Construction waste crusher and method of using the same

Abstract

The present invention belongs to the technical field of construction engineering equipment, and in particular relates to a construction waste crusher, comprising: a crushing body, a feeding port is arranged on the top of the crushing body, a crushing chamber and a crushing roller are arranged in the crushing body; a feeding mechanism, the feeding mechanism comprises a conveyor belt arranged at the bottom of the crushing body; a driving mechanism, the driving mechanism is arranged on one side of the crushing body, the driving mechanism comprises a driving shaft and a driving machine for driving the crushing roller; a control unit, the control unit is arranged on the crushing body; and further comprises: a dust collecting mechanism, the dust collecting mechanism is arranged on one side of the crushing body, the dust collecting mechanism comprises a dust collecting box connected to the crushing chamber; wherein, dust generated in the crushing chamber can be collected in the dust collecting box of the dust collecting mechanism, and the present invention can effectively prevent dust from escaping into the working environment and polluting the working environment, thereby ensuring the health of the staff.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering equipment, and in particular relates to a construction waste crusher and a use method thereof. Background Art

[0002] A construction waste crusher is a device specially designed for processing construction waste, which can effectively crush, decompose and process various types of construction waste. These devices are usually used in construction sites, demolition sites, waste treatment plants and other places to process construction waste such as concrete, bricks, stones, wood, metal, etc., to reduce the volume of waste, facilitate transportation and reuse. For example, a construction waste crusher disclosed in the patent with application number CN201810262442.1 includes a fuselage, a feed port is fixedly installed on the left side of the top of the fuselage, a first discharge port is fixedly installed at the center of the bottom end of the fuselage, a second discharge port is fixedly installed at the right bottom end of the fuselage, a crushing box is fixedly installed on the top left side of the interior of the fuselage, a cam is rotatably installed on the bottom left side of the interior of the fuselage, and a screen is provided below the crushing box;

[0003] During use, the existing construction waste crusher has relatively simple functions and lacks effective dust collection and removal means, which causes the dust generated during the crushing process of construction waste to easily escape into the working environment, causing pollution to the working environment. At the same time, the dust will affect the health of the workers, and the crusher consumes a lot of energy, so it is necessary to make improvements. Summary of the invention

[0004] The purpose of the present invention is to provide a construction waste crusher and a method of using the same in order to effectively collect and remove dust generated during the construction waste crushing process in order to solve the above-mentioned technical problems.

[0005] In view of this, the present invention provides a construction waste crusher, comprising:

[0006] A crushing machine body, wherein a feeding port is arranged on the top of the crushing machine body, and a crushing chamber and a crushing roller are arranged in the crushing machine body;

[0007] A feeding mechanism, the feeding mechanism comprising a conveyor belt arranged at the bottom of the crushing machine body;

[0008] A driving mechanism, the driving mechanism is arranged on one side of the crushing machine body, and the driving mechanism comprises a driving shaft and a driving machine for driving the crushing roller;

[0009] A control unit, wherein the control unit is arranged on the crushing machine body;

[0010] Also includes:

[0011] A dust collecting mechanism, the dust collecting mechanism is arranged on one side of the crushing machine body, and the dust collecting mechanism comprises a dust collecting box connected to the crushing chamber;

[0012] The dust generated in the crushing chamber can be collected in a dust collecting box of the dust collecting mechanism.

[0013] In this technical solution, construction waste is fed into the crushing chamber from the feeding port, and the driving mechanism drives the crushing roller to operate to crush the construction waste in the crushing chamber. The crushed waste is output from the crushing chamber through the feeding mechanism. At the same time, during the crushing process, the dust collecting mechanism collects the dust generated during the crushing process into the dust collecting box, thereby preventing the dust from escaping into the working environment and polluting the working environment, thereby ensuring the health of the staff.

[0014] In the above technical solution, further, the driving mechanism also includes:

[0015] A driving box, the driving box being arranged on one side of the crushing machine body;

[0016] A movable frame, the movable frame is swingably arranged in the driving box, and the movable frame is provided with a first meshing gear and a transmission gear;

[0017] A rack, the rack being movably arranged in the drive box;

[0018] a second meshing gear, the second meshing gear being disposed at the rear end of the driving shaft;

[0019] Wherein, the driving motor is connected to the driving shaft, the movable frame can be swung by the first driving cylinder, the rack can be moved by the second driving cylinder, and the first meshing gear and the transmission gear can be respectively meshed with the second meshing gear and the rack as the movable frame swings.

[0020] In the above technical solution, further, the dust collecting mechanism also includes:

[0021] An air extraction unit, which is arranged at one side of the dust collecting box and is used to generate a negative pressure environment in the dust collecting box;

[0022] A sedimentation part, which is arranged at the bottom of the dust collecting box and includes a sedimentation bucket filled with water;

[0023] The drainage part is arranged on the top of the dust collecting box and is used to guide the airflow with dust in the crushing chamber to the sedimentation part.

