Tailings dry discharge equipment used in iron ore mining
By introducing a conical cylinder and extrusion mechanism into the tailings dry drainage equipment, multi-stage dehydration treatment is achieved, which solves the problem of limited dehydration capacity of existing equipment, and improves the dehydration efficiency and the degree of tailings drying.
Patent Information
- Application Number
- CN202421377055.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-17
AI Technical Summary
During the dehydration treatment of existing tailings dry drainage equipment, the dehydration capacity is limited, and the moisture content of tailings residues is still high, resulting in increased energy loss and difficulty in subsequent treatment.
A tailings dry discharge equipment including a conical cylinder, a driving mechanism and an extrusion mechanism is designed to realize multi-stage dehydration treatment through the centrifugal action of the conical cylinder and the extrusion action of the extrusion mechanism.
It effectively reduces the moisture content of tailings, improves dehydration efficiency, reduces energy loss, and simplifies the subsequent processing process.
Smart Images
Figure CN222715227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tailings dry discharge equipment, in particular to tailings dry discharge equipment used in iron ore mining. Background Art
[0002] During the iron ore mining process, the tailings of the iron ore will contain more water. Since the direct discharge of the tailings slurry will seriously pollute the environment, it is usually necessary to concentrate and dehydrate the tailings slurry to reduce the moisture content of the tailings for dry discharge.
[0003] In the prior art, there is a tailings dry discharge device for iron ore mining with publication number CN218357806U, which includes a dry discharge machine and a screen plate, wherein the screen plate is located inside the dry discharge machine, and a fixed block is fixedly connected to the front side of the dry discharge machine. The scheme solves the problem that the structure between the existing dry discharge machine and the screen plate is not easy to disassemble, and the screen plate is not convenient for the user to clean and maintain the screen plate after use, through the coordinated use of the dry discharge machine, the screen plate, the fixed block, the shell, the groove, the concave hole, the transmission component, the limit component, the slide groove, the slider, the through hole, the inclined groove, the inclined column, the track groove and the track block.
[0004] The above scheme still has some shortcomings. For example, although the tailings slurry can be dehydrated only by the vibration of the screen plate, the basic dehydration treatment can be completed. However, its dehydration treatment capacity is limited. There is still a lot of water in the gaps of the tailings residue, resulting in the tailings residue after treatment still having a high water content. The dehydration efficiency of the tailings slurry is low, which is easy to increase the energy loss during the treatment and affect the subsequent treatment work. In view of this, the utility model proposes a tailings dry discharge equipment for iron ore mining. Utility Model Content
[0005] The purpose of the utility model is to provide tailings dry discharge equipment used in iron ore mining to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: tailings dry discharge equipment used in iron ore mining, including a box body, a barrel body is welded and fixed on the top of the box body, a conical cylinder is provided on the inner side of the barrel body, the upper and lower ends of the conical cylinder both pass through the barrel body and are rotatably connected to the barrel body, an inner cone is provided inside the conical cylinder, a spiral flow channel is provided between the inner cone and the conical cylinder, a driving mechanism for driving the conical cylinder to rotate is provided above the barrel body, an extrusion mechanism is provided inside the box body, the extrusion mechanism includes three groups of evenly distributed extrusion rollers, a guide plate is provided above the extrusion rollers, and a screen plate is provided below the extrusion rollers.
[0007] Preferably, interconnected drainage pipes are installed on the front sides of the box body and the barrel body and near the bottom ends.
[0008] Furthermore, a fixing frame is welded and fixed to the top of the barrel body, a feed pipe is welded and fixed to the top of the fixing frame, the feed pipe passes through the top of the conical cylinder and is rotatably connected to the conical cylinder.
[0009] Preferably, the driving mechanism includes a first pulley and a second pulley, the first pulley and the second pulley are driven by a belt sleeve, the first pulley is fixedly connected to the outer wall of the conical cylinder, the second pulley is rotatably connected to the fixed frame via a rotating shaft, and a first motor with coaxial transmission is provided below the second pulley and inside the fixed frame.
[0010] Furthermore, the bottom of the conical cylinder passes through the box body and is rotatably connected to the box body. A plurality of evenly distributed water-permeable holes are provided on the side wall of the conical cylinder. A diverter rack is installed on the inner side of the conical cylinder near the bottom end.
[0011] Preferably, the squeezing rollers are rotatably connected to the side walls of the box body via a rotating shaft, the three groups of squeezing rollers are driven by gear meshing, a second motor driving the squeezing rollers to rotate is installed on the right side of the box body, and an elastic sleeve is provided on the outer side of the squeezing rollers.
