A tailings gravity flow discharge energy dissipation treatment device and its process

Abstract

The present invention discloses an energy dissipation treatment device and process suitable for self-flow discharge of tailings, which relates to the technical field of tailings treatment. It includes a main body, a flow splitting mechanism is installed inside the main body, rotating blades are installed on both sides inside the main body, a blocking mechanism is installed on both sides inside the main body, a six-blade plate is installed on the main body, both ends of the six-blade plate are rotatably connected to both sides of the main body, baffle plates are symmetrically arranged inside the main body, a stilling basin is connected below the main body, and a cleaning mechanism is arranged inside the stilling basin. The structure of the present invention is novel, which can split and dissipate the energy of the flowing-down tailings. Multiple groups of energy dissipation devices, namely rotating blades, blocking mechanisms, six-blade plates and baffle plates, are used to dissipate the energy of the tailings multiple times, which can greatly reduce the kinetic energy of the tailings, extend the service life of the device, and improve the working efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of tailings treatment, and particularly relates to an energy dissipation treatment device and process suitable for self-flow discharge of tailings. Background Art

[0002] During the process of mine exploitation, a large amount of solid waste, namely tailings, will be generated after the concentrator in the mine extracts concentrates. These tailings generally need to be transported to the tailings pond for storage by means of self-flow transportation of tailings (a transportation method that utilizes the geometric height difference between the concentrator and the tailings pond to convert the potential energy of the tailings slurry into kinetic energy, thereby driving it to flow in a self-flow channel or chute and reach the tailings pond for stacking). However, the self-flow transportation of tailings requires potential energy, that is, the required geometric height difference is certain. When the actual geometric height difference between the concentrator and the tailings pond is greater than the required geometric height difference, the kinetic energy converted from the potential energy will be too large. To avoid accidents, it is necessary to reduce this part of the excess energy of the tailings.

[0003] Therefore, people usually set up a stilling basin at the tailings treatment site. A stilling basin is an energy dissipation facility that generates a bottom-flow hydraulic jump downstream of the water discharge structure. The stilling basin can quickly change the downstream rapid flow into a slow flow, thereby achieving the elimination of the impact force of the rapidly flowing water. To enhance the energy dissipation effect, auxiliary energy dissipation tools are usually added in the stilling basin to achieve the extension of the service life of the discharge device, protect the use safety of the discharge device, reduce the consumption of laying pipelines, and improve the efficiency of the discharge work. Therefore, we propose an energy dissipation treatment device and process suitable for self-flow discharge of tailings. Summary of the Invention

[0004] An energy dissipation treatment device suitable for self-flow discharge of tailings proposed by the present invention can perform shunt energy dissipation on the flowing-down tailings. Multiple groups of energy dissipation devices, such as rotating blades, blocking mechanisms, six-blade plates, and baffle plates, are used to perform energy dissipation on the tailings multiple times, which can greatly reduce the kinetic energy of the tailings, extend the service life of the device, and improve the working efficiency of the device.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An energy dissipation treatment device suitable for self-flow discharge of tailings includes a main body. A shunt mechanism is installed inside the main body. Rotating blades are installed on both sides inside the main body. Blocking mechanisms are installed on both sides inside the main body. A six-blade plate is installed on the main body. Both ends of the six-blade plate are rotatably connected to both sides of the main body. Baffle plates are symmetrically arranged inside the main body. A stilling basin is connected below the main body. A cleaning mechanism is arranged inside the stilling basin.

[0007] Preferably, partition plates are arranged on both sides of the main body. The partition plates face each other to form a pulp inlet tank. The ends of the partition plates are provided with arc-shaped plates of a free arc mechanism. On one side inside the partition plates, fixing frames are symmetrically arranged, and the rotating blades are rotatably connected and installed on the fixing frames.

[0008] Preferably, the flow splitting mechanism includes fixing bolts fixedly installed on the main body. Left and right baffles are sleeved on the fixing bolts. Installation grooves are formed on both the left and right baffles. Rotating plates are installed in the installation grooves, and the rotating plates are rotatably connected to the blocking mechanism. A buffer mechanism is arranged between the left and right baffles.

