Device for detecting fluidity of gangue paste filling material

Abstract

The utility model discloses a device for detecting the fluidity of a gangue paste filling material, and belongs to a device for detecting the fluidity of gangue paste slurry. Comprising an inverted cone, a supporting frame, a base, a discharging valve, a discharging straight pipe, a universal joint and a horizontal straight pipe. The top of the supporting frame is connected to the side face of the inverted cone. The lower end of the support is connected with a base; a discharging valve is installed at the bottom of the inverted cone, the output end of the discharging valve is connected with a discharging straight pipe, the lower end of the discharging straight pipe is connected with a universal joint, and the output end of the universal joint is connected with a horizontal straight pipe. The device disclosed by the utility model has the advantages that by adopting the device, the flowability of the slurry in different states can be effectively distinguished, a basis is provided for preparing a gangue paste filling material, the slurry with reasonable mass concentration is obtained, and the process requirement of low-pump-pressure long-distance conveying is met.

Description

Technical Field

[0001] The utility model relates to a device for detecting the fluidity of gangue paste slurry, in particular to a device for detecting the fluidity of gangue paste filling material. Background Art

[0002] Currently, paste filling in mining involves using gangue as aggregate and cement as a binder, mixing them with water to create a slurry with good flow properties. This slurry is then used to fill underground goafs during mining. Due to varying mining conditions and the distances between the surface filling station and the goaf, the flow properties of the paste filling material vary. The flow properties of paste filling materials are tested using a slump tester, which includes a funnel 1-1, a cylinder 1-2, a handle 1-3, a foot pedal 1-4, and a tamper 1-5. The filling material paste is poured into the cylinder 1-2 through the funnel 1-1, and the tamper 1-5 can be used to further compact the filling material paste. The foot pedal 1-4 is used to stabilize the cylinder 1-2 while adding the filling material, and the handle 1-3 is used to lift the cylinder 1-2 after the filling material is added. Once the cylinder 1-2 is lifted, the filling material paste is freed from the constraints of the cylinder 1-2 and begins to flow. The flow rate, falling height, and spreading diameter of the filling material paste are monitored to determine the slump and slump spread of the filling material paste. This slump tester has poor resolution for thinner pastes and is difficult to control the paste state. Utility Model Content

[0003] The purpose of the utility model is to provide a device for detecting the fluidity of gangue paste filling material which can effectively distinguish the fluidity of slurries in different states.

[0004] The purpose of the utility model is achieved as follows: a device for detecting the fluidity of gangue slurry filling material, comprising: an inverted cone, a support frame, a base, a discharge valve, a discharge straight pipe, a universal joint and a horizontal straight pipe; the top of the support frame is connected to the side of the inverted cone; the lower end of the support frame is connected to the base; a discharge valve is installed at the bottom of the inverted cone, the output end of the discharge valve is connected to the discharge straight pipe, the lower end of the discharge straight pipe is connected to the universal joint, and the output end of the universal joint is connected to the horizontal straight pipe.

[0005] The volume of the inverted cone is 10L~50L; material level lines of 10L, 20L, 30L, 40L and 50L are marked inside the inverted cone.

[0006] The discharge valve device includes: a ball valve, a butterfly valve, a scraper valve, a slide valve or a pneumatic pressure relief valve.

[0007] The straight feed pipe has a height of 0.5 to 1 m.

[0008] The length of the horizontal straight pipe is 10 to 25 meters.

[0009] The diameters of the inverted cone, the blanking straight pipe and the horizontal straight pipe are all 50 mm.

[0010] The horizontal straight tube can be adjusted within an angle range of -30 to 30 degrees in the vertical direction of the horizontal plane.

[0011] Beneficial effect: Due to the adoption of the above technical scheme, compared with the use of traditional slump cones to detect the slump and slump expansion of the filling material slurry, that is, the flow properties of the slurry, the utility model can effectively identify the flow state of the filling material slurry when the slump and slump expansion are large or the slump and slump expansion are similar, thereby determining whether the filling material slurry is suitable for engineering applications. The device pours the filling material slurry into the inverted cone by setting factors such as the height of the discharge straight pipe, the direction of the universal joint, the length of the horizontal straight pipe, and the angle between the horizontal straight pipe and the horizontal plane. The filling stops when the volume reaches the detection volume line, and then opens the discharge valve to release the filling material slurry in the inverted cone. The slurry flow rate is calculated by calculating the ratio of the volume of the filling material slurry to the time difference between the filling material slurry being discharged and flowing to the outlet. The slurry flow rate obtained by the device can effectively distinguish the flow state of the filling material slurry, and can effectively distinguish the fluidity of slurries with large slump and slump expansion or similar slump and slump expansion, thereby reducing the risks of slurry pipe blockage and high pump pressure in engineering applications. The purpose of the utility model is achieved.