[0012] Furthermore, the guide plates are symmetrically distributed with respect to the center line of the conical cylinder and are fixed to the inner wall of the box body by welding, and the upper surface of the guide plates is provided with radially distributed strip blocks.
[0013] Preferably, the sieve plate is obliquely arranged inside the box and passes through the right side wall of the box, a protective shell is welded and fixed to the top of the sieve plate and located on the right side of the box, and a reflow rack is welded and fixed to the bottom of the sieve plate and located below the protective shell.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The tailings dry discharge equipment used in iron ore mining is equipped with a conical cylinder, a driving mechanism and an extrusion mechanism. The conical cylinder and the driving mechanism cooperate to centrifugally dehydrate the tailings slurry and gradually concentrate the tailings residue. The tailings residue can be further squeezed and dehydrated by the extrusion mechanism to achieve multi-stage dehydration treatment of the tailings slurry, effectively remove moisture from the tailings, and make the treated tailings have an extremely low moisture content, so as to facilitate subsequent treatment of the tailings.
[0016] At the same time, through the cooperation of the diverter frame, the guide plate and the strip block, the tailings residue after centrifugal dehydration can be broken up and the residue can be evenly dropped onto the extrusion mechanism, so that the extrusion mechanism can extrude and dehydrate the residue, further improving its dehydration effect on the tailings residue. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the barrel of the utility model;
[0020] Figure 4 This is a schematic diagram of the conical tube structure of the utility model;
[0021] Figure 5 This is a schematic diagram of the internal structure of the box of the utility model;
[0022] Figure 6 This is a schematic diagram of the extrusion mechanism structure of the utility model.
[0023] In the figure: 1. box body; 11. drain pipe; 2. barrel body; 21. fixing frame; 22. feed pipe; 3. conical cylinder; 31. inner cone; 32. spiral flow channel; 33. water permeable hole; 34. first pulley; 35. second pulley; 36. first motor; 37. diverter frame; 4. extrusion roller; 41. gear; 42. second motor; 43. elastic sleeve; 5. guide plate; 51. strip block; 6. sieve plate; 61. protective shell; 62. reflux frame. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] During the iron ore mining process, the tailings of the iron ore will contain more water. Direct discharge of the tailings slurry will seriously pollute the environment. It is usually necessary to concentrate and dehydrate the tailings slurry to reduce the moisture content of the tailings for dry discharge. The dry discharge equipment provided by the utility model can concentrate and dehydrate the tailings slurry, realize multi-stage dehydration treatment of the tailings slurry, and effectively remove the moisture in the tailings to facilitate subsequent utilization of the tailings. After dehydration, in order to further enhance the drying effect of the tailings, a hot air blower can be installed on the right side of the screen plate to further dry the tailings by hot air, thereby ensuring that the discharged tailings have an extremely low moisture content, so that the tailings can be directly stored or processed and utilized in other forms.
[0026] like Figure 1-Figure 6As shown, the utility model provides a technical solution: tailings dry discharge equipment used in iron ore mining, including a box body 1, a barrel body 2 is welded and fixed on the top of the box body 1, a conical cylinder 3 is provided on the inner side of the barrel body 2, the upper and lower ends of the conical cylinder 3 both pass through the barrel body 2 and are rotatably connected to the barrel body 2, an inner cone 31 is provided inside the conical cylinder 3, a spiral flow channel 32 is provided between the inner cone 31 and the conical cylinder 3, a driving mechanism for driving the conical cylinder 3 to rotate is provided above the barrel body 2, an extrusion mechanism is provided inside the box body 1, the extrusion mechanism includes three groups of evenly distributed extrusion rollers 4, a guide plate 5 is provided above the extrusion rollers 4, and a screen plate 6 is provided below the extrusion rollers 4.
[0027] During the treatment process, the tailings slurry flows into the interior of the conical cylinder 3, and flows downward along the spiral flow channel 32, so that the tailings are gradually concentrated and centrifugal force is generated to preliminarily separate the water and residue in the tailings slurry. After that, the conical cylinder 3 is driven to rotate by the driving mechanism to further enhance the centrifugal effect of the conical cylinder 3, and the tailings are concentrated while further removing the water in the tailings. After that, the tailings fall into the interior of the box body 1 through the conical cylinder 3, and after being guided by the guide plate 5, the tailings residue falls to both sides of the middle squeezing roller 4, so that the three groups of squeezing rollers 4 cooperate with each other to squeeze the tailings, so that the water in the residue is further removed, and the water body flows into the bottom of the box body 1 through the screen plate 6, so that the dehydrated tailings residue is discharged outward through the screen plate 6, so as to facilitate the subsequent treatment of the tailings residue.