[0024] In the above technical solution, further, the settling part also includes:

[0025] A stirring motor, wherein the stirring motor is arranged at the bottom of the sedimentation barrel;

[0026] A stirring shaft, the stirring shaft is rotatably arranged in the settling barrel;

[0027] The driving end of the stirring motor is connected to the stirring shaft, and the top and bottom of the sedimentation barrel are also provided with a water inlet and a sewage outlet.

[0028] In the above technical solution, further, the drainage part also includes:

[0029] A guide plate, the top of which is curved;

[0030] Wherein, the guide plate is located on one side of the connection between the crushing chamber and the dust collecting box.

[0031] In the above technical solution, further, the drainage part also includes:

[0032] A drainage box, the drainage box is arranged on a side of the drainage plate away from the crushing chamber;

[0033] A plurality of micropores, wherein the plurality of micropores are evenly distributed on the curved surface of the guide plate;

[0034] An air hole is arranged at the top of the guide plate;

[0035] A noise reduction structure, wherein the noise reduction structure is arranged on the top of the drainage box;

[0036] The drainage box can cooperate with the drainage plate to form a drainage cavity, the air holes and micropores are connected to the drainage cavity, and the bottom of the drainage box has a drainage channel extending vertically downward.

[0037] In the above technical solution, further, the ventilation unit also includes:

[0038] An exhaust duct, wherein a fan is provided in the exhaust duct;

[0039] A connecting air duct, wherein the connecting air duct has two air inlets, and both air inlets are provided with an electric-controlled damper and a flow rate sensor;

[0040] A filter frame, the filter frame is arranged at the air inlet connected to the air duct, and a filter plate is arranged in the filter frame;

[0041] A cleaning brush, which is arranged above the filter frame and can be lifted and lowered along the surface of the filter plate;

[0042] A dust sensor, wherein the dust sensor is arranged in the crushing chamber;

[0043] Wherein, the exhaust duct is communicated with the connecting duct, and the air inlet of the connecting duct is arranged in the dust collecting box.

[0044] In the above technical solution, further, the fan also includes:

[0045] A fan hub, wherein a plurality of curved guide grooves are formed on the fan hub along the circumferential direction;

[0046] A plurality of fan blades, the plurality of fan blades are evenly spaced and distributed along the circumference of the fan hub, the roots of the fan blades are provided with guide blocks that cooperate with the guide grooves, and the inner ends of the guide blocks extend to the inner side of the fan hub;

[0047] An adjusting disk, the adjusting disk is rotatably arranged in the fan hub, and a plurality of limiting parts are arranged on the adjusting disk;

[0048] An adjustment motor, the adjustment motor being arranged in the fan hub and used for driving the adjustment disk to rotate;

[0049] Among them, the guide block can slide along the direction of the guide groove, the inner end of the guide block cooperates with the limiting part, and the guide block and the limiting part are movable in the axial direction of the fan hub and are fixed in the circumferential direction. The fan hub is fixed in the exhaust duct through a support frame, and the fan hub is driven to rotate by a fan motor.

[0050] In the above technical solution, further, the present invention also discloses a method for using the above construction waste crusher, comprising the following steps:

[0051] S1 pre-start, under the control of the control unit, the first drive cylinder drives the movable frame to swing so that the first meshing gear and the transmission gear are respectively meshed with the second meshing gear and the rack, then the second drive cylinder drives the rack to move so that the transmission gear drives the first meshing gear to rotate, and the second meshing gear rotates with the first meshing gear to drive the drive shaft to rotate, thereby pre-driving the crushing roller;

[0052] S2 garbage crushing, construction waste is put into the crushing chamber from the feeding port for crushing, and the crushed garbage is output from the crushing chamber through the feeding mechanism;

[0053] S3 Dust collection and removal: During the garbage crushing process, the exhaust part of the dust collection mechanism is started. At this time, the adjustment motor drives the adjustment disk to rotate, thereby driving the fan blades to move along the guide groove direction. After the fan blades move to the minimum angle, the fan motor drives the fan hub to rotate to start the fan. Under the action of the fan, negative pressure is formed in the dust box, so that the dust in the crushing chamber is guided to the dust box through the airflow. After the airflow enters the dust box, it moves to the sedimentation barrel under the dust box under the action of the drainage part, so that it is mixed into the water for sedimentation. The dust remaining in the airflow continues to move to the connecting air duct of the exhaust part and is finally filtered on the filter plate. The clean airflow is finally discharged from the exhaust duct;

[0054] S4 automatic adjustment, through the feedback of the laser dust sensor, the control unit controls and adjusts the motor operation to adjust the angles of several fan blades according to the dust concentration in the crushing chamber. When the dust concentration increases, the fan blade angle is increased to increase the wind force generated by the fan. When the concentration continues to increase, the control unit further controls the fan motor to increase the power, thereby increasing the fan speed to increase the wind force;

