Automatic mixed slurry filling system

Abstract

The invention discloses an automatic mixed slurry filling system which comprises a sand silo, a sand silo lifting movable door mechanism, an arc-shaped guide rail, a guide rail supporting lifting device, a sliding mechanism, a spiral conveying blade, a spiral conveying blade baffle, a stirring mixer, a cement silo and a water storage pond. According to the sand silo, the sand discharging structure design of reciprocating motion spiral discharging and layered discharging from top to bottom is adopted, compared with gravity discharging of a traditional vertical sand silo, the automatic sand discharging structure has the advantages that the sand discharging flow can be accurately controlled, meanwhile, the problem that the hydraulic conveying pulping concentration is unstable is solved, and the production efficiency is improved. The automatic discharging structure is mounted on the outer side of the sand silo and inside the sand layer, so that the occupied space is small; during use, the rotating speed of the spiral conveying blade and the moving speed of the sliding mechanism can be controlled, so that the sand discharging flow is adjusted; automatic feeding and automatic mixing of sand and cement paste are achieved, the automation degree is high, and the filling efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine filling, and in particular relates to an automatic filling mixed slurry system. Background Art

[0002] In current mine filling operations, since different filling stages require different slurry ratios, the existing technology usually uses belt conveyors, vertical sand silos through gravity conveying, manual handling, vehicle transportation, hydraulic conveying, etc. to transfer sand from the sand silo to a mixer to mix with cement slurry. Belt conveyors take up a lot of space, and the conditions at the mine construction site are complex. Some sites do not have the conditions to lay belt conveyors. Gravity conveying cannot accurately control the flow of sand, and manual and vehicle handling are inefficient. The high-pressure water flow of hydraulic conveying separates heavier sand particles from lighter sand particles, and the slurry concentration is unstable, affecting the strength after coagulation. At present, there is no automatic slurry mixing and batching equipment dedicated to mine filling. For this reason, it is very necessary to develop an automatic filling mixed slurry system. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide an automated filling mixed slurry system to ensure accurate control of sand flow and improve work efficiency.

[0004] The object of the present invention is achieved in this way, including a sand bin, a sand bin lifting and movable door mechanism, an arc guide rail, a guide rail supporting and lifting device, a sliding mechanism, a spiral conveying blade, a spiral conveying blade baffle, a mixing mixer, a cement bin, and a water reservoir. The sand bin lifting and movable door mechanism is arranged at a discharge port on one side of the sand bin, a guide rail supporting and lifting device is arranged at the bottom of the sand bin, an arc guide rail is arranged horizontally in the sand bin, the arc guide rail is connected to the guide rail supporting and lifting device, the sliding mechanism is slidably matched with the arc guide rail, the sliding mechanism is equipped with a spiral conveying blade driving motor and a spiral conveying blade baffle driving motor, the spiral conveying blade driving motor The motor drives one end of the spiral conveying blade to rotate, and the other end of the spiral conveying blade is connected to the movable door of the sand bin lifting movable door mechanism through a universal joint. The spiral conveying blade baffle driving motor drives one end of the spiral conveying blade baffle to rotate, and the spiral conveying blade baffle is distributed on one side of the spiral conveying blade along the length of the spiral conveying blade, and the spiral conveying blade baffle does not contact the spiral conveying blade. The outer side of the sand bin discharge port is connected to the stirring mixer through a material guide trough, the cement silo is connected to the stirring mixer through a cement slurry conveying pipe, the water reservoir is connected to the cement silo through a water pipe, and the stirring mixer is provided with a mortar discharge pipe.

[0005] Preferably, there are two sand bins, which are semicircular in shape, with the straight sides of the two sand bins corresponding to each other, and the discharge port is located at the center of the straight sides of the sand bins. The arc guide rail is an arc guide rail, and both ends of the arc guide rail correspond to the straight sides of the sand bin; the two semicircular sand bins are used to store different sand materials, such as machine-made sand and tailings, so that the machine-made sand bin and the tailings bin can operate at the same time, and cement slurry is mixed with the two sand materials for filling.

