CN113499985B

CN113499985B - A jetting device and dry separation machine for sorting out material

Info

Publication number: CN113499985B
Application number: CN202110774609.4A
Authority: CN
Inventors: 郭劲; 汪海山; 薛立杰
Original assignee: Xndt Technology Co ltd
Current assignee: Xndt Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2023-03-28
Anticipated expiration: 2041-07-08
Also published as: CN113499985A

Abstract

The invention provides a blowing device for sorting materials and a dry separator, wherein the blowing device comprises: the top of the spraying and blowing assembly is covered with a nozzle shield for preventing waste rocks or dust from falling into the nozzle; and the dust removal assembly is arranged on the blowing assembly and is used for carrying out dust removal treatment on the waste rocks or dust deposited on the nozzle shield. The dust removal component arranged on the blowing component is used for removing dust from waste rocks or dust deposited on the nozzle shield, so that dust deposition on the nozzle shield is avoided, mineral particles and dust are prevented from entering the inside of the blowing component, and the damage to the electric control valve caused by the fact that the mineral particles and dust enter the inside of the nozzle of the blowing component, particularly the inner cavity of the valve body, can be avoided.

Description

A jetting device and dry separation machine for sorting out material

Technical Field

The invention relates to the technical field of mining machinery, in particular to an injection device for sorting materials and a dry separation machine.

Background

In recent years, with the rapid increase of the demand of mineral resources, ores are mined and processed in large quantities, and a certain amount of barren rocks are inevitably mixed into the ores in mining operations of mining enterprises. At present, the mineral separation in mineral processing is carried out by adopting an intelligent dry separator sorting device.

At present, an injection device is adopted to inject ores so as to change the movement track of the ores, so that different ores move with different movement tracks, and then the separation between low-grade waste rocks and/or surrounding rocks and concentrate is realized. Referring to fig. 1 to 3, there is shown a structure of a blowing device in the prior art. As shown, the blowing device includes: the nozzle comprises a nozzle 1', a blowing shield 2', a protection plate 3', a valve plate assembly 4' and a mounting and fixing seat 5'; the nozzle 1 'is installed on the valve plate assembly 4' through a screw, the whole body is assembled on the installation fixing seat 5 'through the screw after the assembly is completed, and finally the blowing protective cover 2' and the protective plate 3 'are covered, so that the installation fixing seat 5', the blowing protective cover 12 'and the protective plate 3' are arranged in a surrounding mode to form a blowing cavity structure 6', and the blowing protective cover 2' and the protective plate 3 'are arranged in the blowing cavity structure 6'. Wherein the valve plate assembly 4' comprises a valve plate and a solenoid valve.

However, in the operation process of the blowing device in the prior art, because the upper surface of the blowing shield 2' is wide, a large amount of mineral particles and dust are easily accumulated, so that the mineral particles easily enter the interior of the blowing cavity structure 6' and the nozzle air passage of the nozzle 1', even enter the air cavity of the electromagnetic valve, and the normal use of the electronic control valve and the nozzle is affected.

Disclosure of Invention

In view of the above, the invention provides a blowing device and a dry separation machine for separating materials, and aims to solve the problems that a blowing protective cover of the existing blowing device is easy to gather a large amount of mineral particles and dust, and easy to enter a cavity, a nozzle air passage and even an electromagnetic valve air cavity to influence the normal use of an electric control valve and a nozzle.

In one aspect, the present invention provides a blowing device for sorting materials, the blowing device comprising: the top of the blowing component is covered with a nozzle shield for preventing waste rocks or dust from falling into the blowing component; and the dust removal assembly is arranged on the spraying and blowing assembly and is used for carrying out dust removal treatment on the waste rocks or dust deposited on the nozzle shield.

Further, above-mentioned jetting device for sorting material, the dust removal subassembly includes: the dust removal support plays a supporting role; the guide rail is arranged on the dust removal support along the length direction of the nozzle shield and is used for guiding the sliding of the dust remover; the dust remover is connected to the guide rail in a sliding manner along the length direction of the guide rail and is used for removing dust from waste rocks or dust deposited at different positions of the nozzle shield; and the power output end of the driving mechanism is connected with the dust remover and is used for driving the dust remover to slide along the length direction of the guide rail.

Further, above-mentioned jetting device for sorting material, the dust remover includes: the sliding block is connected to the guide rail in a sliding way; the toothed belt clamping block is arranged on the sliding block, the toothed belt clamping block is arranged on a transmission belt of the driving mechanism in a penetrating mode, meshing teeth meshed with the inner teeth of the transmission belt are arranged on the meshing side of the toothed belt clamping block, and the toothed belt clamping block is used for driving the sliding block to slide along the guide rail under the action of the transmission belt; and the spray head is arranged on the slide block and is used for spraying positive pressure air blowing flow to spray waste rocks or dust or spraying negative pressure air blowing flow to suck the waste rocks or dust.

Further, according to the blowing device for sorting materials, the nozzle is connected with the airflow pipe, and the periphery of the airflow pipe is provided with the guide drag chain, so that the functions of traction and protection are achieved.

Further, above-mentioned jetting device for sorting material, actuating mechanism includes: a drive motor; the driving wheel is arranged on one side of the nozzle shield, is connected with the driving motor and is driven by the driving motor to rotate; a driven wheel disposed at the other side of the nozzle guard; the transmission belt is arranged on the periphery of the nozzle shield, and inner teeth of the transmission belt are respectively meshed with the driving wheel and the driven wheel and used for driving the dust remover to slide along the sliding rail; and the tension adjusting piece is connected with the driven wheel and used for applying driving force to the driven wheel so as to drive the driven wheel to move away from or close to the driving wheel, and further adjust the tension of the transmission belt.

