CN213142739U - Milling machine dust pelletizing system and milling machine - Google Patents

Abstract

The utility model provides a milling machine dust pelletizing system and milling machine. Wherein, milling machine dust pelletizing system includes: one end of the first dust removal pipeline is communicated with the space above a first-level material conveying machine of the milling machine; the second dust removal pipeline is arranged on the secondary material conveyer of the milling machine, and one end of the second dust removal pipeline, which is far away from the first dust removal pipeline, is communicated with a discharge hole of the secondary material conveyer; the dust collection assembly is arranged on the secondary material conveyor, a first end of the dust collection assembly is connected with the first dust removal pipeline, a second end of the dust collection assembly is connected with the second dust removal pipeline, and dust is sucked into the second dust removal pipeline through the first dust removal pipeline by the dust collection assembly; the dust collection assembly is provided with a plurality of dust collection branch pipes which respectively extend to two sides of a receiving hopper of the secondary material conveyor so as to suck dust on two sides of the receiving hopper into the second dust removal pipeline. The technical scheme of the utility model, can effectively alleviate the ash leakage phenomenon that connects hopper department in the transportation process, dust removal effect and dust collection efficiency are better, and simple structure, easily realize.

Description

Milling machine dust pelletizing system and milling machine

Technical Field

The application relates to the technical field of milling machine dust removal, in particular to a milling machine dust removal system and a milling machine.

Background

Milling machines are one of the common road construction machines used for the renovation of road surfaces. The milling drum of the milling machine can generate a large amount of dust during the milling operation and when waste falls into the first-level material conveying machine, so that dust pollution is caused, adverse effects are caused to the environment of a construction site, and the health of site construction personnel is not facilitated. The scheme of providing a dust pelletizing system for milling machine among the prior art, inhale the dust of one-level defeated material machine top in the defeated material machine of second grade through the draught fan to outwards discharge through the discharge gate of the defeated material machine of second grade, realize removing dust. However, in the above scheme, the second-stage material conveyor is provided with a receiving hopper for receiving the waste material conveyed by the first-stage material conveyor, and during the working process of the milling machine, dust leakage is easily caused at two sides of the receiving hopper, so that dust is diffused outwards, dust pollution on a construction site is caused, and the health of construction personnel is influenced.

SUMMERY OF THE UTILITY MODEL

According to an embodiment of the present invention, it is intended to improve at least one of technical problems existing in the prior art or the related art.

To this end, according to the utility model discloses an embodiment, an aim at provides a milling machine dust pelletizing system.

According to an embodiment of the utility model, another aim at provides a milling machine.

In order to achieve the above object, according to an embodiment of the first aspect of the present invention, there is provided a milling machine dust removal system, including: one end of the first dust removal pipeline is communicated with the space above the first-stage material conveying machine of the milling machine, and the other end of the first dust removal pipeline extends towards the direction of the second-stage material conveying machine of the milling machine; the second dust removal pipeline is arranged on the second-stage material conveyer of the milling machine and extends along the length direction of the second-stage material conveyer, and one end, far away from the first dust removal pipeline, of the second dust removal pipeline is communicated with a discharge hole of the second-stage material conveyer; the dust collection assembly is arranged on the secondary material conveyer, the first end of the dust collection assembly is connected with one end, far away from the primary material conveyer, of the first dust removal pipeline, the second end of the dust collection assembly is connected with one end, close to the primary material conveyer, of the second dust removal pipeline, and the dust collection assembly is used for sucking dust above the primary material conveyer into the second dust removal pipeline through the first dust removal pipeline so that the dust is discharged from the discharge hole; the dust collection assembly is provided with a plurality of dust collection branch pipes which extend to two sides of a receiving hopper of the secondary material conveyor respectively, and dust on two sides of the receiving hopper can be sucked into the second dust removal pipeline through the dust collection branch pipes by the dust collection assembly.

According to the utility model discloses the embodiment of first aspect, milling machine dust pelletizing system includes first dust removal pipeline, second dust removal pipeline and dust absorption subassembly. The first dust removal pipeline is communicated with the upper space of the first-stage material conveyor of the milling machine to provide a channel for dust in the upper space of the first-stage material conveyor, so that the dust flows to a specified position to be discharged conveniently. The second dust removal pipeline is arranged on a second-stage material conveying machine of the milling machine and used for receiving dust in the first dust removal pipeline; the second dust removal pipeline is communicated with a discharge port of the second-stage material conveyor, so that dust in the second dust removal pipeline can be discharged outwards from the discharge port of the second-stage material conveyor, and is conveyed to the transport vehicle along with waste materials in the second-stage material conveyor and transported away from a construction site. The dust absorption subassembly is located the defeated material machine of second grade, the first end through setting up the dust absorption subassembly is connected with the one end that the defeated material machine of one-level was kept away from to first dust removal pipeline, the second end of dust absorption subassembly is connected with the one end that the second dust removal pipeline is close to the defeated material machine of one-level, the dust absorption subassembly can make and form the atmospheric pressure difference between first end and the second end, in order to inhale the second dust removal pipeline with the dust in the top space of the defeated material machine of one-level through first dust removal pipeline, and then make the dust outwards discharge by the discharge gate of the. Wherein, through be equipped with a plurality of dust absorption branch pipes on dust absorption subassembly, and a plurality of dust absorption branch pipes extend to the both sides that connect the hopper of second grade feeding machine respectively for will connect the dust of hopper both sides to inhale in the second dust removal pipeline, in order to prevent to connect hopper both sides outwards to leak grey.

Milling machine dust pelletizing system in this scheme can inhale the second dust removal pipeline with the dust of the top space of the defeated material machine of one-level and the dust of the defeated material machine of second grade that connects the hopper both sides, can produce and carry the link to the waste material of milling machine and remove dust, has effectively alleviated the ash leakage phenomenon that connects hopper department among the waste material transportation process, and dust removal effect and dust collection efficiency are better. In addition, milling machine dust pelletizing system in this scheme simple structure, the repacking degree of difficulty is lower with the repacking cost, easily realizes.

