A crushing device for recycling solid asphalt

Abstract

The present invention relates to the technical field of asphalt recovery, specifically to a crushing device for solid asphalt recovery, including a crushing kettle and a top cover fixed with screws and opened at the top of the crushing kettle, a feed port is provided on one side of the upper end surface of the top cover, and a support plate is fixed in the middle of the upper end surface of the top cover, and a motor is fixed on the top of the support plate; a crushing assembly 1 is arranged inside the crushing kettle, and the crushing assembly 1 includes a crushing head and crushing sub-plates distributed outside the crushing head, the crushing sub-plates are in a conical structure, and the bottom is designed to be open, and a plurality of protrusions for grinding and crushing are fixed on the outer surface of the crushing head and the inner surface of the crushing sub-plates of the conical structure. The present application designs a crushing assembly 1 that can grind and crush solid asphalt in a circumferential rotation and drives the crushing sub-plates to move up and down to cooperate with the rotating crushing head to grind and crush solid asphalt particles up and down at the same time, thereby improving the crushing and grinding effect of solid asphalt and reducing the generation of flaky asphalt blocks.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt recovery, and in particular to a crushing device for recovering solid asphalt. Background Art

[0002] Asphalt is an organic cementitious material composed of hydrocarbons, non-metallic derivatives and other substances, and is often used in waterproofing, asphalt waterproofing membranes and other fields;

[0003] Solid asphalt is a recyclable solid asphalt waste in the production of asphalt. In the existing equipment, during the process of crushing solid asphalt blocks, the crushing cutter head in the crusher cuts the asphalt blocks. Due to the fact that some fixed asphalt particles are crushed and fall in the form of flakes during the crushing process (this is because some solid asphalt has a crystalline structure, and thinner flaky asphalt blocks are produced during the crushing and extrusion process), such crushed solid asphalt can easily clog the filtering structure during the processing process, causing the filtering structure in the relevant solid asphalt equipment to be unable to filter the solid asphalt normally, requiring manual shutdown for cleaning, which in turn affects the processing efficiency of the solid asphalt. Summary of the invention

[0004] The purpose of the present invention is to provide a crushing device for recovering solid asphalt. The present application solves the problems raised in the above-mentioned background technology by designing a crushing component that can grind and crush solid asphalt in a circumferentially rotating manner and drive the crushing sub-plate to move up and down and coordinate with the rotating crushing head to grind and crush solid asphalt particles up and down at the same time, thereby improving the crushing and grinding effect of solid asphalt and reducing the generation of flaky asphalt blocks.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a crushing device for recycling solid asphalt, comprising a crushing kettle and a top cover fixed to the top opening of the crushing kettle by screws, a feed port is opened on one side of the upper end surface of the top cover, a support plate is fixed in the middle of the upper end surface of the top cover, and a motor is fixed on the top of the support plate;

[0006] A crushing assembly 1 is arranged inside the crushing kettle, and the crushing assembly 1 includes a crushing head and a crushing sub-plate distributed outside the crushing head. The crushing sub-plate is in a conical structure, and the bottom is designed to be open. The outer surface of the crushing head and the inner surface of the crushing sub-plate of the conical structure are fixed with a number of convex points for grinding and crushing. The crushing sub-plate is movably connected to the inner wall of the crushing kettle, and the top of the crushing head is fixedly connected to the output shaft of the motor.

[0007] The bottom of the crushing sub-plate is designed at an inclined angle. A driving ring is arranged on the lower side of the crushing sub-plate, and protrusions are symmetrically fixed on the upper end surface of the driving ring. Connecting plates are fixed at equal distances in the inner ring of the driving ring. A transmission shaft is fixed on the lower end surface of the crushing head, and one end of the connecting plate is fixed to the transmission shaft.

[0008] Specifically, a movable groove is opened inside the crushing kettle, and a movable block is movably connected in the movable groove, a slide rail is arranged between the movable block and the movable groove, the slide rail is fixed to the inner wall of the movable groove, the movable block is slidably connected up and down in the movable groove through the slide rail, and a spring is fixed between the movable groove and the movable block.

[0009] Specifically, crushing component 2 is arranged below crushing component 1, and crushing component 2 includes a conical mesh plate which is sleeved on the outside of the transmission shaft and fixedly connected to the transmission shaft, and an annular plate is arranged on the outside of the bottom of the conical mesh plate, and the annular plate is fixed to the inner wall of the crushing kettle.