Further, above-mentioned jetting device for sorting material, the dust removal subassembly still includes: a dust detector for detecting whether waste rocks or dust are present on the nozzle guard; a position detector connected to the dust detector for receiving a detection result detected by the dust detector, and confirming a position of the waste stone or dust when the detection result indicates that the nozzle shield has the waste stone or dust; and the controller is connected with the position detector and used for receiving the position of the waste stone or dust confirmed by the position detector and controlling the driving mechanism according to the position of the waste stone or dust so as to control the dust remover to slide along the slide rail to the position close to the waste stone or dust.

Further, above-mentioned jetting device for sorting material, the jetting subassembly includes: a blowing support; the sealing top plate is arranged at the top of the blowing support, and a closed cavity is formed between the sealing top plate and the blowing support in an enclosing manner; the nozzle penetrates through the sealing top plate, and the spraying part of the nozzle is arranged outside the sealed cavity and is positioned in a spraying cavity surrounded by the nozzle shield and the sealing top plate.

Furthermore, according to the blowing device for sorting materials, the nozzle is provided with the elastic plugging component for elastically plugging the nozzle air passage, and when the nozzle works, high-pressure airflow elastically compresses the elastic plugging component and then is ejected out of the nozzle air passage, so that waste rocks or dust in the nozzle air passage are discharged.

Further, above-mentioned jetting device for sorting material, elasticity shutoff subassembly includes: the plug core, the fastening screw and the spring; one end of the spring is connected with the plugging core, and the other end of the spring is connected with the fastening screw and used for applying elastic force to the plugging core so that the plugging core is at least partially and elastically plugged in the nozzle air passage.

Furthermore, in the injection device for sorting materials, the injection assembly is provided with a shield which is used for covering the outer sides of the nozzle shield and the dust removal assembly; the dust remover arranged at one side of the two groups of dust removers of the dust removal assembly, which is close to the protective cover, is a negative pressure air suction type dust remover and is used for ejecting negative pressure air suction airflow to suck waste rocks or dust in the protective cover; the other group of dust collectors are positive pressure blowing type dust collectors used for spraying positive pressure blowing air flow to blow waste rocks or dust.

The blowing device for sorting materials is used for removing dust of waste rocks or dust deposited on the nozzle shield through the dust removing assembly arranged on the blowing assembly, so that dust deposition on the nozzle shield is avoided, mineral particles and dust are prevented from entering the inside of the blowing assembly, and the damage to the electric control valve caused by the fact that the mineral particles and the dust enter the inside of the nozzle of the blowing assembly, particularly the inner cavity of the valve body, can be avoided.

Particularly, the dust remover of the dust removing assembly can slide along the length direction of the guide rail so as to remove dust from waste rocks or dust deposited at different positions of the nozzle shield, and can also accurately remove dust from the waste rocks or dust so as to prevent the waste rocks or dust from flying or flowing and further prevent the waste rocks or dust from entering the inside of the spraying and blowing assembly again.

Furthermore, a sealing top plate and a sealing rubber strip are arranged at an opening part of the injection support in the injection assembly, so that a closed cavity is formed in the injection assembly, mineral small particles, namely broken stones and dust, are prevented from entering the closed cavity of the injection assembly, and the performance of the electromagnetic valve is prevented from being influenced by the mineral small particles; the influence on normal operation caused by regular cleaning and maintenance is avoided. If dust particles enter from the gap between the nozzle shield and the nozzle, the dust particles can only remain on the upper surface of the sealing top plate and cannot enter the closed cavity.

Preferably, the nozzle is provided with an elastic plugging component for elastically plugging the air passage of the nozzle, so that mineral particles are prevented from entering the deep part of the air passage of the nozzle, and waste rocks or dust are prevented from entering the inner cavity of the valve body to damage the electromagnetic valve, thereby improving the practicability of the product; and when the nozzle works, the high-pressure airflow elastically compresses the elastic plugging component and then is sprayed out from the air passage of the nozzle so as to discharge waste rocks or dust in the air passage of the nozzle.

In another aspect, the invention provides a dry separator provided with the above-described blowing device for separating materials.

Due to the fact that the blowing device for sorting materials has the effect, the dry separator with the blowing device for sorting materials also has the corresponding technical effect.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

figure 1 is a front view of a prior art blowing device;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a schematic view of a prior art blowing shroud;

fig. 4 is an exploded view of a part of the structure of a blowing device for sorting materials according to an embodiment of the present invention;

fig. 5 is a partial structural schematic diagram of a blowing device for sorting materials according to an embodiment of the present invention;

figure 6 is a front view of a blowing device for sorting material according to an embodiment of the present invention;

FIG. 7 is a partial cross-sectional view taken at B-B of FIG. 6;

FIG. 8 is a schematic structural diagram of a dust removal assembly provided in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a dust removal assembly provided in an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a driving mechanism provided in an embodiment of the present invention;

FIG. 11 is a partial enlarged view of a drive wheel provided in accordance with an embodiment of the present invention;

FIG. 12 is an enlarged partial view of a driven wheel provided in accordance with an embodiment of the present invention;

FIG. 13 is an enlarged view of a portion of a dust catcher provided in accordance with an embodiment of the present invention;

FIG. 14 is an exploded view of a precipitator in accordance with an embodiment of the present invention;

figure 15 is a schematic structural view of a blowing assembly provided in an embodiment of the present invention;

figure 16 is a front view of the exterior of the nozzle shroud at the blowing assembly provided by an embodiment of the present invention;

