A ring-shaped drag chain extraction device

Abstract

The present invention provides an annular drag chain extraction device, which includes a box body. An upper grid plate, a lower grid plate and an annular drag chain are arranged in the box body. Scrapers that slide vertically 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. The plurality of dividing knives are arranged at intervals perpendicular to the feeding direction. A blanking guide plate and a corrugated plate are provided at the upper and lower blanking channels. The blanking guide plate is located above the scraper and is used to push the scraper to move vertically downward. The corrugated plate is located below the corresponding slider. After the scraper moves downward, it moves along the corrugated plate. The corrugated plate is used for the vertical vibration of the scraper. The extraction device of the present invention facilitates rapid blanking at the upper and lower blanking channels and the discharge channel, avoids blockage between two scrapers or sticking of materials on the scraper, and at the same time avoids increasing the probability of wear and fracture of the drag chain.

Description

Technical Field

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

[0002] The annular drag chain extraction device is a continuous oil extraction equipment. The extraction liquid penetrates the solid material layer to extract oil and form a mixed oil. For large annular drag chain extraction devices with a production capacity of more than 600 t / d, due to the heavy equipment, during the production cycle, faults that cause the production line to interrupt should be avoided as much as possible. Because once a fault occurs, it is necessary to stop the machine first, interrupt production, and then introduce steam for dissolution. When there is no solvent inside the equipment, workers clean and repair the inside of the machine through manholes or inspection holes, resulting in huge losses.

[0003] During the use of the annular drag chain extraction device, the following problems are likely to occur: When using a low scraper, bridging is likely to occur at the material dropping places of the upper grid plate or the lower grid plate. For example, in Chinese patent document CN105886118B, even if a material distributing device is provided on the drive shaft, in order to avoid collision with the scraper, the working range of the material distributing device is limited, and the treatment effect on the bridging material is limited. Seriously, it may cause equipment damage and faults. To solve the bridging problem, Chinese patent documents CN216764820U, CN216760898U, etc. adopt high scrapers, which are convenient for separating materials and are not likely to form bridging at the material dropping places. However, when the material layer thickness is relatively high, such as more than 0.85 meters, due to the heavy material layer and oil immersion extraction, etc., the material layer will become dense, and it is still easy to have problems such as material blockage between adjacent two scrapers or material sticking on the scraper during material dropping, and the material dropping is not clean. Moreover, large pieces of materials are likely to fall at the material dropping place of the upper grid plate, affecting the extraction of the subsequent lower grid plate. Summary of the Invention

[0004] The present invention provides an annular drag chain extraction device, which is convenient for rapid material dropping in the upper and lower material dropping channels and the discharge channel, avoids material blockage between two scrapers or material sticking on the scraper, and at the same time avoids increasing the probability of drag chain wear and breakage.

[0005] The technical solution of the present invention is realized as follows: An annular drag chain extraction device includes a box body. An upper grid plate, a lower grid plate and an annular drag chain are arranged inside the box body. An upper driving sprocket is arranged at the left end of the upper grid plate, and an upper material dropping 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 discharge channel is arranged between the lower grid plate and the lower driving sprocket;

[0006] Vertical scraping plates are evenly distributed on the annular drag chain. A first slider is provided at the bottom end of the scraping plate. An upper slideway is provided on the upper grid plate. The annular drag chain drives the first slider to move along the upper slideway. A second slider is provided at the top end of the scraping plate. A lower slideway is provided on the lower grid plate. The annular drag chain drives the second slider to move along the lower slideway. Multiple dividing knives are provided at the left end of the upper grid plate and the right end of the lower grid plate. The multiple dividing knives are arranged at intervals perpendicular to the feeding direction. A blanking guide plate and a corrugated plate are provided at both the upper blanking channel and the discharging channel. The blanking guide plate is located above the scraping plate and is used to push the scraping plate to move vertically downward. The corrugated plate is located below the corresponding slider. After the scraping plate moves downward, it moves along the corrugated plate. The corrugated plate is used for the vertical vibration of the scraping plate.

