Coke drum capable of automatically clearing powder and working method thereof

Abstract

The invention belongs to the technical field of coke mechanical strength measuring equipment, and particularly relates to a coke drum capable of automatically clearing powder and a working method of the coke drum. Comprising a support and a rotary drum, a gear motor is fixed to one side of the support, rotating shafts are connected to the top ends of the two sides of the support through bearing seats, the two rotating shafts are connected to the two sides of the rotary drum through one-way gears and inner gear rings respectively, the two rotating shafts penetrate through the rotary drum and then are jointly connected with a plurality of material lifting plates, and the material lifting plates make contact with the inner wall of the rotary drum through cleaning plates. The speed reducing motor is connected with any rotating shaft; and a material receiving tank is welded on the bracket below the rotary drum. According to the invention, the inner wall of the rotary drum can be cleaned, so that residual coke is swept into the material receiving tank, the accuracy of a coke mechanical strength experiment is ensured, manual sweeping is not needed, the labor intensity is reduced, and the workload is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of coke mechanical strength measuring equipment, and in particular relates to a coke drum capable of automatically cleaning powder and a working method thereof. Background Art

[0002] Coke drum is the equipment used for the mechanical strength test of coke. When in use, put the coke into the drum according to the amount. During the test, the drum rotates continuously as required, so that the coke and the drum wall and the coke collide and rub against each other, so that the coke breaks along the cracks and the surface is worn, so as to achieve the purpose of measuring the crushing strength and wear resistance. The drum includes brackets, drums, drive systems, counters, etc. The following deficiencies exist in the current use process: there is a lifting plate in the drum, but there is no automatic powder cleaning function. During the rotation of the drum, some powder is generated by the coke, which is attached to the inner wall of the drum. It is usually necessary to manually enter the drum to clean and collect it, otherwise it will affect the accuracy of the measurement results. Due to the large amount of dust, it needs to be left standing for a period of time for cleaning, the work efficiency is low, and the staff will inevitably inhale some dust, which is harmful to their health. In addition, coke also needs to be screened. Generally, the screening equipment is small and requires multiple discharges, but the amount of each discharge is not easy to control evenly. Too much or too little will affect the effect and efficiency of screening. Summary of the invention

[0003] The object of the present invention is to provide a coke drum capable of automatically cleaning coke powder and a working method thereof, so as to solve the problems existing in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A coke drum capable of automatically cleaning coke powder comprises a bracket and a drum. A reduction motor is fixed on one side of the bracket. The top ends of both sides of the bracket are connected to shafts through bearing seats. The two shafts are respectively connected to the two sides of the drum through one-way gears and inner gear rings. The two shafts penetrate the drum and are connected to a plurality of lifting plates. The lifting plates are in contact with the inner wall of the drum through cleaning plates. The reduction motor is connected to any one of the shafts. A receiving tank is welded on the bracket below the drum.

[0006] Furthermore, the one-way gear is fixed on the rotating shaft, the inner gear ring is fixed on both sides of the rotating drum, and the one-way gears on the two rotating shafts are respectively meshed with the inner gear rings on both sides of the rotating drum.

[0007] Furthermore, the lifting plate is in the shape of a gate, there are four lifting plates, the four lifting plates are welded in a circular array on two rotating shafts, a slot is provided on the outer edge of the lifting plate, the cleaning plate is located in the slot and fixed on the cleaning plate.

[0008] Furthermore, a long strip opening is provided on the cylindrical surface of the drum, the length of the opening is the distance between the inner walls of the two circular sides of the drum, a pressure plate is welded on the outer wall of the drum at the opening, a cover plate is inserted into the pressure plate, and the cover plate is bolted to the drum after passing through the pressure plate through a number of fixing bolts.

[0009] Furthermore, the cover plate is in the shape of an arc-shaped rectangle as a whole, covering the opening, the pressure plate is in the shape of an arc-shaped sun as a whole, the upper and lower ends of the pressure plate are bent, the bent ends of the pressure plate are welded to the drum, and a slide groove is provided on the inner wall of the arc-shaped surface of the pressure plate, the width of the slide groove is greater than twice the width of the cover plate, the length of the slide groove is the length of the cover plate, and the cover plate is located in the slide groove of the pressure plate.

[0010] Furthermore, both ends of the cover plate are provided with insertion holes, and limit rods are inserted into the insertion holes, and the limit rods pass through both ends of the pressure plate.

[0011] Furthermore, the upper end of the receiving tank is provided with a feed port, and a plurality of partitions are arranged in the receiving tank. The setting direction of the partitions is perpendicular to the length direction of the drum opening. The partitions divide the receiving tank into a plurality of storage chambers. A discharge port is provided at the bottom of each storage chamber, and a discharge valve is installed on the discharge port.