In addition, according to the utility model discloses the milling machine dust pelletizing system in the above-mentioned technical scheme that the embodiment provided can also have following additional technical characteristics:

in the above technical solution, the dust collection assembly includes: the fan is arranged on the secondary material conveyer and is positioned between the first dust removal pipeline and the second dust removal pipeline, and an air inlet of the fan is communicated with one end, far away from the primary material conveyer, of the first dust removal pipeline; the venturi tube is arranged between the fan and the second dust removal pipeline, the inlet end of the venturi tube is communicated with the air outlet of the fan, and the outlet end of the venturi tube is communicated with one end, close to the first-stage material conveyor, of the second dust removal pipeline; the dust collection branch pipes are arranged on the outer side of the Venturi pipe, one end of each dust collection branch pipe is communicated with the position with the minimum diameter of the Venturi pipe, and the dust collection branch pipes extend to the two sides of the receiving hopper respectively; the venturi tube enables dust in the space above the first-stage material conveyor and dust on two sides of the receiving hopper to be sucked into the second dust removal pipeline through air pressure difference at two ends.

In the technical scheme, the dust collection assembly comprises a fan, a Venturi tube and a plurality of dust collection branch tubes. The fan and the venturi tube are sequentially arranged between the first dust removal pipeline and the second dust removal pipeline, the air inlet of the fan is communicated with the first dust removal pipeline, the air outlet of the fan is communicated with the inlet end of the venturi tube, and the outlet end of the venturi tube is communicated with the second dust removal pipeline; the fan drives the airflow of the first dust removal pipeline to move towards the second dust removal pipeline, so that dust in the upper space of the primary material conveyor is sucked into the first dust removal pipeline and then moves towards the second dust removal pipeline along with the airflow. Through being connected with a plurality of dust absorption branch pipes in venturi's the minimum department of diameter, and a plurality of dust absorption branch pipes extend to the both sides that connect the hopper of second grade feeding machine respectively, when the air current in first dust removal pipeline passes venturi's the minimum department of diameter to second dust removal pipeline flow, utilize venturi effect, produce the atmospheric pressure difference in making the dust absorption branch pipe, and then produce suction, in order will connect the dust of hopper both sides to inhale the dust absorption branch pipe, and then pass venturi and flow in the second dust removal pipeline, so that outwards discharge. Wherein, fan and first dust removal pipeline lug connection, the drive effect to the air current in the first dust removal pipeline is more obvious.

It should be noted that the venturi effect refers to the phenomenon of increased flow velocity accompanied by a pressure drop when the fluid passes through a reduced flow cross section during a restricted flow. Generally, the venturi effect is that a low pressure is generated near a fluid flowing at a high speed to generate an adsorption effect, and the venturi tube is manufactured by using the effect.

In the above technical solution, the dust collection assembly includes: the Venturi tube is arranged on the secondary material conveyer and is positioned between the first dust removal pipeline and the second dust removal pipeline, and the inlet end of the Venturi tube is communicated with one end, far away from the primary material conveyer, of the first dust removal pipeline; the fan is arranged between the Venturi tube and the second dust removal pipeline, an air inlet of the fan is communicated with the outlet end of the Venturi tube, and an air outlet of the fan is communicated with one end, close to the first-stage material conveyor, of the second dust removal pipeline; the dust collection branch pipes are arranged on the outer side of the Venturi pipe, one end of each dust collection branch pipe is communicated with the position with the minimum diameter of the Venturi pipe, and the dust collection branch pipes extend to the two sides of the receiving hopper respectively; the venturi tube enables dust in the space above the first-stage material conveyor and dust on two sides of the receiving hopper to be sucked into the second dust removal pipeline through air pressure difference at two ends.

In the technical scheme, the dust collection assembly comprises a fan, a Venturi tube and a plurality of dust collection branch tubes. Venturi tube and fan set gradually in the position between first dust removal pipeline and the second dust removal pipeline, Venturi tube's entry end and first dust removal pipeline intercommunication, Venturi tube's exit end and the air intake intercommunication of fan, the air outlet and the second dust removal pipeline intercommunication of fan. The minimum diameter of the Venturi tube is connected with a plurality of dust absorption branch pipes, the dust absorption branch pipes extend to two sides of a receiving hopper of the secondary material conveyor respectively, and when airflow in the first dust removal pipeline passes through the minimum diameter of the Venturi tube and flows to the second dust removal pipeline, the Venturi effect is utilized to generate air pressure difference in the dust absorption branch pipes, so that suction force is generated, and dust on two sides of the receiving hopper is sucked into the dust absorption branch pipes. The fan is located venturi's exit end, drives the interior air current of first dust removal pipeline and dust absorption branch pipe through the fan and moves to second dust removal pipeline to further increase the atmospheric pressure difference at venturi both ends, the reinforcing is to the adsorption of dust, and then will be located the dust in the top space of one-level conveying machine and the dust that connects the hopper both sides inhales second dust removal pipeline, so that discharge to the transport vechicle through the discharge gate.

It should be noted that the venturi effect refers to the phenomenon of increased flow velocity accompanied by a pressure drop when the fluid passes through a reduced flow cross section during a restricted flow. Generally, the venturi effect is that a low pressure is generated near a fluid flowing at a high speed to generate an adsorption effect, and the venturi tube is manufactured by using the effect.

In the above technical solution, the venturi tube includes: an inlet end and an outlet end; a throat disposed between the inlet end and the outlet end; the contraction section is arranged between the inlet end and the throat part, and the diameter of the contraction section is gradually reduced from the outlet end to the direction close to the throat part; the expanding section is arranged between the throat part and the outlet end, and the diameter of the expanding section is gradually increased from the throat part to the direction close to the outlet end.

In this technical scheme, venturi specifically includes entry end, convergent section, throat, expansion section and exit end, and convergent section, throat and expansion section connect gradually to the exit end by the entry end. Wherein, the diameter of contraction section is reduced to the direction that is close to the throat by the exit end gradually, the diameter of expansion section is crescent to the direction that is close to the exit end by the throat, make the throat that is located the middle part become venturi's diameter minimum department, when the air current flows to the exit end by the entry end, it makes the air current velocity of flow accelerate to flow cross sectional reduction, utilize the venturi effect to make throat both ends produce the air pressure difference, and then produce suction, and will connect the dust of hopper both sides to inhale the second dust removal pipeline through dust absorption branch pipe, so that discharge gate is discharged to the transport vechicle.

