An over-pulp adjusting mechanism and an over-pulp device of a ball mill having the mechanism

Abstract

The present invention discloses a pulp passing adjusting mechanism and a pulp passing device of a ball mill having the mechanism; the pulp passing adjusting mechanism includes a pulp hopper, a first gate plate disposed in the pulp hopper, a second gate plate slidably connected to the first gate plate, and a gate plate adjusting mechanism disposed on the pulp hopper for adjusting the positions of the first gate plate and / or the second gate plate in the pulp hopper; the lower ends of the first gate plate and the second gate plate form a pulp passing channel with the inner wall of the pulp hopper; the gate plate adjusting mechanism adjusts the positions of the first gate plate and the second gate plate to achieve adjusting the size of the pulp passing channel so as to control the pulp flow rate. The pulp passing adjusting mechanism of the present invention adjusts the relative height of the first gate plate and / or the second gate plate in the pulp hopper through the gate plate adjusting mechanism, realizes adjusting the size of the pulp passing channel to control the flow rate of the pulp flowing through the pulp passing device, so as to realize that the pulp level height can be simply and freely adjusted within a reasonable range, and in combination with the process requirements, can quickly find the most ideal pulp height state and maximize the ball milling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and in particular to an over-pulp adjusting mechanism and a ball mill over-pulp device having the mechanism. Background Art

[0002] During the grinding process of a continuous ball mill, an uninterrupted continuous feeding / discharging method is adopted. The height of the pulp level inside the cylinder changes with various factors such as the output and the number of sieve plate holes, and it is impossible to know the height of the pulp level inside the ball mill bin at any time.

[0003] The connection system of the existing continuous ball mill serves to connect individual ball mill bins in series, but it does not have the function of adjusting the pulp height between adjacent ball mill bins. When the pulp height is too small, the energy consumption is too large, and when the pulp height is too large, the grinding efficiency is low. The height of the pulp level in a continuous ball mill mainly depends on the flow-through area of the over-pulp sieve plate holes. In addition, it is also related to many factors such as the rotation speed, output, and sieve plate diameter of the ball mill. Therefore, it is impossible to obtain an ideal pulp height difference solely based on theory. According to the formulation requirements of the slurry, different sieve plates can be tested to find a suitable pulp height difference. However, the following problems exist in practice: 1. High cost. It is difficult to determine the flow-through area of the out-pulp sieve plate holes, and many types of sieve plates need to be tested to obtain ideal results; 2. Lack of flexibility. As parameters such as the ball stone ratio, slurry fineness, and output change, the ideal pulp height difference also changes, and the pulp height cannot be adjusted flexibly. Summary of the Invention

[0004] To overcome the defects of the above-mentioned prior art, the present invention provides an over-pulp adjusting mechanism and a ball mill over-pulp device having the mechanism.

[0005] The technical solution adopted by the present invention to solve its problems is as follows:

[0006] An over-pulp adjusting mechanism includes a pulp hopper, a first gate plate arranged in the pulp hopper, a second gate plate in sliding contact with the first gate plate, and a gate plate adjusting mechanism arranged on the pulp hopper for adjusting the positions of the first gate plate and / or the second gate plate in the pulp hopper;

[0007] The lower ends of the first gate plate and the second gate plate form an over-pulp channel with the inner wall of the pulp hopper;

[0008] The gate plate adjusting mechanism adjusts the positions of the first gate plate and the second gate plate to adjust the size of the over-pulp channel so as to control the flow rate of the slurry.

[0009] The sizing adjustment mechanism provided by the present invention adjusts the relative height of the first gate and / or the second gate in the sizing hopper by setting a gate adjustment mechanism, realizes the adjustment of the size of the sizing channel, thereby controls the flow rate of the sizing material flowing through the sizing device, and realizes that the slurry level height can be simply and freely adjusted within a reasonable range. Combined with the process requirements, the most ideal slurry height state can be quickly found, and the ball milling efficiency is maximized.

[0010] Further, the gate adjustment mechanism includes a first adjustment mechanism for adjusting the first gate, a second adjustment mechanism for adjusting the second gate, and a fixing plate respectively and movably connected to the first adjustment mechanism and the second adjustment mechanism. The fixing plate is arranged on the sizing hopper.

[0011] Further, the first adjustment mechanism includes a first screw rod movably connected to the fixing plate, a first adjustment nut for adjusting the position of the first screw rod, and a first nut for fixedly connecting the first gate and the first screw rod;

[0012] The second adjustment mechanism includes a second screw rod movably connected to the fixing plate, a second adjustment nut for adjusting the position of the second screw rod, and a second nut for fixedly connecting the second gate and the second screw rod.

