CN110763009A - Intermittent feeding device, and use method and application thereof - Google Patents
Intermittent feeding device, and use method and application thereof Download PDFInfo
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- CN110763009A CN110763009A CN201911094597.XA CN201911094597A CN110763009A CN 110763009 A CN110763009 A CN 110763009A CN 201911094597 A CN201911094597 A CN 201911094597A CN 110763009 A CN110763009 A CN 110763009A
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- conveying device
- end flange
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- driving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/32—Arrangement of devices for charging
- F27B7/3205—Charging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/26—Drives
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- General Engineering & Computer Science (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention provides an intermittent feeding device, which is sequentially provided with a storage bin, a discharging device and a conveying device along a feeding direction, wherein materials stored in the storage bin pass through the discharging device and fall into the conveying device, and the conveying device conveys the materials to a downstream working section; the blanking device comprises a transmission part, a telescopic blanking pipe and a sealing part, wherein one end of the telescopic blanking pipe is connected with the storage bin, and the other end of the telescopic blanking pipe is connected with the sealing part; the transmission part is used for driving the sealing element to move up and down so that the sealing element is separated from or butted with a feeding hole of the conveying device; the intermittent feeding device also comprises a transmission screw rod positioned below the conveying device, and the transmission screw rod is used for driving the conveying device to move along the transmission screw rod so as to push the discharge hole of the conveying device into or move out of a downstream working section. The invention is additionally provided with the blanking device, and the sealing element is driven to move up and down by the transmission part, so that intermittent feeding is realized.
Description
Technical Field
The invention belongs to the technical field of conveying equipment, relates to an intermittent feeding device, a using method and application thereof, and particularly relates to an intermittent feeding device used in cooperation with rotary kiln roasting, and a using method and application thereof.
Background
At present, the rotary kiln is widely used in many production industries such as building materials, metallurgy, chemical industry, environmental protection and the like, and mainly carries out mechanical, physical or chemical treatment on solid materials through rotary cylinder equipment. The feeding mode of the rotary kiln is generally the traditional feeding mode of the rotary kiln, and raw materials to be processed in a feeding pipe enter a feeding hole of the rotary kiln by virtue of material gravity.
CN204404767U discloses a rotary kiln body structure of forced feed, including the rotary kiln body, set up feeding mouth section and discharge gate section at rotary kiln body both ends respectively, and set up the inlet pipe at the feeding mouth section, the kiln body inner wall of feeding mouth section on be provided with the feed steel sheet in the spiral gradual shape, and be provided with the kiln tail retaining ring at the tip of feeding mouth section.
CN207702967U discloses rotary kiln feeding device, including the feed cylinder that is used for circulating the material, with the left end mouth fixed connection's of feed cylinder closing cap, locate the feed cylinder left end and opening ascending be used for the feed pan feeding mouth, locate the inside of feed cylinder and with the rotation axis of the coaxial line setting of feed cylinder, be fixed in be used for promoting the material mobile helical blade on the rotation axis, laminating cover in wearing parts on the helical blade working face, locate being used for of rotation axis left end drive rotation axis pivoted power component and locating the broken subassembly of rotation axis right-hand member, the right-hand member mouth of feed cylinder is equipped with the discharge gate.
CN209068972U discloses a rotary kiln feeding and pushing device, which is applied to a vanadium-based alloy rotary kiln production line and comprises a power mechanism, a piston push plate and a piston outer cylinder; the power mechanism comprises a motor, a transmission mechanism and a connecting rod, wherein the transmission mechanism comprises a turntable, a pin shaft and a swing rod; the rotary kiln comprises a rotary kiln tail, a rotary table, a pin shaft, a motor, a connecting rod, a piston push plate, a rotary kiln and a rotary kiln tail, wherein the rotary table is arranged at the outer side of the rotary kiln tail, the motor is sequentially connected with the rotary table and one end of the pin shaft, the other end of the pin shaft is rotatably connected with one end of the swing rod, the other end of the swing rod is connected with one end of the connecting rod, the connecting rod penetrates through the side wall of the rotary kiln tail and extends into the piston outer barrel, one end of the piston outer barrel is fixedly arranged in the side wall of the rotary kiln tail, and the other end of the piston outer.