In the technical scheme, the part of the dust collection branch pipe, which is close to the material receiving hopper, is provided with a plurality of dust collection holes, and the dust collection holes are arranged at intervals along the extension direction of the dust collection branch pipe.

In the technical scheme, a plurality of dust suction holes are formed in the part, close to the material receiving hopper, of the dust suction branch pipe and used for adsorbing dust. Wherein, a plurality of dust absorption holes set up along the extending direction interval of dust absorption branch pipe to increase dust absorption branch pipe's absorption scope, in order to adsorb more dust, further reduce by the dust volume that connects hopper both sides to the outside hourglass.

In the technical scheme, the part of the dust suction branch pipe, which is provided with the dust suction hole, inclines to one side far away from the material receiving hopper so as to be matched with the shape of the material receiving hopper.

In this technical scheme, the part through setting up the dust absorption branch pipe and being equipped with the dust absorption hole inclines to the one side of keeping away from and connecing the hopper to keep suitable distance with connecing the hopper, prevent to take place to interfere with connecing the hopper, is convenient for adsorb the dust simultaneously. It can be understood that the width of the part of the receiving hopper close to the first-level material conveyer is larger, so that the receiving hopper can receive the waste materials conveyed by the first-level material conveyer; the width of the end, far away from the first-level material conveyor, of the material receiving hopper is gradually reduced so as to be conveniently connected with the main body of the second-level material conveyor, and the extension direction of the dust collection branch pipe is matched with the shape of the material receiving hopper, so that the dust collection hopper is beneficial to keeping the adsorption effect on dust on two sides of the material receiving hopper.

In the technical scheme, the number of the dust absorption branch pipes is two, and the two dust absorption branch pipes are respectively arranged at two sides of the Venturi pipe and respectively extend to two sides of the material receiving hopper.

In this technical scheme, be two through the quantity of injecing the dust absorption branch pipe, venturi's both sides are located respectively to two dust absorption branch pipes to extend to the both sides that connect the hopper respectively, can realize the effect in order adsorbing the dust through two dust absorption branch pipes, be favorable to simplifying dust absorption assembly's structure, reduce the processing degree of difficulty.

In the above technical solution, the milling machine dust removal system further includes: the detector is arranged above the first-stage material conveyer and used for detecting the dust concentration; the controller is arranged on the milling machine, electrically connected with the detector and the fan, and used for adjusting the air volume of the fan according to the dust concentration detected by the detector.

In this technical scheme, milling machine dust pelletizing system still includes detector and controller. The detector is arranged above the first-stage material conveyor to detect the dust concentration in the space above the first-stage material conveyor. The controller is electrically connected with the detector and the fan, so that the controller can adjust the air volume of the fan according to the dust concentration detected by the detector, namely, when the dust concentration is higher, the air volume of the fan is increased; when the dust concentration is smaller, the air quantity of the fan is reduced to improve the dust removal efficiency, the dust removal effect is better, and meanwhile, the energy is saved.

In the above technical solution, the milling machine dust removal system further includes: and the spraying mechanism is arranged in the first dust removal pipeline and/or the second dust removal pipeline and is used for spraying atomized water to the dust.

In the technical scheme, the spraying mechanism is arranged in the first dust removal pipeline and/or the second dust removal pipeline, so that atomized water is sprayed to dust through the spraying mechanism, the dust is adsorbed, the dust particles in a floating state in the air are reduced, and the dust removal effect is further improved.

According to the utility model discloses an embodiment of second aspect provides a milling machine, include: milling machine body; the milling drum is arranged at the bottom of the milling machine body and is used for milling operation; the first-level material conveying machine is arranged in front of the milling drum along the length direction of the milling machine body so as to collect and convey waste materials generated by milling operation of the milling drum; the second-stage material conveyer is arranged in front of the first-stage material conveyer along the length direction of the milling machine body, a receiving hopper is arranged at one end, close to the first-stage material conveyer, of the second-stage material conveyer and used for collecting waste materials in the first-stage material conveyer, and a discharge hole is formed at one end, far away from the first-stage material conveyer, of the second-stage material conveyer and used for discharging the waste materials outwards; as in the milling machine dust removal system in the embodiment of the first aspect, the first dust removal pipeline of the milling machine dust removal system is communicated with the upper space of the primary material conveyor, the second dust removal pipeline of the milling machine dust removal system is communicated with the discharge port, and the dust removal assembly of the milling machine dust removal system is used for sucking dust in the upper space of the primary material conveyor and dust on two sides of the receiving hopper into the second dust removal pipeline, so that the dust is discharged outwards from the discharge port.

According to the utility model discloses an embodiment of second aspect, the milling machine includes the milling machine automobile body, mills the milling drum, the defeated material machine of one-level, the defeated material machine of second grade and the milling machine dust pelletizing system in the embodiment of above-mentioned first aspect. The milling drum is used for milling operation on the road surface so as to realize road surface renovation. In the length direction of the milling machine vehicle body, the first-level material conveying machine is arranged in front of the milling drum, the second-level material conveying machine is arranged in front of the first-level material conveying machine, and a material receiving hopper is arranged at one end, close to the first-level material conveying machine, of the second-level material conveying machine. Receive through the defeated material machine of one-level and mill the waste material that the operation produced of milling and planing the drum to carry to the defeated material machine of second grade connect the hopper in, and then carry the waste material to discharge gate department through the defeated material machine of second grade, and discharge to the transport vechicle that is used for transporting the waste material.