[0009] Preferably, both ends of the buffer mechanism are rotatably connected to the left and right baffles respectively. The buffer mechanism includes a housing. A spring is installed inside the housing. Connecting rods are arranged at both ends of the housing, and the connecting rods extend into the housing.

[0010] Preferably, the energy dissipation pool includes a storage pool opened inside the energy dissipation pool. One side of the storage pool has a 45° slope structure. An outlet is opened on one side of the energy dissipation pool. A filter plate is installed at the outlet, and a discharge port is arranged below the outlet.

[0011] Preferably, the baffle plates are arranged in an arc structure inside the main body. An overflow groove is formed between the baffle plates, and the radian of the arc structure of the baffle plates is slightly larger than the movement track of the blades of the six-blade plate.

[0012] Preferably, the blocking mechanism includes a buffer cylinder and a baffle plate. One end of the buffer cylinder is rotatably connected to the main body, the other end of the buffer cylinder is rotatably connected to the baffle plate, and one end of the baffle plate is rotatably connected to the main body.

[0013] Preferably, the cleaning mechanism includes a pushing cylinder and a pushing plate. The pushing cylinder is installed on one side of the energy dissipation pool. A pushing plate is arranged inside the pushing cylinder, and the pushing plate extends into the energy dissipation pool.

[0014] A tailings gravity flow discharge energy dissipation treatment process, which includes the following steps;

[0015] First step, the tailings flow into the device through the pulp inlet tank formed by the partition plates on both sides of the main body;

[0016] Second step, the tailings flowing into the main body reach the flow splitting mechanism and are initially energy-dissipated under the blockage of the left and right baffles;

[0017] Third step, the tailings after initial energy dissipation fall onto the rotating blades. The blades of the rotating blades are pushed by the tailings to rotate and perform secondary energy dissipation;

[0018] In the fourth step, the tailings after secondary energy dissipation reach the blocking mechanism, and the tailings fall on the baffle. The baffle blocks the front of the tailings and dissipates energy three times;

[0019] In the fifth step, the tailings after three - stage energy dissipation reach the six - blade plate. The tailings will push the blades of the six - blade plate and drive the six - blade plate to rotate, performing four - stage energy dissipation. Driven by the tailings to rotate, the tailings flow out through the overflow trough between the baffle plates;

[0020] In the sixth step, the tailings after four - stage energy dissipation flow into the stilling basin through the overflow trough between the baffle plates. The solids in the tailings settle and accumulate at the bottom of the storage pool. The overflow water will flow out from the water outlet, and the filter plate isolates the solids in the tailings;

[0021] In the seventh step, the solid tailings deposited at the bottom of the stilling basin will be pushed out from the discharge port by the cleaning mechanism through the push plate.

[0022] A tailings gravity - flow discharge energy - dissipation treatment process. In the second step, a buffer mechanism is used for buffer energy dissipation between the left baffle and the right baffle, and rotating plates are provided on the left baffle and the right baffle. When the tailings fall on the left baffle and the right baffle, the rotating plates will be impacted by the tailings and rotate to perform further energy dissipation;

[0023] In the fourth step, a buffer cylinder is provided between the main body and the baffle, and the baffle performs buffer energy dissipation through the buffer cylinder.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. This device uses a flow - splitting mechanism to split and dissipate the energy of the tailings. By installing rotating blades, a blocking mechanism, a six - blade plate and baffle plates, multi - stage energy dissipation of the tailings is achieved, reducing the impact force of the tailings on the device, extending the service life of the device, ensuring the safety of the device during use, and further improving the working efficiency of the energy - dissipation device.

[0026] 2. This device is equipped with a buffer mechanism on the flow - splitting mechanism. The buffer mechanism can play a buffering role when the left baffle and the right baffle on both sides of the flow - splitting mechanism are impacted, reducing the impact force of the tailings and extending the service life of the flow - splitting mechanism. Moreover, the main body is equipped with rotating plates on the left baffle and the right baffle, and the rotating plates can further dissipate the energy of the split tailings without affecting the flow of the tailings.

[0027] 3. A buffer cylinder is installed behind the blocking mechanism of this device. The buffer cylinder can play a buffering role when the baffle is impacted by the tailings, and further absorb the impact force of the tailings, not only effectively extending the service life of the blocking mechanism, but also playing a role in energy dissipation.

