CN115258694A - Automatic powder feeding device and automatic powder feeding method for continuous mixing vehicle - Google Patents
Automatic powder feeding device and automatic powder feeding method for continuous mixing vehicle Download PDFInfo
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- CN115258694A CN115258694A CN202110471321.XA CN202110471321A CN115258694A CN 115258694 A CN115258694 A CN 115258694A CN 202110471321 A CN202110471321 A CN 202110471321A CN 115258694 A CN115258694 A CN 115258694A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
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Abstract
The invention provides an automatic powder feeding device and an automatic powder feeding method for a continuous mixing vehicle, which comprise a negative pressure suction nozzle, a powder conveying pipeline, a cyclone dust collector and a powder tank which are sequentially connected according to the conveying direction of powder, wherein the outlet end of the cyclone dust collector is communicated with one end of a dust-containing gas conveying pipeline, the other end of the dust-containing gas conveying pipeline is connected with a dust gas inlet of the negative pressure dust collector, the dust outlet of the negative pressure dust collector is connected with a rotary feeder, and the discharge port of the rotary feeder is connected with the powder conveying pipeline through an accelerating chamber; the box body of the negative pressure dust collector is connected with a vacuum pump, and the vacuum pump provides a negative pressure environment for the whole device. The full automation of the powdering process is realized, the traditional mode of powdering by workers or hoisting and powdering by blending persons is changed, the use of a crane is eliminated, the problems of dust dissipation and high-place operation in the powdering process are solved, the labor intensity of workers is reduced, and the powdering efficiency is improved.
Description
Technical Field
The invention belongs to the field of feeding mechanisms, and particularly relates to an automatic powder feeding device and an automatic powder feeding method for a continuous mixing vehicle.
Background
In recent years, a continuous mixing vehicle becomes standard configuration of fracturing construction, the continuous mixing vehicle can be used for online configuration of fracturing fluid in real time, the fracturing fluid is used along with the preparation, the fluid preparation link before fracturing is reduced, the construction time is greatly saved, and the continuous mixing vehicle plays an important role in unconventional energy development of compact oil gas and the like.
At present, the powder feeding of a blending vehicle still adopts manual operation or a crane is used for lifting powder materials such as guanidine gum, EM50 and the like to the upper part of a powder tank of the blending vehicle, and then the powder materials are poured into the powder tank of the blending vehicle by manually breaking a bag.
Disclosure of Invention
The invention aims to provide an automatic powder feeding device and an automatic powder feeding method for a continuous mixing vehicle, so as to overcome the technical defects.
In order to solve the technical problem, the invention provides an automatic powder feeding device for a continuous blending vehicle, which comprises a negative pressure suction nozzle, a powder conveying pipeline, a cyclone dust collector and a powder tank which are sequentially connected according to the conveying direction of powder, wherein the outlet end of the cyclone dust collector is communicated with one end of a dust-containing gas conveying pipeline, the other end of the dust-containing gas conveying pipeline is connected with a dust gas inlet of the negative pressure dust collector, the dust outlet of the negative pressure dust collector is connected with a rotary feeder, and the discharge port of the rotary feeder is connected with the powder conveying pipeline through an accelerating chamber;
the box body of the negative pressure dust collector is connected with a vacuum pump, and the vacuum pump provides a negative pressure environment for the whole device;
all the interfaces are hermetically connected.
Preferably, the negative pressure suction nozzle is of a hollow tubular structure, a plurality of air holes are distributed on the tube wall of the hollow tube, the tube bottom is used for inserting the powder pile, the tube opening of the tube bottom is in an oblique opening shape, the tube opening of the tube top is communicated with one end of the steel wire hose through a hoop, the other end of the steel wire hose is communicated with an air source interface of the acceleration chamber, and a material outlet of the acceleration chamber is communicated with the powder conveying pipeline.
Preferably, the negative pressure dust remover, the rotary feeder and the acceleration chamber are sequentially connected through flanges from top to bottom, wherein a dust outlet of the negative pressure dust remover is communicated with a feed inlet of the rotary feeder, and a discharge outlet of the rotary feeder is communicated with a material inlet of the acceleration chamber.
