Novel slurry mixing structure of leaching tank

Abstract

The utility model relates to a novel slurry mixing structure for leaching tanks, which comprises a first leaching tank and a second leaching tank, carbon separation sieves are arranged at discharge ports of the first leaching tank and the second leaching tank, the slurry mixing structure is connected between the first leaching tank and the second leaching tank, and the slurry mixing structure comprises a slurry mixing pipe. A pneumatic pump is mounted at one end of the slurry mixing pipe, the slurry mixing pipe extends into the second leaching tank, the other end of the slurry mixing pipe extends out of the first leaching tank, then is connected to the buffer tank and is communicated with an inlet pipe of the buffer tank, and an outlet pipe of the buffer tank extends into the first leaching tank; and an air inlet of the pneumatic pump is connected with an air pipe. According to the slurry stringing structure provided by the utility model, the buffer box is arranged at the tail end of the slurry stringing pipe, so that the gold-loaded carbon slurry can be buffered, decelerated and decompressed in the slurry stringing process, the pollution caused by umbrella-shaped splashing of the slurry is avoided, and the occupational health hazard caused by dispersion of micro-fine particle minerals and hydrogen cyanide gas can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to leaching equipment technical field, concretely relates to a novel leaching tank series pulp structure. BACKGROUND

[0002] In the whole mud cyanidation carbon slurry process, the leaching tank is often installed in multiple ladder forms, the ore pulp flows from the first end leaching tank to the tail end leaching tank gradually, and the gold-loaded carbon must flow reversely relative to the ore pulp, in order to achieve this purpose, the current mainly uses carbon screen and series pulp pipe to complete. The carbon screen is arranged at the discharge port position of the leaching tank, can block the gold-loaded carbon flowing to the next leaching tank, and the gold-loaded carbon remaining in the leaching tank is sent to the previous leaching tank through the series pulp pipe and the air lift connected with the series pulp pipe, and countercurrent adsorption is carried out.

[0003] However, when the gold-loaded carbon series pulp structure is used, since air needs to be continuously input into the ore pulp during cyanidation leaching, a large amount of air is dispersed in the ore pulp, when the gold-loaded carbon is transported to the previous leaching tank through the series pulp pipe, a large amount of air dispersed in the pulp body is precipitated, the pressure in the series pulp pipe is sharply increased, the pulp body is splashed out from the pipe opening in the form of umbrella, a large amount of fine particles and hydrogen cyanide gas are dispersed in the air, the surrounding channel is seriously polluted, and the professional health of the operating personnel is harmed. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the utility model provides a novel leaching tank series pulp structure, so that the gold-loaded carbon is slowed down and reduced in pressure in the series pulp process, umbrella-shaped splashing of the pulp body is avoided, and the professional health harm caused by dispersion of fine particle minerals and hydrogen cyanide gas is reduced.

[0005] The specific technical scheme of the utility model is as follows: a novel leaching tank series pulp structure, which comprises a first leaching tank and a second leaching tank, a carbon screen is arranged at the discharge port of the first leaching tank and the second leaching tank, a series pulp structure is connected between the first leaching tank and the second leaching tank, the series pulp structure comprises a series pulp pipe, one end of the series pulp pipe is provided with a pneumatic pump and extends into the second leaching tank, the other end of the series pulp pipe extends to the outside of the first leaching tank and is connected to a buffer tank, and the buffer tank is connected to the inlet pipe of the buffer tank in communication, and the outlet pipe of the buffer tank extends into the first leaching tank; the air inlet of the pneumatic pump is connected with an air pipe.

[0006] Further, preferably, the diameter of the outlet pipe of the buffer tank is larger than that of the inlet pipe.

[0007] Further, preferably, stirring devices are arranged in the first leaching tank and the second leaching tank, the stirring device comprises upper and lower impellers arranged vertically and spaced apart, and the pneumatic pump is arranged at a position close to the lower impeller.

[0008] Further, preferably, the string pulp pipe and the buffer tank are both provided with a polymer wear-resistant lining.

[0009] Further, preferably, the diameter of the string pulp pipe and the buffer tank inlet pipe are both 200mm.

[0010] Further, preferably, the diameter of the buffer tank outlet pipe is 300mm.

[0011] Further, preferably, the string pulp pipe is provided with a support at the top edge of the second leaching tank for supporting the string pulp pipe.