A first dust removal pipeline in the milling machine dust removal system is communicated with the space above the primary material conveying machine, a second dust removal pipeline and a dust collection assembly in the milling machine dust removal system are arranged on the secondary material conveying machine, and the second dust removal pipeline is communicated with a discharge hole of the secondary material conveying machine; the dust collection assembly for connecting the first dust removal pipeline and the second dust removal pipeline is provided with a plurality of dust collection branch pipes, the dust collection branch pipes extend to the two sides of the receiving hopper, air pressure difference is generated between the first dust removal pipeline and the second dust removal pipeline and between the dust collection branch pipes and the second dust removal pipeline through the dust collection assembly, dust in the upper space of the first-stage material conveyor and dust on the two sides of the receiving hopper are sucked into the second dust removal pipeline, and then the dust is discharged into the transport vehicle through a discharge port of the second-stage material conveyor.

In addition, the milling machine in this scheme also has all the beneficial effects of the milling machine dust pelletizing system in any embodiment of the first aspect described above, and details are not repeated here.

Additional aspects and advantages of the embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a partial schematic view of a milling machine according to an embodiment of the invention;

fig. 2 shows a partial schematic view of a milling machine according to an embodiment of the invention;

fig. 3 shows a partial schematic view of a milling machine according to an embodiment of the invention;

FIG. 4 illustrates a schematic structural view of a venturi and a dust extraction branch according to an embodiment of the present invention;

fig. 5 shows a partial schematic view of a milling machine according to an embodiment of the invention;

fig. 6 shows a partial schematic view of a milling machine according to an embodiment of the present disclosure;

fig. 7 shows a partial schematic view of a milling machine according to an embodiment of the invention.

The correspondence between reference numerals and components in fig. 1 to 7 is as follows:

1 milling machine dust removal system, 11 first dust removal pipeline, 12 second dust removal pipeline, 13 dust collection assembly, 131 fan, 1311 air inlet, 1312 air outlet, 132 venturi tube, 1321 inlet end, 1322 contraction section, 1323 throat, 1324 expansion section, 1325 outlet end, 133 dust collection branch pipe, 1331 dust collection hole, 14 detector, 15 controller, 16 spraying mechanism, 2 milling machine, 21 milling machine body, 22 milling drum, 23 primary material conveyor, 24 secondary material conveyor, 241 material receiving hopper and 242 material outlet.

Wherein the direction of arrows in fig. 1, 5, 6 and 7 indicate the direction of movement of the air flow.

Detailed Description

In order to make the above objects, features and advantages according to the embodiments of the present invention more clearly understood, embodiments according to the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments according to the invention, however, embodiments according to the invention may be practiced in other ways than those described herein, and therefore the scope of protection of this application is not limited by the specific embodiments disclosed below.

Milling machine dust removal systems and milling machines in accordance with some embodiments of the present disclosure are described below with reference to fig. 1-7.

Example one

The embodiment provides a milling machine dust removal system 1, as shown in fig. 1, including a first dust removal duct 11, a second dust removal duct 12, and a dust collection assembly 13.

The first dust removal pipeline 11 and the second dust removal pipeline 12 are respectively arranged corresponding to a first-stage material conveyor 23 and a second-stage material conveyor 24 of the milling machine 2. The first dust removal duct 11 is communicated with the upper space of the first conveyor 23 of the milling machine 2 to provide a passage for adsorbing dust in the upper space of the first conveyor 23. The second dust removal duct 12 is provided on the second conveyor 24 of the milling machine 2 for receiving and directing the dust-laden air flow for discharge to the outside. The second dust removal pipe 12 is connected to the discharge port 242 of the second conveyor 24, so that the dust in the second dust removal pipe 12 can be discharged from the discharge port 242 of the second conveyor 24, and then transported to a transport vehicle along with the waste materials in the second conveyor 24, and transported away from the construction site.

The dust suction assembly 13 is arranged on the secondary conveyor 24 and is positioned between the first dust removal pipeline 11 and the second dust removal pipeline 12. The first end of the dust collection assembly 13 is connected to the end of the first dust removal pipe 11 far away from the first material conveyor 23, the second end of the dust collection assembly 13 is connected to the end of the second dust removal pipe 12 near the first material conveyor 23, when the milling machine 2 performs milling operation, the dust collection assembly 13 can make the first end and the second end form an air pressure difference, so that dust in the space above the first material conveyor 23 is sucked into the second dust removal pipe 12 through the first dust removal pipe 11, and the dust is discharged from the discharge port 242 of the second material conveyor 24. Wherein, the dust collection assembly 13 is provided with a plurality of dust collection branch pipes 133, the plurality of dust collection branch pipes 133 extend to two sides of the receiving hopper 241 of the second-stage conveyor 24 respectively, when the first-stage conveyor 23 conveys waste materials to the second-stage conveyor 24, dust is easily generated on two sides of the receiving hopper 241, the dust collection assembly 13 uses the air pressure difference in the dust collection branch pipes 133 to suck the dust on two sides of the receiving hopper 241 into the second dust removal pipeline 12, and then the dust is discharged outwards through the discharge port 242, so as to prevent dust leakage on two sides of the receiving hopper 241.

The milling machine dust removal system 1 in this embodiment can suck the dust in the upper space of the first-level material conveyor 23 and the dust on the two sides of the receiving hopper 241 of the second-level material conveyor 24 into the second dust removal pipeline 12, so as to remove dust in the waste material production and conveying links of the milling machine 2, effectively alleviate the dust leakage phenomenon at the receiving hopper 241 in the waste material conveying process, improve the dust removal efficiency, and achieve better dust removal effect. Meanwhile, the milling machine dust removal system 1 in the embodiment is simple in structure, only partial structure of the existing milling machine 2 is modified, modification difficulty and modification cost are low, and the implementation is easy.

Example two

The embodiment provides a milling machine dust removal system 1, and is further improved on the basis of the first embodiment.

As shown in fig. 1 and 2, the suction assembly 13 includes a fan 131, a venturi tube 132, and two suction branches 133. The fan 131 and the venturi tube 132 are sequentially disposed at a position between the first dust removal duct 11 and the second dust removal duct 12; an air inlet 1311 of the fan 131 is communicated with the first dust removal pipeline 11, and an air outlet 1312 of the fan 131 is communicated with an inlet end 1321 of the venturi tube 132; the outlet end 1325 of the venturi 132 communicates with the second dust removal duct 12. When the fan 131 works, it can generate an airflow movement and drive the airflow of the first dust removal pipeline 11 to move towards the second dust removal pipeline 12, so as to suck the dust in the space above the primary material conveyor 23 into the first dust removal pipeline 11, and further move towards the second dust removal pipeline 12 along with the airflow.