Furthermore, the tank body of the powder tank consists of an upper part and a lower part, wherein the upper half part is a cylindrical body, the lower half part is a conical body, the top of the cylindrical body is closed, and a cyclone dust collector is arranged in the center of the cylindrical body;
and along the conveying direction of the powder, a downstream pipe orifice of the powder conveying pipeline is provided with a vacuumizing joint, the vacuumizing joint extends into an inner cavity of the cyclone dust collector, and the axial center line of the vacuumizing joint is vertical to the axial center line of the cyclone dust collector.
Furthermore, the automatic powder feeding device for the continuous blending vehicle also comprises a skid-mounted support, the negative pressure dust remover, the rotary feeder and the acceleration chamber are all arranged in the skid-mounted support, and the dusty gas conveying pipeline and the powder conveying pipeline can be integrally lifted and transported along with the skid-mounted support;
the skid-mounted support is provided with a controller, and the rotary feeder, the negative pressure dust collector, the cyclone dust collector and the vacuum pump are electrically connected to the controller.
Preferably, the vacuum pump selects a roots vacuum pump with a silencer, a base frame of the roots vacuum pump is mounted on a shockproof rubber pad through a bolt, and the shockproof rubber pad is fixed on the skid-mounted support.
Further, still install air compressor in the sled dress support, air compressor's compressed air sweeps the powder in negative pressure dust remover and the rotatory feeder.
The invention also provides an automatic powdering method for the continuous mixing vehicle, which adopts the automatic powdering device for the continuous mixing vehicle, and the powdering method comprises the following steps:
conveying the powder bag to the position near an automatic powder feeding device for the continuous mixing vehicle, and mounting the powder tank on the continuous mixing vehicle;
the negative pressure suction nozzle is inserted into the powder bag;
starting a vacuum pump to enable the automatic powder feeding device to be in a negative pressure environment;
under the action of negative pressure, the negative pressure suction nozzle sucks and delivers powder and sequentially enters the powder tank through the acceleration chamber, the powder delivery pipeline and the cyclone dust collector, the powder settles along the tank wall of the powder tank, gas containing a small amount of dust rises into the cyclone dust collector after material-gas separation, then the gas is sucked into the negative pressure dust collector through the dust-containing gas delivery pipeline, secondary material-gas separation is carried out, the secondarily separated powder settles to the rotary feeder, the rotary feeder feeds the material to the acceleration chamber, the secondarily separated gas converges into the powder delivery pipeline after acceleration, meanwhile, the secondarily separated gas flows into the vacuum pump through the top of the negative pressure dust collector, and the vacuum pump discharges the gas;
the powder passes through a powder conveying pipeline and a dust-containing gas conveying pipeline to form a closed circulation flow.
Further, after the operation is finished, the air compressor is started, and the compressed air is used for blowing the powder in the negative pressure dust remover and the rotary feeder and the powder inside and outside the powder feeding device.
The invention has the following beneficial effects:
guanidine gum powder ton bag or pouch come the material after, move to near the whitewashed device, the artifical vacuum suction who utilizes roots vacuum pump to provide after breaking the bag evacuates powder jar, powder jar forms the negative pressure, insert the negative pressure suction nozzle in the powder bag, inhale the powder and send the powder jar on the blending vehicle to the powder, the whitewashed process is full automatic, the mode of traditional blending vehicle worker's powdering or hoist and mount powdering has been changed, cancel the crane and use, solve the powder in-process dust loss and the eminence operation problem, reduce workman intensity of labour, and improved the powdering efficiency.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic structural diagram of an automatic powdering device for a continuous mixing vehicle.
FIG. 2 is a top view of a skid-mounted bracket portion of an automatic powdering device for a continuous compounding machine.
Fig. 3 is a schematic view of the installation of the roots vacuum pump.
FIG. 4 is a flow chart of an automatic powdering method for a continuous compounding vehicle.
Description of reference numerals:
1. a negative pressure suction nozzle; 2. a steel wire hose; 3. an acceleration chamber; 4. a rotating feeder; 5. a negative pressure dust collector; 6. a cyclone dust collector; 7. a dusty gas delivery duct; 8. a vacuum pump; 9. an air compressor; 10. a controller; 11. an air line; 12. a powder delivery conduit; 13. a powder tank; 14. vacuumizing the joint; 15. a support is skid-mounted; 16. a shockproof rubber pad; 17. and (5) stacking the powder.
