Dry discharge device for fine sand recovery tailings

Abstract

The utility model relates to the technical field of tailing treatment, and discloses a fine sand recovery tailing dry discharge device which comprises a sand screening box, a stirring mechanism is jointly inserted and movably connected between the middle of the front box wall and the middle of the rear box wall of the sand screening box, and reinforcing rods are fixedly connected to the upper portion of the left end and the upper portion of the right end of the stirring mechanism. Two buffer mechanisms are fixedly connected to each of the front part and the rear part of the upper end of the sand screening box, a dewatering screen is jointly and fixedly connected among the four buffer mechanisms, a screen is jointly and fixedly connected between the upper part of the left box wall and the upper part of the right box wall of the sand screening box, and a slurry pump is fixedly connected to the middle part of the lower end of the sand screening box in a penetrating manner. According to the fine sand recovery tailing dry discharge device, the mobility of mortar is improved by arranging the stirring mechanism, the pumping speed of the slurry pump is increased, the buffering and damping effects on the dewatering screen can be enhanced by arranging the buffering mechanism, the service life of the device is prolonged, and the fine sand recovery tailing dry discharge device is suitable for being widely used.

Description

Technical Field

[0001] The utility model relates to the technical field of tailings treatment, in particular to a fine sand recovery tailings dry discharge device. Background Art

[0002] Tailings dry discharge is a new tailings disposal process, which means that the tailings slurry output from the mineral processing process is concentrated and then treated by dewatering equipment such as dewatering screens to form slag with low water content, easy precipitation and solidification, and can be stored on site. The slag can be transported to a fixed location for dry storage. There are at least the following disadvantages in the use of existing tailings dry discharge devices: 1. Due to the different particle sizes of fine sand, when the slurry pump extracts the slurry, the larger fine sand particles are easy to block the pipeline, and the fine sand will form a thicker sand layer after settling at the bottom of the device, resulting in a slower extraction speed of the slurry pump, affecting work efficiency; 2. When the existing tailings dry discharge device is in use, the overall stability and vibration resistance of the device are poor, resulting in damage to the device under the vibration of the dewatering screen, affecting the service life of the device. Therefore, we have introduced a fine sand recovery tailings dry discharge device. Utility Model Content

[0003] The main purpose of the utility model is to provide a fine sand recovery tailings dry discharge device, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A fine sand recovery tailings dry discharge device comprises a sand screening box, a stirring mechanism is movably connected interspersed between the middle of the front box wall and the middle of the rear box wall of the sand screening box, the upper left end and the upper right end of the stirring mechanism are fixedly connected with reinforcement rods, the upper front end and the upper rear end of the sand screening box are fixedly connected with two buffer mechanisms, a dewatering screen is fixedly connected between four buffer mechanisms, a screen is fixedly connected between the upper left box wall and the upper right box wall of the sand screening box, a slurry pump is interspersed and fixedly connected to the middle of the lower end of the sand screening box, and a cyclone is interspersed and fixedly connected to the middle of the right end of the slurry pump.

[0006] Preferably, the stirring mechanism includes a driver, the output end of the driver passes through the front box wall of the sand screening box and is fixedly connected to a driving shaft, a plurality of knocking blocks are inserted and fixedly connected to the front front and rear parts of the outer surface of the driving shaft, the middle part of the outer surface of the driving shaft is movably connected to a fixed box through a bearing, and the front and rear ends of the driving shaft are movably connected to the front box wall and rear box wall of the sand screening box respectively through bearings.

[0007] Preferably, a first bevel gear is inserted and fixedly connected in the middle of the outer surface of the driving shaft, a stirring shaft is inserted and movably connected in the middle of the lower box wall of the fixed box through a bearing, a second bevel gear is inserted and fixedly connected in the upper end of the stirring shaft, a plurality of stirring blades are inserted and fixedly connected in the upper part of the outer surface of the stirring shaft, and a spiral blade is fixedly connected in the lower part of the outer surface of the stirring shaft.