FIG. 17 is a cross-sectional view taken at C-C of FIG. 16;

FIG. 18 is an enlarged view of a portion of FIG. 17 at D;

FIG. 19 is a schematic structural view of a nozzle provided in accordance with an embodiment of the present invention;

FIG. 20 is a cross-sectional view of a nozzle provided in accordance with an embodiment of the present invention;

fig. 21 is a schematic structural diagram of a dry separator provided in an embodiment of the present invention;

description of reference numerals:

1 '-nozzle, 2' -blowing shield, 3 '-guard plate, 4' -valve plate component, 5 '-mounting fixing seat and 6' -blowing cavity structure;

1-a blowing component, 11-a nozzle shield, 12-a nozzle, 121-a nozzle air passage, 122-an elastic plugging component, 1221-a plugging core, 1222-a fastening screw, 1223-a spring, 13-a blowing support, 14-a sealing top plate, 15-a sealing rubber strip, 16-a valve plate component, 2-a dust removal component, 21-a dust removal support, 22-a guide rail, 23-a dust remover, 231-a sliding block, 232-a toothed belt clamping block, 2321-an engagement clamping plate, 2322-a fixing clamping plate, 233-an air flow pipe, 234-a guide drag chain, 24-a driving mechanism, 241-a driving motor, 242-a driving wheel, 243-a driven wheel, 244-a transmission belt, 245-a tension adjusting component and 3-a shield; 10-blowing device, 101-lower blowing device, 102-upper blowing device, 20-detecting part, 30-conveying belt.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Blowing device embodiment:

referring to fig. 4 to 7, preferred structures of the blowing device for sorting materials according to the embodiment of the present invention are shown. As shown, the blowing device includes: the blowing component 1, the dust removal component 2 and the shield 3; wherein,

the blowing assembly 1 is used for jetting high-pressure air flow to hit low-grade waste rocks and/or surrounding rocks in the minerals, the motion trail of the low-grade waste rocks and/or the surrounding rocks is changed, and separation between the low-grade waste rocks and/or the surrounding rocks and the concentrate is achieved. Of course, the blowing assembly 1 can also be applied to sorting of other materials or other applicable occasions requiring blowing. In this embodiment, the top of the blowing assembly 1 (as viewed in the position shown in fig. 5) may be covered with a nozzle guard 11 for preventing debris or dust from falling into the interior of the blowing assembly 1, thereby reducing the extent to which the debris or dust affects the operational operation of the nozzle 12 and/or the solenoid valve. The cross section of the nozzle shield 11 may be a conical shell structure, and the top of the nozzle shield is provided with a plurality of discharge holes 111 which are in one-to-one correspondence with the blowing holes of the nozzle 12 and are arranged corresponding to the blowing holes so as to discharge the high-pressure air flow ejected by the nozzle 12.

The dust removal component 2 is arranged on the blowing component 1 and used for removing dust from waste rocks or dust deposited on the nozzle shield 11, for example, the waste rocks or dust deposited on the nozzle shield 11 can be blown or sucked, namely, positive-pressure blowing air flow is ejected to blow the waste rocks or dust, or negative-pressure suction air flow is ejected to suck the waste rocks or dust, so as to achieve the dust removal effect, avoid dust deposition on the nozzle shield 11, further avoid mineral particles and dust from entering the inside of the blowing component 1 and the inside of the nozzle 12 of the blowing component 1, and especially avoid the mineral particles and dust from entering the inside of the electromagnetic valve. The dust removing assembly 2 can be fixed on the blowing assembly 1 through a connecting piece such as a screw.

The shield 3 is arranged on the blowing assembly 1 and covers the dust removal assembly 2 and the blowing assembly 1. Specifically, the shield 3 may be covered on one side (the left side as shown in fig. 7) of the dust removal assembly 2 and the blowing assembly 1, and a side wall thereof may be flush with the housing of the blowing assembly 1, so as to provide a mounting and supporting surface of the blowing device in cooperation with the housing of the blowing assembly 1 as a whole, that is, a side wall (the left side as shown in fig. 4) of the housing of the blowing assembly 1 and the shield 3 are in pressing contact with the mounting and supporting frame of the blowing device, so as to achieve mounting and fixing of the blowing device. The shield 3 can also be fixed to the blowing assembly 1 by means of connecting elements such as screws. Meanwhile, the arrangement of the shield 3 can avoid the problem of ash accumulation of the nozzle shield at the top of the blowing assembly 1.

Referring to fig. 8 to 9, a preferred structure of the dust removing assembly provided by the embodiment of the invention is shown. As shown in fig. 4 to 9, the dust removing assembly 2 includes: the dust removing device comprises a dust removing support 21, a guide rail 22, a dust remover 23, a driving mechanism 24, a dust detector, a position detector and a controller; wherein,

the two dust removing supports 21 may be a left support and a right support, which are respectively disposed on the blowing assembly 1 and respectively located at the left and right sides (relative to the position shown in fig. 6) of the nozzle shield 11 to perform a supporting function, and may provide two fixed supporting points to support two ends of the guide rail 22, and may also support other components, such as the driving mechanism 24.

The guide rail 22 is provided along the longitudinal direction of the nozzle guard 11, and both left and right ends (with respect to the position shown in fig. 8) are fixedly connected to the left and right holders, respectively; in the present embodiment, there may be two guide rails 22 for slidably guiding the two sets of the dust collectors 23, respectively, and the two guide rails 22 are disposed on the left and right sides (with respect to the position shown in fig. 7) of the nozzle guard 11, respectively, for guiding the two sets of the dust collectors 23 disposed on the left and right sides of the nozzle guard 11, respectively, so that the dust collectors 23 slide in the longitudinal direction of the nozzle guard 11; of course, in this embodiment, the number of the guide rails 22 may be one, so as to guide the dust collectors 23 disposed on the same side, which is determined mainly according to the disposed positions and the sliding manners of the dust collectors 23, and this embodiment is not limited in any way.

