Ultra-fine particle filter-press coal dryer

Abstract

The utility model discloses an ultrafine particle filter pressing coal dryer which comprises a bottom plate and two sets of movable columns erected above the bottom plate side by side, one end of one set of movable columns is externally and coaxially connected with a first rotating motor, the upper portions of the two sets of movable columns are jointly connected with a drying cylinder through a gear and rack mechanism, and one end of the drying cylinder is externally and coaxially fixed with a second rotating motor. An output shaft of the second rotating motor extends into the drying cylinder and is coaxially connected with a rotating column, a plurality of crushing rods are evenly arranged on the side wall of the rotating column in the circumferential direction at intervals, and the end, away from the rotating column, of each crushing rod is connected with a brush head. The drying drum is driven to rotate, so that the overall drying speed of coal is increased; when the drying cylinder rotates, the rotating column in the drying cylinder can reversely rotate at the same time to drive the crushing rod to fully crush the caked coal, and meanwhile, the brush head removes the caked coal adhered to the inner wall of the drying cylinder and then crushes the caked coal, so that the surface area of the crushed coal is increased, contact with hot air flow is facilitated, water evaporation is accelerated, and the drying efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal deep processing equipment, and in particular relates to an ultra-fine particle filter press coal drying machine. Background Art

[0002] As one of the important products of coal deep processing, the moisture content of filter press fine coal directly affects the quality and sales of the product. As the finer the product particle size, the larger the surface area, the more water is adsorbed, resulting in fine coal with high moisture content not only reducing its calorific value, but also increasing the difficulty of transportation and storage. At present, the industry mostly uses plate and frame filter presses for dehydration. Since this process is a physical extrusion process, the moisture content in the product is still maintained at around 20%. In view of the strict requirements of downstream industries on the moisture content of raw materials, it is necessary to add fine coal drying equipment at the back end of the filter press process.

[0003] Coal dryer is the main equipment for wet coal dewatering and quality improvement in coal plants. It has many advantages such as simple structure, stable operation, high efficiency, energy saving and environmental protection, green production skills, and easy operation. Its working principle is to break up large pieces of wet coal through the lifting plate fixed on the inner wall, and then fully contact with the hot air flow to quickly reduce the moisture content of the coal and achieve the purpose of dewatering and quality improvement. However, the existing coal dryer still has the following shortcomings: the existing equipment often focuses on the drying effect of coal during design, but ignores the crushing of coal, causing a large amount of pressed filter coal to clump in the dryer, especially around the lifting plate on the inner wall, and the moisture in the center of the coal block is difficult to disperse evenly, resulting in the dryer requiring a lot of time for subsequent drying, which affects work efficiency. Utility Model Content

[0004] The utility model aims to provide an ultra-fine particle filter press coal drying machine, which solves the problem of low drying efficiency caused by poor crushing effect of the existing coal drying machine.

[0005] The technical solution adopted by the utility model is: an ultra-fine particle filter press coal dryer, comprising a bottom plate, two groups of movable columns are arranged in parallel above the bottom plate, one end of one group of movable columns is coaxially connected to a first rotating motor, the two groups of movable columns are commonly connected to a drying cylinder through a gear rack mechanism, a second rotating motor is coaxially fixed to one end of the drying cylinder, the output shaft of the second rotating motor extends into the drying cylinder and is coaxially connected to a rotating column, a plurality of breaking rods are evenly spaced around the circumference of the side wall of the rotating column, and a brush head is connected to the end of each breaking rod away from the rotating column.

[0006] The utility model is also characterized in that:

[0007] The gear rack mechanism comprises gears sleeved at two ends of each group of movable columns at intervals, and spur racks arranged in an array around the outer wall of the drying cylinder and meshing with the gears.

[0008] A fixed plate and a side plate are respectively fixed at both ends of the two groups of movable columns on the bottom plate, and both the fixed plate and the side plate are movably connected with the movable columns through bearings.

[0009] One end of the drying cylinder close to the fixed plate is coaxially fixedly connected with a support column, and the other end of the support column is movably connected to the fixed plate through a bearing.

[0010] One end of the drying cylinder close to the fixed plate is fixedly connected with a material discharge chute, and a sealing plate is arranged at the opening position of the material discharge chute.

[0011] A cover body is coaxially fixed to one end of the drying cylinder away from the fixed plate, and the second rotating motor body is fixedly connected to one end of the cover body away from the drying cylinder.

[0012] The end of the brush head away from the breaking rod all touches the inner wall of the drying cylinder.

[0013] A base is fixedly connected below the bottom of the bottom plate.

[0014] The beneficial effects of the utility model are as follows: the ultra-fine particle filter press coal dryer of the utility model ensures that all parts of the coal can be evenly dried during the drying process by driving the drying drum to rotate, so that heat energy is more effectively transferred to the coal, thereby improving the overall drying speed of the coal; when the drying drum rotates, the rotating column inside it can rotate in the opposite direction at the same time, driving the crushing rod to fully crush the agglomerated coal, and at the same time the brush head removes the agglomerates adhered to the inner wall of the drying drum and then crushes them, so that the surface area of ​​the crushed coal is increased, which is more conducive to contact with the hot air flow, accelerates the evaporation of water, and thus improves the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the ultra-fine particle filter press coal drying machine of the utility model;

[0016] Figure 2 It is a schematic diagram of the lower structure of the drying cylinder in the ultra-fine particle filter press coal drying machine of the utility model;

[0017] Figure 3 It is a schematic diagram of the external structure of the drying cylinder in the ultra-fine particle filter press coal drying machine of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a drying cylinder in an ultra-fine particle filter press coal drying machine.

