CN209815230U - Micro-power induction dust suppression cover for receiving hopper of primary crushing station of strip mine - Google Patents

Abstract

The utility model discloses a strip mine first-level crushing station receiving hopper oligodynamic induction dust suppression cover, this dust suppression cover by the cover body, the first-level falls the dirt bed, second grade falls the dirt bed and vibrating device constitutes, wherein, the cover body comprises lower cover body and dome, be provided with the door opening of unloading on the left and right both sides wall of lower cover body respectively, and form the induced return air space through deep bead and L type check valve between the high dome in middle part in the dome and the lower cover body, first-level falls the dirt bed and second grade dust fall layer from bottom to top respectively and sets up in the cover body, vibrating device is connected with first-level falls the dirt bed and second grade dust fall layer respectively, under the drive of vibrating device, first-level falls the dirt bed and second grade dust fall layer and can take place the shake, remove the dust, accomplish self-cleaning; the dust suppression cover has the advantages of simple structure, reasonable design, low investment cost, good dust suppression effect, environmental friendliness, civilized production and the like.

Description

Micro-power induction dust suppression cover for receiving hopper of primary crushing station of strip mine

Technical Field

The utility model discloses a technical field that open-air dump truck unloaded and reprinted and press down dirt especially relates to an induced dust hood that presses down of open-air mine one-level crushing station receiving hopper oligodynamic.

Background

At a first-level crushing station (hereinafter referred to as a crushing station) of a strip mine, the upper part of a receiving hopper is mostly of an open structure for unloading, and when a dump truck is used for dumping materials, a large amount of dust-containing gas can be generated above the receiving hopper, so that the operation environment is seriously polluted, negative effects are brought to safety production and civilized production, the health of workers is influenced, and the sustainable development of enterprises is hindered.

In order to solve the problems of dust pollution and environment at a crushing station, the method mainly adopted at present comprises the following steps: a dust source sealing method, a high-pressure spraying dust suppression method, a dry bag-type dust remover method and the like.

The dust source sealing method is mainly characterized in that a structure enclosure is arranged on a self-discharging automobile platform to seal a dust producing part, so that the aim of controlling dust on site is fulfilled; however, the dump truck cannot be completely sealed due to complex conditions at the discharge port and lack of understanding of dust causes, and has secondary environmental problems of dust leakage and more dust spraying points, so that the dust suppression effect cannot be achieved.

The high-pressure spraying dust suppression method is mainly characterized in that an ultrasonic atomizer driven by compressed air is arranged in a dust production space to realize on-site dust suppression; although the dust suppression mode has a good effect, the problems of high system investment, high requirement on water cleanliness, high operation cost, high management cost and the like exist, and the problems of limited use area and time and the like exist because the dust suppression mode cannot be used in winter in cold and severe cold areas.

Although the dry-type bag-type dust collector method has large air handling capacity and high dust collection efficiency, the dry-type bag-type dust collector has the problems of large volume, heavy weight, high investment, large energy consumption, large operation and maintenance workload and the like.

Therefore, how to develop a novel dust suppression device based on the existing dust treatment method of the crushing station becomes a problem to be solved urgently for enterprises.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses an induced dust hood that suppresses of open-pit mine one-level crushing station receiving hopper oligodynamic, for the investment height that exists among the solution prior art, the energy consumption is big and press down the poor scheduling problem of dirt effect.

The utility model provides a technical scheme specifically does, a opencut one-level crushing station receiving hopper oligodynamic is induced to restrain the dirt cover, should press down the dirt cover and include: the dust removing device comprises a cover body 1, a primary dust removing layer 2, a secondary dust removing layer 3 and a vibrating device 4;

the cover body 1 includes: a lower cover 11 and a dome 12;

the lower cover body 11 is a square body, the left and right opposite side walls of the lower cover body 11 are respectively provided with a discharging door opening 111, and a stop curtain 112 is arranged at the discharging door opening 111;

