Parallel type totally enclosed tumbler external heating drying unit

Abstract

The utility model relates to drying -machine technical field especially relates to a kind of side-by-side type full-enclosed rolling barrel external heating drying unit. When drying coal slime using drying machine, part of coal slime in the drum is always at the bottom under the action of gravity, and cannot be fully dried. A kind of side-by-side type full-enclosed rolling barrel external heating drying unit, including uniformly distributed closed machine shell, the closed machine shell is rotatably connected with drum, heating barrel is installed in the closed machine shell, heating barrel is fixedly connected and is communicated with water pipe, the closed machine shell is symmetrically distributed and is jointly installed with rack, the rack is installed with uniformly distributed driving motor one, the rack is symmetrically distributed and is respectively installed with uniformly distributed feeding shell and discharge shell, and the closed machine shell is installed with fire pipe. The utility model changes the position of coal slime in the drum by two stirring plates, avoids coal slime always located at the lower side in the drum, and causes part of coal slime to be unable to fully contact and exchange heat with the inner wall of the drum.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to a side-by-side fully enclosed external heating dryer unit. Background Technology

[0002] Coal slime is a byproduct produced during coal production. It is mainly composed of fine coal particles, gangue powder, clay minerals, and moisture. It has the characteristics of high water retention, high viscosity, and low calorific value. Due to its high moisture content, it is difficult to use directly. Therefore, to reduce its moisture content, increase its calorific value, and facilitate transportation and storage, it is necessary to use a dryer to dry the coal slime.

[0003] However, when using a dryer to dry coal slime, the dryer uses the rotation of the drum to turn the coal slime inside. However, under the action of gravity, the coal slime is still at the bottom of the drum, which means that some of the coal slime inside the drum cannot be fully dried, thus prolonging the drying time. Utility Model Content

[0004] In order to overcome the shortcomings of coal slime drying in a dryer where some of the coal slime inside the drum remains at the bottom due to gravity and cannot be fully dried, this utility model provides a parallel fully enclosed drum external heating dryer unit.

[0005] The technical solution of this utility model is: a parallel fully enclosed drum external heating dryer unit, comprising uniformly distributed enclosed shells, each uniformly distributed enclosed shell being rotatably connected to a drum, a heating drum installed inside the enclosed shell and rotatably connected to an adjacent drum, the heating drum being fixedly connected and connected to a water supply pipe penetrating the adjacent enclosed shells, the uniformly distributed enclosed shells sharing a symmetrically distributed frame, the frame being equipped with a uniformly distributed drive motor, the output shaft of the drive motor being transmitted to the adjacent drum via a gear set, the symmetrically distributed frame being respectively equipped with uniformly distributed feed shells and discharge shells, both the feed shells and discharge shells being rotatably connected to the adjacent drums, and a flame-spraying pipe installed on the enclosed shell.

[0006] Furthermore, the flame-trigger is located on the lower side of the adjacent heating barrel, and the two are in close contact with each other. The cross-sectional area of ​​the flame-trigger located inside the adjacent enclosed casing gradually decreases from the feed casing to the discharge casing.

[0007] Furthermore, symmetrically distributed agitator plates are fixed inside the drum, and all symmetrically distributed agitator plates are spiral arc-shaped plates.

[0008] Furthermore, a fixed frame is installed between adjacent feed shells and discharge shells. The fixed frame is located inside adjacent drums. The fixed frame is rotatably connected to symmetrically distributed rotating shafts. The rotating shafts are equipped with evenly distributed crushing parts. The rotating shafts pass through adjacent discharge shells. A second drive motor is installed in the discharge shell. The rotating shafts symmetrically distributed on the same fixed frame are driven by a gear set. One of the rotating shafts is also driven by a gear set to the output shaft of the adjacent second drive motor.