[0019] In the figure, 1. bottom plate, 2. base, 3. side plate, 4. first rotating motor, 5. movable column, 6. gear, 7. fixed plate, 8. support column, 9. drying cylinder, 10. spur rack, 11. discharge chute, 12. cover body, 13. second rotating motor, 14. rotating column, 15. breaking rod, 16. brush head. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0021] Example 1

[0022] The utility model provides an ultra-fine particle filter press coal drying machine, such as Figures 1 to 4 As shown, it includes a bottom plate 1, a base 2 is fixedly connected to the bottom of the bottom plate 1, a fixed plate 7 and a side plate 3 are fixed on the bottom plate 1, two groups of movable columns 5 are arranged side by side between the fixed plate 7 and the side plate 3, and the fixed plate 7 and the side plate 3 are movably connected to the movable column 5 through bearings. A first rotating motor 4 is coaxially connected to one end of a group of movable columns 5, and a drying cylinder 9 is commonly connected to the top of the two groups of movable columns 5 through a gear rack mechanism to drive the drying cylinder 9 to rotate. A support column 8 is coaxially fixedly connected to one end of the drying cylinder 9 close to the fixed plate 7, and the other end of the support column 8 is movably connected to the fixed plate 7 through a bearing. A discharge chute 11 is also fixedly connected to the end of the drying cylinder 9 close to the fixed plate 7, and a sealing plate (not shown in the accompanying drawings) is provided on the discharge chute 11. When the drying cylinder 9 rotates, the discharge chute 11 rotates with it. During the rotation of the drying cylinder 9, the material may tend to accumulate in a certain area and cause blockage. If the discharge chute 11 can rotate with it, the material accumulation can be reduced, and the risk of blockage can be reduced. During the drying process, it is ensured that all parts of the coal can be evenly dried, so that heat energy can be more effectively transferred to the coal, thereby improving the overall drying speed of the coal. A cover body 12 is coaxially fixed to the end of the drying cylinder 9 away from the fixed plate 7, the main body of the second rotating motor 13 is fixedly connected to the end of the cover body 12 away from the drying cylinder 9, the output shaft of the second rotating motor 13 extends into the drying cylinder 9 and is coaxially connected to a rotating column 14, a plurality of breaking rods 15 are evenly spaced around the circumference of the side wall of the rotating column 14, each breaking rod 15 is connected to a brush head 16 at one end away from the rotating column 14, and the end of the brush head 16 away from the breaking rod 15 touches the inner wall of the drying cylinder 9.

[0023] Through the above-mentioned method, the ultra-fine particle filter press coal dryer of the utility model ensures that all parts of the coal can be evenly dried during the drying process by driving the drying cylinder 9 to rotate, so that heat energy can be more effectively transferred to the coal, thereby improving the overall drying speed of the coal; when the drying cylinder 9 rotates, the rotating column 14 inside it can rotate in the opposite direction at the same time, driving the crushing rod 15 to fully crush the agglomerated coal, and at the same time the brush head 16 removes the agglomerates adhered to the inner wall of the drying cylinder 9 and then crushes them, so that the surface area of ​​the crushed coal is increased, which is more conducive to contact with the hot air flow, accelerates the evaporation of water, and thus improves the drying efficiency.

[0024] Example 2

[0025] The utility model provides an ultra-fine particle filter press coal drying machine, such as Figures 1 to 4The bottom plate 1 includes a base 2 fixedly connected to the bottom of the bottom plate 1, a fixed plate 7 and a side plate 3 fixed to the bottom plate 1, two groups of movable columns 5 are arranged side by side between the fixed plate 7 and the side plate 3, and the fixed plate 7 and the side plate 3 are movably connected to the movable columns 5 through bearings. A first rotating motor 4 is coaxially connected to one end of a group of movable columns 5, and a drying cylinder 9 is connected to the two groups of movable columns 5 through a gear rack mechanism to drive the drying cylinder 9 to rotate. The gear rack mechanism preferably includes gears 6 sleeved at intervals at both ends of each group of movable columns 5, and a straight rack 10 arrayed around the outer wall of the drying cylinder 9 and meshing with the gear 6, which has high transmission efficiency and strong load-bearing capacity. The drying cylinder 9 is coaxially fixedly connected to a support column 8 at one end close to the fixed plate 7, and the other end of the support column 8 is movably connected to the fixed plate 7 through a bearing. The drying cylinder 9 is also fixedly connected to a feed chute 11 at one end close to the fixed plate 7, and a tightly sealed sealing plate is provided on the feed chute 11. A cover body 12 is coaxially fixed to the end of the drying cylinder 9 away from the fixed plate 7. The body of the second rotating motor 13 is fixedly connected to the end of the cover body 12 away from the drying cylinder 9. The output shaft of the second rotating motor 13 extends into the drying cylinder 9 and is coaxially connected to a rotating column 14. A number of breaking rods 15 are evenly spaced around the circumferential side wall of the rotating column 14. A brush head 16 is connected to the end of each breaking rod 15 away from the rotating column 14, and the end of the brush head 16 away from the breaking rod 15 touches the inner wall of the drying cylinder 9.

