CN113020195A - Dustproof structure and method for machine-made sand and stone system - Google Patents
Dustproof structure and method for machine-made sand and stone system Download PDFInfo
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- CN113020195A CN113020195A CN202110418479.0A CN202110418479A CN113020195A CN 113020195 A CN113020195 A CN 113020195A CN 202110418479 A CN202110418479 A CN 202110418479A CN 113020195 A CN113020195 A CN 113020195A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
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Abstract
The invention provides a dustproof structure and a dustproof method for a machine-made sand stone system, wherein the machine-made sand stone system comprises a crusher and a screening machine, and an adhesive tape machine is arranged between the crusher and the screening machine; the structure comprises that the inlet of the crusher is also provided with a conical hopper, the conical hopper is a necking structure formed by connecting small ends of two conical bodies, the outlet of the crusher is provided with a buffer cavity, a water mist spray head is arranged in the buffer cavity, a feeding part of the adhesive tape machine is provided with a first dust cover, a discharging end of the adhesive tape machine is provided with a second dust cover, an enclosing cover is arranged above the screen surface of the screening machine, and a discharging end of the screening machine is provided with a buffering trough. The invention sets specific measures according to the characteristics of dust generation at each key point and key part, and makes the whole dustproof effect reach the best under the condition of not influencing the normal production of the sand and stone system. The invention is suitable for different material sources and crushing processes, and can achieve effective dustproof effect.
Description
Technical Field
The invention relates to the technical field of mechanism sand aggregate devices, in particular to a mechanism sand aggregate system dustproof structure and a mechanism sand aggregate system dustproof method.
Background
In the crushing process of gravel production, a large amount of dust can be generated, and the dust is very easy to raise when the gravel is conveyed and transferred, so that serious environmental influence is caused, the health of operating personnel is influenced, the equipment is caused to suffer from dust pollution, and the service life is shortened. The traditional sand and stone processing system mainly adopts the modes of spraying dust removal, dust removal by a dust collector, workshop sealing and the like for dust prevention. Although the spraying and dust removing are simple to operate, if the spraying amount is small, the effective dust removing effect is difficult to achieve; when the spraying amount is large, the moisture content of aggregate is large, the normal production of a system is influenced, and the quality of the sandstone aggregate is deteriorated. The dust remover is through installing the dust cover, is inhaled the dust remover by air negative pressure, filters and gets rid of the dust, but installation maintenance cost is too high, and the scope of collecting the dust is little, therefore not only with high costs, is difficult to realize comprehensive dust removal moreover. According to analysis, various crushers, blanking ports of adhesive tape machines, vibrating screens and the like are main parts for generating dust in the production process, and in order to ensure the quality of produced aggregate, a large amount of spraying operation cannot be carried out, so that the problem of dust raising in a production workshop inside a system is obvious.
Disclosure of Invention
In order to solve the technical problem, the invention provides a dustproof structure and a dustproof method for a machine-made sand stone system.
The invention is realized by the following technical scheme.
The invention provides a dustproof structure of a machine-made sand system, which comprises a crusher and a screening machine, wherein an adhesive tape machine is arranged between the crusher and the screening machine; the entry of breaker still is equipped with the toper hopper, the toper hopper is the necking down structure that two cone tip link to each other and form, and the export of breaker is equipped with the cushion chamber, is equipped with a water smoke shower nozzle in the cushion chamber, the material loading department of sealing-tape machine is equipped with first dust cover, and the discharge end of sealing-tape machine is equipped with the second dust cover, the sifter top of screening machine is equipped with the enclosure, and the discharge end of screening machine is equipped with the buffering silo.
The buffer cavity is of a closed box body structure, openings are oppositely formed in the upper end and the lower end of the box body, the diameter of the upper opening is larger than that of the lower opening, the upper opening is over against the outlet of the crusher, and the lower opening is over against the adhesive tape machine at the outlet of the crusher.
And the edge of the lower opening is also provided with an angle steel edge protector.
The upper end of the buffer cavity is fixedly connected with an outlet of the crusher.
The first dust cover is of a closed box body structure, an opening enabling sand aggregate to fall is formed in the upper end of the closed box body, the opening is opposite to the adhesive tape machine, and through grooves enabling the adhesive tape machine to penetrate are formed in the two ends of the closed box body structure.