When high-purity vanadium powder is calcined, there is a method of performing batch calcination in a rotary kiln. After roasting and deamination, the feeding end is lifted by taking the discharging end of the kiln body as a fulcrum, and the finished high-purity vanadium is discharged. And after the kiln body is reset, filling ammonium vanadate again and roasting for the next time. In the process, manual feeding is needed, and the production period is greatly prolonged.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an intermittent feeding device, a using method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides an intermittent feeding device, which is sequentially provided with a bin, a blanking device and a conveying device along a feeding direction, wherein materials stored in the bin pass through the blanking device and fall into the conveying device, and the conveying device conveys the materials to a downstream working section.
The blanking device comprises a transmission part, a telescopic blanking pipe and a sealing part, wherein one end of the telescopic blanking pipe is connected with the storage bin, and the other end of the telescopic blanking pipe is connected with the sealing part; the transmission part is used for driving the sealing element to move up and down so that the sealing element is separated from or butted with a feeding hole of the conveying device.
The intermittent feeding device also comprises a transmission screw rod positioned below the conveying device, and the transmission screw rod is used for driving the conveying device to move along the transmission screw rod so as to push the discharge hole of the conveying device into or move out of a downstream working section; when feeding is needed, the discharge hole of the conveying device is pushed into a downstream working section by the transmission screw rod, the transmission piece drives the sealing piece to move downwards to butt against the feed hole of the conveying device, and the telescopic blanking pipe is communicated with the stock bin and the conveying device; when the feeding is required to be blocked, the transmission part drives the sealing part to move upwards to be separated from the feeding hole of the conveying device, the conveying device is moved out of a downstream working section by the transmission screw rod, and the communication between the telescopic blanking pipe and the conveying device is cut off.
The invention improves the existing conveying device, adds the blanking device, and realizes automatic intermittent feeding to the downstream process according to the set running sequence by actuating mechanisms such as a transmission part, a telescopic blanking pipe, a sealing part and the like.
In the invention, the transmission screw rod is driven by a motor reducer, and the integral advance and exit reset of the conveying device are realized through the forward and reverse conversion.
As a preferable technical solution of the present invention, the conveying device is a screw conveyor.
Preferably, the feed inlet of the conveying device is of a funnel structure.
As a preferred technical scheme of the present invention, the blanking device includes an upper end flange and a lower end flange, a telescopic blanking pipe and at least one transmission member are disposed between the upper end flange and the lower end flange, the transmission member is used for driving the lower end flange to move up and down, the telescopic blanking pipe extends or shortens along with the lower end flange under the driving of the transmission member, and the sealing member is disposed on the bottom surface of the lower end flange.
Preferably, the two ends of the telescopic blanking pipe are detachably fixed on the upper end flange and the lower end flange.
Preferably, two ends of the telescopic blanking pipe are respectively fixed on the upper end flange and the lower end flange through bolts.
Preferably, both ends of the transmission member are detachably fixed on the upper end flange and the lower end flange.
Preferably, both ends of the transmission member are respectively fixed on the upper end flange and the lower end flange through bolts.
Preferably, the sealing element is detachably fixed on the bottom surface of the lower end flange.
Preferably, the sealing element is fixed on the bottom surface of the lower end flange through bolts.
Preferably, two transmission pieces are arranged between the upper end flange and the lower end flange, and the two transmission pieces are symmetrically arranged on two sides of the telescopic blanking pipe.
Preferably, the transmission member is a pneumatic cylinder or a hydraulic cylinder.
Preferably, the sealing element is a rubber sealing ring.
As a preferred technical scheme of the present invention, the transmission member includes an air pressure driving device, a two-position four-way solenoid valve, an air inlet pipeline and an air exhaust pipeline, two ends of a housing of the air pressure driving device are respectively and independently connected to the two-position four-way solenoid valve, and the two-position four-way solenoid valve is respectively and independently connected to the air inlet pipeline and the air exhaust pipeline.
Preferably, the pneumatic drive device comprises a cylinder and a piston assembly located inside the cylinder.
Preferably, the piston assembly comprises a piston and a piston rod, one end of the piston rod is connected with the piston, the other end of the piston rod is connected with the lower end flange, and the piston rod is driven by air pressure to reciprocate in the cylinder barrel so as to drive the lower end flange to move up and down.
Preferably, the piston rod is hinged with the lower end flange.
In the invention, the piston rod and the lower end flange are hinged, so that proper freedom degree is reserved, and the sealing element is convenient to butt-joint and seal with the feed inlet of the screw conveyor.