Two dust suction branch pipes 133 are provided at both sides of the venturi tube 132 and extend in the length direction of the venturi tube 132. The two branch dust suction pipes 133 are connected to the position where the diameter of the venturi tube 132 is the smallest, and the two branch dust suction pipes 133 extend to the two sides of the receiving hopper 241 of the secondary material conveyer 24 respectively. When the airflow in the first dust removing duct 11 flows through the position with the smallest diameter of the venturi tube 132 to the second dust removing duct 12, a venturi effect is generated, so that an air pressure difference is generated in the dust suction branch pipe 133, and further, a suction force is generated, so that dust on both sides of the material receiving hopper 241 is sucked into the dust suction branch pipe 133, further flows into the second dust removing duct 12 through the venturi tube 132, and finally is discharged to the outside through the discharge port 242. Wherein, fan 131 and first dust removal pipeline 11 lug connection, the drive effect to the air current in first dust removal pipeline 11 is more obvious.

It should be noted that the venturi effect refers to the phenomenon of increased flow velocity accompanied by a pressure drop when the fluid passes through a reduced flow cross section during a restricted flow. In general, the venturi effect is that a low pressure is generated near a fluid flowing at a high speed, thereby generating an adsorption effect, and the venturi tube 132 is manufactured by using the effect.

In addition, the two dust suction branch pipes 133 can simplify the structure and reduce the processing difficulty, but the number of the dust suction branch pipes 133 is not limited to two, and may be other numbers larger than two.

EXAMPLE III

The embodiment provides a milling machine dust removal system 1, and is further improved on the basis of the first embodiment.

As shown in fig. 1 and 3, the suction assembly 13 includes a fan 131, a venturi tube 132, and two suction branches 133. The venturi tube 132 and the fan 131 are sequentially disposed at a position between the first dust removal duct 11 and the second dust removal duct 12; the inlet end 1321 of the venturi 132 is communicated with the first dust removal pipeline 11, and the outlet end 1325 of the venturi 132 is communicated with the air inlet 1311 of the fan 131; the air outlet 1312 of the fan 131 communicates with the second dust removal duct 12. Two dust suction branch pipes 133 are provided at both sides of the venturi tube 132 and extend in the length direction of the venturi tube 132. The two branch dust suction pipes 133 are connected to the position where the diameter of the venturi tube 132 is the smallest, and the two branch dust suction pipes 133 extend to the two sides of the receiving hopper 241 of the secondary material conveyer 24 respectively. When the airflow in the first dust removing duct 11 flows through the minimum diameter of the venturi tube 132 to the second dust removing duct 12, a venturi effect is generated, so that a pressure difference is generated in the dust suction branch pipe 133, and a suction force is generated, so that dust on both sides of the receiving hopper 241 is sucked into the dust suction branch pipe 133.

The fan 131 is located at the outlet end 1325 of the venturi tube 132, and the air flow in the first dust removing pipeline 11 and the dust collecting branch pipe 133 is driven by the fan 131 to move towards the second dust removing pipeline 12, so as to further increase the air pressure difference at the two ends of the venturi tube 132, enhance the adsorption effect on dust, further suck the dust in the upper space of the first-level material conveyor 23 and the dust at the two sides of the material receiving hopper 241 into the second dust removing pipeline 12, and facilitate the discharge to the transport vehicle through the material outlet 242.

It should be noted that the venturi effect refers to the phenomenon of increased flow velocity accompanied by a pressure drop when the fluid passes through a reduced flow cross section during a restricted flow. In general, the venturi effect is that a low pressure is generated near a fluid flowing at a high speed, thereby generating an adsorption effect, and the venturi tube 132 is manufactured by using the effect.

In addition, the two dust suction branch pipes 133 can simplify the structure and reduce the processing difficulty, but the number of the dust suction branch pipes 133 is not limited to two, and may be other numbers larger than two.

Example four

The embodiment provides a milling machine dust removal system 1, and further improvement is made on the basis of the second embodiment.

As shown in fig. 1, 2 and 4, the venturi 132 specifically includes an inlet end 1321, a convergent section 1322, a throat 1323, an expansion section 1324 and an outlet end 1325, and the convergent section 1322, the throat 1323 and the expansion section 1324 are sequentially connected from the inlet end 1321 to the outlet end 1325 in the length direction of the venturi 132. Wherein the diameter of the converging section 1322 decreases from the outlet end 1325 toward the throat 1323; the diameter of the expanded section 1324 gradually increases from the throat 1323 toward the outlet end 1325; the intermediate throat 1323 is where the diameter of the venturi 132 is smallest.

When the airflow flows from the inlet end 1321 to the outlet end 1325 through the throat 1323, the flow velocity of the airflow is accelerated due to the reduction of the flow cross section, and the pressure difference is generated at the two ends of the throat 1323 by the venturi effect, so that suction force is generated, and the dust at the two sides of the receiving hopper 241 is sucked into the second dust removing pipeline 12 through the dust suction branch pipe 133 and then discharged to the transport vehicle through the discharge port 242.

Further, a plurality of dust suction holes 1331 are formed in a portion of the dust suction branch pipe 133 close to the material receiving hopper 241, and the dust suction holes 1331 are spaced apart from each other along the extending direction of the dust suction branch pipe 133, so as to increase the suction range of the dust suction branch pipe 133 and further reduce the amount of dust leaking from both sides of the material receiving hopper 241 to the outside.

Further, a portion of the dust suction branch pipe 133 where the dust suction hole 1331 is formed is inclined to a side away from the material receiving hopper 241 to be adapted to the shape of the material receiving hopper 241, so that the dust suction branch pipe 133 and the material receiving hopper 241 maintain a proper distance at a position where the width of the material receiving hopper 241 is changed, interference with the material receiving hopper 241 is prevented, and dust is easily sucked.