[0007] Further, a material crushing mechanism is provided below the upper blanking channel. The material crushing mechanism includes a left baffle plate and a right baffle plate. A falling blanking channel is formed between the left baffle plate and the right baffle plate. A cutting mesh plate is provided at the feeding port of the falling blanking channel. The cutting mesh plate is composed of cutting wires. There is a vertical distance of more than 2 meters between the cutting mesh plate and the bottom of the scraping plate.

[0008] Further, a support rod is provided above the left baffle plate. 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 at the top end of the left baffle plate. The left end of the connecting rod abuts against the roller of the annular drag chain. As the annular drag chain moves, the roller pushes the left end of the connecting rod to move downward, thereby driving the right end of the connecting rod to move upward. After the left end of the connecting rod disengages from the roller, the right end of the connecting rod moves downward to reset and knock and vibrate the left baffle plate.

[0009] Further, the scraping plate includes a plate body. Vertical strengthening rods are fixedly arranged at intervals on one side of the plate body. The vertical strengthening rods are connected by horizontal strengthening 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 inside the U-shaped connecting plate. The horizontal strengthening rod passes through the first vertical sliding hole. A bottom strengthening plate is fixed on the other side of the plate body. A second vertical sliding hole is provided on the bottom strengthening plate. The second vertical sliding hole is connected to the adjacent drag chain pin shaft.

[0010] Further, guide plates are also provided at both the upper blanking channel and the discharging channel. The guide plates are located on the feeding side of the corrugated plate. The guide plates are parallel to the blanking guide plates.

[0011] Further, the right end of the upper grid plate is a return end that slopes downward, and the left end of the lower grid plate is an arc end that opens upward.

[0012] Further, a spray pipe is provided above the upper blanking channel.

[0013] Advantages of the present invention:

[0014] Through the cooperation of the vertically sliding scraper and the blanking guide plate, a staggered layer is formed between the scraper and the material entering the upper and lower blanking channels or the discharge channel, as well as between the materials, destroying the bonding surface between the scraper and the material and the massive structure formed by the materials. At the same time, the dividing knife is cooperated to advance the separation of the bottom of the material to be blanked. The corrugated plate vibrates the scraper vertically entering the upper blanking channel, facilitating rapid blanking and avoiding material blockage between the two scrapers or sticking of materials on the scraper. At the same time, the cooperation of the above structures reduces the influence of the downward movement and vertical vibration of the scraper on the drag chain as much as possible, avoiding increasing the probability of drag chain wear and fracture.

[0015] The shredding mechanism of the present invention includes a left baffle, a right baffle and a cutting mesh plate. There is a vertical distance of more than 2 meters between the cutting mesh plate and the bottom of the scraper. Through the self-weight of the massive material and the impact of falling, the larger massive material falling is cut and separated, facilitating subsequent extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the annular drag chain extraction device of the present invention;

[0018] Figure 2 For Figure 1 the structural schematic diagram of area I in

[0019] Figure 3 For Figure 1 the structural schematic diagram of area II in

[0020] Figure 4 For Figure 1 the structural schematic diagram of area III in

[0021] Figure 5 For Figure 2 the partial enlarged view of A in

[0022] Figure 6 For Figure 4 the partial enlarged view of B in

[0023] Figure 7 For Figure 3 the partial enlarged view of C in

[0024] Figure 8 For Figure 3 the partial enlarged view of D in

[0025] Figure 9 is Figure 2 a partial enlarged view of E in;

[0026] Figure 10 is Figure 2 a sectional view taken along F-F in;

[0027] Figure 11 is Figure 4 a sectional view taken along G-G in;

[0028] Figure 12 is Figure 10 a sectional view taken along H-H in;

[0029] Figure 13 is a structural schematic diagram of a U-shaped connecting plate.

[0030] Box body 1, upper grid plate 2, lower grid plate 3, annular drag chain 4, upper driving sprocket 5, upper tensioning sprocket 6, lower driving sprocket 7, lower tensioning sprocket 8, scraper 9, first slider 10, upper slideway 11, second slider 12, lower slideway 13, plate body 14, vertical reinforcing bar 15, horizontal reinforcing bar 16, U-shaped connecting plate 17, first vertical sliding hole 18, bottom reinforcing plate 19, second vertical sliding hole 20, drag chain pin shaft 21, dividing knife 22, upper blanking channel 23, discharge channel 24, blanking guide plate 25, corrugated plate 26, guide plate 27, left baffle 28, right baffle 29, lower blanking channel 30, cutting mesh plate 31, support rod 32, connecting rod 33, return end 34, arc end 35. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] The terms "upper", "lower", "left", "right" and the like in the present invention are relative to Figure 1 the positional relationship shown, area I is the left end, and area III is the right end.