As a preferable technical solution of the present invention, the two-position four-way solenoid valve includes a stroke passage and a return passage inside.
Preferably, the stroke channel comprises a stroke intake passage and a stroke exhaust passage, the stroke intake passage is communicated with an intake pipeline and one end of the pneumatic driving device, the stroke exhaust passage is communicated with an exhaust pipeline and the other end of the pneumatic driving device, gas enters one end of the pneumatic driving device from the intake pipeline through the stroke intake passage, the gas drives the piston assembly to push out of the cylinder barrel to complete a stroke, and gas at the other end of the pneumatic driving device is exhausted from the exhaust pipeline through the stroke exhaust passage.
Preferably, the return passage comprises a return air inlet passage and a return exhaust passage, the return air inlet passage is communicated with the air inlet pipeline and one end of the pneumatic driving device, the return exhaust passage is communicated with the exhaust pipeline and the other end of the pneumatic driving device, air enters one end of the pneumatic driving device from the air inlet pipeline through the return air inlet passage, the air driving piston assembly is collected into the cylinder barrel to complete a return stroke, and air at the other end of the pneumatic driving device is exhausted from the exhaust pipeline through the return exhaust passage.
Preferably, the air inlet pipeline comprises an air inlet main pipe and an overflow branch pipe, the inlet end of the overflow branch pipe is connected to the air inlet branch pipe, the air inlet main pipe is provided with a ball valve, and the overflow branch pipe is provided with an overflow valve.
Preferably, the exhaust pipeline is provided with a relief valve.
In the invention, the ball valve arranged on the air inlet main pipe is mainly used for controlling the air inlet flow rate of an air source, and the speed of pushing out the cylinder barrel and the speed of receiving in the cylinder barrel of the piston rod are controlled by controlling the opening degrees of the overflow valve arranged on the exhaust pipeline and the overflow valve arranged on the overflow branch pipe.
As a preferable technical scheme of the invention, the intermittent feeding device further comprises a control module, and the control module is used for controlling the process of driving the screw rod to drive the conveying device and the process of driving the lower end flange to move up and down by the driving part.
In the invention, the operation process of the actuating mechanism is controlled by computer software, and automatic feeding is completed according to a set sequence, so that automation is completely realized, the working efficiency is improved, and the labor cost is saved.
In a second aspect, the present invention provides a method of using an intermittent feeding device as defined in the first aspect, said method comprising:
the method comprises the following steps that (I) a transmission part drives a sealing element to move downwards so that the sealing element is in butt joint with a feed port of a sealing conveying device, materials stored in a storage bin pass through a telescopic blanking pipe and fall into the conveying device, and the materials are conveyed to a downstream working section through the conveying device;
and (II) driving the sealing element to move upwards by the transmission member so that the sealing element is separated from the conveying device.
As a preferred technical scheme of the invention, the step (I) specifically comprises the following steps:
the transmission screw rod drives the conveying device to move until a discharge port of the conveying device is pushed into a downstream working section, the transmission part drives the lower end flange to move downwards to a preset low point position, the sealing piece arranged on the bottom surface of the lower end flange moves downwards until the lower end flange abuts against the feed port tightly, materials stored in the storage bin enter the conveying device through the telescopic discharging pipe and are conveyed into the downstream working section through the conveying device, and feeding is completed.
Preferably, step (ii) specifically comprises:
the transmission part drives the lower end flange to move upwards to a preset high point position, the sealing piece arranged on the bottom surface of the lower end flange moves upwards along with the lower end flange until the sealing piece is completely separated from the feeding hole, the transmission screw rod drives the conveying device to move until the discharging hole of the conveying device moves out of a downstream working section, and feeding is interrupted.
Preferably, the intermittent feeding is achieved by alternating steps (I) and (II).
Preferably, in the step (i) and the step (ii), the driving process of the driving screw rod and the driving process of the driving member are controlled by the control module.
In a third aspect, the invention provides application of the intermittent feeding device as described in the first aspect, wherein the intermittent feeding device is used for a batch rotary kiln roasting high-purity vanadium production system.