the dome 12 is formed by splicing a high dome 121 in the middle and low domes 122 on two sides, the dome 12 is located above the lower cover 11, wherein the low domes 122 on two sides are all fixedly connected with the upper edge of the lower cover 11, two ends of the high dome 121 in the middle respectively extend outwards relative to two opposite left and right side walls of the lower cover 11, two end portions of the high dome 121 extending outwards are both provided with wind shields 123 extending downwards, an L-shaped check valve 124 is arranged between the wind shields 123 and the side wall of the lower cover 11, and an induced return air space 125 is formed between the L-shaped check valve 124 and the side wall of the lower cover 11, the wind shields 123 and the high dome 121;

the primary dust falling layer 2 and the secondary dust falling layer 3 are both arranged in the cover body 1, and the primary dust falling layer 2 is positioned below the secondary dust falling layer 3;

the vibration device 4 is respectively connected with the first-stage dust falling layer 2 and the second-stage dust falling layer 3, and the first-stage dust falling layer 2 and the second-stage dust falling layer 3 can shake under the driving of the vibration device 4 to carry out self-cleaning.

Preferably, the primary dust-reducing layer 2 comprises: a first structural net 21, a plurality of first springs 22, and a plurality of willow-like dust suppression units 23;

the first springs 22 are respectively arranged along the circumferential direction of the first structural net 21 at intervals, one end of each first spring 22 is fixedly connected with the first structural net 21, and the other end of each first spring 22 is fixedly connected with the inner wall of the cover body 1;

a plurality of the willow-shaped dust suppression units 23 are respectively suspended from the first structural net 21.

Further preferably, each of the willow-shaped dust suppression units 23 comprises: a first branch 231, a first hook 232 and a plurality of willow-shaped branches 233;

the first supporting rod 231 is vertically arranged;

the first hook 232 is positioned above the first supporting rod 231, and the lower end of the first hook 232 is fixedly connected with the upper end of the first supporting rod 231;

the plurality of wicker-like branches 233 are provided at intervals along the longitudinal direction of the first rod 231.

Further preferably, the secondary dust-reducing layer 3 comprises: a second structural net 31, a plurality of second springs 32, and a plurality of needle-like dust suppressing units 33;

the second springs 32 are respectively arranged along the circumferential direction of the second structural net 31 at intervals, one end of each second spring 32 is fixedly connected with the second structural net 31, and the other end of each second spring 32 is fixedly connected with the inner wall of the cover body 1;

a plurality of the needle-like dust suppression units 33 are respectively suspended on the second structural net 31.

Further preferably, each of the needle-like dust suppression units 33 includes: a second rod 331, a second hook 332, and a plurality of needle-like blades 333;

the second supporting rod 331 is vertically arranged;

the second hook 332 is positioned above the second supporting rod 331, and the lower end of the second hook 332 is fixedly connected with the upper end of the second supporting rod 331;

the plurality of needle-shaped branch leaves 333 are vertically arranged along the length direction of the second support rod 331 at intervals, and the lengths of the needle-shaped branch leaves 333 are gradually decreased from top to bottom along the second support rod 331.

Further preferably, the vibration device 4 includes: the four vibration units 41 are provided in the form of a single unit,

each of the vibration units 41 includes: a supporting seat 411, a crankshaft 412, a wind power rotating wheel 413, two crankshaft connecting rods 415 and a plurality of brackets 414;

the supporting seat 411 is positioned in the cover body 1;

the lower end of the crankshaft 412 penetrates through the dome 12, is positioned in the cover body 1 and is rotatably connected with the supporting seat 411, and a first crank 4121 and a second crank 4122 are arranged on the crankshaft 412 at intervals;

one end of each of the two crankshaft connecting rods 415 is respectively sleeved outside a crankshaft journal of the first crank 4121 and a crankshaft journal of the second crank 4122, wherein the other end of the crankshaft connecting rod 415 connected with the first crank 4121 is connected with the primary dust-settling layer 2 through a spring, and the other end of the crankshaft connecting rod 415 connected with the second crank 4122 is connected with the secondary dust-settling layer 3 through a spring;

the wind power rotating wheel 413 is positioned outside the cover body 1 and is coaxially and fixedly connected with the upper part of the crankshaft 412;

the plurality of brackets 414 are located in the cover body 1 and are arranged at intervals along the height direction of the crankshaft 412, one end of each bracket 414 is fixedly connected with the lower cover body 11, and the other end of each bracket 414 is rotatably connected with the crankshaft 412.