[0010] Specifically, crushing pieces 1 are fixed in an annular manner at equal distances on the outer side of the bottom of the conical mesh plate, and crushing pieces 2 are fixed in an annular manner at equal distances on the inner wall of the annular plate. Crushing pieces 1 and 2 are designed at an inclined angle, and crushing pieces 1 and 2 are made of elastic alloy metal.

[0011] Specifically, the outer surfaces of the crushing piece 1 and the crushing piece 2 are also fixed with protrusions for grinding and crushing.

[0012] Specifically, a filter plate is fixedly connected to the lower side of the interior of the crushing kettle, the bottom of the transmission shaft passes through the filter plate and extends to the lower side of the filter plate, the transmission shaft and the filter plate are rotatably connected through bearings, and a rotating joint is provided at the bottom of the transmission shaft and the outside of the motor output shaft located in the support plate.

[0013] Specifically, the rotary joint includes an outer sleeve that is sleeved on the outside of the transmission shaft, and sealed bearings are fixed between the two ends of the outer sleeve and the transmission shaft, the outside of the outer sleeve is connected and fixed with a joint pipe mouth, the outside of the transmission shaft is located in the outer sleeve and a water inlet hole is opened, and the inside of the transmission shaft is opened with a channel, the water inlet hole is connected with the channel, and a through groove connected with the inside of the outer sleeve is opened in the motor output shaft.

[0014] Specifically, a second water inlet pipe is fixedly connected to the joint pipe opening in the rotary joint at the output shaft of the motor, a water channel connected to the internal groove of the output shaft is opened in the crushing head, the water channel is designed in a spiral structure, and the bottom of the water channel is connected to the internal channel of the transmission shaft, and the external joint pipe opening of the rotary joint at the bottom of the transmission shaft is connected and fixed with a second water outlet pipe, and the second water inlet pipe and the second water outlet pipe are connected to external water pump equipment.

[0015] Specifically, fixing rods are fixed in an equidistant manner in a ring shape on the inner lower side of the conical mesh plate, and two symmetrically distributed fixing rods are respectively provided with a water inlet and a water outlet connected to the internal channel of the transmission shaft. A cooling groove with an annular structure is provided inside the bottom end of the conical mesh plate, and the liquid inlet and liquid outlet holes of the cooling groove are respectively connected to the water inlet and the water outlet.

[0016] Specifically, the connecting piece is installed at an inclined angle and has a fan-blade-like structure design.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present application designs a crushing assembly that can grind and crush solid asphalt in a circumferential rotation and drives the crushing sub-plate to move up and down to cooperate with the rotating crushing head to grind and crush solid asphalt particles up and down, thereby improving the crushing and grinding effect of solid asphalt and reducing the generation of flaky asphalt blocks;

[0019] 2. The present application further filters the solid asphalt after being crushed by the crushing component 1 by designing the crushing component 2, and further vibrates and drops the solid asphalt that fails to pass the filtration, and further grinds and crushes it, thereby improving the processing effect of the solid asphalt;

[0020] 3. This application adopts circulating water cooling to cool the crushing head in crushing component 1 and the conical mesh plate in crushing component 2, so as to avoid high-temperature hot melting adhesion of asphalt caused by long-term use of the equipment;

[0021] 4. The present application designs the connecting piece into a fan blade shape, which can further cut and crush the falling solid asphalt on the one hand, and generate downward blowing wind during the high-speed rotation of the connecting piece on the other hand, thereby preventing dust generated during the crushing of the solid asphalt from overflowing from the feed port and affecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is the overall structural view of the present invention;

[0024] Figure 2 It is a structural view of the water inlet pipe 2, the water outlet pipe 2 and the crushing kettle of the present invention;

[0025] Figure 3 It is a structural view of the crushing kettle and the filter plate of the present invention;

[0026] Figure 4 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 5 It is a structural view of the conical mesh plate and the annular plate of the present invention;

[0028] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle;

[0029] Figure 7 For the present invention Figure 4 Enlarged view of point A in the middle;

[0030] Figure 8 is a top view of the drive ring of the present invention;

[0031] Fig. 9 It is a structural view of the transmission shaft and the fixing rod of the present invention;

[0032] Fig.10 It is a structural view of the rotary joint of the present invention.

