Accurate coal blending system capable of avoiding disc coal scattering

Abstract

The invention discloses an accurate coal blending system capable of avoiding disc coal scattering, and relates to the technical field of disc coal scattering and accurate coal blending. Disc discharging in the rotating process is controlled, and the movement range of a discharging screen in a coal barrel is controlled according to the rotation speed of a disc and adjustment of the opening degree of a movable baffle in cooperation with movement of a second upper pressing rod; according to the invention, materials stacked at the top of the disc and materials stacked at the top of the disc are actively pressed, the whole batching process is accelerated while precise discharging of the discharging cover side is realized, meanwhile, a material receiving disc is mounted on a blocking cover at the bottom of the whole disc, and coal scattered in gaps in the rotating process of the disc is collected and discharged through the discharging cover together; coal scattering in the coal material proportioning process is avoided, meanwhile, scattered coal can be normally discharged from the discharging opening in the rotating process of the disc, and accurate coal blending treatment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of disc coal scattering and precise coal blending, in particular to a precise coal blending system for avoiding disc coal scattering. Background Art

[0002] Coal blending is an important process in the preparation of coking coal. In order to produce coke that meets the quality requirements, different types of coking coal are blended in appropriate proportions. The quality of blended coal involves various process properties of coal, and the accuracy of automatic coal blending is a very important link.

[0003] The equipment of the coal blending system mainly includes disc feeders, frequency conversion controllers and air cannons. When the control system issues a command, the efficiency and effect of each device in executing the command will have a direct impact on the accuracy of coal blending. The disc feeder is an important feeding equipment in the coal blending system. It changes the number of disc revolutions at any time through a frequency conversion motor to achieve the purpose of accurate material feeding. During the use of the disc feeder, its internal structure should ensure that there is a certain space to avoid the phenomenon of "stuck material". At the same time, the disc feeder should also ensure that it can fully meet the discharge requirements of large-ratio coal materials to avoid the phenomenon of "blocking material". In addition, the feeding capacity of each disc feeder should also be consistent to reduce the adjustment error caused by coal bunker replacement.

[0004] To this end, we propose a precise coal blending system that avoids disc coal scattering. Summary of the invention

[0005] The object of the present invention is to provide a precise coal blending system which can avoid coal scattering from a disc, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precise coal distribution system for avoiding disc coal scattering, comprising a placing frame, a motor is fixed to the bottom bracket of the placing frame by bolts, a box body 1 is fixed to the bottom bracket of the placing frame, a transmission shaft is movably connected in the box body 1, a transmission gear 1 is fixedly sleeved on the outer wall of the transmission shaft, a disc is movably connected to the top of the placing frame, the central axis of the disc passes through the placing frame and the box body 1 and is sleeved and fixedly sleeved with a transmission gear 2, and the transmission gear 2 is meshingly connected with the transmission gear 1;

[0007] A baffle is fixedly mounted on the top of the placement rack and located on the outer wall of the disc, a receiving tray is fixedly connected to the inner wall of the baffle and located on the bottom of the disc, a movable baffle is movably connected to the outer wall of one side of the baffle through a bearing, and a discharging hood is fixed to the baffle on the side of the movable baffle through bolts.

[0008] Furthermore, a slider is slidably connected in the top groove of the movable baffle, a movable block is movably connected to the top of the slider, a threaded rotating rod is threadedly connected to the top of the baffle cover, and one end of the threaded rotating rod passes through the movable block and is threadedly connected to the movable block.

[0009] Furthermore, a locking mechanism is installed on the top of the placement rack, and a coal barrel is fixedly mounted on the top of the placement rack and on one side of the locking mechanism. The top of the coal barrel is fixed with a box body 2 by bolts, and a feed port is symmetrically installed on the top of the coal barrel, and the feed port is connected to the coal barrel.