Detailed Description
The following description is given by way of example of the present invention and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
In the present invention, the upper, lower, left, and right in the drawings are regarded as the upper, lower, left, and right of the automatic powdering device for a continuous mixer vehicle described in the present specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the embodiment relates to an automatic powder feeding device for a continuous mixing vehicle, which comprises a negative pressure suction nozzle 1, a powder conveying pipeline 12, a cyclone dust collector 6 and a powder tank 13 which are sequentially connected in sequence according to the conveying direction of powder, wherein as shown in figure 1, the outlet end of the cyclone dust collector 6 is communicated with one end of a dust-containing gas conveying pipeline 7, the other end of the dust-containing gas conveying pipeline 7 is connected to a dust gas inlet of a negative pressure dust collector 5, a dust outlet of the negative pressure dust collector 5 is connected with a rotary feeder 4, a discharge hole of the rotary feeder 4 is connected to the powder conveying pipeline 12 through an accelerating chamber 3, a box body of the negative pressure dust collector 5 is connected with a vacuum pump 8, and the vacuum pump 8 provides a negative pressure environment for the whole device.
All the interfaces are hermetically connected.
The working principle or working process of the automatic powder feeding device for the continuous mixing vehicle is as follows:
guanidine gum powder ton bag or pouch come, move to and go up powder apparatus nearby, break the bag manually, utilize vacuum suction that vacuum pump 8 provide to vacuumize powder tank 13, form the negative pressure in the powder tank 13, form the powerful vacuum suction in the powder apparatus, insert the negative pressure suction nozzle 1 into the powder bag, the powder is sucked and sent to the powder tank 13 (the powder tank 13 carries on the hermetic treatment), enter tangential whirlwind while entering the powder tank 13, the powder subsides along the tank wall, after the maximum material gas separation (first separation), the air containing a small amount of dust rises to the cyclone 6, then is sucked into the negative pressure dust collector 5 through the dusty gas conveying pipe 7 and carries on the secondary material gas separation, the powder that the secondary separates out subsides to the rotatory feeder 4, the rotatory feeder 4 feeds to the acceleration chamber 3, converge into the powder conveying pipe 12 after accelerating, the gas that the secondary separates out flows into the vacuum pump 8 through the top of the vacuum pump 5 at the same time, 8 exhaust gas.
After vacuumizing, the powder tank 13 serves as a vacuum tank, in the vacuumizing process, air containing a small amount of powder enters the negative pressure dust collector 5 for separation, the separated powder enters the powder conveying pipeline 12 through the rotary feeder 4 to form a closed circulation flow, all the powder is utilized, and the part of the dotted line frame in the figure 4 is the closed circulation flow.
As shown in fig. 2, the vacuum pump 8 is connected to the vacuum cleaner 5 via an air line 11.
The negative pressure dust collector 5 consists of a conical metal shell and a combined cloth bag (cyclone and cloth bag), and has a compact structure and dust collection efficiency of 99.99 percent.
The rotary feeder 4 is used as a filter powder feeding device, quantitative feeding and air locking are carried out, the gap is small, air leakage is low, an air pumping chamber is arranged at the upper part, air generated by high-pressure leakage is introduced into an upper storage bin, and the falling of materials and the fluctuation of yield are prevented from being influenced by counter wind.
During operation, the cyclone dust collector 6 is connected with the powder tank 13 in a sealing mode, and the powder tank 13 adopts a mechanical sealing mode to ensure the lowest leakage amount.
The powdering device adopts explosion-proof configuration, and can meet the explosion-proof requirement of an oil and gas operation field.
The automatic powder feeding device for the continuous mixing vehicle is mainly used for conveying powder by adopting an air source and a rotary valve according to the basic principles of hydrodynamics and aerodynamics and in combination with a gas-solid two-phase flow theory and related subject knowledge of the particle science.
Second embodiment:
the embodiment relates to an automatic powder feeding device for a continuous mixing vehicle, which comprises a negative pressure suction nozzle 1, a powder conveying pipeline 12, a cyclone dust collector 6 and a powder tank 13 which are sequentially connected in sequence according to the conveying direction of powder, wherein as shown in figure 1, the outlet end of the cyclone dust collector 6 is communicated with one end of a dust-containing gas conveying pipeline 7, the other end of the dust-containing gas conveying pipeline 7 is connected to a dust gas inlet of a negative pressure dust collector 5, a dust outlet of the negative pressure dust collector 5 is connected with a rotary feeder 4, a discharge hole of the rotary feeder 4 is connected to the powder conveying pipeline 12 through an accelerating chamber 3, a box body of the negative pressure dust collector 5 is connected with a vacuum pump 8, and the vacuum pump 8 provides a negative pressure environment for the whole device.