Illustratively, the intermittent feeding device provided by the invention is used for loading ammonium vanadate into a rotary kiln, and the loading process specifically comprises the following steps:
the rotary kiln is in a horizontal position in an initial state, a feed inlet of the conveying device is pushed to a discharging position (right below a discharge outlet of the storage bin) by the transmission screw rod, and at the moment, the discharge outlet of the conveying device extends into the rotary kiln. The telescopic blanking pipe is extended under the pushing of the piston rod, the piston rod pushes the lower end flange to move downwards, and the sealing element at the bottom of the lower end flange moves downwards until abutting against a feeding hole of the conveying device. Opening a bin bottom valve of the bin, forming a blanking channel by the bin, the telescopic blanking pipe and the spiral conveyor, and feeding the ammonium vanadate stored in the bin into a conveying device through the telescopic blanking pipe and conveying the ammonium vanadate into the rotary kiln through the conveying device;
(II) when the ammonium vanadate is required to be stopped to be filled into the rotary kiln, a bin bottom valve of the bin is closed, the telescopic blanking pipe is shortened under the pulling of the piston rod, the piston rod pulls the lower end flange to move upwards, and the sealing element arranged at the bottom of the lower end flange moves upwards along with the piston rod until the sealing element is completely separated from the feeding hole of the conveying device. The transmission screw rod returns the conveying device to the original position, the conveying device integrally exits from the rotary kiln, and the feeding process is finished.
(III) after the feeding is finished, carrying out high-temperature roasting deamination on ammonium vanadate in the rotary kiln, lifting the feed end of the rotary kiln after roasting to discharge a high-purity vanadium product, then dropping the rotary kiln to a horizontal position, and repeating the step (I) and the step (II).
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
The system refers to an equipment system, or a production equipment.
Compared with the prior art, the invention has the beneficial effects that:
the invention improves the existing conveying device, adds the blanking device, finishes automatic feeding according to the running sequence set by a computer through actuating mechanisms such as a transmission part, a telescopic blanking pipe, a sealing part and the like, and drives the sealing part to move up and down through the transmission part, thereby realizing intermittent feeding.
Drawings
FIG. 1 is a schematic structural diagram of an intermittent feeding device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an intermittent feeding device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a blanking device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a transmission according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a transmission according to an embodiment of the present invention;
wherein, 1-a storage bin; 2-a blanking device; 3-driving a screw rod; 4-a conveying device; 5-a feed inlet; 6-a rotary kiln; 7-upper end flange; 8-a transmission member; 9-telescopic blanking pipe; 10-a lower end flange; 11-a seal; 12-pneumatic drive means; 13-a second overflow valve; 14-a ball valve; 15-a first overflow valve; 16-two-position four-way solenoid valve.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In one embodiment, the invention provides an intermittent feeding device, as shown in fig. 1 and 2, a bin 1, a blanking device 2 and a conveying device 4 are sequentially arranged along a feeding direction, a material stored in the bin 1 passes through the blanking device 2 and falls into the conveying device 4, and the conveying device 4 conveys the material to a downstream working section. As shown in fig. 3, the discharging device 2 includes a transmission member 8, a flexible discharging pipe 9 and a sealing member 11, wherein one end of the flexible discharging pipe 9 is connected to the storage bin 1, and the other end is connected to the sealing member 11. The transmission piece 8 is used for driving the sealing piece 11 to move up and down so that the sealing piece 11 is separated from or abutted against the feeding hole 5 of the conveying device 4.
In the position state shown in fig. 1, when the sealing member 11 is butted with the feeding hole 5 of the conveying device 4, the telescopic blanking pipe 9 is communicated with the storage bin 1 and the conveying device 4, and the continuous feeding is completed. When the sealing member 11 is separated from the feed opening 5 of the conveying device 4, the communication between the telescopic blanking pipe 9 and the conveying device 4 is cut off, and the feeding is stopped as shown in the position state shown in fig. 2.
Further, in the present embodiment, a specific structure of the blanking apparatus 2 will be described in detail: as shown in fig. 3, the blanking device 2 comprises an upper end flange 7 and a lower end flange 10, a telescopic blanking pipe 9 and at least one transmission member 8 are arranged between the upper end flange 7 and the lower end flange 10, the two ends of the telescopic blanking pipe 9 and the two ends of the transmission member 8 can be detachably fixed on the upper end flange 7 and the lower end flange 10, the transmission member 8 is used for driving the lower end flange 10 to move up and down, the telescopic blanking pipe 9 can extend or shorten along with the lower end flange 10 under the driving of the transmission member 8, and the sealing member 11 can be detachably fixed on the bottom surface of.
