CN112456154B - Sealing feeding method for sheet-shaped material - Google Patents
Sealing feeding method for sheet-shaped material Download PDFInfo
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- CN112456154B CN112456154B CN202011496165.4A CN202011496165A CN112456154B CN 112456154 B CN112456154 B CN 112456154B CN 202011496165 A CN202011496165 A CN 202011496165A CN 112456154 B CN112456154 B CN 112456154B
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- sealing device
- storage chamber
- movable sealing
- feeding
- air
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- 238000007789 sealing Methods 0.000 title claims abstract description 170
- 239000000463 material Substances 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims description 84
- 238000012545 processing Methods 0.000 claims description 14
- 239000003566 sealing material Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000013590 bulk material Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 241000883990 Flabellum Species 0.000 claims 2
- 239000008188 pellet Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002360 explosive Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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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
- B65G53/34—Details
- B65G53/36—Arrangements of containers
-
- 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
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
-
- 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
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
-
- 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
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/50—Pneumatic devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention discloses a sealing feeding method of a sheet material, which comprises the following steps: step S1: the first storage chamber is filled with materials, the first movable sealing device is opened, the first storage chamber is in an atmospheric environment, and the sheet materials enter the first storage chamber from the feed hopper; step S2: air replacement, namely replacing air in the first storage chamber and replacing the air with protective gas; step S3: feeding the material treatment equipment, opening a second movable sealing device, and enabling the blocky material to enter the material treatment equipment from a first storage chamber, wherein the first storage chamber is communicated with the material treatment equipment, and dangerous gas in the material treatment equipment enters the first storage chamber at the moment; step S4: the method comprises the steps that after dangerous gas in a first storage chamber is replaced, a second movable sealing device is closed after a piece-shaped material enters material treatment equipment from the first storage chamber, and the dangerous gas in the first storage chamber is replaced by protective gas; step S5: the steps of steps S1 to S5 are repeated cyclically.
Description
Technical Field
The invention relates to the field of sealed feeding, in particular to a sealing feeding method for a sheet material.
Background
Some of the pellet material processing apparatuses need to be performed in a high-temperature closed environment, and the gas in the apparatuses contains toxic, harmful, flammable and explosive gas left after material processing, so that in order to simplify the description, the toxic, harmful, flammable and explosive gas generated in the pellet material processing apparatuses is briefly described as dangerous gas, and the dangerous gas generated in the pellet material processing apparatuses hereinafter refers to the toxic, harmful, flammable and explosive gas, and the sealing feeding is used for preventing the dangerous gas in the material processing apparatuses from leaking through a feeding system, and simultaneously preventing external air from being inhaled into the material processing apparatuses through the feeding system, so that environmental pollution and even a malignant accident of the burning and explosion can be caused due to poor sealing effect of the sealing feeding.
The powder material density is high, if the powder material always keeps a certain material stacking height in the continuous feeding process, the feeding device is sealed by the high density property of the powder material, and the environment of equipment in the feeding device and the external environment are isolated, so that the effect of sealing feeding is achieved.
However, the gap rate between the materials is large, so that the sealing effect cannot be achieved by utilizing the density property of the materials, and sealing feeding can only be achieved through a feeding machine with a sealing function.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a sealing feeding method for a sheet material, which can realize high-temperature sealing feeding of the sheet material.
