A continuous particle size monitoring device for petroleum coke

Abstract

The present application belongs to the technical field of petroleum coke particle size testing, and particularly relates to a continuous particle size monitoring device for petroleum coke, comprising: a monitoring box, a partition is fixedly connected in the monitoring box, the monitoring box is divided into a transmission chamber and a monitoring chamber by the partition, an inner top wall of the monitoring chamber is fixedly connected with a conveying pipe, the conveying pipe is communicated with the outside and the monitoring chamber, and an inner top wall of the monitoring box is fixedly connected with a monitoring device; and a fluidization drying mechanism, which is used for conveying petroleum coke in a suspended fluidized state, and comprises a gas guide box fixedly connected to an inner bottom wall of the monitoring chamber. The fluidization drying mechanism is arranged, in the process of conveying and particle size monitoring of petroleum coke, the petroleum coke particles are suspended and fluidized by air flow, the petroleum coke is dried and dispersed by collision of air flow and the petroleum coke, and moisture in the petroleum coke is removed, so that the petroleum coke is prevented from being bonded, and the accuracy of particle size monitoring of the petroleum coke is improved.

Description

Technical Field

[0001] This invention belongs to the field of petroleum coke particle size testing technology, and in particular relates to a continuous particle size monitoring device for petroleum coke. Background Technology

[0002] Petroleum coke is a solid byproduct produced during petroleum refining, primarily derived from the delayed coking process. It is a carbon-rich substance, appearing as black granules or powder, with high energy content and relatively low sulfur and nitrogen content.

[0003] In the use of petroleum coke, its particle size directly affects its combustion and reaction performance. Particles that are too large or too small will lead to inconsistent physicochemical properties, impacting the quality of the final product. For example, excessively coarse particles may not burn completely, resulting in reduced combustion efficiency; while excessively fine particles may increase resistance, making transportation or handling difficult. Therefore, it is necessary to monitor the particle size of the produced petroleum coke during use. Continuous particle size monitoring equipment can provide real-time feedback on changes in the particle size distribution of petroleum coke during use, ensuring consistent particle size and avoiding low combustion efficiency due to particle size fluctuations, thus achieving full utilization of energy.

[0004] However, existing continuous particle size monitoring equipment for petroleum coke still has the following technical problems in the process of monitoring petroleum coke:

[0005] After the petroleum coke is produced, it needs to be stored. When it is used, the stored petroleum coke is directly transported and its particle size is monitored. Only petroleum coke that meets the specifications is burned. However, during the storage of petroleum coke, the moisture in the air can easily cause the petroleum coke to stick together, resulting in a lower content of petroleum coke that meets the specifications when the particle size is monitored later, which affects the accuracy of the petroleum coke particle size monitoring.

[0006] During the monitoring of petroleum coke, petroleum coke of different particle sizes will mix and accumulate at the monitoring location, further reducing the accuracy of petroleum coke particle size monitoring. Summary of the Invention

[0007] The purpose of this invention is to address the problems mentioned in the background art by providing a continuous particle size monitoring device for petroleum coke that can use airflow to suspend and fluidize petroleum coke particles, dry and disperse the petroleum coke through the collision between the airflow and the petroleum coke, remove moisture from the petroleum coke, and thus prevent the petroleum coke from sticking together.

[0008] To achieve the above objectives, the present invention adopts the following technical solutions:

[0009] A continuous particle size monitoring device for petroleum coke, comprising:

[0010] The monitoring box is internally fixedly connected with a partition plate, the monitoring box is divided into a transmission chamber and a monitoring chamber by the partition plate, an inner top wall of the monitoring chamber is fixedly connected with a conveying pipe, the conveying pipe is communicated with the outside and the monitoring chamber, and an inner top wall of the monitoring box is fixedly connected with a monitoring device.

[0011] The fluidized drying mechanism is used for conveying petroleum coke in a suspended fluidized state, and comprises a gas guide box fixedly connected to the inner bottom wall of the monitoring chamber, a plurality of linearly arrayed air exhaust grooves are formed in the upper end of the gas guide box, the bottom end of the monitoring box is fixedly connected with an air compressor, and the output end of the air compressor is communicated with the inside of the gas guide box.