Specifically, two ends of the telescopic blanking pipe 9 are fixed on the upper end flange 7 and the lower end flange 10 through bolts respectively, two ends of the transmission member 8 are fixed on the upper end flange 7 and the lower end flange 10 through bolts respectively, and the sealing member 11 is fixed on the bottom surface of the lower end flange 10 through bolts. As shown in fig. 3, two transmission members 8 are disposed between the upper end flange 7 and the lower end flange 10, and the two transmission members 8 are symmetrically disposed on two sides of the telescopic blanking pipe 9. The transmission part 8 adopts a pneumatic cylinder or a hydraulic cylinder, the sealing part 11 is a rubber sealing ring, and the conveying device 4 is a spiral conveyor.
Further, in the present embodiment, a specific structure of the transmission member 8 in the blanking device 2 will be described in detail:
as shown in fig. 4 and 5, the transmission member 8 includes a pneumatic driving device 12, a two-position four-way solenoid valve 16, an air inlet pipeline and an exhaust pipeline, and the connection relationship is as follows: two ends of a shell of the pneumatic driving device 12 are respectively and independently connected with a two-position four-way electromagnetic valve 16, and the two-position four-way electromagnetic valve 16 is respectively and independently connected with an air inlet pipeline and an exhaust pipeline.
The pneumatic driving device 12 includes a cylinder and a piston assembly disposed therein, and the piston assembly is driven to reciprocate vertically in the pneumatic cylinder by switching the operating state of the two-position four-way solenoid valve 16. The piston assembly specifically comprises a piston and a piston rod, one end of the piston rod is connected with the piston, the other end of the piston rod is hinged with the lower end flange 10, and the piston rod is driven by air pressure to reciprocate in the cylinder barrel so as to drive the lower end flange 10 to move up and down.
The two-position four-way solenoid valve 16 has a stroke passage and a return passage provided therein. As shown in fig. 4, the stroke intake passage is communicated with the intake pipe and the a end of the pneumatic driving device 12, the stroke exhaust pipe is communicated with the exhaust pipe and the B end of the pneumatic driving device 12, the gas enters the a end of the pneumatic driving device 12 from the intake pipe through the stroke intake passage, the gas drives the piston assembly to push out of the cylinder to complete a stroke, and the gas at the B end of the pneumatic driving device 12 is exhausted from the exhaust pipe through the stroke exhaust passage. The return passage includes a return air inlet passage and a return air outlet passage, as shown in fig. 5, the return air inlet passage is communicated with the air inlet pipeline and the B end of the pneumatic driving device 12, the return air outlet passage is communicated with the exhaust pipeline and the a end of the pneumatic driving device 12, air enters the B end of the pneumatic driving device 12 from the air inlet pipeline through the return air inlet passage, the air driving piston assembly is received in the cylinder to complete a return stroke, and air at the B end of the pneumatic driving device 12 is exhausted from the exhaust pipeline through the return air outlet passage.
It should be noted that fig. 4 and 5 show two different working states of the two-position four-way solenoid valve 16, which are not in a coexistence relationship, and the position of the two-position four-way solenoid valve 16 needs to be electromagnetically controlled to realize the switching between the different working states shown in fig. 4 or 5, further, if the two-position four-way solenoid valve 16 is in the working position shown in fig. 4, the piston assembly completes a piston motion process of one stroke, and when the working position of the two-position four-way solenoid valve 16 is switched to the working position shown in fig. 5 by the electromagnetic control, the piston assembly completes a piston motion process of one return stroke, and when the two different working positions shown in fig. 4 and 5 are alternately repeated, the continuous piston motion can be completed, so as to drive the lower flange 10 to move up and down.
The air inlet pipeline comprises an air inlet main pipe and an overflow branch pipe, the inlet end of the overflow branch pipe is connected into the air inlet branch pipe, a ball valve 14 is arranged on the air inlet main pipe, and a second overflow valve 13 is arranged on the overflow branch pipe. A first overflow valve 15 is arranged on the exhaust pipeline.
The intermittent feeding device also comprises a transmission screw rod 3 positioned below the conveying device 4, and the transmission screw rod 3 is used for driving the conveying device 4 to move along the transmission screw rod 3 so as to push the discharge hole of the conveying device 4 into or out of a downstream working section. The feed inlet 5 of the conveying device 4 is in a conical funnel structure, and the driving piece 8 drives the sealing piece 11 to move up and down so that the sealing piece 11 is separated from or tightly propped against the feed inlet 5.