The upper end of the first dust cover is fixedly connected with the buffer cavity.
The second dust cover is of a closed cavity structure, a notch enabling the adhesive tape machine to extend into is formed in the side face of the second dust cover, and an aggregate outlet is formed in the lower portion of the second dust cover.
And a buffer structure is arranged at the lower part of the second dust cover.
Buffer structure is by high to low including first step face, second step face, ejection of compact case, and the wall that the notch was kept away from to the second dust cover is located to first step face, and highly is not higher than the notch, and the wall of the notch one end of second dust cover is located to the second step face, ejection of compact case upper end opening and second dust cover intercommunication, ejection of compact case and second step face end connection, the ejection of compact case lower part is equipped with grit aggregate outlet.
The second step face one end is kept away from to ejection of compact bottom of the case portion is equipped with the third step face, and third step face one end slant opening is kept away from to ejection of compact bottom of the case portion.
The buffering material groove is an inclined closed shuttle groove, the inclined upper end of the shuttle groove is opened and is connected with a discharge port of the screening machine, a bottom step surface is arranged at the bottom of the shuttle groove, and a gravel aggregate outlet is arranged at the bottom of the shuttle groove far away from the bottom step surface.
The invention also provides a dustproof reconstruction method adopting the machine-made sand system, which comprises the following steps:
the method comprises the following steps of (1) transforming a crusher, sealing and welding a conical hopper at an inlet of the crusher, wherein the conical hopper is formed by connecting small ends of two conical bodies to form a necking structure, welding a buffer cavity with an upper opening and a lower opening opposite to each other at an outlet of the crusher, and arranging a water mist spray head facing the buffer cavity;
the method comprises the following steps of transforming an adhesive tape machine, fixedly arranging a first dust cover to surround a feeding position of the adhesive tape machine, fixing a second dust cover at a discharging end of the adhesive tape machine, wherein the upper end and two opposite side walls of the first dust cover are both provided with openings, and the side wall and the lower end of the second dust cover are both provided with openings which do not interfere with the operation and feeding of the adhesive tape machine;
an enclosing cover is fixed above the screen surface of the screening machine, and a buffer trough is arranged at the discharge end of the screening machine.
The invention also provides a dustproof method applying the dustproof structure of the machine-made sand system, which comprises the following steps:
the crusher feeds materials, and the amount of air entering the crusher is reduced by a necking structure formed by the conical hopper, so that the fan effect of the rotor of the crusher is weakened;
discharging by the crusher, accumulating the sandstone aggregate on the lower bottom surface of the buffer cavity to form an inclined surface, sliding the sandstone aggregate falling behind along the inclined surface, limiting the raised dust generated in the process in the buffer cavity, opening the water mist spray head at the moment, enhancing the adhesion of the raised dust under the action of the mist curtain, and increasing the collision probability under the space limitation of the buffer cavity so as to settle;
the first dust cover limits the dust generated by impact of gravel aggregates at the feeding position and blocks transverse wind, and the second dust cover limits the dust generated by inertia during material throwing of the adhesive tape machine and blocks longitudinal wind and transverse wind;
and (2) screening, wherein a sealed space is formed on the screen surface of the screening machine by surrounding the cover, dust generated during blanking and screening circularly flows in the sealed space until settlement, the buffer trough reduces the flowing speed of the discharged material of the screening machine, and the piston effect of the outlet of the screening machine is weakened.
The invention has the beneficial effects that:
the invention finds out the key points and key parts generated by the dust in the machine-made sand system, and sets the targeted measures according to the characteristics of the dust generated by each part: the fan effect of the crusher rotor is reduced through the conical hopper; the diffusion range of dust at the outlet of the crusher is limited by the buffer cavity and the water mist spray head, and the dust is rapidly settled; the dust cover prevents a large amount of dust from being rolled up by transverse wind in the conveying process; when the enclosure cover is adopted, the screened dust circularly flows and settles in the closed space, and meanwhile, the screen surface is not blocked when raining is ensured; the piston effect of the outlet of the sieving machine is eliminated through the buffer trough. Under the condition of not influencing the normal production of grit system for whole dustproof effect reaches the best. The invention is suitable for different material sources and crushing processes, and can achieve effective dustproof effect.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the buffer chamber and the first dust cover.
