Hot ash residue water cooling device and asphalt extraction process

Abstract

The invention provides a hot ash residue water cooling device and an asphalt extraction technology.The hot ash residue water cooling device comprises a water pool and a V-shaped conveying mechanism installed in the water pool, the V-shaped conveying mechanism is provided with a receiving hopper, a cover plate conveying mechanism is installed at the top of the water pool, and a cover plate mechanism matched with the receiving hopper is installed on the cover plate conveying mechanism; after being heated and dried, hot ash residues can be sequentially collected through the receiving hoppers on the V-shaped conveying mechanism and then conveyed into the water pool to be cooled, and in the process of conveying the hot ash residues into the water pool, a cover plate on the cover plate conveying mechanism covers the receiving hoppers which are about to be conveyed into the water pool until the receiving hoppers are separated from the water surface and then are separated, so that the hot ash residues are separated from the water surface. And meanwhile, after the receiving hopper is submerged in water, the rake assembly can be driven to slide back and forth along the receiving hopper through cooperation of the first rotating gear and the first rack, so that the hot ash in the receiving hopper is turned over, and the water cooling effect of the hot ash is improved.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt extraction, in particular to a hot ash water cooling device and an asphalt extraction process. Background Art

[0002] At present, the asphaltene extraction process contained in coal ash is generally to obtain liquid asphalt by mixing the coal ash with washing oil and then centrifugally extracting and heating and evaporating. The ash after centrifugal extraction is then reused after heating and drying. In the existing method, the ash is directly conveyed to a collection area for collection through a conveyor belt after drying. However, since the heat entrained in the ash is not dissipated in time after heating and drying, a large amount of heat remains in the ash, which also causes the temperature of the collection area to be too high. In addition, the small particles of dust in the ash after drying are easily floated during the transportation process to cause environmental pollution. In addition, the existing extraction process cannot fully extract the asphalt. For this reason, the present invention develops a hot ash water cooling device and an asphalt extraction process to solve the above technical problems. Summary of the invention

[0003] The object of the present invention is to provide a hot ash water cooling device and an asphalt extraction process to solve the technical problems raised by the above background technology.

[0004] To achieve the above object, the first technical solution provided by the present invention is: A hot ash water cooling device comprises a water pool and a V-shaped conveying mechanism installed in the water pool, both ends of the V-shaped conveying mechanism are higher than the top of the water pool, and a horizontal section is arranged at the bottom of the V-shaped conveying mechanism, a plurality of receiving buckets for receiving hot ash are arranged at equal distances on the V-shaped conveying mechanism, and a plurality of first drainage holes are arranged on the side wall and the bottom of the receiving bucket, a cover plate conveying mechanism cooperating with the middle section of the V-shaped conveying mechanism is arranged in the middle of the top of the water pool, a cover plate mechanism cooperating with the receiving bucket is arranged on the cover plate conveying mechanism, and when the receiving bucket enters the water pool from the top of the water pool, the cover plate mechanism is covered on the receiving bucket, and when the receiving bucket rises from the water pool to the top of the water pool, the cover plate mechanism is separated from the receiving bucket; The cover plate mechanism includes a mounting strip, and the mounting strip is mounted on the cover plate conveying mechanism, a cover plate with a bottom recessed inwardly mounted on one side of the mounting strip, and the bottom opening of the cover plate is adapted to the opening of the receiving bucket, two first reciprocating screws are rotatably connected between opposite ends of the inner cavity of the cover plate, and driving members connected to the two first reciprocating screws are symmetrically fixedly connected at opposite ends of the cover plate, a first rotating gear is mounted on the driving shaft of the driving member, a slider is threadedly connected to the outer wall of the first reciprocating screw, a spike rake assembly inserted into the receiving bucket is hingedly mounted between the two sliders, first racks cooperating with the first rotating gear are fixedly connected to the inner walls on opposite sides of the pool, and the first racks are arranged corresponding to the horizontal section of the V-shaped conveying mechanism, and when the first reciprocating screw drives the slider to slide, the spike rake assembly and the two sliders are relatively flipped and vertically inserted into the receiving bucket.

[0005] Preferably, two sliders are respectively passed through the opposite ends of the rotating shaft of the spike rake assembly and second rotating gears are symmetrically installed, and the inner wall of the cover plate is symmetrically fixed with a second rack meshing with the second rotating gear, and the second rack is located below the second rotating gear.