[0013] Thus, by respectively adjusting the relative height positions of the first gate and the second gate in the sizing hopper with the first adjustment nut and the second adjustment nut, the adjustment of the size of the sizing channel is realized.

[0014] Further, the lower end of the first gate and / or the second gate is an arc-shaped structure.

[0015] Thus, the first gate and / or the second gate can completely close the sizing channel at the lower end of the sizing hopper.

[0016] Further, a limiting member for guiding the displacement of the first gate and the second gate is arranged in the sizing hopper.

[0017] Further, a first straight plate and a second straight plate are arranged on the inner wall of the sizing hopper, and the limiting member is arranged on the first straight plate and the second straight plate.

[0018] Further, the limiting member is a channel-shaped member.

[0019] Further, an overflow pipe is communicated with the upper part of the first straight plate, and the discharge port of the overflow pipe is located on one side of the second gate.

[0020] Further, a ball stone adding pipe is communicated with the lower part of the second straight plate, and the feed port of the ball stone adding pipe is located on one side of the first straight plate.

[0021] Further, the ball stone adding pipe is arranged obliquely downward, and the feed port of the ball stone adding pipe is higher than the discharge port of the overflow pipe.

[0022] Thus, when the "grinding overflow" occurs in the ball mill, resulting in too high pulp level, the pulp can flow out from the overflow pipe for centralized recycling, and the pulp will only flow out from the overflow pipe, rather than from the ball stone adding pipe; when the pulp level in the ball mill is too low, pulp can be added from the ball stone adding pipe to maintain the pulp level within a reasonable range.

[0023] The present invention also provides a pulp passing device for a ball mill with a pulp passing adjustment mechanism, which includes a pulp outlet joint, a flexible connection, a pulp passing pipe and a pulp inlet joint connected in sequence, and also includes the pulp passing adjustment mechanism;

[0024] The pulp hopper is arranged on the pulp passing pipe to realize the control of the pulp flow rate by the pulp passing device.

[0025] In summary, the pulp passing adjustment mechanism of the present invention has the following technical effects:

[0026] (1) By adjusting the relative height of the first gate and / or the second gate in the pulp hopper through the gate adjustment mechanism, the size of the pulp passing channel is adjusted to control the flow rate of the pulp flowing through the pulp passing device, so as to realize the simple and free adjustment of the pulp level within a reasonable range. Combining with the process requirements, the most ideal pulp height state can be quickly found, and the ball milling efficiency can be maximized.

[0027] (2) When the "grinding overflow" occurs in the ball mill, resulting in too high pulp level, the pulp can flow out from the overflow pipe, which is convenient for the centralized recycling of the pulp, and the pulp will only flow out from the overflow pipe, rather than from the ball stone adding pipe; when the pulp level in the ball mill is too low, pulp can be added from the ball stone adding pipe to maintain the pulp level within a reasonable range.

[0028] The pulp passing device for a ball mill with a pulp passing adjustment mechanism provided by the present invention controls the flow rate of the pulp in the pulp passing pipe through the pulp passing adjustment mechanism, so that the pulp level can be simply and freely adjusted within a reasonable range. Combining with the process requirements, the most ideal pulp height state can be quickly found, and the ball milling efficiency can be maximized. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the pulp passing device for a ball mill with a pulp passing adjustment mechanism provided by the present invention;

[0030] Figure 2 is Figure 1 a partial enlarged view of part A in

[0031] Figure 3 is a schematic sectional view of the pulp hopper of the present invention.

[0032] Description of the Reference Numerals:

[0033] 1. Pulp discharge joint; 2. Flexible connection; 3. Pulp hopper; 301. First straight plate; 302. Second straight plate; 31. First screw; 32. First adjusting nut; 33. First nut; 34. First gate plate; 35. Second screw; 36. Second adjusting nut; 37. Second nut; 38. Second gate plate; 39. Limiting member; 4. Pulp passing pipe; 5. Pulp inlet joint. Detailed implementation mode

[0034] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0037] Refer to Figures 1 - 3 , a pulp passing device for a ball mill with a pulp passing adjusting mechanism according to the present invention, which includes a pulp discharge joint 1, a flexible connection 2, a pulp passing pipe 4 and a pulp inlet joint 5 connected in sequence, and further includes a pulp passing adjusting mechanism for controlling the flow rate of the pulp flowing through the pulp passing pipe 4.