Further preferably, the open-pit mine first grade crushing station receiving hopper micro-power induction dust suppression cover still includes: an internal dust removal perfusion type scarecrow 5, a perfusion type fan 6, a filter bag 7 and a balance weight 8;

the inner dedusting perfusion-type scarecrow 5 is positioned outside the cover body 1 and is fixedly connected with the dome 12;

the perfusion fan 6 is fixedly arranged on the dome 12, an air outlet of the perfusion fan 6 faces the inner dedusting perfusion type scarecrow 5, and an air inlet of the perfusion fan 6 is positioned in the cover body 1;

the filter bag 7 is positioned inside the cover body 1 and sleeved outside an air inlet of the perfusion fan 6;

the counterweight 8 is positioned in the cover body 1 and is fixedly connected with the lower end of the filter bag 7.

The utility model provides a strip mine one-level crushing station receiving hopper micro-power induction dust suppression cover, by the cover body, one-level falls the dirt bed, second grade falls the dirt bed and vibrating device constitutes, wherein, the cover body comprises lower cover body and dome, be provided with the door opening of unloading respectively on the left and right both sides wall of lower cover body, and form induction return air space through deep bead and L type check valve between the high dome in middle part in the dome and the lower cover body, one-level falls dirt bed and second grade dust fall layer and sets up in the cover body from bottom to top respectively, in use, need cover the dust suppression cover in the top of receiving hopper, when backing a car that fills with bulk cargo and arrive the door opening position of unloading of dust suppression cover, along with the slope of tipper carriage, the material gets into the dust suppression cover from the door opening of unloading, can carry a large amount of air in the process of landing to receiving hopper and get into in the dust suppression cover, after the material falls to the receiving hopper, can arous, under the induction action, excited dust rises in the cover body along with the airflow and sequentially passes through the first dust-reducing layer and the second dust-reducing layer in the rising process, after dust is reduced for two times through the two dust-reducing layers, the dust in the airflow is basically filtered, clean air can continuously rise to a dome of the cover body, at the moment, the micro positive pressure airflow pushes away the L-shaped check valve and enters a negative pressure area (generated by logistics flow) between the unloading door opening and the self-unloading carriage plate, the negative pressure area continuously slides down along with materials, the negative pressure state is maintained outside the L-shaped check valve, positive pressure clean air at the upper part in the cover body is ejected out of the cover body from the L-shaped check valve through an induced return air space under the action of pressure difference, the clean air enters an external negative pressure space and is wrapped by the sliding materials and enters the cover body again, and the internal and external induced circulation of the dust-containing airflow is realized through the tissue structure in the cover body, the phenomenon that dust flies up at the receiving hopper when the crushing station discharges materials is avoided. In addition, the dust suppression cover is also provided with a vibration device, and the first-stage dust falling layer and the second-stage dust falling layer can shake under the driving of the vibration device to remove dust of respective dust suppression units and finish self-cleaning.

The utility model provides a opencut one-level crushing station receiving hopper oligodynamic is induced to restrain the dirt cover, has advantages such as simple structure, reasonable in design, investment cost are few, dust fall is effectual.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a micropower induction dust suppression cover of a receiving hopper of a primary crushing station of an open-pit mine according to an embodiment of the present disclosure;

fig. 2 is a side view of a micropower induction dust suppression cover of a receiving hopper of a primary crushing station of an open-pit mine according to an embodiment of the present disclosure;

FIG. 3 is a cross-sectional view along AA of FIG. 2;