[0033] Description of reference numerals:

[0034] 1. Crushing kettle; 14. Feed inlet; 15. Filter plate; 2. Motor; 21. Support plate; 3. Rotary joint; 31. Water inlet pipe 2; 32. Water outlet pipe 2; 34. Joint pipe mouth; 35. Outer sleeve; 36. Sealed bearing; 4. Crushing component 1; 41. Crushing head; 42. Crushing sub-plate; 43. Driving ring; 44. Connecting plate; 45. Protrusion; 46. Slide rail; 47. Movable groove; 48. Movable block; 49. Spring; 5. Transmission shaft; 51. Passage; 52. Water inlet hole; 6. Crushing component 2; 61. Conical mesh plate; 62. Annular plate; 63. Crushing piece 1; 64. Crushing piece 2; 65. Fixed rod; 66. Water inlet; 67. Water outlet. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figures 1 to 10 , the present invention provides a technical solution:

[0037] A crushing device for recycling solid asphalt, comprising a crushing kettle 1 and a top cover screwed to the top opening of the crushing kettle 1, a feed port 14 is provided on one side of the upper end surface of the top cover, a support plate 21 is fixed in the middle of the upper end surface of the top cover, and a motor 2 is fixed on the top of the support plate 21;

[0038] A crushing assembly 4 is arranged inside the crushing kettle 1. The crushing assembly 4 includes a crushing head 41 and a crushing sub-plate 42 distributed outside the crushing head 41. The crushing sub-plate 42 is a conical structure with an open bottom. The outer surface of the crushing head 41 and the inner surface of the crushing sub-plate 42 of the conical structure are fixed with a plurality of convex points for grinding and crushing. The crushing sub-plate 42 is movably connected to the inner wall of the crushing kettle 1. The top of the crushing head 41 is fixedly connected to the output shaft of the motor 2.

[0039] The bottom of the crushing sub-plate 42 is designed to be inclined, a driving ring 43 is provided on the lower side of the crushing sub-plate 42, and a protrusion 45 is symmetrically fixed on the upper end surface of the driving ring 43, and connecting pieces 44 are fixed in an equidistant manner in the inner ring of the driving ring 43, a transmission shaft 5 is fixed on the lower end surface of the crushing head 41, and one end of the connecting piece 44 is fixed to the transmission shaft 5, a movable groove 47 is opened inside the crushing kettle 1, and a movable block 48 is movably connected in the movable groove 47, a slide rail 46 is provided between the movable block 48 and the movable groove 47, the slide rail 46 is fixed to the inner wall of the movable groove 47, the movable block 48 is connected to slide up and down in the movable groove 47 through the slide rail 46, and a spring 49 is fixed between the movable groove 47 and the movable block 48.

[0040] By adopting the above technical scheme, when working, the motor 2 is controlled to rotate by a controller connected to the motor 2 from the outside, driving the crushing head 41 to rotate inside the crushing sub-plate 42, and then the user feeds the solid asphalt through the feed port 14 to between the crushing head 41 and the crushing sub-plate 42 in the crushing kettle 1, and then the solid asphalt is ground and crushed in cooperation with the crushing sub-plate 42 under the high-speed rotation of the crushing head 41, and in the process of the rotation of the crushing head 41, the connecting piece 44 and the driving ring 43 are driven to rotate through the transmission shaft 5, and the protrusion 45 designed on the upper end of the driving ring 43 will squeeze the crushing sub-plate 42 to move up and down inside the crushing kettle 1 under the action of the inclined surface at the bottom of the crushing sub-plate 42, and the movable block 48, the movable groove 47 and the slide rail 46 are used to stabilize the up and down displacement, and the solid asphalt between the crushing head 41 and the crushing sub-plate 42 is applied with an up and down grinding and crushing force, so as to further ensure the crushing effect of the solid asphalt, and the crushed solid asphalt falls downward through the openings at the bottom of the crushing sub-plate 42 and the crushing head 41.

