A secondary flotation device for clean coal post-filtered water

Abstract

This utility model discloses a secondary flotation device for the filtrate water after flotation of clean coal, including a frame and a main pipe. Branch pipes are installed on the main pipe, with both their inlet and outlet ends connected to the main pipe. A three-way connector is installed on the branch pipe. A turntable is rotatably mounted on the frame, and the turntable has several receiving slots for accommodating filter screens. A funnel is mounted on the frame, and a weighing scale is installed below the outlet end of the three-way connector on the funnel. An L-shaped pusher plate is installed at the bottom of the turntable. By having the filter screens on the turntable pass through the outlet end of the three-way connector in turn, the filtrate water can be filtered by different screens. After filtration, it can be weighed by the weighing scale. By monitoring the weight of different screens and filter residue, the need for secondary filtration can be quickly determined, avoiding resource waste caused by slow detection speed. The three-way connector allows the filtrate water in the main pipe to be intermittently discharged for detection, preventing excessive discharge and waste.

Description

Technical Field

[0001] This utility model relates to the technical field of secondary flotation devices for filtrate water after flotation of clean coal, and in particular to a secondary flotation device for filtrate water after flotation of clean coal. Background Technology

[0002] For example, CN222197350U describes a secondary flotation device for the filtrate water after flotation of clean coal in a coal preparation plant. It determines whether the filtrate water needs secondary flotation by detecting the clean coal content in the filtrate water using a filtrate detector. However, it only states that the clean coal content can be detected by filtration or drying, without specifying the exact detection structure. If the detection time is too long, some filtrate water will be lost, resulting in waste of clean coal. Therefore, it is necessary to set up a secondary flotation device for the filtrate water after flotation of clean coal that can quickly detect the clean coal content. Utility Model Content

[0003] Therefore, it is necessary to provide a secondary flotation device for the filtrate water after flotation of clean coal, addressing the technical problem of long detection time for the clean coal content in the filtrate water.

[0004] To achieve the above objectives, this utility model provides a secondary flotation device for the filtrate water after flotation of clean coal, including a frame and a main pipe. A branch pipe is installed on the main pipe, and the input and output ends of the branch pipe are both connected to the main pipe. A tee pipe is installed on the branch pipe. A turntable is rotatably installed on the frame, and the turntable is provided with several receiving grooves that can accommodate filter screens. A funnel is installed on the frame, and a weighing scale is installed below the output end of the tee pipe of the funnel. An L-shaped push plate is installed at the bottom of the turntable.

[0005] Preferably, a fixed cylinder is installed on the frame, and several filter screens are stacked inside the fixed cylinder.

[0006] Preferably, an arc-shaped plate is installed on the frame, the arc-shaped plate is located below several receiving slots from the fixed cylinder to the tee pipe, and the arc-shaped plate abuts against the turntable.

[0007] Preferably, the frame is provided with a ramp. Preferably, a rotary drive device is mounted on the frame, and the output end of the rotary drive device is connected to the turntable drive.

[0008] Preferably, a collection funnel is installed on the frame, the collection funnel is located directly below the three-way pipe, and the arc-shaped plate is provided with several leakage holes at the three-way pipe.

[0009] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. By having several filter screens on the turntable pass through the output end of the three-way pipe in turn, the filtrate water can be filtered by different filter screens. After filtration, it can be weighed by a weighing scale. By monitoring the weight of different filter screens and filter residue, it is possible to quickly determine whether secondary filtration is needed, thus avoiding resource waste caused by slow detection speed. 2. By setting up the three-way tube, the filtrate water in the main tube can be discharged intermittently for testing, avoiding excessive discharge and waste. Attached Figure Description

[0010] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a front sectional view of an embodiment of the present invention; In the diagram, 1 is the frame; 2 is the main pipe; 3 is the branch pipe; 4 is the tee pipe; 5 is the turntable; 6 is the filter screen; 7 is the receiving tank; 9 is the weighing scale; 10 is the L-shaped push plate; 11 is the fixed cylinder; 12 is the arc plate; 13 is the ramp; 14 is the rotary drive device; and 15 is the collection funnel. Detailed Implementation

[0011] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0012] Please see Figures 1 to 2 This application provides a secondary flotation device for the filtrate water after flotation of clean coal, including a frame 1 and a main pipe 2. A branch pipe 3 is fixedly installed on the main pipe 2. The input and output ends of the branch pipe 3 are both connected to the main pipe 2. A three-way pipe 4 is fixedly installed on the branch pipe 3. The three-way pipe 4 includes a control valve. A turntable 5 is rotatably installed on the frame 1. The turntable 5 has several receiving slots 7 that can accommodate filter screens 6. A weighing scale 9 is fixedly installed on the frame 1. The weighing scale 9 can be a high-precision weighing scale that is connected to an external signal processor. An L-shaped push plate 10 for pushing the filter screens 6 is fixedly installed at the bottom of the turntable 5.