[0038] Specifically, as Figures 1 - 3 shown in the figure, the pulp passing adjusting mechanism includes a pulp hopper 3 provided on the pulp passing pipe 4, a first gate plate 34 provided in the pulp hopper 3, a second gate plate 38 slidably connected to the first gate plate 34, and a fixing plate 6 provided on the pulp hopper 3; the lower ends of the first gate plate 34 and the second gate plate 38 form a pulp passing channel with the inner wall of the pulp hopper 3; a gate plate adjusting mechanism for adjusting the first gate plate 34 and / or the second gate plate 38 is provided between the first gate plate 34 and the second gate plate 38 and the fixing plate 6 to adjust the size of the pulp passing channel to control the flow rate of the pulp.

[0039] The sizing adjustment mechanism provided by the present invention adjusts the relative height of the first gate 34 and / or the second gate 38 in the sizing hopper 3 through the gate adjustment mechanism, realizes the adjustment of the size of the sizing channel, controls the flow rate of the flowing slurry, and enables the slurry level height to be simply and freely adjusted within a reasonable range. Combining with the process requirements, the most ideal slurry height state can be quickly found, and the ball milling efficiency is maximized.

[0040] In this embodiment, the gate adjustment mechanism includes a first adjustment mechanism for adjusting the first gate 34, a second adjustment mechanism for adjusting the second gate 38, and a fixing plate 6 respectively and movably connected to the first adjustment mechanism and the second adjustment mechanism. The fixing plate 6 is provided on the sizing hopper 3. Specifically, the first adjustment mechanism includes a first screw 31 movably connected to the fixing plate 6, a first adjustment nut 32 for adjusting the position of the first screw 31, and a first nut 33 for fixedly connecting the first gate 34 to the first screw 31. A first connecting block perpendicular to the first gate 34 is provided at the upper end of the first gate 34. The first screw 31 passes through the first connecting block and is fixed by the first nut 33. The second adjustment mechanism includes a second screw 35 movably connected to the fixing plate 6, a second adjustment nut 36 for adjusting the position of the second screw 35, and a second nut 37 for fixedly connecting the second gate 38 to the second screw 35. A second connecting block perpendicular to the second gate 38 is provided at the upper end of the second gate 38. The second screw 35 passes through the second connecting block and is fixed by the second nut 37.

[0041] Thus, the first gate 34 and the second gate 38 can be respectively adjusted by the first adjustment nut 32 and the second adjustment nut 36 to realize the adjustment of the size of the sizing channel.

[0042] Refer to Figure 3 , the lower end of the first gate 34 and / or the second gate 38 is an arc structure.

[0043] Thus, this setting is to ensure that the adjustable range of the sizing channel size is large enough.

[0044] In this embodiment, a limiting member 39 for guiding the displacement of the first gate 34 and the second gate 38 is provided in the sizing hopper 3. Further, a first straight plate 301 and a second straight plate 302 are provided on the inner wall of the sizing hopper 3, and the limiting member 39 is provided on the first straight plate 301 and the second straight plate 302. Further, the limiting member 39 is a groove-shaped member.

[0045] Refer to again Figure 3, an overflow pipe 7 is connected to the upper part of the first straight plate 301, and the discharge port of the overflow pipe 7 is located on one side of the second gate plate 38. In addition, a ball stone adding pipe 8 is connected to the lower part of the second straight plate 302, and the feeding port of the ball stone adding pipe 8 is located on one side of the first straight plate 34; the ball stone adding pipe 8 is arranged obliquely downward, and the feeding port of the ball stone adding pipe 8 is higher than the discharge port of the overflow pipe 7.

[0046] Thus, when the ball mill has a "rising grinding" phenomenon resulting in too high a pulp level, the pulp can flow out from the overflow pipe 7 for centralized recycling, and the pulp will only flow out from the overflow pipe 7 and will not flow out from the ball stone adding pipe 8; when the pulp level in the ball mill is too low, pulp can be added through the ball stone adding pipe 8 to maintain the pulp level within a reasonable range.

[0047] In summary, an over-pulp adjusting mechanism of the present invention has the following technical effects:

[0048] (1) By adjusting the relative height of the first gate plate 34 and / or the second gate plate 38 in the pulp hopper 3 through the gate plate adjusting mechanism, the size of the over-pulp channel is adjusted to control the flow rate of the pulp flowing through the over-pulp device, so as to realize simple and free adjustment of the pulp level within a reasonable range. Combining with the process requirements, the most ideal pulp height state can be quickly found to maximize the ball milling efficiency.