[0012] The uniform material mechanism is used for scattering petroleum coke during the conveying process of the petroleum coke.

[0013] Preferably, a plurality of linearly arrayed heating rods are rotationally connected in the gas guide box, a second motor is fixedly connected to one side of the outer wall of the gas guide box, the output end of the second motor is fixedly connected with one of the heating rods, a heat insulation layer is arranged at the connection position between the output end of the second motor and the heating rod, a heat insulation guide rod is fixedly connected to the end of each of the plurality of heating rods away from the second motor, the plurality of heat insulation guide rods are connected through chain transmission, and the plurality of heating rods are connected in parallel to an external power supply.

[0014] Preferably, the uniform material mechanism comprises a rotating sleeve rotationally connected to the upper wall of the monitoring box, an L-shaped plate is fixedly connected to the top end of the monitoring box, a fixed rod is fixedly connected to the lower end of the L-shaped plate, the fixed rod extends into the rotating sleeve and is fixedly connected with a first bevel gear, two symmetrically distributed rotating rods are rotationally connected to the circumferential wall of the rotating sleeve, the part of the rotating rods in the rotating sleeve is fixedly connected with a second bevel gear, the second bevel gear and the first bevel gear are meshed with each other, the part of the rotating rods outside the rotating sleeve is fixedly connected with stirring blades, and the upper end of the monitoring box is provided with a driving assembly for driving the rotating sleeve to rotate relative to the fixed rod.

[0015] Preferably, the driving assembly comprises a first motor fixedly connected to the upper end of the monitoring box, a gear is fixedly connected to the output end of the first motor, a first tooth ring is fixedly connected to the circumferential wall of the rotating sleeve at a position above the monitoring box, and the gear and the first tooth ring are meshed with each other.

[0016] Preferably, the monitoring box is provided with a floating mechanism at a position above the gas guide box for driving the petroleum coke to float up and down during the process of suspension fluidized conveying, the floating mechanism comprises a plurality of baffle plates which are slidingly connected to the inner wall of the exhaust groove along the length direction of the exhaust groove, a plurality of exhaust holes are arranged in linear array on each baffle plate, the baffle plates are staggered, a plurality of threaded sleeves are rotatably connected to the upper end of the gas guide box, the number of the threaded sleeves is half of the number of the baffle plates, the threaded sleeves are equidistantly arranged between the two staggered baffle plates, a threaded rod is threadedly connected in the threaded sleeve, a second gear ring is fixedly connected to the circumferential wall of each threaded sleeve, a rack is fixedly connected to the baffle plate on both sides of the threaded sleeve, the two racks are engaged with the two sides of the second gear ring respectively, a lifting rod is linearly slidingly connected to the position above the gas guide box in the monitoring box, and the threaded rod is fixedly connected to the lower end of the lifting rod.

[0017] Preferably, the friction coefficient between the threaded rod and the threaded sleeve is less than the tangent value of the helix angle of the threaded screw.

[0018] Preferably, a limiting groove is arranged on the baffle plate, one end of the lifting rod extends to the inside of the transmission chamber through the limiting groove, a sealing block is sealingly and slidingly connected to the position above and below the limiting groove in the baffle plate, and the sealing block and the inside of the baffle plate are elastically connected by a first spring.

[0019] Preferably, a transmission assembly is arranged in the position above the gas guide box in the monitoring box and in the transmission chamber for driving the floating mechanism to work through the transmission assembly while the driving assembly drives the material uniformizing mechanism to work, the transmission assembly comprises a connecting rod which is fixedly connected to the upper end of the lifting rod, the connecting rod extends to the position above the monitoring box and is fixedly connected with a transmission plate, a second spring is arranged between the transmission plate and the upper end of the monitoring box, a transmission rod is rotatably connected to the L-shaped plate through a mounting block, a bevel gear set is arranged between the transmission rod and the output end of the first motor, a cam is fixedly connected to the end of the transmission rod away from the bevel gear set, and the cam periodically abuts against and pushes the transmission plate to move downward.