[0006] Preferably, the sliding mechanism comprises a mounting frame, a lower mounting frame, a moving wheel, a positioning wheel group, and a moving wheel driving motor. The lower mounting frame is fixedly mounted on the bottom of the mounting frame, and the arc guide rail passes through the gap between the lower mounting frame and the mounting frame. The positioning wheel groups are respectively arranged at the bottom of the mounting frame and on the lower mounting frame. The two positioning wheel groups correspond to each other up and down. One positioning wheel group slides with the limiting groove on the top surface of the arc guide rail, and the other positioning wheel group slides with the limiting groove on the bottom surface of the arc guide rail. The moving wheel driving motor is arranged in the mounting frame. The moving wheel driving motor drives the moving wheel to rotate. The moving wheel slides with the side surface of the arc guide rail. The spiral conveying blade driving motor is arranged at the top of the mounting frame. The shaft end of the spiral conveying blade passes through the bearing on the side surface of the mounting frame. The spiral conveying blade driving motor is connected to the end of the spiral conveying blade through a spiral bevel gear. The spiral conveying blade baffle driving motor is arranged in the mounting frame, and the power output part of the spiral conveying blade baffle driving motor is provided with a spur gear. The spiral conveying blade baffle is provided with a mounting plate at one end close to the mounting frame, and the shaft of the spiral conveying blade passes through the mounting plate, and the shaft of the spiral conveying blade rotates in cooperation with the mounting plate to ensure that the mounting plate and the spiral conveying blade baffle will not fall off while rotating normally. An arc-shaped rack is fixedly arranged on the outer side of the mounting plate, and the arc-shaped rack is located outside the mounting frame, and the spur gear is meshed with the arc-shaped rack; the positioning wheel group plays a limiting role to enhance the movement stability; the sliding mechanism is limited to the arc guide rail by the positioning wheel group, and the positioning wheel group positions the top and bottom surfaces of the arc guide rail, which can avoid sand on the arc guide rail and affect the sliding of the sliding mechanism, and the operation is reliable; and the internal structure of the sliding mechanism is simple, and the sliding can be controlled by controlling the speed and direction of each motor.

[0007] Among them, the sand bin lifting movable door mechanism is a movable bin door well known to technical personnel in this field, which usually includes a movable bin door arranged at the discharge port and a lifting cylinder connected to the movable bin door (which can be arranged on one side of the movable bin door). The movable bin door is driven to rise and fall by the lifting cylinder. After the bin door is lowered, the discharge port is exposed, and the sand material is discharged through the discharge port.

[0008] The guide rail supporting lifting device can specifically be a cylinder and a support rod, one end of the support rod is connected to the arc guide rail, and the other end is connected to the cylinder. The cylinder drives the support rod to rise and fall, that is, drives the arc guide rail to rise and fall; further preferably, each arc guide rail corresponds to three cylinders and three support rods, which respectively support the two ends and the midpoint of the arc guide rail.

[0009] The above cylinders can specifically use stroke-adjustable cylinders to accurately control the lifting distance.

[0010] There is usually an agitator inside the mixing machine to mix various materials evenly; there is also an agitator inside the cement silo to mix the cement slurry evenly.

[0011] The universal joint is a common connector in this field, usually composed of two hinged joints. One end of the joint is connected to the end of the spiral conveying blade, and the other end is connected to the movable door. On the one hand, the universal joint is used to fix the end of the spiral conveying blade. On the other hand, during the movement of the spiral conveying blade, the universal joint rotates accordingly to ensure the normal movement of the spiral conveying blade.

[0012] Preferably, the guide rail supporting the lifting device is located at the bottom outside the sand bin, and the guide rail supporting the lifting device passes through the bottom of the sand bin and is connected to the arc-shaped guide rail.

