Annular drag chain extraction device

Abstract

The invention provides an annular drag chain extraction device which comprises a box body, an upper grid plate, a lower grid plate and an annular drag chain are arranged in the box body, vertically sliding scrapers are evenly distributed on the annular drag chain, a plurality of dividing knives are arranged at the left end of the upper grid plate and the right end of the lower grid plate, and the dividing knives are arranged at intervals in the direction perpendicular to the feeding direction. The upper blanking channel and the discharging channel are each provided with a discharging guide plate and a corrugated plate, the discharging guide plates are located above the scraping plates and used for pushing the scraping plates to vertically move downwards, the corrugated plates are located below the corresponding sliding blocks, the scraping plates move along the corrugated plates after moving downwards, and the corrugated plates are used for vertical vibration of the scraping plates. The extraction device disclosed by the invention is arranged on the upper blanking channel and the discharge channel, so that rapid blanking is facilitated, material blockage between the two scraping plates or material adhesion on the scraping plates is avoided, and meanwhile, the probability of abrasion and breakage of the drag chain is prevented from being increased.

Description

Technical Field

[0001] The invention relates to the technical field of extraction equipment, in particular to an annular drag chain extraction device. Background Art

[0002] The ring drag chain extraction device is a continuous oil extraction device that extracts oil and forms mixed oil by penetrating the solid material layer with the extraction liquid. For large-scale ring drag chain extraction devices with a production capacity of more than 600t / d, due to the heavy weight of the equipment, during the production cycle, failures that cause production line interruptions should be avoided as much as possible. Once a failure occurs, the machine needs to be shut down first, production interrupted, and then steam is introduced for dissolution. When there is no solvent inside the equipment, workers manually clean and repair the inside of the machine through the manhole or inspection hole, causing huge losses.

[0003] During the use of the annular drag chain extraction device, the following problems are prone to occur: the use of low scrapers easily forms bridges at the drop of the upper or lower grid plates. For example, in the Chinese patent document CN105886118B, even if a material-dispensing device is set on the drive shaft, in order to avoid collision with the scraper, the working range of the material-dispensing device is limited, and the processing effect of the bridged material is limited. In severe cases, it may cause equipment damage and malfunction. In order to solve the problem of bridging, Chinese patent documents CN216764820U, CN216760898U, etc. use high scrapers to separate the materials, and it is not easy to form bridges at the drop. However, the material layer thickness is high, such as above 0.85 meters. Due to the heavy material layer and oil immersion extraction, the material layer will become dense. When dropping the material, it is still easy to cause blocking between the adjacent scrapers or sticking on the scraper, and the drop is not clean. In addition, large pieces of material are also prone to fall at the drop of the upper grid plate, affecting the subsequent extraction of the lower grid plate. Summary of the invention

[0004] The present invention provides an annular drag chain extraction device, which facilitates rapid material dropping in the upper material dropping channel and the material discharging channel, avoids material blockage between two scrapers or material sticking on the scrapers, and avoids increasing the probability of drag chain wear and breakage.

[0005] The technical solution of the present invention is implemented as follows: an annular drag chain extraction device comprises a box body, an upper grid plate, a lower grid plate and an annular drag chain are arranged in the box body, an upper driving sprocket is arranged at the left end of the upper grid plate, an upper material drop channel is arranged between the upper grid plate and the upper driving sprocket, a lower driving sprocket is arranged at the right end of the lower grid plate, and a material discharge channel is arranged between the lower grid plate and the lower driving sprocket; Vertically sliding scrapers are evenly distributed on the annular drag chain, a first slider is arranged at the bottom end of the scraper, an upper slide is arranged on the upper grid plate, the annular drag chain drives the first slider to move along the upper slide, a second slider is arranged at the top of the scraper, a lower slide is arranged on the lower grid plate, the annular drag chain drives the second slider to move along the lower slide, a plurality of dividing knives are arranged at the left end of the upper grid plate and the right end of the lower grid plate, the plurality of dividing knives are arranged at intervals perpendicular to the feeding direction, a material discharge guide plate and a corrugated plate are arranged at the upper drop channel and the discharge channel, the material discharge guide plate is located above the scraper for pushing the scraper to move vertically downward, the corrugated plate is located below the corresponding slider, the scraper moves along the corrugated plate after moving downward, and the corrugated plate is used for vertical vibration of the scraper.

