Coal slime grading pulping machine
By designing a coal slime graded pulping machine with overflow cavity and overflow gap, combined with the mixing and crushing functions, the problems of low pulping efficiency and inability to classify existing equipment are solved, and efficient coal slime treatment and grading are achieved, improving the improvement of Resource utilization efficiency.
Patent Information
- Application Number
- CN202420721429.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Existing equipment has little effect and low efficiency in the sludge pulping process, so it cannot classify and remove impurities, resulting in low resource utilization efficiency and increased pollutant emissions.
A coal slime graded pulping machine is designed, including a cylinder and an inner cylinder. The cylinder has an overflow cavity and an inner cylinder has an overflow gap and an overflow port. Through the stirring action of the stirring member, the mixed coal slime is made from The overflow port flows out, and the unmixed material is stirred again, combining the conical projection and impeller crushing and separation of coal blocks to achieve efficient pulping and grading.
It improves the pulping efficiency and coal slime grading effect, enhances the processing capacity of coal slime, reduces solid waste emissions, and promotes the efficient and clean utilization of coal resources.
Smart Images
Figure CN222219196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal slime classification pulping, and specifically relates to a coal slime classification pulping machine. Background Art
[0002] As a by-product of the coal preparation plant, tailings slime has high ash content, low calorific value, fine particle size and high viscosity. It cannot be directly used for combustion in power plants. When used for civilian combustion, it produces a large amount of dust, sulfur dioxide and other air pollutants, and the economic benefits are limited. Realizing the resource utilization of tailings slime not only increases the economic benefits of the coal preparation plant, but also increases the efficiency of coal resource utilization, reduces solid waste emissions, and is conducive to promoting the efficient and clean utilization of coal resources and achieving energy conservation and environmental protection goals. However, the existing equipment has little effect on pulping, the pulping efficiency is low, and it is impossible to grade and remove impurities from the coal slime. Utility Model Content
[0003] The utility model provides a coal slime classification pulping machine, which solves the problems in the related technology that the pulping effect is small, the pulping efficiency is low, and the coal slime cannot be classified and impurities removed.
[0004] The technical solution of the utility model is as follows:
[0005] A coal slime classification pulping machine, comprising:
[0006] A cylinder having an overflow cavity;
[0007] An inner cylinder is arranged in the overflow cavity, the inner cylinder and the cylinder body form an overflow gap and an overflow port, the bottom of the inner cylinder has a flow port, the flow port is connected to the overflow gap, and the overflow port is used to flow out the coal slime;
[0008] The stirring member is rotatably arranged on the cylinder and is located in the overflow cavity. After the stirring member stirs, the dispersed coal sludge flows out from the overflow port.
[0009] As a further technical solution, the inner tube has an end cover, and the end cover has a feed port and an observation port.
[0010] As a further technical solution, the stirring member comprises:
[0011] A rotating shaft, rotatably disposed on the cylinder;
[0012] A driving unit, disposed on the cylinder, and configured to drive the rotating shaft to rotate;
[0013] The impeller is arranged on the rotating shaft, and the rotating shaft drives the impeller to rotate when it rotates.
[0014] As a further technical solution, the inner wall of the cylinder has a plurality of conical protrusions, and the conical protrusions are used to crush coal blocks.
[0015] As a further technical solution, the bottom of the cylinder is provided with a discharge port, and the discharge port is used to discharge lumpy coal blocks.
[0016] As a further technical solution, the inner cylinder is formed by splicing a truncated cone and a cylinder, the cylinder and the smaller end of the truncated cone are spliced together, and the diameter of the cylindrical section is 1 / 3-2 / 3 of the diameter of the cylinder body.
[0017] As a further technical solution, the inner cylinder has a plurality of circulation holes, the diameter of the circulation holes is 10mm-100mm, and the ratio of the area of the plurality of circulation holes to the area of the outer wall of the inner cylinder is 0.2-0.5.
[0018] As a further technical solution, the diameter of the impeller is 1 / 4-1 / 2 of the diameter of the cylinder, and the rotation speed of the impeller is 100-1000r / min.
[0019] As a further technical solution, the classification particle size is adjusted by the amount of feed water or the amount of underflow discharge.