[0013] Preferably, the material guide trough is provided with a sand flow meter, the cement slurry delivery pipe is provided with a cement flow meter, and the water pipe is provided with a water flow meter; the flow meter is used to monitor the flow rate and can be used in conjunction with equipment such as solenoid valves to achieve automatic quantitative configuration of the mixed slurry.

[0014] Beneficial effects of the present invention: 1. The sand bin of the present invention adopts a sand material discharging structure design of reciprocating spiral discharging and layered discharging from top to bottom. Compared with the gravity discharging of the traditional vertical sand bin, the sand material discharging flow rate of the present invention is conducive to precise control. On the other hand, it solves the problem of sand material agglomeration and inability to discharge smoothly that has plagued the traditional vertical sand bin for a long time; at the same time, it avoids the problem of unstable concentration of hydraulic conveying slurry, and the automatic discharging structure is installed on the outside of the sand bin and inside the sand layer, and the space occupancy is small; when the present invention is used, the speed of the spiral conveying blade and the moving speed of the sliding mechanism can also be controlled to adjust the sand material discharge flow rate; the present invention realizes automatic feeding and automatic mixing of sand and cement slurry, has a high degree of automation, and improves filling efficiency; 2. The sand bin of the present invention can be arranged in a semicircular double sand bin, so that the machine-made sand bin and the tailings bin can be operated simultaneously, and the cement slurry can be mixed with the two sand materials for filling at the same time; 3. The sliding mechanism of the present invention has a simple structure, strong adaptability of parts, and the internal parts can be replaced at any time. The positioning wheel group and the moving wheel cooperate to form an elastic vibration reduction effect at the contact point with the annular guide rail, which can reduce the loss of internal parts, and the sliding can be controlled by only controlling the speed and direction of each motor; 4. The present invention can also be equipped with various monitoring equipment, such as flow meters, solenoid valves, controllers, etc., to achieve fully automatic quantitative configuration, accurately control the sand-cement mixing ratio, and can adjust the ratio in real time according to the filling plan; the present invention can control the discharging speed through the spiral discharging machine, and perform real-time feedback through each flow meter to ensure the continuity and uniformity of the discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the sliding mechanism; Figure 4 It is a side structural schematic diagram of the sliding mechanism; In the figure: 1-sand bin, 2-sand bin lifting and movable door mechanism, 3-arc guide rail, 4-guide rail supporting lifting device, 5-sliding mechanism, 501-mounting frame, 502-lower mounting frame, 503-moving wheel, 504-positioning wheel group, 505-moving wheel driving motor, 506-bearing, 507-spur gear, 508-arc rack, 509-spiral bevel gear, 6-spiral conveying blade, 7-spiral conveying blade baffle, 8-mixing mixer, 9-cement silo, 10-water reservoir, 11-spiral conveying blade driving motor, 12-spiral conveying blade baffle driving motor, 13-universal joint, 14-material guide trough, 15-cement slurry conveying pipe, 16-water pipe, 17-mortar discharge pipe, 18-mounting plate. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.