[0028] A connected drainage pipe 11 is installed on the front side of the box body 1 and the barrel body 2 and near the bottom end, so as to discharge the separated water and facilitate the centralized treatment of the wastewater.
[0029] like Figure 2-Figure 4 As shown, a fixing frame 21 is welded and fixed to the top of the barrel body 2, and a feed pipe 22 is welded and fixed to the top of the fixing frame 21. The feed pipe 22 passes through the top of the conical cylinder 3 and is rotatably connected to the conical cylinder 3 to facilitate the rotation of the conical cylinder 3 to centrifuge the tailings slurry.
[0030] The driving mechanism includes a first pulley 34 and a second pulley 35, and the first pulley 34 and the second pulley 35 are connected by a belt sleeve. The first pulley 34 is fixedly connected to the outer wall of the conical cylinder 3, and the second pulley 35 is rotatably connected to the fixed frame 21 through a rotating shaft. A first motor 36 with coaxial transmission is provided below the second pulley 35 and inside the fixed frame 21.
[0031] The bottom of the conical tube 3 passes through the box body 1 and is rotatably connected to the box body 1. A plurality of evenly distributed water-permeable holes 33 are opened on the side wall of the conical tube 3. A diverter frame 37 is installed on the inner side of the conical tube 3 and near the bottom end.
[0032] When the tailings slurry flows downward along the spiral flow channel 32, the first motor 36 operates, and is transmitted through the first pulley 34 and the second pulley 35, driving the conical cylinder 3 to rotate, so that the conical cylinder 3 centrifuges the tailings slurry, allowing water to flow into the barrel body 2 through the water-permeable holes 33, and causing the residue in the tailings to gradually concentrate and aggregate. After that, the tailings residue falls onto the diverter rack 37, and the diverter rack 37 breaks up the tailings residue so that the residue can fall evenly onto the guide plate 5, making it convenient for the extrusion mechanism to extrude and dehydrate the residue.
[0033] like Figure 5 and Figure 6 As shown, the squeezing rollers 4 are rotatably connected to the side wall of the box body 1 through a rotating shaft, and the three groups of squeezing rollers 4 are meshed and transmitted through gears 41. A second motor 42 for driving the squeezing rollers 4 to rotate is installed on the right side of the box body 1, and an elastic sleeve 43 is provided on the outer side of the squeezing rollers 4.
[0034] The second motor 42 is operated to drive the middle squeezing roller 4 to rotate. Through the meshing transmission of the gear 41, the three groups of squeezing rollers 4 can be driven to rotate simultaneously, thereby squeezing and dehydrating the tailings residue. During dehydration, the second motor 42 is controlled to rotate forward and reverse in different time periods, so that the squeezing direction of the squeezing roller 4 is continuously changed to improve the squeezing effect on the tailings residue. At the same time, the elastic sleeve 43 is made of a rubber material with good wear resistance. During the extrusion process, the elastic sleeve 43 can undergo a certain elastic deformation, which can further enhance the squeezing effect on the tailings residue.
[0035] The guide plate 5 is symmetrically distributed with respect to the center line of the conical cylinder 3 and is welded and fixed to the inner wall of the box body 1. The upper surface of the guide plate 5 is provided with radially distributed strip blocks 51. The guide plate 5 and the strip blocks 51 cooperate with each other to disperse the tailings residue falling from the conical cylinder 3, so that the extrusion mechanism can extrude the tailings residue.
[0036] The sieve plate 6 is obliquely arranged inside the box body 1 and passes through the right side wall of the box body 1. A number of evenly distributed sieve holes are opened on the sieve plate 6, so that the squeezed water can fall into the bottom of the box body 1 through the sieve holes. A protective shell 61 is welded and fixed to the top of the sieve plate 6 and located on the right side of the box body 1. A reflux rack 62 is welded and fixed to the bottom of the sieve plate 6 and located below the protective shell 61. The dehydrated tailings residue can be discharged outward through the sieve plate 6. During discharge, the protective shell 61 protects the outer side of the sieve plate 6 to prevent the residue from falling. The water mixed in the residue can fall into the interior of the box body 1 through the reflux rack 62.