[0010] Furthermore, the locking mechanism includes a sleeve and a threaded rod. The top of the placement frame is fixed with a sleeve by bolts. A counterweight rod is slidably connected inside the sleeve. One end of the counterweight rod is threadedly sleeved and connected to the threaded rod. The other end of the counterweight rod passes through box body 2 and is fixed with a chuck by spot welding.

[0011] Furthermore, a cam is fixedly mounted on the transmission shaft at the bottom of the placement rack, and a pressure rod 1 is rotatably connected to the bottom of the placement rack and located on the cam side, and the other end of the pressure rod 1 is in contact with one end of the threaded rod.

[0012] Furthermore, a lifting rod is rotatably connected to the second box body through a bearing, a groove on one side of the lifting rod is slidably engaged with the clamp, and the other end of the lifting rod is slidably engaged with the second pressing rod.

[0013] Furthermore, one end of the second pressure rod passes through the coal barrel and extends to the top of the disc. The second pressure rod is located in the coal barrel and is fixed with a discharge plug. The two ends of the pressure rod are fixed with impact blocks by bolts, and the impact blocks are in contact with the top of the disc.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, the baffle cover and the disc are installed on the placement frame, the motor speed is adjusted to realize the variable speed rotation of the disc, and the threaded rotary rod on the baffle cover is rotated to realize the sliding of the slider on the single-side movable baffle, and the movable block is rotated to realize the opening adjustment of the entire movable baffle on the disc, and finally the pressure rod 2 on the lifting rod side is driven to move under the up and down movement of the counterweight rod, so as to carry out the movement of the discharge plug in the flow channel in the coal barrel, and realize the continuous anti-blocking and discharging work of the coal barrel, and at the same time, the abutment of the impact block and the disc avoids the accumulation and affects the normal movement of the coal, so as to realize the precise discharging of the entire coal on the disc. Compared with the traditional disc feeder, the precise coal blending system of the disc coal spreading is designed with three sets of adjustment schemes for controlling the disc discharging during the rotation process, and at the same time, according to the disc speed and the opening adjustment of the movable baffle, the activity of the upper pressure rod 2 is coordinated to realize the precise discharging of the discharge cover side while accelerating the whole batching process;

[0016] 2. In the present invention, a baffle is set on the outer side of the disc to prevent part of the coal from spilling along the gap between the two, and a receiving tray installed on the inner wall of the baffle is used to intercept the remaining material. Similarly, the weak vibration generated by the impact block on the disc is used to uniformly discharge the coal intercepted by the receiving tray into the discharge cover, so that the spilled coal can also be discharged normally from the discharge cover during the rotation of the disc, thereby achieving accurate coal distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structural diagram of the precise coal blending system for avoiding disc coal scattering of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the locking and pressing mechanism connecting the placement rack and the coal barrel of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation structure of the inner disc of the baffle cover of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a precise coal blending system for avoiding disc coal scattering according to the present invention from a side view;

[0021] Figure 5 This is a schematic diagram of the structure of the locking and pressing mechanism connecting the pressing rod 1 and the lifting rod of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure in which the transmission shaft drives the disc to rotate according to the present invention.

[0023] In the figure: 1. placement rack; 2. motor; 3. transmission shaft; 4. box body 1; 5. transmission gear 1; 6. disc; 7. transmission gear 2; 8. baffle cover; 9. receiving tray; 10. moving baffle plate; 11. slider; 12. movable block; 13. threaded rotary rod; 14. discharge cover; 15. locking mechanism; 151. sleeve; 152. counterweight rod; 153. threaded rod; 154. chuck; 16. coal barrel; 17. feed port; 18. box body 2; 19. cam; 20. pressure rod 1; 21. lifting rod; 22. pressure rod 2; 23. discharge plug; 24. impact block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-6 , the present invention provides a technical solution:

[0026] Embodiment 1: Aiming at the problem that the coal scattering during the operation of the coal blending disc 6 affects the coal blending accuracy, a technical innovation is carried out to avoid the coal scattering and enable the scattered coal to be discharged normally from the discharge port during the rotation of the disc 6, so as to achieve accurate coal blending. At the same time, aiming at the defects of the scraper plate design, a new type of scraper plate with adjustable opening is designed and studied to solve the problem of uneven feeding of the disc 6. Finally, combined with the actual production operation on site, a new control operation mode is designed and studied to speed up the coal material conveying and blending ratio.