The intermittent feeding device also comprises a control module, and the control module is used for controlling the process of driving the transmission screw rod 3 to transmit the conveying device 4 and the process of driving the lower end flange 10 to move up and down by the transmission part 8.
In another embodiment, the present invention provides a method of using the above intermittent feeding device, the method comprising:
the method comprises the following steps that (I) a transmission screw rod 3 drives a conveying device 4 to move until a discharge port of the conveying device 4 is pushed into a downstream working section, a transmission piece 8 drives a lower end flange 10 to move downwards to a preset low point position, a sealing piece 11 arranged on the bottom surface of the lower end flange 10 moves downwards along with the lower end flange until the lower end flange abuts against and abuts against a feed port 5 tightly, materials stored in a storage bin 1 enter the conveying device 4 through a telescopic discharging pipe 9 and are conveyed into the downstream working section through the conveying device 4, and feeding is;
(II) the transmission piece 8 drives the lower end flange 10 to move upwards to a preset high point position, the sealing piece 11 arranged on the bottom surface of the lower end flange 10 moves upwards until the sealing piece is completely separated from the feeding hole 5, the transmission screw rod 3 drives the conveying device 4 to move until the conveying device 4 integrally moves out of a downstream working section, and feeding is interrupted;
and (III) alternately carrying out the step (I) and the step (II) to realize intermittent feeding, and in addition, controlling the transmission process of the transmission screw rod 3 and the driving process of the transmission piece 8 through the control module in the step (I) and the step (II).
It should be noted that, in the present embodiment, the lower end flange 10 is driven to move up and down by the transmission member 8 shown in fig. 4 and 5, and the control process of the transmission member 8 driving the lower end flange 10 to move up and down is described in detail below with reference to fig. 4 and 5:
(1) when the two-position four-way solenoid valve 16 is located at the position shown in fig. 4, gas enters the end a of the pneumatic driving device 12 through the ball valve 14 arranged on the gas inlet pipeline through the stroke gas inlet passage, the gas drives the piston assembly to push out the cylinder barrel to complete one stroke, and the gas at the end B of the pneumatic driving device 12 flows through the first overflow valve 15 on the gas exhaust passage through the stroke gas exhaust passage and is exhausted;
(2) the position of the two-position four-way electromagnetic valve 16 is switched to the position shown in fig. 5 through electromagnetic control, gas enters the end B of the pneumatic driving device 12 through a return stroke gas inlet passage by a ball valve 14 arranged on a gas inlet pipeline, a gas driving piston assembly is collected into a cylinder barrel to reset to complete a return stroke, and the gas at the end A of the pneumatic driving device 12 flows through a first overflow valve 15 on a gas exhaust passage through a return stroke gas exhaust passage and is exhausted;
(3) the position of the two-position four-way solenoid valve 16 is repeatedly switched to complete the alternate operation of the stroke and the return stroke of the piston assembly, so that the lower end flange 10 is driven to move up and down.
Application examples
The method for loading ammonium vanadate into the rotary kiln 6 by adopting the intermittent feeding device provided by the specific embodiment specifically comprises the following steps:
in the initial state, the rotary kiln 6 is in a horizontal position, the transmission screw rod 3 pushes the feeding hole 5 of the conveying device 4 to a discharging position (right below the discharging hole of the storage bin 1), and at the moment, the discharging hole of the conveying device 4 extends into the rotary kiln 6. The telescopic blanking pipe 9 is extended under the pushing of the piston rod, the piston rod pushes the lower end flange 10 to move downwards, and the sealing element 11 at the bottom of the lower end flange 10 moves downwards until abutting against the feeding hole 5 of the tightly-pushing conveying device 4. Opening a bin bottom valve of the bin 1, forming a blanking channel by the bin 1, the telescopic blanking pipe 9 and the conveying device 4, and conveying ammonium vanadate stored in the bin 1 into the conveying device 4 through the telescopic blanking pipe 9 and into the rotary kiln 6 through the conveying device 4;
(II) when the ammonium vanadate is required to stop being filled into the rotary kiln 6, a bin bottom valve of the bin 1 is closed, the telescopic blanking pipe 9 is shortened under the pulling of the piston rod, the piston rod pulls the lower end flange 10 to move upwards, and the sealing element 11 arranged at the bottom of the lower end flange 10 moves upwards along with the piston rod until the sealing element is completely separated from the feeding hole 5 of the conveying device 4. The transmission screw rod 3 returns the conveying device 4 to the original position, the conveying device 4 integrally exits the rotary kiln 6, and the feeding process is finished.