The dust remover 23 is connected to the guide rail 22 in a sliding manner along the length direction of the guide rail 22 and is used for removing dust from waste rocks or dust deposited at different positions of the nozzle shield; the power output end of the driving mechanism 24 is connected with the dust remover 23 and is used for driving the dust remover 23 to slide along the length direction of the guide rail 22. Specifically, one or more dust collectors 23 may be provided, and a plurality of dust collectors are exemplified in the present embodiment; the plurality of dust collectors 23 may be divided into two groups to perform dust removing processing on both outer sidewalls of the nozzle guard 11 having a tapered cross-section, respectively. Of course, one dust remover 23 may be used, and the dust removing process may be performed on two outer side walls of the nozzle guard 11 by a moving method or the like, or may be performed on only one side (the right side as shown in fig. 7) facing away from the guard 3, or a plurality of dust removers 23 may be provided on one side facing away from the guard 3 to perform the dust removing process on one side or both sides of the nozzle guard 11, and in this embodiment, the number and arrangement manner of the dust removers 23 are not limited. To improve the dust removing effect, preferably, the plurality of dust collectors 23 may be divided into two groups, and are respectively disposed at two sides of the nozzle guard 11, that is, one group is disposed near the guard 3, and the other group is disposed far from the guard 3, so as to respectively perform dust removing treatment on two outer sidewalls of the nozzle guard 11 having a tapered cross section. The two sets of dust collectors 23 are slidably connected to the corresponding guide rails 22 along the length direction of the corresponding guide rails 22, so as to perform reciprocating linear motion along the length direction of the guide rails 22, and further slide to a position where waste rocks or dust are stored, so as to perform precise dust removal processing on the waste rocks or dust at the position.

Among them, the dust remover 23 (as shown in fig. 4, the left side) arranged near the shield 3 in the two sets of dust removers 23 is a negative pressure air suction type dust remover, and is used for ejecting negative pressure air suction flow to suck the waste stone or dust in the shield, if the air blowing type dust remover is adopted, the waste stone or dust flows along with the air blowing device under the action of ejecting positive pressure air blowing flow, the arrangement of the shield 3 may cause the waste stone or dust to collide with the shield 3, so that the shield 3 is deformed and damaged, even the waste stone or dust flies randomly under the rebound of the shield 3 and may fly into the blowing assembly 1; the other set of dust collectors 23 (right side as shown in fig. 4) is a positive pressure blowing nozzle type dust collector for spraying positive pressure blowing air flow to blow waste rocks or dust, and the dust can be directly blown to both sides under the action of the air flow without the cover of the shield 3, so that dust accumulation of the nozzle shield 11 is avoided.

The power output end of the driving mechanism 24 is connected with the dust remover 23 and is used for driving the dust remover 23 to slide along the length direction of the guide rail 22. Specifically, in the present embodiment, the driving mechanism 24 is described as an example of the sliding driving of the dust catcher 23, but it is needless to say that the driving mechanism 24 is not provided, and the position of the dust catcher 23 may be adjusted by manually sliding the dust catcher 23.

The nozzle guard 11 may be provided with a dust detector (not shown) for detecting whether waste rocks or dust exist on the nozzle guard; the nozzle shield 11 may further include a position detector connected to the dust detector for receiving a detection result of the dust detector, and determining a position of the waste rock or dust when the detection result indicates that the nozzle shield has the waste rock or dust; the controller is connected with the position detector and is used for receiving the position of the waste stone or dust confirmed by the position detector and controlling the driving mechanism 24 according to the position of the waste stone or dust so as to control the dust remover 23 to slide along the slide rail 22 to the position close to the waste stone or dust; the controller is also used for driving the corresponding dust remover 23 to perform dust removal treatment when the dust remover 23 slides to the position corresponding to the position of the waste stone or dust, so as to realize automatic dust removal. The position detector may adopt an infrared technology to perform the position of the waste rock or dust, for example, the position detector includes a plurality of sets of corresponding infrared emitting ends and infrared receiving ends, each infrared emitting end may be disposed on the nozzle shield 11, and each infrared receiving end may be disposed at a corresponding position of the corresponding infrared emitting end, when one or more infrared emitting ends are blocked by the waste rock or dust, the infrared receiving end corresponding to the infrared emitting end does not receive the infrared signal emitted by the infrared emitting end, which indicates that the waste rock or dust exists at the corresponding position of the infrared emitting end on the nozzle shield 11, and the infrared receiving end that does not receive the infrared signal determines the infrared emitting end corresponding to the infrared receiving end, and determines the position of the waste rock or dust accordingly.

Referring to fig. 10 to 12, a preferred structure of the driving mechanism provided by the embodiment of the present invention is shown. As shown, the drive mechanism 24 includes: a driving motor 241, a driving pulley 242, a driven pulley 243, a transmission belt 244 and a tension adjusting member 245; wherein, the driving wheel 242 is arranged at one side of the nozzle guard 11, and the driving wheel 242 is connected with the driving motor 241 for rotating under the driving of the driving motor 241; the driven wheel 243 is provided on the other side of the nozzle shroud 11; the transmission belt 244 may be a closed toothed belt, which is disposed on the outer periphery of the nozzle guard 11, and inner teeth of the transmission belt 244 are respectively engaged with the driving wheel 242 and the driven wheel 243 to drive the dust collector 23 to slide along the slide rail 22; the tension adjusting member 245 is connected to the driven pulley 243 for applying a driving force to the driven pulley 243 to drive the driven pulley 243 to move away from or against the driving pulley 242, thereby adjusting the tension of the transmission belt 244.