As shown in fig. 1, the negative pressure suction nozzle 1 is a hollow tubular structure, the wall of the hollow tube is provided with a plurality of air holes, the bottom of the tube is used for inserting the powder pile 17, the mouth of the tube at the bottom of the tube is in an oblique mouth shape, the mouth of the tube at the top of the tube is connected to one end of the steel wire hose 2 through a hoop, the other end of the steel wire hose 2 is connected to an air source interface of the acceleration chamber 3, and a material outlet of the acceleration chamber 3 is connected to the powder conveying pipeline 12.
The inclined port end of the negative pressure suction nozzle 1 is inserted into the powder pile 17, so that the contact area of the negative pressure suction nozzle and powder can be increased, and the powder suction amount is increased.
The air holes on the hollow pipe are used for avoiding blockage in the powder suction process and keeping ventilation.
The steel wire hose 2 is used for adjusting the angle of the negative pressure suction nozzle 1.
Referring to fig. 1, the negative pressure dust collector 5, the rotary feeder 4 and the acceleration chamber 3 are sequentially connected through flanges from top to bottom, wherein a dust outlet of the negative pressure dust collector 5 is connected with a feed inlet of the rotary feeder 4, and a discharge outlet of the rotary feeder 4 is connected with a material inlet of the acceleration chamber 3.
The top-to-bottom layout can make the air containing a small amount of dust uniformly enter the acceleration chamber 3 under the combined action of the self-weight and the rotary feeder 4.
As shown in FIG. 1, the tank body of the powder tank 13 is composed of an upper part and a lower part, the upper half part is a cylindrical body, the lower half part is a conical body, the top of the cylindrical body is closed, a cyclone dust collector 6 is arranged in the center, and the powder conveyed by the cyclone dust collector is rotated and falls along the pipe wall of the powder tank 13 by using the vacuum pumping to realize the separation of powder and gas to the maximum extent.
Along the powder conveying direction, a downstream pipe orifice of the powder conveying pipeline 12 is provided with a vacuum-pumping joint 14, the vacuum-pumping joint 14 extends into the inner cavity of the cyclone dust collector 6, and the axial center line of the vacuum-pumping joint 14 is perpendicular to the axial center line of the cyclone dust collector 6, so as to ensure that the powder enters in a tangential cyclone manner.
In order to facilitate integral hoisting transportation, the automatic powder feeding device for the continuous blending vehicle further comprises a skid-mounted support 15, the negative pressure dust remover 5, the rotary feeder 4 and the acceleration chamber 3 are all installed in the skid-mounted support 15, and the dusty gas conveying pipeline 7 and the powder conveying pipeline 12 can be hoisted and transported integrally along with the skid-mounted support 15.
The skid-mounted support 15 is provided with a controller 10, the rotary feeder 4, the negative pressure dust collector 5, the cyclone dust collector 6 and the vacuum pump 8 are electrically connected to the controller 10, the controller 10 can control the automatic opening and closing of the above components, and the controller 10 can be a PLC or other controllers.
The vacuum pump 8 adopts a Roots vacuum pump with a silencer as an air source (investment saving, low maintenance rate and reliable operation), provides stable air volume and ensures strong vacuum suction.
In order to reduce the influence of vibration on the operation, a base frame of the Roots vacuum pump is mounted on a shockproof rubber pad 16 through bolts, and as shown in figure 3, the shockproof rubber pad 16 is fixed on the skid-mounted support 15.
An air compressor 9 is further installed in the skid-mounted support 15, compressed air of the air compressor 9 sweeps powder in the negative pressure dust collector 5 and the rotary feeder 4, after operation is completed, the air compressor 9 is started, and the compressed air is used for sweeping the powder in the negative pressure dust collector 5 and the rotary feeder 4 and powder inside and outside the powdering device.