[0026] Example 3

[0027] The utility model provides an ultra-fine particle filter press coal drying machine, such as Figures 1 to 4It is shown that when working, the coal filter cake at the bottom of the filter press is put into the drying cylinder 9 through the feeding chute 11, and the first rotating motor 4 fixed on the side plate 3 of the main body is started, and its output shaft drives the movable column 5 to rotate, and then drives the gear 6 to rotate, and drives the spur rack 10 to rotate under the meshing action, thereby driving the drying cylinder 9 to rotate. The support column 8 connected between the drying cylinder 9 and the fixed plate 7 can limit the possible radial displacement of the drying cylinder 9 while rotating with the drying cylinder 9. By driving the drying cylinder 9 to rotate, it is ensured that all parts of the coal can be evenly dried during the drying process, so that the heat energy is more effectively transferred to the coal, and the overall drying speed of the coal is improved. When the drying cylinder 9 rotates, the second rotating motor 13 on the cover body 12 drives the rotating column 14 to rotate in the opposite direction at the same time, driving the crushing rod 15 to fully contact with the coal in the drying cylinder 9 so as to fully crush it. The crushing rod 15 can use a metal rod with sharp edges to further improve the crushing effect. At the same time, the brush head 16 is used to remove the lumps adhering to the inner wall of the drying cylinder 9, and then crush them after scraping. During the rotation of the drying cylinder 9, the coal is mainly gathered on the inner wall of the cylinder due to the centrifugal effect, and the crushing body of the existing equipment, namely the lifting plate, is also arranged on the inner wall of the cylinder, so it is easy to cause agglomeration in the groove formed at the connection position. The crushing bodies such as the rotating column 14 and the crushing rod 15 of the utility model are located at the center of the drying cylinder 9. Firstly, it is difficult for the coal to gather on the crushing body. Secondly, the crushing rod 15 and the brush head 16 can produce sufficient relative movement with the coal gathered on the inner wall of the cylinder, thereby significantly reducing the agglomeration phenomenon. The surface area of ​​the coal after sufficient crushing is increased, which is more conducive to contact with the hot air flow, accelerates the evaporation of water, and thus improves the drying efficiency.

Claims

1. Ultrafine particle filter press coal dryer, characterized in that: The invention comprises a bottom plate (1), two groups of movable columns (5) are arranged in parallel above the bottom plate (1), one end of one group of movable columns (5) is coaxially connected to a first rotating motor (4), the two groups of movable columns (5) are connected to a drying cylinder (9) via a gear rack mechanism, a second rotating motor (13) is coaxially fixed to one end of the drying cylinder (9), the output shaft of the second rotating motor (13) extends into the drying cylinder (9) and is coaxially connected to a rotating column (14), a plurality of crushing rods (15) are evenly spaced around the circumference of the side wall of the rotating column (14), and a brush head (16) is connected to the end of each crushing rod (15) away from the rotating column (14).

2. The ultrafine filter press coal drying machine according to claim 1, characterized in that: The gear rack mechanism comprises gears (6) sleeved at intervals on both ends of each group of movable columns (5), and spur racks (10) arranged in an array around the outer wall of the drying cylinder (9) and meshing with the gears (6).

3. The ultrafine particle filter press coal drying machine according to claim 1, characterized in that: A fixed plate (7) and a side plate (3) are respectively fixed to the two ends of the two groups of movable columns (5) on the bottom plate (1), and both the fixed plate (7) and the side plate (3) are movably connected to the movable columns (5) via bearings.

4. The ultrafine filter press coal drying machine according to claim 3, characterized in that: The drying cylinder (9) is coaxially fixedly connected to a support column (8) at one end close to the fixed plate (7), and the other end of the support column (8) is movably connected to the fixed plate (7) via a bearing.

5. The ultrafine filter press coal drying machine according to claim 3, characterized in that: One end of the drying cylinder (9) close to the fixed plate (7) is fixedly connected to a material discharge chute (11), and a sealing plate is provided at the opening of the material discharge chute (11).

6. The ultrafine filter press coal drying machine according to claim 3, characterized in that: A cover body (12) is coaxially fixed to one end of the drying cylinder (9) away from the fixing plate (7), and a body of the second rotating motor (13) is fixedly connected to the end of the cover body (12) away from the drying cylinder (9).

7. The ultrafine filter press coal drying machine according to claim 1, characterized in that: The end of the brush head (16) away from the crushing rod (15) abuts against the inner wall of the drying cylinder (9).

8. The ultrafine filter press coal drying machine according to claim 1, characterized in that: A base (2) is fixedly connected below the bottom of the base plate (1).

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