[0055] S5 alternately exhausts air, and after the fan starts to run, the connected air duct opens an electric damper in an air inlet. When the flow rate sensor at the air inlet senses a decrease in flow rate, it feeds back a signal to the control unit. The control unit compares the feedback signal with the working state of the fan motor and determines whether the filter plate is blocked. When the flow rate decreases and the fan motor is in a high-power operation state, the control unit determines that the air inlet is blocked. At this time, the control unit controls the electric damper at the air inlet to close and opens the electric damper at another air inlet. At the same time, the control unit controls the cleaning brush at the blocked air inlet to move up and down along the surface of the filter plate to clean the blocked filter plate, and the cleaned dust falls into the sedimentation bucket.

[0056] In the present technical solution, during the operation of the construction waste crusher, the pre-start can effectively reduce the load on the crushing roller when it starts, thereby reducing the starting power consumption of the driving machine, preventing the driving machine from burning out and reducing energy consumption. At the same time, during the dust collection process, the power of the fan motor can be adjusted to always maintain a suitable state, further reducing the energy consumption of the construction waste crusher, and the stability of the dust collection effect can be ensured by alternating exhaust.

[0057] The beneficial effects of the present invention are:

[0058] 1. The dust collecting mechanism can effectively collect the dust in the crushing chamber, thereby preventing the dust from escaping into the working environment and polluting the working environment, thus ensuring the health of the workers;

[0059] 2. The crushing roller is pre-started by setting the driving mechanism, which reduces the starting power consumption of the driving machine, prevents the driving machine from burning out and reduces energy consumption;

[0060] 3. The fan and dust sensor can be set to keep the fan power always at a suitable state, further reducing the energy consumption of the construction waste crusher;

[0061] 4. The air duct can be connected to alternately exhaust air to prevent the filter plate from being blocked and causing dust collection failure, thus ensuring the stability of the dust collection effect;

[0062] 5. The setting of the drainage part can ensure that the dust moves to the sedimentation barrel with the air flow, thereby improving the dust collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0064] Figure 1 It is a schematic structural diagram of a specific implementation method of the present invention.

[0065] Figure 2 It is a schematic diagram of the structure of the driving part of the present invention.

[0066] Figure 3 It is a schematic diagram of the structure of the movable frame of the present invention.

[0067] Figure 4 It is a schematic diagram of the structure of the dust collecting box of the present invention.

[0068] Figure 5 It is a schematic diagram of the drainage structure of the present invention.

[0069] Figure 6 It is a schematic diagram of the structure of the exhaust part of the present invention.

[0070] Figure 7 It is a schematic diagram of the cross-sectional structure of the fan of the present invention.

[0071] Figure 8 It is a schematic diagram of the fan hub structure of the present invention.

[0072] The symbols in the figure are:

[0073] 1. Crusher body; 2. Feeding mechanism; 3. Driving mechanism; 30. Driving shaft; 31. Driving machine; 32. Driving box; 33. Movable frame; 34. First meshing gear; 35. Transmission gear; 36. Rack; 37. Second meshing gear; 38. First driving cylinder; 39. Second driving cylinder; 4. Dust collecting mechanism; 40. Dust collecting box; 5. Exhaust part; 50. Exhaust pipe; 51. Connecting air duct; 52. Electric damper; 53. Flow rate sensor ; 54. Filter frame; 55. Cleaning brush; 6. Sedimentation part; 60. Sedimentation barrel; 61. Stirring motor; 62. Stirring shaft; 7. Drainage part; 70. Drainage plate; 71. Drainage box; 72. Micropores; 73. Air holes; 74. Noise reduction structure; 75. Drainage cavity; 76. Drainage channel; 8. Fan; 80. Fan hub; 81. Curved guide groove; 82. Fan blade; 83. Guide block; 84. Adjustment disk; 85. Limiting part; 86. Adjustment motor. DETAILED DESCRIPTION

[0074] 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.

[0075] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0076] Embodiment 1:

[0077] The embodiment of the present application provides a construction waste crusher, comprising: a crushing body 1, a feeding port is arranged at the top of the crushing body 1, a crushing chamber and a crushing roller are arranged in the crushing body 1; a feeding mechanism 2, the feeding mechanism 2 comprises a conveyor belt arranged at the bottom of the crushing body 1; a driving mechanism 3, the driving mechanism 3 is arranged at one side of the crushing body 1, the driving mechanism 3 comprises a driving shaft 30 and a driving machine 31 for driving the crushing roller; a control unit, the control unit is arranged on the crushing body 1;

[0078] It also includes: a dust collecting mechanism 4, which is arranged on one side of the crushing machine body 1, and includes a dust collecting box 40 connected to the crushing chamber;

[0079] The dust generated in the crushing chamber can be collected in the dust collecting box 40 of the dust collecting mechanism 4 .