[0006] Furthermore, a crushing mechanism is provided below the upper material drop channel, and the crushing mechanism includes a left material baffle plate and a right material baffle plate. A lower material drop channel is formed between the left material baffle plate and the right material baffle plate. A cutting mesh plate is provided at the feed inlet of the lower material drop channel. The cutting mesh plate is composed of cutting lines, and there is a vertical distance of more than 2 meters between the cutting mesh plate and the bottom of the scraper.

[0007] Furthermore, a support rod is provided above the left material baffle plate, and a connecting rod is rotatably connected to the support rod. The right end of the connecting rod is heavier than the left end. The right end of the connecting rod is placed on the top of the left material baffle plate, and the left end of the connecting rod is against the roller of the annular drag chain. As the annular drag chain moves, the roller pushes the left end of the connecting rod downward, thereby driving the right end of the connecting rod to move upward. After the left end of the connecting rod is separated from the roller, the right end of the connecting rod moves downward and resets, knocking and vibrating the left material baffle plate.

[0008] Furthermore, the scraper includes a plate body, vertical reinforcement rods are fixed at intervals on one side of the plate body, the vertical reinforcement rods are connected through horizontal reinforcement rods, a U-shaped connecting plate is provided on the outer link plate of the drag chain, a first vertical sliding hole is provided on the U-shaped connecting plate, the plate body is placed in the U-shaped connecting plate, the horizontal reinforcement rod passes through the first vertical sliding hole, a bottom reinforcement plate is fixed on the other side of the plate body, a second vertical sliding hole is provided on the bottom reinforcement plate, and the second vertical sliding hole is connected to the adjacent drag chain pin shaft.

[0009] Furthermore, guide plates are provided at both the upper material drop channel and the material discharge channel. The guide plates are located at the feed side of the corrugated plate, and the guide plates are parallel to the material drop guide plates.

[0010] Furthermore, the right end of the upper grid plate is a return end inclined downward, and the left end of the lower grid plate is an arc-shaped end opened upward.

[0011] Furthermore, a spray pipe is provided above the upper material dropping channel.

[0012] Beneficial effects of the present invention: The present invention cooperates with the vertically sliding scraper and the material discharge guide plate to form a staggered layer between the scraper and the material and between the materials entering the upper material discharge channel or the material discharge channel, thereby destroying the bonding surface between the scraper and the material and the block structure formed by the materials. At the same time, the dividing knife is used to separate the bottom of the material to be discharged in advance, and the corrugated plate causes the scraper entering the upper material discharge channel to vibrate vertically, which is convenient for rapid material discharge and avoids material blockage between the two scrapers or material sticking on the scraper. At the same time, the cooperation of the above-mentioned structure reduces the influence of the downward movement of the scraper and the vertical vibration on the drag chain as much as possible, thereby avoiding increasing the probability of wear and breakage of the drag chain.

[0013] The crushing mechanism of the present invention comprises a left baffle plate, a right baffle plate and a cutting mesh plate. The cutting mesh plate and the bottom of the scraper plate have a vertical spacing of more than 2 meters. The falling larger block materials are cut and separated by the deadweight of the block materials and the impact of falling, which is convenient for subsequent extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the annular drag chain extraction device of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the middle I zone; Figure 3 for Figure 1 Schematic diagram of the structure of the middle II zone; Figure 4 for Figure 1 Schematic diagram of the structure of the middle III zone; Figure 5 for Figure 2 A partial enlarged view of middle A; Figure 6 for Figure 4 A partial enlarged view of B in the middle; Figure 7 for Figure 3 A partial enlarged view of middle C; Figure 8 for Figure 3 A partial enlarged view of middle D; Fig. 9 for Figure 2 A partial enlarged view of middle E; Fig.10 for Figure 2 Cross-sectional view of the middle FF; Fig.11 for Figure 4 Cross-sectional view of middle GG; Fig.12 for Fig.10 Cross-sectional view of middle HH; Fig.13 It is a structural schematic diagram of the U-shaped connecting plate.

