CN218973095U - Fly ash drying equipment - Google Patents

Abstract

The utility model relates to a fly ash drying equipment relates to drying equipment's field, including the heating cylinder, still include stoving case, a plurality of heating element, extrusion subassembly and drive assembly, the stoving case is fixed in inside the heating cylinder, the heating element is fixed to be located the heating cylinder with between the stoving case, the heating element can be right the stoving case heating; the extrusion assembly is arranged in parallel and comprises a second screen mesh and an extrusion plate, the second screen mesh is fixed on the inner wall of the drying box, the second screen mesh divides the inlet end and the outlet end of the drying box into two chambers, the extrusion plate is arranged on the surface of the second screen mesh in a sliding manner, and the sliding coverage area of the extrusion plate is equal to or smaller than the area of the second screen mesh; the driving assembly is in transmission connection with the extrusion plate so as to drive the extrusion plate to slide on the surface of the second screen. The method has the effect of improving the fact that part of fly ash is coagulated into blocks and cannot be crushed.

Description

Fly ash drying equipment

Technical Field

The application relates to the field of drying equipment, in particular to fly ash drying equipment.

Background

Fly ash is fine ash collected from flue gas after coal combustion, is one of industrial waste residues, but has higher recycling value.

Among the related art, application number 201721428000.7's application file discloses a be used for fly ash drying device, including first fixed block, the second fixed block, the barrel, the feed inlet, the mount, the output shaft, a motor, a bearing, the vacuum pump, the filter core, the deposition case, the connecting axle, the feed outlet, the ash suction pipe, the heating wire, the cylinder, the guiding gutter, the heat preservation dustcoat, PTC heat-generating body and connecting pipe, pour into the fly ash from the feed inlet in the cylinder, through the inside heating wire of cylinder and the embedded PTC heat-generating body of barrel inner wall, can heat the stoving fly ash, afterwards flow out through the feed outlet, the vacuum pump passes through the air in the deposition case of connecting pipe extraction, reduce the inside atmospheric pressure of deposition case, outside air passes through the through-hole entering deposition case that the ash suction pipe surface was opened, outside air brings the fly ash of remaining in the barrel into the deposition case simultaneously.

Aiming at the related technology, the fly ash is injected into the roller from the feeding hole, the fly ash can be heated and dried through the electric heating wire and the PTC heating body, and then discharged from the discharging hole, although the fly ash which is partially coagulated into blocks can be crushed in the rotating process of the roller, a small part of the fly ash which is coagulated into blocks can not be crushed, so that the fly ash can not be completely dried, and finally the fly ash still is discharged from the discharging hole along with the dried fly ash.

Disclosure of Invention

In order to solve the problem that a part of fly ash is coagulated into blocks and cannot be crushed, the application provides fly ash drying equipment.

The application provides a fly ash drying equipment adopts following technical scheme:

the fly ash drying equipment comprises a heating cylinder, a drying box, a plurality of heating assemblies, an extrusion assembly and a driving assembly, wherein the drying box is fixed inside the heating cylinder, the heating assemblies are fixedly arranged between the heating cylinder and the drying box, and the heating assemblies can heat the drying box;

the extrusion assembly is arranged in parallel and comprises a second screen mesh and an extrusion plate, the second screen mesh is fixed on the inner wall of the drying box, the second screen mesh divides the inlet end and the outlet end of the drying box into two chambers, the extrusion plate is arranged on the surface of the second screen mesh in a sliding manner, and the sliding coverage area of the extrusion plate is equal to or smaller than the area of the second screen mesh;

the driving assembly is in transmission connection with the extrusion plate so as to drive the extrusion plate to slide on the surface of the second screen.

By adopting the technical scheme, when the coal ash is dried, the coal ash is injected into the drying cylinder, the heating component can heat the drying cylinder, meanwhile, the coal ash can fall on the second screen, and the coal ash which can pass through the second screen can be discharged out of the heating cylinder after being heated by the heating component; can't extrude once more through the fly ash of second screen cloth, when heating element heated the fly ash, drive assembly driven stripper plate moved, and the stripper plate can be with the fly ash crushing that has coagulated into the piece, outside discharging heating cylinder after heating, compare with the correlation technique, this application stripper plate can be with injecting into the inside part of stoving section of thick bamboo and have coagulated into quick fly ash crushing, can make the more abundant of fly ash stoving.