[0020] Compared with the prior art, the continuous particle size monitoring device for petroleum coke has the following advantages:

[0021] 1. The fluidized drying mechanism is arranged, in the process of conveying and particle size monitoring of petroleum coke, high pressure gas is conveyed into the air guide tank through the air compressor, and is further discharged through a plurality of exhaust slots, the petroleum coke particles are suspended and fluidized by the air flow, the petroleum coke is dried and dispersed by the collision of the air flow and the petroleum coke, the moisture in the petroleum coke is removed, so that the petroleum coke is prevented from sticking, the accuracy of the petroleum coke particle size monitoring is improved, mechanical contact damage to the petroleum coke is avoided, and the combustion efficiency of the petroleum coke in use is ensured.

[0022] 2. The second motor drives one of the heating rods to rotate, and a plurality of heating rods are driven to rotate synchronously through chain transmission, so that the high pressure gas in the air guide tank is uniformly heated, and the drying and dispersing effect of the petroleum coke is improved through the contact of the hot air flow and the petroleum coke.

[0023] 3. The uniform material mechanism is arranged, before the monitoring device monitors the petroleum coke, the driving assembly drives the rotating sleeve to rotate relative to the fixed rod, the rotating rod drives the stirring blade to rotate, the petroleum coke is scattered by the stirring blade before flowing below the monitoring device, the dispersion of the petroleum coke in the monitoring process is improved, the petroleum coke particles maintain a stable flow state when conveyed to the monitoring area, and the accumulation and mutual interference of the petroleum coke particles are reduced.

[0024] 4. The floating mechanism is arranged, during the suspension and fluidization treatment of the petroleum coke, the lifting rod reciprocatingly vertically displaces, drives the threaded rod to reciprocatingly vertically displace, drives the two side shielding plates to reciprocatingly move close to each other and away from each other, the air amount discharged from the air hole of the shielding plate is lower than that discharged from other positions of the exhaust slot, the air amount difference causes the petroleum coke particles to float up and down during the suspension and fluidization, and the dispersion of the petroleum coke is further improved.

[0025] 5. The driving assembly and the transmission assembly are arranged, in use, the first motor can not only drive the uniform material mechanism to work through the gear and the first tooth ring, but also drive the floating mechanism to work through the bevel gear set, the transmission rod, the cam and the transmission plate, so that an additional driving source is not needed, and processing cost is saved. DETAILED DESCRIPTION

[0026] Figure 1 is a perspective structural schematic view of the present application;

[0027] Figure 2 is a sectional view structural schematic view of the present application;

[0028] Figure 3 is Figure 2 the enlarged view of A in the figure.

[0029] Figure 4 is a sectional structure schematic diagram of another aspect of the present application;

[0030] Figure 5 is Figure 4 is an enlarged view of B in FIG. 4;

[0031] Figure 6 is Figure 4 is an enlarged view of C in FIG. 4;

[0032] Figure 7 is a sectional structure schematic diagram of the rotating sleeve in the present application.

[0033] In the figure: 1, monitoring box; 11, partition; 12, transmission chamber; 13, monitoring chamber; 14, conveying pipe; 15, monitoring device; 2, fluidized drying mechanism; 21, air guide box; 22, exhaust groove; 23, air compressor; 24, heating rod; 25, second motor; 26, heat insulation guide rod; 3, material uniformizing mechanism; 31, rotating sleeve; 32, L-shaped plate; 33, fixed rod; 34, first bevel gear; 35, rotating rod; 36, second bevel gear; 37, stirring blade; 38, driving assembly; 381, first motor; 382, gear; 383, first toothed ring; 39, transmission assembly; 391, connecting rod; 392, transmission plate; 393, second spring; 394, transmission rod; 395, bevel gear set; 396, cam; 4, floating mechanism; 41, shielding plate; 42, exhaust hole; 43, threaded sleeve; 44, threaded rod; 45, second toothed ring; 46, rack; 47, lifting rod; 5, limiting groove; 51, sealing block. DETAILED DESCRIPTION

[0034] The following examples are for illustrative purposes only and are not intended to limit the scope of the present application.