Fig. 3 is a schematic structural view of the second dust cover.
Fig. 4 is a schematic structural view of the buffer trough.
In the figure: 1-a crusher; 2, screening machine; 3-a tape machine; 4-a conical hopper; 5-a buffer chamber; 6-a first dust cover; 7-a second dust cover; 8-enclosing the cover; 9-buffer material groove; 10-angle steel edge protection; 11-notches; 12-a first step face; 13-a second step face; 14-a discharge box; 15-a third step surface; 16-bottom step surface.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
Fig. 1 shows a schematic structural diagram of the present invention:
the invention provides a dustproof structure of a machine-made sand system, which comprises a crusher 1 and a screening machine 2, wherein an adhesive tape machine 3 is arranged between the crusher 1 and the screening machine 2; the entry of breaker 1 still is equipped with toper hopper 4, toper hopper 4 is the necking down structure that two cone tip link to each other and form, and the export of breaker 1 is equipped with cushion chamber 5, is equipped with a water smoke shower nozzle in the cushion chamber 5, the material loading department of sealing-tape machine 3 is equipped with first dust cover 6, and the discharge end of sealing-tape machine 3 is equipped with second dust cover 7, the sifter top of screening machine 2 is equipped with enclosure 8, and the discharge end of screening machine 2 is equipped with buffering silo 9.
The working principle is as follows: the conical hopper 4 is arranged at the inlet of the crusher 1, so that the amount of air entering the crusher 1 along with aggregate is reduced, the fan effect of a rotor of the crusher 1 is reduced, and the amount of dust flying in the crusher 1 is reduced; a buffer cavity 5 is arranged at the outlet of the crusher 1, the flow speed of the materials in the buffer cavity 5 is reduced, the dust diffusion caused by speed change is limited in the buffer cavity 5, the dust is settled through a fog curtain formed by a spray nozzle, the spraying amount is reduced, and the water content of the sandstone aggregate is prevented from increasing; by arranging the first dust cover 6 and the second dust cover 7, a large amount of dust caused by transverse wind is avoided; the surrounding cover 8 is adopted to form a sealed space on the screen surface of the screening machine 2, so that dust generated during blanking and screening circularly flows and settles in the sealed space, and the screen surface can be prevented from being blocked during rain production; set up buffering silo 9 through screening machine 2 discharge gate, reduced the flow velocity of screening machine 2 ejection of compact, prevent that the piston effect in the bone material flow process from bringing out a large amount of dust.
The invention finds out the key points and key parts generated by the dust in the machine-made sand system, and sets the targeted measures according to the characteristics of the dust generated by each part: the fan effect of the crusher 1 rotor is reduced by the conical hopper 4; the diffusion range of the dust at the outlet of the crusher 1 is limited by the buffer cavity 5 and the water mist spray head, and the dust is rapidly settled; the dust cover prevents a large amount of dust from being rolled up by transverse wind in the conveying process; when the enclosure cover 8 is adopted, the screened dust circularly flows and settles in a closed space, and meanwhile, the screen surface is ensured not to be blocked when raining; the piston effect at the outlet of the screening machine 2 is eliminated by the buffer chute 9. Under the condition of not influencing the normal production of grit system for whole dustproof effect reaches the best. The invention is suitable for different material sources and crushing processes, and can achieve effective dustproof effect.
Fig. 2 shows a structural schematic diagram of the buffer cavity 5 and the first dust cover 6:
the buffer cavity 5 is of a closed box structure, openings are oppositely formed in the upper end and the lower end of the box, the diameter of the upper opening is larger than that of the lower opening, the upper opening is over against the outlet of the crusher 1, and the lower opening is over against the adhesive tape machine 3 at the outlet of the crusher 1. The function is as follows: firstly, discharging materials of the crusher 1 enter the buffer cavity 5 from an upper opening, and the blanking range is limited by the buffer cavity 5, so that aggregates accurately fall on the adhesive tape machine 3, and the range of generating raised dust is reduced; secondly, when the aggregates directly falling from the lower opening and the aggregates blocked in the buffer cavity 5 generate dust, most of the dust is diffused towards the buffer cavity 5 and limited in the buffer cavity 5, and the water utilization rate and the probability of mutual impact of dust after water absorption are greatly improved by spraying in the buffer cavity 5, so that rapid settlement is realized, and the water content of the aggregates cannot be obviously increased; thirdly, the aggregates are piled up after falling on two sides of the lower opening, then an inclined plane is formed, the aggregates falling behind slide downwards along the inclined plane, the speed of the aggregates when falling out of the lower opening is greatly reduced, and therefore dust generated by impact of the aggregates on the rubber belt conveyor 3 is reduced, the inclined plane can also prevent the buffer cavity 5 from being abraded, and the service life is long.