[0016] Box body 1, upper grid plate 2, lower grid plate 3, annular drag chain 4, upper drive sprocket 5, upper tensioning sprocket 6, lower drive sprocket 7, lower tensioning sprocket 8, scraper 9, first slider 10, upper slide 11, second slider 12, lower slide 13, plate body 14, vertical reinforcement rod 15, horizontal reinforcement rod 16, U-shaped connecting plate 17, first vertical sliding hole 18, bottom reinforcement plate 19, second vertical sliding hole 20, drag chain pin 21, dividing knife 22, upper blanking channel 23, discharge channel 24, blanking guide plate 25, corrugated plate 26, guide plate 27, left baffle plate 28, right baffle plate 29, lower blanking channel 30, cutting mesh plate 31, support rod 32, connecting rod 33, return end 34, arc end 35. DETAILED DESCRIPTION

[0017] 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.

[0018] The terms "upper, lower, left, right, etc." of the present invention are relative to Figure 1 In the positional relationship shown, zone I is the left end and zone III is the right end.

[0019] like Figure 1-4 As shown, a ring-shaped drag chain extraction device comprises a housing 1, in which an upper grid plate 2, a lower grid plate 3 and a ring-shaped drag chain 4 are arranged, an upper driving sprocket 5 is arranged at the left end of the upper grid plate 2, an upper tensioning sprocket 6 is arranged at the right end of the upper grid plate 2, a lower driving sprocket 7 is arranged at the right end of the lower grid plate 3, a lower tensioning sprocket 8 is arranged at the left end of the lower grid plate 3, and the ring-shaped drag chain 4 is sleeved on the outer sides of the upper driving sprocket 5, the upper tensioning sprocket 6, the lower driving sprocket 7 and the lower tensioning sprocket 8, forming a trapezoidal transmission.

[0020] like Figure 2 , 3As shown in , 7 and 8, the scrapers 9 for vertical sliding are evenly distributed on the annular drag chain 4, the first slider 10 is fixed at the bottom of the scraper 9, the upper slideway 11 is fixed on the upper grid plate 2, the annular drag chain 4 drives the first slider 10 to move along the upper slideway 11, the second slider 12 is fixed at the top of the scraper 9, the lower grid plate 3 is fixed with a lower slideway 13, and the annular drag chain 4 drives the second slider 12 to move along the lower slideway 13. The annular drag chain 4 and the scraper 9 are heavy, and it is difficult to be completely straightened during operation. The annular drag chain 4 and the scraper 9 in the middle part will inevitably fall to a certain extent, so a certain gap needs to be reserved between the scraper 9 and the upper grid plate 2 or the lower grid plate 3 to avoid damaging the grid plate during the movement of the scraper 9. Through the cooperation of the first slider 10 and the upper slideway 11 and the second slider 12 and the lower slideway 13, on the one hand, it is used to support the scraper 9 so that its height is determined when it moves on the corresponding grid plate and it will not move down; on the other hand, it also ensures the gap between the scraper 9 and the corresponding grid plate to avoid damaging the grid plate.

[0021] like Figure 10-13 As shown, the scraper 9 includes a plate body 14, and a vertical reinforcing rod 15 is fixed at intervals on one side of the plate body 14. The vertical reinforcing rod 15 is connected by a horizontal reinforcing rod 16, and the strength of the plate body 14 is increased by the vertical reinforcing rod 15 and the horizontal reinforcing rod 16. A U-shaped connecting plate 17 is connected to the outer chain plate of the drag chain, and a first vertical sliding hole 18 is provided on the U-shaped connecting plate 17. The first vertical sliding hole 18 corresponds to the horizontal reinforcing rod 16 one by one. The plate body 14 is placed in the U-shaped connecting plate 17, and the horizontal reinforcing rod 16 passes through the first vertical sliding hole 18. A bottom reinforcing plate 19 is fixed on the other side of the plate body 14, and a second vertical sliding hole 20 is provided on the bottom reinforcing plate 19. The second vertical sliding hole 20 is connected to the adjacent drag chain pin 21. Through the above-mentioned structure, the drag chain drives the scraper 9 to move, and the scraper 9 can also slide vertically.