[0035] Example: with reference to Figures 1 to 7 A continuous particle size monitoring device for petroleum coke comprises:

[0036] A monitoring box 1 is internally fixedly connected with a partition 11, the monitoring box 1 is divided into a transmission chamber 12 and a monitoring chamber 13 by the partition 11, an inner top wall of the monitoring chamber 13 is fixedly connected with a conveying pipe 14, the conveying pipe 14 is communicated with the outside and the monitoring chamber 13, and an inner top wall of the monitoring box 1 is fixedly connected with a monitoring device 15.

[0037] Specifically, the monitoring device 15 adopts a commonly used laser detector, which is a mature technology and will not be described in detail here.

[0038] The fluidized drying mechanism 2 is used for conveying petroleum coke in a suspended fluidized state, and comprises a gas guide box 21 fixedly connected to the bottom wall of the monitoring chamber 13, wherein the upper end of the gas guide box 21 is provided with a plurality of linearly arrayed air outlet grooves 22, and the bottom end of the monitoring box 1 is fixedly connected with an air compressor 23, and the output end of the air compressor 23 is in communication with the inside of the gas guide box 21.

[0039] Specifically, the air outlet direction of the air outlet groove 22 forms an angle of 30° with the horizontal, forming a spiral upward airflow field, which can suspend and fluidize the petroleum coke particles while conveying the petroleum coke.

[0040] In view of the problem that the moisture in the air in the prior art can easily cause the petroleum coke to be bonded, resulting in less petroleum coke content meeting the regulations during subsequent particle size monitoring of the petroleum coke, affecting the particle size monitoring accuracy of the petroleum coke, the fluidized drying mechanism 2 is arranged, in the process of conveying and particle size monitoring of the petroleum coke, the petroleum coke is conveyed into the monitoring box 1 through the conveying pipe 14, then high-pressure gas is conveyed into the gas guide box 21 through the air compressor 23, and is further discharged through the plurality of air outlet grooves 22, the petroleum coke particles are suspended and fluidized by the airflow, and finally the particle size of the petroleum coke in the suspended and fluidized state is monitored by the monitoring device 15, so that the petroleum coke can be dried and dispersed through the collision of the airflow and the petroleum coke, the moisture in the petroleum coke is removed, the petroleum coke is prevented from being bonded, the particle size monitoring accuracy of the petroleum coke is improved, mechanical contact damage to the petroleum coke is avoided, and the combustion efficiency of the petroleum coke during use is ensured.

[0041] A plurality of linearly arrayed heating rods 24 are rotatably connected in the gas guide box 21, a second motor 25 is fixedly connected to one side outer wall of the gas guide box 21, the output end of the second motor 25 is fixedly connected with one of the heating rods 24, a heat insulation layer is arranged at the connection position between the output end of the second motor 25 and the heating rod 24, heat insulation guide rods 26 are fixedly connected to the ends of the plurality of heating rods 24 away from the second motor 25, the plurality of heat insulation guide rods 26 are connected through chain transmission, and the plurality of heating rods 24 are connected in parallel and connected with an external power supply.

[0042] Specifically, the heat insulation layer and the heat insulation guide rods 26 are made of high-efficiency heat insulation materials, such as one of vacuum heat insulation plates and graphene, which have excellent heat insulation effect, so as to ensure that the heat insulation layer and the heat insulation guide rods 26 can effectively prevent heat transfer of the heating rods 24, and avoid the influence of high temperature on the structure of the second motor 25 and the chain transmission part.

[0043] Specifically, the sealing plate is arranged between the air guide box 21 and the partition plate 11, which can avoid the petroleum coke from falling into the chain transmission position of the plurality of heat insulation guide rods 26 during the conveying process, and avoid affecting the rotation of the plurality of heating rods 24.