[0009] Furthermore, a sliding frame 1 and a sliding frame 2 are slidably connected inside the fixed frame. A filter screen is installed on the sliding frame 1. The sliding frame 1 is located between an adjacent rotating shaft and an adjacent sliding frame 2. The sliding frame 2 is equipped with evenly distributed pointed rods. Springs are connected between the sliding frame 1 and the sliding frame 2 and the adjacent fixed frame. The sliding frame 1 and the adjacent sliding frame 2 are driven by gears and racks.

[0010] Furthermore, the broken pieces evenly distributed on the symmetrically distributed rotating shaft and the pointed rods evenly distributed in the adjacent sliding frames are staggered, and the pointed rods are located between adjacent broken pieces on the symmetrically distributed rotating shaft.

[0011] Furthermore, the heating tank is fixedly connected to and connected to an exhaust pipe that penetrates the adjacent enclosed casing. The evenly distributed exhaust pipes are installed together and connected to a preheating tank. The preheating tank is equipped with a drain outlet. The evenly distributed feed shells are installed together and connected to a ventilation pipe that penetrates the preheating tank. An exhaust pipe is installed and connected to the upper side of the discharge shell.

[0012] The present invention has the following advantages: The present invention changes the position of the coal slime in the drum by using two stirring plates, thereby avoiding the coal slime from always being located on the lower side of the drum, which would prevent some of the coal slime from fully contacting and exchanging heat with the inner wall of the drum, thus affecting the drying efficiency of the coal slime.

[0013] This invention utilizes two sets of rotating crushing components to break up the coal slurry entering the fixed frame and to break up some of the coal slurry that has clumped due to excessive heating time. This prevents the coal slurry from clumping together, which reduces the contact area with the inner wall of the drum, making it difficult for the moisture in the core to evaporate and prolonging the drying time.

[0014] This invention uses a pointed rod to push up the coal sludge that has accumulated on the upper side of the filter screen, thereby preventing the coal sludge from clogging the filter screen and preventing it from falling onto the inner wall of the drum through the filter screen on the sliding frame, which would affect the drying efficiency of the coal sludge. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the roller, feed shell, and discharge shell of this utility model.

[0017] Figure 3 This is a three-dimensional structural cross-sectional view of the enclosed casing, roller, and heating barrel of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the mixing plate, fixing frame, and rotating shaft of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the sliding frame one, sliding frame two, and pointed rod of this utility model.

[0020] Figure 6 This is a three-dimensional structural diagram of the fixing frame, sliding frame one, and sliding frame two of this utility model.

[0021] Figure 7 This is an exploded view of the fixing frame, sliding frame one, and sliding frame two of this utility model.

[0022] The markings in the attached diagram are: 1-enclosed casing, 2-drum, 3-heating tank, 4-water pipe, 5-frame, 6-drive motor one, 7-feeding shell, 8-discharge shell, 9-flame pipe, 10-mixing plate, 11-fixed frame, 12-rotating shaft, 13-crushed parts, 14-drive motor two, 15-sliding frame one, 16-sliding frame two, 17-pointed rod, 18-exhaust pipe one, 19-preheating tank, 20-ventilation pipe, 21-exhaust pipe two. Detailed Implementation

[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings. It should be noted that although three enclosed housings 1 are shown in the drawings, the number of enclosed housings 1 can be freely set in the actual production process. At the same time, the cross-section of the middle enclosed housing 1 is U-shaped, the cross-section of the left enclosed housing 1 is C-shaped, and the cross-section of the right enclosed housing 1 is symmetrical to that of the left. This design saves materials for manufacturing the enclosed housings 1 and reduces manufacturing costs.