[0080] In this embodiment, construction waste is fed into the crushing chamber from the feeding port, and the driving mechanism 3 drives the crushing roller to operate so as to crush the construction waste in the crushing chamber. The crushed waste is output from the crushing chamber via the feeding mechanism 2. Meanwhile, during the crushing process, the dust collecting mechanism 4 collects the dust generated during the crushing process into the dust collecting box 40, thereby preventing the dust from escaping into the working environment and polluting the working environment, thereby ensuring the health of the staff.

[0081] Embodiment 2:

[0082] This embodiment provides a construction waste crusher, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the driving mechanism 3 also includes: a driving box 32, which is arranged on one side of the crushing machine body 1; a movable frame 33, which is swingably arranged in the driving box 32, and a first meshing gear 34 and a transmission gear 35 are arranged on the movable frame 33; a rack 36, which is movably arranged in the driving box 32; a second meshing gear 37, which is arranged at the tail end of the driving shaft 30;

[0083] Among them, the driving motor 31 is connected to the driving shaft 30, the movable frame 33 can be swung by the first driving cylinder 38, the rack 36 can be moved by the second driving cylinder 39, and the first meshing gear 34 and the transmission gear 35 can be meshed with the second meshing gear 37 and the rack 36 respectively as the movable frame 33 swings.

[0084] Moreover, the tail end of the first drive cylinder 38 is movably connected to the top of the drive box 32 in a conventional manner, the drive end of the first drive cylinder 38 is movably connected to the top of the movable frame 33 in a conventional manner, and the bottom of the movable frame 33 is movably connected to the drive box 32 in a conventional manner, such as through an axis. The second drive cylinder 39 is fixedly installed in the drive box 32, and the drive end of the second drive cylinder 39 is connected to one end of the rack 36 and can drive the rack 36 to move linearly in the horizontal direction.

[0085] In this embodiment, the construction waste crusher may stop when the crushing process is halfway through. When the construction waste crusher is started again, the garbage stuck on the crushing roller may cause the starting load of the driving machine 31 to be too large. At this time, under the control of the control unit, the first driving cylinder 38 drives the movable frame 33 to swing so that the first meshing gear 34 and the transmission gear 35 are respectively meshed with the second meshing gear 37 and the rack 36, and then the second driving cylinder 39 drives the rack 36 to move so that the transmission gear 35 drives the first meshing gear 34 to rotate, and the second meshing gear 37 rotates with the first meshing gear 34 to drive the drive shaft 30 to rotate, thereby pre-driving the crushing roller. After the crushing roller is pre-started by the driving cylinder, the movable frame 33 is reset to release the meshing, and the driving machine 31 drives the drive shaft 30 to rotate, thereby continuing to drive the crushing roller. Compared with the prior art, the present invention pre-starts the crushing roller by the driving cylinder, reduces the starting power consumption of the driving machine 31, prevents the driving machine 31 from burning out, and reduces energy consumption.

[0086] Embodiment 3:

[0087] The present embodiment provides a construction waste crusher, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the dust collecting mechanism 4 also includes: an exhaust part 5, which is arranged on one side of the dust box 40 for generating a negative pressure environment in the dust box 40; a sedimentation part 6, which is arranged at the bottom of the dust box 40, and the sedimentation part 6 includes a sedimentation bucket 60 filled with water; a drainage part 7, which is arranged at the top of the dust box 40 for guiding the airflow carrying dust in the crushing chamber to the sedimentation part 6.

[0088] The sedimentation part 6 further includes: a stirring motor 61, which is disposed at the bottom of the sedimentation barrel 60; a stirring shaft 62, which is rotatably disposed in the sedimentation barrel 60;

[0089] The driving end of the stirring motor 61 is connected to the stirring shaft 62 , and the top and bottom of the sedimentation barrel 60 are also provided with a water inlet and a sewage outlet.

[0090] In this embodiment, a negative pressure environment is generated in the dust box 40 under the action of the exhaust part 5, and the airflow in the crushing chamber enters the dust box 40 under the action of the negative pressure environment, so that the dust in the crushing chamber enters the dust box 40 together with the airflow, and the airflow moves downward to the surface of the sedimentation barrel 60 under the action of the drainage part 7 and adheres to the water surface. The stirring shaft 62 can stir the water to quickly mix the dust attached to the water surface into the water to prevent the dust from escaping again. Compared with the prior art, the present invention can effectively prevent dust from escaping into the working environment and polluting the working environment, thereby ensuring the health of the staff.

[0091] Embodiment 4:

[0092] This embodiment provides a construction waste crusher, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the drainage part 7 also includes: a drainage plate 70, the top of the drainage plate 70 is in a curved shape;

[0093] The guide plate 70 is located at one side of the connection between the crushing chamber and the dust collecting box 40 .