[0044] It is worth mentioning that, by arranging the heating rod 24, when the high-pressure gas flows through the air guide box 21, one of the heating rods 24 can be driven to rotate by the second motor 25, and the plurality of heating rods 24 are driven to rotate synchronously by the chain transmission, so that the high-pressure gas in the air guide box 21 is uniformly heated, and the drying and dispersion effect of the petroleum coke is improved through the contact between the hot gas flow and the petroleum coke.

[0045] The material uniformizing mechanism 3 is used for scattering the petroleum coke during the conveying process, and the material uniformizing mechanism 3 comprises a rotating sleeve 31 which is rotatably connected to the upper wall of the monitoring box 1, the top end of the monitoring box 1 is fixedly connected with an L-shaped plate 32, the lower end of the L-shaped plate 32 is fixedly connected with a fixed rod 33, the fixed rod 33 extends into the rotating sleeve 31 and is fixedly connected with a first bevel gear 34, two symmetrical rotating rods 35 are rotatably connected to the circumferential wall of the rotating sleeve 31, the part of the rotating rod 35 located in the rotating sleeve 31 is fixedly connected with a second bevel gear 36, the second bevel gear 36 is meshed with the first bevel gear 34, the part of the rotating rod 35 located outside the rotating sleeve 31 is fixedly connected with an agitating blade 37, and the upper end of the monitoring box 1 is provided with a driving assembly 38 for driving the rotating sleeve 31 to rotate relative to the fixed rod 33.

[0046] Specifically, the agitating blade 37 on the rotating sleeve 31 adopts a turbine structure, the blade inclination angle is 15°, the rotating speed is controlled to be 500-1500 rpm, the shear force generated by the blade rotation only acts on the range of 100 mm at the outlet of the conveying pipe 14, does not affect the particle flow state of the monitoring area, and does not affect the suspension and conveying of the petroleum coke particles.

[0047] Specifically, the driving assembly 38 comprises a first motor 381 fixedly connected to the upper end of the monitoring box 1, a gear 382 is fixedly connected to the output end of the first motor 381, a first tooth ring 383 is fixedly connected to the circumferential wall of the rotating sleeve 31 located above the monitoring box 1, and the gear 382 is meshed with the first tooth ring 383.

[0048] The present application can solve the problem that the petroleum coke is mixed and accumulated at the monitoring position in the prior art, further reducing the accuracy of the particle size monitoring of the petroleum coke. The uniform material mechanism 3 is arranged. Before the monitoring device 15 monitors the petroleum coke, the driving assembly 38 drives the rotating sleeve 31 to rotate relative to the fixed rod 33, so that the rotating rod 35 on the rotating sleeve 31 moves in a circular motion along the fixed rod 33, and in the process, the fixed first bevel gear 34 drives the second bevel gear 36 to rotate, so that the rotating rod 35 drives the stirring blade 37 to rotate. The petroleum coke is scattered by the stirring blade 37 before flowing to the lower side of the monitoring device 15, the dispersion of the petroleum coke in the monitoring process is improved, the petroleum coke particles maintain a stable flow state when being conveyed to the monitoring area, the accumulation and mutual interference of the petroleum coke particles are reduced, and the accuracy of the particle size monitoring is further improved.

[0049] The monitoring box 1 is provided with a floating mechanism 4 above the air guide box 21, which is used to drive the petroleum coke to float up and down during the process of suspension fluidization conveying. The floating mechanism 4 comprises a plurality of shielding plates 41 which are slidingly connected to the inner wall of the exhaust groove 22 along the length direction of the exhaust groove 22. A plurality of linearly arrayed exhaust holes 42 are formed in each shielding plate 41. The plurality of shielding plates 41 are staggered. The upper end of the air guide box 21 is rotatably connected with a plurality of threaded sleeves 43. The number of the threaded sleeves 43 is half of the number of the shielding plates 41. The threaded sleeves 43 are equally distributed between the two staggered shielding plates 41. The threaded sleeves 43 are threadedly connected with threaded rods 44. A second gear ring 45 is fixedly connected to the circumferential side wall of each threaded sleeve 43. A rack 46 is fixedly connected to the shielding plates 41 located on both sides of the threaded sleeve 43. The two racks 46 are respectively engaged with the two sides of the second gear ring 45. A lifting rod 47 is linearly slidingly connected to the position above the air guide box 21 in the monitoring box 1. The threaded rod 44 is fixedly connected to the lower end of the lifting rod 47.