[0012] A method for operating a coke drum capable of automatically cleaning coke powder comprises the following steps:

[0013] (1) Inch-operate the reduction motor to rotate forward so that the opening of the drum faces upward, load the coke into the drum, slide the cover plate closed and bolt it in place;

[0014] (2) Turn on the reduction motor to rotate forward, so that the drum rotates under the meshing action of the one-way gear and the inner gear ring;

[0015] (3) After reaching a certain number of revolutions, the reduction motor is automatically turned off, and the opening of the drum is turned forward by jogging. The fixing bolts are loosened and removed, and the limit rods are inserted into the sockets on both sides of the cover plate. The reduction motor is further jogged to make the opening face downward. During this process, the limit rods are blocked by the bracket, which limits the cover plate from rotating. Thus, the opening of the drum is opened, and the coke falls into the receiving tank.

[0016] (4) During the falling process, the coke is divided into several equal portions by the partition and stored in their respective storage chambers;

[0017] (5) The reduction motor rotates in the reverse direction. Due to the characteristics of the one-way gear, the drum does not rotate with it during the reverse rotation. The lifting plate on the shaft rotates, and the cleaning plate cleans the residual coke powder on the inner wall of the drum and drops it into the receiving tank;

[0018] (6) After cleaning and letting it stand for 1-2 minutes, pull out the limit rod, rotate the reduction motor forward so that the opening of the drum faces upward, and carry out the next round of coke mechanical strength measurement.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention can clean the inner wall of the drum, thereby cleaning the residual coke into the receiving tank, thereby ensuring the accuracy of the coke mechanical strength test, without manual cleaning, reducing labor intensity and workload.

[0021] 2. The rotating shaft is connected to the drum through a one-way gear and an internal gear ring, so that forward rotation can be used for mechanical strength testing and reverse rotation can be used to clean the residual coke, which is easy to operate.

[0022] 3. The cover is limited by the limit rod, so that the cover can be opened automatically when discharging materials, without manual discharging, thus avoiding excessive dust in the discharging process and affecting the health of workers.

[0023] 4. By setting partitions in the receiving tank, the materials can be evenly distributed automatically during discharge, ensuring the stability of the single feed amount of the subsequent screening machine and avoiding affecting the efficiency and effect of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the rotary drum of the present invention.

[0026] Figure 3 The present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0027] Figure 4 It is a schematic structural diagram of the pressing plate and the cover plate facing the drum side of the present invention.

[0028] Figure 5 It is a schematic diagram of the bottom structure of the drum during material discharge of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the material receiving tank of the present invention.

[0030] Among them: 1. bracket; 2. drum; 3. reduction motor; 4. bearing seat; 5. rotating shaft; 6. one-way gear; 7. inner ring gear; 8. lifting plate; 9. cleaning plate; 10. receiving tank; 11. slot; 12. opening; 13. pressure plate; 14. cover plate; 15. fixing bolt; 16. slide slot; 17. socket; 18. limit rod; 19. partition; 20. discharge valve. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] Embodiment 1:

[0033] like Figure 1-6 As shown, a coke drum capable of automatically cleaning powder includes a bracket 1 and a drum 2. A reduction motor 3 is fixed on one side of the bracket 1. The top ends of both sides of the bracket 1 are connected to a shaft 5 through a bearing seat 4. The two shafts 5 are respectively connected to the two sides of the drum 2 through a one-way gear 6 and an inner gear ring 7. After the two shafts 5 penetrate the drum 2, they are commonly connected to a plurality of lifting plates 8. The lifting plates 8 are in contact with the inner wall of the drum 2 through a cleaning plate 9. The reduction motor 3 is connected to any one of the shafts 5. A receiving tank 10 is welded on the bracket 1 below the drum 2. The reduction motor 3 is usually formed by connecting a reducer and a motor, which belongs to the prior art. How to control the rotation of the drum 2, how to adjust the current rotation speed of the drum 2, how to count the number of revolutions of the drum 2, etc. are all prior art and will not be repeated here.

[0034] The one-way gear 6 is fixed on the rotating shaft 5, and the inner gear ring 7 is fixed on both sides of the rotating drum 2. The one-way gears 6 on the two rotating shafts 5 are respectively meshed with the inner gear rings 7 on both sides of the rotating drum 2. The one-way gear 6 is a commonly used gear type in the prior art. When it rotates in one direction, it can drive the gear to rotate, thereby driving other structures to rotate through the gear on it, and when it rotates in the other opposite direction, the gear is idle and cannot drive other structures to rotate through the gear.