[0008] Preferably, the second bevel gear and the first bevel gear are both located inside the fixed box and mesh with each other, and the lengths of the plurality of stirring blades decrease sequentially from top to bottom.

[0009] Preferably, the buffer mechanism includes a support frame, a buffer frame is movably connected through the middle of the upper frame wall of the support frame, the upper end of the buffer frame is fixedly connected to a fixing seat, and the rear end of the fixing seat is fixedly connected to the front end of the dewatering screen, the left and right parts of the upper frame wall of the buffer frame and the left and right parts of the lower end are fixedly connected with buffer springs, and the lower ends of the two upper buffer springs and the lower ends of the two upper buffer springs are respectively fixedly connected to the upper end and the lower frame wall of the support frame, a shock absorber is fixedly connected between the middle part of the lower frame wall of the support frame and the middle part of the lower end of the buffer frame, and the lower end of the support frame is fixedly connected to the upper end of the sand screening box.

[0010] Preferably, the support frame is configured as a U-shaped structure, the buffer frame is configured as an I-shaped structure, the fixing seat is configured as a trapezoidal structure, and the fixing seat and the dewatering screen are connected by welding.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the utility model, a stirring mechanism is provided, and a driving shaft is driven to rotate by a driver, so that the striking block strikes the screen, and fine sand with larger particles can be screened out to avoid clogging the pipeline. Then, through the meshing transmission between the first bevel gear and the second bevel gear, a plurality of stirring blades and spiral blades stir the mortar, which can increase the fluidity of the mortar, speed up the extraction speed of the slurry pump, and improve the working efficiency.

[0013] 2. In the utility model, by setting a buffer mechanism, the dewatering screen generates vibration when working to push the buffer frame downward, and then the buffer frame can be buffered and shock-absorbed through the elasticity of four buffer springs, and then the shock absorber can be used to absorb shock again and suppress repeated rebound, so as to enhance the buffering and shock-absorbing effect of the dewatering screen, thereby enhancing the overall stability and vibration resistance of the device and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a fine sand recovery tailings dry discharge device of the utility model;

[0015] Figure 2This is a schematic diagram of the overall structure of a stirring mechanism of a fine sand recovery tailings dry discharge device of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall cross-section structure of a fixed box of a fine sand recovery tailings dry discharge device of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of a buffer mechanism of a fine sand recovery tailings dry discharge device.

[0018] In the figure: 1. sand screening box; 2. stirring mechanism; 3. reinforcement rod; 4. buffer mechanism; 5. dewatering screen; 6. screen; 7. slurry pump; 8. cyclone; 21. driver; 22. drive shaft; 23. knocking block; 24. fixed box; 25. first bevel gear; 26. stirring shaft; 27. second bevel gear; 28. stirring blade; 29. ​​spiral blade; 41. support frame; 42. buffer frame; 43. fixed seat; 44. buffer spring; 45. shock absorber. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A fine sand recovery tailings dry discharge device comprises a sand screening box 1, a stirring mechanism 2 is movably connected interspersed between the middle of the front box wall and the middle of the rear box wall of the sand screening box 1, a reinforcing rod 3 is fixedly connected to the upper left end and the upper right end of the stirring mechanism 2, two buffer mechanisms 4 are fixedly connected to the upper front end and the upper rear end of the sand screening box 1, a dewatering screen 5 is fixedly connected between the four buffer mechanisms 4, a screen 6 is fixedly connected between the upper left box wall and the upper right box wall of the sand screening box 1, a slurry pump 7 is interspersed and fixedly connected to the middle of the lower end of the sand screening box 1, and a cyclone 8 is interspersed and fixedly connected to the middle of the right end of the slurry pump 7.