It should be noted that the structure of the venturi tube 132 and the dust suction branch pipe 133 in the present embodiment is also applicable to the milling machine dust removal system 1 in the third embodiment.

EXAMPLE five

The embodiment provides a milling machine dust removal system 1, and further improvement is made on the basis of the second embodiment.

As shown in fig. 5, the milling machine dust removal system 1 further includes a detector 14 and a controller 15. The detector 14 is provided above the primary conveyor 23 to detect the dust concentration in the space above the primary conveyor 23. The detector 14 may be a dust concentration detector. The controller 15 is arranged on the milling machine 2 and is electrically connected with the detector 14 and the fan 131; the controller 15 can receive the detection data of the detector 14 and control the working state of the fan 131 according to the dust concentration detected by the detector 14, so as to adjust the air volume of the fan 131. When the dust concentration is higher, the fan 131 can be controlled to increase the air volume; when the dust concentration is small, the air volume of the fan 131 can be controlled to be reduced, so that the dust removal efficiency is improved, and energy conservation is facilitated.

It should be noted that the detector 14 and the controller 15 in this embodiment are also applicable to the milling machine dust removal system 1 in the third embodiment.

EXAMPLE six

The embodiment provides a milling machine dust removal system 1, and is further improved on the basis of the first embodiment.

As shown in fig. 6, the milling machine dust removal system 1 further includes a spraying mechanism 16. Specifically, the spraying mechanism 16 is disposed in the first dust removal duct 11, and is connected to a top wall of the first dust removal duct 11. During the milling operation, atomized water is sprayed to the dust through the spraying mechanism 16 to adsorb the dust, so that dust particles floating in the air are reduced, and the dust removal effect is further improved.

In another implementation manner of this embodiment, the spraying mechanism 16 may also be disposed in the second dust removing duct 12, or the spraying mechanisms 16 may be disposed in the first dust removing duct 11 and the second dust removing duct 12, respectively, to further improve the dust removing effect.

EXAMPLE seven

In the present embodiment, a dust removal system 1 of a milling machine is provided, as shown in fig. 2, 4 and 7, the dust removal system 1 of the milling machine includes a first dust removal duct 11, a second dust removal duct 12, a dust collection assembly 13, a detector 14, a controller 15 and a spraying mechanism 16.

The first dust removal pipeline 11 and the second dust removal pipeline 12 are respectively arranged corresponding to a first-stage material conveyor 23 and a second-stage material conveyor 24 of the milling machine 2. The first dust removal duct 11 is communicated with the upper space of the first conveyor 23 of the milling machine 2 to provide a passage for adsorbing dust in the upper space of the first conveyor 23. The second dust removal duct 12 is provided on the second conveyor 24 of the milling machine 2 for receiving and directing the dust-laden air flow for discharge to the outside. The second dust removal pipe 12 is connected to the discharge port 242 of the second conveyor 24, so that the dust in the second dust removal pipe 12 can be discharged from the discharge port 242 of the second conveyor 24, and then transported to a transport vehicle along with the waste materials in the second conveyor 24, and transported away from the construction site.

The dust suction assembly 13 is arranged on the secondary conveyor 24 and is positioned between the first dust removal pipeline 11 and the second dust removal pipeline 12. The suction assembly 13 includes a fan 131, a venturi tube 132 and two suction branches 133. The fan 131 and the venturi tube 132 are sequentially disposed at a position between the first dust removal duct 11 and the second dust removal duct 12; an air inlet 1311 of the fan 131 is communicated with the first dust removal pipeline 11, and an air outlet 1312 of the fan 131 is communicated with an inlet end 1321 of the venturi tube 132; the outlet end 1325 of the venturi 132 communicates with the second dust removal duct 12. When the fan 131 works, it can generate an airflow movement and drive the airflow of the first dust removal pipeline 11 to move towards the second dust removal pipeline 12, so as to suck the dust in the space above the primary material conveyor 23 into the first dust removal pipeline 11, and further move towards the second dust removal pipeline 12 along with the airflow.

Specifically, the venturi 132 specifically includes an inlet end 1321, a convergent section 1322, a throat 1323, an expansion section 1324, and an outlet end 1325, and the convergent section 1322, the throat 1323, and the expansion section 1324 are sequentially connected from the inlet end 1321 to the outlet end 1325. Wherein the diameter of the converging section 1322 decreases from the outlet end 1325 toward the throat 1323, and the diameter of the expanding section 1324 increases from the throat 1323 toward the outlet end 1325, so that the throat 1323 in the middle is the smallest diameter of the venturi 132. Two dust suction branch pipes 133 are provided at both sides of the venturi tube 132 and extend in the length direction of the venturi tube 132. The two branch dust suction pipes 133 are connected to the position where the diameter of the venturi tube 132 is the smallest (i.e. the throat portion 1323), and the two branch dust suction pipes 133 extend to both sides of the receiving hopper 241 of the secondary conveyor 24. When the air flow in the first dust removing duct 11 flows to the second dust removing duct 12 through the position where the diameter of the venturi tube 132 is the smallest, a venturi effect is generated, so that an air pressure difference is generated in the dust suction branch pipe 133, and further, a suction force is generated, so that dust on both sides of the receiving hopper 241 is sucked into the dust suction branch pipe 133, and further, flows into the second dust removing duct 12 through the venturi tube 132, and is discharged to the transport vehicle through the discharge port 242.

The dust suction branch pipe 133 is provided with a plurality of dust suction holes 1331 at a portion close to the material receiving hopper 241, and the dust suction holes 1331 are arranged at intervals along the extending direction of the dust suction branch pipe 133 to enlarge the adsorption range of the dust suction branch pipe 133 and further reduce the amount of dust leaking from the two sides of the material receiving hopper 241 to the outer side. In addition, a portion of the dust suction branch pipe 133 on which the dust suction hole 1331 is provided is inclined to a side away from the material receiving hopper 241 to be adapted to the shape of the material receiving hopper 241, so as to maintain a proper distance from the material receiving hopper 241, prevent interference with the material receiving hopper 241, and facilitate dust suction.