And an angle steel edge protector 10 is arranged at the edge of the lower opening. The strength and wear resistance are improved, and damage is prevented.
The upper end of the buffer cavity 5 is fixedly connected with the outlet of the crusher 1. The fixing is convenient, the bearing capacity is good, the sealing performance between the buffer cavity 5 and the outlet of the crusher 1 is good, and the flying dust is prevented from escaping.
The first dust cover 6 is of a closed box structure, an opening enabling sand aggregate to fall is formed in the upper end of the closed box, the opening is opposite to the adhesive tape machine 3, and through grooves enabling the adhesive tape machine 3 to penetrate are formed in the two ends of the closed box structure. The function is as follows: firstly, dust generated by impact of sandstone aggregate at the feeding position of the belt conveyor 3 is limited within the range of the first dust cover 6, so that the amount of dust diffused to the environment is reduced; secondly, the longitudinal wind at the feeding position of the adhesive tape machine 3 can be blocked by the adhesive tape machine 3, the transverse wind is the main reason of raising dust generated by the aggregate in the air, and the raising dust generated by the transverse wind is reduced or eliminated through the first dust cover 6.
The upper end of the first dust cover 6 is fixedly connected with the buffer cavity 5. The dust cover is convenient to fix, the upper end of the first dust cover 6 and the buffer cavity 5 are good in sealing performance, and the flying dust can be prevented from escaping.
The second dust cover 7 is of a closed cavity structure, a notch 11 enabling the adhesive tape machine 3 to extend into is formed in the side face of the second dust cover 7, and an aggregate outlet is formed in the lower portion of the second dust cover 7. The function is as follows: firstly, the dust generated by inertia during material throwing of the adhesive tape machine 3 is limited in the range of the second dust cover 7, so that the amount of dust diffused to the environment is reduced; secondly, the longitudinal wind and the transverse branch at the material throwing position of the adhesive tape machine 3 are blocked by the second dust cover 7, and the flying dust generated by wind power is reduced or eliminated through the second dust cover 7.
And a buffer structure is arranged at the lower part of the second dust cover 7. The kinetic energy of falling of the aggregate is reduced conveniently, the dust in the process is limited within the range of the second dust cover 7, and the dust amount diffused to the environment is reduced; meanwhile, the dust generated by impact when the aggregate falls to the next device (screening machine 2) is reduced.
Buffer structure is by high to low including first step face 12, second step face 13, ejection of compact case 14, and the wall that second dust cover 7 kept away from notch 11 is located to first step face 12, and highly is not higher than notch 11, and the wall of notch 11 one end of second dust cover 7 is located to second step face 13, 14 upper end openings of ejection of compact cases and second dust cover 7 intercommunication, ejection of compact case 14 and 13 end connection of second step face, 14 lower parts of ejection of compact cases are equipped with the grit aggregate export. The function is as follows: firstly, when the adhesive tape machine 3 throws materials, gravel aggregate is sequentially stacked on the first step surface 12 and the second step surface 13 to form an inclined surface, gravel falling from the rear slides down along the inclined surface, falling kinetic energy is reduced, generated dust is limited in the second dust cover 7, and dust generated by impact when the aggregate falls to the next device (screening machine 2) is reduced; secondly, the aggregate that falls behind glides along the inclined plane, and the effect that kinetic energy reduces is obvious, and the inclined plane also can prevent the wearing and tearing of cushion chamber 5, long service life.
The end, far away from second step face 13, of the bottom of discharge box 14 is provided with a third step face 15, and the end, far away from third step face 15, of the bottom of discharge box 14 is obliquely opened. The aggregate can form an inclined plane on the third step surface 15 conveniently, the falling kinetic energy of the aggregate is reduced, and the abrasion of the discharging box 14 is reduced.
