Device for preventing air inflation pipe of flotation machine from being blocked

Abstract

The utility model relates to a device for preventing a flotation machine inflation pipe from being blocked. The device for preventing the air inflation pipe of the flotation machine from being blocked comprises a flotation tank and a stirring column arranged in the flotation tank, the flotation tank is communicated with outside air through the air inflation pipe arranged in the stirring column, the device further comprises a round one-way gate arranged in the air inflation pipe and located at the tail end of the air inflation pipe, and one end of the round one-way gate is hinged to the inner wall of the air inflation pipe; the other end is in sliding contact with the inner wall of the inflation tube; the through holes are formed in the circular one-way gate; and the elastic piece is arranged between the circular one-way gate and the inflating pipe. The circular one-way gate is arranged to control opening and closing of the tail end of the inflation pipe, so that after flotation operation is finished, when part of ore pulp is about to reversely enter the inflation pipe, the part of ore pulp can be blocked by the circular one-way gate, the phenomenon that the inflation pipe is blocked is avoided, and then it is guaranteed that the amount of air entering the flotation tank is not affected in subsequent flotation operation.

Description

Technical Field

[0001] The present application relates to the technical field of flotation machines, and in particular to a device for preventing a flotation machine inflation pipe from being blocked. Background Art

[0002] Flotation is the most widely used method in mineral separation. Flotation is achieved by circulating the slurry to change the interface properties of the minerals and realize flotation separation. It is an important part of mineral separation research. It is well known that the research and development of flotation equipment is of great significance to improving the comprehensive recycling of minerals. The hanging trough flotation machine is the most commonly used and most important equipment for mineral flotation research in mineral processing laboratories. It mainly performs ore selectivity research and various flotation tests by performing operations such as stirring, separating and selecting a small amount of ore samples, and finally determines whether the target mineral has recycling value.

[0003] like Figure 1 As shown, the stirring part 1 of the flotation machine is arranged in the flotation tank 2, and the stirring part 1 includes a flotation column 3, a stirring shaft 4 and an impeller 5. The stirring shaft 4 is arranged inside the stirring column and connected to the impeller 5. The charging pipe 6 passes through the stirring column 3 and is connected to the inside of the flotation tank 2. Before the flotation starts, the stirring part 1 is started first to fully mix the ore pulp and the mineral processing reagent, and a negative pressure circle is formed in the middle of the ore pulp, and then the charging valve 7 is opened. After the air passes through the flow meter 14, it enters the flotation tank 2 along the charging pipe 6 and participates in the action cycle of the ore pulp and the reagent.

[0004] However, when the flotation operation is completed, as the stirring part 1 stops, the negative pressure circle disappears. At this time, as the negative pressure decreases, part of the slurry will reversely enter the inflation pipe 6 and accumulate in the inflation pipe 6. Over time, the inflation pipe 6 is blocked, resulting in a reduction in the amount of air entering the flotation tank 2 in subsequent flotation operations. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a device for preventing the clogging of the inflation pipe of a flotation machine.

[0006] To achieve the above objectives, this application is implemented through the following technical solutions:

[0007] A device for preventing the flotation machine from being blocked by an air pipe comprises a flotation cell and a stirring column arranged in the flotation cell, wherein the flotation cell is connected to the outside air through the air pipe arranged inside the stirring column, and the device for preventing the flotation machine from being blocked by an air pipe further comprises:

[0008] A circular one-way gate is arranged inside the inflatable tube and at the end of the inflatable tube, one end of which is hinged to the inner wall of the inflatable tube and the other end is in sliding contact with the inner wall of the inflatable tube;

[0009] A number of through holes formed on the circular one-way gate;

[0010] An elastic member disposed between the circular one-way gate and the inflation tube.

[0011] Optionally, a mounting block is fixed to the inner wall of the inflation tube, and the mounting block is hinged to the circular one-way gate through a rotating shaft.

[0012] Optionally, a micro cylinder is arranged above the circular one-way gate.