[0027] For this reason Figure 1 and Figure 2 As shown, a baffle 8 is fixedly installed on the top of the placement frame 1, and the rotating disc 6 is located inside the baffle 8, and there is a gap between the two. For the rotation drive of the entire disc 6, a motor 2 is fixed at the bottom of the placement frame 1. The pulley at the end of the motor 2 drives the transmission shaft 3 to rotate through a belt, as shown in FIG. Figure 6 As shown, the transmission shaft 3 is located in the box body 1 4 and is sleeved with a transmission gear 1 5, and the transmission gear 2 7 on the central axis of the disc 6 is meshed and connected with the transmission gear 1 5, so that the transmission shaft 3 is driven to rotate by the motor 2, and the entire disc 6 is rotated;

[0028] For intercepting and guiding the coal falling from the top of the disc 6, a movable baffle 10 is rotatably connected to the outer wall of the baffle cover 8 through a bearing, and the movable baffle 10 can be opened to adjust the degree of opening. In conjunction with the rotation of the disc 6, different amounts of coal can be intercepted and transported, and the opening of the movable baffle 10 on the baffle cover 8 can be adjusted;

[0029] like Figure 3 As shown, the upper edge of the baffle 8 is movably connected to the upper threaded rotating rod 13, and the top of the movable baffle 10 is slidably connected to the slider 11, and the top of the slider 11 is movably connected to the movable block 12, and one end of the entire threaded rotating rod 13 is threadedly sleeved with the movable block 12, so that the slider 11 can slide on the movable baffle 10 by rotating the threaded rotating rod 13, and the entire movable baffle 10 is driven to rotate, so that the opening of the movable baffle 10 at the top of the disc 6 can be adjusted;

[0030] Since there is a gap between the disc 6 and the baffle cover 8, in order to prevent some coal from falling through the gap during the rotation process, a receiving tray 9 is installed on the inner wall of the baffle cover 8 and at the bottom of the disc 6, and there is a deflection angle between the receiving tray 9 and the baffle cover 8. That is, if some coal falls onto the receiving tray 9, it will automatically move to the side of the discharge cover 14 through the inclined surface of the receiving tray 9. By installing a material guide pipe at the bottom of the discharge cover 14, continuous discharge of coal can be achieved.

[0031] Embodiment 2: Considering the coal barrel 16 for continuous feeding on the disc 6, in order to prevent the coal from being blocked during the feeding process or the problem of low efficiency of the coal on the disc 6, a cam 19 is installed on the outer wall of the transmission shaft 3, and at the same time, a locking mechanism 15 for fixing the coal barrel 16 is provided. Figure 4 As shown, the shaft sleeve 151 fixedly connected to the top of the placement frame 1 is used to fix the coal barrel 16, and the shaft sleeve 151 is also movably connected to the upper counterweight rod 152;

[0032] When the motor 2 drives the transmission shaft 3 to rotate, the cam 19 on the outer wall of the transmission shaft 3 rotates together, and the bottom of the placement rack 1 is also rotated and connected to a pressure rod 20. Figure 5 As shown, one end of the pressure rod 20 abuts against the cam 19, so the pressure rod 20 can be automatically lifted and pressed by rotating the cam 19, and the other end of the pressure rod 20 abuts against the threaded rod 153 installed at the end of the counterweight rod 152. By lifting the threaded rod 153, the counterweight rod 152 and the clamp 154 ​​fixed at its end are lifted;