[0050] Specifically, although the particle size of the petroleum coke is different, during the process of the fluidized drying mechanism 2 performing suspension fluidization treatment on the petroleum coke and the floating mechanism 4 driving the petroleum coke to float up and down, the smallest petroleum coke particles will not float to contact the monitoring device 15, and the largest petroleum coke particles will not sink to fall into the air guide box 21, so that the coverage range of the petroleum coke movement is initially between the monitoring device 15 and the air guide box 21.

[0051] Specifically, the friction coefficient between the threaded rod 44 and the threaded sleeve 43 is less than the tangent value of the helix angle of the thread, so that the threaded rod 44 and the threaded sleeve 43 are in a non-self-locking state, that is, the displacement of the threaded rod 44 can drive the threaded sleeve 43 to rotate.

[0052] Specifically, the limiting groove 5 is arranged on the partition plate 11, one end of the lifting rod 47 penetrates the partition plate 11 through the limiting groove 5 and extends to the inside of the transmission chamber 12, the sealing blocks 51 are sealingly and slidably connected above and below the limiting groove 5 in the partition plate 11, and the sealing blocks 51 and the inside of the partition plate 11 are elastically connected through the first springs, so that the sealing blocks 51 above and below the lifting rod 47 can be tightly attached to the lifting rod 47 under the elastic force of the first springs, regardless of the lifting rod 47 being in the rising state or the falling state, so as to prevent the petroleum coke from overflowing from the limiting groove 5 into the transmission chamber 12 and ensure the normal operation of the subsequent transmission assembly 39.

[0053] It should be noted that, by arranging the floating mechanism 4, the reciprocating vertical displacement of the lifting rod 47 can drive the threaded rod 44 to reciprocatingly vertically displace during the suspension fluidization treatment of the petroleum coke, the threaded rod 44 and the threaded sleeve 43 are in a non-self-locking state, so that the vertical displacement of the threaded rod 44 drives the threaded sleeve 43 to rotate, thereby driving the second gear ring 45 to reciprocatingly rotate in opposite directions, and further driving the two blocking plates 41 to reciprocatingly move towards or away from each other through the rack 46, the amount of air discharged from the air holes 42 on the blocking plates 41 is lower than that discharged from other positions of the air exhaust groove 22, and the difference in the amount of air can cause the petroleum coke particles to float up and down during the suspension fluidization, thereby further improving the dispersity of the petroleum coke.

[0054] The transmission assembly 39 is arranged above the air guide box 21 in the monitoring box 1 and in the transmission chamber 12, and is used to drive the floating mechanism 4 to work through the transmission assembly 39 while the driving assembly 38 drives the uniform material mechanism 3 to work, the transmission assembly 39 comprises a connecting rod 391 fixedly connected to the upper end of the lifting rod 47, the connecting rod 391 penetrates and extends to the upper end of the monitoring box 1 and is fixedly connected with a transmission plate 392, the second spring 393 is arranged between the transmission plate 392 and the upper end of the monitoring box 1, the transmission rod 394 is rotatably connected to the L-shaped plate 32 through the mounting block, the bevel gear set 395 is arranged between the transmission rod 394 and the output end of the first motor 381, the cam 396 is fixedly connected to the end of the transmission rod 394 away from the bevel gear set 395, and the cam 396 periodically abuts against and pushes the transmission plate 392 to downwardly displace.