[0022] like Figure 5 , 6 As shown in , 10 and 11, a plurality of segmentation knives 22 are fixed at the left end of the upper grid plate 2 and the right end of the lower grid plate 3. The plurality of segmentation knives 22 are fixed at intervals perpendicular to the feeding direction. The segmentation knives 22 are located in the gap between the scraper plate 9 and the corresponding grid plate. A single segmentation knife 22 is parallel to the feeding direction and is staggered with the corresponding slider, such as the segmentation knife 22 of the upper grid plate 2 is staggered with the first slider 10, and the segmentation knife 22 of the lower grid plate 3 is staggered with the second slider 12. Before the material leaves the corresponding grid plate, the bottom of the material is divided into multiple sections by the segmentation knife 22, which is convenient for subsequent material dropping and discharging. If the segmentation knife 22 is not set, it is not conducive to the rapid separation and dropping of the material, because the bottom of the material has a large density due to transportation and oil immersion pressure, and is more likely to agglomerate. By setting the segmentation knife 22, the bottom of the material is divided into multiple sections before dropping, which is more conducive to the subsequent dislocation between the material and the material.

[0023] like Figure 2 ,4 -6, an upper material drop channel 23 is provided between the upper grid plate 2 and the upper drive sprocket 5, and a material discharge channel 24 is provided between the lower grid plate 3 and the lower drive sprocket 7; a material discharge guide plate 25 and a corrugated plate 26 are provided at the upper material drop channel 23 and the material discharge channel 24, and the material discharge guide plate 25 is fixed above the scraper 9, and is used to push the scraper 9 to move vertically downward. When the scraper 9 moves out of the left end of the upper grid plate 2 along the material discharge guide plate 25, the scraper 9 moves downward under the action of its own weight and the material discharge guide plate 25, and a dislocation is formed between the scraper 9 and the material. Subsequently, as the material is pushed, the material discharge guide plate 25 pushes the material entering the upper material drop channel 23 to move downward, so that the removed material is dislocated with the adjacent material, thereby destroying the adhesion between the scraper 9 and the material and between the material.

[0024] The corrugated plate 26 is located below the corresponding slider, and the corrugated plate 26 is fixedly connected to the box body 1. After the scraper 9 moves down, its corresponding slider moves along the corrugated plate 26. As the scraper 9 moves, the corrugated plate 26 is used for the vertical vibration of the scraper 9, further reducing the adhesion between the scraper 9 and the material, and reducing the residual adhesion on the scraper 9. If agglomerated materials do not fall between adjacent scrapers 9, they can also be made to fall as soon as possible through the vibration of the scraper 9. The above structure, in conjunction with the separation of the bottom of the material by the dividing knife 22, facilitates the rapid falling of the material and avoids blocking of the material between the two scrapers 9 or sticking of the material on the scraper 9.

[0025] If the scraper 9 is fixed to the outer chain plate of the annular drag chain 4, and a vibration device is directly installed at the material dropping channel or the material discharging channel 24 to vibrate the scraper 9 to promote material dropping, the following problems are likely to occur: because the scraper 9 is fixedly connected to the outer chain plate, when the scraper 9 is vibrated, the drag chain will also be vibrated, which increases the wear between the drag chain and the corresponding sprocket, thereby increasing the probability of the drag chain breaking and reducing the service life of the drag chain. In this embodiment, the scraper 9 and the outer chain plate are vertically slidable, and the corresponding slider moves along the corrugated plate 26 to push the scraper 9 up and down, which has little effect on the drag chain.