[0006] Preferably, a side surface of the two sliding blocks away from each other is symmetrically installed with an internal hollow mounting seat, the second rotating gear is located inside the mounting seat, and the second rotating gear passes through the bottom of the mounting seat, the inner cavity of the mounting seat is slidably connected with an arc-shaped limit block that cooperates with the second rotating gear, and the cross-section of the arc-shaped limit block is larger than the cross-section of the second rotating gear and is located above the second rotating gear, the arc surface of the arc-shaped limit block is provided with a limit tooth that cooperates with the second rotating gear, and a sliding rod is fixedly connected to the middle of the bottom of the opposite sides of the arc-shaped limit block, the bottom of the sliding rod passes through the mounting seat and is provided with an abutment block, one end of the second rack and the abutment block are provided with inclined surfaces that cooperate with each other, a first spring is provided between the top of the arc-shaped limit block and the top of the inner cavity of the mounting seat, and the sliding rod is penetrated by a give way groove that cooperates with the rotating shaft of the spike rake assembly.

[0007] Preferably, the spike rake assembly includes a rotating rod, which is rotatably connected to two sliders, and a mounting sleeve is slidably connected to the outer wall of the rotating rod, a plurality of spike rakes are installed at the bottom of the mounting sleeve, and a hinged seat is installed at the top of the mounting sleeve, the hinged seat is hinged to a limiting piece, and the limiting piece is slidably connected to the bottom of the cover plate, and a sliding groove that cooperates with the limiting piece is opened on the top of the cover plate, and the sliding groove is wavy, and the opposite ends of the sliding groove are both straight grooves.

[0008] Preferably, the interior of the mounting sleeve is configured as a hollow structure, and a second reciprocating screw is rotatably connected between the opposite side walls of the inner cavity of the mounting sleeve, third rotating gears are installed at opposite ends of the second reciprocating screw through one-way bearings, a sliding sleeve is threadedly connected to the outer wall of the second reciprocating screw, and one end of the spike rake is fixedly connected to the bottom of the sliding sleeve and passes through the bottom of the mounting sleeve, a third rack meshing with the third rotating gear is slidably connected through a side surface of the mounting sleeve, and a limiting rod inserted into the inner cavity of the third rack is fixedly connected to the inner wall of one side of the mounting sleeve, a second spring is provided on the outer wall of the limiting rod, and a pressure block with a cross-section larger than that of the third rack is provided at one end of the third rack passing through the mounting sleeve.

[0009] Preferably, the limiting member comprises an articulated block hinged to the articulated seat, and a sliding block cooperating with the sliding groove is rotatably connected to the top of the articulated block.

[0010] Preferably, a limit strip is disposed on the outer wall of the rotating rod, and the limit strip is located between the two sliding blocks, and a limit groove cooperating with the limit strip is formed on the inner wall of the mounting sleeve.

[0011] To achieve the above object, the second technical solution provided by the present invention is: An asphalt extraction process comprises the following steps: S1. Adding coal ash residue containing 15% asphalt to washing oil, and the weight ratio of coal ash residue to washing oil is 1:2.5-5.5, mixing, melting and heating to 100-130° C. to form a mixed liquid with an ash content of 3%-5%; S2, centrifuging the mixed solution three times to obtain ash residue and a supernatant with an ash content of 0.04%; S3, heating the supernatant to 400° C. in a tubular heating furnace to obtain first wash oil vapor and liquid asphalt, and condensing the first wash oil vapor through a heat exchanger to obtain liquid wash oil for recycling; S4, injecting the ash residue in step S2 into the storage tank, pumping it into the paddle machine through the concrete pump, stirring it, heating it to 300°C and drying it, obtaining the second washing oil vapor and dry ash residue, and exchanging the second washing oil vapor to 30°C through the heat exchanger to obtain the room temperature liquid washing oil for recycling; S5. Cool the dry ash through water cooling device, pour it onto the conveyor belt and transport it to the silo for storage.

[0012] Preferably, the three centrifugation processes in step S2 are specifically as follows: The mixed liquid is centrifuged for the first time by a first centrifuge at a main engine frequency of 30-35 Hz and a secondary engine frequency of 33-37 Hz, to obtain a first ash residue and a first supernatant with an ash content of 1% respectively; The first supernatant is centrifuged for a second time by a second centrifuge at a main engine frequency of 40-45 Hz and an auxiliary engine frequency of 40-60 Hz, to obtain a second ash residue and a second supernatant with an ash content of 0.3% respectively; The second supernatant is centrifuged for the third time by a third centrifuge at a main engine frequency of 40-50 Hz and an auxiliary engine frequency of 40-50 Hz to obtain ash and a supernatant with an ash content of 0.04%, respectively.