[0013] Optionally, the elastic member is a spring, one end of which is fixedly connected to the inner wall of the inflation tube, and the other end of which is fixedly connected to the lower end surface of the circular one-way gate.

[0014] Optionally, the elastic member is a flexible telescopic belt, one end of which is fixedly connected to the inner wall of the inflation tube, and the other end of which is fixedly connected to the upper end surface of the circular one-way gate.

[0015] Optionally, the circular one-way gate is made of hard plastic.

[0016] Optionally, the movement of the micro cylinder is controlled by a controller.

[0017] The beneficial effects of the present application are as follows: the present application sets a circular one-way gate to control the opening and closing of the end of the inflation pipe, so that after the flotation operation is completed, when part of the ore pulp wants to reversely enter the inflation pipe, it will be blocked by the circular one-way gate, thereby avoiding the phenomenon of inflation pipe blockage, and then ensuring that the amount of air entering the flotation tank is not affected in subsequent flotation operations.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0020] Figure 1 It is a structural schematic diagram of a flotation machine shown in an embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of part A of the device for preventing the flotation machine inflation pipe from being blocked, shown in the second embodiment of the present application;

[0022] Figure 3 It is another structural schematic diagram of part A of the device for preventing the flotation machine inflation pipe from being blocked shown in the third embodiment of the present application;

[0023] Figure 4 The top view of the circular one-way gate shown in the embodiment of the present application.

[0024] Figure numerals: 1 stirring part, 2 flotation tank, 3 stirring column, 4 stirring shaft, 5 impeller, 6 inflation pipe, 7 inflation valve, 8 circular one-way gate, 9 through hole, 10 elastic member, 11 mounting block, 12 rotating shaft, 13 micro cylinder, 14 flow meter. DETAILED DESCRIPTION

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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 at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific situation.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0030] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0031] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0032] In order to make the purpose, technical solutions and beneficial effects of the present application clearer, the preferred embodiments of the present application will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technical personnel.

[0033] Embodiment 1:

[0034] See also Figure 1 , Figure 2 and Figure 4 A device for preventing the flotation machine from being blocked by an air pipe comprises a flotation cell 2 and a flotation column 3 arranged in the flotation cell 2, wherein the flotation cell 2 is connected to the outside air through an air pipe 6 arranged inside the flotation column 3, and the device for preventing the flotation machine from being blocked by an air pipe further comprises:

[0035] A circular one-way gate 8 is arranged inside the air-filled tube 6 and at the end of the air-filled tube 6, one end of which is hinged to the inner wall of the air-filled tube 6, and the other end of which is in sliding contact with the inner wall of the air-filled tube 6;

[0036] A plurality of through holes 9 formed on the circular one-way gate 8;

[0037] An elastic member 10 is disposed between the circular one-way gate 8 and the inflation tube 6 .

[0038] like Figure 1 As shown, a stirring shaft 4 is also provided inside the flotation tank 2, and an impeller 5 is connected to the lower end of the stirring shaft 4;

[0039] See also Figure 2 and Figure 3 Initially, due to the supporting effect of the elastic member 10, the circular one-way gate 8 is always in a closed state. When the flotation operation is carried out, the stirring shaft 4 is started, and the impeller 5 rotates, so that the slurry in the flotation tank 2 and the ore dressing agent are fully mixed, and a negative pressure circle is formed in the middle of the slurry. The inflation valve 7 is opened, and the outside air enters the flotation tank 2 along the inflation pipe 6. The air pressure acts on the circular one-way gate 8, so that the circular one-way gate 8 rotates, and the end of the inflation pipe 6 opens, and the gas participates in the action cycle of the slurry and the agent; when the flotation operation is completed, the inflation valve 7 is closed, and the stirring shaft 4 stops rotating. As the negative pressure weakens and disappears, the circular one-way gate 8 is reset, so that the end of the inflation pipe 6 is closed. When part of the slurry wants to reversely enter the inflation pipe 6 as the negative pressure weakens, it will be blocked by the circular one-way gate 8, thereby avoiding the phenomenon of blockage of the inflation pipe 6, thereby ensuring that the amount of air entering the flotation tank 2 is not affected in the subsequent flotation operation.