[0024] Example 1: A side-by-side fully enclosed external heating drum drying unit, such as Figures 1-4As shown, the device includes three enclosed housings 1, each rotatably connected to a roller 2. A heating tank 3, rotatably connected to an adjacent roller 2, is installed inside each enclosed housing 1. A water inlet pipe 4, penetrating the adjacent enclosed housing 1, is fixedly connected to and connected to the upper side of the heating tank 3. Two symmetrically distributed frames 5 are mounted on the evenly distributed enclosed housings 1. Three sets of drive motors 6 are evenly distributed on each frame 5, each set containing two symmetrically distributed drive motors 6. Gears are installed on both the front and rear parts of the roller 2. Gears meshing with the gears on the output shaft of each drive motor 6 are installed on the front frame 5. The machine has three feed shells 7, and three evenly distributed discharge shells 8 are installed on the rear frame 5. The feed shells 7 and discharge shells 8 are rotatably connected to the adjacent drums 2. The closed machine shell 1 is equipped with a flame pipe 9, which is connected to an external flame device (existing device). The flame is sprayed into the flame pipe 9 through the external flame device, thereby heating the heating barrel 3. The flame pipe 9 is located on the lower side of the adjacent heating barrel 3, and the two are in close contact with each other. The cross-sectional area of ​​the part of the flame pipe 9 inside the adjacent closed machine shell 1 gradually decreases from front to back. The drum 2 is fixed with symmetrically distributed stirring plates 10, and the symmetrically distributed stirring plates 10 are all spiral arc plates.

[0025] like Figures 3-6 As shown, a fixed frame 11 is installed between the adjacent feed shell 7 and discharge shell 8. The fixed frame 11 is located at the center inside the adjacent drum 2. The fixed frame 11 is rotatably connected to two rotating shafts 12 that are symmetrically distributed on the left and right. The rotating shafts 12 are equipped with crushing parts 13 that are evenly distributed in the front and rear axial directions. The rotating shafts 12 pass through the adjacent discharge shell 8. A second drive motor 14 is installed on the rear side of the discharge shell 8. Gears are installed on the rotating shafts 12, and the gears on the two rotating shafts 12 on the same fixed frame 11 mesh with each other. The output shaft of the second drive motor 14 is equipped with a gear that meshes with the gear on the adjacent rotating shaft 12.

[0026] like Figure 5 , Figure 6 and Figure 7 As shown, a sliding frame 15 and a sliding frame 16 are slidably connected inside the fixed frame 11. A filter screen is installed on the sliding frame 15. The sliding frame 15 is located between the adjacent rotating shaft 12 and the adjacent sliding frame 16. The sliding frame 16 is equipped with evenly distributed pointed rods 17. Springs are connected between the sliding frame 15 and the adjacent fixed frame 11. The sliding frame 15 and the adjacent sliding frame 16 are driven by gears and racks. The crushed parts 13 evenly distributed on the two rotating shafts 12 and the pointed rods 17 evenly distributed in the adjacent sliding frame 16 are staggered, and the pointed rods 17 are located between the adjacent crushed parts 13 on the symmetrically distributed rotating shafts 12.

[0027] When using this device to dry coal slime (taking the dryer corresponding to one of the closed casings 1 as an example), the operator adds water to the adjacent heating tank 3 through the water inlet pipe 4. Then, the operator sprays fire into the fire pipe 9 through the external flame spraying device to heat the water in the heating tank 3. When the water in the heating tank 3 reaches a certain temperature, the operator starts the drive motor 6 and the drive motor 14 and feeds the coal slime to be dried into the feed shell 7.

[0028] Drive motor 16 drives the roller 2 to rotate counterclockwise via a gear set (in the rear view). The roller 2 drives the two agitator plates 10 inside to rotate, conveying the coal slurry into the feed shell 7 backward. During this process, the water in the heating tank 3 heats the coal slurry through the roller 2, thereby reducing the moisture content of the coal slurry. Drive motor 24 drives the two rotating shafts 12 to rotate via a gear set. The left rotating shaft 12 rotates counterclockwise, and the right rotating shaft 12 rotates clockwise (in the rear view). The rotating shafts 12 drive the adjacent evenly distributed crushed pieces 13 to rotate.