[0013] Preferably, in step S4, the ash can also be transported from the storage tank to the paddle machine using a screw feeder.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, after the hot ash is heated and dried, it can be collected in sequence by the receiving bucket on the V-shaped conveying mechanism and then sent to the water pool for cooling. In the process of sending it to the water pool, the cover plate on the cover conveying mechanism is set on the receiving bucket to be sent to the water pool until the receiving bucket is separated from the water surface, thereby ensuring that the hot ash in the receiving bucket will not overflow from the receiving bucket during water cooling. At the same time, after the receiving bucket is immersed in water, the cooperation of the first rotating gear and the first rack can drive the spike rake assembly to slide back and forth along the receiving bucket, thereby turning the hot ash in the receiving bucket, thereby improving the water cooling effect of the hot ash.

[0015] 2. When extracting asphalt from coal ash in the present invention, by adding washing oil into the coal ash and stirring to form a mixed liquid, the asphalt in the coal ash can be fully extracted, and heating during the mixing process can improve the mixing efficiency between the coal ash and the washing oil, and then the liquid and the ash solid are gradually separated by three centrifugations, and then the separated liquid is heated for evaporation and condensed by heat exchange in turn to obtain a liquid asphalt product and liquid washing oil, respectively, and the liquid washing oil can be recycled for use, and the ash solid product is dried by a paddle machine and then collected after water treatment, and the water treatment of the ash solid product can not only have the effect of cooling the ash, but also can avoid the splashing of coal ash during the ash transportation process, which affects the factory environment, and after the ash is formed by centrifugal solid-liquid separation, the ash is uniformly collected in a storage tank and then pumped into a paddle machine for drying by a concrete floor pump, so that the ash can be uniformly processed, and the use of a concrete floor pump can greatly reduce the cost of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of the over-water cooling device of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the over-water cooling device of the present invention; Figure 3 It is a schematic structural diagram of the cover plate mechanism in the over-water cooling device of the present invention from a first angle; Figure 4 It is a second angle structural schematic diagram of the cover plate mechanism in the over-water cooling device of the present invention; Figure 5 It is a structural schematic diagram of a spike rake assembly in the over-water cooling device of the present invention; Figure 6 It is a schematic diagram of the front cross-section structure of the spike rake assembly in the water cooling device of the present invention; Figure 7 It is a schematic side cross-sectional structure diagram of a spike rake assembly in the over-water cooling device of the present invention; Figure 8 It is a partial cross-sectional structural schematic diagram of a spike rake assembly in the over-water cooling device of the present invention; Fig. 9 It is a schematic structural diagram of the second rack in the over-water cooling device of the present invention; Fig.10 It is a structural schematic diagram of the receiving bucket in the over-water cooling device of the present invention; Fig.11 It is a schematic diagram of the process of asphalt extraction of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Water pool; 2. V-shaped transmission mechanism; 3. Receiving bucket; 4. First drainage hole; 5. Cover plate transmission mechanism; 6. Cover plate mechanism; 61. Mounting bar; 62. Cover plate; 63. First reciprocating screw; 64. Driving member; 65. First rotating gear; 66. Sliding block; 67. Rake assembly; 671. Rotating rod; 672. Mounting sleeve; 6721. Second reciprocating screw; 6722. Third rotating gear; 6723. Sliding sleeve; 6724. Third Rack; 6725, limit rod; 6726, second spring; 6727, pressure block; 673, spike rake; 674, hinge seat; 675, limit piece; 6751, hinge block; 6752, sliding block; 676, slide groove; 677, limit strip; 68, second rotating gear; 69, second rack; 610, mounting seat; 611, arc limit block; 612, sliding rod; 613, abutment block; 614, first spring; 7, first rack. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-10 As shown: Embodiment 1 of the present invention is: A hot ash water cooling device comprises a water pool 1 and a V-shaped conveying mechanism 2 installed in the water pool 1, both ends of the V-shaped conveying mechanism 2 are higher than the water pool 1, and a horizontal section is arranged at the bottom of the V-shaped conveying mechanism 2, a plurality of receiving buckets 3 for receiving hot ash are arranged at equal distances on the V-shaped conveying mechanism 2, and a plurality of first drainage holes 4 are opened on the side wall and the bottom of the receiving bucket 3, a cover plate conveying mechanism 5 which cooperates with the middle section of the V-shaped conveying mechanism 2 is arranged in the middle of the top of the water pool 1, a cover plate mechanism 6 which cooperates with the receiving bucket 3 is arranged on the cover plate conveying mechanism 5, and when the receiving bucket 3 enters the water pool 1 from the top of the water pool 1, the cover plate mechanism 6 is arranged on the receiving bucket 3, and when the receiving bucket 3 rises from the water pool 1 to the top of the water pool 1, the cover plate mechanism 6 is separated from the receiving bucket 3; The cover mechanism 6 includes a mounting bar 61, and the mounting bar 61 is installed on the cover conveying mechanism 5. A cover 62 with a bottom recessed inward is installed on one side of the mounting bar 61, and the bottom opening of the cover 62 is adapted to the opening of the receiving bucket 3. Two first reciprocating screws 63 are rotatably connected between the opposite ends of the inner cavity of the cover 62, and driving members 64 connected to the two first reciprocating screws 63 are symmetrically fixedly connected at the opposite ends of the cover 62. The driving shaft of the driving member 64 is installed with a first rotating gear 65. A slider 66 is threadedly connected to the outer wall of the first reciprocating screw 63. A rake assembly 67 inserted into the receiving bucket 3 is hingedly installed between the two sliders 66. First racks 7 cooperating with the first rotating gear 65 are fixedly connected to the inner walls of the opposite sides of the pool 1, and the first rack 7 is arranged corresponding to the horizontal section of the V-shaped conveying mechanism 2. When the first reciprocating screw 63 drives the slider 66 to slide, the rake assembly 67 and the two sliders 66 are relatively flipped and vertically inserted into the receiving bucket 3.