[0037] Working principle: First, the tailings slurry is transported to the inside of the conical cylinder 3 through the feed pipe 22, and the inner cone 31 disperses and guides the tailings slurry, so that the tailings slurry falls evenly into the spiral flow channel 32, and the tailings slurry flows downward along the spiral flow channel 32. Then, the first motor 36 is operated, and the first pulley 34 and the second pulley 35 are used for transmission to drive the conical cylinder 3 to rotate, so that the conical cylinder 3 centrifuges the tailings slurry, and the water flows into the barrel 2 through the water permeable hole 33, and the residue in the tailings is gradually concentrated and aggregated. Then, the tailings residue is broken up by the diverter frame 37 and falls evenly onto the guide plate 5. After being guided by the guide plate 5 and the strip block 51, the tailings residue falls evenly to both sides of the middle squeezing roller 4;
[0038] Furthermore, the second motor 42 is operated to drive the middle squeezing roller 4 to rotate, and the three groups of squeezing rollers 4 are driven to rotate simultaneously after the gear 41 is meshed and transmitted, and the tailings residue is squeezed and dehydrated, so that the water flows into the box body 1 through the sieve holes on the sieve plate 6, and the dehydrated tailings residue is discharged through the sieve plate 6, which is convenient for subsequent processing.
[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.
Claims
1. A tailings dry discharge device for iron ore mining, comprising a box body (1), a barrel body (2) being welded and fixed to the top of the box body (1), characterized in that: A conical cylinder (3) is provided on the inner side of the barrel body (2), the upper and lower ends of the conical cylinder (3) both pass through the barrel body (2) and are rotatably connected to the barrel body (2), an inner cone (31) is provided inside the conical cylinder (3), a spiral flow channel (32) is provided between the inner cone (31) and the conical cylinder (3), a driving mechanism for driving the conical cylinder (3) to rotate is provided above the barrel body (2), an extrusion mechanism is provided inside the box body (1), the extrusion mechanism comprises three groups of evenly distributed extrusion rollers (4), a guide plate (5) is provided above the extrusion rollers (4), and a screen plate (6) is provided below the extrusion rollers (4).
2. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: A communicating drainage pipe (11) is installed on the front side of the box body (1) and the barrel body (2) and near the bottom end.
3. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: A fixing frame (21) is welded and fixed to the top of the barrel body (2), and a feeding pipe (22) is welded and fixed to the top of the fixing frame (21). The feeding pipe (22) passes through the top of the conical cylinder (3) and is rotatably connected to the conical cylinder (3).
4. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: The driving mechanism comprises a first belt pulley (34) and a second belt pulley (35), wherein the first belt pulley (34) and the second belt pulley (35) are connected by a belt sleeve for transmission, the first belt pulley (34) is fixedly connected to the outer wall of the conical cylinder (3), the second belt pulley (35) is rotatably connected to the fixing frame (21) via a rotating shaft, and a first motor (36) with coaxial transmission is provided below the second belt pulley (35) and inside the fixing frame (21).
5. The tailings dry discharge equipment used in iron ore mining according to claim 4, characterized in that: The bottom of the conical cylinder (3) passes through the box body (1) and is rotatably connected to the box body (1). A plurality of evenly distributed water-permeable holes (33) are provided on the side wall of the conical cylinder (3). A flow distribution frame (37) is installed on the inner side of the conical cylinder (3) near the bottom end.
6. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: The squeezing rollers (4) are rotatably connected to the side walls of the box body (1) via a rotating shaft, and the three groups of squeezing rollers (4) are meshed and driven by gears (41). A second motor (42) for driving the squeezing rollers (4) to rotate is installed on the right side of the box body (1), and an elastic sleeve (43) is provided on the outer side of the squeezing rollers (4).
7. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: The guide plates (5) are symmetrically distributed about the center line of the conical cylinder (3) and are fixed to the inner wall of the box body (1) by welding. The upper surface of the guide plates (5) is provided with radially distributed strip blocks (51).
8. The tailings dry discharge equipment used in iron ore mining according to claim 1, characterized in that: The sieve plate (6) is obliquely arranged inside the box body (1) and penetrates the right side wall of the box body (1); a protective shell (61) is welded and fixed to the top of the sieve plate (6) and located on the right side of the box body (1); and a reflow rack (62) is welded and fixed to the bottom of the sieve plate (6) and located below the protective shell (61).