Tailing slurry-making water spraying device

Abstract

The water spraying device comprises an annular water pipe, a plurality of spray head bases are connected to the annular water pipe, inner threads are arranged in inner cavities of the spray head bases, and outer threads are arranged on the outer walls of the spray head bases. The nozzle base is connected with a straight-pipe-shaped hollow slurry making nozzle, one end of the slurry making nozzle is provided with an external thread matched with the internal thread of the nozzle base, the other end of the slurry making nozzle is in a closed arc shape, and a plurality of first water outlet holes are formed in the periphery of the slurry making nozzle; the outer wall of the slurry making nozzle is sleeved with a rubber hose, the two ends of the rubber hose are open, the outer wall, sleeved with the rubber hose, of the slurry making nozzle is further sleeved with a sleeve, a plurality of second water outlet holes are formed in the periphery of the sleeve, an inner cavity in one end of the sleeve is provided with internal threads matched with the external threads on the outer wall of the nozzle base, and the other end of the sleeve is provided with a third water outlet hole. Slurry making water can enter the bottom of the deep-cone thickener or the bottom of the tailing bin from the slurry making spray head, and tailings in the bin cannot enter the slurry making spray head, so that the blockage of a blocked slurry making pipeline is prevented, the sand discharge concentration requirement is met, and the flowability of tailing slurry is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tailings pulp making water spraying device. BACKGROUND

[0002] The deep-cone thickener is a key equipment for thickening tailings, and low-concentration (35%) tailings slurry needs to be thickened to 55-60% tailings slurry meeting the process standard requirements. Since the thickener is continuously operated for 24 hours, the longer the thickening time of tailings in the thickener, the higher the concentration, which often exceeds the concentration required by the process standard, causing the tailings to be unable to be normally discharged and leading to the hidden trouble of the equipment being pressed by the rake. Therefore, the tailings in the thickener need to be treated for pulp making before filling production, so as to meet the process standard requirements.

[0003] The traditional pulp making treatment is to directly pass water into the thickener, and then to fully contact and mix the high-concentration tailings slurry with water by the stirring device inside the thickener. However, this method can cause the pulp making pipe of the underflow cylinder of the thickener to be blocked. After being blocked, the pulp making pipe is processed by manually inserting a reinforcing bar from the inlet, which is difficult to process and has poor effect and is not easy to dredge. The blockage of the pulp making pipe of the underflow cylinder of the thickener can cause the pressure of the deep-cone thickener to rapidly rise, the pressure of the rake frame to rise, and the accident of the rake being pressed. SUMMARY

[0004] The utility model provides a tailings pulp making water spraying device, which aims to solve the problem that the concentration of tailings in the thickener is high, the tailings cannot be normally discharged, and the pulp making pipe of the underflow cylinder of the thickener is easily blocked when the pulp making treatment is adopted, and the hidden trouble of the accident of the rake being pressed exists.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A tailings pulp making water spraying device comprises an annular water pipe, a plurality of nozzle bases are connected to the annular water pipe, an inner thread is arranged in the inner cavity of the nozzle base, and an outer thread is arranged on the outer wall of the nozzle base; a straight pipe-shaped and hollow pulp making nozzle is connected to the nozzle base, an outer thread matched with the inner thread of the nozzle base is arranged at one end of the pulp making nozzle, the other end of the pulp making nozzle is in the form of a closed arc, a plurality of first water outlets are arranged on the outer periphery of the pulp making nozzle; a rubber hose is sleeved on the outer wall of the pulp making nozzle, the rubber hose is open at both ends, a sleeve pipe is further sleeved on the outer wall of the pulp making nozzle on which the rubber hose is sleeved, a plurality of second water outlets are arranged on the outer periphery of the sleeve pipe, an inner thread matched with the outer thread of the outer wall of the nozzle base is arranged in the inner cavity of one end of the sleeve pipe, and a third water outlet is arranged at the other end of the sleeve pipe.

[0007] Further, the annular water pipe is formed by connecting a plurality of pipe sections through flanges.

[0008] Further, the annular water pipe is provided with external threads, the bottom of the nozzle base is provided with internal threads matched with the external threads of the annular water pipe, and the nozzle base and the annular water pipe are screwed after the annular water pipe and the nozzle base are screwed, and the vertical direction of the nozzle base and the annular water pipe is 30°.