[0021] In this embodiment, two sliders 66 are respectively passed through the opposite ends of the rotating shaft of the spike rake assembly 67 and second rotating gears 68 are symmetrically installed. Second racks 69 that mesh with the second rotating gears 68 are symmetrically fixed to the inner walls of the opposite sides of the cover plate 62, and the second racks 69 are located below the second rotating gears 68. When the first reciprocating screw drives the slider and the spike rake assembly to slide, the second rotating gear and the second rack can drive the spike rake assembly to flip over with the cooperation of the second rotating gear and the second rack, so that the spike rake assembly can be flipped from a horizontal state to a vertical state, and then the hot ash in the receiving bucket can be turned over, and after the turning over is complete, the spike rake assembly can be turned over and put into the cover plate, so that there will be no interference between the cover plate and the receiving bucket when they are covered or separated.

[0022] In the present embodiment, in order to ensure that the nail rake assembly will not flip over due to the effect of resistance during the process of turning over the hot ash by the nail rake assembly, a hollow mounting seat 610 is symmetrically installed on the side of the two sliding blocks 66 away from each other, the second rotating gear 68 is located inside the mounting seat 610, and the second rotating gear 68 passes through the bottom of the mounting seat 610, and the inner cavity of the mounting seat 610 is slidably connected with an arc-shaped limit block 611 that cooperates with the second rotating gear 68, and the cross-section of the arc-shaped limit block 611 is larger than the cross-section of the second rotating gear 68 and is located above the second rotating gear 68, the arc surface of the arc-shaped limit block 611 is provided with a limit tooth that cooperates with the second rotating gear 68, and sliding rods 612 are fixedly connected to the middle of the bottom of the opposite sides of the arc-shaped limit block 611, the bottom of the sliding rod 612 passes through the mounting seat 610 and is provided with abutment blocks 613, One end of the second rack 69 and the abutment block 613 are both provided with mutually matching inclined surfaces, and a first spring 614 is provided between the top of the arc limit block 611 and the top of the inner cavity of the mounting seat 610, wherein when the sliding block and the second rotating gear slide and disengage from the second rack, the arc limit block is lowered by the action of the first spring restoring force and the limiting tooth is clamped on the second rotating gear, so that the angle of the second rotating gear and the nail rake assembly is kept fixed, and when the second rotating gear and the nail rake assembly slide back, the abutment block at the bottom of the sliding rod gradually contacts the inclined surface at the front end of the second rack, so that the sliding rod gradually pushes the arc limit block to rise, so that the limiting tooth of the arc limit block is disengaged from the second rotating gear, so that the meshing of the second rotating gear and the second rack can drive the nail rake assembly to flip, thereby flipping the nail rake assembly to a horizontal position, ensuring that the cover plate and the receiving bucket can be separated normally.