FIG. 4 is a cross-sectional view taken along BB of FIG. 2;

fig. 5 is a schematic structural view of a willow-shaped dust suppression unit in a micro-power induced dust suppression cover of a receiving hopper of a primary crushing station of an open pit mine according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a needle-shaped dust suppression unit in a micro-power induced dust suppression cover of a receiving hopper of a primary crushing station of an open pit mine according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a vibration unit in a micropower induction dust suppression cover of a receiving hopper of a strip mine primary crushing station according to an embodiment of the present disclosure;

fig. 8 is a reference diagram for the use of the micropower induction dust suppression cover of the receiving hopper of the open-pit mine primary crushing station provided by the embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.

For when solving among the prior art carrying out broken station department dust pollution and handling, there is the investment height, the energy consumption is big and press down the poor scheduling problem of dirt effect, this embodiment utilizes induced circulation theory, a section dust suppression cover has been designed, press down at this section and set up two-stage dust fall structure in the dust suppression cover, the dust suppression cover exhaust space has all passed through twice dust fall from this, will uncontrollable dust motion through this press down the dust cover have organized the dust fall, avoid open-pit mine one-level broken station to receive hopper department to take place the phenomenon that the dust flies upward.

Referring to fig. 1, the structural schematic diagram of a dust suppression cover induced by micro-power of a receiving hopper of a primary crushing station of an open-pit mine is shown, the dust suppression cover mainly comprises a cover body 1, a primary dust falling layer 2, a secondary dust falling layer 3 and a vibration device 4, wherein the cover body 1 mainly comprises a lower cover body 11 and a dome 12, the lower cover body 11 is a square body, a discharge door opening 111 is respectively arranged on the left and right opposite side walls of the lower cover body 11, a baffle curtain 112 is arranged at the discharge door opening 111, referring to fig. 2, the dome 12 is formed by splicing a high dome 121 in the middle and low domes 122 on two sides, the dome 12 is positioned above the lower cover body 11, wherein the low domes 122 on two sides are fixedly connected with the upper edge of the lower cover body 11, referring to fig. 1, two ends of the high dome 121 in the middle respectively extend outwards relative to the left and right opposite side walls of the lower cover body 11, and two ends of the high dome 121 extending outwards are respectively provided with wind deflectors, an L-shaped check valve 124 is provided between the wind guard 123 and the side wall of the lower cover 11, and at this time, two induced return air spaces 125 are respectively enclosed by the L-shaped check valve 124, the side wall of the lower cover body 11, the wind shield 123 and the high dome 121 at the left side and the right side of the dust suppression cover, the two induced air returning spaces 125 correspond to the discharging door openings 111 on both sides of the lower cover 11 one by one, and the two induced air return spaces 125 are respectively positioned above the corresponding discharge door opening 111, the primary dust-reducing layer 2 and the secondary dust-reducing layer 3 are both arranged in the cover body 1, and the first dust falling layer 2 is positioned below the second dust falling layer 3, preferably, the second dust falling layer 3 is positioned at the joint of the lower cover body 11 and the dome 12, the vibrating device 4 is respectively connected with the first dust falling layer 2 and the second dust falling layer 3, under the drive of the vibrating device 4, the first dust falling layer 2 and the second dust falling layer 3 can shake to carry out self-cleaning.