[0033] As Figure 1-4 shown, a kind of annular drag chain extraction device includes a box body 1, an upper grid plate 2, a lower grid plate 3 and an annular drag chain 4 are arranged in the box body 1, 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 annular drag chain 4 is sleeved outside the upper driving sprocket 5, the upper tensioning sprocket 6, the lower driving sprocket 7 and the lower tensioning sprocket 8, and is in a trapezoidal transmission.

[0034] As Figure 2 、 3 、7, and 8 show, vertical sliding scrapers 9 are evenly distributed on the annular drag chain 4. A first slider 10 is fixed to the bottom end of the scraper 9, and an upper slideway 11 is fixed to the upper grid plate 2. The annular drag chain 4 drives the first slider 10 to move along the upper slideway 11. A second slider 12 is fixed to the top end of the scraper 9, and a lower slideway 13 is fixed to the lower grid plate 3. 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 relatively heavy themselves, and it is very difficult to be completely straightened during operation. The annular drag chain 4 and the scraper 9 in the middle part will inevitably sag to a certain extent. Therefore, a certain gap needs to be reserved between the scraper 9 and the upper grid plate 2 or the lower grid plate 3 to prevent the scraper 9 from damaging the grid plate during movement. 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 to ensure that its height is determined when moving on the corresponding grid plate and 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.

[0035] As Figure 10-13 shows, the scraper 9 includes a plate body 14. Vertical strengthening bars 15 are fixedly spaced on one side of the plate body 14. The vertical strengthening bars 15 are connected by horizontal strengthening bars 16 to increase the strength of the plate body 14. A U-shaped connecting plate 17 is connected to the outer link plate of the drag chain. A first vertical sliding hole 18 is provided on the U-shaped connecting plate 17. The first vertical sliding holes 18 correspond to the horizontal strengthening bars 16 one by one. The plate body 14 is placed inside the U-shaped connecting plate 17, and the horizontal strengthening bars 16 pass through the first vertical sliding holes 18. A bottom strengthening plate 19 is fixed to the other side of the plate body 14. A second vertical sliding hole 20 is provided on the bottom strengthening plate 19. The second vertical sliding holes 20 are connected to the adjacent drag chain pin shafts 21. Through the setting of the above structure, the drag chain drives the scraper 9 to move, and at the same time, the scraper 9 can also slide vertically.

[0036] As Figure 5 、 6As 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] like Figure 2 As 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.

[0042] 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.

[0043] 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 2As shown, the left end of the lower grid plate 3 is an arc end 35 with an upward opening, which facilitates the scraper 9 to enter the lower grid plate 3. A spray pipe is provided above the upper and lower material dropping channels 23. The spray pipe is located above the scraper 9, and mixed oil is sprayed on the falling material through the spray pipe.

[0044] A plurality of spray components are provided above both the upper grid plate 2 and the lower grid plate 3, and a plurality of oil hoppers are provided below both. The mixed oil in the oil hoppers is sent to the corresponding spray components through a circulation pump, and the spray components spray the mixed oil on the material for extraction. This part of the structure belongs to the prior art.

[0045] The usage method of the annular drag chain extraction device includes the following steps:

[0046] (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 for extraction. When passing through the dividing knife 22, the bottom of the material is divided into multiple segments;

[0047] (2) The scraper 9 moves out of the left end of the upper grid plate 2. The material guiding plate 25 at the lower material dropping channel 30 pushes the scraper 9 down to the corrugated plate 26, causing a dislocation between the scraper 9 and the material. Subsequently, the material guiding plate 25 pushes the material entering the upper material dropping channel 23 to move down, causing a dislocation between the removed material and the connected material. While the scraper 9 moves, it vibrates up and down along the corrugated plate 26, thereby enabling the material entering the upper material dropping channel 23 to quickly drop.