The detector 14 is provided above the primary conveyor 23 to detect the dust concentration in the space above the primary conveyor 23. The detector 14 may be a dust concentration detector. The controller 15 is arranged on the milling machine 2 and is electrically connected with the detector 14 and the fan 131; the controller 15 can receive the detection data of the detector 14 and control the working state of the fan 131 according to the dust concentration detected by the detector 14, so as to adjust the air volume of the fan 131. When the dust concentration is higher, the fan 131 can be controlled to increase the air volume; when the dust concentration is small, the air volume of the fan 131 can be controlled to be reduced, so that the dust removal efficiency is improved, and energy conservation is facilitated.

The spraying mechanism 16 is disposed in the first dust removing duct 11 and connected to the top wall of the first dust removing duct 11. During the milling operation, atomized water is sprayed to the dust through the spraying mechanism 16 to adsorb the dust, so that dust particles floating in the air are reduced, and the dust removal effect is further improved.

The milling machine dust removal system 1 in this embodiment can suck the dust in the upper space of the first-level material conveyor 23 and the dust on the two sides of the receiving hopper 241 of the second-level material conveyor 24 into the second dust removal pipeline 12, can remove dust in the waste material production and conveying links of the milling machine 2, effectively relieves the dust leakage phenomenon at the receiving hopper 241 in the waste material conveying process, improves the dust removal efficiency, and has better dust removal effect. In addition, milling machine dust pelletizing system 1 in this embodiment simple structure, the repacking degree of difficulty and repacking cost are lower, easily realize.

Example eight

The present embodiment provides a milling machine 2, as shown in fig. 1, including: the milling machine comprises a milling machine body 21, a milling drum 22, a primary material conveyor 23, a secondary material conveyor 24 and the milling machine dust removal system 1 in any one of the embodiments.

The milling machine body 21 is a main structure of the milling machine 2, and is used for mounting and running each work mechanism. The milling drum 22 is disposed at the bottom of the milling machine body 21 and is used for milling the road surface to realize road surface renovation. In the length direction of the milling machine body 21, the first-stage material conveyor 23 is arranged in front of the milling drum 22, the second-stage material conveyor 24 is arranged in front of the first-stage material conveyor 23, and a receiving hopper 241 is arranged at one end of the second-stage material conveyor 24 close to the first-stage material conveyor 23. The primary material conveyor 23 receives waste materials generated by milling operation of the milling drum 22 and conveys the waste materials to a receiving hopper 241 of the secondary material conveyor 24; the secondary conveyor 24 then transports the waste material to the discharge port 242 and discharges the waste material to a transport vehicle for transporting the waste material, so as to transport the waste material away from the construction site.

A first dust removal pipeline 11 and a second dust removal pipeline 12 in the milling machine dust removal system 1 are respectively arranged corresponding to a first-level material conveyor 23 and a second material conveyor. The first dust removal pipeline 11 is communicated with the upper space of the first-stage material conveyer 23, the second dust removal pipeline 12 and the dust collection component 13 are arranged on the second-stage material conveyer 24, and the second dust removal pipeline 12 is communicated with the discharge hole 242 of the second-stage material conveyer 24; the dust suction assembly 13 connects the first dust removal duct 11 and the second dust removal duct 12. The dust collection assembly 13 is provided with a plurality of dust collection branch pipes 133, and the plurality of dust collection branch pipes 133 extend to two sides of the receiving hopper 241, so that air pressure difference is generated between the first dust removal pipeline 11 and the second dust removal pipeline 12 and between the dust collection branch pipes 133 and the second dust removal pipeline 12 through the dust collection assembly 13, so that dust in the space above the primary material conveyor 23 and dust on two sides of the receiving hopper 241 are sucked into the second dust removal pipeline 12 and further discharged into the transport vehicle through the discharge port 242 of the secondary material conveyor 24.

In addition, the milling machine 2 in this embodiment has all the beneficial effects of the milling machine dust removal system 1 in any one of the above embodiments, and details are not described herein.

Above combine the figure in detail to describe according to the utility model discloses a technical scheme of some embodiments, can inhale the second dust removal pipeline with the dust in the top space of the defeated material machine of one-level and the dust that connects the hopper both sides of second grade defeated material machine, can remove dust by producing to each link of carrying the waste material of milling machine, effectively alleviated the ash leakage phenomenon that connects hopper department in the transportation process, dust removal effect and dust collection efficiency are better. In addition, milling machine dust pelletizing system in this scheme simple structure, the repacking degree of difficulty is lower with the repacking cost, easily realizes.

In embodiments in accordance with the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the embodiments according to the present invention can be understood by those of ordinary skill in the art as the case may be.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit referred to must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the technical aspects of the present application.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment according to the present invention, and is not intended to limit the technical solution of the present invention, and it is obvious to those skilled in the art that various modifications and changes can be made in the technical solution of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the technical scheme of the application shall be included in the protection scope of the application.

Claims (10)

1. A milling machine dust removal system (1), characterized by comprising:

one end of the first dust removal pipeline (11) is communicated with the upper space of a first-stage material conveyor (23) of the milling machine (2), and the other end of the first dust removal pipeline (11) extends towards a second-stage material conveyor (24) of the milling machine (2);

the second dust removal pipeline (12) is arranged on a secondary material conveyer (24) of the milling machine (2) and extends along the length direction of the secondary material conveyer (24), and one end, far away from the first dust removal pipeline (11), of the second dust removal pipeline (12) is communicated with a discharge hole (242) of the secondary material conveyer (24);

the dust collection component (13) is arranged on the secondary material conveyor (24), a first end of the dust collection component (13) is connected with one end, far away from the primary material conveyor (23), of the first dust removal pipeline (11), a second end of the dust collection component (13) is connected with one end, close to the primary material conveyor (23), of the second dust removal pipeline (12), and the dust collection component (13) is used for sucking dust above the primary material conveyor (23) into the second dust removal pipeline (12) through the first dust removal pipeline (11) so that the dust is discharged from the discharge hole (242);

the dust collection assembly (13) is provided with a plurality of dust collection branch pipes (133) which extend to two sides of a receiving hopper (241) of the secondary material conveyor (24), and the dust collection assembly (13) can suck dust on two sides of the receiving hopper (241) into the second dust removal pipeline (12) through the dust collection branch pipes (133).

