Transition layer coal slime concentration effect monitoring system

Abstract

The utility model belongs to the technical field of slime water treatment, and particularly relates to a transition layer slime concentration effect monitoring system. Comprising a water sample sampling rod and a support, an internal water channel with an inlet and outlet at the lower end is formed in the water sample sampling rod, a visual window capable of observing the internal water channel is arranged on the water sample sampling rod, and a gate valve capable of controlling on-off of the internal water channel is connected to the water sample sampling rod; the water sampling rod is held by a lifting device on the bracket and is vertical to the water surface to be inserted into coal slime water; according to the monitoring system, the problems of subjectivity and uncertainty of manual operation when field operators of a traditional coal preparation plant observe the thickness and the turbidity degree of a transition layer of a concentration tank with naked eyes through a probe rod and judge the production and operation state of coal slime flocculation and sedimentation are solved, and the danger coefficient that workers stay on the edge of a concentrator to fall into water is avoided; meanwhile, the monitoring system is simple to operate, and the monitoring result is visual and visible.

Description

Technical Field

[0001] This utility model belongs to the field of coal slime water treatment technology, specifically relating to a monitoring system for the thickening effect of transition layer coal slime. Background Technology

[0002] Accurately identifying the flocculation effect of coal slurry in thickeners is crucial for guiding flocculation dosing, reducing reagent usage, optimizing the production process, and improving coal slurry treatment efficiency. The flocculation and sedimentation of coal slurry involves the addition of flocculants, equipment condition, operator skill level, and other external factors. The complexity and interrelationship of these factors make the sedimentation process complex, uncertain, and difficult to make transparent, thus identifying the flocculation effect of coal slurry in thickeners has long been a "black box problem." Conventional coal slurry thickeners have a diameter of 30–45 m and a depth of 3–5 m. The sedimentation and concentration process of coal slurry in the thickener can typically be divided into four zones from top to bottom, as shown in the attached diagram. Figure 1 As shown, area A is the clarification zone, area B is the free settling zone, area C is the transition layer, and area D is the compression zone. Currently, operators at coal preparation plants typically use a crude method to estimate the settling effect in coal slurry thickeners. This involves inserting a rough-surfaced probe obliquely into the coal slurry water and visually observing the distance of the coal slurry adhering to the probe after it is removed from the water to roughly estimate the flocculation state in the thickener. However, this method results in the sludge residue on the probe surface being easily diluted in the water during extraction, and the oblique insertion introduces significant errors and relies heavily on manual experience. Utility Model Content

[0003] This invention aims to solve the problem of difficulty in evaluating the concentration effect of coal slurry water in the thickener during the coal slurry water treatment process in coal preparation plants.

[0004] This utility model provides the following technical solution: a transition layer coal slime thickening effect monitoring system, including a water sampling rod and a support. The water sampling rod has an internal water channel with an inlet and outlet at the lower end. The water sampling rod is provided with a viewing window that can observe the internal water channel. A gate valve that can control the opening and closing of the internal water channel is connected to the water sampling rod. The water sampling rod is held vertically by a lifting device on the support and inserted into the coal slime water.

[0005] Furthermore, the gate valve includes a valve body, which is connected to a water sampling rod. The channel inside the valve body is connected to the internal water channel of the water sampling rod. Two baffles are connected to the channel of the valve body through a centrally located rotating shaft bracket. A sealing gasket is provided on the inner wall of the channel of the valve body, with the baffles on top and the sealing gasket on the bottom. When the two baffles are closed, they fit against the sealing gasket and block the channel of the valve body. When the two baffles are open, the channel of the valve body is opened.

[0006] Furthermore, the baffles are connected to an upper traction wire and a lower traction wire. The upper traction wires on the two baffles cross upwards and pass through the upper traction wire through hole of the valve body into the lead wire guide groove of the valve body. The lower traction wires on the two baffles pass downwards and pass through the lower traction wire through hole of the valve body into the lead wire guide groove of the valve body. A wiring ring is arranged on the water sampling rod. The upper and lower traction wires pass out of the valve body and pass through the wiring ring to the upper part of the water sampling rod.