[0055] In addition, the driving assembly 38 and the transmission assembly 39 are arranged, so that, in use, the first motor 381 can not only drive the uniform material mechanism 3 to work through the gear 382 and the first tooth ring 383, but also drive the lifting rod 47 to reciprocatingly vertically displace through the bevel gear set 395, the transmission rod 394, the cam 396 and the transmission plate 392, so that, while the driving assembly 38 drives the uniform material mechanism 3 to work, the lifting rod 47 is driven to reciprocatingly displace downward through the transmission assembly 39 and reciprocatingly displace upward to reset under the elastic force of the second spring 393, thereby driving the floating mechanism 4 to work, without the need of arranging an additional driving source, thereby saving the processing cost.

[0056] The function principle of the present application can be described by the following operation mode:

[0057] The petroleum coke is conveyed into the monitoring box 1 through the conveying pipe 14, then the high-pressure gas is conveyed into the air guide box 21 through the air compressor 23 and is further discharged through the plurality of air discharge grooves 22, the petroleum coke particles are suspended and fluidized by the air flow, finally the particle size of the petroleum coke in the suspended and fluidized state is monitored through the monitoring device 15, the petroleum coke after the monitoring is completed falls on the inclined guide plate and is further slid into the combustion tank for combustion, when the monitoring device 15 monitors that the particle size of the petroleum coke does not meet the regulation, the alarm device arranged at the upper end of the monitoring box 1 is started, and the worker timely stops and detects, thereby realizing the continuous monitoring and use of the petroleum coke.

[0058] In the monitoring process, one of the heating rods 24 is driven to rotate by the second motor 25, and the plurality of heating rods 24 are synchronously driven to rotate by the chain transmission, thereby uniformly heating the high-pressure gas in the air guide box 21.

[0059] In the monitoring process, the first motor 381 is started, the rotating sleeve 31 is driven to rotate relative to the fixed rod 33 through the gear 382 and the first tooth ring 383, thereby the rotating rod 35 on the rotating sleeve 31 is driven to perform the circumferential motion along the fixed rod 33, and in this process, the second bevel gear 36 is driven to rotate through the fixed first bevel gear 34, thereby the rotating rod 35 drives the stirring blade 37 to rotate, and the petroleum coke is scattered by the stirring blade 37 before flowing to the lower side of the monitoring device 15.

[0060] In the monitoring process, the first motor 381 further drives the lifting rod 47 to reciprocatingly vertically displace through the bevel gear set 395, the transmission rod 394, the cam 396 and the transmission plate 392, drives the threaded rod 44 to reciprocatingly vertically displace, thereby drives the second tooth ring 45 to reciprocatingly rotate in the opposite direction, further drives the two shielding plates 41 to reciprocatingly move to approach and move away from each other through the rack 46, so that the petroleum coke particles are floated up and down in the process of being suspended and fluidized.

