Foam-containing slurry liquid level measuring device and using method thereof

Abstract

The invention discloses a foam-containing slurry liquid level measuring device and a using method thereof, and relates to the technical field of liquid level measurement, the foam-containing slurry liquid level measuring device specifically comprises a range finder body and a liquid storage tank, a defoaming cylinder located below the range finder body is fixedly installed in the liquid storage tank, and a counterweight buoy is movably installed in the defoaming cylinder; and a lower mounting plate positioned above the liquid storage tank is movably mounted at the lower end of the range finder body. Through cooperation of the range finder body, the liquid storage tank, the defoaming cylinder, the counterweight buoy, a lower mounting plate, an upper mounting plate and a spring clamping piece, the counterweight buoy moves in the defoaming cylinder, so that the defoaming cylinder eliminates foam in foam-containing slurry, signals of the range finder body are in contact with the counterweight buoy, and the foam in the foam-containing slurry is eliminated. Meanwhile, the elastic clamping piece is adopted to adjust the distance between the upper mounting plate and the lower mounting plate, so that the upper mounting plate and the lower mounting plate can be suitable for mounting range finder bodies with different sizes.

Description

Technical Field

[0001] This invention relates to the field of liquid level measurement, specifically to a liquid level measuring device for foamed slurry and its usage method. Background Technology

[0002] Liquid level measurement is a frequently used detection method in industrial production. Liquid level value is a commonly used parameter in industrial control processes. In particular, slurry in industrial production is usually measured using a rangefinder.

[0003] However, during industrial production, a certain amount of foam will be generated in the slurry. When the foam floats on the slurry, the signal emitted by the rangefinder will not only be absorbed by the foam, but will also scatter the measurement signal, resulting in signal loss or distortion, thus affecting the accuracy of the liquid level measurement data of the foam-containing slurry. Summary of the Invention

[0004] This application proposes a liquid level measuring device for foamed slurry and its usage method, which has the following advantages: it enhances the stability of laser rangefinders in actual use, is applicable to laser rangefinders of different sizes, and facilitates the assembly and disassembly of laser rangefinders, thus solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a liquid level measuring device for foamed slurry, comprising a rangefinder body and a storage tank, wherein a defoaming cylinder is fixedly installed inside the storage tank below the rangefinder body, and a counterweight float is movably installed inside the defoaming cylinder; a lower mounting plate is movably installed at the lower end of the rangefinder body above the storage tank, a vertical rod is fixedly connected to the back of the lower mounting plate, a sleeve rod is movably sleeved at the upper end of the vertical rod, a spring clip for connecting the sleeve rod is provided at the upper end of the vertical rod, an upper mounting plate is fixedly installed on the front of the sleeve rod above the rangefinder body, clamping plates located outside the rangefinder body are respectively provided on the left and right sides inside the upper and lower mounting plates, and an adjustment component is connected to the front of the clamping plates; and a shell located outside the adjustment component is fixedly installed on the front of both the upper and lower mounting plates.

[0006] Preferably, a viewing window is fixedly installed on the front of the liquid storage tank, a drain pipe is fixedly installed on the lower right side of the liquid storage tank, a sealing plug is movably connected inside the drain pipe, an anti-loss rope is fixedly connected to the upper end of the sealing plug, and the end of the anti-loss rope away from the sealing plug is fixedly connected to the outer wall of the liquid storage tank. A support rod is fixedly installed on the upper back of the liquid storage tank, a fixing block located below the vertical rod is fixedly connected to the upper end of the support rod, and a fastening bolt is threadedly connected to the inner wall of the fixing block.

[0007] Preferably, a connecting plate is fixedly installed at the lower end of the vertical rod, and a locking block is fixedly connected to the end of the connecting plate away from the vertical rod. The inner wall of the locking block is movably engaged with the outer wall of the fixing block, and the fixing block is connected to the locking block by fastening bolts.