[0023] In this embodiment, a sliding groove is formed through the sliding rod 612 to cooperate with the rotating shaft of the spike rake assembly 67, that is, the sliding rod is slidably sleeved on the outside of the transmission shaft of the spike rake assembly, and the sliding groove forms a clearance space.

[0024] In this embodiment, in order to enable the nail rake assembly to turn over the hot ash and slag in a large range when sliding, the nail rake assembly 67 includes a rotating rod 671, which is rotatably connected to the two sliders 66, and the outer wall of the rotating rod 671 is slidably connected with a mounting sleeve 672, and a plurality of nail rakes 673 are installed at the bottom of the mounting sleeve 672. A hinge seat 674 is installed on the top of the mounting sleeve 672, and the hinge seat 674 is hinged to a limiting member 675, and the limiting member 675 is slidably connected to the bottom of the cover plate 62, and a slide groove 676 that cooperates with the limiting member 675 is opened on the top of the cover plate 62, and the slide groove 676 It is wavy in shape, and the opposite ends of the slide groove 676 are both straight grooves. The limiter 675 includes a hinge block 6751 hinged to the hinge seat 674, and the top of the hinge block 6751 is rotatably connected to a sliding block 6752 that cooperates with the slide groove 676. When the spike rake assembly slides, the limiter will slide along the slide groove, and because the slide groove is wavy in shape, the limiter can drive the mounting sleeve and the spike rake to slide back and forth along the rotating rod, so that the spike rake can generate back and forth lateral movement during the sliding process, so that the hot ash at different positions can be turned over and fully cooled with the water in the water pool.

[0025] In this embodiment, a limit strip 677 is provided on the outer wall of the rotating rod 671, and the limit strip 677 is located between the two sliders 66. A limit groove cooperating with the limit strip 677 is provided on the inner wall of the mounting sleeve 672. The cooperation between the limit groove and the limit strip enables the rotating rod and the mounting sleeve to rotate synchronously.

[0026] In this embodiment, the V-shaped conveying mechanism is composed of two groups of chain assemblies, and the receiving bucket spans between the two chains. At the same time, the feeding ends of the two groups of chains are provided with horizontal sections to ensure the stability of the material receiving.

[0027] In this embodiment, in order to enable the nail rake assembly to turn over hot ash and slag at different positions when sliding back and forth, the interior of the mounting sleeve 672 is set to a hollow structure, and a second reciprocating screw 6721 is rotatably connected between the opposite side walls of the inner cavity of the mounting sleeve 672, and the third rotating gear 6722 is installed at the opposite ends of the second reciprocating screw 6721 through a one-way bearing, and a sliding sleeve 6723 is threadedly connected to the outer wall of the second reciprocating screw 6721. One end of the nail rake 673 is fixedly connected to the bottom of the sliding sleeve 6723 and passes through the bottom of the mounting sleeve 672. A third rack 6724 meshing with the third rotating gear 6722 is slidably connected through a side surface of the mounting sleeve 672 away from the second rack 69, and a limiting rod 6725 inserted into the inner cavity of the third rack 6724 is fixedly connected to the inner wall of one side of the mounting sleeve 672. A second spring 6726 is sleeved on the outer wall of the limiting rod 6725. The third rack 6724 passes through the mounting sleeve 67 2 is provided with a pressing block 6727 with a cross-section larger than the third rack 6724, wherein, when the installation sleeve 672 and the nail rake 673 slide from one end of the cover plate 62 to the other end along with the slider 66, when the pressing block 6727 contacts and squeezes the inner surface of the receiving bucket 3, it pushes the third rack 6724 to slide and squeezes the second spring 6726, and the sliding of the third rack 6724 drives the third rotating gear 6722 and the second reciprocating screw 6721 to rotate, thereby driving the sliding sleeve 6723 and the nail rake 63 to slide, and adjusting the position of the nail rake 63, and when the installation sleeve 672 slides back, the third rack 6724 returns to its original position under the action of the restoring force of the second spring 6726, and because the third rotating gear 6722 and the second reciprocating screw 6721 are connected by a one-way bearing, the reverse sliding of the third rack 6723 will not drive the second reciprocating screw 6721 to rotate, that is, the sliding sleeve 6723 will not return.