[0029] During the rotation of the drum 2 and the two stirring plates 10, the two stirring plates 10 drive the coal slurry to rotate with the drum 2, changing the position of the coal slurry inside the drum 2. This prevents the coal slurry from always being located on the lower side inside the drum 2, which would result in only part of the coal slurry being in contact with the inner wall of the drum 2, while the remaining part of the coal slurry cannot fully contact and exchange heat with the inner wall of the drum 2, thus affecting the drying efficiency of the coal slurry.

[0030] When the coal slurry is moved to the upper side of the fixed frame 11 by the stirring plate 10, the coal slurry slides off the stirring plate 10 and enters the fixed frame 11. At this time, the crushing parts 13 evenly distributed on the two rotating shafts 12 rotate to break up the coal slurry that has entered the fixed frame 11 and crush some of the coal slurry that has clumped due to excessive heating time. This prevents the coal slurry from clumping together, which would reduce the contact area with the inner wall of the drum 2, making it difficult for the moisture in the core to evaporate and prolonging the drying time of the coal slurry.

[0031] During the above process, when the clumped coal sludge is broken up by the crusher 13, it will fall downwards again. If the coal sludge can pass through the filter screen on the sliding frame 15, it will fall directly onto the inner wall of the drum 2. If the coal sludge cannot pass through the filter screen on the sliding frame 15, that is, the coal sludge is still in a clumped state after being crushed, it will accumulate on the upper side of the filter screen. As the amount of clumped coal sludge increases, under the action of gravity, the sliding frame 15 slides downwards and compresses the spring between it and the adjacent fixed frame 11. The downward movement of the sliding frame 15 drives the adjacent sliding frame 2 16 upwards through the rack and gear transmission. The upward movement of the sliding frame 2 16 compresses the spring between it and the adjacent fixed frame 11. The spring, sliding frame 16, drives the evenly distributed pointed rods 17 to move upward. The upward movement of the pointed rods 17 pushes away the coal sludge accumulated on the upper side of the filter screen, thereby preventing the coal sludge from clogging the filter screen and causing it to fall onto the inner wall of the drum 2, thus affecting the drying efficiency of the coal sludge. At the same time, after the pointed rods 17 push away the clods of coal sludge accumulated on the upper side of the filter screen, the position of the clods of coal sludge changes, making it easier for the evenly distributed crushing parts 13 on the two rotating shafts 12 to break them up. As the number of clods of coal sludge on the upper side of the filter screen decreases, under the action of the spring, sliding frame 15 and sliding frame 16 respectively drive the parts on them to move and reset.

[0032] As the drum 2 drives the two mixing plates 10 to rotate and convey coal slurry backward, the coal slurry is gradually dried. The dried coal slurry is discharged through the discharge shell 8. When all the coal slurry is dried, the staff shuts down the external flame-spraying device, drive motor 6 and drive motor 14.

[0033] Example 2: Based on Example 1, such as Figures 1-3 As shown, the heating tank 3 is fixedly connected to and connected to an exhaust pipe 18 that penetrates the adjacent enclosed housing 1. The three exhaust pipes 18 are installed together and connected to a preheating tank 19. The preheating tank 19 is provided with a drain outlet for discharging the water vapor condensed inside the preheating tank 19. The three feed housings 7 are installed together and connected to a ventilation pipe 20. The ventilation pipe 20 penetrates the preheating tank 19 and is connected to an external ventilation device (existing device). Air is introduced into the ventilation pipe 20 through the external ventilation device. An exhaust pipe 21 is installed and connected to the upper side of the discharge housing 8.