[0008] Preferably, the adjusting assembly includes a ball nut and a ball screw, the inner wall of the ball nut is threadedly connected to the outer wall of the ball screw, a crossbar is fixedly installed on the back of the ball nut, and the end of the crossbar away from the ball nut is fixedly connected to the front of the clamping plate.

[0009] Preferably, the outer walls of the ball screws on the left and right sides are provided with threads in opposite directions, the inner wall of the ball screw is fixedly sleeved with a rotating rod, the outer wall of the rotating rod is provided with a limiting component located on the left side of the adjusting component, the left end of the rotating rod is fixedly installed with a knob located on the left side of the housing, and the outer walls of the left and right ends of the rotating rod are respectively movably sleeved with the inner walls of the left and right sides of the housing.

[0010] Preferably, the limiting component includes a limiting gear and a triangular locking block, the triangular locking block being engaged between two adjacent teeth on the limiting gear, and the inner wall of the limiting gear being fixedly sleeved with the outer wall of the rotating rod.

[0011] Preferably, a telescopic rod is fixedly installed at the upper end of the triangular block, located above the limiting gear. A cylinder located above the triangular block is movably sleeved on the outer wall of the telescopic rod, and the right side of the cylinder is fixedly connected to the left side of the outer shell. A movable component for connecting the cylinder is fixedly installed at the upper end of the telescopic rod.

[0012] Preferably, the movable component includes a disc and a spring, the lower end of the disc is fixedly connected to the upper end of the telescopic rod, the upper end of the disc is fixedly connected to the lower end of the spring, and the upper end of the spring is fixedly connected to the inner wall of the cylinder.

[0013] Preferably, a first groove is provided on the front and rear sides of the cylinder, and a second groove is provided on the front and rear sides of the cylinder below the first groove. A rod is movably inserted into the cylinder through the second groove or the first groove. A positioning rod is fixedly installed on the outer end of the rod, and the end of the positioning rod away from the rod is fixedly connected to a triangular block.

[0014] A method for using a liquid level measuring device containing foamed slurry, applicable to the aforementioned liquid level measuring device containing foamed slurry, includes the following operating steps: S1. Installation of the rangefinder body First, install the locking block on the fixing block. Then, use the fastening bolt to rotate and pass through the locking block and the fixing block to fix the vertical rod on the support rod. At this time, the lower mounting plate is fixed above the liquid storage tank. Then, place the rangefinder body on the lower mounting plate and install the upper mounting plate on the upper end of the rangefinder body so that the sleeve is sleeved on the vertical rod. Press the spring clip to move inward into the vertical rod. As the sleeve moves downward outside the vertical rod, the spring clip's rebound allows it to position the vertical rod and the sleeve. The distance between the upper mounting plate and the lower mounting plate can then be adjusted according to the height of the rangefinder body. S2. Reinforcement of the rangefinder body When the triangular locking block engages with the limiting gear, the insert rod is inserted into the second groove. After removing the insert rod from the second groove, it is inserted into the first groove, causing the triangular locking block to separate from the limiting gear. By rotating the knob, the rotating rod rotates, which in turn drives the ball screws on both sides to rotate simultaneously. Since the outer walls of the ball screws on both sides are provided with threads in opposite directions, and the ball screws and ball nuts are connected by a threaded connection, the rotation of the rotating rod drives the ball nuts on both sides to move towards the rangefinder body simultaneously through the connection of the ball screws. The movement of the ball nuts on both sides drives the clamping plates on both sides to move towards the rangefinder body through the connection of the crossbar until the inner side of the clamping plate contacts the outer wall of the rangefinder body, so that the clamping plate is used to limit the rangefinder body in the lower mounting plate and the upper mounting plate. S3. Operation of the rangefinder body Because the counterweight float is placed inside the defoaming cylinder, which is used to block foam in the slurry, the liquid after the foam is blocked enters the interior of the defoaming cylinder. The counterweight float floats on the liquid. The laser emitted by the rangefinder body mounted on the lower mounting plate passes through the opening at the top of the defoaming cylinder and shines on the counterweight float. The liquid level measurement result is then displayed on the high-definition color screen built into the rangefinder body.