[0012] Advantages: The device of the utility model can effectively distinguish the fluidity of slurries in different states, provide a basis for preparing gangue slurry filling materials, obtain slurry with reasonable mass concentration, and achieve the process requirements of low pump pressure and long distance transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall device structure diagram of the utility model.

[0014] Figure 2 It is the structural diagram of the slump cone in the prior art.

[0015] In the figure, 1. inverted cone; 2. support frame; 3. base; 4. discharge valve; 5. discharge straight pipe; 6. universal joint; 7. flow straight pipe.

[0016] 1-1, funnel; 1-2, cylinder; 1-3, handle; 1-4, foot pedal; 1-5, tamper. DETAILED DESCRIPTION

[0017] Example 1: The utility model describes a device for detecting the fluidity of gangue paste filling materials, comprising: an inverted cone 1, a support frame 2, a base 3, a discharge valve 4, a discharge straight pipe 5, a universal joint 6 and a horizontal straight pipe 7; the top of the support frame 2 is connected to the side of the inverted cone 1; the lower end of the support frame 2 is connected to the base 3; a discharge valve 4 is installed at the bottom of the inverted cone 1, the output end of the discharge valve 4 is connected to the discharge straight pipe 5, the lower end of the discharge straight pipe 5 is connected to the universal joint 6, and the output end of the universal joint 6 is connected to the horizontal straight pipe 7.

[0018] The volume of the inverted cone 1 is 10L~50L; the material level lines of 10L, 20L, 30L, 40L and 50L are marked inside the inverted cone 1.

[0019] The discharge valve 4 includes: a ball valve, a butterfly valve, a scraper valve, a slide valve or a pneumatic pressure relief valve.

[0020] The straight feed pipe 5 has a height of 0.5 to 1 m.

[0021] The horizontal straight pipe 7 is 10 to 25 meters long.

[0022] The inverted cone 1, the blanking straight pipe 5 and the horizontal straight pipe 7 all have a diameter of 50 mm.

[0023] The horizontal straight pipe can be adjusted within an angle range of -30 to 30 degrees in the vertical direction of the horizontal plane.

[0024] The method for using the device for detecting the flow of gangue paste filling material includes:

[0025] Step 1: Determine the test straight pipe height, horizontal straight pipe length, and horizontal straight pipe test angle.

[0026] Step 2: The slurry enters the inverted cone to the corresponding material level line.

[0027] Step 3: Open the discharge valve and record the time T1.

[0028] Step 4: The slurry enters the discharge straight pipe through the discharge valve and then enters the horizontal straight pipe.

[0029] Step 5: Record the time T2 when the slurry flows to the hose outlet.

[0030] Step 6: The time difference from the slurry feeding to the discharge port is the slurry flow time △T.

[0031] Step 7: Calculate the ratio of the test slurry volume to ΔT, i.e., the slurry flow rate V.

[0032] By using the device of the present invention in conjunction with the above-mentioned method of use, the slurry flow state can be effectively distinguished by the slurry flow rate. By data analysis, the risks of slurry pipe blockage and high pump pressure in engineering applications can be reduced, and the slurry fluidity in different states can be effectively distinguished.

Claims

1. A device for detecting the fluidity of gangue paste filling material, characterized by: include: An inverted cone, a support frame, a base, a discharge valve, a discharge straight pipe, a universal joint and a horizontal straight pipe; the top of the support frame is connected to the side of the inverted cone; the lower end of the support frame is connected to the base; a discharge valve is installed at the bottom of the inverted cone, the output end of the discharge valve is connected to the discharge straight pipe, the lower end of the discharge straight pipe is connected to a universal joint, and the output end of the universal joint is connected to the horizontal straight pipe.

2. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The volume of the inverted cone is 10L~50L; material level lines of 10L, 20L, 30L, 40L and 50L are marked inside the inverted cone.

3. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The discharge valve includes: a ball valve, a butterfly valve, a scraper valve, a slide valve or a pneumatic pressure relief valve.

4. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The straight pipe for feeding has a height of 0.5-1m.

5. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The horizontal straight pipe has a length of 10 to 25 m.

6. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The diameters of the inverted cone, the blanking straight pipe and the horizontal straight pipe are all 50 mm.

7. The device for detecting the fluidity of gangue paste filling material according to claim 1, characterized in that: The horizontal straight pipe can be adjusted within an angle range of -30 to 30 degrees in the vertical direction of the horizontal plane.

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