Optionally, the drive assembly includes screw rod, dwang, guide bar and third motor, the screw rod with second screen cloth parallel arrangement, screw rod one end with stoving incasement wall rotates to be connected, the other end wear to locate behind the stripper plate with the dwang is fixed, the dwang wear to locate in proper order stoving case with the heating cylinder with the output shaft of third motor passes through shaft coupling fixed connection, the guide bar with screw rod parallel arrangement, just the guide bar with the screw rod is located the second screen cloth homonymy, the guide bar both ends are fixed in stoving case lateral wall.

Through adopting above-mentioned technical scheme, when the fly ash falls on the second screen cloth, the second motor drive dwang rotates, and the screw rod moves along with the dwang synchronous motion to drive the stripper plate and do reciprocating motion on the second screen cloth, realized extruded automated operation.

Optionally, still include drainage subassembly, drainage subassembly includes a first screen cloth, two articulated plates, two connecting rods and two second motors, first screen cloth level set up in second screen cloth top, two articulated plates respectively through one the connecting rod rotate connect in first screen cloth bottom, just the articulated plate with first screen cloth contact, the connecting rod wears to locate in proper order stoving case lateral wall with the heating cylinder lateral wall with the output shaft of second motor passes through shaft coupling fixed connection.

Through adopting above-mentioned technical scheme, after the fly ash pours into the stoving incasement into, the fly ash can fall on the articulated slab, and at this moment, two articulated slab contacts, starts the second motor, and second motor drive connecting rod rotates, and the connecting rod drives the articulated slab and moves towards keeping away from stoving case roof, can make two articulated slab separation, and at this moment, the fly ash can fall on the second screen cloth through the articulated slab, when not needing the fly ash to fall, starts the second motor again, and the connecting rod drives the articulated slab and moves towards being close to stoving case roof, makes two articulated slab contacts, is favorable to controlling the whereabouts volume of fly ash.

Optionally, the extrusion assembly further comprises bristles, one side of the extrusion plate is fixed with the bristles, and the bristles are in contact with the second screen.

Through adopting above-mentioned technical scheme, brush hair and second screen cloth contact, on the one hand brush hair on the stripper plate can be along with the stripper plate to the extrusion of fly ash, on the other hand, brush hair along with stripper plate gliding in-process, brush hair can brush the fly ash on the second screen cloth, makes the better circumstances that passes through the second screen cloth of fly ash, can reduce the second screen cloth and stop up

Optionally, a material injection port is formed in the top wall of the heating cylinder, a material injection pipe is arranged at the material injection port of the heating cylinder, and a material outlet is formed in the bottom wall of the heating cylinder;

the drying box is communicated with the material injection pipe, a discharge hole is formed in one side, away from the material injection pipe, of the drying box, and a discharge hole of the heating cylinder is communicated with the discharge hole of the drying box.

By adopting the technical scheme, when the fly ash to be dried is injected into the drying cylinder from the feeding pipe, the fly ash can be dried, and the fly ash can be directly discharged from the discharge hole after being dried, so that the blocking condition of the fly ash is reduced.

Optionally, still include stirring subassembly, stirring subassembly includes axis of rotation, a plurality of flabellum and a first motor, the axis of rotation wears to locate in proper order the roof of heating cylinder with the roof of stoving case with the output shaft of first motor passes through shaft coupling fixed connection, the axis of rotation in stoving incasement one end is fixed with a plurality of the flabellum.

Through adopting above-mentioned technical scheme, when the fly ash from annotating the material pipe injection stoving section of thick bamboo in, start first motor, first motor drive axis of rotation rotates, and the flabellum rotates along with the axis of rotation, can hit the fly ash of injection, can be with the part condensation piece diminish, be favorable to the stoving to the fly ash.

Optionally, still include vibration subassembly, vibration subassembly includes connecting rod, cylinder and hits the piece, the connecting rod wear to locate the heating cylinder and with heating cylinder sliding connection, the cylinder can drive the connecting rod motion, hit the piece and be fixed in the connecting rod, just hit the piece can with the stoving case contact.