[0035] The lifting plate 8 is in the shape of a gate, and there are four lifting plates 8. The four lifting plates 8 are welded in a circular array on the two rotating shafts 5. A slot 11 is provided on the outer edge of the lifting plate 8. The cleaning plate 9 is located in the slot 11 and fixed on the cleaning plate 9. The function of the lifting plate 8 is to lift the material upward when the drum 2 rotates, so that the coke is turned in the drum 2. When discharging the material, the inner wall of the drum 2 is cleaned by reverse rotation.

[0036] A long strip opening 12 is provided on the cylindrical surface of the drum 2, and the length of the opening 12 is the distance between the inner walls of the two circular side surfaces of the drum 2. A pressure plate 13 is welded on the outer wall of the drum 2 at the opening 12, and a cover plate 14 is inserted into the pressure plate 13. The cover plate 14 is bolted to the drum 2 after passing through the pressure plate 13 through a plurality of fixing bolts 15.

[0037] The cover plate 14 is in an arc-shaped rectangle as a whole, and covers the opening 12. The pressing plate 13 is in an arc-shaped Japanese character shape as a whole, and the upper and lower ends of the pressing plate 13 are bent. The bent end of the pressing plate 13 is welded to the drum 2. A slide groove 16 is provided on the inner wall of the arc-shaped surface of the pressing plate 13. The width of the slide groove 16 is greater than twice the width of the cover plate 14, and the length of the slide groove 16 is the length of the cover plate 14. The cover plate 14 is located in the slide groove 16 of the pressing plate 13. The cover plate 14 is used to cover the opening 12. The cover plate 14 can slide in the slide groove 16, and slide to make way for the opening 12 when discharging materials. It is fixed to the drum 2 by fixing bolts 15 during normal operation.

[0038] The cover plate 14 is provided with a plug hole 17 at both ends, and a limit rod 18 is inserted into the plug hole 17, and the limit rod 18 passes through the two ends of the pressing plate 13. The limit rod 18 is used to limit the cover plate 14 when discharging materials, so that the cover plate 14 is automatically opened.

[0039] The upper end of the receiving tank 10 has a feed port, and a plurality of partitions 19 are arranged in the receiving tank 10. The setting direction of the partitions 19 is perpendicular to the length direction of the opening 12 of the drum 2. The partitions 19 divide the receiving tank 10 into a plurality of storage chambers. Each storage chamber has a discharge port at the bottom, and a discharge valve 20 is installed on the discharge port. After the coke is discharged, it needs to be screened. In order to save costs, the screening machine is usually not large, so the coke in the drum 2 needs to be put into the screening machine several times, which requires equal distribution. Otherwise, too much material is divided at a time, which will increase the burden on the screening machine and the screening effect is not good. If too little material is divided at a time, the last material division will cause the feed amount of the screening machine to exceed, and the material has to be divided again, which affects the work efficiency. When feeding through the long strip opening 12, the coke is evenly divided at the same time. It does not need to be divided very accurately. The number of partitions 19 can be set according to the feed amount of the screening machine. For example, the coke in the drum 2 can meet the feed amount of the screening machine four times. Then three partitions 19 are added to the receiving tank 10 to form four storage chambers. The positions of the partitions 19 are not necessarily evenly distributed. For example, the storage chambers on both sides should be larger to prevent the coke from spilling.

[0040] Example 2: This example provides a method for operating a coke drum capable of automatically cleaning coke powder, and the method steps are implemented based on Example 1.

[0041] A method for operating a coke drum capable of automatically cleaning coke powder comprises the following steps:

[0042] (1) Inching the reduction motor 3 to rotate forward so that the opening 12 of the drum 2 faces upward, loading the coke into the drum 2, sliding the cover plate 14 closed and bolting it in place;

[0043] (2) Turn on the reduction motor 3 to rotate in the forward direction, so that the drum 2 rotates under the meshing action of the one-way gear 6 and the inner gear ring 7;

[0044] (3) After reaching a certain number of revolutions, the reduction motor 3 is automatically turned off, and the opening 12 of the drum 2 is moved forward by jogging. The fixing bolts 15 are loosened and removed, and the limit rods 18 are inserted into the sockets 17 on both sides of the cover plate 14. The reduction motor 3 is continued to be jogged to make the opening 12 face downward. During this process, the limit rods 18 are blocked by the bracket 1, which limits the cover plate 14 from rotating accordingly, so that the opening 12 of the drum 2 is opened, and the coke falls into the receiving tank 10.