Third embodiment
The embodiment provides an automatic powdering method for a continuous mixing vehicle, which adopts an automatic powdering device for a continuous mixing vehicle, and with reference to fig. 4, the powdering method comprises the following steps:
conveying the powder bag to the position near an automatic powder feeding device for the continuous mixing vehicle, and installing a powder tank 13 on the continuous mixing vehicle;
the negative pressure suction nozzle 1 is inserted into the powder bag;
starting a vacuum pump 8 to enable the automatic powder feeding device to be in a negative pressure environment;
under the action of negative pressure, the negative pressure suction nozzle 1 sucks and sends powder and sequentially enters the powder tank 13 through the acceleration chamber 3, the powder conveying pipeline 12 and the cyclone dust collector 6, the powder is settled along the tank wall of the powder tank 13, the gas containing a small amount of dust after material-gas separation rises into the cyclone dust collector 6, then the gas is sucked into the negative pressure dust collector 5 through the dust-containing gas conveying pipeline 7, secondary material-gas separation is carried out, the secondarily separated powder is settled to the rotary feeder 4, the rotary feeder 4 feeds the powder to the acceleration chamber 3 and converges into the powder conveying pipeline 12 after acceleration, meanwhile, the secondarily separated gas flows into the vacuum pump 8 through the top of the negative pressure dust collector 5, and the vacuum pump 8 discharges the gas;
the powder passes through the powder conveying pipeline 12 and the dust-containing gas conveying pipeline 7 to form a closed circulation flow.
According to the powder conveying direction, the automatic powder feeding device comprises a negative pressure suction nozzle 1, a powder conveying pipeline 12, a cyclone dust collector 6 and a powder tank 13 which are sequentially connected in sequence, as shown in figure 1, the outlet end of the cyclone dust collector 6 is communicated with one end of a dust-containing gas conveying pipeline 7, the other end of the dust-containing gas conveying pipeline 7 is connected into a dust gas inlet of the negative pressure dust collector 5, a dust outlet of the negative pressure dust collector 5 is connected with a rotary feeder 4, a discharge port of the rotary feeder 4 is connected into the powder conveying pipeline 12 through an accelerating chamber 3, a box body of the negative pressure dust collector 5 is connected with a vacuum pump 8, and the vacuum pump 8 provides a negative pressure environment for the whole device.
After the operation is completed, the air compressor 9 is started, the compressed air is used for blowing the powder in the negative pressure dust collector 5 and the rotary feeder 4 and the powder inside and outside the powder feeding device, specifically, the filter screens of the cyclone dust collector 6 and the negative pressure dust collector 5 are cleaned, meanwhile, the powder on the bearing of the rotary feeder 4 is cleaned, and the manual operation is reduced.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (9)
1. The automatic powder feeding device for the continuous mixing vehicle is characterized by comprising a negative pressure suction nozzle (1), a powder conveying pipeline (12), a cyclone dust collector (6) and a powder tank (13) which are sequentially connected according to the conveying direction of powder, wherein the outlet end of the cyclone dust collector (6) is communicated with one end of a dust-containing gas conveying pipeline (7), the other end of the dust-containing gas conveying pipeline (7) is connected to a dust gas inlet of the negative pressure dust collector (5), a dust outlet of the negative pressure dust collector (5) is connected with a rotary feeder (4), and a discharge hole of the rotary feeder (4) is connected to the powder conveying pipeline (12) through an accelerating chamber (3);
wherein the box body of the negative pressure dust remover (5) is connected with a vacuum pump (8), and the vacuum pump (8) provides a negative pressure environment for the whole device;
all the interfaces are hermetically connected.
2. The automatic powder feeding device for the continuous mixing vehicle according to claim 1, wherein the negative pressure suction nozzle (1) is a hollow tubular structure, the wall of the hollow tube is provided with a plurality of air holes, the bottom of the tube is used for inserting the powder pile (17), the opening of the bottom of the tube is in an oblique opening shape, the opening of the top of the tube is communicated with one end of the steel wire hose (2) through a clamping hoop, the other end of the steel wire hose (2) is communicated with an air source interface of the acceleration chamber (3), and a material outlet of the acceleration chamber (3) is communicated with the powder conveying pipeline (12).
3. The automatic powdering device for a continuous mixer truck according to claim 2, wherein the negative pressure dust collector (5), the rotary feeder (4) and the acceleration chamber (3) are sequentially connected through flanges in sequence from top to bottom, wherein a dust outlet of the negative pressure dust collector (5) is connected to a feed inlet of the rotary feeder (4), and a discharge outlet of the rotary feeder (4) is connected to a material inlet of the acceleration chamber (3).