[0026] Guide plates 27 are also provided at the upper drop channel 23 and the discharge channel 24. The guide plates 27 are located on the feed side of the corrugated plate 26. The guide plates 27 are parallel to the discharge guide plates 25, that is, the slider corresponding to the scraper 9 moves downward through the guide plates 27 and then enters the corrugated plate 26. Through the cooperation of the guide plates 27 and the discharge guide plates 25, the vibration and impact of the drag chain caused by the sudden downward movement of the scraper 9 is avoided, thereby reducing the impact of the downward movement of the scraper 9 on the drag chain.

[0027] like Figure 2As shown, a crushing mechanism is provided below the upper drop channel 23, and the crushing mechanism includes a left baffle plate 28 and a right baffle plate 29, and a lower drop channel 30 is formed between the left baffle plate 28 and the right baffle plate 29. A cutting mesh plate 31 is provided at the feed inlet of the lower drop channel 30, and the cutting mesh plate 31 is composed of horizontal and vertical cutting lines, and there is a vertical distance of more than 2 meters between the cutting mesh plate 31 and the bottom of the scraper 9. Due to the dead weight of the larger block materials and the impact force of falling, the cutting mesh plate 31 cuts and separates the falling larger block materials, which is convenient for subsequent oil extraction.

[0028] like Figure 2 and 9 As shown, a support rod 32 is provided above the left material baffle plate 28, and the support rod 32 is fixedly connected to the box body 1. A connecting rod 33 is rotatably connected to the support rod 32, and the right end of the connecting rod 33 is heavier than the left end. The right end of the connecting rod 33 is placed at the top of the left material baffle plate 28, and the left end of the connecting rod 33 is against the roller of the annular drag chain 4. As the annular drag chain 4 moves, the roller pushes the left end of the connecting rod 33 downward, thereby driving the right end of the connecting rod 33 upward. After the left end of the connecting rod 33 is separated from the roller, the right end of the connecting rod 33 moves downward and resets, knocking and vibrating the left material baffle plate 28. As the annular drag chain 4 moves, the connecting rod 33 is driven to knock and vibrate the left material baffle plate 28, which is conducive to cutting the mesh plate 31 and smoothly unloading the material in the drop channel 30.

[0029] like Figure 4 As shown, the right end of the upper grid plate 2 is a return end 34 inclined downward, which facilitates the scraper 9 to return to the upper grid plate 2. Figure 2 As shown, the left end of the lower grid plate 3 is an arc-shaped end 35 with an opening facing upward, which facilitates the scraper 9 to enter the lower grid plate 3. A spray pipe is provided above the upper material drop channel 23, and the spray pipe is located above the scraper 9, through which the mixed oil is sprayed to the falling material.

[0030] There are multiple spray assemblies above the upper grid plate 2 and the lower grid plate 3, and multiple oil hoppers below. The mixed oil in the oil hopper is sent to the corresponding spray assembly through a circulating pump, and the spray assembly sprays the mixed oil on the material for extraction. This part of the structure belongs to the prior art.