[0024] In this embodiment, the stirring mechanism 2 includes a driver 21, the output end of the driver 21 passes through the front box wall of the sand screening box 1 and is fixedly connected to a driving shaft 22, a plurality of knocking blocks 23 are inserted and fixedly connected to the front and rear parts of the outer surface of the driving shaft 22, and a fixed box 24 is movably connected to the middle part of the outer surface of the driving shaft 22 through a bearing, and the front and rear ends of the driving shaft 22 are movably connected to the front box wall and the rear box wall of the sand screening box 1 respectively through bearings; a first bevel gear 25 is inserted and fixedly connected to the middle part of the outer surface of the driving shaft 22, and the middle part of the lower box wall of the fixed box 24 is inserted and fixedly connected to the middle part of the lower box wall of the fixed box 24 through a shaft The bearing is movably connected with a stirring shaft 26, the upper end of the stirring shaft 26 is fixedly connected with a second bevel gear 27, the upper part of the outer surface of the stirring shaft 26 is fixedly connected with a plurality of stirring blades 28, and the lower part of the outer surface of the stirring shaft 26 is fixedly connected with a spiral blade 29; the second bevel gear 27 and the first bevel gear 25 are both located inside the fixed box 24 and mesh with each other, so that the fixed box 24 protects the sand screening box 1 and the first bevel gear 25, and the lengths of the plurality of stirring blades 28 are reduced from top to bottom, so that the plurality of stirring blades 28 are consistent with the shape of the lower part of the outer surface of the sand screening box 1.

[0025] In this embodiment, the buffer mechanism 4 includes a support frame 41, a buffer frame 42 is movably connected through the middle of the upper frame wall of the support frame 41, a fixed seat 43 is fixedly connected to the upper end of the buffer frame 42, and the rear end of the fixed seat 43 is fixedly connected to the front end of the dewatering screen 5, the left and right parts of the upper frame wall of the buffer frame 42 and the lower left and right parts are fixedly connected with buffer springs 44, and the lower ends of the two upper buffer springs 44 and the lower ends of the two upper buffer springs 44 are respectively fixedly connected to the upper end and the lower frame wall of the support frame 41, a shock absorber 45 is fixedly connected between the middle part of the lower frame wall of the support frame 41 and the middle part of the lower end of the buffer frame 42, and the lower end of the support frame 41 is fixedly connected to the upper end of the sand screening box 1; the support frame 41 is set to a U-shaped structure, the buffer frame 42 is set to an I-shaped structure, the fixed seat 43 is set to a trapezoidal structure, and the connection method of the fixed seat 43 and the dewatering screen 5 is welding, so that the fixed seat 43 and the dewatering screen 5 are firmly connected.