[0094] The drainage part 7 further includes: a drainage box 71, which is arranged on the side of the drainage plate 70 away from the crushing chamber; a plurality of micropores 72, which are evenly distributed on the curved surface of the drainage plate 70; air holes 73, which are arranged on the top of the drainage plate 70; and a noise reduction structure 74, which is arranged on the top of the drainage box 71.

[0095] The drainage box 71 can cooperate with the drainage plate 70 to form a drainage cavity 75 , the air holes 73 and the micropores 72 are both connected to the drainage cavity 75 , and the bottom of the drainage box 71 has a drainage channel 76 extending vertically downward.

[0096] The noise reduction structure 74 can be a conventional porous noise reduction body structure. The drainage box 71 is generally a rectangular box. The top of the drainage box 71 is connected to the top of the dust collecting box 40. The drainage plate 70 is fixedly installed on the side of the drainage box 71 close to the crushing chamber. The gap formed by the curved surface on the top of the drainage plate 70 and the side of the drainage box 71 can be closed by a conventional enclosure. The top of the side of the drainage box 71 close to the crushing chamber does not have a box wall, so it cooperates with the drainage plate 70 to form a drainage chamber 75, and there are several air holes 73.

[0097] In this embodiment, when the airflow enters the dust collecting box 40 from the crushing chamber, part of the airflow directly enters the drainage chamber 75 through the air hole 73, and the other part of the airflow moves along the drainage plate 70 and finally moves downward to the sedimentation barrel 60. At the same time, when the airflow moves along the drainage plate 70, part of the airflow can also enter the drainage chamber 75 through the micropores 72. Since a large amount of airflow quickly passes through the air hole 73 and directly enters the drainage chamber 75, under the action of the airflow pressure difference, a siphon effect can be generated in the drainage box 71, so that the airflow is quickly drained to the sedimentation barrel 60 and attached to the surface of the water, thereby improving the dust collection effect and collection rate. At the same time, under the action of the noise reduction structure 74 and the micropores 72, the noise generated by the airflow flow can be effectively reduced, thereby reducing noise pollution, and the impact force of the airflow on the drainage plate 70 can be effectively dispersed under the action of the air hole 73 and the micropores 72, thereby improving the stability of the drainage part 7 and preventing the drainage part 7 from being damaged under the long-term impact of the airflow.

[0098] Embodiment 5:

[0099] This embodiment provides a construction waste crusher, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the exhaust part 5 also includes: an exhaust pipe 50, in which a fan 8 is arranged; a connecting air pipe 51, in which the connecting air pipe 51 has two air inlets, in which an electric-controlled damper 52 and a flow rate sensor 53 are arranged; a filter frame 54, in which the filter frame 54 is arranged at the air inlet of the connecting air pipe 51, and a filter plate is arranged in the filter frame 54; a cleaning brush 55, in which the cleaning brush 55 is arranged above the filter frame 54, and the cleaning brush 55 can be lifted and moved along the surface of the filter plate; a dust sensor, in which the dust sensor is arranged in the crushing chamber;

[0100] The exhaust pipe 50 is connected to the connecting air pipe 51 , and the air inlet of the connecting air pipe 51 is arranged in the dust collecting box 40 .

[0101] The fan 8 further includes: a fan hub 80, on which a plurality of curved guide grooves 81 are provided along the circumferential direction; a plurality of fan blades 82, which are evenly spaced along the circumferential direction of the fan hub 80, and a guide block 83 cooperating with the guide groove is provided at the root of the fan blade 82, and the inner end of the guide block 83 extends to the inner side of the fan hub 80; an adjustment disk 84, which is rotatably arranged in the fan hub 80, and a plurality of limit parts 85 are provided on the adjustment disk 84; an adjustment motor 86, which is arranged in the fan hub 80 and is used to drive the adjustment disk 84 to rotate;

[0102] Among them, the guide block 83 can slide along the direction of the guide groove, the inner end of the guide block 83 cooperates with the limit part 85, and the guide block 83 and the limit part 85 are movable in the axial direction of the fan hub 80 and are fixed in the circumferential direction. The fan hub 80 is fixed in the exhaust duct 50 through a support frame, and the fan hub 80 is driven to rotate by the fan 8 motor.

[0103] The dust sensor, flow rate sensor 53 and electric damper 52 are all electrically connected to the control unit. The dust sensor can be a conventional laser dust sensor. The cleaning brush 55 can be driven up and down by a conventional motor, hydraulic cylinder or air cylinder, and the air duct 51 and the exhaust duct 50 are connected to form a Y-shaped exhaust part 5.