The specific use method and the working process of the dust suppression cover are as follows: referring to fig. 8, when in use, the dust suppression cover a is required to be covered above the receiving hopper B, the lower cover body of the dust suppression cover is fixed with the ground through anchor bolts, when a dump truck filled with bulk materials backs up to the position of the unloading door opening of the dust suppression cover, along with the inclination of the carriage of the dump truck, the materials enter the dust suppression cover from the unloading door opening, and when the materials slide into the receiving hopper, a large amount of air is carried into the dust suppression cover, after the materials fall into the receiving hopper, a large amount of dust is excited, under the induction action, the excited dust rises in the cover body along with the air flow, and during the rising process, the materials sequentially pass through the first dust reduction layer and the second dust reduction layer, after twice dust reduction through the two dust reduction layers, the dust in the air flow is basically filtered, while the clean air continues to rise to the dome of the cover body, at the moment, the micro positive pressure air flow pushes the L-shaped check valve open, and enters a negative pressure region (the negative pressure region is generated by the flow of material flow, along with the continuous landing of the materials, the outside of the L-shaped check valve is maintained in a negative pressure state, positive pressure clean air at the upper part in the cover is discharged out of the cover body from the L-shaped check valve through the induced air return space under the action of pressure difference, and after reaching the outside negative pressure space, the clean air is wrapped by the sliding materials and enters the cover again, and the dust-containing air flow is guided by an organization structure in the cover to realize the internal and external induced circulation of the dust suppression cover, so that the phenomenon that dust flies when the crushing station unloads is avoided at the receiving hopper.

The dust suppression cover is also provided with a vibration device, and the first-stage dust falling layer and the second-stage dust falling layer can shake under the driving of the vibration device so as to remove dust of respective dust suppression units and finish self-cleaning.

Above-mentioned one-level in the dust suppression cover falls dust layer 2 and second grade and falls dust layer 3 and be used for preliminary dust fall and meticulous dust fall respectively, consequently, as long as can realize any dust fall structure of above-mentioned dust fall purpose all. The following is a specific structure of the primary dust falling layer 2 and the secondary dust falling layer 3 developed in the present embodiment, but is not limited to the following structure.

Referring to fig. 3, the primary dust-settling layer 2 is mainly composed of a first structural net 21, a plurality of first springs 22 and a plurality of willow-shaped dust-suppressing units 23, wherein the plurality of first springs 22 are respectively arranged along the circumferential direction of the first structural net 21 at intervals, one end of each first spring 22 is fixedly connected with the first structural net 21, the other end of each first spring 22 is fixedly connected with the inner wall of the cover body 1, and the plurality of willow-shaped dust-suppressing units 23 are respectively suspended on the first structural net 21.

Referring to fig. 5, each of the willow-shaped dust suppression units 23 is composed of a first support rod 231, a first hook 232, and a plurality of willow-shaped branches 233, wherein the first support rod 231 is vertically disposed, the first hook 232 is located above the first support rod 231, a lower end of the first hook 232 is fixedly connected to an upper end of the first support rod 231, the plurality of willow-shaped branches 233 are respectively disposed at intervals along a length direction of the first support rod 231, and each of the willow-shaped dust suppression units 23 is respectively suspended on the first structural grid 21 through the first hook 232.

The dust fall principle of the first-stage dust fall layer is as follows: because a plurality of willow-shaped dust suppression units are suspended on the first structural net, when the airflow with dust passes through the primary dust reduction layer, the airflow is blocked by a plurality of willow-shaped branch leaves in the willow-shaped dust suppression units, so that part of dust falls or is attached to the surfaces of the willow-shaped dust suppression units, and primary dust reduction is completed.

Referring to fig. 4, the secondary dust-settling layer 3 is mainly composed of a second structural net 31, a plurality of second springs 32 and a plurality of needle-shaped dust suppression units 33, wherein the plurality of second springs 32 are respectively arranged along the circumferential direction of the second structural net 31 at intervals, one end of each second spring 32 is fixedly connected with the second structural net 31, the other end of each second spring 32 is fixedly connected with the inner wall of the cover body 1, and the plurality of needle-shaped dust suppression units 33 are respectively suspended on the second structural net 31.

Referring to fig. 6, each needle-shaped dust suppression unit 33 is composed of a second support rod 331, a second hook 332, and a plurality of needle-shaped support blades 333, wherein the second support rod 331 is vertically disposed, the second hook 332 is located above the second support rod 331, the lower end of the second hook 332 is fixedly connected to the upper end of the second support rod 331, the plurality of needle-shaped support blades 333 are vertically disposed along the length direction of the second support rod 331 at intervals, and the lengths of the needle-shaped support blades 333 decrease from top to bottom sequentially along the second support rod 331.