[0041] Specifically, if Figure 5 and Figure 4 As shown, a crushing component 2 6 is arranged below the crushing component 1 4, and the crushing component 2 6 includes a conical mesh plate 61 that is sleeved on the outside of the transmission shaft 5 and fixedly connected to the transmission shaft 5, an annular plate 62 is arranged on the outer side of the bottom of the conical mesh plate 61, and the annular plate 62 is fixed to the inner wall of the crushing kettle 1, and crushing pieces 1 63 are fixed in an annular shape at equal distances on the outer side of the bottom of the conical mesh plate 61, and crushing pieces 2 64 are fixed in an annular shape at equal distances on the inner wall of the annular plate 62, the crushing pieces 1 63 and the crushing pieces 2 64 are designed to be at an inclined angle, and the crushing pieces 1 63 and the crushing pieces 2 64 are made of elastic alloy metal, and the outer surfaces of the crushing pieces 1 63 and the crushing pieces 2 64 are also fixed with protrusions for grinding and crushing.

[0042] By adopting the above technical solution, the solid asphalt particles crushed by the crushing head 41 and the crushing sub-plate 42 fall downward onto the conical mesh plate 61, and then are filtered by the conical mesh plate 61. The unqualified asphalt particles (particles with a mesh size larger than that of the filter mesh plate and flaky asphalt particles) remaining on the conical mesh plate 61 are further processed by the crushing component 2 6. The processing flow is as follows: when the motor 2 drives the crushing head 41 to rotate, the transmission shaft 5 at the bottom of the crushing head 41 also rotates synchronously, and the transmission shaft 5 drives the conical mesh plate 61 sleeved on the outside to rotate. During the rotation of the conical mesh plate 61, the external crushing piece 1 63 and the crushing piece 2 64 in the annular plate 62 squeeze, rub and collide with each other to generate vibration force, and the vibration force is transmitted to the conical mesh plate 61. The mesh plate 61 itself accelerates the asphalt remaining on the surface of the conical mesh plate 61 to fall between the crushing piece 1 63 and the crushing piece 2 64, and further utilizes the crushing piece 1 63 and the crushing piece 2 64 to further squeeze and crush the asphalt particles. The processed asphalt particles fall onto the filter plate 15, are filtered and fall downward to the designated collection equipment. The design of the crushing piece 1 63 and the crushing piece 2 64 is different from the traditional grinding method in that the unqualified asphalt particles are crushed by rubbing in a simulated manner by human hands. This method has a better crushing effect, especially for the excellent crushing effect achieved for flaky asphalt. The traditional crushing method makes it easy for the flaky asphalt to fall through the crushing gap and cannot be crushed.

[0043] Specifically, if Figure 4 and Fig. 9 and Fig.10As shown, a filter plate 15 is fixedly connected to the lower inner side of the crushing kettle 1, the bottom of the transmission shaft 5 penetrates the filter plate 15 and extends to the lower side of the filter plate 15, the transmission shaft 5 and the filter plate 15 are rotatably connected through a bearing, and a rotary joint 3 is provided at the bottom of the transmission shaft 5 and the outside of the output shaft of the motor 2 located in the support plate 21, the rotary joint 3 includes an outer sleeve 35 sleeved on the outside of the transmission shaft 5, and sealed bearings 36 are fixed between the two ends of the outer sleeve 35 and the transmission shaft 5, and a joint pipe mouth 34 is fixed to the outside of the outer sleeve 35, and a water inlet hole 52 is opened on the outside of the transmission shaft 5, and a channel 51 is opened inside the transmission shaft 5, and the water inlet hole 52 is communicated with the channel 51, and a through groove communicating with the inside of the outer sleeve 35 is opened in the output shaft of the motor 2, and the output shaft of the motor 2 is at The joint pipe mouth 34 in the rotary joint 3 is fixedly connected with the water inlet pipe 2 31, and a water channel connected with the internal groove of the output shaft is opened in the crushing head 41. The water channel is designed with a spiral structure, and the bottom of the water channel is connected with the internal channel 51 of the transmission shaft 5. The external joint pipe mouth 34 of the rotary joint 3 at the bottom of the transmission shaft 5 is connected with the water outlet pipe 2 32. The water inlet pipe 2 31 and the water outlet pipe 2 32 are connected with the external water pump equipment. Fixed rods 65 are fixed at equal distances on the lower side of the inner ring of the conical mesh plate 61, and two symmetrically distributed fixed rods 65 are respectively provided with a water inlet channel 66 and a water outlet channel 67 connected with the internal channel 51 of the transmission shaft 5. A cooling groove with an annular structure is opened inside the bottom end of the conical mesh plate 61, and the liquid inlet hole and the liquid outlet hole of the cooling groove are respectively connected with the water inlet channel 66 and the water outlet channel 67.