Through adopting above-mentioned technical scheme, when the fly ash after drying is discharged through the discharge gate, start the cylinder, the piston rod of cylinder promotes the connecting rod motion, hits the piece and can follow the connecting rod motion, hits the piece and contacts with the stoving case at the in-process of motion, can hit the stoving case, makes stoving case diapire produce the vibration to the whereabouts of fly ash is accelerated.

Optionally, the fly ash cooling device further comprises a refrigerating assembly, wherein the refrigerating assembly comprises a dust cover and a fan, the dust cover is sleeved on the fan, the dust cover is installed on the heating cylinder and is close to the discharge hole, and the fan is used for cooling the fly ash.

By adopting the technical scheme, when the dried fly ash falls to the discharge port, the fan is started to cool the fly ash, so that the temperature of the fly ash is reduced rapidly, and the condition that the fly ash utilizes residual temperature to generate water drops in the collector is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the extrusion plate can crush the coal ash which is coagulated into blocks, and the coal ash is discharged out of the heating cylinder after being heated;

2. the screw rod synchronously moves along with the rotating rod, so that the extruding plate is driven to reciprocate on the second screen, and the automatic operation of extrusion is realized;

3. the connecting rod drives the hinged plate to move, so that the hinged plate can be separated or contacted, and the falling amount of the fly ash can be controlled.

Drawings

Fig. 1 is a schematic view of the overall structure in the present embodiment;

fig. 2 is a sectional view in the present embodiment;

fig. 3 is a schematic structural view of the drainage assembly, the driving assembly and the pressing assembly in the present embodiment.

Reference numerals illustrate: 1. a heating cylinder; 11. a material injection port; 12. a material injection pipe; 13. a discharge port; 2. a heating assembly; 21. a heating plate; 3. a drying box; 31. a fixed rod; 32. a discharge port; 4. a stirring assembly; 41. a first motor; 42. a rotating shaft; 43. a fan blade; 5. a drainage assembly; 51. a first screen; 52. a hinged plate; 53. a connecting rod; 54. a second motor; 55. a fixed base; 6. an extrusion assembly; 61. an extrusion plate; 62. brushing; 63. a second screen; 7. a drive assembly; 71. a screw; 72. a rotating lever; 73. a guide rod; 74. a third motor; 75. a base; 8. a refrigeration assembly; 81. a dust cover; 82. a blower; 9. a vibration assembly; 91. a fixing plate; 92. a cylinder; 93. a connecting rod; 94. the block is hit.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses fly ash drying equipment. Referring to fig. 1 and 2, a fly ash drying apparatus includes a heating cylinder 1, a heating assembly 2, a drying box 3, a stirring assembly 4, a drainage assembly 5, an extrusion assembly 6, a driving assembly 7, a refrigerating assembly 8, and a vibration assembly 9, wherein the heating assembly 2, the drying box 3, the extrusion assembly 6, the stirring assembly 4, the driving assembly 7, and the vibration assembly 9 are all disposed above the refrigerating assembly 8, the stirring assembly 4 and the drainage assembly 5 are disposed above the extrusion assembly 6, and the extrusion assembly 6 is fixedly disposed in the drying box 3.

Referring to fig. 2, a heating cylinder 1 is a hollow cylinder, a material injection port 11 is formed in the top wall of the heating cylinder 1, a material injection pipe 12 is arranged at the material injection port 11 of the heating cylinder 1, the material injection pipe 12 is communicated with the heating cylinder 1, the material injection pipe 12 is welded to the heating cylinder 1, and a material outlet 13 is formed in the bottom wall of the heating cylinder 1; the heating assembly 2 comprises a plurality of heating plates 21, the heating plates 21 are all located in the heating cylinder 1, the heating plates 21 are vertically arranged, the heating plates 21 are welded on the inner wall of the heating cylinder 1, and in the embodiment, the heating plates 21 are distributed along the circumferential direction of the heating cylinder 1.

Referring to fig. 2, a drying box 3 is located inside a heating cylinder 1, the drying box 3 is a hollow box body, the setting direction of the drying box 3 is consistent with the placement direction of the heating cylinder 1, a plurality of fixing rods 31 are arranged on the outer wall of the drying box 3, one ends of the fixing rods 31 are welded to the drying box 3, the other ends of the fixing rods are welded to the heating cylinder 1, the top wall of the drying box 3 is communicated with a material injection pipe 12, a material outlet 32 is formed in the bottom wall of the drying box 3, and the material outlet 32 is communicated with a material outlet 13 of the heating cylinder 1.