[0017] Example 1 As attached Figure 1~Figure 2The automatic filling mixed slurry system of the present embodiment shown in the figure includes a sand bin 1, a sand bin lifting movable door mechanism 2, an arc guide rail 3, a guide rail supporting lifting device 4, a sliding mechanism 5, a spiral conveying blade 6, a spiral conveying blade baffle 7, a mixing mixer 8, a cement bin 9, and a water reservoir 10. The sand bin lifting movable door mechanism 2 is arranged at a discharge port on one side of the sand bin 1, and a guide rail supporting lifting device 4 is arranged at the bottom of the sand bin 1. An arc guide rail 3 is horizontally arranged in the sand bin 1, and the arc guide rail 3 is connected to the guide rail supporting lifting device 4. The sliding mechanism 5 is slidably matched with the arc guide rail 3. The sliding mechanism 5 is equipped with a spiral conveying blade driving motor 11 and a spiral conveying blade baffle driving motor 12. The spiral conveying blade driving motor 11 is provided with a screw conveying blade baffle driving motor 12. The motor 11 drives one end of the spiral conveying blade 6 to rotate, and the other end of the spiral conveying blade 6 is connected to the movable door of the sand bin lifting movable door mechanism 2 through the universal joint 13. The spiral conveying blade baffle driving motor 12 drives one end of the spiral conveying blade baffle 7 to rotate, and the spiral conveying blade baffle 7 is distributed on one side of the spiral conveying blade 6 along the length of the spiral conveying blade 6. The spiral conveying blade baffle 7 does not contact the spiral conveying blade 6. The outer side of the discharge port of the sand bin 1 is connected to the mixing machine 8 through the guide trough 14, the cement bin 9 is connected to the mixing machine 8 through the cement slurry conveying pipe 15, the water reservoir 10 is connected to the cement bin 9 through the water pipe 16, and the mixing machine 8 is provided with a mortar discharge pipe 17; wherein Figure 1 For the top-down angle, Figure 2 It is the upward viewing angle.

[0018] Example 2 The automated filling mixed slurry system of this embodiment is based on Embodiment 1, wherein there are two sand bins 1, which are semicircular in shape, and the straight sides of the two sand bins 1 correspond to each other, and the discharge port is located at the center of the straight side of the sand bin 1, and the arc guide rail 3 is an arc guide rail, and both ends of the arc guide rail 3 correspond to the straight sides of the sand bin 1.

[0019] Example 3 As attached Figure 3 ~Attached Figure 4The automatic filling mixed slurry system of the present embodiment shown is based on the embodiment 2, and the sliding mechanism 5 includes a mounting frame 501, a lower mounting frame 502, a moving wheel 503, a positioning wheel group 504, and a moving wheel driving motor 505. The lower mounting frame 502 is fixedly arranged at the bottom of the mounting frame 501, and the arc guide rail 3 passes through the gap between the lower mounting frame 502 and the mounting frame 501. The positioning wheel group 504 is respectively arranged at the bottom of the mounting frame 501 and on the lower mounting frame 502. The two positioning wheel groups 504 correspond to each other up and down, one positioning wheel group 504 slides with the limiting groove on the top surface of the arc guide rail 3, and the other positioning wheel group 504 slides with the limiting groove on the bottom surface of the arc guide rail 3. The moving wheel driving motor 505 is arranged in the mounting frame 501, and the moving wheel driving motor 505 drives the moving wheel 503 to rotate, and the moving wheel 503 and The side of the arc guide rail 3 is slidably matched, the spiral conveying blade drive motor 11 is arranged on the top of the mounting frame 501, the shaft end of the spiral conveying blade 6 passes through the bearing 506 on the side of the mounting frame 501, the spiral conveying blade drive motor 11 is connected to the end of the spiral conveying blade 6 through the spiral bevel gear 509, the spiral conveying blade baffle drive motor 12 is arranged in the mounting frame 501, the power output part of the spiral conveying blade baffle drive motor 12 is provided with a spur gear 507, the end of the spiral conveying blade baffle 7 close to the mounting frame 501 is provided with a mounting plate 18, the shaft of the spiral conveying blade 6 passes through the mounting plate 18, and the shaft of the spiral conveying blade 6 is rotatably matched with the mounting plate 18, an arc-shaped rack 508 is fixedly provided on the outer side of the mounting plate 18, and the arc-shaped rack 508 is located outside the mounting frame 501, and the spur gear 507 is meshed with the arc-shaped rack 508; The spiral conveying blade driving motor 11 drives the spiral conveying blade 6 to rotate through the spiral bevel gear 509; the spiral conveying blade baffle driving motor 12 drives the spur gear 507 and the arc rack 508 to rotate, so that the spiral conveying blade baffle 7 rotates; the moving wheel driving motor 505 drives the moving wheel 503 to rotate, so that the sliding mechanism 5 moves along the arc guide rail 3, and the upper and lower positioning wheel groups 504 play a limiting role to enhance the movement stability.