[0044] By adopting the above technical scheme, during the operation of the crushing component 1 4 and the crushing component 2 6, the crushing head 41 and the crushing piece 1 63 at the bottom of the conical mesh plate 61 are used as active crushing components. During the long-term operation, the temperature rise problem is easy to occur in the grinding state of the solid asphalt, so that the asphalt particles are hot-melted and attached to the surface of the crushing head 41 or the crushing piece 1 63. Therefore, by designing a circulating water cooling method, the temperature is reduced to maintain its temperature under normal operating conditions. Therefore, during the operation of the equipment, the water inlet pipe 2 31 and the water outlet pipe 2 32 are connected to the external water pump equipment and the coolant storage equipment, and the water pump sucks the coolant through the water inlet pipe 2 31 and injects it into the rotary joint 3 at the output shaft of the motor 2, and the coolant enters the outer sleeve 35 through the joint pipe mouth 34. The cooling liquid then enters the through groove formed in the output shaft of the motor 2, and finally enters the water channel of the spiral structure in the crushing head 41 to cool the crushing head 41. Then the cooling liquid continues to flow downward to the inside of the channel 51 in the transmission shaft 5, and then enters the water inlet 66 in the fixing rod 65, flows through the annular cooling groove formed in the bottom end of the conical mesh plate 61, and cools the crushing piece 1 63 by heat conduction. Finally, it flows into the water channel in the transmission shaft 5 again through the water outlet 67 and then flows downward to the rotary joint 3 at the bottom of the transmission shaft 5, and finally flows out through the water outlet pipe 2 32 connected to the bottom rotary joint 3, thereby achieving the purpose of circulating cooling. Compared with the traditional air-cooled heat dissipation method, the heat dissipation effect of the present application is more excellent, and the components can be cooled in a targeted manner.

[0045] Specifically, if Figure 6 and Figure 8 As shown, the connecting piece 44 is installed at an inclined angle and has a fan-blade-like structure design.

[0046] By adopting the above-mentioned technical solution, solid asphalt will generate dust during the crushing process. During the operation, the dust is easy to overflow through the feed port 14 and cause pollution to the working environment of the equipment. Therefore, the present application designs the connecting piece 44 to be fan-shaped. During the rotation process of the connecting piece 44, the air on the upper side of the connecting piece 44 is sucked and blown downward to prevent dust from overflowing from the feed port 14. At the same time, the asphalt particles passing through can be further cut and crushed.

[0047] Working principle: During operation, the motor 2 is controlled to rotate by a controller connected to the motor 2 from the outside, driving the crushing head 41 to rotate inside the crushing sub-plate 42, and then the user delivers the solid asphalt through the feed port 14 to between the crushing head 41 and the crushing sub-plate 42 in the crushing kettle 1, and then the solid asphalt is ground and crushed in cooperation with the crushing sub-plate 42 under the action of the high-speed rotation of the crushing head 41, and in the process of the rotation of the crushing head 41, the connecting piece 44 and the driving ring 43 are driven to rotate through the transmission shaft 5, and the protrusion 45 designed on the upper end of the driving ring 43 is under the action of the inclined surface at the bottom of the crushing sub-plate 42, and the protrusion 45 will squeeze the crushing sub-plate 42 to move up and down inside the crushing kettle 1, and the movable block 48, the movable groove 47 and the slide rail 46 are used to stabilize the up and down displacement, and the solid asphalt between the crushing head 41 and the crushing sub-plate 42 is applied with an up and down grinding and crushing force, so as to further ensure the crushing effect of the solid asphalt, and the crushed solid asphalt falls downward through the openings at the bottom of the crushing sub-plate 42 and the crushing head 41.