[0061] The above merely describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous particle size monitoring device for petroleum coke, characterized in that, include: A monitoring box (1) is fixedly connected to a partition (11). The monitoring box (1) is divided into a transmission chamber (12) and a monitoring chamber (13) by the partition (11). A conveying pipe (14) is fixedly connected to the inner top wall of the monitoring chamber (13). The conveying pipe (14) connects to the outside and the monitoring chamber (13). A monitoring device (15) is fixedly connected to the inner top wall of the monitoring box (1). A fluidized bed drying unit (2) is used to transport petroleum coke in a suspended fluidized state. The fluidized bed drying unit (2) includes an air guide box (21) fixedly connected to the bottom wall of the monitoring room (13). The upper end of the air guide box (21) is provided with multiple exhaust slots (22) arranged in a linear array. An air compressor (23) is fixedly connected to the bottom end of the monitoring box (1). The output end of the air compressor (23) is connected to the inside of the air guide box (21). Multiple heating rods arranged in a linear array are rotatably connected inside the air guide box (21). (24) A second motor (25) is fixedly connected to one side of the outer wall of the air guide box (21). The output end of the second motor (25) is fixedly connected to one of the heating rods (24), and a heat insulation layer is provided at the connection position between the output end of the second motor (25) and the heating rod (24). A heat insulation guide rod (26) is fixedly connected to the end of each of the heating rods (24) away from the second motor (25). The heat insulation guide rods (26) are connected to each other by chain drive. The heating rods (24) are connected to an external power supply in parallel. The material distribution mechanism (3) is used to disperse the petroleum coke during the transportation process. The material leveling mechanism (3) includes a rotating sleeve (31) that is rotatably connected to the upper wall of the monitoring box (1). An L-shaped plate (32) is fixedly connected to the top of the monitoring box (1). A fixed rod (33) is fixedly connected to the lower end of the L-shaped plate (32). The fixed rod (33) extends into the rotating sleeve (31) and is fixedly connected to a first bevel gear (34). Two symmetrically distributed rotating rods (35) are rotatably connected to the peripheral side wall of the rotating sleeve (31). A second bevel gear (36) is fixedly connected to the part of the rotating rod (35) located inside the rotating sleeve (31). The second bevel gear (36) meshes with the first bevel gear (34). A stirring blade (37) is fixedly connected to the part of the rotating rod (35) located outside the rotating sleeve (31). A drive assembly (38) is provided at the upper end of the monitoring box (1) for driving the rotating sleeve (31) to rotate relative to the fixed rod (33). The drive assembly (38) includes a first motor (381) fixedly connected to the upper end of the monitoring box (1), a gear (382) fixedly connected to the output end of the first motor (381), and a first gear ring (383) fixedly connected to the peripheral side wall of the rotating sleeve (31) located above the monitoring box (1), and the gear (382) and the first gear ring (383) mesh with each other; A floating mechanism (4) is provided above the air guide box (21) inside the monitoring box (1) to drive the petroleum coke to float up and down during the suspension fluidization process. The floating mechanism (4) includes a baffle plate (41) that is slidably connected to the inner wall of the exhaust trough (22) along the length of the exhaust trough (22). Each baffle plate (41) has multiple exhaust holes (42) arranged in a linear array. The multiple baffle plates (41) are staggered. The upper end of the air guide box (21) is rotatably connected to multiple threaded sleeves (43). The number of threaded sleeves (43) is half the number of baffle plates (41). Threaded sleeves (43) are evenly distributed between two intersecting baffles (41). Threaded sleeves (43) are internally threaded with threaded rods (44). A second toothed ring (45) is fixedly connected to the peripheral sidewall of each threaded sleeve (43). A rack (46) is fixedly connected to the baffles (41) located on both sides of the threaded sleeves (43). The two racks (46) mesh with the two sides of the second toothed ring (45). A lifting rod (47) is linearly slidably connected to the monitoring box (1) above the air guide box (21). The threaded rod (44) is fixedly connected to the lower end of the lifting rod (47). A limiting groove (5) is provided on the partition (11). One end of the lifting rod (47) passes through the limiting groove (5) through the partition (11) and extends into the transmission chamber (12). A sealing block (51) is slidably connected to the partition (11) above and below the limiting groove (5). The sealing block (51) is elastically connected to the interior of the partition (11) by a first spring. The monitoring box (1) is equipped with a transmission assembly (39) located above the air guide box (21) and inside the transmission chamber (12). This assembly (39) drives the floating mechanism (4) while the driving assembly (38) drives the material leveling mechanism (3). The transmission assembly (39) includes a connecting rod (391) fixedly connected to the upper end of the lifting rod (47). The connecting rod (391) extends through the monitoring box (1) and is fixedly connected to a transmission plate (392). A second spring (393) is provided between the transmission plate (392) and the upper end of the monitoring box (1). A transmission rod (394) is rotatably connected to the L-shaped plate (32) through a mounting block. A bevel gear set (395) is provided between the transmission rod (394) and the output end of the first motor (381). A cam (396) is fixedly connected to the end of the transmission rod (394) away from the bevel gear set (395). The cam (396) periodically abuts against and pushes the transmission plate (392) downward.

2. The continuous particle size monitoring device for petroleum coke according to claim 1, characterized in that, The coefficient of friction between the threaded rod (44) and the threaded sleeve (43) is less than the tangent of the thread helix angle.

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