The buffer material groove 9 is an inclined closed shuttle groove, the inclined upper end of the shuttle groove is opened and is connected with the discharge hole of the sieving machine 2, a bottom step surface 16 is arranged at the bottom of the shuttle groove, and a sand and stone aggregate outlet is arranged at the bottom of the shuttle groove far away from the bottom step surface 16. The aggregate can be conveniently formed into an inclined plane on the bottom step surface 16, the falling kinetic energy of the aggregate is reduced, and the abrasion of the discharging box 14 is reduced.
The invention also provides a dustproof reconstruction method adopting the machine-made sand system, which comprises the following steps:
the method comprises the following steps of modifying a crusher 1, sealing and welding a conical hopper 4 at an inlet of the crusher 1, wherein the conical hopper 4 is formed by connecting small ends of two conical bodies to form a necking structure, welding a buffer cavity 5 with an opening opposite to the upper part and the lower part at an outlet of the crusher 1, and arranging a water mist spray head in the buffer cavity 5;
the belt conveyor 3 is improved, a first dust cover 6 is fixedly arranged to surround the feeding position of the belt conveyor 3, a second dust cover 7 is fixed at the discharging end of the belt conveyor 3, the upper end and the two opposite side walls of the first dust cover 6 are both provided with openings, and the side wall and the lower end of the second dust cover 7 are both provided with openings which do not interfere with the operation and feeding of the belt conveyor 3;
an enclosing cover 8 is fixed above the screen surface of the screening machine 2, and a buffer trough 9 is arranged at the discharge end of the screening machine 2.
The invention also provides a dustproof method applying the dustproof structure of the machine-made sand system, which comprises the following steps:
the crusher 1 feeds materials, and the amount of air entering the crusher 1 is reduced by a necking structure formed by the conical hopper 4, so that the fan effect of a rotor of the crusher 1 is weakened;
the crusher 1 discharges materials, gravel aggregates are stacked on the lower bottom surface of the buffer cavity 5 to form an inclined surface, the gravel aggregates falling behind slide downwards along the inclined surface, raised dust generated in the process is limited in the buffer cavity 5, at the moment, the water mist nozzle is opened, the adhesion of the raised dust is enhanced under the action of a mist curtain, and the collision probability is increased under the space limitation of the buffer cavity 5, so that the raised dust is settled;
the belt conveyor 3 is used for feeding and throwing materials, the first dust cover 6 limits the dust generated by impact of sand aggregate at the feeding position and blocks transverse wind, and the second dust cover 7 limits the dust generated by inertia during material throwing of the belt conveyor 3 and blocks longitudinal wind and transverse wind;
and (3) screening, namely enclosing the cover 8 to form a sealed space on the screen surface of the screening machine 2, circularly flowing dust generated during blanking and screening in the sealed space until the dust is settled, reducing the flowing speed of the discharged material of the screening machine 2 by using the buffer material groove 9, and weakening the piston effect of the outlet of the screening machine 2.
According to the detailed description of the present specification, it is easily suggested by those skilled in the art that any machine-made sand system mainly composed of a crusher 1, a sieving machine 2, and a tape machine 3 can adopt the dust-proof structure or the dust-proof method of the machine-made sand system provided by the present invention, and is not limited to a certain type of crusher 1, a sieving machine 2, and a tape machine 3; and those skilled in the art can easily know that the crusher 1, the sieving machine 2 and the adhesive tape machine 3 belong to machines designed or purchased according to actual needs, and belong to the prior art.
Claims (10)
1. A machine-made sand system dustproof structure comprises a crusher (1) and a screening machine (2), wherein a sealing-tape machine (3) is arranged between the crusher (1) and the screening machine (2); the method is characterized in that: the entry of breaker (1) still is equipped with toper hopper (4), toper hopper (4) are the necking down structure that two cone tip link to each other and form, and the export of breaker (1) is equipped with cushion chamber (5), is equipped with a water smoke shower nozzle in cushion chamber (5), the material loading department of sealing-tape machine (3) is equipped with first dust cover (6), and the discharge end of sealing-tape machine (3) is equipped with second dust cover (7), the sifter top of screening machine (2) is equipped with enclosure (8), and the discharge end of screening machine (2) is equipped with buffering silo (9).