[0020] Example 4 The automatic filling mixed slurry system of this embodiment is based on the embodiment 3. The guide rail supporting lifting device 4 is located at the bottom outside the sand bin 1. The guide rail supporting lifting device 4 passes through the bottom of the sand bin 1 and is connected to the arc guide rail 3.

[0021] Example 5 The automatic filling mixed slurry system of this embodiment is based on the embodiment 4, wherein the material guide trough 14 is provided with a sand flow meter, the cement slurry delivery pipe 15 is provided with a cement flow meter, and the water pipe 16 is provided with a water flow meter.

[0022] The working principle and working process of the present invention are as follows: the sliding mechanism 5 reciprocates along the arc guide rail 3, so that the spiral conveying blade 6 moves synchronously, and during the movement, the spiral conveying blade baffle 7 is always located behind the advancing direction of the spiral conveying blade 6; during the movement of the sliding mechanism 5, the spiral conveying blade 6 is driven by the spiral conveying blade driving motor 11 to rotate, and cooperates with the spiral conveying blade baffle 7 to transport the uppermost sand material in the sand bin 1 to the end of the spiral conveying blade 6, and discharges it into the guide trough 14 from the discharge port; during this period, when the sliding mechanism 5 moves to the end of the arc guide rail 3, it moves in the opposite direction, and the spiral conveying blade baffle driving motor 12 drives the spiral conveying blade baffle 7 to rotate to the rear of the spiral conveying blade 6, and the spiral conveying The blade-feeding baffle 7 serves to convey the sand material more smoothly along the conveying direction of the spiral conveying blade 6; then the guide rail support lifting device 4 and the sand bin lifting movable door mechanism 2 are synchronously lowered to the same height, so that the arc-shaped guide rail 3, the spiral conveying blade 6, and the spiral conveying blade baffle 7 are lowered, and the conveying continues during the reciprocating movement and rotation of the spiral conveying blade 6, that is, the sand material is discharged layer by layer into the stirring mixer 8 through the spiral conveying blade 6; when the spiral conveying blade 6 reaches the bottom of the sand bin 1 and the work is completed, the guide rail support lifting device 4 lifts the arc-shaped guide rail 3 to the initial state, and the sand bin lifting movable door mechanism 2 is reset; the sand bin is filled, and the above process is repeated to continue conveying the sand material; The water in the water reservoir 10 is sent to the cement silo 9 through the water pipe 16, and cement slurry is prepared in the cement silo 9; the cement slurry in the cement silo 9 is sent to the mixing mixer 8 through the cement slurry conveying pipe 15; the mixing mixer 8 mixes the cement slurry and sand material evenly, and then discharges it through the mortar discharge pipe 17 for mine filling.

Claims

1. An automated system for filling mixed slurry, comprising a sand bin (1), a sand bin lifting door mechanism (2), an arc guide rail (3), a guide rail support lifting device (4), a sliding mechanism (5), a spiral conveying blade (6), a spiral conveying blade baffle (7), a stirring mixer (8), a cement bin (9), and a water reservoir (10), characterized in that The sand bin lifting movable door mechanism (2) is arranged at a discharge port on one side of the sand bin (1); a guide rail supporting lifting device (4) is arranged at the bottom of the sand bin (1); an arc-shaped guide rail (3) is arranged horizontally in the sand bin (1); the arc-shaped guide rail (3) is connected to the guide rail supporting lifting device (4); the sliding mechanism (5) is slidably matched with the arc-shaped guide rail (3); the sliding mechanism (5) is equipped with a spiral conveying blade driving motor (11) and a spiral conveying blade baffle driving motor (12); the spiral conveying blade driving motor (11) drives one end of the spiral conveying blade (6) to rotate; the other end of the spiral conveying blade (6) is connected to the sand bin lifting movable door mechanism (2) through a universal joint (13). ), the spiral conveying blade baffle driving motor (12) drives one end of the spiral conveying blade baffle (7) to rotate, and the spiral conveying blade baffle (7) is distributed on one side of the spiral conveying blade (6) along the length of the spiral conveying blade (6), and the spiral conveying blade baffle (7) does not contact the spiral conveying blade (6). The outer side of the discharge port of the sand bin (1) is connected to the stirring mixer (8) through a guide trough (14), the cement bin (9) is connected to the stirring mixer (8) through a cement slurry conveying pipe (15), the water reservoir (10) is connected to the cement bin (9) through a water pipe (16), and the stirring mixer (8) is provided with a mortar discharge pipe (17).