[0015] The present invention has the following beneficial effects: 1. This invention utilizes the cooperation between the rangefinder body, liquid storage tank, defoaming cylinder, counterweight float, lower mounting plate, upper mounting plate, and spring clips. The counterweight float moves within the defoaming cylinder, initially eliminating and filtering the foam entering the cylinder. The counterweight float further eliminates foam in the foam-containing slurry within the defoaming cylinder, ensuring unobstructed contact between the rangefinder body signal and the counterweight float, achieving accurate measurement of the foam-containing slurry level. Simultaneously, the elastic clips adjust the distance between the upper and lower mounting plates, allowing them to be used with rangefinder bodies of different sizes.

[0016] 2. This invention utilizes the cooperation between the rangefinder body, lower mounting plate, upper mounting plate, adjustment component, and clamping plate. By using the clamping plate, the rangefinder body is limited within the lower and upper mounting plates. The adjustment component is used to adjust the position of the clamping plate, thereby enhancing the stability of the rangefinder body within the lower and upper mounting plates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Rear view diagram; Figure 3 This is a top view of the liquid storage tank in the structure of the present invention; Figure 4 This is a bottom view of the lower mounting plate in the structure of the present invention; Figure 5 This is a schematic diagram of the installation arrangement of the clamping plates in the structure of the present invention; Figure 6 This is a schematic diagram of the structure of the adjustment component in this invention; Figure 7 This is a schematic diagram of the structure of the limiting component in this invention; Figure 8 This is a schematic diagram of the internal structure of the cylinder in the structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the spring clip in the structure of the present invention.

[0018] In the diagram: 1. Rangefinder body; 2. Liquid tank; 3. Defoaming cylinder; 4. Counterweight float; 5. Lower mounting plate; 6. Vertical rod; 7. Sleeve rod; 8. Spring clip; 9. Upper mounting plate; 10. Clamping plate; 11. Adjustment assembly; 111. Ball nut; 112. Ball screw; 12. Housing; 13. Viewing window; 14. Drain pipe; 15. Sealing plug; 16. Anti-loss rope; 17. Support rod; 18. Fixing block; 19. Fastening bolt; 20. Connecting plate; 21. Clamping block; 22. Horizontal rod; 23. Rotating rod; 24. Limiting assembly; 241. Limiting gear; 242. Triangular clamping block; 25. Knob; 26. Telescopic rod; 27. Cylinder; 28. Movable assembly; 281. Disc; 282. Spring; 29. ​​First groove; 30. Second groove; 31. Insert rod; 32. Positioning rod. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to preferred embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 5 A liquid level measuring device for foam-containing slurry includes a rangefinder body 1 and a storage tank 2. An antifoaming cylinder 3 is fixedly installed inside the storage tank 2, located below the rangefinder body 1. The outer wall of the antifoaming cylinder 3 has evenly distributed antifoaming holes for defoaming the foam-containing slurry. A counterweight float 4 is movably installed inside the antifoaming cylinder 3. The counterweight float 4 rises and falls with the rise and fall of the slurry level within the antifoaming cylinder 3. This movement of the counterweight float 4 within the antifoaming cylinder 3 further eliminates foam in the foam-containing slurry, allowing unobstructed contact between the signal from the rangefinder body 1 and the counterweight float 4, achieving accurate measurement of the foam-containing slurry level. A lower mounting plate 5 is movably installed at the lower end of the rangefinder body 1, located above the storage tank 2. A vertical rod 6 is fixedly connected to the back of the lower mounting plate 5. The upper end of the vertical rod 6 is movably... A sleeve rod 7 is connected to the upper mounting plate 9, which is fixedly mounted on the front of the sleeve rod 7 above the rangefinder body 1. A spring clip 8 is provided at the upper end of the vertical rod 6 to connect the sleeve rod 7. By changing the connection position between the spring clip 8 and the sleeve rod 7, the vertical rod 6 can move inside the sleeve rod 7, thereby adjusting the distance between the lower mounting plate 5 and the upper mounting plate 9. This allows the lower mounting plate 5 and the upper mounting plate 9 to be used with rangefinder bodies 1 of different sizes. Clamping plates 10 are respectively provided on the left and right sides inside the upper mounting plate 9 and the lower mounting plate 5, which are located outside the rangefinder body 1. The clamping plates 10 restrict the position of the rangefinder body 1 inside the lower mounting plate 5 and the upper mounting plate 9, thereby also reinforcing the stability of the rangefinder body 1 inside the lower mounting plate 5 and the upper mounting plate 9. An adjustment component 11 is connected to the front of the clamping plate 10. The adjustment assembly 11 can adjust the position of the clamping plate 10 within the lower mounting plate 5 and the upper mounting plate 9. The front of both the upper mounting plate 9 and the lower mounting plate 5 is fixedly mounted with a housing 12 located outside the adjustment assembly 11.