[0040] If there is gas retained in the inflation tube 6, it will make it difficult to open the inflation valve 7 at the next start. Therefore, in the present embodiment, a plurality of through holes 9 are provided on the circular one-way gate 8. The through holes 9 are small air holes. The gas retained in the inflation tube 6 can enter the flotation tank 2 through the through holes 9, thereby preventing the gas from being retained in the inflation tube 6 after shutdown, and enabling the inflation valve 7 to be opened smoothly at the next start.

[0041] Embodiment 2:

[0042] See also Figure 2 and Figure 3 Based on the first embodiment, further and optionally, a mounting block 11 is fixed to the inner wall of the inflation tube 6 , and the mounting block 11 is hinged to the circular one-way gate 8 through a rotating shaft 12 .

[0043] Such arrangement enables the circular one-way gate 8 to be fixed on the inner wall of the inflation tube 6 , and the circular one-way gate 8 to rotate around the rotating shaft 12 .

[0044] Further and optionally, a micro cylinder 13 is arranged above the circular one-way gate 8 .

[0045] After the flotation operation is completed, considering that a small amount of slurry will adhere to the bottom of the circular one-way gate 8, causing the weight of the circular one-way gate 8 to increase, when the weight exceeds the load of the elastic member 10, the circular one-way gate 8 is difficult to maintain a closed state, resulting in a decrease in its performance. Therefore, in this embodiment, a micro cylinder 13 is arranged above the circular one-way gate 8. The micro cylinder 13 is fixed on the inner wall of the inflation tube 6 and is located on the side away from the rotating shaft 12. Under normal circumstances, the micro cylinder 13 does not work. When the flotation operation is completed, the micro cylinder 13 is started to expand and contract at a certain frequency. The expansion rod hits the circular one-way gate 8, causing the circular one-way gate 8 to vibrate, thereby shaking off the slurry adhered to the bottom of the circular one-way gate 8.

[0046] It should be noted that the micro cylinder 13 should preferably be of a type with a smaller telescopic force to avoid damage to the circular one-way gate 8. In addition, compared with other cylinders, the micro cylinder 13 is smaller in size, and its diameter can be as small as 2.5 mm.

[0047] Further and optionally, the elastic member 10 is a spring, one end of which is fixedly connected to the inner wall of the inflation tube 6 , and the other end of which is fixedly connected to the lower end surface of the circular one-way gate 8 .

[0048] Specifically, Figure 2 As shown, when the elastic member 10 is located at the lower end of the circular one-way gate 8, the elastic member 10 is a spring at this time, and its two ends are fixedly connected to the inner wall of the inflation tube 6 and the lower end surface of the circular one-way gate 8 respectively, the stirring shaft 4 is started, and the impeller 5 rotates, so that the slurry in the flotation tank 2 and the ore dressing agent are fully mixed, and a negative pressure circle is formed in the middle of the slurry, and the inflation valve 7 is opened, and the outside air enters the flotation tank 2 along the inflation tube 6. The air pressure acts on the circular one-way gate 8, so that the spring is compressed, and the circular one-way gate 8 rotates downward, so that the end of the inflation tube 6 is opened, and the gas participates in the action cycle of the slurry and the agent; the flotation operation is completed, the inflation valve 7 is closed, and the stirring shaft 4 stops rotating. As the negative pressure weakens and disappears, the spring is reset and pushes the circular one-way gate 8 to rotate upward, so that the end of the inflation tube 6 is closed.

[0049] Embodiment three:

[0050] Further and optionally, the elastic member 10 is a flexible telescopic band, one end of which is fixedly connected to the inner wall of the inflation tube 6 , and the other end of which is fixedly connected to the upper end surface of the circular one-way gate 8 .