[0045] (4) During the falling process, the coke is divided into several equal portions by the partition 19 and stored in their respective storage chambers;

[0046] (5) The reduction motor 3 rotates in the reverse direction. Due to the characteristics of the one-way gear 6, the drum 2 does not rotate with it during the reverse rotation. The lifting plate 8 on the rotating shaft 5 rotates, and the cleaning plate 9 cleans the residual coke powder on the inner wall of the drum 2 and drops it into the receiving tank 10;

[0047] (6) After cleaning and standing for 1-2 minutes, the limit rod 18 is pulled out, and the reduction motor 3 is rotated forward so that the opening 12 of the drum 2 faces upward, and the next round of coke mechanical strength measurement is carried out.

[0048] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should all fall within the scope of protection of the present invention.

[0049] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A coke drum capable of automatically cleaning coke powder, characterized in that: It includes a bracket and a rotating drum. A reduction motor is fixed on one side of the bracket. The top ends of both sides of the bracket are connected with rotating shafts through bearing seats. The two rotating shafts are respectively connected to the two sides of the rotating drum through one-way gears and inner gear rings. The two rotating shafts pass through the rotating drum and are commonly connected to a plurality of lifting plates. The lifting plates are in contact with the inner wall of the rotating drum through cleaning plates. The reduction motor is connected to any rotating shaft. A receiving tank is welded on the bracket below the rotating drum.

2. The coke drum capable of automatic powder cleaning according to claim 1, characterized in that: The one-way gear is fixed on the rotating shaft, the inner gear ring is fixed on both sides of the rotating drum, and the one-way gears on the two rotating shafts are respectively meshed with the inner gear rings on both sides of the rotating drum.

3. The coke drum capable of automatic powder cleaning according to claim 1, characterized in that: The lifting plate is in the shape of a gate, there are four lifting plates, the four lifting plates are welded in a circular array on two rotating shafts, a slot is provided on the outer edge of the lifting plate, the cleaning plate is located in the slot and fixed on the cleaning plate.

4. The coke drum capable of automatic powder cleaning according to claim 1, characterized in that: A long strip opening is provided on the cylindrical surface of the drum, and the length of the opening is the distance between the inner walls of the two circular side surfaces of the drum. A pressure plate is welded on the outer wall of the drum at the opening, and a cover plate is inserted into the pressure plate. The cover plate is bolted to the drum after passing through the pressure plate through a number of fixing bolts.

5. The coke drum capable of automatic powder cleaning according to claim 4, characterized in that: The cover plate is in the shape of an arc-shaped rectangle as a whole, and covers the opening. The pressing plate is in the shape of an arc-shaped sun as a whole, and the upper and lower ends of the pressing plate are bent. The bent ends of the pressing plate are welded to the rotating drum. A sliding groove is provided on the inner wall of the arc-shaped surface of the pressing plate. The width of the sliding groove is greater than twice the width of the cover plate, and the length of the sliding groove is the length of the cover plate. The cover plate is located in the sliding groove of the pressing plate.

6. The coke drum capable of automatic powder cleaning according to claim 5, characterized in that: Insertion holes are provided at both ends of the cover plate, and limiting rods are inserted into the insertion holes, and the limiting rods pass through the two ends of the pressing plate.

7. The coke drum capable of automatic powder cleaning according to claim 1, characterized in that: The upper end of the receiving tank is provided with a feed port, and a plurality of partitions are arranged in the receiving tank. The setting direction of the partitions is perpendicular to the length direction of the drum opening. The partitions divide the receiving tank into a plurality of storage chambers. A discharge port is arranged at the bottom of each storage chamber, and a discharge valve is installed on the discharge port.

8. A method for operating a coke drum capable of automatically cleaning coke powder according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Inch-operate the reduction motor to rotate forward so that the opening of the drum faces upward, load the coke into the drum, slide the cover plate closed and bolt it in place; (2) Turn on the reduction motor to rotate forward, so that the drum rotates under the meshing action of the one-way gear and the inner gear ring; (3) After reaching a certain number of revolutions, the reduction motor is automatically turned off, and the opening of the drum is turned forward by jogging. The fixing bolts are loosened and removed, and the limit rods are inserted into the sockets on both sides of the cover plate. The reduction motor is further jogged to make the opening face downward. During this process, the limit rods are blocked by the bracket, which limits the cover plate from rotating. Thus, the opening of the drum is opened, and the coke falls into the receiving tank. (4) During the falling process, the coke is divided into several equal portions by the partition and stored in their respective storage chambers; (5) The reduction motor rotates in the reverse direction. Due to the characteristics of the one-way gear, the drum does not rotate with it during the reverse rotation. The lifting plate on the shaft rotates, and the cleaning plate cleans the residual coke powder on the inner wall of the drum and drops it into the receiving tank; (6) After cleaning and letting it stand for 1-2 minutes, pull out the limit rod, rotate the reduction motor forward so that the opening of the drum faces upward, and carry out the next round of coke mechanical strength measurement.

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