[0020] The working principle and beneficial effects of the utility model are:
[0021] In the utility model, since the existing equipment has little effect on pulping during the pulping process, the pulping efficiency is low, and the coal slime cannot be graded and impurities removed, the present scheme is provided with a cylinder and an inner cylinder, the cylinder has an overflow cavity, the inner cylinder has an overflow gap and an overflow port, the coal slime that is evenly mixed with the stirring of the stirring element flows out from the overflow port, while the material that is not evenly mixed has a large density and will not flow out from the overflow port with the stirring of the stirring element, and will fall into the overflow cavity again for stirring, which has a high pulping efficiency, and the material that is not completely mixed cannot flow out from the overflow port, and has the effect of grading the coal slime. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] In the figure: 1. cylinder, 2. overflow cavity, 3. inner cylinder, 4. overflow port, 5. flow port, 6. overflow gap, 7. stirring element, 8. end cover, 9. inlet, 10. observation port, 11. rotating shaft, 12. driving unit, 13. impeller, 14. conical protrusion, 15. discharge port, 16. frustum section, 17. cylindrical section, 18. circulation hole. DETAILED DESCRIPTION
[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, they can also be understood as further technical solutions without paying creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0026] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 indirectly connected 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 this utility model can be understood according to specific circumstances.
[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0028] Example
[0029] Reference Figure 1 , is an embodiment of the utility model, and proposes
[0030] A coal slime grading pulping machine comprises: a cylinder 1, the cylinder 1 having an overflow cavity 2; an inner cylinder 3 arranged in the overflow cavity 2, the inner cylinder 3 and the cylinder 1 forming an overflow gap 6 and an overflow port 4, the inner cylinder 3 having a flow port 5 at the bottom, the flow port 5 being connected to the overflow gap 6, and the overflow port 4 being used for flowing out the coal slime; a stirring member 7 rotatably arranged on the cylinder 1, located in the overflow cavity 2, and after stirring by the stirring member 7, the dispersed coal slime flows out from the overflow port 4.
[0031] In this embodiment, since the existing equipment has little effect on pulping during the pulping process, the pulping efficiency is low, and the coal slime cannot be graded and impurities removed, the present solution is provided with a cylinder 1 and an inner cylinder 3, the cylinder 1 has an overflow cavity 2, the inner cylinder 3 has an overflow gap 6 and an overflow port 4, and the coal slime that is evenly mixed with the stirring of the stirring element 7 flows out from the overflow port 4, while the material that is not evenly mixed has a large density and will not flow out from the overflow port 4 with the stirring of the stirring element 7, and will fall into the overflow cavity 2 again for stirring, which has a high pulping efficiency, and the material that is not completely mixed cannot flow out from the overflow port 4, and has the effect of grading the coal slime.
[0032] Furthermore, the inner tube 3 has an end cover 8 , and the end cover 8 has a feed port 9 and an observation port 10 .
[0033] In this embodiment, the inner cylinder 3 has an end cover 8, and the end cover 8 is provided with a feed port 9 and an observation port 10. Material can be added through the feed port 9, and the stirring and grading of the material in the inner cylinder 3 can be observed through the observation port 10, so that whether material addition is needed can be monitored in real time.
[0034] Furthermore, the stirring member 7 includes: a rotating shaft 11 rotatably arranged on the cylinder 1; a driving unit 12 arranged on the cylinder 1, and the driving unit 12 is used to drive the rotating shaft 11 to rotate; an impeller 13 arranged on the rotating shaft 11, and the rotating shaft 11 drives the impeller 13 to rotate after the rotating shaft 11 rotates.
[0035] In this embodiment, a driving unit 12 is provided on the cylinder 1, and the driving unit 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the impeller 13 to rotate. After the impeller 13 stirs, a vortex is formed, and the coal slime with a smaller density will swirl upward, so that the evenly mixed material can flow out from the overflow port 4, while the material with a larger density will not flow out from the overflow port 4, and return to the overflow cavity 2. With the stirring of the impeller 13, the material is more mixed, and the impeller 13 has the function of breaking the coal blocks during its rotation, so that large pieces of coal blocks can be broken, thereby reducing the process of coal slime molding and improving the mixing efficiency.
[0036] Furthermore, the inner wall of the cylinder 1 has a plurality of conical protrusions 14, and the conical protrusions 14 are used to crush coal blocks.
[0037] In this embodiment, in order to further crush the coal lumps, a plurality of conical protrusions 14 are provided on the inner wall of the cylinder 1. The coal lumps are crushed by the plurality of conical protrusions 14, thereby further increasing the efficiency of coal slime forming.
[0038] Furthermore, the bottom of the cylinder 1 is provided with a discharge port 15, and the discharge port 15 is used to discharge the lumpy coal.
[0039] In this embodiment, the coal blocks that are not completely mixed can be discharged through the discharge port 15 provided at the bottom of the cylinder 1.