[0028] 4. One side of the stilling basin of this device is of an inclined structure, which can enable the solids in the tailings to slide uniformly to the bottom of the stilling basin during natural sedimentation, ensuring that there is no residue on the outer wall of the stilling basin, so that there will be no residue when the device cleans the sedimented tailings.

[0029] 5. And a cleaning mechanism is installed in the stilling basin. The cleaning mechanism can quickly discharge the tailings deposited inside the stilling basin by pushing the push plate with a pushing cylinder, facilitating the discharge of the tailings and improving the efficiency of the tailings treatment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the main structure of the present invention,

[0031] Figure 2 is a top view of the present invention,

[0032] Figure 3 is a cross-sectional view of the present invention,

[0033] Figure 4 is a side cross-sectional view of the present invention,

[0034] Figure 5 is a schematic diagram of the structure of the flow splitting mechanism of the present invention,

[0035] Figure 6 is an exploded schematic diagram of the flow splitting mechanism of the present invention,

[0036] Figure 7 is a cross-sectional view of the buffer mechanism of the present invention,

[0037] Figure 8 of the present invention Figure 2 is an enlarged view of the structure at A in

[0038] Reference numerals in the figures: 1. Main body; 101. Partition board; 102. Arc-shaped plate; 103. Fixed frame; 2. Flow splitting mechanism; 201. Fixed bolt; 202. Left baffle; 203. Right baffle; 204. Installation groove; 205. Rotating plate; 206. Buffer mechanism; 2061. Outer shell; 2062. Spring; 2063. Connecting rod; 3. Rotating blade; 4. Blocking mechanism; 401. Buffer cylinder; 402. Baffle; 5. Six-blade plate; 6. Partition board; 7. Stilling basin; 701. Storage pool; 702. Water outlet; 703. Filter plate; 704. Discharge port; 8. Cleaning mechanism; 801. Pushing cylinder; 802. Push plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0040] Reference Figures 1-8 , an energy dissipation treatment device suitable for the self-flow discharge of tailings, including a main body 1. A flow splitting mechanism 2 is installed inside the main body 1. Rotating blades 3 are installed on both sides inside the main body 1. A blocking mechanism 4 is installed on both sides inside the main body 1. A six-blade plate 5 is installed on the main body 1. Both ends of the six-blade plate 5 are rotatably connected to both sides of the main body 1. Baffle plates 6 are symmetrically arranged inside the main body 1. A stilling basin 7 is connected below the main body 1. A cleaning mechanism 8 is arranged inside the stilling basin 7. For the energy dissipation treatment device and process suitable for the self-flow discharge of tailings, it is characterized in that partition plates 101 are arranged on both sides of the main body 1. The partition plates 101 face each other to form a slurry inlet tank. The end of the partition plate 101 is provided with an arc-shaped plate 102 of a free arc mechanism. Fixed brackets 103 are symmetrically arranged on one side inside the partition plate 101, and the rotating blade 3 is rotatably connected to the fixed bracket 103.

[0041] The flow splitting mechanism 2 includes a fixing bolt 201. The fixing bolt 201 is fixedly installed on the main body 1. A left baffle plate 202 and a right baffle plate 203 are sleeved on the fixing bolt 201. Installation grooves 204 are opened on both the left baffle plate 202 and the right baffle plate 203. A rotating plate 205 is installed in the installation groove 204, and the rotating plate 205 is rotatably connected to the blocking mechanism 4. A buffer mechanism 206 is arranged between the left baffle plate 202 and the right baffle plate 203.

[0042] Both ends of the buffer mechanism 206 are rotatably connected to the left baffle plate 202 and the right baffle plate 203 respectively. The buffer mechanism 206 includes a housing 2061. A spring 2062 is installed inside the housing 2061. Connecting rods 2063 are arranged at both ends of the housing 2061, and the connecting rods 2063 all extend into the housing 2061.