[0028] The specific working process of the above-mentioned water cooling device is as follows: The feeding end of the over-water cooling device is placed below the hot ash discharge port, and then the motor of the V-shaped conveying mechanism 2 is started to sequentially convey each receiving bucket 3 to below the discharge port, and when a receiving bucket 3 is located below the discharge port, the hot ash begins to be discharged, and then the discharge port is closed at a fixed time, and then the V-shaped conveying mechanism 2 continues to convey the hot ash; During the process of a group of receiving buckets 3 that have received hot ash moving into the water pool 1, the cover plate conveying mechanism 5 conveys a corresponding cover plate 62 to the corresponding position and moves synchronously with the receiving bucket 3, so that the cover plate 62 is covered on the receiving bucket 3, and then the receiving bucket 3 and the cover plate 62 enter the horizontal section in the water pool 1 and are submerged in the water surface.

[0029] At this time, the first rotating gear 65 on the cover plate 62 is meshed with the first rack 7 on the inner wall of the pool 1, so as to drive the first rotating gear 65 to rotate, and then drive the two first reciprocating screws 63 to rotate synchronously through the driving member 64 (which can be a belt driving member, which can synchronously drive the two first reciprocating screws 63 to rotate synchronously), drive the two sliders 66 and the nail rake assembly 67 to start sliding from one end of the cover plate 62, and during the sliding process, the second rotating gear 68 slides, and the second rack 69 can be set to make the second rotating gear 68 and the nail rake assembly 67 rotate synchronously. 7 is turned over, so that the nail rake 673 on the nail rake assembly 67 is turned over from the horizontal state to the vertical state, and slides under the drive of the first reciprocating screw 63, thereby turning over the hot ash in the receiving bucket 3. In addition, during the sliding process of the nail rake assembly 67, the cooperation of the limit member 675 and the wavy slide groove 676 drives the mounting sleeve 672 and the nail rake 673 to move back and forth along the rotating rod 671, so that the nail rake 673 can turn over the hot ash at different positions, so that the water in the water pool 1 can fully contact the hot ash, thereby improving the cooling effect.

[0030] After the spike rake assembly 67 slides and disengages from the second rack 69, the arc-shaped limit block 611 slides downward under the action of the restoring force of the first spring 614, so that the limit teeth on the arc-shaped limit block 611 clamp and fix the second rotating gear 68, thereby ensuring that the angle can be kept fixed without deflection during the sliding process of the spike rake assembly 67.

[0031] When the nail rake assembly 67 slides back, the abutment block 613 contacts the inclined surface of the end of the second rack 69 and pushes the arc-shaped limit block 611 to slide upward, so that the limit tooth disengages from the second rotating gear 68, and then the second rotating gear 68 contacts the second rack 69 and rotates, so that the nail rake assembly 673 flips to a position parallel to the cover plate 62 and sinks into the cover plate 62; Then the first rotating gear 65 is separated from the first rack 7, and the receiving bucket 3 rises from the water pool 1, and the cover plate 62 is gradually separated from the receiving bucket 3, and the water in the receiving bucket 3 is discharged through the first drainage hole 4, and then the receiving bucket 3 continues to be transported to the top of the other end of the V-shaped conveying mechanism 2 and flips over and pours the material before being immersed in the water pool 1 for the next material receiving and water cooling work, and this reciprocating process is used to realize the water cooling and collection operation of the hot ash.

[0032] Please refer to Figure 1-11 As shown, the second embodiment of the present invention is: An asphalt extraction process comprises the following steps: S1. Adding coal ash residue containing 15% asphalt to washing oil, and the weight ratio of coal ash residue to washing oil is 1:3, mixing, melting and heating to 100-130° C. to form a mixed liquid with an ash content of 3%-5%; S2, centrifuging the mixed solution three times to obtain ash residue and a supernatant with an ash content of 0.04%; The three centrifugation processes in step S2 are specifically as follows: The mixed liquid is centrifuged for the first time by a first centrifuge at a main machine frequency of 33 Hz and a secondary machine frequency of 35 Hz, to obtain a first ash residue and a first supernatant with an ash content of 1% respectively; The first supernatant is centrifuged for a second time by a second centrifuge at a main machine frequency of 42 Hz and a secondary machine frequency of 50 Hz to obtain a second ash residue and a second supernatant with an ash content of 0.3% respectively; The second supernatant is centrifuged for a third time by a third centrifuge at a main machine frequency of 45 Hz and an auxiliary machine frequency of 45 Hz to obtain ash and a supernatant with an ash content of 0.04% respectively; S3, heating the supernatant to 400° C. in a tubular heating furnace to obtain first wash oil vapor and liquid asphalt, and condensing the first wash oil vapor through a heat exchanger to obtain liquid wash oil for recycling; S4. The ash in step S2 is uniformly injected into the storage tank and then pumped into the paddle machine through a concrete pump for stirring, heated to 300°C and dried to obtain a second washing oil vapor and dry ash. The second washing oil vapor is heat-exchanged to 30°C through a heat exchanger to obtain liquid washing oil at room temperature for recycling; and the ash in step S4 can also be transported from the storage tank to the paddle machine by a screw feeder.