The dust fall principle of the second-stage dust fall layer is as follows: because the plurality of needle-shaped dust suppression units are hung on the second structural net, when the airflow with dust passes through the primary dust falling layer, the airflow is blocked by the plurality of needle-shaped branch blades in the needle-shaped dust suppression units, so that part of dust falls or is attached to the surfaces of the needle-shaped dust suppression units to finish secondary dust falling, wherein the lengths of the needle-shaped branch blades in the needle-shaped dust suppression units are gradually reduced from top to bottom, and the main purpose is to gradually block the dust in the airflow and finally finish all fine dust falling.

Above-mentioned one-level falls dirt bed and second grade and falls dirt bed and all through spring structure and cover body coupling, its main aim at for cooperateing with vibrating device, through the spring action of spring, can realize one-level fall dirt bed and second grade fall the vibration by a wide margin of dirt bed, provide the effect of its automatically cleaning, and then realize the long-term of its dust fall.

Above-mentioned vibrating device 4 among the dust suppression cover can adopt multiple structure, reach can drive the one-level fall the dirt layer with the second grade fall the dirt layer vibrate can, in order to reduce this dust suppression cover's energy consumption, as technical scheme's improvement, designed a section below and utilized the natural wind-force of strip mine as the power supply to realize vibrating device 4's the drive mode of function, with reducing the product energy consumption, realize the purpose of automatically cleaning.

The vibrating device 4 mainly comprises four vibrating units 41, referring to fig. 3 and 4, the four vibrating units 41 are arranged at intervals along the circumferential direction of the primary dust-reducing layer 2 and the secondary dust-reducing layer 3, and are respectively located at four corners of the primary dust-reducing layer 2 and the secondary dust-reducing layer 3, referring to fig. 7, each vibrating unit 41 comprises a supporting seat 411, a crankshaft 412, a wind wheel 413, two crankshaft connecting rods 415 and a plurality of supports 414, wherein the supporting seat 411 is located in the cover body 1, the lower end of the crankshaft 412 passes through the dome 12 and is located in the cover body 1 and is rotatably connected with the supporting seat 411, the crankshaft 412 is provided with a first crank 4121 and a second crank 4122 at intervals, one end of each of the two crankshaft connecting rods 415 is respectively sleeved outside a crankshaft journal of the first crank 4121 and a crankshaft journal of the second crank 4122, wherein the other end of the crankshaft connecting rod 415 connected with the first crank 4121 is connected with the first structural network 21 in the primary dust-reducing layer 2 through a spring 22, the other end of the crankshaft connecting rod 415 connected with the second crank 4122 is connected with the second structural net 31 in the second-stage dust-reducing layer 3 through a spring 32, the wind-driven wheel 413 is located outside the cover body 1 and is coaxially and fixedly connected with the upper portion of the crankshaft 412, the plurality of supports 414 are located in the cover body 1 and are arranged at intervals along the height direction of the crankshaft 412, one end of each support 414 is fixedly connected with the lower cover body 11, and the other end of each support 414 is rotatably sleeved outside the crankshaft 412 through a bearing.

The specific working process of the vibration device is that when wind exists outside the dust suppression cover, the wind current blows the wind power rotating wheel to rotate, so as to drive the crankshaft coaxially connected with the wind power rotating wheel to synchronously rotate, the crankshaft rotates to drive the crankshaft connecting rod to reciprocate, the crankshaft connecting rod pulls the spring to enable the first structural net or the second structural net connected with the crankshaft to periodically vibrate, and then the willow-shaped dust suppression unit or the needle-shaped dust suppression unit hung on the crankshaft vibrates or swings correspondingly, so that dust attached to the surface of the willow-shaped dust suppression unit is removed, and self-cleaning is completed.