The technical scheme adopted by the embodiment of the invention is as follows: the sealing feeding method of the sheet material comprises the following steps: the feeding hopper is hollow; the gas supply device is used for supplying gas which does not react with materials and air; the connecting pipeline comprises a feed inlet and a discharge outlet, the feed inlet is communicated with the lower end of the feed hopper, and the discharge outlet is communicated with the material treatment equipment; the first movable sealing device is arranged on the connecting pipeline and can movably seal a channel of the connecting pipeline; the second movable sealing device is arranged on the connecting pipeline and is positioned between the first movable sealing device and the discharge hole, the second movable sealing device can movably seal the channel of the connecting pipeline, and the first movable sealing device, the second movable sealing device and the connecting pipeline between the first movable sealing device and the second movable sealing device form a first storage chamber; the first exhaust device comprises a first air inlet pipe and a first air outlet pipe, and the first air inlet pipe and the first air outlet pipe are communicated with the first storage chamber;
The feeding steps comprise:
Step S1: the first storage chamber is filled with materials, the first movable sealing device is opened, the first storage chamber is in an atmospheric environment, and the sheet materials enter the first storage chamber from the feed hopper;
Step S2: air replacement, namely replacing air in the first storage chamber and replacing the air with protective gas;
Step S21: when the material treatment equipment is positive pressure, the first air inlet pipe is opened, the first air outlet pipe is closed, the first air inlet pipe is filled with protective gas, air is discharged from the first movable sealing device port, air in the first material storage chamber is replaced by the protective gas, and after the air replacement is completed, the first air inlet pipe is closed, and the replacement of the gas is stopped;
Step S22: when the material treatment equipment is under negative pressure, after the blocky material enters the first storage chamber from the feed hopper, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced to replace air in the first storage chamber, and after the air replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S3: feeding the material treatment equipment, opening a second movable sealing device, and enabling the blocky material to enter the material treatment equipment from a first storage chamber, wherein the first storage chamber is communicated with the material treatment equipment, and dangerous gas in the material treatment equipment enters the first storage chamber at the moment;
step S4: the method comprises the steps that after dangerous gas in a first storage chamber is replaced, a second movable sealing device is closed after a piece-shaped material enters material treatment equipment from the first storage chamber, and the dangerous gas in the first storage chamber is replaced by protective gas;
Step S41: when the material treatment equipment is positive pressure, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced, so that dangerous gas in the first storage chamber is replaced by the protective gas, after replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S42: when the material processing equipment is under negative pressure, the first movable sealing device is opened, the first air inlet pipe is opened, the first air outlet pipe is opened, protective gas is introduced, and when the sheet-shaped materials enter the first material storage chamber, dangerous gas in the first material storage chamber is replaced by the protective gas, after the replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
step S5: the steps of steps S1 to S5 are repeated cyclically.
The sealing feeding method for the sheet material has at least the following beneficial effects:
1. The material enters the first storage chamber through the feed hopper, the air entering the blocky material is firstly removed in the first storage chamber through the first exhaust device, after the air removal is finished, the first movable sealing device is in a closed state, the second movable sealing device is opened and communicated with the equipment environment, the material enters the equipment in an airless manner, the first movable sealing device and the second movable sealing device seal the first storage chamber, the problem of sealing and feeding of the blocky material is solved, and no air leakage occurs in the feeding process;
2. After the feeding is completed, dangerous gas in the equipment environment enters the first storage chamber, the second movable sealing device is closed again, the dangerous gas is discharged through the first exhaust device, the dangerous gas is effectively isolated from the outside, the use is safer, and the sealing feeding of the sheet-shaped materials is realized simultaneously.
According to some embodiments of the invention, the device further comprises a third movable sealing device and a second exhaust device, wherein the third movable sealing device is arranged between the second movable sealing device and the discharge hole, the third movable sealing device can movably seal a channel of the connecting pipeline, a second storage chamber is formed between the third movable sealing device and the second movable sealing device, and the second storage chamber is communicated with the second exhaust device to replace gas in the second storage chamber.
According to some embodiments of the invention, the feeding device further comprises a feeding pipe and a push rod, wherein the side surface of the feeding pipe is communicated with the discharging hole, one end of the feeding pipe is communicated with the device, the push rod is slidably sleeved at the other end of the feeding pipe, and the push rod is used for pushing materials falling into the feeding pipe from the discharging hole into the device.
According to some embodiments of the invention, a sealing gasket is provided between the push rod and the feed tube to seal the feed tube.
According to some embodiments of the invention, the feeding device comprises a feeding device, a feeding device and a disc feeder, wherein the feeding device is arranged between the feeding device and the discharging device, the feeding device comprises a storage disc, fan blades and a power device, the top of the storage disc is communicated with the feeding device, the bottom of the storage disc is provided with a feeding port, the feeding port is communicated with the side face of the feeding pipe, the fan blades are arranged at the bottom of the storage disc and are in transmission connection with the power device, and rotate under the driving of the power device to push the material into the feeding port.
According to some embodiments of the invention, the fan blades are disposed at an angle to the bottom of the storage disc.
According to some embodiments of the invention, the first movable sealing device is a first pneumatic knife gate valve, the first pneumatic knife gate valve comprises a first gate plate, a first valve body and a first pneumatic device, the first gate plate is in transmission connection with the first pneumatic device so as to drive the first gate plate to open or close the first valve body, a soft sealing device is arranged on a contact surface of the first gate plate and the first valve body, and the soft sealing device is made of a flexible sealing material so as to seal the first valve body in a soft mode.