[0033] The top of the coal barrel 16 is fixedly connected to the box body 2 18, and the clamp 154 ​​connected to the end of the counterweight rod 152 is clamped with the lifting rod 21 rotatably connected in the box body 2 18. A groove is provided at the end of the entire lifting rod 21, and the protrusion on the clamp 154 ​​abuts against the groove. Whenever the cam 19 presses the end of the pressure rod 1 20, the raised end of the pressure rod 1 20 lifts the entire counterweight rod 152, so that the clamp 154 ​​pushes the entire lifting rod 21 to rise, and the other end of the lifting rod 21 automatically descends;

[0034] Combination Figure 5 It can be understood that the end of the second pressure rod 22 installed in the coal barrel 16 is located in the second box body 18. Similar to the clamp 154, one end of the second pressure rod 22 is slidably engaged with the lifting rod 21. Therefore, when the right end of the lifting rod 21 descends, the connected second pressure rod 22 as a whole slides downward in the coal barrel 16.

[0035] The entire second pressure rod 22 is located in the discharge channel of the coal barrel 16 and is also equipped with a discharge plug 23. At the same time, the end of the second pressure rod 22 is located on the top side of the disc 6 and is fixedly connected to a collision block 24. Therefore, by swinging the lifting rod 21 up and down, the entire second pressure rod 22 can be moved in the coal barrel 16, and the discharge plug 23 on the second pressure rod 22 can be moved, thereby accelerating the falling rate of the coal in the coal barrel 16, and also avoiding the problem of coal blockage.

[0036] As for the coal material stacked on the disc 6, the movement of the impact block 24 can also accelerate the amount of coal discharged during the rotation of the disc 6, while preventing the uniform discharge of the entire disc 6 from being affected by the movement of the impact block 24 during the rotation process. Therefore, the movement range of the pressure rod 22 can also be adjusted, and the threaded rod 153 at the end of the entire counterweight rod 152 can be rotated;

[0037] Due to the gravity of the counterweight rod 152, under normal conditions, the entire counterweight rod 152 presses down the lifting rod 21, so that the lifting rod 21 remains as Figure 5 As shown in the figure, when the threaded rod 153 is screwed into the counterweight rod 152, the relative length of the entire counterweight rod 152 is shortened, and the entire cam 19 drives the pressure rod 20 to rotate with a limited range. Only when it reaches a specific height, the pressure rod 20 can push up the entire threaded rod 153, thereby realizing a series of subsequent component activities, that is, coal feeding and discharge control. The relative length of the entire threaded rod 153 and the counterweight rod 152 can be controlled according to demand;

[0038] The feed port 17 symmetrically opened at the top of the coal barrel 16 is used for subsequent continuous feeding. The precise coal blending system of the entire disc 6 is designed with three sets of adjustment schemes to control the discharge of the disc 6 during the rotation process. At the same time, according to the rotation speed of the disc 6 and the opening adjustment of the movable baffle 10, combined with the activity of the upper pressure rod 22, precise discharge of the side of the discharge cover 14 is achieved while accelerating the entire batching process.

[0039] Working principle of the present invention:

[0040] The feeder is used to continuously discharge the coal into the coal barrel 16 through the feed port 17, and at the same time, the motor 2 at the bottom of the placement frame 1 is started. The motor 2 rotates to drive the transmission shaft 3 to rotate, and the disc 6 located in the baffle 8 rotates. At the same time, the cam 19 on the transmission shaft 3 rotates to press the pressure rod 1 20, so that the threaded rod 153 abutted at the end of the pressure rod 1 20 is lifted up. At the same time, the counterweight rod 152 located in the sleeve 151 is lifted up by the threaded rod 153, and the clamp 154 ​​located in the box body 2 18 is pushed up. When the clamp 154 ​​moves, it drives the entire lifting rod 21 to rotate, and the pressure rod 22 abutted at the other end of the lifting rod 21 begins to move downward;

[0041] As the cam 19 disengages from the end of the pressure rod 1 20, the pressure rod 22 is pressed down by the gravity of the counterweight rod 152, and at the same time drives the discharge plug 23 to move upward in the coal barrel 16. Through the movement of the discharge plug 23, coal is continuously discharged into the middle of the disc 6 along the bottom outlet of the coal barrel 16. Due to the centrifugal force generated by the rotation of the disc 6, the coal continuously rolls outward, and finally enters the discharge cover 14 through the interception of the movable baffle 10, and is discharged from the placement rack 1 along the pipeline connected to the end of the discharge cover 14.