2. The automatic filling and mixing slurry system according to claim 1, characterized in that There are two sand bins (1), the sand bins (1) are semicircular, the straight sides of the two sand bins (1) correspond to each other, the discharge port is located at the center of the straight side of the sand bin (1), and the arc guide rail (3) is an arc guide rail, and both ends of the arc guide rail (3) correspond to the straight side of the sand bin (1).

3. The automatic filling and mixing slurry system according to claim 1, characterized in that The sliding mechanism (5) comprises a mounting frame (501), a lower mounting frame (502), a moving wheel (503), a positioning wheel group (504), and a moving wheel driving motor (505); the lower mounting frame (502) is fixedly mounted at the bottom of the mounting frame (501), and the arc-shaped guide rail (3) passes through the gap between the lower mounting frame (502) and the mounting frame (501); the positioning wheel group (504) is respectively arranged at the bottom of the mounting frame (501) and the lower mounting frame (502). On the mounting frame (502), two positioning wheel groups (504) correspond to each other up and down, one positioning wheel group (504) is slidably matched with the limiting groove on the top surface of the arc guide rail (3), and the other positioning wheel group (504) is slidably matched with the limiting groove on the bottom surface of the arc guide rail (3), the moving wheel driving motor (505) is arranged in the mounting frame (501), the moving wheel driving motor (505) drives the moving wheel (503) to rotate, and the moving wheel (503) is slidably matched with the side surface of the arc guide rail (3), and the moving wheel driving motor (505) drives the moving wheel (503) to rotate. The spiral conveying blade drive motor (11) is arranged on the top of the mounting frame (501), the shaft end of the spiral conveying blade (6) passes through the bearing (506) on the side of the mounting frame (501), the spiral conveying blade drive motor (11) is connected to the end of the spiral conveying blade (6) through a spiral bevel gear (509), the spiral conveying blade baffle drive motor (12) is arranged in the mounting frame (501), the power output part of the spiral conveying blade baffle drive motor (12) is provided with a spur gear (507), the spiral conveying blade baffle (7) is provided with a mounting plate (18) at one end close to the mounting frame (501), the shaft of the spiral conveying blade (6) passes through the mounting plate (18), and the shaft of the spiral conveying blade (6) is rotatably matched with the mounting plate (18), an arc-shaped rack (508) is fixedly provided on the outer side of the mounting plate (18), and the arc-shaped rack (508) is located outside the mounting frame (501), and the spur gear (507) is meshed with the arc-shaped rack (508).

4. The automatic filling and mixing slurry system according to claim 1, characterized in that The guide rail supporting lifting device (4) is located at the bottom outside the sand bin (1), and the guide rail supporting lifting device (4) passes through the bottom of the sand bin (1) and is connected to the arc-shaped guide rail (3).

5. The automatic filling and mixing slurry system according to claim 1, characterized in that The material guide trough (14) is provided with a sand flow meter, the cement slurry delivery pipe (15) is provided with a cement flow meter, and the water pipe (16) is provided with a water flow meter.

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