[0049] (2) When the ball mill has a "rising grinding" phenomenon resulting in too high a pulp level, the pulp can flow out from the overflow pipe 7 for centralized recycling, and the pulp will only flow out from the overflow pipe 7 and will not flow out from the ball stone adding pipe 8; when the pulp level in the ball mill is too low, pulp can be added through the ball stone adding pipe 8 to maintain the pulp level within a reasonable range.

[0050] The ball mill over-pulp device with an over-pulp adjusting mechanism provided by the present invention controls the flow rate of the pulp in the over-pulp pipe 4 through the over-pulp adjusting mechanism, so that the pulp level can be simply and freely adjusted within a reasonable range. Combining with the process requirements, the most ideal pulp height state can be quickly found to maximize the ball milling efficiency.

[0051] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A slurry passing device for a ball mill, comprising a slurry outlet joint (1), a flexible connection (2), a slurry passing pipe (4) and a slurry inlet joint (5) which are sequentially connected, characterized in that, It further includes a sizing adjustment mechanism, which comprises a sizing hopper (3), a first gate plate (34) arranged in the sizing hopper (3), a second gate plate (38) in sliding contact with the first gate plate (34), and a gate plate adjustment mechanism arranged on the sizing hopper (3) for adjusting the positions of the first gate plate (34) and the second gate plate (38) in the sizing hopper; The lower ends of the first gate plate (34) and the second gate plate (38) form a sizing channel with the inner wall of the sizing hopper (3); The gate plate adjustment mechanism adjusts the positions of the first gate plate (34) and the second gate plate (38) to adjust the size of the sizing channel so as to control the flow rate of the sizing material; A limiting member (39) for guiding the displacement of the first gate plate (34) and the second gate plate (38) is arranged in the sizing hopper (3); the sizing hopper (3) is arranged on a sizing pipe (4) to control the flow rate of the sizing material flowing through the sizing pipe (4); A first connecting block perpendicular to the first gate plate (34) is arranged at the upper end of the first gate plate (34), and a first screw rod (31) penetrates through the first connecting block and is fixed by a first nut (33); A second connecting block perpendicular to the second gate plate (38) is arranged at the upper end of the second gate plate (38), and a second screw rod (35) penetrates through the second connecting block and is fixed by a second nut (37).

2. The ball mill slurry passing device according to claim 1, characterized in that The gate plate adjustment mechanism includes a first adjustment mechanism for adjusting the first gate plate (34), a second adjustment mechanism for adjusting the second gate plate (38), and a fixing plate (6) movably connected to the first adjustment mechanism and the second adjustment mechanism respectively, and the fixing plate (6) is arranged on the sizing hopper (3).

3. The ball mill slurry passing device according to claim 2, wherein The first adjustment mechanism includes a first screw rod (31) movably connected to the fixing plate (6), a first adjustment nut (32) for adjusting the position of the first screw rod (31), and a first nut (33) for fixedly connecting the first gate plate (34) and the first screw rod (31); The second adjustment mechanism includes a second screw rod (35) movably connected to the fixing plate (6), a second adjustment nut (36) for adjusting the position of the second screw rod (35), and a second nut (37) for fixedly connecting the second gate plate (38) and the second screw rod (35).

4. The ball mill slurry passing device according to any one of claims 1-3, characterized in that, The lower end of the first gate plate (34) and / or the second gate plate (38) is of an arc-shaped structure.

5. The ball mill pulp passing device according to claim 4, characterized in that, A first straight plate (301) and a second straight plate (302) are arranged on the inner wall of the sizing hopper (3), and the limiting member (39) is arranged on the first straight plate (301) and the second straight plate (302).

6. The ball mill slurry passing device according to claim 5, characterized in that, The limiting member (39) is a channel-shaped member.

7. The ball mill pulp passing device according to claim 5 or 6, characterized in that, An overflow pipe (7) communicates with the upper part of the first straight plate (301), and the discharge port of the overflow pipe (7) is located on one side of the second gate plate (38).

8. The slurry passing device of the ball mill according to claim 7, characterized in that, A ball stone adding pipe (8) communicates with the lower part of the second straight plate (302), and the feed port of the ball stone adding pipe (8) is located on one side of the first gate plate (34).

9. The ball mill slurry passing device according to claim 8, characterized in that, The ball stone adding pipe (8) is arranged obliquely downward, and the feed port of the ball stone adding pipe (8) is higher than the discharge port of the overflow pipe (7).

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