Specifically, the driving wheel 242 is rotatably connected to the right support, the driven wheel 243 is rotatably connected to the left support, and the driving motor 241 can be fixed to the right support, and the output shaft is connected to the driving wheel 242 to drive the driving wheel 242 to rotate, so as to drive the transmission belt 244 meshed with the driving wheel 242 and the driven wheel 243 to move, and synchronously drive the driven wheel 243 to move along with the driving motor 241, the driving wheel 242 and the transmission belt 244. To facilitate the adjustment of the tension of the transmission belt 244, it is preferable that the left support of the dust removing support 21 is provided with a tension adjusting member 245, which is connected to the driven wheel 243 for applying a driving force to the driven wheel 243 to drive the driven wheel 243 to move away from or against the driving wheel 242 for adjusting the tension of the transmission belt 244; the tension adjusting member 245 is slidably coupled in the waist-shaped hole of the left support in the arrangement direction of the driving belt 244, and the driven pulley 243 is rotatably coupled to the tension adjusting member 245 to move away from or toward the driving pulley 242 with the tension adjusting member 24 in the arrangement direction of the driving belt 244, thereby adjusting the tension of the driving belt 244.

In the present embodiment, the two sets of dust collectors 23 are respectively engaged with the belt segments of the transmission belt 244 disposed at both sides of the nozzle guard 11, that is, the transmission belt 244 can be divided into two segments by the driving pulley 242 and the driven pulley 243, and the traveling directions of the two segments are opposite; the two sets of dust collectors 23 are respectively meshed with the two belt sections, and the two sets of dust collectors 23 can synchronously and reversely slide.

Referring to fig. 13 to 14, there is shown a preferred structure of the dust collector provided by the embodiment of the present invention. As shown, the dust separator 23 includes: a slide block 231, a toothed belt clamping block 232, a spray head (not shown in the figure), an air flow pipe 233 and a guide drag chain 234; wherein,

the slider 231 is slidably attached to the guide rail 22. Specifically, the sliding block 231 is provided with an installation through hole penetrating through the guide rail 22 and slidably connected to the guide rail 22 along the length direction of the guide rail 22, so as to guide the sliding of the toothed belt clamping block 232 and drive the spray head arranged on the sliding block 231 to move along with the sliding.

The toothed belt clamping block 232 is arranged on the sliding block 231, the toothed belt clamping block 232 penetrates through the transmission belt 244, the meshing side of the toothed belt clamping block 232 is meshed with the inner teeth of the transmission belt 244, and the toothed belt clamping block 232 is used for driving the sliding block 231 to slide along the guide rail 22 under the action of the transmission belt 244 so as to drive the spray head to move. Specifically, the toothed belt clamping block 232 is provided with a clamping hole for penetrating and clamping on the transmission belt 244, one side of the pipe perforation is provided with meshing teeth and meshed with the inner teeth of the transmission belt 244 to form two meshed racks, and the other side of the pipe perforation is a plane and is in sliding contact with the back face of the transmission belt 244 opposite to the tooth side, so that under the meshing action of the meshing teeth and the inner teeth of the transmission belt 244, when the transmission belt 244 runs, the toothed belt clamping block 232 is driven to move along the moving direction of the transmission belt 244, and the sliding block 231 is driven to slide along the guide rail 22. The toothed belt clamping block 232 may be detachably connected to the sliding block 231 through a connecting member such as a bolt, or may be connected through another method.

The nozzle is provided on the slider 231 for ejecting a positive pressure blowing air flow to blow the waste rock or dust or ejecting a negative pressure blowing air flow to suck the waste rock or dust. Specifically, the nozzle may be disposed on the sliding block 231 or disposed in the sliding block 231 to move synchronously with the sliding block 231 under the action of the toothed belt clamping block 232, i.e., to perform a reciprocating linear motion along the length direction of the sliding rail 22, so as to perform a dust removal process on the crushed stones or dusts at different positions. The nozzle can spray positive pressure air blowing flow to blow waste rocks or dust, and can also spray negative pressure air suction flow to suck the waste rocks or dust, and the embodiment is not limited in any way. In this embodiment, the nozzles of the dust catcher 23 located near the side of the hood 3 can eject negative pressure air-suction flows to suck in the waste rocks or dust, and the nozzles of the dust catcher 23 located far from the side of the hood 3 can eject positive pressure air-suction flows to blow in the waste rocks or dust. The blowing force of the nozzle is adjusted through the air pipe pressure regulating valve, so that the normal blowing action of the nozzle 12 is not influenced, and the upper part of the nozzle 12 is ensured to be free of dust accumulation.

To improve the dust removing effect of the nozzle, it is preferable that an air flow pipe 233 is connected to the nozzle, one end of which communicates with the nozzle and the other end of which can be disposed on the outer wall of the nozzle guard 11 and can be disposed toward both ends of the nozzle guard 11 to spray positive pressure blowing air flow or negative pressure suction air flow toward both ends of the nozzle guard 11, so as to remove dust, and at the same time, to prevent crushed stones or dust from flowing toward the gap between the nozzle guard 11 and the nozzle 12 by the air flow, compared to other directions, such as toward the cone top of the cone structure.