[0021] A viewing window 13 is fixedly installed on the front of the liquid storage tank 2. The viewing window 13 allows the staff to observe the position of the counterweight float 4 through the defoaming hole of the defoaming cylinder 3 from the outside of the liquid storage tank 2. A drain pipe 14 is fixedly installed on the lower right side of the liquid storage tank 2. A sealing plug 15 is movably connected inside the drain pipe 14. A rubber sealing ring is installed between the sealing plug 15 and the drain pipe 14. An anti-loss rope 16 is fixedly connected to the upper end of the sealing plug 15, and the end of the anti-loss rope 16 away from the sealing plug 15 is fixedly connected to the outer wall of the liquid storage tank 2. A support rod 17 is fixedly installed on the upper back of the liquid storage tank 2. A fixing block 18 located below the vertical rod 6 is fixedly connected to the upper end of the support rod 17. A fastening bolt 19 is threadedly connected to the inner wall of the fixing block 18.

[0022] like Figure 6 , Figure 7 and Figure 9 A connecting plate 20 is fixedly installed at the lower end of the vertical rod 6. A locking block 21 is fixedly connected to the end of the connecting plate 20 away from the vertical rod 6. The inner wall of the locking block 21 is movably locked with the outer wall of the fixing block 18. The fixing block 18 is connected to the locking block 21 by fastening bolts 19. The connection method between the fastening bolts 19 and the fixing block 18 or the locking block 21 facilitates the disassembly and assembly of the lower mounting plate 5.

[0023] The adjusting assembly 11 includes a ball nut 111 and a ball screw 112. The inner wall of the ball nut 111 is threadedly connected to the outer wall of the ball screw 112. The threaded connection allows the ball nut 111 to move horizontally along the axial direction of the ball screw 112 while the ball screw 112 rotates circumferentially, thereby adjusting the position of the clamping plate 10. A crossbar 22 is fixedly installed on the back of the ball nut 111, and the end of the crossbar 22 away from the ball nut 111 is fixedly connected to the front of the clamping plate 10.

[0024] The outer walls of the ball screws 112 on the left and right sides are provided with threads in opposite directions. The inner wall of the ball screw 112 is fixedly sleeved with a rotating rod 23. The outer wall of the rotating rod 23 is provided with a limiting component 24 located on the left side of the adjusting component 11. The limiting component 24 restricts the movement of the clamping plate 10 within the lower mounting plate 5 and the upper mounting plate 9, preventing the rotating rod 23 from being accidentally touched. The left end of the rotating rod 23 is fixedly installed with a knob 25 located on the left side of the outer casing 12. The outer walls of the left and right ends of the rotating rod 23 are respectively movably sleeved with the inner walls of the left and right sides of the outer casing 12.

[0025] The limiting component 24 includes a limiting gear 241 and a triangular locking block 242. When the limiting gear 241 and the triangular locking block 242 are engaged, the rotating rod 23 cannot rotate. When the limiting gear 241 and the triangular locking block 242 are separated, the rotating rod 23 can rotate. The triangular locking block 242 is engaged between two adjacent teeth on the limiting gear 241. The inner wall of the limiting gear 241 is fixedly sleeved with the outer wall of the rotating rod 23.