[0034] During the heating process of the water in the heating tank 3, the water vapor evaporated after boiling in the heating tank 3 enters the preheating tank 19 through the exhaust pipe 18 and preheats the ventilation pipe 20 and the air inside it. Then, the staff connects the external ventilation device to the ventilation pipe 20, and the heated air in the ventilation pipe 20 is blown into the drum 2 to heat the coal slime in the drum 2. The water vapor in the drum 2 is discharged through the exhaust pipe 21. At the same time, the water condensed in the preheating tank 19 is collected through the drain outlet. In this way, the heat energy generated during the drying of coal slime is fully utilized and the waste of resources is reduced.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A parallel-type fully enclosed external heating drum drying unit, characterized in that: The device includes uniformly distributed enclosed housings (1), each of which is rotatably connected to a roller (2). A heating barrel (3) is installed inside the enclosed housing (1) and rotatably connected to the adjacent roller (2). The heating barrel (3) is fixedly connected to and connected to a water supply pipe (4) that passes through the adjacent enclosed housing (1). The uniformly distributed enclosed housings (1) are all equipped with symmetrically distributed frames (5). The frames (5) are equipped with uniformly distributed drive motors (6). The output shaft of the drive motors (6) is transmitted to the adjacent roller (2) through a gear set. The symmetrically distributed frames (5) are respectively equipped with uniformly distributed feed shells (7) and discharge shells (8). Both feed shells (7) and discharge shells (8) are rotatably connected to the adjacent roller (2). The enclosed housing (1) is equipped with a flame pipe (9).

2. The parallel-type fully enclosed drum external heating dryer unit according to claim 1, characterized in that: The flame tube (9) is located on the lower side of the adjacent heating barrel (3), and the two are in close contact with each other. The cross-sectional area of ​​the part of the flame tube (9) inside the adjacent closed casing (1) gradually decreases from the feed shell (7) to the discharge shell (8).

3. The parallel-type fully enclosed drum external heating dryer unit according to claim 1, characterized in that: The drum (2) is fixed with symmetrically distributed stirring plates (10), all of which are spiral arc-shaped plates.

4. A parallel-type fully enclosed external heating drum drying unit according to claim 3, characterized in that: A fixed frame (11) is installed between adjacent feed shells (7) and discharge shells (8). The fixed frame (11) is located inside adjacent drums (2). The fixed frame (11) is rotatably connected to symmetrically distributed rotating shafts (12). Uniformly distributed crushing parts (13) are installed on the rotating shafts (12). The rotating shafts (12) pass through adjacent discharge shells (8). A second drive motor (14) is installed in the discharge shell (8). The rotating shafts (12) symmetrically distributed on the same fixed frame (11) are driven by a gear set. One of the rotating shafts (12) is also driven by a gear set to the output shaft of the adjacent second drive motor (14).

5. A parallel-type fully enclosed external heating drum drying unit according to claim 4, characterized in that: Sliding frame one (15) and sliding frame two (16) are slidably connected inside the fixed frame (11). A filter screen is installed on sliding frame one (15). Sliding frame one (15) is located between the adjacent rotating shaft (12) and the adjacent sliding frame two (16). Sliding frame two (16) is equipped with evenly distributed pointed rods (17). Springs are connected between sliding frame one (15) and sliding frame two (16) and the adjacent fixed frame (11). Sliding frame one (15) and the adjacent sliding frame two (16) are driven by gears and racks.

6. A parallel-type fully enclosed external heating drum drying unit according to claim 5, characterized in that: The broken pieces (13) evenly distributed on the symmetrically distributed rotating shaft (12) and the pointed rods (17) evenly distributed in the adjacent sliding frame (16) are all staggered, and the pointed rods (17) are located between adjacent broken pieces (13) on the symmetrically distributed rotating shaft (12).

7. A parallel-type fully enclosed external heating drum drying unit according to claim 1, characterized in that: The heating tank (3) is fixedly connected to and connected to an exhaust pipe (18) that penetrates the adjacent enclosed shell (1). The exhaust pipes (18) are evenly distributed and connected to a preheating tank (19). The preheating tank (19) is provided with a drain outlet. The feed shells (7) are evenly distributed and connected to a ventilation pipe (20). The ventilation pipe (20) penetrates the preheating tank (19). The upper side of the discharge shell (8) is connected to an exhaust pipe (21).

Images