In order to protect and pull the air flow pipe 233 to move synchronously with the nozzle, it is preferable that a guide drag chain 234 is provided on the outer circumference of the air flow pipe 233 to perform a pulling and protecting function. One end of the guiding drag chain 234 may be fixedly connected to the slider 231 and the other end may be a free end.

With continued reference to fig. 14, the toothed belt clamp block 232 includes: engaging the clamping plate 2321 and the fixing clamping plate 2321; the meshing clamp plate 2321 and the fixed clamp plate 2321 are butted and encircled to form clamping holes for clamping two sides of the transmission belt 244; the engagement jig 2321 is provided with engagement teeth toward an engagement side (the right side as viewed in fig. 14) of the fixed jig 2321, which engage with the internal teeth of the drive belt 244; the sliding side of the fixing plate 2321 toward the fixing plate 2321 (the left side as viewed in fig. 14) is a planar structure, which is in sliding contact with the outer wall of the drive belt 244. The engaging clamp 2321 and the fixing clamp 2321 may be detachably connected by a connecting member such as a bolt, or may be connected by other methods, which is not limited in this embodiment.

Referring to fig. 15 to 18, preferred structures of the blowing assembly provided by the embodiment of the present invention are shown. As shown, the blowing assembly 1 includes: a nozzle shield 11, a nozzle 12, a blowing support 13 and a sealing top plate 14; the blowing support 13 plays a supporting role and is an internal hollow shell with an opening at the top end; the sealing top plate 14 is arranged at the top of the blowing support 13, a closed cavity is formed between the sealing top plate 14 and the blowing support 13 in an enclosing mode, a valve plate assembly 16 is arranged in the closed cavity, the valve plate assembly 16 can be fixedly supported on the inner wall of the blowing support 13, and the valve plate assembly 16 comprises a valve plate and an electromagnetic valve arranged on the valve plate; the nozzle 12 may be disposed on the valve plate assembly 16 to be supported by the valve plate assembly 16; the nozzle 12 penetrates through the sealing top plate 14, the spraying part (the upper part shown in the figure 16) of the nozzle 12 is arranged outside the closed cavity, the nozzle protection cover 11 is arranged above the sealing top plate 14, the nozzle protection cover 11 and the sealing top plate 14 are arranged in a surrounding mode to form the spraying cavity, the spraying part of the nozzle 12 is covered outside the spraying part, namely, the spraying part of the nozzle 12 is located in the spraying cavity, gravel or dust is prevented from directly falling onto the outer wall of the nozzle 12, the nozzle 12 is protected primarily, and further gravel or dust falling onto the sealing top plate 14 and falling into the closed cavity is reduced. In order to further improve the sealing performance of the sealing top plate 14, it is preferable that a joint between the sealing top plate 14 and the nozzle 12 is provided with a sealing rubber strip 15 for sealing a joint gap between the sealing top plate 14 and the nozzle 12. In this embodiment, the setting of sealed roof 14 and joint strip 15 makes and forms the closed cavity in the subassembly 1 that jets, avoids in the mineral tiny particle promptly rubble, dust get into the closed cavity of subassembly 1 that jets, avoids regular clearance to maintain, influences normal operation. If dust particles enter from the gap between the nozzle shield 11 and the nozzle 12, the dust particles can only remain on the upper surface of the sealing top plate 14 and cannot enter the closed cavity. Meanwhile, both ends (left and right ends as shown in fig. 15) of the nozzle guard 11 are opened so that maintenance cleaning of the seal top plate 14 can be performed even without cleaning from both ends of the nozzle guard 11 by a high pressure air gun.

In this embodiment, the nozzle 12 may be designed integrally or separately, as shown in fig. 19, the nozzle includes a plurality of nozzle segments that are spliced together, and the joint of the nozzle segments at the joint position after the nozzle segments are assembled is provided with a sealant layer or a sealant sheet that can be coated with a sealant or adhered to the surface of the sealant sheet to seal the gap between the nozzle segments.

Referring to fig. 20, a cross-sectional view of a nozzle provided by an embodiment of the present invention is shown. As shown, the nozzle 12 is provided with a vertically arranged nozzle air passage 121, which is communicated with a valve plate cavity of the solenoid valve. Because the air passage of the nozzle is a direct air passage and is directly communicated with the cavity of the valve plate, when the spraying device is in a working process, when the nozzle air gun is in a state of waiting to spray, broken stones and dust are easy to enter the air passage of the nozzle, and the nozzle does not spray for a long time, so that the broken stones enter an air cavity of the electromagnetic valve, the normal opening of the valve core is influenced, and the electric control valve is easy to damage.

In order to prevent mineral particles, impurities, flying dust and the like from entering the inner cavity of the valve body communicated with the nozzle air passage 121 through the nozzle air passage 121 to damage the electric control valve, preferably, the nozzle 12 is provided with an elastic plugging component 122 for elastically plugging the nozzle air passage 121, so that the mineral particles are prevented from entering the deep part of the nozzle air passage 121, and waste rocks or dust is prevented from entering the inner cavity of the valve body to damage the electric control valve; when the nozzle 12 works, the high-pressure airflow elastically compresses the elastic plugging component 122 and then is ejected out of the nozzle air passage 121, so that waste rocks or dust in the nozzle air passage 121 can be discharged. The nozzle 12 is provided with a mounting through hole communicating with the nozzle air passage 121 at one side (left side in fig. 20) of the nozzle air passage 121, and the elastic blocking component 122 is disposed in the mounting through hole to be elastically blocked in the nozzle air passage 121 by an end portion.