[0026] It should be noted that the utility model is a tailings dry discharge device for recovering fine sand. During use, the tailings slurry is first poured into the sand screening box 1, and the tailings slurry can be screened through the screen 6. Then the driver 21 is started to make the driving shaft 22 drive the plurality of knocking blocks 23 to rotate, so that the plurality of knocking blocks 23 knock the screen 6, which can screen out the fine sand with larger particles in the tailings slurry to prevent it from clogging the pipeline, and through the meshing transmission between the first bevel gear 25 and the second bevel gear 27, the stirring shaft 26 drives the plurality of stirring blades 28 and spiral blades 29 thereon to rotate, so that the tailings slurry can be fully stirred, the fluidity of the slurry can be increased, and the fine sand can be prevented from settling at the bottom of the sand screening box 1 to form a thicker sand layer, thereby speeding up the extraction of the tailings slurry by the slurry pump 7. The speed of taking is improved, and the working efficiency is also improved. Then, the slurry pump 7, the cyclone 8 and the dewatering screen 5 are started in sequence, so that the slurry pump 7 draws slurry and transports it to the cyclone 8. After separation treatment in the cyclone 8, the fine sand is sprayed into the dewatering screen 5 for dehydration treatment to realize the dry discharge of tailings for fine sand recovery. The dewatering screen 5 will vibrate during operation, so that the fixed seat 43 pushes the buffer frame 42 downward, and then the elasticity of the four buffer springs 44 can be used to buffer and damp the dewatering screen 5, and then the shock absorber 45 can be used to dampen the dewatering screen 5 again, and the repeated rebound of the dewatering screen 5 can be suppressed, so as to enhance the buffering and damping effect of the dewatering screen 5, thereby enhancing the overall stability and vibration resistance of the device, making the sand screening box 1 not easily damaged by vibration, and extending the service life of the device.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fine sand recovery tailings dry discharge device, comprising a sand screening box (1), characterized in that: A stirring mechanism (2) is interspersed and movably connected between the middle of the front box wall and the middle of the rear box wall of the sand screening box (1); the upper left end and the upper right end of the stirring mechanism (2) are fixedly connected to a reinforcement rod (3); the upper front end and the upper rear end of the sand screening box (1) are fixedly connected to two buffer mechanisms (4); a dewatering screen (5) is fixedly connected between the four buffer mechanisms (4); a screen (6) is fixedly connected between the upper left box wall and the upper right box wall of the sand screening box (1); a slurry pump (7) is interspersed and fixedly connected to the middle of the lower end of the sand screening box (1); and a cyclone (8) is interspersed and fixedly connected to the middle of the right end of the slurry pump (7); The stirring mechanism (2) comprises a driver (21), the output end of the driver (21) passes through the front box wall of the sand screening box (1) and is fixedly connected to a driving shaft (22), a plurality of striking blocks (23) are inserted and fixedly connected to the front and rear parts of the outer surface of the driving shaft (22), a fixed box (24) is inserted and movably connected to the middle part of the outer surface of the driving shaft (22) via a bearing, and the front and rear ends of the driving shaft (22) are movably connected to the front box wall and the rear box wall of the sand screening box (1) respectively via bearings.

2. A fine sand recovery tailings dry discharge device according to claim 1, characterized in that: A first bevel gear (25) is inserted and fixedly connected to the middle of the outer surface of the driving shaft (22); a stirring shaft (26) is inserted and movably connected to the middle of the lower box wall of the fixed box (24) via a bearing; a second bevel gear (27) is inserted and fixedly connected to the upper end of the stirring shaft (26); a plurality of stirring blades (28) are inserted and fixedly connected to the upper portion of the outer surface of the stirring shaft (26); and a spiral blade (29) is fixedly connected to the lower portion of the outer surface of the stirring shaft (26).

3. A fine sand recovery tailings dry discharge device according to claim 2, characterized in that: The second bevel gear (27) and the first bevel gear (25) are both located inside the fixed box (24) and mesh with each other, and the lengths of the plurality of stirring blades (28) decrease sequentially from top to bottom.

4. A fine sand recovery tailings dry discharge device according to claim 1, characterized in that: The buffer mechanism (4) comprises a support frame (41), a buffer frame (42) is inserted and movably connected to the middle part of the upper frame wall of the support frame (41), the upper end of the buffer frame (42) is fixedly connected to a fixing seat (43), and the rear end of the fixing seat (43) is fixedly connected to the front end of the dewatering screen (5), the left part and the right part of the upper frame wall and the left part and the right part of the lower end of the buffer frame (42) are fixedly connected to buffer springs (44), and the lower ends of the two upper buffer springs (44) and the lower ends of the two upper buffer springs (44) are respectively fixedly connected to the upper end and the lower frame wall of the support frame (41), a shock absorber (45) is fixedly connected between the middle part of the lower frame wall of the support frame (41) and the middle part of the lower end of the buffer frame (42), and the lower end of the support frame (41) is fixedly connected to the upper end of the sand screening box (1).

5. A fine sand recovery tailings dry discharge device according to claim 4, characterized in that: The support frame (41) is configured as a U-shaped structure, the buffer frame (42) is configured as an I-shaped structure, the fixing seat (43) is configured as a trapezoidal structure, and the fixing seat (43) and the dewatering screen (5) are connected by welding.

Images