[0026] A telescopic rod 26 located above the limiting gear 241 is fixedly installed on the upper end of the triangular block 242. A cylinder 27 located above the triangular block 242 is movably sleeved on the outer wall of the telescopic rod 26. The right side of the cylinder 27 is fixedly connected to the left side of the outer shell 12. A movable component 28 for connecting the cylinder 27 is fixedly installed on the upper end of the telescopic rod 26.

[0027] like Figure 8 and Figure 4 The movable component 28 includes a disc 281 and a spring 282. The lower end of the disc 281 is fixedly connected to the upper end of the telescopic rod 26, the upper end of the disc 281 is fixedly connected to the lower end of the spring 282, and the upper end of the spring 282 is fixedly connected to the inner wall of the cylinder 27.

[0028] The cylinder 27 has a first groove 29 on its front and rear sides respectively, and a second groove 30 located below the first groove 29 on its front and rear sides respectively. The cylinder 27 is movably connected to a rod 31 through the second groove 30 or the first groove 29. When the rod 31 is inserted into the first groove 29, the limiting gear 241 and the triangular block 242 are separated. When the rod 31 is inserted into the second groove 30, the limiting gear 241 and the triangular block 242 are engaged. A positioning rod 32 is fixedly installed on the outer end of the rod 31, and the end of the positioning rod 32 away from the rod 31 is fixedly connected to the triangular block 242.

[0029] A method for using a liquid level measuring device containing foamed slurry, applicable to a liquid level measuring device containing foamed slurry, includes the following operating steps: S1. Installation of the rangefinder body 1 First, install the locking block 21 on the fixing block 18. Then, use the fastening bolt 19 to rotate and pass through the locking block 21 and the fixing block 18 to fix the vertical rod 6 on the support rod 17. At this time, the lower mounting plate 5 is fixed above the liquid storage tank 2. Then, place the rangefinder body 1 on the lower mounting plate 5 and install the upper mounting plate 9 on the upper end of the rangefinder body 1 so that the sleeve 7 is sleeved on the vertical rod 6. Press the spring clip 8 to move inward to the vertical rod 6. As the sleeve 7 moves downward outside the vertical rod 6, the spring clip 8 rebounds and positions the vertical rod 6 and the sleeve 7. The distance between the upper mounting plate 9 and the lower mounting plate 5 can be adjusted according to the height of the rangefinder body 1. S2, Reinforcement of the rangefinder body 1 When the triangular locking block 242 engages with the limiting gear 241, the insert rod 31 is inserted into the second groove 30. After removing the insert rod 31 from the second groove 30, it is inserted into the first groove 29, causing the triangular locking block 242 to separate from the limiting gear 241. By rotating the rotating rod 23 through the knob 25, the rotating rod 23 drives the ball screws 112 on both sides to rotate simultaneously. Since the outer walls of the ball screws 112 on both sides are provided with threads in opposite directions, and the ball screws 112 and the balls... The nuts 111 are connected by a threaded connection, so that the rotation of the rotating rod 23 drives the ball nuts 111 on both sides to move towards the rangefinder body 1 simultaneously through the connection of the ball screw 112. The movement of the ball nuts 111 on both sides drives the clamping plates 10 on both sides to move towards the rangefinder body 1 through the connection of the crossbar 22 until the inner side of the clamping plate 10 contacts the outer wall of the rangefinder body 1, so that the clamping plate 10 is used to limit the rangefinder body 1 within the lower mounting plate 5 and the upper mounting plate 9. S3, Operation of the rangefinder body 1 Since the counterweight float 4 is placed inside the defoaming cylinder 3, the defoaming cylinder 3 is used to block the foam in the slurry. After the foam is blocked, the liquid enters the interior of the defoaming cylinder 3, and the counterweight float 4 floats on the liquid. The laser emitted by the rangefinder body 1 mounted on the lower mounting plate 5 passes through the opening at the top of the defoaming cylinder 3 and irradiates the counterweight float 4. The liquid level measurement result is then displayed on the high-definition color screen built into the rangefinder body 1. In this embodiment, the rangefinder body 1 is preferably an Lcantu 1000AS laser rangefinder.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention. The 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 liquid level measuring device for foamed slurry, comprising a rangefinder body (1) and a storage tank (2), characterized in that: Inside the liquid storage tank (2), a defoaming cylinder (3) is fixedly installed below the rangefinder body (1). Inside the defoaming cylinder (3), a counterweight float (4) is movably installed. At the lower end of the rangefinder body (1), a lower mounting plate (5) is movably installed above the liquid storage tank (2). A vertical rod (6) is fixedly connected to the back of the lower mounting plate (5). A sleeve rod (7) is movably sleeved at the upper end of the vertical rod (6). The upper end of the vertical rod (6) is provided with a connection for the sleeve rod (7). The spring clip (8) is fixedly installed on the front of the sleeve rod (7) above the rangefinder body (1). The upper mounting plate (9) is fixedly installed on the left and right sides of the upper mounting plate (9) and the lower mounting plate (5) respectively, and the clamping plate (10) is located outside the rangefinder body (1). The front of the clamping plate (10) is connected to the adjustment component (11). The front of the upper mounting plate (9) and the lower mounting plate (5) are both fixedly installed with the outer shell (12) located outside the adjustment component (11).