[0051] like Figure 3As shown, when the elastic member 10 is located at the upper end of the circular one-way gate 8, the elastic member 10 is a flexible telescopic belt, and its two ends are fixedly connected to the inner wall of the inflation tube 6 and the upper end surface of the circular one-way gate 8 respectively; initially, due to the stretching effect of the flexible telescopic belt, the circular one-way gate 8 is closed. When the outside air enters the flotation tank 2 along the inflation tube 6, the air pressure acts on the circular one-way gate 8, and the circular one-way gate 8 rotates downward, so that the end of the inflation tube 6 is opened. At this time, the flexible telescopic belt is extended, and the gas participates in the action cycle of the slurry and the reagent; when the flotation operation is completed, the flexible telescopic belt contracts and drives the circular one-way gate 8 to reset, so that the end of the inflation tube 6 is closed.

[0052] Further and optionally, the circular one-way gate 8 is made of hard plastic.

[0053] Compared with metal materials, hard plastics are light in weight, good in mechanical properties, and high in specific strength (ratio of strength to density), so they can be made into light and high-strength products. In particular, after being filled with glass fiber, their strength can be further improved. In addition, since plastics are light in weight, the circular one-way gate 8 is also easier to open when air pressure acts.

[0054] Further and optionally, the action of the micro cylinder 13 is controlled by a controller.

[0055] The opening, closing and extension frequency of the micro cylinder 13 are controlled by a controller. When the program is set, the micro cylinder 13 can work stably and continuously.

[0056] In summary, the present application sets a circular one-way gate 8 to control the opening and closing of the end of the inflation pipe 6, so that after the flotation operation is completed, when part of the slurry wants to reversely enter the inflation pipe 6, it will be blocked by the circular one-way gate 8, thereby avoiding the phenomenon of blockage of the inflation pipe 6, and then ensuring that the amount of air entering the flotation cell 2 is not affected in the subsequent flotation operation; the present application sets a plurality of through holes 9 on the circular one-way gate 8, so that the gas retained in the inflation pipe 6 can enter the flotation cell 2 through the through holes 9, thereby avoiding it from being retained in the inflation pipe 6 after shutdown, and then the inflation valve 7 can be smoothly opened when it is started next time.

[0057] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application; the dimensions of the drawings are not related to the specific objects, and the dimensions of the objects can be changed arbitrarily.

Claims

1. A device for preventing the clogging of an air filling pipe of a flotation machine, comprising a flotation tank (2) and a stirring column (3) arranged in the flotation tank (2), wherein the flotation tank (2) is connected to the outside air through an air filling pipe (6) arranged inside the stirring column (3), and characterized in that: The device for preventing the flotation machine inflation pipe from being blocked also includes: A circular one-way gate (8) is arranged inside the air-filled tube (6) and located at the end of the air-filled tube (6), one end of which is hinged to the inner wall of the air-filled tube (6) and the other end of which is in sliding contact with the inner wall of the air-filled tube (6); A plurality of through holes (9) formed on the circular one-way gate (8); An elastic member (10) is arranged between the circular one-way gate (8) and the inflation tube (6).

2. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 1, characterized in that: A mounting block (11) is fixed to the inner wall of the inflation tube (6), and the mounting block (11) is hinged to the circular one-way gate (8) via a rotating shaft (12).

3. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 1, characterized in that: A micro cylinder (13) is arranged above the circular one-way gate (8).

4. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 1, characterized in that: The elastic member (10) is a spring, one end of which is fixedly connected to the inner wall of the inflation tube (6), and the other end of which is fixedly connected to the lower end surface of the circular one-way gate (8).

5. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 1, characterized in that: The elastic member (10) is a flexible telescopic belt, one end of which is fixedly connected to the inner wall of the inflation tube (6), and the other end of which is fixedly connected to the upper end surface of the circular one-way gate (8).

6. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 1 or 3, characterized in that: The circular one-way gate (8) is made of hard plastic.

7. The device for preventing the flotation machine inflation pipe from being blocked as claimed in claim 3, characterized in that: The action of the micro cylinder (13) is controlled by a controller.

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