[0104] The fan 8 is driven by the fan motor 80 to rotate to start the fan 8, thereby reducing the starting power consumption of the fan 8 motor and reducing energy consumption. Under the action of the fan 8, a negative pressure is formed in the dust collecting box 40, thereby guiding the dust in the crushing chamber to the dust collecting box 40 through the airflow. After the airflow enters the dust collecting box 40, it moves to the sedimentation barrel 60 below the dust collecting box 40 under the action of the drainage section 7, thereby being mixed into the water for sedimentation. The dust remaining in the airflow continues to move to the connecting air duct 51 of the air extraction section 5 and is finally filtered on the filter plate. The clean airflow is finally discharged from the air extraction pipe 50, and the dust in the airflow is double-filtered by the filter plate and the sedimentation barrel 60, thereby improving the dust collection and filtering effect and preventing the dust from being dispersed for the second time.

[0105] During the operation of the exhaust unit 5, the control unit controls the operation of the motor 86 to adjust the angles of the blades 82 according to the dust concentration in the crushing chamber through the feedback of the laser dust sensor. When the dust concentration increases, the angle of the blades 82 is increased to increase the wind force generated by the fan 8 to ensure the dust collection effect. When the dust concentration decreases, the angle of the blades 82 is reduced to reduce the power of the fan 8 motor. When the concentration continues to increase and the angle of the blades 82 has been adjusted to the maximum value, the control unit further controls the fan 8 motor to increase the power so as to increase the speed of the fan 8 to increase the wind force to ensure the dust collection effect. Compared with the prior art, the present invention can effectively increase the wind force adjustment range of the fan 8 by adjusting the power of the fan 8 motor and the angle of the blades 82, so as to flexibly adjust the wind force according to the dust concentration in the crushing chamber, so that the power of the fan 8 motor is always maintained at a suitable state, further reducing the energy consumption of the construction waste crusher and ensuring that the dust can be effectively collected.

[0106] After the fan 8 starts to run, the connecting air duct 51 opens an electric damper in an air inlet. The flow rate sensor 53 at the air inlet senses a decrease in flow rate and feeds back a signal to the control unit. The control unit compares the feedback signal with the working state of the fan 8 motor and determines the blockage of the filter plate. At the same time, the control unit can further judge the blockage of the air inlet based on the signal fed back by the dust sensor. When the flow rate decreases and the fan 8 motor is in a high-power operation state, the control unit determines that the air inlet is blocked. At this time, the control unit controls the electric damper of the air inlet to close and opens the electric damper at another air inlet so that the other air inlet can continue to work, ensuring the stable progress of the dust collection work. At the same time, the control unit controls the cleaning brush 55 at the blocked air inlet to move up and down along the surface of the filter plate to clean the blocked filter plate. The cleaned dust falls into the sedimentation barrel 60, thereby coping with the next blockage of the air inlet for alternate extraction.

[0107] Embodiment 6:

[0108] This embodiment provides a construction waste crusher, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including the following steps:

[0109] S1 pre-start, under the control of the control unit, the first drive cylinder 38 drives the movable frame 33 to swing so that the first meshing gear 34 and the transmission gear 35 are meshed with the second meshing gear 37 and the rack 36 respectively, and then the second drive cylinder 39 drives the rack 36 to move so that the transmission gear 35 drives the first meshing gear 34 to rotate, and the second meshing gear 37 rotates with the first meshing gear 34 to drive the drive shaft 30 to rotate, thereby pre-driving the crushing roller;

[0110] S2 garbage crushing, construction waste is fed into the crushing chamber from the feeding port for crushing, and the crushed garbage is output from the crushing chamber through the feeding mechanism 2;

[0111] S3 Dust collection and removal: During the garbage crushing process, the exhaust part 5 of the dust collecting mechanism 4 is started. At this time, the adjustment motor 86 drives the adjustment disk 84 to rotate, thereby driving the fan blades 82 to move along the guide groove direction. After the fan blades 82 move to the minimum angle, the fan 8 motor drives the fan hub 80 to rotate to start the fan 8. Under the action of the fan 8, negative pressure is formed in the dust box 40, so that the dust in the crushing chamber is guided to the dust box 40 by the airflow. After the airflow enters the dust box 40, it moves to the sedimentation barrel 60 below the dust box 40 under the action of the drainage part 7, so that it is mixed into the water for sedimentation. The dust remaining in the airflow continues to move to the connecting air duct 51 of the exhaust part 5 and is finally filtered on the filter plate. The clean airflow is finally discharged from the exhaust duct 50;

[0112] S4 automatic adjustment, through the feedback of the laser dust sensor, the control unit controls the operation of the adjustment motor 86 to adjust the angles of the blades 82 according to the dust concentration in the crushing chamber. When the dust concentration increases, the angle of the blades 82 is increased to increase the wind force generated by the fan 8. When the concentration continues to increase, the control unit further controls the fan 8 motor to increase the power so as to increase the speed of the fan 8 to increase the wind force;

[0113] S5 alternates exhaust, and the connecting air duct 51 opens an electric damper in an air inlet after the fan 8 starts to run. The flow rate sensor 53 at the air inlet senses a decrease in flow rate and feeds back a signal to the control unit. The control unit compares the feedback signal with the working state of the fan 8 motor and determines the blockage of the filter plate. When the flow rate decreases and the fan 8 motor is in a high-power operation state, the control unit determines that the air inlet is blocked. At this time, the control unit controls the electric damper of the air inlet to close and opens the electric damper at another air inlet. At the same time, the control unit controls the cleaning brush 55 at the blocked air inlet to move up and down along the surface of the filter plate to clean the blocked filter plate, and the cleaned dust falls into the sedimentation barrel 60.