[0048] (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 dropping channel 30. The annular drag chain 4 drives the material to move along the lower grid plate 3 for extraction through the scraper 9;

[0049] (4) The scraper 9 moves out of the right end of the lower grid plate 3. The material guiding plate 25 at the discharge channel 24 pushes the scraper 9 down to the corrugated plate 26, causing a dislocation between the scraper 9 and the material. Subsequently, the material guiding plate 25 pushes the material entering the discharge channel to move down, causing a dislocation between the removed material and the connected material. While the scraper 9 moves, it vibrates up and down along the corrugated plate 26, thereby enabling the material entering the discharge channel to quickly discharge.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ring-shaped drag chain extraction device, comprising a box body, in which an upper grid plate, a lower grid plate and a ring-shaped drag chain are arranged. An upper driving sprocket is arranged at the left end of the upper grid plate, and an upper material dropping 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 discharge channel is arranged between the lower grid plate and the lower driving sprocket. It is characterized in that: Vertically sliding scraping plates are evenly distributed on the ring-shaped drag chain. A first slider is arranged at the bottom end of the scraping plate. An upper slideway is arranged on the upper grid plate. The ring-shaped drag chain drives the first slider to move along the upper slideway. A second slider is arranged at the top end of the scraping plate. A lower slideway is arranged on the lower grid plate. The ring-shaped drag chain drives the second slider to move along the lower slideway. 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 feeding guide plate and a corrugated plate are arranged at the upper material dropping channel and the discharge channel. The feeding guide plate is located above the scraping plate and is used to push the scraping plate to move vertically downward. The corrugated plate is located below the corresponding slider. After the scraping plate moves downward, it moves along the corrugated plate. The corrugated plate is used for the vertical vibration of the scraping plate; Through the cooperation of the vertically sliding scraping plate and the feeding guide plate, a staggered layer is formed between the scraping plate and the material and between the materials entering the upper material dropping channel or the discharge channel, destroying the bonding surface between the scraping plate and the material and the block structure formed by the materials. At the same time, the dividing knife is used to pre-separate the bottom of the material to be dropped. The corrugated plate makes the scraping plate entering the upper material dropping channel vibrate vertically, facilitating rapid material dropping; A material crushing mechanism is arranged below the upper material dropping channel. The material crushing mechanism includes a left baffle plate and a right baffle plate. A lower material dropping channel is formed between the left baffle plate and the right baffle plate. A cutting mesh plate is arranged at the feeding port of the lower material dropping channel. The cutting mesh plate is composed of cutting wires. There is a vertical distance of more than 2 meters between the cutting mesh plate and the bottom of the scraping plate; A support rod is arranged above the left baffle plate. A connecting rod is rotatably connected to the support rod. The weight of the right end of the connecting rod is greater than that of the left end. The right end of the connecting rod is placed at the top end of the left baffle plate. The left end of the connecting rod abuts against the roller of the ring-shaped drag chain. As the ring-shaped drag chain moves, the roller pushes the left end of the connecting rod to move downward, thereby driving the right end of the connecting rod to move upward. After the left end of the connecting rod disengages from the roller, the right end of the connecting rod moves downward to reset and knock and vibrate the left baffle plate.

2. The annular drag chain extraction device according to claim 1, characterized in that: The scraping plate includes a plate body. Vertically reinforcing rods are fixedly arranged at intervals on one side of the plate body. The vertically reinforcing rods are connected by horizontal reinforcing rods. A U-shaped connecting plate is arranged on the outer link plate of the drag chain. A first vertical sliding hole is arranged on the U-shaped connecting plate. The plate body is placed inside the U-shaped connecting plate. The horizontal reinforcing rod passes through the first vertical sliding hole. A bottom reinforcing plate is fixed on the other side of the plate body. A second vertical sliding hole is arranged on the bottom reinforcing plate. The second vertical sliding hole is connected to the adjacent drag chain pin shaft.

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

4. The annular drag chain extraction device according to claim 1, wherein: 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 end with an upward opening.

5. The annular drag chain extraction device according to claim 1, wherein: A spray pipe is arranged above the upper material dropping channel.

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