[0040] Furthermore, the inner cylinder 3 is formed by splicing a cone 16 and a cylinder 17 , and the cylinder 17 is spliced with the smaller end of the cone 16 , and the diameter of the cylinder 17 is 1 / 3-2 / 3 of the diameter of the cylinder body 1 .
[0041] In this embodiment, the inner tube 3 of this scheme is divided into a cone 16 and a cylinder 17. The cone 16 and the cylinder 17-shaped inner tube 3 help the coal slime to form a vortex as the impeller 13 rotates, and has a better separation effect. Within the range of 1 / 3-2 / 3, the space allocation in the overflow cavity 2 is most reasonable, and the maximum processing capacity and pulping effect can be obtained with the minimum power consumption.
[0042] Furthermore, the inner cylinder 3 has a plurality of circulation holes 18, the diameter of the circulation holes 18 is 10 mm-100 mm, and the ratio of the area of the plurality of circulation holes 18 to the area of the outer wall of the inner cylinder 3 is 0.2-0.5.
[0043] In this embodiment, the water outside the inner cylinder 3 needs to be circulated back to the inner cylinder 3. The water inlet and outlet of the entire system are equal, but the water inlet and outlet of the system are less than the amount of water discharged from the inner cylinder 3 to the outer cylinder after the impeller 13 works. A circulation hole 18 is provided to circulate the water in the overflow gap 6, so that the device can be continuously circulated and separated.
[0044] Furthermore, the diameter of the impeller 13 is 1 / 4-1 / 2 of the diameter of the cylinder 17, and the rotation speed of the impeller 13 is 100-1000 r / min.
[0045] In this embodiment, the rotation speed of the impeller 13 is controlled at 100-1000 r / min to achieve a better separation effect. If the diameter of the impeller 13 is too large, coal blocks with larger mass will also be screened out, while if the diameter of the impeller 13 is too small, the screening effect will be poor.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A coal slime classification pulping machine, characterized in that: include: A cylinder (1), wherein the cylinder (1) has an overflow cavity (2); An inner cylinder (3) is arranged in the overflow cavity (2), the inner cylinder (3) and the cylinder body (1) form an overflow gap (6) and an overflow port (4) that are in communication with each other, the inner cylinder (3) has a flow port (5) at the bottom, and the flow port (5) is in communication with the overflow gap (6); The stirring member (7) is rotatably arranged on the cylinder (1) and is located in the overflow cavity (2). After the stirring member (7) stirs, the dispersed coal sludge flows out from the overflow port (4).
2. A coal slime classification pulping machine according to claim 1, characterized in that: The inner cylinder (3) has an end cover (8), and the end cover (8) has a material inlet (9) and an observation port (10).
3. A coal slime classification pulping machine according to claim 2, characterized in that: The stirring member (7) comprises: A rotating shaft (11) rotatably disposed on the cylinder (1); An impeller (13) is arranged on the rotating shaft (11), and when the rotating shaft (11) rotates, the impeller (13) is driven to rotate; Also includes: A driving unit (12) is arranged on the barrel (1), and the driving unit (12) is used to drive the rotating shaft (11) to rotate.
4. The coal slime classification pulping machine according to claim 1, characterized in that: The inner wall of the cylinder (1) is provided with a plurality of conical protrusions (14), and the conical protrusions (14) are used for crushing coal blocks.
5. The coal slime classification pulping machine according to claim 1, characterized in that: The bottom of the cylinder (1) is provided with a discharge port (15), the discharge port (15) being in communication with the overflow cavity (2), and the discharge port (15) being used to discharge lumpy coal.
6. The coal slime classification pulping machine according to claim 3, characterized in that: The inner cylinder (3) has a connected frustum section (16) and a cylindrical section (17); the large diameter end of the frustum section (16) is connected to the feed port (9), and the small diameter end is connected to the cylindrical section (17).
7. A coal slime classification pulping machine according to claim 6, characterized in that: The diameter of the cylindrical section (17) is 1 / 3 to 2 / 3 of the diameter of the cylinder (1).
8. The coal slime classification pulping machine according to claim 1, characterized in that: The inner cylinder (3) has a plurality of circulation holes (18), and the plurality of circulation holes (18) are connected to the overflow gap (6).
9. The coal slime classification pulping machine according to claim 8, characterized in that: The diameter of the circulation hole (18) is 10 mm to 100 mm, and the ratio of the opening area formed by a plurality of the circulation holes (18) to the wall area of the inner cylinder (3) is 0.2 to 0.
5.
10. The coal slime classification pulping machine according to claim 6, characterized in that: The diameter of the impeller (13) is 1 / 4-1 / 2 of the diameter of the cylindrical section (17), and the rotation speed of the impeller (13) is 100-1000 r / min.