[0048] The solid asphalt particles crushed by the crushing head 41 and the crushing sub-plate 42 fall downward onto the conical mesh plate 61, and then are filtered by the conical mesh plate 61. The unqualified asphalt particles (particles with a mesh size larger than that of the filter mesh plate and flaky asphalt particles) remaining on the conical mesh plate 61 are further processed by the crushing component 2 6. The processing flow is as follows: when the motor 2 drives the crushing head 41 to rotate, the transmission shaft 5 at the bottom of the crushing head 41 also rotates synchronously, and the transmission shaft 5 drives the conical mesh plate 61 sleeved on the outside to rotate. During the rotation of the conical mesh plate 61, the external crushing piece 1 63 and the crushing piece 2 64 in the annular plate 62 squeeze, rub and collide with each other to generate vibration force, and the vibration force is transmitted to the conical mesh plate 61 itself , accelerate the asphalt remaining on the surface of the conical mesh plate 61 to fall between the crushing piece 1 63 and the crushing piece 2 64, and further use the crushing piece 1 63 and the crushing piece 2 64 to further squeeze and crush the asphalt particles. The processed asphalt particles fall onto the filter plate 15 and fall downward to the designated collection equipment after filtration. The design of the crushing piece 1 63 and the crushing piece 2 64 is different from the traditional grinding method in that the unqualified asphalt particles are crushed by kneading in a simulated way by human hands. This method has a better crushing effect, especially for the excellent crushing effect achieved for flaky asphalt. The traditional crushing method makes it easy for the flaky asphalt to fall through the crushing gap and cannot be crushed.

[0049] During the operation of the crushing assembly 1 4 and the crushing assembly 2 6, the crushing head 41 and the crushing piece 1 63 at the bottom of the conical mesh plate 61 are used as active crushing components. During long-term operation, the temperature of the solid asphalt is easily increased in the grinding state, causing the asphalt particles to melt and adhere to the surface of the crushing head 41 or the crushing piece 1 63. Therefore, a circulating water cooling method is designed to achieve cooling and maintain the temperature under normal operating conditions. Therefore, during the operation of the equipment, the water inlet pipe 2 31 and the water outlet pipe 2 32 are connected to the external water pump equipment and the coolant storage equipment. The water pump draws the coolant through the water inlet pipe 2 31 and injects it into the rotary joint 3 at the output shaft of the motor 2. The coolant enters the outer sleeve 35 through the joint pipe mouth 34, and then enters The through groove opened by the output shaft of the motor 2 finally enters the water channel of the spiral structure in the crushing head 41 to cool the crushing head 41, and then the coolant continues to flow downward to the inside of the channel 51 in the transmission shaft 5, and then enters the water inlet 66 in the fixed rod 65, flows through the annular structure cooling groove opened inside the bottom end of the conical mesh plate 61, and cools the crushing piece 1 63 by heat conduction, and finally flows into the water channel in the transmission shaft 5 again through the water outlet 67 and then flows downward to the bottom rotary joint 3 of the transmission shaft 5, and finally flows out through the water outlet pipe 2 32 connected to the bottom rotary joint 3, thereby achieving the purpose of cyclic cooling. Compared with the traditional air-cooled heat dissipation method, the heat dissipation effect of the present application is more excellent, and the components can be cooled in a targeted manner.