As an improvement of the technical scheme, referring to fig. 1, an inner dust removal perfusion type scarecrow 5, a perfusion fan 6, a filter bag 7 and a balance weight 8 are further designed in the micro-power induced dust suppression cover of the receiving hopper of the primary crushing station of the strip mine, wherein the inner dust removal perfusion type scarecrow 5 is positioned outside the cover body 1 and fixedly connected with a dome 12, the perfusion fan 6 is fixedly installed on the dome 12, an air outlet of the perfusion fan 6 faces the inner dust removal perfusion type scarecrow 5, an air inlet of the perfusion fan 6 is positioned in the cover body 1, the filter bag 7 is positioned inside the cover body 1 and sleeved outside an air inlet of the perfusion fan 6, and the balance weight 8 is positioned inside the cover body 1 and fixedly connected with the lower end of the filter bag 7.

The main purpose of the arrangement of the internal dust removal perfusion type scarecrow is indication, when the dust suppression cover works, the perfusion type fan is started, the perfusion type fan can convey gas in the cover into the external internal dust removal perfusion type scarecrow body, therefore, the internal dust removal perfusion type scarecrow can be blown to fly, when people around the cover see the flying inner dust removal perfusion type scarecrow body, the people know that the receiving hopper of the crushing station is unloading, in order that air exhausted by the scarecrow body meets the environmental requirement, the air inlet of the perfusion type fan is provided with a filter bag which is generally a cylinder type filter bag, the gas in the cover body is filtered by the filter bag and then exhausted by the perfusion type scarecrow body, in order to avoid that the filter bag is deformed under the action of gas in the cover body, the lower end of the filter bag is provided with a balance weight.

In addition, because the height of the exhaust port required by environmental protection is not lower than 15 meters, the design of the scarecrow can be used as the extension of the exhaust port of the dust suppression cover so as to meet the requirement of environmental protection.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims (7)

1. The utility model provides a first-level crushing station receiving hopper oligodynamic of strip mine is induced to restrain dust cover which characterized in that includes: the dust removing device comprises a cover body (1), a primary dust removing layer (2), a secondary dust removing layer (3) and a vibrating device (4);

the cover body (1) comprises: a lower cover body (11) and a dome (12);

the lower cover body (11) is a square body, the left and right opposite side walls of the lower cover body (11) are respectively provided with a discharging door opening (111), and a stop curtain (112) is arranged at the discharging door opening (111);

the dome (12) is formed by splicing a high dome (121) in the middle and low domes (122) on two sides, the dome (12) is located above the lower cover body (11), wherein the low domes (122) on two sides are all fixedly connected with the upper edge of the lower cover body (11), two ends of the high dome (121) in the middle respectively extend outwards relative to two opposite left and right side walls of the lower cover body (11), two end parts of the high dome (121) extending outwards are respectively provided with a wind shield (123) extending downwards, an L-shaped check valve (124) is arranged between the wind shield (123) and the side wall of the lower cover body (11), and an induced return air space (125) is formed among the L-shaped check valve (124), the side wall of the lower cover body (11), the wind shield (123) and the high dome (121);

the primary dust falling layer (2) and the secondary dust falling layer (3) are both arranged in the cover body (1), and the primary dust falling layer (2) is positioned below the secondary dust falling layer (3);

the vibration device (4) is respectively connected with the first-stage dust falling layer (2) and the second-stage dust falling layer (3), and the first-stage dust falling layer (2) and the second-stage dust falling layer (3) can shake under the driving of the vibration device (4) to carry out self-cleaning.

2. The micropower induction dust suppression cover for the receiving hopper of the primary crushing station of the strip mine according to claim 1, wherein the primary dust reduction layer (2) comprises: a first structural net (21), a plurality of first springs (22), and a plurality of willow-like dust suppression units (23);

the first springs (22) are arranged along the circumferential direction of the first structural net (21) at intervals, one end of each first spring (22) is fixedly connected with the first structural net (21), and the other end of each first spring (22) is fixedly connected with the inner wall of the cover body (1);

a plurality of said dust suppression units (23) are suspended from said first structural net (21) respectively.