2. The milling machine dust extraction system (1) according to claim 1, characterized in that the dust collection assembly (13) comprises:

the fan (131) is arranged on the secondary material conveyor (24) and is positioned between the first dust removal pipeline (11) and the second dust removal pipeline (12), and an air inlet (1311) of the fan (131) is communicated with one end, far away from the primary material conveyor (23), of the first dust removal pipeline (11);

the Venturi tube (132) is arranged between the fan (131) and the second dust removal pipeline (12), the inlet end (1321) of the Venturi tube (132) is communicated with the air outlet (1312) of the fan (131), and the outlet end (1325) of the Venturi tube (132) is communicated with one end, close to the primary material conveyor (23), of the second dust removal pipeline (12);

the dust collection branch pipes (133) are arranged outside the Venturi pipe (132), one end of each dust collection branch pipe (133) is communicated with the position with the smallest diameter of the Venturi pipe (132), and the dust collection branch pipes (133) respectively extend to two sides of the material receiving hopper (241);

the Venturi tube (132) enables dust in the upper space of the primary conveyor (23) and dust on two sides of the receiving hopper (241) to be sucked into the second dust removal pipeline (12) through air pressure difference at two ends.

3. The milling machine dust extraction system (1) according to claim 1, characterized in that the dust collection assembly (13) comprises:

the Venturi tube (132) is arranged on the secondary conveyor (24) and is positioned between the first dust removal pipeline (11) and the second dust removal pipeline (12), and the inlet end (1321) of the Venturi tube (132) is communicated with one end, far away from the primary conveyor (23), of the first dust removal pipeline (11);

the fan (131) is arranged between the Venturi tube (132) and the second dust removal pipeline (12), an air inlet (1311) of the fan (131) is communicated with an outlet end (1325) of the Venturi tube (132), and an air outlet (1312) of the fan (131) is communicated with one end, close to the primary material conveyor (23), of the second dust removal pipeline (12);

the dust collection branch pipes (133) are arranged outside the Venturi pipe (132), one end of each dust collection branch pipe (133) is communicated with the position with the smallest diameter of the Venturi pipe (132), and the dust collection branch pipes (133) respectively extend to two sides of the material receiving hopper (241);

the Venturi tube (132) enables dust in the upper space of the primary conveyor (23) and dust on two sides of the receiving hopper (241) to be sucked into the second dust removal pipeline (12) through air pressure difference at two ends.

4. The milling machine dusting system (1) according to claim 2 or 3, characterized in that said venturi tube (132) comprises:

the inlet end (1321) and the outlet end (1325);

a throat (1323) disposed between the inlet end (1321) and the outlet end (1325);

a converging section (1322) disposed between the inlet end (1321) and the throat (1323), the converging section (1322) having a diameter that decreases from the outlet end (1325) toward the throat (1323);

an expansion section (1324) disposed between the throat portion (1323) and the outlet end (1325), and a diameter of the expansion section (1324) is gradually increased from the throat portion (1323) to a direction close to the outlet end (1325).

5. The milling machine dust removal system (1) according to claim 4,

the part of the dust collection branch pipe (133) close to the material receiving hopper (241) is provided with a plurality of dust collection holes (1331), and the dust collection holes (1331) are arranged at intervals along the extension direction of the dust collection branch pipe (133).

6. The milling machine dust removal system (1) according to claim 5,

the part of the dust suction branch pipe (133) provided with the dust suction hole (1331) inclines to one side far away from the material receiving hopper (241) so as to be matched with the shape of the material receiving hopper (241).

7. The milling machine dust removal system (1) according to claim 5,

the number of the dust suction branch pipes (133) is two, and the two dust suction branch pipes (133) are respectively arranged at two sides of the Venturi pipe (132) and respectively extend to two sides of the material receiving hopper (241).

8. The milling machine dust removal system (1) according to claim 2 or 3, characterized by further comprising:

the detector (14) is arranged above the first-stage material conveyor (23) and is used for detecting the dust concentration;

the controller (15) is arranged on the milling machine (2), the controller (15) is electrically connected with the detector (14) and the fan (131), and the controller (15) adjusts the air volume of the fan (131) according to the dust concentration detected by the detector (14).

9. The milling machine dust removal system (1) according to any one of claims 1 to 3, characterized by further comprising:

at least one spraying mechanism (16) is arranged in the first dust removing pipeline (11) and/or the second dust removing pipeline (12), and the spraying mechanism (16) is used for spraying atomized water to dust.

10. A milling machine (2), characterized by comprising:

a milling machine body (21);

the milling drum (22) is arranged at the bottom of the milling machine body (21) and is used for milling operation;

the primary material conveyor (23) is arranged in front of the milling drum (22) along the length direction of the milling machine body (21) so as to collect and convey waste materials generated by milling operation of the milling drum (22);

the secondary material conveyer (24) is arranged in front of the primary material conveyer (23) along the length direction of the milling machine body (21), a receiving hopper (241) is arranged at one end, close to the primary material conveyer (23), of the secondary material conveyer (24) and used for collecting the waste materials in the primary material conveyer (23), and a discharge hole (242) is formed at one end, far away from the primary material conveyer (23), of the secondary material conveyer (24) and used for discharging the waste materials outwards;

the dust removal system (1) of the milling machine as claimed in any one of claims 1 to 9, wherein a first dust removal duct (11) of the dust removal system (1) is communicated with the upper space of the primary conveyor (23), a second dust removal duct (12) of the dust removal system (1) is communicated with the discharge port (242), and a dust removal assembly of the dust removal system (1) is used for sucking dust in the upper space of the primary conveyor (23) and dust on both sides of the receiving hopper (241) into the second dust removal duct (12) so as to discharge the dust outwards from the discharge port (242).

Images