Referring to fig. 2, the stirring assembly 4 includes a first motor 41, a rotating shaft 42 and a plurality of fan blades 43, the casing of the first motor 41 is fixedly connected to the top wall of the heating cylinder 1 through a screw, the output shaft of the first motor 41 penetrates through the top wall of the heating cylinder 1, the output shaft of the first motor 41 can rotate along the top wall of the heating cylinder 1, the rotating shaft 42 is vertically arranged, the rotating shaft 42 sequentially penetrates through the top wall of the heating cylinder 1 and the top wall of the drying box 3, the rotating shaft 42 is rotationally connected to the top wall of the drying box 3, the output shaft of the first motor 41 and one end of the rotating shaft 42 are coaxially and fixedly connected through a shaft coupling, the fan blades 43 are located in the drying box 3, and the fan blades 43 are welded to the peripheral wall of the rotating shaft 42.

Referring to fig. 2 and 3, the drainage assembly 5 includes a first screen 51, two hinged plates 52, two connecting rods 53, two second motors 54 and two fixing bases 55, the first screen 51 is horizontally placed in the drying box 3, the first screen 51 can be welded on the inner wall of the drying box 3, and can also be fixed on the inner wall of the drying box 3 through screws, in this embodiment, the first screen 51 is fixedly connected on the inner wall of the drying box 3 through screws, the two connecting rods 53 are located on one side, far away from the top wall of the drying box 3, of the first screen 51, the two connecting rods 53 are arranged in parallel, the two connecting rods 53 are rotatably connected to the first screen 51, the connecting rods 53 sequentially penetrate through the side wall of the drying box 3 and the side wall of the heating cylinder 1, the connecting rods 53 are coaxially and fixedly connected with an output shaft of the second motor 54 through a coupling, the two hinged plates 52 are located on one side, far away from the first screen 51, the two hinged plates 52 are respectively welded on one end, located in the drying box 3, of the connecting rods 53 are driven by the second motor 54 to rotate, the hinged plates 52 rotate along with the connecting rods 53, and the connecting rods 53 rotate along with the connecting rods 53, so that the two hinged plates 52 can contact the two hinged plates with the two flyash, and flow rates can be controlled.

Referring to fig. 2 and 3, the pressing assembly 6 is located below the drainage assembly 5, the pressing assembly 6 includes a second screen 63, a pressing plate 61 and bristles 62, the second screen 63 is located in the drying box 3, the second screen 63 is located below the first screen 51, the second screen 63 is arranged parallel to the first screen 51 and is fixed in the same manner, the mesh opening of the first screen 51 is larger than the mesh opening of the second screen 63, the pressing plate 61 is slidably arranged on the surface of the second screen 63, the sliding coverage area of the pressing plate 61 is equal to or slightly smaller than the area of the second screen 63, bristles 62 are fixedly adhered to one side of the pressing plate 61 close to the second screen 63, the bristles 62 are in contact with the upper surface of the second screen 63, and when the fly ash falls on the second screen 63, the driving assembly 7 pushes the pressing plate 61 to slide on the second screen 63, the bristles 62 are in contact with the fly ash, and the coagulated fly ash can be crushed.

Referring to fig. 2 and 3, the driving assembly 7 includes a screw 71, a rotating rod 72, a guide rod 73, a third motor 74 and a base 75, the screw 71 is located in the drying box 3, the screw 71 is perpendicular to the side wall of the drying box 3, a connecting seat is welded on the side wall of the drying box 3 at the position of the second screen 63, one end of the screw 71 is rotationally connected with the connecting seat, the other end of the screw is penetrated through the extruding plate 61 and then welded with one end of the rotating rod 72, the other end of the rotating rod 72 is sequentially penetrated through the side wall of the drying box 3 and the side wall of the heating cylinder 1 and is fixedly connected with the output shaft of the third motor 74 through a coupling, the extruding plate 61 is in threaded connection with the screw 71, the base 75 is welded on the outer wall of the heating cylinder 1, the casing of the third motor 74 is fixedly connected with the base 75 through a screw, the output shaft of the third motor 74 and the rotating rod 72 are coaxially and fixedly connected through the coupling, the third motor 74 can drive the rotating rod 72 to rotate positively and negatively, the screw 71 can synchronously move along the length direction of the extruding plate 61, the guide rod 73 is welded on the side wall of the drying box 3, the guide rod 73 is perpendicular to the side wall of the drying box 3, and the guide rod 73 is parallel to the screw 71, and the guide rod 73 is located on the same side as the second screen 63.