[0031] The method for using the annular drag chain extraction device comprises the following steps: (1) The annular drag chain 4 drives the scraper 9 to move along the upper grid plate 2. At the same time, the scraper 9 pushes the material to move and extract. When passing through the dividing knife 22, the bottom of the material is divided into multiple sections; (2) The scraper 9 moves out of the left end of the upper grid plate 2, and the material discharge guide plate 25 at the lower material discharge channel 30 pushes the scraper 9 to move down to the corrugated plate 26, so that there is a misalignment between the scraper 9 and the material. Subsequently, the material discharge guide plate 25 pushes the material entering the upper material discharge channel 23 to move down, so that there is a misalignment between the removed material and the adjacent material. While the scraper 9 moves, it vibrates up and down along the corrugated plate 26, so that the material entering the upper material discharge channel 23 is discharged quickly; (3) The material falls onto the cutting mesh plate 31 for cutting and separation, and then enters the lower grid plate 3 through the lower material drop channel 30. The annular drag chain 4 drives the material to move along the lower grid plate 3 for extraction through the scraper 9; (4) The scraper 9 moves out of the right end of the lower grid plate 3, and the material discharge guide plate 25 at the discharge channel 24 pushes the scraper 9 to move down to the corrugated plate 26, so that there is a misalignment between the scraper 9 and the material. Subsequently, the material discharge guide plate 25 pushes the material entering the discharge channel to move down, so that there is a misalignment between the removed material and the adjacent material. While the scraper 9 moves, it vibrates up and down along the corrugated plate 26, thereby causing the material entering the discharge channel to be discharged quickly.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An annular drag chain extraction device, comprising a box body, an upper grid plate, a lower grid plate and an annular drag chain are arranged in the box body, an upper driving sprocket is arranged at the left end of the upper grid plate, an upper material drop channel is arranged between the upper grid plate and the upper driving sprocket, a lower driving sprocket is arranged at the right end of the lower grid plate, and a material discharge channel is arranged between the lower grid plate and the lower driving sprocket; characterized in that: Vertically sliding scrapers are evenly distributed on the annular drag chain, a first slider is arranged at the bottom end of the scraper, an upper slide is arranged on the upper grid plate, the annular drag chain drives the first slider to move along the upper slide, a second slider is arranged at the top of the scraper, a lower slide is arranged on the lower grid plate, the annular drag chain drives the second slider to move along the lower slide, a plurality of dividing knives are arranged at the left end of the upper grid plate and the right end of the lower grid plate, the plurality of dividing knives are arranged at intervals perpendicular to the feeding direction, a material discharge guide plate and a corrugated plate are arranged at the upper drop channel and the discharge channel, the material discharge guide plate is located above the scraper for pushing the scraper to move vertically downward, the corrugated plate is located below the corresponding slider, the scraper moves along the corrugated plate after moving downward, and the corrugated plate is used for vertical vibration of the scraper.

2. The annular drag chain extraction device according to claim 1, characterized in that: A crushing mechanism is provided below the upper material drop channel, and the crushing mechanism comprises a left material baffle plate and a right material baffle plate, and a lower material drop channel is formed between the left material baffle plate and the right material baffle plate, and a cutting mesh plate is provided at the feed inlet of the lower material drop channel, and the cutting mesh plate is composed of cutting lines, and there is a vertical distance of more than 2 meters between the cutting mesh plate and the bottom of the scraper.

3. The annular drag chain extraction device according to claim 2, characterized in that: A support rod is provided above the left material baffle plate, and a connecting rod is rotatably connected to the support rod. The right end of the connecting rod is heavier than the left end. The right end of the connecting rod is placed on the top of the left material baffle plate, and the left end of the connecting rod is against the roller of the annular drag chain. As the annular drag chain moves, the roller pushes the left end of the connecting rod downward, thereby driving the right end of the connecting rod to move upward. After the left end of the connecting rod is separated from the roller, the right end of the connecting rod moves downward and resets, knocking and vibrating the left material baffle plate.

4. The annular drag chain extraction device according to claim 1, characterized in that: The scraper includes a plate body, one side of the plate body is fixed with vertical reinforcing rods at intervals, the vertical reinforcing rods are connected through horizontal reinforcing rods, a U-shaped connecting plate is provided on the outer link plate of the drag chain, the U-shaped connecting plate is provided with a first vertical sliding hole, the plate body is placed in the U-shaped connecting plate, the horizontal reinforcing rod passes through the first vertical sliding hole, and a bottom reinforcing plate is fixed on the other side of the plate body, the bottom reinforcing plate is provided with a second vertical sliding hole, and the second vertical sliding hole is connected to the adjacent drag chain pin shaft.

5. The annular drag chain extraction device according to claim 1, characterized in that: Guide plates are also provided at both the upper material drop channel and the material discharge channel. The guide plates are located at the feeding side of the corrugated plate, and the guide plates are parallel to the material drop guide plates.

6. The annular drag chain extraction device according to claim 1, characterized in that: The right end of the upper grid plate is a return end inclined downward, and the left end of the lower grid plate is an arc-shaped end opened upward.

7. The annular drag chain extraction device according to claim 1 or 2, characterized in that: A spray pipe is arranged above the upper material dropping channel.

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