 2 、 Figure 3 As shown, Figure 2 Shown is a schematic cross-sectional view of a delivery system in an embodiment; Figure 3 Shown is Figure 2 A schematic diagram of the structure at point A in the figure.

[0028] The opposite inner side walls of the unloading section 20 are respectively provided with an arc-shaped end surface 1 24 and an arc-shaped end surface 25. When the roller body 22 rotates, there is at least one fixed plate 23 on each side of the arc-shaped end surface 1 24 and the arc-shaped end surface 25 to movably fit with them to prevent the material from falling into the conveying assembly 30 from places other than the storage cavity.

[0029] By setting the arcuate end face 1 24 and the arcuate end face 25 that match the rotation path of the fixed plate 23, any fixed plate 23 is in contact with the arcuate end face 1 24 and the arcuate end face 25 when it rotates to them, thereby avoiding the gap between the fixed plate 23 and the inner side wall of the discharge section 20, which causes the material to directly fall into the conveying component 30 through the gap and affect the quantitative supply of the material.

[0030] like Figure 4 As shown, Figure 4 Shown is a schematic diagram of the cooperation between the roller body and the blanking section (side view);

[0031] A driving member 26 is provided outside the unloading section 20 . The output end of the driving member 26 is connected to the roller body 22 . The driving member 26 drives the roller body 22 to rotate.

[0032] The front and rear ends of the roller body 22 are both provided with mounting shafts 221 , which are rotatably connected to the front and rear side walls of the blanking section 20 . The output end of the driving member 26 is connected to one of the mounting shafts 221 .

[0033] The driving member 26 is a motor installed on the front outer side wall of the unloading section 20. The output end of the driving member 26 is fixedly connected to the front mounting shaft 221 of the roller body 22 to drive the roller body 22 to rotate.

[0034] There is no gap between the roller body 22 and the front and rear inner side walls of the material discharge section 20 through which the material can fall directly.

[0035] like Figure 2 As shown, Figure 2 Shown is a schematic cross-sectional view of a conveying system in an embodiment.

[0036] The conveying assembly 30 includes a conveying pipe 31 and a screw conveyor 32 disposed inside the conveying pipe 31 . The conveying pipe 31 is connected to the unloading section 20 .

[0037] The screw conveyor 32 is a structure in the prior art that can convey materials by rotating, and will not be described in detail here.

[0038] Working principle: When this device is conveying powdered materials, the driving member 26 is turned on to rotate the roller body 22 and the fixed plate 23, so that the material falling from the bottom of the mineral powder tank 10 continuously falls into the storage cavity formed between the adjacent fixed plates 23, and the fixed plate 23 is continuously rotated to one end close to the conveying component 30, so that the material in the storage cavity is quantitatively delivered to the conveying component 30.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Powdered material conveying system, characterized in that: include: A mineral powder tank (10) is provided with a discharge section (20) connected to a conveying assembly (30) at the bottom end of the mineral powder tank (10), a roller body (22) is rotatably provided in the discharge section (20), a plurality of fixed plates (23) are spaced apart on the outer wall of the roller body (22), and a storage cavity is formed between adjacent fixed plates (23) and the roller body (22), and the storage cavity close to the mineral powder tank (10) receives the material falling from the bottom of the mineral powder tank (10) and then rotates to one end close to the conveying assembly (30), and at the same time, the material in the storage cavity falls into the conveying assembly (30).

2. The powder material conveying system according to claim 1, characterized in that: The opposite inner side walls of the unloading section (20) are respectively provided with an arc-shaped end surface 1 (24) and an arc-shaped end surface 2 (25). When the roller body (22) rotates, there is at least one fixed plate (23) corresponding to each side of the arc-shaped end surface 1 (24) and the arc-shaped end surface 2 (25) and movably fits with them to prevent materials from falling into the conveying assembly (30) from places other than the storage cavity.

3. The powder material conveying system according to claim 1, characterized in that: A driving member (26) is provided outside the unloading section (20), an output end of the driving member (26) is connected to the roller body (22), and the driving member (26) drives the roller body (22) to rotate.

4. The powder material conveying system according to claim 3, characterized in that: The front and rear ends of the roller body (22) are both provided with mounting shafts (221), the mounting shafts (221) are rotatably connected to the front and rear side walls of the blanking section (20), and the output end of the driving member (26) is connected to one of the mounting shafts (221).

5. The powder material conveying system according to claim 1, characterized in that: The conveying assembly (30) comprises a conveying pipe (31) and a screw conveyor (32) arranged inside the conveying pipe (31); the conveying pipe (31) is connected to the unloading section (20).

6. The powder material conveying system according to claim 1, characterized in that: An open feed port (11) is provided on the top of the mineral powder tank (10).

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