[0012] Further, preferably, the buffer tank is fixedly installed below the top channel of the leaching tank.

[0013] The beneficial effects of the present application are as follows: the string pulp structure provided by the present application sets a buffer tank at the tail end of the string pulp pipe, utilizes the principle that the flow velocity will decrease when the cross-sectional area of fluid passing through is increased under the same flow, buffers and slows down the gold-loaded carbon slurry, avoids the pollution caused by the splashing of the slurry around, and at the same time, reduces the pressure of the slurry by the collision of the slurry and the buffer tank, reduces the dispersion of fine-grained minerals and hydrogen cyanide gas, and thus reduces the occupational health hazards of cyanide leaching operation on the operating personnel. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a schematic view of the internal structure of a novel string pulp structure of a leaching tank according to the present embodiment;

[0015] Figure 2 Fig. 2 is a top view of a novel string pulp structure of a leaching tank according to the present embodiment;

[0016] Figure 3 Fig. 3 is a front view of a string pulp structure according to the present embodiment; Figure 1 Fig. 4 is a side view of a string pulp structure according to the present embodiment;

[0017] Figure 4 Fig. 5 is a front view of a buffer tank according to the present embodiment; Figure 1 Fig. 6 is a side view of a buffer tank according to the present embodiment;

[0018] Figure 5 Fig. 7 is a right view of a buffer tank according to the present embodiment; Figure 1 Fig. 8 is a front view of a buffer tank according to the present embodiment;

[0019] Figure 6 Fig. 9 is a right view of a buffer tank according to the present embodiment; Figure 5 Fig. 10 is a side view of a buffer tank according to the present embodiment;

[0020] In the drawings: 1 - first leaching tank; 2 - second leaching tank; 3 - string pulp structure, 31 - string pulp pipe, 32 - pneumatic pump, 33 - buffer tank, 34 - air pipe; 4 - stirring device, 41 - upper impeller, 42 - lower impeller; 5 - carbon separation screen; 6 - support; 7 - top channel of leaching tank. DETAILED DESCRIPTION

[0021] In order to make the technical problems and technical solutions solved by the utility model more clear and explicit, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0022] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings and is only for the convenience of describing the utility model and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] As shown in Figures 1 to 4 The embodiment provides a novel leaching tank series pulp structure, which comprises a first leaching tank 1 and a second leaching tank 2, a carbon separation sieve 5 is arranged at the discharge port of the first leaching tank 1 and the second leaching tank 2, a series pulp structure 3 is connected between the first leaching tank 1 and the second leaching tank 2, the series pulp structure 3 comprises a series pulp pipe 31, a pneumatic pump 32, a buffer tank 33 and a gas pipe 34, one end of the series pulp pipe 31 is provided with the pneumatic pump 32 and extends into the second leaching tank 2, the other end of the series pulp pipe 31 extends to the outside of the first leaching tank 1 and is connected to the buffer tank 33, and the buffer tank 33 is communicated with the inlet pipe of the buffer tank 33, and the outlet pipe of the buffer tank 33 extends into the first leaching tank 1; the gas inlet of the pneumatic pump 32 is connected with the gas pipe 34.

[0025] The series pulp pipe 31 and the top edge of the second leaching tank 2 are provided with a support 6 for stably supporting the series pulp pipe 31, and the buffer tank 33 is arranged below the leaching tank top channel 7, so that when the pulp flows out of the buffer tank 33, the pulp can be prevented from falling into the first leaching tank 1 and colliding with the ore pulp to splash the mineral on the leaching tank top channel 7 and cause pollution.

[0026] As shown in Figure 5As shown, the diameter of the outlet pipe of the buffer tank 33 is larger than the diameter of its inlet pipe. In this embodiment, the diameters of both the slurry pipe 31 and the inlet pipe of the buffer tank 33 are 200 mm, while the diameter of the outlet pipe of the buffer tank 33 is 300 mm. The buffer tank 33 is a cube with a side length of 800 mm. Of course, the dimensions of the slurry pipe 31, the buffer tank 33, and their inlet and outlet pipes can also be other dimensions. For example... Figure 6 As shown, the inlet pipe of the buffer tank 33 has bolt holes, and the slurry pipe 31 can be bolted to the inlet pipe for easy disassembly and replacement.