[0009] Further, the distance between adjacent nozzle bases is 200-220 mm.

[0010] Further, the diameter of the first and second water outlets is 3-6 mm.

[0011] Compared with the prior art, the tailings slurry making water spraying device has the following beneficial effects:

[0012] 1. The tailings slurry making water spraying device can form high-pressure water into the annular water pipe through the pipeline, and the high-pressure water can open the rubber hose through the slurry making nozzle, so that the water can be sprayed from the second and third water outlets in the form of a fine stream, the tailings in the thickener or the tailings bin are diluted and made into slurry, and the tailings slurry with uniform and stable concentration can be filled and used.

[0013] 2. The tailings slurry making water spraying device innovates a new method for making slurry in a deep container or a bin, and has novel and compact overall design, excellent corrosion resistance and elasticity of the rubber hose, and is suitable for making slurry in a silt pool, a tailings bin and a thickener, so as to improve the uniformity and flowability of the material concentration, and can be widely applied. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a structural schematic view of a tailings slurry making water spraying device of the present application;

[0015] Figure 2 Fig. 4 is a connection schematic view of a slurry making nozzle, a rubber hose and a sleeve of the present application;

[0016] Figure 3 Fig. 5 is a structural schematic view of a slurry making nozzle of the present application;

[0017] Figure 4 Fig. 6 is a structural schematic view of a rubber hose of the present application;

[0018] Figure 5 Fig. 7 is a structural schematic view of a sleeve of the present application;

[0019] Figure: 1 - annular water pipe; 2 - nozzle base; 3 - pulp-making nozzle; 4 - first water outlet hole; 5 - rubber hose; 6 - sleeve; 7 - second water outlet hole; 8 - third water outlet hole; 9 - water inlet; 10 - water outlet. DETAILED DESCRIPTION

[0020] The utility model will be further described below with reference to the drawings:

[0021] As Figures 1-5 shown, the utility model discloses a tailings pulp-making water spraying device, including by multiple section pipe through flange connection and form DN50 annular water pipe 1, annular water pipe 1 material is Q345A low alloy structural steel, be connected with multiple nozzle base 2 on annular water pipe 1, the interval of adjacent nozzle base 2 is 200mm. Annular water pipe 1 is equipped with external thread, and the bottom of nozzle base 2 is equipped with the internal thread of the external thread of annular water pipe 1, after the screw joint of annular water pipe 1 and nozzle base 2, the vertical direction of nozzle base 2 and annular water pipe 1 is 30 °. The inner cavity of nozzle base 2 is equipped with internal thread, and the outer wall is equipped with external thread;Nozzle base 2 is connected with straight pipe shape and hollow pulp-making nozzle 3, and the material of pulp-making nozzle 3 is 42crmo, and the outer diameter is Φ10mm, and the inner diameter is Φ6mm, and one end of pulp-making nozzle 3 is equipped with the external thread of the internal thread of nozzle base 2, and the other end is arc-shaped and closed, and the outer periphery of pulp-making nozzle 3 is evenly equipped with multiple first water outlet holes 4, and the aperture is all Φ3mm;The outer wall of pulp-making nozzle 3 is equipped with rubber hose 5 with the material of polybutadiene, and the outer diameter of rubber hose 5 is Φ13mm, and the inner diameter is Φ8mm, and the length is 90mm, and the both ends of rubber hose 5 are opened, and the rubber hose 5 is covered in pulp-making nozzle 3, and the first water outlet hole 4 on pulp-making nozzle 3 can be covered completely. The outer wall of pulp-making nozzle 3 covered with rubber hose 5 is also equipped with sleeve 6, and the material of sleeve 6 is 42crmo, and the outer diameter is Φ30mm, and the inner diameter is Φ15mm, and the outer periphery of sleeve 6 is evenly equipped with multiple second water outlet holes 7, and the aperture is all Φ6mm, and one end inner cavity of sleeve 6 is equipped with the internal thread of the external thread of nozzle base 2 outer wall, and the other end of sleeve 6 is equipped with third water outlet hole 8, and the aperture is all Φ13mm.