4. The automatic powdering device for a continuous compounding vehicle according to claim 2, wherein the tank body of the powder tank (13) is composed of an upper part and a lower part, the upper half is a cylindrical body, the lower half is a conical body, wherein the top of the cylindrical body is closed, and a cyclone dust collector (6) is installed in the center;
and a vacuum-pumping joint (14) is arranged at the downstream pipe orifice of the powder conveying pipeline (12) along the conveying direction of the powder, the vacuum-pumping joint (14) extends into the inner cavity of the cyclone dust collector (6), and the axial center line of the vacuum-pumping joint (14) is vertical to the axial center line of the cyclone dust collector (6).
5. The automatic powder feeding device for the continuous mixing vehicle according to claim 3, further comprising a skid-mounted support (15), wherein the negative pressure dust collector (5), the rotary feeder (4) and the acceleration chamber (3) are all mounted in the skid-mounted support (15), and the dusty gas conveying pipeline (7) and the powder conveying pipeline (12) can be lifted and transported integrally along with the skid-mounted support (15);
a controller (10) is installed on the skid-mounted support (15), and the rotary feeder (4), the negative pressure dust collector (5), the cyclone dust collector (6) and the vacuum pump (8) are electrically connected to the controller (10).
6. The automatic powdering device for a continuous compounding vehicle according to claim 5, wherein the vacuum pump (8) is a roots vacuum pump having a muffler, the base frame of the roots vacuum pump is mounted to the vibration-proof rubber pad (16) by a bolt, and the vibration-proof rubber pad (16) is fixed to the skid-mounted bracket (15).
7. The automatic powdering device for a continuous compounding vehicle according to claim 5, wherein an air compressor (9) is further installed in the skid-mounted support (15), and compressed air from the air compressor (9) sweeps powder in the negative pressure dust collector (5) and the rotary feeder (4).
8. An automatic powdering method for a continuous mixing vehicle, characterized in that the automatic powdering device for a continuous mixing vehicle according to any one of claims 1 to 7 is used, and the powdering method is as follows:
conveying the powder bag to the position near an automatic powder feeding device for the continuous mixing vehicle, and installing a powder tank (13) on the continuous mixing vehicle;
the negative pressure suction nozzle (1) is inserted into the powder bag;
starting a vacuum pump (8) to enable the automatic powdering device to be in a negative pressure environment;
under the action of negative pressure, the negative pressure suction nozzle (1) sucks and sends powder, the powder sequentially passes through the acceleration chamber (3), the powder conveying pipeline (12) and the cyclone dust collector (6) and enters the powder tank (13), the powder is settled along the tank wall of the powder tank (13), gas containing a small amount of dust after material-gas separation rises into the cyclone dust collector (6), then the gas is sucked into the negative pressure dust collector (5) through the dust-containing gas conveying pipeline (7), secondary material-gas separation is carried out, the secondarily separated powder is settled to the rotary feeder (4), the rotary feeder (4) feeds the powder to the acceleration chamber (3), the accelerated powder is converged into the powder conveying pipeline (12), meanwhile, the secondarily separated gas flows into the vacuum pump (8) through the top of the negative pressure dust collector (5), and the vacuum pump (8) discharges the gas;
the powder passes through a powder conveying pipeline (12) and a dust-containing gas conveying pipeline (7) to form a closed circulation flow.
9. The automatic powdering method for a continuous compounding vehicle according to claim 8, wherein after completion of the operation, the air compressor (9) is started, and the powder in the negative pressure dust collector (5) and the rotary feeder (4) and the powder inside and outside the powdering device are purged with the compressed air.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110471321.XA CN115258694A (en) | 2021-04-29 | 2021-04-29 | Automatic powder feeding device and automatic powder feeding method for continuous mixing vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471321.XA CN115258694A (en) | 2021-04-29 | 2021-04-29 | Automatic powder feeding device and automatic powder feeding method for continuous mixing vehicle |
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| CN115258694A true CN115258694A (en) | 2022-11-01 |
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| CN202110471321.XA Pending CN115258694A (en) | 2021-04-29 | 2021-04-29 | Automatic powder feeding device and automatic powder feeding method for continuous mixing vehicle |
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