[0027] like Figure 1 As shown, both the first leaching tank 1 and the second leaching tank 2 are equipped with a stirring device 4. The stirring device 4 includes an upper impeller 41 and a lower impeller 42 arranged vertically at intervals. The pneumatic pump 32 is located near the lower impeller 42 to suck out the gold-loaded carbon in the second leaching tank 2 as much as possible.

[0028] Both the aforementioned slurry pipe 31 and buffer tank 33 are equipped with a 10mm high-polymer wear-resistant lining, which has the advantages of wear resistance, corrosion resistance and impact resistance, thus helping to extend their service life.

[0029] Working principle: During the cyanide leaching process, compressed air is supplied to the pneumatic pump 32 through the air pipe 34. The pneumatic pump 32 then draws the gold-loaded carbon into the slurry pipe 31. The 200mm slurry pipe 31 then lifts the gold-loaded carbon from the second leaching tank 2 to a cubic buffer tank 33 with a side length of 800mm at the top of the second leaching tank 1. According to the continuity equation in fluid mechanics, the product of the fluid's cross-sectional area, density, and velocity is a constant. As the gold-loaded carbon flows from the slurry pipe into the buffer tank, its density remains essentially constant, but the cross-sectional area of ​​the fluid increases, causing a significant decrease in fluid velocity. This achieves a buffering and deceleration effect. Thus, when the gold-loaded carbon falls into the first leaching tank 1 from the 300mm outlet pipe, the slurry velocity is low, effectively preventing it from splashing and causing contamination. Meanwhile, because the slurry collides with the buffer tank 33 and changes its flow direction, the pressure on the slurry itself is released and reduced. Therefore, when the slurry flows out of the buffer tank 33, it will not produce a large amount of fine mineral particles and hydrogen cyanide gas dispersion, thus reducing the occupational health hazards to workers in cyanide leaching operations. In addition, the setting of the outlet pipe diameter being larger than the inlet pipe diameter is more conducive to maintaining the buffering, deceleration, and pressure reduction effect.

[0030] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel leaching tank series pulp structure, comprising a first leaching tank (1) and a second leaching tank (2), the discharge port of the first leaching tank (1) and the second leaching tank (2) is provided with a carbon isolation screen (5), characterized in that: The first leaching tank (1) and the second leaching tank (2) are connected with a series pulp structure (3), the series pulp structure (3) comprises a series pulp pipe (31), one end of the series pulp pipe (31) is provided with a pneumatic pump (32), and the series pulp pipe (31) extends into the second leaching tank (2), the other end of the series pulp pipe (31) extends to the outside of the first leaching tank (1) and is connected to a buffer tank (33), and the buffer tank (33) is connected with an inlet pipe of the buffer tank (33), and an outlet pipe of the buffer tank (33) extends into the first leaching tank (1); the pneumatic pump (32) is connected with an air pipe (34).

2. A novel series of pulp structure of leaching tank according to claim 1, characterized in that: The diameter of the outlet pipe of the buffer tank (33) is greater than that of the inlet pipe.

3. The novel series-impeller structure of the leaching tank according to claim 2, characterized in that: The first leaching tank (1) and the second leaching tank (2) are provided with stirring devices (4), the stirring devices (4) comprise upper impellers (41) and lower impellers (42) arranged vertically and spaced apart, and the pneumatic pump (32) is arranged close to the lower impeller (42).

4. A new type of immersed groove string pulp structure according to claim 2 or 3, characterized in that: The series pulp pipe (31) and the buffer tank (33) are provided with high polymer wear-resistant linings.

5. A novel series of pulp structure of leaching tank according to claim 4, characterized in that: The diameters of the series pulp pipe (31) and the inlet pipe of the buffer tank (33) are both 200mm.

6. A novel series of pulp structure of leaching tank according to claim 5, characterized in that: The diameter of the outlet pipe of the buffer tank (33) is 300mm.

7. A novel series of pulp structure of leaching tank according to claim 4, characterized in that: The series pulp pipe (31) is provided with a support (6) at the top edge of the second leaching tank (2) for supporting the series pulp pipe (31).

8. A novel series of pulp structure of leaching tank according to claim 4, characterized in that: The buffer tank (33) is mounted and fixed below a leaching tank top channel (7).

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