[0022] When using, first, nozzle base 2 is fixedly connected on annular water pipe 1, then rubber hose 5 is sleeved into pulp-making nozzle 3 from the arc-shaped end of pulp-making nozzle 3, leaving the external thread end, then the external thread end of pulp-making nozzle 3 is connected with the internal thread of nozzle base 2, finally sleeve 6 is sleeved into pulp-making nozzle 3 from the arc-shaped end, so that the internal thread of sleeve 6 is connected closely with the external thread of nozzle base 2.

[0023] Before the paste filling, the slurry making pump under the water tank is started to form high pressure water entering the annular water pipe 1 from the water inlet 9 through the pipeline, at this time the water outlet 10 of the annular water pipe 1 is closed, the high pressure water expands the rubber hose 5 through the slurry making nozzle 3, at this time the rubber hose 5 is inflated and enlarged, the water flows out along the inner wall of the inflated rubber hose 5 from both ends, the water enters the sleeve 6 and is sprayed from the second water outlet hole 7 and the third water outlet hole 8 in the form of fine stream, the tailings in the thickener or the tailings bin are made into slurry, diluted, and formed into tailings slurry with uniform and stable concentration for filling. When the tailings are not used, the rubber hose 5 is contracted under the elastic action to cover the first water outlet hole 4 tightly, preventing the external tailings particles from entering the slurry making nozzle 3 and protecting the slurry making nozzle 3 from being blocked by fine particles of tailings. The slurry making water can enter the deep cone thickener or the bottom of the tailings bin from the slurry making nozzle 3, and the tailings in the bin cannot enter the slurry making nozzle 3, which plays the role of one-way valve, prevents the pipe from being blocked, meets the requirement of sand discharge concentration, and ensures the normal use of tailings production.

[0024] The tailings slurry making water spraying device of the application is installed in the deep cone thickener, when the pressure of the thickener is higher than 4.0MPa, the water pump and valve are opened to make slurry for about 40min, the pressure can be reduced to below 2MPa, ensuring the stable operation of the thickener. Before starting each time, the pump is started to make slurry for about 30min, the tailings concentration is quickly reduced to the tailings slurry with concentration of 55-60% meeting the technical standard requirement, the slurry making effect is significantly improved, the sand discharge concentration requirement is met, the tailings slurry has good fluidity, and no blockage occurs after use.

Claims

1. A tailings slurry water injection device, characterized by: The utility model provides a kind of water pipe, including annular water pipe (1), several shower head bases (2) are connected on the annular water pipe (1), the inner cavity of shower head base (2) is equipped with internal thread, and outer wall is equipped with external thread;The straight tubular and hollow slurry-making nozzle (3) is connected on the shower head base (2), and the outer thread of slurry-making nozzle (3) one end is matched with the internal thread of shower head base (2), the other end is closed circular arc, and the outer periphery of slurry-making nozzle (3) is equipped with several first water outlet holes (4);The outer wall of slurry-making nozzle (3) is equipped with rubber hose (5), and rubber hose (5) both ends are open, and the outer wall of slurry-making nozzle (3) of sleeve rubber hose (5) is also equipped with sleeve pipe (6), the outer periphery of sleeve pipe (6) is equipped with several second water outlet holes (7), and the inner cavity of sleeve pipe (6) one end is equipped with internal thread matched with the external thread of shower head base (2) outer wall, and the other end is equipped with third water outlet hole (8).

2. A tailings slurry water injection device as claimed in claim 1, characterized in that: The annular water pipe (1) is connected by flange by several sections of pipe.

3. A tailings slurry water injection device as claimed in claim 2, characterized in that: The annular water pipe (1) is equipped with external thread, the bottom of shower head base (2) is equipped with internal thread matched with the external thread of annular water pipe (1), after the screw connection of annular water pipe (1) and shower head base (2), the vertical direction of shower head base (2) and annular water pipe (1) is 30 °.

4. A tailings slurry water injection device as claimed in claim 3, characterized in that: The distance between adjacent shower head bases (2) is 200-220mm.

5. A tailings slurry water jet device according to any one of claims 1 to 4, wherein: The aperture of the first water outlet hole (4) and the second water outlet hole (7) is 3-6mm.

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