[0043] The stilling basin 7 includes a storage pool 701. The storage pool 701 is opened inside the stilling basin 7, and one side of the storage pool 701 has a 45° slope structure. An outlet 702 is opened on one side of the stilling basin 7. A filter plate 703 is installed at the outlet 702. A discharge port 704 is arranged below the outlet 702; the baffle plates 6 are arranged in an arc structure inside the main body 1. An overflow tank is opened between the baffle plates 6, and the radian of the arc structure of the baffle plates 6 is slightly larger than the movement track of the blades of the six-blade plate 5.

[0044] The blocking mechanism 4 includes a buffer cylinder 401 and a baffle plate 402. One end of the buffer cylinder 401 is rotatably connected to the main body 1. The other end of the buffer cylinder 401 is rotatably connected to the baffle plate 402. One end of the baffle plate 402 is rotatably connected to the main body 1.

[0045] The cleaning mechanism 8 includes a pushing cylinder 801 and a push plate 802. The pushing cylinder 801 is installed on one side of the energy dissipation pool 7. A free push plate 802 is arranged inside the pushing cylinder 801, and the push plate 802 extends into the energy dissipation pool 7.

[0046] The working principle of the present invention: When carrying out the gravity flow treatment of tailings, the tailings flow into the device through the slurry inlet groove composed of the partition plates 101. The arc-shaped plate 102 can better buffer the flowing-down tailings. When the tailings pass through the shunt mechanism 2, they will be shunted. The shunted tailings will be subjected to the first energy dissipation treatment. When the left baffle 202 and the right baffle 203 are impacted by the tailings, the buffer mechanism 206 will buffer. The buffer mechanism 206 can utilize the buffer of the spring 2062 to further dissipate energy, and at the same time change the rigid shunt mechanism 2 into an elastic state, which can protect the shunt mechanism 2 and extend the service life of the shunt mechanism 2. At the same time, the rotating plate 205 installed on the installation groove 204 can also dissipate the energy of the tailings without affecting the flow;

[0047] When the tailings after the first energy dissipation pass through the rotating blades 3, they will drive the rotating blades 3 to rotate. The rotating rotating blades 3 absorb the impact force in the tailings and will carry out the second energy dissipation of the tailings; When the tailings after the second energy dissipation pass through the blocking mechanism 4, the blocking mechanism 4 blocks the impact of the tailings through the baffle 402. The buffer mechanism 206 can play a buffering role when the baffle 402 is impacted by the tailings and further absorb the impact force of the tailings, effectively extending the service life of the blocking mechanism 4 and playing the third energy dissipation of the tailings;

[0048] The blades of the six-blade plate 5 are relatively large and require more kinetic energy to drive. Therefore, when the tailings after three energy dissipations pass through the six-blade plate 5, the tailings drive the six-blade plate 5 to rotate, and the impact energy will be further consumed. The blocking plate 6 is fixedly installed on the main body 1, and a large part of the kinetic energy will also be offset when the tailings impact the blocking plate 6 head-on. The tailings after four energy dissipation treatments have effectively reduced the impact force. The gently flowing tailings can no longer damage the tailings treatment device, effectively ensuring the safety of the device and greatly extending the service life of the device;

[0049] Finally, the tailings will flow into the stilling basin 7. One side of the stilling basin 7 is inclined, which can make the solids in the tailings slide uniformly to the bottom of the stilling basin 7 during natural sedimentation, ensuring that there is no residue on the outer wall of the stilling basin 7, so that there is no residue when the device cleans the sedimented tailings. The filter plate 703 can isolate the solid tailings and retain all the solid tailings in the stilling basin 7 to prevent the solids in the tailings from flowing out through the water outlet 702. At the same time, a cleaning mechanism 8 is installed in the stilling basin 7. The cleaning mechanism 8 can push the push cylinder 801 through the push plate 802, and can push the solid tailings deposited inside the stilling basin 7 out through the discharge port 704, facilitating the discharge of the tailings and improving the efficiency of the tailings treatment work.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered by the protection scope of the present invention.