[0007] Furthermore, the lifting device includes two vertical rows of rollers, and the water sampling rod is clamped between the two rows of rollers. The two rows of rollers include a driving roller and a driven roller. The driving roller is connected to a torque input mechanism, and the torque input mechanism drives the driving roller to rotate, thereby causing the water sampling rod to move up and down.

[0008] Furthermore, the torque input mechanism includes a motor, a driving pulley, and a driven pulley. The driving pulley is mounted on the motor shaft, and the driven pulley is coaxially connected to the driving pulley. The driving pulley and the driven pulley are connected by a belt.

[0009] Furthermore, two rows of rollers are respectively mounted on a connecting frame that can move in a direction perpendicular to the water sample sampling rod, and a spring connects the connecting frame to the base of the connecting frame.

[0010] Furthermore, the water sampling rod has scale lines within the line of sight of the observation window, and the scale lines are parallel to the length of the water sampling rod.

[0011] Furthermore, the water sampling rod is a highly transparent polycarbonate plastic round tube.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This utility model provides a monitoring system for the thickening effect of transition layer coal slime, which avoids the subjectivity and uncertainty of traditional on-site operation in coal preparation plants where operators visually observe the thickness and turbidity of the transition layer in the thickener using probes to judge the flocculation and sedimentation production status. It also avoids the risk of workers falling into the water while lingering at the edge of the thickener. At the same time, the monitoring system is simple to operate, the monitoring results are intuitive and visible, it has standardized assembly, strong practicality, low cost, and is easy to promote. It also meets the requirements of accuracy, efficiency, and safety, and has broad application prospects in the field of coal slime water treatment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the installation of the transition layer coal slime thickening effect monitoring system;

[0015] Figure 2 A schematic diagram of the water sampler and gate valve;

[0016] Figure 3 This is a schematic diagram of a gate valve;

[0017] Figure 4 This is a schematic diagram of the opening and closing of a gate valve;

[0018] Figure 5 This is a schematic diagram of the lifting device.

[0019] In the diagram: 1-Water sample sampling rod; 2-Bracket; 3-Gate valve; 3.1-Valve body; 3.2-Baffle; 3.3-Sealing gasket; 3.4-Upper traction line; 3.5-Lower traction line; 3.6-Upper traction line through hole; 3.7-Lower traction line through hole; 3.8-Spindle bracket; 4-Lifting device; 4.1-Driving roller; 4.2-Driven roller; 4.3-Driving pulley; 4.4-Driven pulley; 4.5-Connecting frame; 4.6-Spring; 4.7-Belt; 4.8-Motor; 5-High-gloss reflective 5E-type scale marking strip. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] like Figure 1 As shown: A monitoring system for the thickening effect of coal slime in a transition layer includes a water sampling rod 1 and a support 2. The water sampling rod 1 has an internal water channel with an inlet and outlet at the lower end. The water sampling rod 1 is provided with a viewing window for observing the internal water channel. The water sampling rod 1 has a scale line within the line of sight of the viewing window, and the scale line is parallel to the length of the water sampling rod 1. The water sampling rod 1 is connected to a gate valve 3 for controlling the opening and closing of the internal water channel. The water sampling rod 1 is held vertically by a lifting device 4 on the support 2 and inserted into the coal slime water.

[0022] The support 2 carries the lifting device 4 to carry the water sample sampling rod 1 for sampling. This ensures that the lifting device 4 is kept at a sufficient distance from the edge of the thickener overflow tank to maintain stable operation, ensuring that the water sample sampling rod 1 is used for vertical sampling and sampling accuracy, while reducing the risk of personnel staying at the edge of the thickener's deep water pool.

[0023] like Figure 2As shown: Specifically, the water sampling rod 1 is a highly transparent polycarbonate plastic round tube, allowing direct visual observation of the turbidity of the coal slurry water inside the tube. A single water sampling rod 1 is 1000mm long, with an outer diameter of 40mm, a wall thickness of 2mm, and an inner diameter of 36mm. Both ends of the water sampling rod 1 are threaded, allowing two rods to be screwed together. The rods can be extended to different sampling depths. A highly reflective 5E-style scale marking strip 5 is affixed to the tube wall of the water sampling rod 1 to ensure accurate nighttime identification.