[0114] In this embodiment, during the operation of the construction waste crusher, the pre-start can effectively reduce the load on the crushing roller when it starts, thereby reducing the starting power consumption of the driving machine 31, preventing the driving machine 31 from burning out and reducing energy consumption. At the same time, during the dust collection process, the power of the fan 8 motor can be adjusted to always maintain a suitable state, further reducing the energy consumption of the construction waste crusher, and the stability of the dust collection effect can be ensured by alternating exhaust.

[0115] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A construction waste crusher, include: A crushing machine body (1), wherein a feeding port is arranged at the top of the crushing machine body (1), and a crushing chamber and a crushing roller are arranged in the crushing machine body (1); A material conveying mechanism (2), the material conveying mechanism (2) comprising a conveyor belt arranged at the bottom of the crushing machine body (1); A driving mechanism (3), the driving mechanism (3) being arranged on one side of the crushing machine body (1), the driving mechanism (3) comprising a driving shaft (30) for driving a crushing roller and a driving machine (31); A control unit, the control unit being arranged on the crushing machine body (1); It is characterized by further comprising: A dust collecting mechanism (4), the dust collecting mechanism (4) being arranged on one side of the crushing machine body (1), the dust collecting mechanism (4) comprising a dust collecting box (40) communicating with the crushing chamber; Wherein, the dust generated in the crushing chamber can be collected in a dust collecting box (40) of the dust collecting mechanism (4); The driving mechanism (3) further comprises: A drive box (32), wherein the drive box (32) is arranged on one side of the crushing machine body (1); A movable frame (33), the movable frame (33) being swingably disposed in the driving box (32), and the movable frame (33) being provided with a first meshing gear (34) and a transmission gear (35); a rack (36), wherein the rack (36) is movably disposed in the drive box (32); a second meshing gear (37), the second meshing gear (37) being arranged at the rear end of the driving shaft (30); The driving machine (31) is in driving connection with the driving shaft (30), the movable frame (33) can be swung by a first driving cylinder (38), the rack (36) can be moved by a second driving cylinder (39), and the first meshing gear (34) and the transmission gear (35) can respectively mesh with the second meshing gear (37) and the rack (36) as the movable frame (33) swings; The dust collecting mechanism (4) further comprises: An air extraction unit (5), the air extraction unit (5) being arranged on one side of the dust collecting box (40) and used for generating a negative pressure environment in the dust collecting box (40); A sedimentation part (6), the sedimentation part (6) being arranged at the bottom of the dust collecting box (40), the sedimentation part (6) comprising a sedimentation bucket (60) filled with water; A drainage portion (7), wherein the drainage portion (7) is arranged at the top of the dust collecting box (40) and is used to guide the airflow containing dust in the crushing chamber to the sedimentation portion (6).

2. A construction waste crusher according to claim 1, It is characterized in that The settling part (6) further comprises: a stirring motor (61), wherein the stirring motor (61) is arranged at the bottom of the sedimentation barrel (60); a stirring shaft (62), the stirring shaft (62) being rotatably disposed in the sedimentation barrel (60); The driving end of the stirring motor (61) is connected to the stirring shaft (62), and the top and bottom of the sedimentation barrel (60) are also provided with a water inlet and a sewage outlet.

3. A construction waste crusher according to claim 2, It is characterized in that The drainage portion (7) further comprises: A guide plate (70), wherein the top of the guide plate (70) is in a curved shape; The guide plate (70) is located on one side of the connection between the crushing chamber and the dust collecting box (40).

4. A construction waste crusher according to claim 3, It is characterized in that The drainage portion (7) further comprises: A drainage box (71), wherein the drainage box (71) is arranged on a side of the drainage plate (70) away from the crushing chamber; A plurality of micropores (72), wherein the plurality of micropores (72) are evenly distributed on the curved surface of the guide plate (70); An air hole (73), wherein the air hole (73) is arranged at the top end of the guide plate (70); A noise reduction structure (74), wherein the noise reduction structure (74) is arranged on the top of the drainage box (71); The drainage box (71) can cooperate with the drainage plate (70) to form a drainage cavity (75), the air holes (73) and the micropores (72) are both connected to the drainage cavity (75), and the bottom of the drainage box (71) has a drainage channel (76) extending vertically downward.