2. The liquid level measuring device for foam-containing slurry according to claim 1, characterized in that: A viewing window (13) is fixedly installed on the front of the liquid storage tank (2). A drain pipe (14) is fixedly installed on the lower right side of the liquid storage tank (2). A sealing plug (15) is movably connected inside the drain pipe (14). An anti-loss rope (16) is fixedly connected to the upper end of the sealing plug (15). The end of the anti-loss rope (16) away from the sealing plug (15) is fixedly connected to the outer wall of the liquid storage tank (2). A support rod (17) is fixedly installed on the upper back of the liquid storage tank (2). A fixing block (18) located below the vertical rod (6) is fixedly connected to the upper end of the support rod (17). A fastening bolt (19) is threadedly connected to the inner wall of the fixing block (18).

3. The liquid level measuring device for foam-containing slurry according to claim 2, characterized in that: A connecting plate (20) is fixedly installed at the lower end of the vertical rod (6). A locking block (21) is fixedly connected to the end of the connecting plate (20) away from the vertical rod (6). The inner wall of the locking block (21) is movably locked with the outer wall of the fixing block (18), and the fixing block (18) is connected to the locking block (21) by fastening bolts (19).

4. The liquid level measuring device for foam-containing slurry according to claim 1, characterized in that: The adjusting assembly (11) includes a ball nut (111) and a ball screw (112). The inner wall of the ball nut (111) is threadedly connected to the outer wall of the ball screw (112). A crossbar (22) is fixedly installed on the back of the ball nut (111), and the end of the crossbar (22) away from the ball nut (111) is fixedly connected to the front of the clamping plate (10).

5. The liquid level measuring device for foam-containing slurry according to claim 4, characterized in that: The outer walls of the ball screws (112) on the left and right sides are provided with threads in opposite directions. The inner wall of the ball screws (112) is fixedly sleeved with a rotating rod (23). The outer wall of the rotating rod (23) is provided with a limiting component (24) located on the left side of the adjusting component (11). The left end of the rotating rod (23) is fixedly installed with a knob (25) located on the left side of the outer shell (12). The outer walls of the left and right ends of the rotating rod (23) are respectively movably sleeved with the inner walls of the left and right sides of the outer shell (12).

6. The liquid level measuring device for foam-containing slurry according to claim 5, characterized in that: The limiting component (24) includes a limiting gear (241) and a triangular block (242). The triangular block (242) is engaged between two adjacent teeth on the limiting gear (241). The inner wall of the limiting gear (241) is fixedly sleeved with the outer wall of the rotating rod (23).