2. The machine-made sand system dustproof construction of claim 1, characterized in that: the buffer cavity (5) is of a closed box structure, the upper end and the lower end of the box are oppositely provided with openings, the diameter of the upper opening is larger than that of the lower opening, the upper opening is just opposite to the outlet of the crusher (1), and the lower opening is just opposite to the adhesive tape machine (3) at the outlet of the crusher (1).
3. The machine-made sand system dustproof construction of claim 1, characterized in that: the first dust cover (6) is of a closed box structure, an opening enabling sand aggregate to fall is formed in the upper end of the closed box, the opening is opposite to the adhesive tape machine (3), and through grooves enabling the adhesive tape machine (3) to penetrate are formed in the two ends of the closed box structure.
4. The machine-made sand system dustproof construction of claim 1, characterized in that: the second dust cover (7) is of a closed cavity structure, a notch (11) enabling the adhesive tape machine (3) to stretch into is formed in the side face of the second dust cover (7), and an aggregate outlet is formed in the lower portion of the second dust cover (7).
5. The machine-made sand system dustproof construction of claim 4, characterized in that: and a buffer structure is arranged at the lower part of the second dust cover (7).
6. The machine-made sand system dustproof construction of claim 1, characterized in that: buffer structure is by high to low including first step face (12), second step face (13), ejection of compact case (14), the wall of notch (11) is kept away from in second dust cover (7) is located in first step face (12), and highly be not higher than notch (11), the wall of notch (11) one end of second dust cover (7) is located in second step face (13), ejection of compact case (14) upper end opening and second dust cover (7) intercommunication, ejection of compact case (14) and second step face (13) end connection, ejection of compact case (14) lower part is equipped with the grit aggregate export.
7. The machine-made sand system dustproof construction of claim 6, characterized in that: the bottom of the discharging box (14) is far away from one end of the second step surface (13) and is provided with a third step surface (15), and the bottom of the discharging box (14) is far away from one end of the third step surface (15) and is obliquely opened.
8. The machine-made sand system dustproof construction of claim 1, characterized in that: the buffer trough (9) is an inclined closed shuttle trough, the inclined upper end of the shuttle trough is open and is connected with the discharge hole of the sieving machine (2), a bottom step surface (16) is arranged at the bottom of the shuttle trough, and a gravel aggregate outlet is arranged at the bottom of the shuttle trough far away from the bottom step surface (16).
9. The method for dust prevention modification of the machine-made sand system according to claim 1, wherein: comprises the following steps of (a) carrying out,
the crusher (1) is improved, a conical hopper (4) is sealed and welded at an inlet of the crusher (1), the small ends of two conical bodies of the conical hopper (4) are connected to form a necking structure, a buffer cavity (5) with an opening opposite to the upper part and the lower part is welded at an outlet of the crusher (1), and a water mist spray head is arranged in the buffer cavity (5) facing the upper part;
the method comprises the following steps of transforming an adhesive tape machine (3), fixedly arranging a first dust cover (6) to surround a feeding position of the adhesive tape machine (3), fixing a second dust cover (7) at a discharging end of the adhesive tape machine (3), wherein the upper end and two opposite side walls of the first dust cover (6) are both provided with openings, and the side walls and the lower end of the second dust cover (7) are both provided with openings and do not interfere with the operation and feeding of the adhesive tape machine (3);
an enclosing cover (8) is fixed above the screen surface of the screening machine (2), and a buffer trough (9) is arranged at the discharge end of the screening machine (2).
10. The dustproof method of the dustproof structure of the machine-made sand system according to claim 1, wherein: the method comprises the following steps:
the crusher (1) feeds materials, and the amount of air entering the crusher (1) is reduced by a necking structure formed by the conical hopper (4), so that the fan effect of a rotor of the crusher (1) is weakened;
discharging by the crusher (1), stacking sandstone aggregates on the lower bottom surface of the buffer cavity (5) to form an inclined surface, sliding the sandstone aggregates falling behind along the inclined surface, limiting the raised dust generated in the process in the buffer cavity (5), starting the water mist nozzle at the moment, enhancing the adhesion of the raised dust under the action of a mist curtain, increasing the collision probability under the spatial limitation of the buffer cavity (5), and thus settling;
the belt conveyor (3) is used for feeding and throwing materials, the first dust cover (6) limits the dust generated by impact of gravel aggregate at the feeding position and blocks transverse wind, and the second dust cover (7) limits the dust generated by inertia when the belt conveyor (3) is thrown and blocks longitudinal wind and transverse wind;
and (2) screening, wherein a sealing space is formed on the screen surface of the screening machine (2) by the surrounding cover (8), dust generated during blanking and screening circularly flows in the sealing space until the dust is settled, the flowing speed of the discharging material of the screening machine (2) is reduced by the buffer material groove (9), and the piston effect of the outlet of the screening machine (2) is weakened.