[0033] S5. Cool the dry ash through water through the water cooling device in Example 1, pour it onto a conveyor belt, and transport it to a silo for storage and standby use.

[0034] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot ash water cooling device, characterized in that: The invention comprises a water pool (1) and a V-shaped conveying mechanism (2) installed in the water pool (1), wherein both ends of the V-shaped conveying mechanism (2) are higher than the water pool (1), and a horizontal section is arranged at the bottom of the V-shaped conveying mechanism (2), and a plurality of receiving buckets (3) for receiving hot ash and slag are arranged at equal distances on the V-shaped conveying mechanism (2), and a plurality of first drainage holes (4) are arranged on the side wall and the bottom of the receiving bucket (3), and a cover plate conveying mechanism (5) cooperating with the middle section of the V-shaped conveying mechanism (2) is installed in the middle of the top of the water pool (1), and a cover plate mechanism (6) cooperating with the receiving bucket (3) is installed on the cover plate conveying mechanism (5), and when the receiving bucket (3) enters the water pool (1) from the top of the water pool (1), the cover plate mechanism (6) is covered on the receiving bucket (3), and when the receiving bucket (3) rises from the water pool (1) to the top of the water pool (1), the cover plate mechanism (6) is separated from the receiving bucket (3); The cover plate mechanism (6) comprises a mounting bar (61), and the mounting bar (61) is mounted on the cover plate conveying mechanism (5); a cover plate (62) with a bottom recessed inwardly is mounted on one side of the mounting bar (61), and the bottom opening of the cover plate (62) is adapted to the opening of the receiving bucket (3); two first reciprocating screws (63) are rotatably connected between opposite ends of the inner cavity of the cover plate (62); driving members (64) connected to the two first reciprocating screws (63) are symmetrically fixedly connected at opposite ends of the cover plate (62); and a driving shaft of the driving member (64) is mounted with a first rotating gear (65), a slider (66) is threadedly connected to the outer wall of the first reciprocating screw (63), a spike rake assembly (67) inserted into the receiving bucket (3) is hingedly installed between the two sliders (66), and a first rack (7) that cooperates with the first rotating gear (65) is fixedly connected to the inner walls of the opposite sides of the water pool (1), and the first rack (7) is arranged corresponding to the horizontal section of the V-shaped transmission mechanism (2), and when the first reciprocating screw (63) drives the slider (66) to slide, the spike rake assembly (67) and the two sliders (66) are relatively flipped and vertically inserted into the receiving bucket (3).

2. The hot ash water cooling device according to claim 1, characterized in that: Two sliders (66) are respectively passed through at opposite ends of the rotating shaft of the spike rake assembly (67) and are symmetrically mounted with second rotating gears (68); a second rack (69) meshing with the second rotating gear (68) is symmetrically fixed to the inner wall of the cover plate (62); and the second rack (69) is located below the second rotating gear (68).

3. The hot ash water cooling device according to claim 2, characterized in that: A mounting seat (610) with a hollow interior is symmetrically mounted on a side surface of the two sliders (66) that is away from each other. The second rotating gear (68) is located inside the mounting seat (610), and the second rotating gear (68) passes through the bottom of the mounting seat (610). An arc-shaped limit block (611) that cooperates with the second rotating gear (68) is slidably connected to the inner cavity of the mounting seat (610), and the cross section of the arc-shaped limit block (611) is larger than the cross section of the second rotating gear (68) and is located above the second rotating gear (68). The arc-shaped limit block (611) is provided with an arc surface that cooperates with the second rotating gear (68). The two rotating gears (68) are provided with mutually cooperating limiting teeth, the middle of the bottom of the two opposite sides of the arc-shaped limiting block (611) are fixedly connected with sliding rods (612), the bottom of the sliding rod (612) passes through the mounting seat (610) and is provided with an abutment block (613), one end of the second rack (69) and the abutment block (613) are provided with mutually cooperating inclined surfaces, a first spring (614) is provided between the top of the arc-shaped limiting block (611) and the top of the inner cavity of the mounting seat (610), and the sliding rod (612) is penetrated by a clearance groove which cooperates with the rotating shaft of the spike rake assembly (67).