7. The liquid level measuring device for foam-containing slurry according to claim 6, characterized in that: The upper end of the triangular block (242) is fixedly installed with a telescopic rod (26) located above the limiting gear (241). The outer wall of the telescopic rod (26) is movably sleeved with a cylinder (27) located above the triangular block (242), and the right side of the cylinder (27) is fixedly connected to the left side of the outer shell (12). The upper end of the telescopic rod (26) is fixedly installed with a movable component (28) for connecting the cylinder (27).

8. The liquid level measuring device for foam-containing slurry according to claim 7, characterized in that: The movable component (28) includes a disc (281) and a spring (282). The lower end of the disc (281) is fixedly connected to the upper end of the telescopic rod (26), the upper end of the disc (281) is fixedly connected to the lower end of the spring (282), and the upper end of the spring (282) is fixedly connected to the inner wall of the cylinder (27).

9. The liquid level measuring device for foam-containing slurry according to claim 8, characterized in that: The cylinder (27) has a first groove (29) on its front and rear sides respectively, and a second groove (30) on its front and rear sides respectively located below the first groove (29). The cylinder (27) is movably connected to a rod (31) through the second groove (30) or the first groove (29). A positioning rod (32) is fixedly installed on the outer end of the rod (31), and the end of the positioning rod (32) away from the rod (31) is fixedly connected to a triangular block (242).

10. A method of using a liquid level measuring device containing foamed slurry, applied to the liquid level measuring device containing foamed slurry as described in any one of claims 1-9, characterized in that, The following steps are included: S1. Installation of the rangefinder body (1) First, install the locking block (21) on the fixing block (18), then use the fastening bolt (19) to rotate and pass through the locking block (21) and the fixing block (18) to fix the vertical rod (6) on the support rod (17). At this time, the lower mounting plate (5) is fixed above the liquid storage tank (2). Then place the rangefinder body (1) on the lower mounting plate (5) and install the upper mounting plate (9) on the upper end of the rangefinder body (1) so that the sleeve rod (7) is sleeved on the vertical rod (6). Press the spring clip (8) to move into the vertical rod (6). As the sleeve rod (7) moves downward outside the vertical rod (6), the spring clip (8) rebounds and positions the vertical rod (6) and the sleeve rod (7). The distance between the upper mounting plate (9) and the lower mounting plate (5) can be adjusted according to the height of the rangefinder body (1). S2, Reinforcement of the rangefinder body (1) When the triangular locking block (242) engages with the limiting gear (241), the insert rod (31) is inserted into the inside of the second groove (30). After the insert rod (31) is removed from the inside of the second groove (30), it is inserted into the inside of the first groove (29), causing the triangular locking block (242) to separate from the limiting gear (241). By rotating the rotating rod (23) through the knob (25), the rotating rod (23) rotates and drives the ball screws (112) on the left and right sides to rotate simultaneously. Since the outer walls of the ball screws (112) on the left and right sides are provided with threads in opposite directions, and the ball screws (112) and the balls are connected... The nuts (111) are connected by a threaded connection, so that the rotation of the rotating rod (23) drives the ball nuts (111) on both sides to move towards the rangefinder body (1) simultaneously through the connection of the ball screw (112). The movement of the ball nuts (111) on both sides drives the clamps (10) on both sides to move towards the rangefinder body (1) through the connection of the crossbar (22) until the inner side of the clamp (10) contacts the outer wall of the rangefinder body (1), so that the clamp (10) is used to limit the rangefinder body (1) within the lower mounting plate (5) and the upper mounting plate (9); S3, Operation of the rangefinder body (1) Since the counterweight float (4) is placed inside the defoaming cylinder (3), the defoaming cylinder (3) is used to block the foam in the slurry. After the foam is blocked, the liquid enters the interior of the defoaming cylinder (3). The counterweight float (4) floats on the liquid. The laser emitted by the rangefinder body (1) installed on the lower mounting plate (5) passes through the opening at the top of the defoaming cylinder (3) and shines on the counterweight float (4). The liquid level measurement result is then displayed on the high-definition color screen on the rangefinder body (1).

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