Claims

1. An energy dissipation treatment device suitable for the gravity flow discharge of tailings slurry, characterized in that, the treatment device includes a main body (1), partition plates (101) arranged on both sides of the main body (1) facing each other to form a slurry inlet tank, a stilling basin (7) is connected below the main body (1), and a cleaning mechanism (8) is arranged in the stilling basin (7); a flow splitting mechanism (2) is installed inside the main body (1), rotary blades (3) and a blocking mechanism (4) are installed on both sides inside the main body (1), both ends of a six-blade plate (5) installed in the main body (1) are rotatably connected to both sides of the main body (1), blocking partitions (6) are symmetrically arranged inside the main body (1), and an overflow tank is arranged between the blocking partitions (6); the flow splitting mechanism (2) includes a fixing bolt (201) fixedly installed on the main body (1), a left baffle (202) and a right baffle (203) with installation grooves (204) sleeved on the fixing bolt (201), a rotating plate (205) is installed in the installation groove (204) and is rotatably connected to the installation groove (204), and a buffer mechanism (206) is arranged between the left baffle (202) and the right baffle (203); the blocking mechanism (4) includes a buffer cylinder (401) and a baffle (402), both ends of the buffer cylinder (401) are rotatably connected to the main body (1) and the baffle (402) respectively, and one end of the baffle (402) is rotatably connected to the main body (1); the stilling basin (7) includes a storage pool (701) opened inside the stilling basin (7), and one side of the storage pool (701) is of a 45° slope structure, a water outlet (702) is opened on one side of the stilling basin (7), and a discharge port (704) is arranged below the water outlet (702); the cleaning mechanism (8) includes a pushing cylinder (801) and a pushing plate (802), the pushing cylinder (801) is installed on one side of the stilling basin (7), and the pushing cylinder (801) is connected to the pushing plate (802) inside the storage pool (701); the treatment process using the treatment device includes the following steps: First step, the tailings slurry flows into the device through the slurry inlet tank; Second step, the incoming tailings slurry reaches the flow splitting mechanism (2), and initial energy dissipation is carried out under the blockage of the left baffle (202) and the right baffle (203). At the same time, buffer energy dissipation is carried out between the left baffle (202) and the right baffle (203) through the buffer mechanism (206). And when the tailings slurry falls on the left baffle (202) and the right baffle (203), the rotating plate (205) will be impacted and rotated to further dissipate energy; Third step, the tailings slurry after energy dissipation in the second step falls on the rotary blades (3), and the tailings slurry pushes the rotary blades (3) to rotate for secondary energy dissipation; Fourth step, the tailings slurry after energy dissipation in the third step reaches the blocking mechanism (4), and the baffle (402) blocks the tailings slurry head-on for three times of energy dissipation, and the baffle (402) dissipates energy through the buffer cylinder (401); Fifth step, the tailings slurry after energy dissipation in the fourth step reaches the six-blade plate (5), and the tailings slurry pushes the blades of the six-blade plate (5) to rotate for four times of energy dissipation. At the same time, the tailings slurry impacts the blocking partition (6) head-on to further achieve energy dissipation; In the sixth step, the tailings slurry after energy dissipation in the fifth step flows into the stilling basin (7) through the overflow trough between the baffle plates (6). The tailings solids in the tailings slurry precipitate and accumulate at the bottom of the storage pool (701). In the seventh step, the tailings solids deposited at the bottom of the storage pool (701) are pushed out from the discharge port (704) by the push plate (802) of the cleaning mechanism (8).

2. The processing device according to claim 1, characterized in that, an arc-shaped plate (102) with a free arc structure is provided at the end of the partition plate (101). Fixed frames (103) are symmetrically arranged on both sides inside the partition plate (101). The rotating blades (3) are installed on the fixed frames (103) and are rotatably connected.

3. The processing device according to claim 1, characterized in that, both ends of the buffer mechanism (206) are rotatably connected to the left baffle plate (202) and the right baffle plate (203) respectively. The buffer mechanism (206) includes a housing (2061) with a spring (2062) installed inside. Connecting rods (2063) are arranged at both ends of the housing (2061) and the connecting rods (2063) extend into the housing (2061).

4. The processing device according to claim 1, characterized in that, a filter plate (703) is installed at the water outlet (702).

5. The processing device according to claim 1, characterized in that, the baffle plate (6) has an arc-shaped structure, and the radian of the arc-shaped structure is slightly larger than the movement track of the blades of the six-blade plate (5).

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