[0013] In this embodiment, the filtrate water flows through the main pipe 2, and a portion can be diverted to the branch pipe 3. During testing, the three-way pipe 4, which is connected to the branch pipe 3, can discharge a portion of the filtrate water from the branch pipe 3. Simultaneously, the turntable 5 can be controlled to rotate at a fixed point, so that the filter screen 6 in the receiving groove 7 on the turntable 5 can rotate exactly below the output end of the three-way pipe 4. Thus, when the filtrate water is discharged from the three-way pipe 4, the filter screen 6 can filter this portion of the filtrate water. The three-way pipe 4 can be opened for 1-2 seconds, after which it is closed, allowing the filtrate water in the branch pipe 3 to continue flowing. At the same time, the turntable 5 rotates, and when the filter screen 6 and When the filter screen is transferred to the top of the weighing scale 9, it can automatically fall down for weighing, so that the detection signal can be transmitted and the flow direction of the filtrate water in the main pipe 2 can be controlled. When the turntable 5 rotates, the next filter screen 6 is also driven to the bottom of the output end of the three-way pipe 4 for filtration. Thus, the entire detection process can be controlled in a short time. Before the next filter screen 6 passes above the weighing scale 9, the L-shaped push plate 10 can push the previous filter screen 6 down, so that the detection can be carried out quickly. A waterproof membrane can be added to the outside of the weighing scale 9 to achieve waterproofing. The function of the branch pipe 3 is to slow down the flow rate to a certain extent by diverting the flow, so as to avoid liquid splashing during filtration and causing inaccurate detection.

[0014] In some embodiments, to facilitate the falling of the filter screen 6 into the receiving groove 7, a fixed cylinder 11 is slidably engaged on the frame 1, and several filter screens 6 are stacked inside the fixed cylinder 11. The fixed cylinder 11 is slidably engaged on the frame 1, thereby facilitating replacement. The bottom output end of the fixed cylinder 11 is located above the turntable 5 and is fitted with it with a clearance, so that the filter screen 6 inside the fixed cylinder 11 can fall into the receiving groove 7 under the action of gravity.

[0015] In some embodiments, to prevent the filter screen 6 from falling out of the receiving groove 7, an arc-shaped plate 12 is fixedly installed on the frame 1. The arc-shaped plate 12 is located below several receiving grooves 7 from the fixed cylinder 11 to the three-way pipe 4, and the arc-shaped plate 12 abuts against the turntable 5. Thus, the filter screen 6 is limited by the arc-shaped plate 12 when it falls into the receiving groove 7, and can only fall freely by gravity after passing through the three-way pipe 4 and just before falling onto the testing scale 9.

[0016] In some embodiments, a ramp 13 is provided on the frame 1 to facilitate the collection of the tested filter screen 6. The filter screen 6 can then roll down the ramp 13 into a collection box.

[0017] In some embodiments, to facilitate the fixed-point rotation of the turntable 5, a rotary drive device 14 is fixedly mounted on the frame 1. The rotary drive device 14 can be a stepper motor that is connected to an external signal processor, and the output end of the rotary drive device 14 is connected to the turntable 5 for transmission. Thus, the rotary drive device 14 can drive the turntable 5 to rotate at a fixed point; at the same time, the rotary drive device 14 can be equipped with a waterproof baffle or other mechanism for waterproofing.

[0018] In some embodiments, to facilitate the collection of filtrate water filtered by filter screen 6 during testing, a collection funnel 15 is fixedly installed on the frame 1. The collection funnel 15 is located directly below the three-way pipe 4, and the arc-shaped plate 12 has several leakage holes at the three-way pipe 4. Thus, the filtrate water can flow through the leakage holes on the arc-shaped plate 12 into the collection funnel 15 for collection.

[0019] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0020] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0021] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A secondary flotation device for the filtrate water after flotation of clean coal, comprising a frame (1) and a main flow pipe (2), characterized in that, A branch pipe (3) is installed on the main pipe (2). The input and output ends of the branch pipe (3) are connected to the main pipe (2). A three-way pipe (4) is installed on the branch pipe (3). A turntable (5) is rotatably installed on the frame (1). The turntable (5) is provided with several receiving slots (7) that can accommodate the filter screen (6). A testing scale (9) is installed on the frame (1). An L-shaped push plate (10) for pushing the filter screen (6) is installed at the bottom of the turntable (5).

2. The secondary flotation device for the filtrate water after flotation of clean coal according to claim 1, characterized in that, A fixed cylinder (11) is installed on the frame (1), and several filter screens (6) are stacked inside the fixed cylinder (11).

3. The secondary flotation apparatus for the filtrate water after flotation of clean coal according to claim 2, characterized in that, An arc plate (12) is installed on the frame (1). The arc plate (12) is located below several receiving slots (7) from the fixed cylinder (11) to the three-way pipe (4). The arc plate (12) abuts against the turntable (5).

4. The secondary flotation device for the filtrate water after flotation of clean coal according to claim 1, characterized in that, The frame (1) is provided with a ramp (13).

5. The secondary flotation apparatus for the filtrate water after flotation of clean coal according to claim 1, characterized in that, A rotary drive device (14) is installed on the frame (1), and the output end of the rotary drive device (14) is connected to the turntable (5) for transmission.

6. The secondary flotation apparatus for the filtrate water after flotation of clean coal according to claim 1, characterized in that, A collection funnel (15) is installed on the frame (1). The collection funnel (15) is located directly below the three-way pipe (4). The arc plate (12) is provided with several leakage holes at the three-way pipe (4).

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