Referring to fig. 2, the refrigerating assembly 8 is fixedly arranged at the discharge port 13 of the heating cylinder 1, the refrigerating assembly 8 comprises a dust cover 81 and a fan 82, the dust cover 81 is sleeved on the fan 82, the dust cover 81 is fixedly connected to the side wall of the discharge port 13 of the heating cylinder 1 through screws, and the air outlet direction of the fan 82 is consistent with the falling direction of the fly ash.

Referring to fig. 2, two vibration components 9 are provided, and two vibration components 9 use the axis of a heating cylinder 1 to set up as axisymmetric, vibration components 9 include fixed plate 91, cylinder 92, connecting rod 93 and strike piece 94, fixed plate 91 welds in heating cylinder 1 diapire, the cylinder body of cylinder 92 passes through screw fixed connection in fixed plate 91 keeps away from heating cylinder 1 one side, connecting rod 93 level sets up, connecting rod 93 wears to locate heating cylinder 1 bottom and sliding connection in heating cylinder 1, connecting rod 93 one end passes through screw fixed connection with the piston rod of cylinder 92, the other end welds in strike piece 94, cylinder 92 drives connecting rod 93 motion, strike piece 94 follow connecting rod 93 synchronous motion, strike piece 94 can strike stoving case 3 diapire.

The implementation principle of the fly ash drying equipment provided by the embodiment of the application is as follows: when the fly ash needs to be dried, the fly ash is injected into the drying box 3 along the injection pipe 12 from the injection hole 11, at the moment, the heating plate 21 is started to heat the drying box 3, meanwhile, the first motor 41 is started, the first motor 41 drives the rotating shaft 42 to rotate, the fan blades 43 rotate along with the rotating shaft 42, part of the coagulated fly ash can be smashed by the fan blades 43 in the rotating process, then the fly ash falls on the first screen 51, at the moment, the second motor 54 is started, the second motor 54 drives the connecting rod 53 to rotate, the connecting rod 53 drives the hinged plate 52 to rotate, the two hinged plates 52 are separated, the fly ash can fall on the second screen 63 from the first screen 51, after the fly ash falls for a period of time, the second motor 54 is started again to enable the two hinged plates 52 to be contacted, then the third motor 74 is started, the third motor 74 drives the screw 71 to rotate, the screw 71 drives the extrusion plate 61 to slide on the second screen 63, and accordingly the fly ash is extruded from the discharge hole 13 through the second screen 63.

When the fly ash falls on the first screen 51, two second motors 54 are started at the same time, the second motors 54 drive the connecting rods 53 to rotate, the connecting rods 53 drive the hinged plates 52 to rotate towards the second screen 63, so that the hinged plates 52 are separated, at the moment, the fly ash falls on the second screen 63 from the first screen 51, after the fly ash falls for a period of time, the second motors 54 are started again, the second motors 54 drive the connecting rods 53 to rotate in opposite directions, and the hinged plates 52 can be contacted, at the moment, the fly ash stops falling.

When the fly ash needs to be extruded, the third motor 74 is started, and the third motor 74 drives the screw 71 to rotate, so that the extrusion plate 61 on the second screen 63 can slide on the second screen 63 along the length direction of the screw 71, and the fly ash on the two screens is extruded.

When the dried fly ash falls to the discharge port 32 after passing through the screen mesh, the cylinder 92 is started, the cylinder 92 drives the connecting rod 93 to move, the beating block 94 moves synchronously along with the connecting rod 93, when the beating block 94 contacts with the bottom wall of the drying box 3, the beating block 94 can beat the bottom wall of the drying box 3, and the beating block 94 continuously beats the bottom wall of the drying box 3 in the moving process, so that the fly ash can be accelerated to flow out.