With continued reference to fig. 20, the resilient plug assembly 122 includes: a core plug 1221, a fastening screw 1222 and a spring 1223; wherein, a fastening screw 1222 is arranged at the end (upper left end as shown in fig. 20) of the mounting through hole far away from the nozzle air passage 121, and can be fixedly connected to the nozzle 12 to realize the limit of the spring 1223. The plugging core 1221 is disposed at an end portion (lower right end as shown in fig. 20) of the mounting through hole close to the nozzle air passage 121, and the plugging core 1221 is slidably disposed in the mounting through hole, so that when an air gun of the nozzle 12 is in a state of waiting for blowing, the plugging core 1221 is slidably disposed in the nozzle air passage 121 to partially block the nozzle air passage 121, and when the nozzle 12 is in a blowing operation, the plugging core 1221 is slidably disposed in the mounting through hole to the whole under the pressing action of the high-pressure air flow. One end (the lower right end shown in fig. 20) of the spring 1223 is connected to the plug 1221, and the other end (the upper left end shown in fig. 20) is connected to the fastening screw 1222, so as to apply an elastic force to the plug 1221, so that the plug 1221 is at least partially elastically plugged in the nozzle air passage 121, and further, when the air gun of the nozzle 12 is in a ready-to-spray state, the plug 1221 plugs the nozzle air passage 121 under the action of the spring 1223, and prevents mineral particles from entering the deep part of the nozzle air passage 121; if the mineral particles enter the air passage 121 of the nozzle and are prevented from entering the inner cavity through the blocking core 1221, when the nozzle 12 works, high-pressure air flow is directly sprayed after the blocking core 1221 is compressed through the air inlet, and the mineral particles are timely discharged out of the air passage through the high-pressure air flow; after the air flow is sprayed, the blocking core 1221 is reset by the spring 1223, and the nozzle air passage 121 is blocked. In the present embodiment, the adjustment of the fastening screw 1222 facilitates the adjustment of the compression of the spring 1223, which greatly increases the service life of the elastic plugging component 122

In conclusion, the jetting device for sorting materials that this embodiment provided is through setting up dust removal component 2 on jetting subassembly 1 for carry out the dust removal processing to depositional barren rock or dust on nozzle guard 11, avoid laying dust on nozzle guard 11, and then avoid mineral granule, dust to get into the inside of jetting subassembly 1, still can avoid because mineral granule, dust get into the inside of the nozzle 12 of jetting subassembly 1 especially get into the valve body inner chamber and damage electric control valve.

In particular, the dust collector 23 of the dust collecting assembly 2 can slide along the length direction of the guide rail 22 to perform dust collecting treatment on waste rocks or dust deposited at different positions of the nozzle guard 11, and can also perform precise dust collection on the waste rocks or dust to prevent the waste rocks or dust from flying or flowing, thereby preventing the waste rocks or dust from entering the interior of the blowing assembly 1 again.

Furthermore, a sealing top plate 14 and a sealing rubber strip 15 are arranged at the opening part of the injection support 13 in the injection component 1, so that a closed cavity is formed in the injection component 1, mineral small particles, namely broken stones and dust, are prevented from entering the closed cavity of the injection component 1, and the performance of the electromagnetic valve is prevented from being influenced by the mineral small particles; the influence on normal operation caused by regular cleaning and maintenance is avoided. If dust particles enter from the gap between the nozzle shield 11 and the nozzle 12, the dust particles can only remain on the upper surface of the sealing top plate 14 and cannot enter the closed cavity.

Preferably, the nozzle 12 is provided with an elastic plugging component 122 for elastically plugging the nozzle air passage 121, so as to prevent mineral particles from entering the deep part of the nozzle air passage 121, prevent waste rocks or dust from entering the inner cavity of the valve body and damaging the electromagnetic valve, and further improve the practicability of the product; when the nozzle 12 works, the high-pressure airflow elastically compresses the elastic plugging component 122 and then is ejected out of the nozzle air passage 121, so that waste rocks or dust in the nozzle air passage 121 can be discharged.

Dry separator embodiment:

fig. 21 is a schematic structural diagram of a dry separator according to an embodiment of the present invention. As shown, the dry separator includes: the blowing device 10, the detecting unit 20, and the conveyor belt 30; wherein, the feed inlet is used for inputting minerals; the mineral is one of the materials; the conveyor belt 30 is used for receiving input minerals and conveying the minerals; the identification module 20 is arranged above the conveying belt 30 and is used for identifying different grades of ores in the ores through X-rays so as to identify whether the ores contain low-grade waste rocks and/or surrounding rocks; the blowing device 10 is arranged at one side of the identification module 20 and is used for removing low-grade waste rocks and/or surrounding rocks in the minerals identified by the identification module 20. The minerals are sequentially paved on the conveying belt 30, and the materials are conveyed through the conveying belt 30. The identification module 20 can identify the grade of the ore through X-ray transmission imaging to determine the mineral category on the conveyor belt 30 at the detection position of the identification module 20, namely, the mineral category belongs to the concentrate, the surrounding rock or the low-grade waste rock; of course, the identification module 20 may also display the identification of the grade of the mineral by other means such as infrared identification, and the present embodiment is not limited thereto. After the identification module 20 identifies the grade of the mineral at the detection position, the mineral is transported to the blowing device 10 along with the transportation belt 30, and the mineral is sorted by the blowing device 10. The blowing device 10 is mainly used for pre-throwing waste by an intelligent sorting machine, is used for a mineral separation link in mineral processing, and is used for blowing high-pressure airflow to hit low-grade waste rocks and/or surrounding rocks in minerals, so that the motion trail of the low-grade waste rocks and/or the surrounding rocks is changed, and the separation between the low-grade waste rocks and/or the surrounding rocks and concentrate is realized; the blowing devices 10 can be two, for example a lower blowing device 101 and an upper blowing device 102, respectively; the mineral sorting device is arranged above and below the original motion trail of minerals respectively, so that the minerals are shifted upwards or downwards, and further the minerals are sorted into three motion trails, and sorting of the three minerals is realized. Wherein the arrow direction in fig. 21 is the transport direction of the transport belt 30.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A blowing device for sorting material, comprising:

the blowing assembly comprises a blowing support, a sealing top plate, a nozzle and a nozzle shield; wherein the sealing top plate is arranged at the top of the blowing support; the spraying part of the nozzle is positioned in a spraying cavity surrounded by the nozzle shield and the sealing top plate; the nozzle comprises a vertically arranged nozzle air passage, and the nozzle shield is arranged at the spraying part of the nozzle and used for preventing waste rocks or dust from falling into the nozzle; the nozzle shield is of a shell structure with a conical cross section, and the top of the nozzle shield is provided with a discharge hole corresponding to the blowing hole of the nozzle so as to discharge high-pressure airflow sprayed by the nozzle;

the dust removal assembly is arranged on the nozzle shield and is used for carrying out dust removal treatment on waste rocks or dust deposited on the nozzle shield;

the protective cover is covered on the outer sides of the blowing assembly and the dust removal assembly;

the nozzle is provided with an elastic plugging component for elastically plugging a nozzle air passage of the nozzle, and when the nozzle works, high-pressure airflow elastically compresses the elastic plugging component and then is sprayed out of the nozzle air passage to discharge waste rocks or dust in the nozzle air passage; the elastic plugging assembly comprises: the plug core, the fastening screw and the spring; one end of the spring is connected with the plugging core, and the other end of the spring is connected with the fastening screw and used for applying elastic force to the plugging core so that the plugging core is elastically plugged in the nozzle air passage.

2. The blowing device for sorting materials of claim 1, wherein the dust extraction assembly comprises:

the dust removal support plays a supporting role;

the guide rail is arranged on the dust removal support along the length direction of the nozzle shield and is used for guiding the sliding of the dust remover;

the dust remover is connected to the guide rail in a sliding manner along the length direction of the guide rail and is used for removing dust from waste rocks or dust deposited at different positions of the nozzle shield;

and the power output end of the driving mechanism is connected with the dust remover and is used for driving the dust remover to slide along the length direction of the guide rail.

3. The blowing device for sorting materials of claim 2, wherein the dust remover comprises:

the sliding block is connected to the guide rail in a sliding mode;

the toothed belt clamping block is arranged on the sliding block, the toothed belt clamping block is arranged on a transmission belt of the driving mechanism in a penetrating mode, meshing teeth meshed with the inner teeth of the transmission belt are arranged on the meshing side of the toothed belt clamping block, and the toothed belt clamping block is used for driving the sliding block to slide along the guide rail under the action of the transmission belt;

and the spray head is arranged on the slide block and is used for spraying positive pressure air blowing flow to spray waste rocks or dust or spraying negative pressure air blowing flow to suck the waste rocks or dust.

4. The blowing device for sorting materials of claim 3,

the sprayer is connected with an airflow pipe, and a guide drag chain is arranged on the periphery of the airflow pipe to play a role in traction and protection.

5. The blowing device for sorting material of claim 2, wherein the drive mechanism includes:

a drive motor;

the driving wheel is arranged on one side of the nozzle shield, is connected with the driving motor and is driven by the driving motor to rotate;

a driven wheel disposed at the other side of the nozzle guard;

the transmission belt is arranged on the periphery of the nozzle shield, and inner teeth of the transmission belt are respectively meshed with the driving wheel and the driven wheel and used for driving the dust remover to slide along the guide rail;

and the tension adjusting piece is connected with the driven wheel and used for applying driving force to the driven wheel so as to drive the driven wheel to move away from or close to the driving wheel, and further adjust the tension of the transmission belt.

6. The blowing device for sorting materials of claim 2, wherein the dust extraction assembly further comprises:

a dust detector for detecting whether waste rocks or dust are present on the nozzle guard;

a position detector connected to the dust detector for receiving a detection result of the dust detector and confirming a position of the waste rock or dust when the detection result indicates that the nozzle guard has the waste rock or dust;

and the controller is connected with the position detector and used for receiving the position of the waste stone or dust confirmed by the position detector and controlling the driving mechanism according to the position of the waste stone or dust so as to control the dust remover to slide along the guide rail to the position close to the waste stone or dust.

7. The blowing device for sorting materials according to any one of claims 1 to 6, characterized in that a closed cavity is enclosed between the sealing top plate and the blowing support;

the nozzle penetrates through the sealing top plate, and the spraying part of the nozzle is arranged outside the sealed cavity and is positioned in a spraying cavity surrounded by the nozzle shield and the sealing top plate.

8. The blowing device for sorting materials of any one of claims 1 to 6, characterized in that:

the shield is covered on one side of the nozzle shield and one side of the dust removal assembly; the dust remover arranged at one side of the two groups of dust removers of the dust removal assembly, which is close to the protective cover, is a negative pressure air suction type dust remover and is used for ejecting negative pressure air suction airflow to suck waste rocks or dust in the protective cover; the other group of dust collectors are positive pressure blowing type dust collectors used for spraying positive pressure blowing air flow to spray waste rocks or dust.

9. A dry separator, characterized in that a blowing device for separating material according to any one of claims 1 to 8 is provided.