4. The hot ash water cooling device according to claim 1, characterized in that: The spike rake assembly (67) comprises a rotating rod (671), wherein the rotating rod (671) is rotatably connected to two sliders (66), an outer wall of the rotating rod (671) is slidably connected to a mounting sleeve (672), a plurality of spike rakes (673) are mounted on the bottom of the mounting sleeve (672), a hinge seat (674) is mounted on the top of the mounting sleeve (672), a limit piece (675) is hingedly connected to the hinge seat (674), and the limit piece (675) is slidably connected to the bottom of the cover plate (62), a slide groove (676) cooperating with the limit piece (675) is provided on the top of the cover plate (62), and the slide groove (676) is wavy, and opposite ends of the slide groove (676) are both straight grooves.

5. The hot ash water cooling device according to claim 4, characterized in that: The interior of the mounting sleeve (672) is configured as a hollow structure, and a second reciprocating screw (6721) is rotatably connected between opposite side walls of the inner cavity of the mounting sleeve (672), and third rotating gears (6722) are installed at opposite ends of the second reciprocating screw (6721) via one-way bearings, and a sliding sleeve (6723) is threadedly connected to the outer wall of the second reciprocating screw (6721), and one end of the spike rake (673) is fixedly connected to the bottom of the sliding sleeve (6723) and passes through the bottom of the mounting sleeve (672). A third rack (6724) meshingly connected to the third rotating gear (6722) is slidably connected through one side of the mounting sleeve (672), and a limiting rod (6725) inserted into the inner cavity of the third rack (6724) is fixedly connected to the inner wall of one side of the mounting sleeve (672), and a second spring (6726) is sleeved on the outer wall of the limiting rod (6725), and a pressure block (6727) having a cross-section larger than that of the third rack (6724) is provided at one end of the third rack (6724) passing through the mounting sleeve (672).

6. The hot ash water cooling device according to claim 5, characterized in that: The limiting member (675) comprises an articulated block (6751) articulated to the articulated seat (674), and a sliding block (6752) which cooperates with the sliding groove (676) is rotatably connected to the top of the articulated block (6751).

7. The hot ash water cooling device according to claim 6, characterized in that: The outer wall of the rotating rod (671) is provided with a limit strip (677), and the limit strip (677) is located between the two sliding blocks (66). The inner wall of the mounting sleeve (672) is provided with a limit groove that cooperates with the limit strip (677).

8. An asphalt extraction process, characterized in that: The following steps are involved: S1. Adding coal ash residue containing 15% asphalt to washing oil, and the weight ratio of coal ash residue to washing oil is 1:2.5-5.5, mixing, melting and heating to 100-130° C. to form a mixed liquid with an ash content of 3%-5%; S2, centrifuging the mixed solution three times to obtain ash residue and a supernatant with an ash content of 0.04%; S3, heating the supernatant to 400° C. in a tubular heating furnace to obtain first wash oil vapor and liquid asphalt, and condensing the first wash oil vapor through a heat exchanger to obtain liquid wash oil for recycling; S4, injecting the ash residue in step S2 into the storage tank, pumping it into the paddle machine through the concrete pump, stirring it, heating it to 300°C and drying it, obtaining the second washing oil vapor and dry ash residue, and exchanging the second washing oil vapor to 30°C through the heat exchanger to obtain the room temperature liquid washing oil for recycling; S5. Cool the dry ash through water through the water cooling device according to any one of claims 1 to 7, pour it onto a conveyor belt and transport it to a silo for storage and standby use.

9. An asphalt extraction process according to claim 8, characterized in that: The three centrifugation processes in step S2 are specifically as follows: The mixed liquid is centrifuged for the first time by a first centrifuge at a main engine frequency of 30-35 Hz and a secondary engine frequency of 33-37 Hz, to obtain a first ash residue and a first supernatant with an ash content of 1% respectively; The first supernatant is centrifuged for a second time by a second centrifuge at a main engine frequency of 40-45 Hz and an auxiliary engine frequency of 40-60 Hz, to obtain a second ash residue and a second supernatant with an ash content of 0.3% respectively; The second supernatant is centrifuged for the third time by a third centrifuge at a main engine frequency of 40-50 Hz and an auxiliary engine frequency of 40-50 Hz to obtain ash and a supernatant with an ash content of 0.04%, respectively.

10. The asphalt extraction process according to claim 8, characterized in that: In step S4, the ash can also be transported from the storage tank to the paddle machine using a screw feeder.

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