[0024] like Figure 3 As shown: Gate valve 3 includes valve body 3.1, which is connected to water sampling rod 1. The channel inside valve body 3.1 is connected to the internal water channel of water sampling rod 1. A threaded interface is provided on valve body 3.1, and valve body 3.1 is threadedly connected to the lower end of water sampling rod 1. Two baffles 3.2 are connected to the channel of valve body 3.1 through a centrally located rotating shaft bracket 3.8. A sealing gasket 3.3 is provided on the inner wall of the channel of valve body 3.1, with baffles 3.2 on top and sealing gasket 3.3 on the bottom. When the two baffles 3.2 are closed, they fit against the sealing gasket 3.3 to block the channel of valve body 3.1. When the two baffles 3.2 are open, the channel of valve body 3.1 is open.

[0025] like Figure 4 As shown: The baffle 3.2 is connected to an upper traction line 3.4 and a lower traction line 3.5. The upper traction lines 3.4 on the two baffles 3.2 cross upwards and pass through the upper traction line through hole 3.6 of the valve body 3.1 into the lead wire guide groove of the valve body 3.1. The lower traction lines 3.5 on the two baffles 3.2 pass downwards and pass through the lower traction line through hole 3.7 of the valve body 3.1 into the lead wire guide groove of the valve body 3.1. A wiring ring is arranged on the water sample sampling rod 1. The upper traction lines 3.4 and lower traction lines 3.5 pass out of the valve body 3.1 and pass through the wiring ring to the upper part of the water sample sampling rod 1. The upper traction line 3.4 and the lower traction line 3.5 are made of strong, wear-resistant, high-strength, non-elastic crystal traction lines. Under the action of the upper traction line 3.4, the two baffles 3.2 can be opened. Under the action of the lower traction line 3.5, the two baffles 3.2 can be closed on the sealing gasket 3.3 to achieve internal sealing of the valve body 3.1.

[0026] like Figure 5 As shown: The lifting device 4 includes two vertical rows of rollers, each row having three rollers. The circumference of the rollers is provided with rubber grooves that fit the outer wall of the water sampling rod 1. The water sampling rod 1 is clamped between the two rows of rollers. The two rows of rollers include a driving roller 4.1 and a driven roller 4.2. The driving roller 4.1 is connected to a torque input mechanism, which drives the driving roller 4.1 to rotate, thereby moving the water sampling rod 1 up and down.

[0027] The torque input mechanism includes a motor 4.8, a driving pulley 4.3, and a driven pulley 4.4. The driving pulley 4.3 is mounted on the shaft of the motor 4.8, and the driven pulley 4.4 is coaxially connected to the driving roller 4.1. The driving pulley 4.3 and the driven pulley 4.4 are connected by a belt 4.7. Driven by the motor 4.8, the driving pulley 4.3, and the driven pulley 4.4, the driving roller 4.1 controls the rise and fall of the water sample sampling rod 1 at a certain rotational speed.

[0028] Two rows of rollers are respectively installed on the connecting frame 4.5, which can move in a direction perpendicular to the water sample sampling rod 1. A spring 4.6 is connected between the connecting frame 4.5 and the base of the connecting frame 4.5. The spring 4.6 squeezes the roller assembly to clamp the water sample sampling rod 1 and raise and lower it.

[0029] The method of using a transition layer coal slime thickening effect monitoring system is as follows:

[0030] S1: The bracket 2 is installed on the wall of the thickening tank so that the water sampling rod 1 is suspended vertically above the water surface of the thickening tank.

[0031] S2: Retract the upper traction line 3.4 and the lower traction line 3.5 to keep the gate valve 3 open, and the lifting device 4 slowly immerses the water sampling rod 1 into the coal slurry water, with the gate valve 3 below the sampling water level;

[0032] S3: Retract the upper traction line 3.4 and the lower traction line 3.5 to close the gate valve 3, wait a short time for the coal slurry water to stabilize in the water sampling rod 1, and then slowly lift the water sampling rod 1 out of the water surface using the lifting device 4.