5. A construction waste crusher according to claim 4, It is characterized in that The ventilation unit (5) further comprises: An exhaust pipe (50), wherein a fan (8) is arranged in the exhaust pipe (50); A connecting air duct (51), wherein the connecting air duct (51) has two air inlets, and both air inlets are provided with an electrically controlled damper (52) and a flow rate sensor (53); A filter frame (54), the filter frame (54) being arranged at an air inlet connected to the air duct (51), and a filter plate being arranged in the filter frame (54); A cleaning brush (55), the cleaning brush (55) being arranged above the filter frame (54), and the cleaning brush (55) being movable up and down along the surface of the filter plate; A dust sensor, wherein the dust sensor is arranged in the crushing chamber; The exhaust pipe (50) is connected to the connecting air pipe (51), and the air inlet of the connecting air pipe (51) is arranged in the dust collecting box (40).

6. A construction waste crusher according to claim 5, It is characterized in that The fan (8) further comprises: A fan hub (80), wherein a plurality of curved guide grooves (81) are formed on the fan hub (80) along a circumferential direction; a plurality of fan blades (82), the plurality of fan blades (82) being evenly spaced and distributed along the circumference of the fan hub (80), the roots of the fan blades (82) being provided with guide blocks (83) cooperating with the guide grooves, the inner ends of the guide blocks (83) extending to the inner side of the fan hub (80); an adjusting disk (84), the adjusting disk (84) being rotatably disposed in the fan hub (80), and the adjusting disk (84) being provided with a plurality of limiting portions (85); an adjustment motor (86), the adjustment motor (86) being arranged in the fan hub (80) and used for driving the adjustment disk (84) to rotate; The guide block (83) can slide along the direction of the guide groove, the inner end of the guide block (83) cooperates with the limiting portion (85), and the guide block (83) and the limiting portion (85) are movable in the axial direction of the fan hub (80) and are fixed in the circumferential direction. The fan hub (80) is fixed in the exhaust pipe (50) through a support frame, and the fan hub (80) is driven to rotate by a motor of the fan (8).

7. A method for using the construction waste crusher according to claim 6, It is characterized in that The following steps are involved: S1 pre-starting, under the control of the control unit, the first driving cylinder (38) drives the movable frame (33) to swing so that the first meshing gear (34) and the transmission gear (35) mesh with the second meshing gear (37) and the rack (36) respectively, and then the second driving cylinder (39) drives the rack (36) to move so that the transmission gear (35) drives the first meshing gear (34) to rotate, and the second meshing gear (37) rotates with the first meshing gear (34) to drive the drive shaft (30) to rotate, thereby pre-driving the crushing roller; S2 garbage crushing: construction waste is fed into the crushing chamber from the feeding port for crushing, and the crushed waste is output from the crushing chamber via the feeding mechanism (2); S3 Dust collection and removal: During the garbage crushing process, the exhaust part (5) of the dust collection mechanism (4) is started. At this time, the adjustment motor (86) drives the adjustment disk (84) to rotate, thereby driving the fan blade (82) to move along the guide groove direction. After the fan blade (82) moves to the minimum angle, the fan (8) motor drives the fan hub (80) to rotate to start the fan (8). Under the action of the fan (8), a negative pressure is formed in the dust box (40), thereby guiding the dust in the crushing chamber to the dust box (40) through the airflow. After the airflow enters the dust box (40), it moves to the sedimentation barrel (60) below the dust box (40) under the action of the drainage part (7), thereby being mixed into the water for sedimentation. The dust remaining in the airflow continues to move to the connecting air duct (51) of the exhaust part (5) and is finally filtered on the filter plate. The clean airflow is finally discharged from the exhaust duct (50); S4 automatic adjustment, through the feedback of the laser dust sensor, the control unit controls the operation of the adjustment motor (86) to adjust the angles of the plurality of fan blades (82) according to the dust concentration in the crushing chamber, and when the dust concentration increases, the angle of the fan blades (82) is increased to increase the wind force generated by the fan (8), and when the concentration continues to increase, the control unit further controls the fan (8) motor to increase the power so as to increase the speed of the fan (8) to increase the wind force; S5 alternately exhausts air, and after the fan (8) starts to run, the air duct (51) is connected to open the electric damper in one of the air inlets. When the flow rate sensor (53) at the air inlet senses a decrease in flow rate, it feeds back a signal to the control unit. The control unit compares the feedback signal with the working state of the fan (8) motor and determines whether the filter plate is blocked. When the flow rate decreases and the fan (8) motor is in a high-power operation state, the control unit determines that the air inlet is blocked. At this time, the control unit controls the electric damper of the air inlet to close and opens the electric damper at another air inlet. At the same time, the control unit controls the cleaning brush (55) at the blocked air inlet to move up and down along the surface of the filter plate to clean the blocked filter plate, and the cleaned dust falls downward into the sedimentation bucket (60).

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