(III) after the feeding is finished, carrying out high-temperature roasting deamination on ammonium vanadate in the rotary kiln 6, lifting the feeding end of the rotary kiln 6 after the roasting is finished, unloading a high-purity vanadium product, then dropping the rotary kiln 6 to a horizontal position, and repeating the step (I) and the step (II).
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. An intermittent feeding device is characterized in that a storage bin, a blanking device and a conveying device are sequentially arranged along a feeding direction, materials stored in the storage bin pass through the blanking device and fall into the conveying device, and the conveying device conveys the materials to a downstream working section;
the blanking device comprises a transmission part, a telescopic blanking pipe and a sealing part, wherein one end of the telescopic blanking pipe is connected with the storage bin, and the other end of the telescopic blanking pipe is connected with the sealing part; the transmission part is used for driving the sealing element to move up and down so that the sealing element is separated from or butted with a feeding hole of the conveying device;
the intermittent feeding device also comprises a transmission screw rod positioned below the conveying device, and the transmission screw rod is used for driving the conveying device to move along the transmission screw rod so as to push the discharge hole of the conveying device into or move out of a downstream working section; when feeding is needed, the discharge hole of the conveying device is pushed into a downstream working section by the transmission screw rod, the transmission piece drives the sealing piece to move downwards to butt against the feed hole of the conveying device, and the telescopic blanking pipe is communicated with the stock bin and the conveying device; when the feeding is required to be blocked, the transmission part drives the sealing part to move upwards to be separated from the feeding hole of the conveying device, the conveying device is moved out of a downstream working section by the transmission screw rod, and the communication between the telescopic blanking pipe and the conveying device is cut off.
2. An intermittent feeding device according to claim 1, wherein said conveying means is a screw conveyor;
preferably, the feed inlet of the conveying device is of a funnel structure.
3. An intermittent feeding device according to claim 1 or 2, wherein the blanking device comprises an upper end flange and a lower end flange, a telescopic blanking pipe and at least one transmission member are arranged between the upper end flange and the lower end flange, the transmission member is used for driving the lower end flange to move up and down, the telescopic blanking pipe extends or shortens along with the lower end flange under the driving of the transmission member, and the sealing member is arranged on the bottom surface of the lower end flange;
preferably, two ends of the telescopic blanking pipe are detachably fixed on the upper end flange and the lower end flange;
preferably, two ends of the telescopic blanking pipe are respectively fixed on the upper end flange and the lower end flange through bolts;
preferably, both ends of the transmission piece are detachably fixed on the upper end flange and the lower end flange;
preferably, two ends of the transmission piece are respectively fixed on the upper end flange and the lower end flange through bolts;
preferably, the sealing element is detachably fixed on the bottom surface of the lower end flange;
preferably, the sealing element is fixed on the bottom surface of the lower end flange through bolts.
4. An intermittent feeding device according to any one of claims 1-3, wherein two transmission members are arranged between the upper end flange and the lower end flange, and the two transmission members are symmetrically arranged at two sides of the telescopic blanking pipe;
preferably, the transmission part is a pneumatic cylinder or a hydraulic cylinder;
preferably, the sealing element is a rubber sealing ring.
5. An intermittent feeding device according to any one of claims 1-4, wherein the transmission member comprises a pneumatic driving device, a two-position four-way solenoid valve, an air inlet pipeline and an exhaust pipeline, two ends of a shell of the pneumatic driving device are respectively and independently connected with the two-position four-way solenoid valve, and the two-position four-way solenoid valve is respectively and independently connected with the air inlet pipeline and the exhaust pipeline;
preferably, the pneumatic driving device comprises a cylinder barrel and a piston assembly positioned inside the cylinder barrel;
preferably, the piston assembly comprises a piston and a piston rod, one end of the piston rod is connected with the piston, the other end of the piston rod is connected with the lower end flange, and the piston rod is driven by air pressure to reciprocate in the cylinder barrel so as to drive the lower end flange to move up and down;
preferably, the piston rod is hinged with the lower end flange.