[0042] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A precise coal blending system for avoiding disc coal spillage, comprising a placement rack (1), characterized in that: A motor (2) is fixed to the bottom bracket of the placement rack (1) by bolts, a box body (4) is fixed to the bottom bracket of the placement rack (1), a transmission shaft (3) is movably connected inside the box body (4), a transmission tooth (5) is sleeved and fixed on the outer wall of the transmission shaft (3), a disc (6) is movably connected to the top of the placement rack (1), the central axis of the disc (6) passes through the placement rack (1) and the box body (4) and is sleeved and fixed with a transmission tooth (7), and the transmission tooth (7) is meshingly connected with the transmission tooth (5); A baffle (8) is fixedly mounted on the top of the placement rack (1) and located on the outer wall of the disc (6); a receiving tray (9) is fixedly connected to the inner wall of the baffle (8) and located on the bottom of the disc (6); a movable baffle (10) is movably connected to the outer wall of one side of the baffle (8) via a bearing; and a discharge hood (14) is fixed to the baffle (8) on the side of the movable baffle (10) via bolts.

2. The precise coal blending system for avoiding disc coal scattering according to claim 1 is characterized by: A slider (11) is slidably connected in the top groove of the movable baffle (10), and a movable block (12) is movably connected to the top of the slider (11). A threaded rotating rod (13) is threadedly connected to the top of the baffle cover (8), and one end of the threaded rotating rod (13) passes through the movable block (12) and is threadedly connected to the movable block (12).

3. The precise coal blending system for avoiding disc coal scattering according to claim 2 is characterized in that: A locking mechanism (15) is installed on the top of the placement rack (1), a coal barrel (16) is sleeved and fixed on the top of the placement rack (1) and located on one side of the locking mechanism (15), a second box body (18) is fixed to the top of the coal barrel (16) by bolts, a feed port (17) is symmetrically installed on the top of the coal barrel (16), and the feed port (17) is connected to the coal barrel (16).

4. The precise coal blending system for avoiding disc coal scattering according to claim 3 is characterized in that: The locking mechanism (15) comprises a shaft sleeve (151) and a threaded rod (153); the top of the placement frame (1) is fixed with the shaft sleeve (151) by bolts; a counterweight rod (152) is slidably connected inside the shaft sleeve (151); one end of the counterweight rod (152) is threadedly sleeved and connected with the threaded rod (153); the other end of the counterweight rod (152) passes through the second box body (18) and is fixed with a chuck (154) by spot welding.

5. The precise coal blending system for avoiding disc coal scattering according to claim 4 is characterized in that: A cam (19) is sleeved and fixed on the transmission shaft (3) at the bottom of the placement rack (1), and a pressure rod (20) is rotatably connected to the bottom of the placement rack (1) and located on the side of the cam (19), and the other end of the pressure rod (20) is in contact with one end of the threaded rod (153).

6. The precise coal blending system for avoiding disc coal scattering according to claim 5 is characterized in that: A lifting rod (21) is rotatably connected to the second box body (18) via a bearing, a groove on one side of the lifting rod (21) is slidably engaged with the clamp (154), and the other end of the lifting rod (21) is slidably engaged with a second pressing rod (22).

7. The precise coal blending system for avoiding disc coal scattering according to claim 6 is characterized by: One end of the second pressure rod (22) passes through the coal barrel (16) and extends to the top of the disc (6); the second pressure rod (22) is located in the coal barrel (16) and is sleeved and fixed with a discharge plug (23); the end of the second pressure rod (22) is fixed with an impact block (24) by bolts, and the impact block (24) is in contact with the top of the disc (6).

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