When the fly ash falls to the discharge port 13, the fan 82 is started, and the air generated by the fan 82 can cool the dried fly ash.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The fly ash drying equipment comprises a heating cylinder (1), and is characterized in that: the drying box (3) is fixed inside the heating cylinder (1), the heating assembly (2) is fixedly arranged between the heating cylinder (1) and the drying box (3), and the heating assembly (2) can heat the drying box (3);

the extrusion assembly (6) is arranged in parallel, the extrusion assembly (6) comprises a second screen (63) and an extrusion plate (61), the second screen (63) is fixed on the inner wall of the drying box (3), the second screen (63) divides the inlet end and the outlet end of the drying box (3) into two chambers, the extrusion plate (61) is slidably arranged on the surface of the second screen (63), and the sliding coverage area of the extrusion plate (61) is equal to or smaller than the area of the second screen (63);

the driving assembly (7) is in transmission connection with the extrusion plate (61) so as to drive the extrusion plate (61) to slide on the surface of the second screen (63).

2. The fly ash drying apparatus as claimed in claim 1, wherein: the drive assembly (7) comprises a screw (71), a rotating rod (72), a guide rod (73) and a third motor (74), wherein the screw (71) is arranged in parallel with the second screen (63), one end of the screw (71) is rotationally connected with the inner wall of the drying box (3), the other end of the screw is penetrated through the extrusion plate (61) and then fixed with the rotating rod (72), the rotating rod (72) is sequentially penetrated through the drying box (3) and the heating cylinder (1) and the output shaft of the third motor (74) is fixedly connected through a coupler, the guide rod (73) is arranged in parallel with the screw (71), the guide rod (73) is positioned on the same side as the second screen (63), and two ends of the guide rod (73) are fixed on the side wall of the drying box (3).

3. The fly ash drying apparatus as claimed in claim 1, wherein: still include drainage subassembly (5), drainage subassembly (5) include a first screen cloth (51), two articulated slab (52), two connecting rods (53) and two second motors (54), first screen cloth (51) level set up in second screen cloth (63) top, two articulated slab (52) respectively through one connecting rod (53) rotate connect in first screen cloth (51) bottom, just articulated slab (52) with first screen cloth (51) contact, connecting rod (53) are worn to locate in proper order stoving case (3) lateral wall with heating cylinder (1) lateral wall with the output shaft of second motor (54) passes through shaft coupling fixed connection.

4. The fly ash drying apparatus as claimed in claim 1, wherein: the extrusion assembly (6) further comprises bristles (62), one side of the extrusion plate (61) is fixed with the bristles (62), and the bristles (62) are in contact with the second screen (63).

5. The fly ash drying apparatus as claimed in claim 1, wherein: a material injection port (11) is formed in the top wall of the heating cylinder (1), a material injection pipe (12) is arranged at the material injection port (11) of the heating cylinder (1), and a discharge port (13) is formed in the bottom wall of the heating cylinder (1);

the drying box (3) is communicated with the material injection pipe (12), a material outlet (32) is formed in one side, away from the material injection pipe (12), of the drying box (3), and a material outlet (13) of the heating cylinder (1) is communicated with the material outlet (32) of the drying box (3).

6. The fly ash drying apparatus as claimed in claim 1, wherein: still include stirring subassembly (4), stirring subassembly (4) include axis of rotation (42), a plurality of flabellum (43) and a first motor (41), axis of rotation (42) are worn to locate in proper order roof of heating cylinder (1) with the roof of stoving case (3) with the output shaft of first motor (41) passes through shaft coupling fixed connection, axis of rotation (42) in one end in stoving case (3) is fixed with a plurality of flabellum (43).

7. The fly ash drying apparatus as claimed in claim 1, wherein: still include vibration subassembly (9), vibration subassembly (9) include connecting rod (93), cylinder (92) and hit piece (94), connecting rod (93) wear to locate heating cylinder (1) and with heating cylinder (1) sliding connection, cylinder (92) can drive connecting rod (93) motion, hit and hit piece (94) and be fixed in connecting rod (93), just hit piece (94) can with stoving case (3) contact.

8. The fly ash drying apparatus as claimed in claim 5, wherein: the novel coal ash cooling device is characterized by further comprising a refrigerating assembly (8), wherein the refrigerating assembly (8) comprises a dust cover (81) and a fan (82), the dust cover (81) is sleeved on the fan (82), the dust cover (81) is fixed on the heating cylinder (1) and is close to the discharge port (13), and the fan (82) is used for cooling coal ash.

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