6. An intermittent feeding device according to any one of claims 1-5, wherein the two-position four-way solenoid valve internally comprises a stroke passage and a return passage;
preferably, the stroke channel comprises a stroke air inlet passage and a stroke air outlet passage, the stroke air inlet passage is communicated with an air inlet pipeline and one end of the air pressure driving device, the stroke air outlet passage is communicated with an air outlet pipeline and the other end of the air pressure driving device, air enters one end of the air pressure driving device from the air inlet pipeline through the stroke air inlet passage, the air drives the piston assembly to push out of the cylinder barrel to complete a stroke, and air at the other end of the air pressure driving device is exhausted from the air outlet pipeline through the stroke air outlet passage;
preferably, the return channel comprises a return air inlet passage and a return air outlet passage, the return air inlet passage is communicated with an air inlet pipeline and one end of the air pressure driving device, the return air outlet passage is communicated with an air outlet pipeline and the other end of the air pressure driving device, air enters one end of the air pressure driving device from the air inlet pipeline through the return air inlet passage, the air driving piston assembly is collected into the cylinder barrel to complete a return stroke, and air at the other end of the air pressure driving device is exhausted from the air outlet pipeline through the return air outlet passage;
preferably, the air inlet pipeline comprises an air inlet main pipe and an overflow branch pipe, the inlet end of the overflow branch pipe is connected to the air inlet branch pipe, the air inlet main pipe is provided with a ball valve, and the overflow branch pipe is provided with an overflow valve;
preferably, the exhaust pipeline is provided with a relief valve.
7. An intermittent feeding device according to any one of claims 1-6, further comprising a control module for controlling the process of driving the screw rod to drive the conveying device and the process of driving the lower end flange to move up and down by the driving member.
8. A method of using an intermittent feeding device as defined in any one of claims 1 to 7, comprising:
the method comprises the following steps that (I) a transmission part drives a sealing element to move downwards so that the sealing element is in butt joint with a feed port of a sealing conveying device, materials stored in a storage bin pass through a telescopic blanking pipe and fall into the conveying device, and the materials are conveyed to a downstream working section through the conveying device;
and (II) driving the sealing element to move upwards by the transmission member so that the sealing element is separated from the conveying device.
9. The use according to claim 8, wherein step (i) comprises in particular:
the transmission screw rod drives the conveying device to move until a discharge port of the conveying device is pushed into a downstream working section, the transmission part drives the lower end flange to move downwards to a preset low point position, the sealing piece arranged on the bottom surface of the lower end flange moves downwards along with the lower end flange until the lower end flange abuts against the feed port tightly, and materials stored in the storage bin enter the conveying device through the telescopic blanking pipe and are conveyed into the downstream working section by the conveying device to finish feeding;
preferably, step (ii) specifically comprises:
the transmission part drives the lower end flange to move upwards to a preset high point position, the sealing piece arranged on the bottom surface of the lower end flange moves upwards along with the lower end flange until the sealing piece is completely separated from the feeding hole, the transmission screw rod drives the conveying device to move until the discharging hole of the conveying device moves out of a downstream working section, and feeding is interrupted;
preferably, the step (I) and the step (II) are alternately carried out to realize intermittent feeding;
preferably, in the step (i) and the step (ii), the driving process of the driving screw rod and the driving process of the driving member are controlled by the control module.
10. Use of the intermittent feeding device according to claims 1-7, wherein the intermittent feeding device is used in a batch rotary kiln roasting high-purity vanadium production system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094597.XA CN110763009A (en) | 2019-11-11 | 2019-11-11 | Intermittent feeding device, and use method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094597.XA CN110763009A (en) | 2019-11-11 | 2019-11-11 | Intermittent feeding device, and use method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902157A (en) * | 2021-01-26 | 2021-06-04 | 宁夏鑫尔特新能源有限公司 | Pulverized coal efficient catalytic combustion boiler and combustion catalysis method thereof |
| CN115368924A (en) * | 2022-09-07 | 2022-11-22 | 河南省科学院 | Large-scale living beings baking furnace charge-in system |
-
2019
- 2019-11-11 CN CN201911094597.XA patent/CN110763009A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902157A (en) * | 2021-01-26 | 2021-06-04 | 宁夏鑫尔特新能源有限公司 | Pulverized coal efficient catalytic combustion boiler and combustion catalysis method thereof |
| CN115368924A (en) * | 2022-09-07 | 2022-11-22 | 河南省科学院 | Large-scale living beings baking furnace charge-in system |
| CN115368924B (en) * | 2022-09-07 | 2023-11-03 | 河南省科学院 | Large-scale living beings baking furnace feed system |
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