3. The micropower-induced dust suppression hood of a receiving hopper of a primary crushing station of a strip mine of claim 2, wherein each of the willow-like dust suppression units (23) comprises: a first support rod (231), a first hook (232) and a plurality of willow-shaped support leaves (233);

the first supporting rod (231) is vertically arranged;

the first hook (232) is positioned above the first support rod (231), and the lower end of the first hook (232) is fixedly connected with the upper end of the first support rod (231);

the plurality of wicker-like branches (233) are arranged at intervals along the longitudinal direction of the first rod (231).

4. The micropower induction dust suppression cover of the receiving hopper of the primary crushing station of the strip mine according to claim 1, wherein the secondary dust falling layer (3) comprises: a second structural mesh (31), a plurality of second springs (32), and a plurality of needle-like dust suppression units (33);

the second springs (32) are arranged along the circumferential direction of the second structural net (31) at intervals respectively, one end of each second spring (32) is fixedly connected with the second structural net (31), and the other end of each second spring is fixedly connected with the inner wall of the cover body (1);

a plurality of the needle-like dust suppression units (33) are respectively suspended on the second structural net (31).

5. The primary crushing station hopper micropower induction dust hood according to claim 4, wherein each needle-like dust suppression unit (33) comprises: a second strut (331), a second hook (332), and a plurality of needle-like struts (333);

the second supporting rod (331) is vertically arranged;

the second hook (332) is positioned above the second support rod (331), and the lower end of the second hook (332) is fixedly connected with the upper end of the second support rod (331);

the needle-shaped branch leaves (333) are vertically arranged along the length direction of the second supporting rod (331) at intervals, and the lengths of the needle-shaped branch leaves (333) are gradually decreased from top to bottom along the second supporting rod (331).

6. The micropower-induced dust suppression hood of a receiving hopper of a primary crushing station of a strip mine according to claim 1, wherein the vibration device (4) comprises: four vibration units (41) which are provided with a plurality of vibration elements,

each of the vibration units (41) includes: the wind power generation device comprises a supporting seat (411), a crankshaft (412), a wind power rotating wheel (413), two crankshaft connecting rods (415) and a plurality of supports (414);

the supporting seat (411) is positioned in the cover body (1);

the lower end of the crankshaft (412) penetrates through the dome (12) and is positioned in the cover body (1) and is rotationally connected with the supporting seat (411), and a first crank throw (4121) and a second crank throw (4122) are arranged on the crankshaft (412) at intervals;

one ends of the two crankshaft connecting rods (415) are respectively sleeved outside a crankshaft journal of the first crank throw (4121) and a crankshaft journal of the second crank throw (4122), wherein the other end of the crankshaft connecting rod (415) connected with the first crank throw (4121) is connected with the first-stage dust-reducing layer (2) through a spring, and the other end of the crankshaft connecting rod (415) connected with the second crank throw (4122) is connected with the second-stage dust-reducing layer (3) through a spring;

the wind power rotating wheel (413) is positioned outside the cover body (1) and is coaxially and fixedly connected with the upper part of the crankshaft (412);

a plurality of the supports (414) are all located in the cover body (1) and are arranged along the height direction of the crankshaft (412) at intervals, one end of each support (414) is fixedly connected with the lower cover body (11), and the other end of each support is rotatably connected with the crankshaft (412).

7. The micropower induction dust suppression cover for the receiving hopper of the open-pit primary crushing station according to claim 1, further comprising: an internal dust removal perfusion-type scarecrow (5), a perfusion-type fan (6), a filter bag (7) and a balance weight (8);

the inner dedusting perfusion-type scarecrow (5) is positioned outside the cover body (1) and is fixedly connected with the dome (12);

the perfusion fan (6) is fixedly arranged on the dome (12), an air outlet of the perfusion fan (6) faces the inner dedusting perfusion type rice straw walker (5), and an air inlet of the perfusion fan (6) is positioned in the cover body (1);

the filter bag (7) is positioned inside the cover body (1) and sleeved outside an air inlet of the perfusion fan (6);

the counterweight (8) is positioned in the cover body (1) and is fixedly connected with the lower end of the filter bag (7).