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| CN207012930U (en) * | 2017-07-06 | 2018-02-16 | 南京新天兴影像科技有限公司 | Batch mixer feeding mechanism is used in a kind of duplicator toner production |
| CN207478666U (en) * | 2017-09-30 | 2018-06-12 | 湖北康辉石业有限公司 | A kind of mute dustless barren rock crusher |
| CN108421615A (en) * | 2018-06-08 | 2018-08-21 | 漳州龙文维克信息技术有限公司 | It is a kind of can purifying and stive industrial waste material grinding device |
| CN110254970A (en) * | 2019-06-10 | 2019-09-20 | 长沙埃比林环保科技有限公司 | A kind of urban building waste transhipment funnel |
| CN110270402A (en) * | 2019-06-03 | 2019-09-24 | 河南工学院 | A kind of fixed-end forces shearing-crushing device being able to carry out fines collection |
| CN209635162U (en) * | 2018-11-12 | 2019-11-15 | 中国神华能源股份有限公司 | Chute dredger |
| CN110479724A (en) * | 2019-10-21 | 2019-11-22 | 潍坊天洁环保科技有限公司 | Flotation of ores dust resource utilization system |
| CN110606321A (en) * | 2019-10-24 | 2019-12-24 | 中煤科工集团上海有限公司 | Chute device for transfer point of belt conveyor |
| CN211285145U (en) * | 2019-11-26 | 2020-08-18 | 宏辉建材有限公司 | Asphalt batching device |
| CN212468837U (en) * | 2020-06-03 | 2021-02-05 | 中国水利水电第三工程局有限公司 | Combined type discharging hopper for gravel aggregate |
| CN212820349U (en) * | 2020-06-16 | 2021-03-30 | 晶工股份有限公司 | Crusher for separating powder and particles of crushed construction waste |
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| CN206871817U (en) * | 2017-06-07 | 2018-01-12 | 无锡中诺环保设备有限公司 | A kind of precisely rate controlling drop impact elephant trunk |
| CN207012930U (en) * | 2017-07-06 | 2018-02-16 | 南京新天兴影像科技有限公司 | Batch mixer feeding mechanism is used in a kind of duplicator toner production |
| CN207478666U (en) * | 2017-09-30 | 2018-06-12 | 湖北康辉石业有限公司 | A kind of mute dustless barren rock crusher |
| CN108421615A (en) * | 2018-06-08 | 2018-08-21 | 漳州龙文维克信息技术有限公司 | It is a kind of can purifying and stive industrial waste material grinding device |
| CN209635162U (en) * | 2018-11-12 | 2019-11-15 | 中国神华能源股份有限公司 | Chute dredger |
| CN110270402A (en) * | 2019-06-03 | 2019-09-24 | 河南工学院 | A kind of fixed-end forces shearing-crushing device being able to carry out fines collection |
| CN110254970A (en) * | 2019-06-10 | 2019-09-20 | 长沙埃比林环保科技有限公司 | A kind of urban building waste transhipment funnel |
| CN110479724A (en) * | 2019-10-21 | 2019-11-22 | 潍坊天洁环保科技有限公司 | Flotation of ores dust resource utilization system |
| CN110606321A (en) * | 2019-10-24 | 2019-12-24 | 中煤科工集团上海有限公司 | Chute device for transfer point of belt conveyor |
| CN211285145U (en) * | 2019-11-26 | 2020-08-18 | 宏辉建材有限公司 | Asphalt batching device |
| CN212468837U (en) * | 2020-06-03 | 2021-02-05 | 中国水利水电第三工程局有限公司 | Combined type discharging hopper for gravel aggregate |
| CN212820349U (en) * | 2020-06-16 | 2021-03-30 | 晶工股份有限公司 | Crusher for separating powder and particles of crushed construction waste |
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Application publication date: 20210625 |