[0033] S4: Observe the coal slurry water in the water sampling rod 1 through the viewing window and find the dividing line from clear to turbid; use the collection scale line to determine the height of the dividing line, and thus determine the thickness of the coal slurry water transition layer in the thickening tank.

[0034] S5: Retract the upper traction line 3.4 and the lower traction line 3.5 to open the gate valve 3 and drain the coal slurry water in the water sampling rod 1; clean the inside and outside of the water sampling rod 1 after use, and prepare it for the next use; if necessary, perform necessary maintenance on the water sampling rod 1 and the gate valve 3.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transition layer slurry concentration effect monitoring system, characterized in that: The utility model provides a water sample sampling rod and support, the water sample sampling rod (1) is constructed with the internal water channel of the lower end of the entrance and exit, the water sample sampling rod (1) is provided with the visual window of being able to observe internal water channel, the water sample sampling rod (1) is connected with the gate valve (3) of being able to control internal water channel on-off, the water sample sampling rod (1) is held by the lifting device (4) on the support (2) and is inserted into the coal slurry water vertically to the water surface.

2. The transition layer coal slime concentration effect monitoring system according to claim 1, characterized in that: The gate valve (3) includes a valve body (3.1), the valve body (3.1) is connected with the water sample sampling rod (1), and a passage in the valve body (3.1) is communicated with the internal water channel of the water sample sampling rod (1); two flaps (3.2) are connected in the passage of the valve body (3.1) through a centrally located rotating shaft support (3.8); a ring of sealing washers (3.3) is provided on the inner wall of the passage of the valve body (3.1); the flaps (3.2) are located above the sealing washers (3.3); when the two flaps (3.2) are closed, they abut against the sealing washers (3.3) to block the passage of the valve body (3.1); when the two flaps (3.2) are opened, the passage of the valve body (3.1) is open.

3. The transition layer coal slime concentration effect monitoring system according to claim 2, characterized in that: The flaps (3.2) are connected with upper and lower traction lines (3.4) and (3.5); the upper traction lines (3.4) of the two flaps (3.2) cross upwards and then pass through the upper traction line passing holes (3.6) of the valve body (3.1) into the lead line guide slots of the valve body (3.1); the lower traction lines (3.5) of the two flaps (3.2) pass downwards through the lower traction line passing holes (3.7) of the valve body (3.1) into the lead line guide slots of the valve body (3.1); a wiring ring is arranged on the water sample sampling rod (1); the upper and lower traction lines (3.4) and (3.5) pass through the wiring ring after passing out of the valve body (3.1) and are led to the upper part of the water sample sampling rod (1).

4. The transition layer coal slime concentration effect monitoring system according to claim 1 or 3, characterized in that: The lifting device (4) includes two vertical rows of rollers, the water sample sampling rod (1) is clamped between the two rows of rollers, the two rows of rollers include driving rollers (4.1) and driven rollers (4.2), the driving rollers (4.1) are connected with a torque input mechanism, the torque input mechanism drives the driving rollers (4.1) to rotate to move the water sample sampling rod (1) up and down.

5. The transition layer coal slime concentration effect monitoring system according to claim 4, characterized in that: The torque input mechanism includes a motor (4.8), a driving pulley (4.3) and a driven pulley (4.4), the driving pulley (4.3) is installed on the rotating shaft of the motor (4.8), the driven pulley (4.4) is coaxially connected with the driving rollers (4.1), and the driving pulley (4.3) and the driven pulley (4.4) are connected through a belt (4.7).

6. The transition layer coal slime concentration effect monitoring system according to claim 5, characterized in that: The two rows of rollers are respectively installed on connecting frames (4.5) which can move in the direction perpendicular to the water sample sampling rod (1), and springs (4.6) are connected between the connecting frames (4.5) and the seat bodies of the connecting frames (4.5).

7. The transition layer coal slime concentration effect monitoring system according to claim 3, characterized in that: A scale line is arranged on the water sample sampling rod (1) within the line of sight of the visual window, and the scale line is parallel to the length of the water sample sampling rod (1).

8. The transition layer coal slime concentration effect monitoring system according to claim 1, characterized in that: The water sample sampling rod (1) is a high-transparency polycarbonate plastic round pipe.

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