[0050] Solid asphalt will generate dust during the crushing process. During the operation, the dust can easily overflow through the feed port 14 and pollute the working environment of the equipment. Therefore, the present application designs the connecting piece 44 to be fan-shaped. During the rotation of the connecting piece 44, the air on the upper side of the connecting piece 44 is sucked and blown downward to prevent dust from overflowing from the feed port 14. At the same time, the asphalt particles passing through can be further cut and crushed.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crushing device for recovering solid asphalt, comprising a crushing kettle (1) and a top cover screwed to the top opening of the crushing kettle (1), characterized in that: A feed port (14) is provided on one side of the upper end surface of the top cover, and a support plate (21) is fixed in the middle of the upper end surface of the top cover, and a motor (2) is fixed on the top of the support plate (21); A crushing assembly (4) is arranged inside the crushing kettle (1), and the crushing assembly (4) comprises a crushing head (41) and a crushing sub-plate (42) distributed outside the crushing head (41), the crushing sub-plate (42) is in a conical structure, and the bottom is designed to be open, and a plurality of protrusions for grinding and crushing are fixed on the outer surface of the crushing head (41) and the inner surface of the crushing sub-plate (42) with a conical structure, and the crushing sub-plate (42) is movably connected to the inner wall of the crushing kettle (1), and the top of the crushing head (41) is fixedly connected to the output shaft of the motor (2); The bottom of the crushing sub-plate (42) is designed to be inclined, a driving ring (43) is provided on the lower side of the crushing sub-plate (42), and a protrusion (45) is symmetrically fixed to the upper end surface of the driving ring (43), connecting pieces (44) are fixed in an equidistant manner in an annular shape inside the driving ring (43), a transmission shaft (5) is fixed to the lower end surface of the crushing head (41), and one end of the connecting piece (44) is fixed to the transmission shaft (5); A movable groove (47) is provided inside the crushing kettle (1), and a movable block (48) is movably connected inside the movable groove (47), a slide rail (46) is provided between the movable block (48) and the movable groove (47), the slide rail (46) is fixed to the inner wall of the movable groove (47), the movable block (48) is slidably connected up and down in the movable groove (47) via the slide rail (46), and a spring (49) is fixed between the movable groove (47) and the movable block (48); A second crushing component (6) is arranged below the first crushing component (4), and the second crushing component (6) comprises a conical mesh plate (61) sleeved on the outside of the transmission shaft (5) and fixedly connected to the transmission shaft (5), and an annular plate (62) is arranged on the outside of the bottom of the conical mesh plate (61), and the annular plate (62) is fixed to the inner wall of the crushing kettle (1); Crushing pieces 1 (63) are fixed in an annular manner at equal distances on the outer side of the bottom of the conical mesh plate (61), and crushing pieces 2 (64) are fixed in an annular manner at equal distances on the inner wall of the annular plate (62), wherein the crushing pieces 1 (63) and the crushing pieces 2 (64) are designed to be inclined at an angle, and the crushing pieces 1 (63) and the crushing pieces 2 (64) are made of elastic alloy metal; The outer surfaces of the crushing piece 1 (63) and the crushing piece 2 (64) are also fixed with protrusions for grinding and crushing; A filter plate (15) is fixedly connected to the lower side of the interior of the crushing kettle (1); the bottom of the transmission shaft (5) penetrates the filter plate (15) and extends to the lower side of the filter plate (15); the transmission shaft (5) and the filter plate (15) are rotatably connected via a bearing; a rotary joint (3) is provided at the bottom of the transmission shaft (5) and at the outside of the output shaft of the motor (2) located in the support plate (21); The rotary joint (3) comprises an outer sleeve (35) sleeved on the outside of the transmission shaft (5), and sealed bearings (36) are fixed between the two ends of the outer sleeve (35) and the transmission shaft (5), and a joint pipe opening (34) is fixed to the outside of the outer sleeve (35) and connected to the transmission shaft (5); a water inlet hole (52) is provided on the outside of the transmission shaft (5) and located inside the outer sleeve (35), and a channel (51) is provided inside the transmission shaft (5), and the water inlet hole (52) is connected to the channel (51); and a through groove connected to the inside of the outer sleeve (35) is provided inside the output shaft of the motor (2); The joint pipe opening (34) in the rotary joint (3) at the output shaft of the motor (2) is fixedly connected to the second water inlet pipe (31); a water channel communicating with the internal groove of the output shaft is provided in the crushing head (41); the water channel is designed in a spiral structure; the bottom of the water channel is communicated with the internal channel (51) of the transmission shaft (5); the external joint pipe opening (34) of the rotary joint (3) at the bottom of the transmission shaft (5) is connected and fixed to the second water outlet pipe (32); the second water inlet pipe (31) and the second water outlet pipe (32) are connected to external water pump equipment.

2. A crushing device for recovering solid asphalt according to claim 1, characterized in that: Fixed rods (65) are fixed at equal distances in an annular manner on the inner lower side of the conical mesh plate (61), wherein two symmetrically distributed fixed rods (65) are respectively provided with a water inlet (66) and a water outlet (67) connected to the inner channel (51) of the transmission shaft (5), and a cooling channel with an annular structure is provided inside the bottom end of the conical mesh plate (61), and a liquid inlet hole and a liquid outlet hole of the cooling channel are respectively connected to the water inlet (66) and the water outlet (67).

3. A crushing device for recovering solid asphalt according to claim 2, characterized in that: The connecting piece (44) is installed at an inclined angle and has a fan-shaped structure.

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