According to some embodiments of the invention, the second movable sealing device is a second pneumatic knife gate valve, the second pneumatic knife gate valve comprises a second gate plate, a second valve body and a second pneumatic device, the second gate plate is in transmission connection with the second pneumatic device so as to drive the second gate plate to open or close the second valve body, a first hard sealing device is arranged on a contact surface of the second gate plate and the second valve body, and the first hard sealing device is made of hard sealing materials so as to hard seal the second valve body.
According to some embodiments of the invention, the third movable sealing device is a third pneumatic knife gate valve, the third pneumatic knife gate valve comprises a third gate plate, a third valve body and a third pneumatic device, the third gate plate is in transmission connection with the third pneumatic device so as to drive the third gate plate to open or close the third valve body, a second hard sealing device is arranged on a contact surface of the third gate plate and the third valve body, and the second hard sealing device is made of a hard sealing material so as to seal the third valve body hard.
According to some embodiments of the invention, the shielding gas is nitrogen.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of a method of sealed feeding of a sheet material in accordance with an embodiment of the present invention;
FIG. 2 is a process flow diagram of a method for sealing and feeding a bulk material in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a first movable sealing device according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic view of a second movable sealing device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a disk feeder according to an embodiment of the present invention;
FIG. 7 is a schematic view of a feeding device according to an embodiment of the present invention;
FIG. 8 is a process flow diagram of a method for sealing and feeding a bulk material with a third movable sealing valve in accordance with an embodiment of the present invention.
Reference numerals:
100-feeding hopper;
200-connecting pipelines;
300-a first movable sealing device; 310-a first shutter; 320-a first valve body; 330-a first pneumatic device; 340-soft sealing means;
400-a second movable sealing device; 410-a second shutter; 420-a second valve body; 430-a second pneumatic device; 440-a first hard seal device;
500-a first storage chamber;
610-a first air inlet pipe; 620-a first outlet duct;
700-feeding device; 710-feeding tube; 720-push rod; 730-a sealing gasket;
800-a disc feeder; 810-a storage disc; 820-fan blades; 830-power plant; 840-a feed port.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Referring to fig. 1 and 2, in an embodiment of the present invention, a method for sealing and feeding a pellet material includes:
a feed hopper 100, wherein the feed hopper 100 is hollow;
The gas supply device is used for providing protective gas which does not react with materials and air; the shielding gas may be an inert gas such as nitrogen.
The connecting pipeline 200 comprises a feed inlet and a discharge outlet, the feed inlet is communicated with the lower end of the feed hopper 100, and the discharge outlet is communicated with the material treatment equipment;
The first movable sealing device 300 is arranged on the connecting pipeline 200, and the first movable sealing device 300 can movably seal a channel of the connecting pipeline 200;
The second movable sealing device 400 is arranged on the connecting pipeline 200 and is positioned between the first movable sealing device 300 and the discharge port, the second movable sealing device 400 can movably seal the channel of the connecting pipeline 200, and the first movable sealing device 300, the second movable sealing device 400 and the connecting pipeline 200 between the first movable sealing device 300 and the second movable sealing device form a first storage chamber 500;
The first exhaust device comprises a first air inlet pipe 610 and a first air outlet pipe 620, and the first air inlet pipe 610 and the first air outlet pipe 620 are communicated with the first storage chamber 500;
The feeding steps comprise:
Step S1: the first storage chamber is filled with materials, the first movable sealing device is opened, the first storage chamber is in an atmospheric environment, and the sheet materials enter the first storage chamber from the feed hopper;
Step S2: air replacement, namely replacing air in the first storage chamber and replacing the air with protective gas;
Step S21: when the material treatment equipment is positive pressure, the first air inlet pipe is opened, the first air outlet pipe is closed, the first air inlet pipe is filled with protective gas, air is discharged from the first movable sealing device port, air in the first material storage chamber is replaced by the protective gas, and after the air replacement is completed, the first air inlet pipe is closed, and the replacement of the gas is stopped;
Step S22: when the material treatment equipment is under negative pressure, after the blocky material enters the first storage chamber from the feed hopper, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced to replace air in the first storage chamber, and after the air replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S3: feeding the material treatment equipment, opening a second movable sealing device, and enabling the blocky material to enter the material treatment equipment from a first storage chamber, wherein the first storage chamber is communicated with the material treatment equipment, and dangerous gas in the material treatment equipment enters the first storage chamber at the moment;
step S4: the method comprises the steps that after dangerous gas in a first storage chamber is replaced, a second movable sealing device is closed after a piece-shaped material enters material treatment equipment from the first storage chamber, and the dangerous gas in the first storage chamber is replaced by protective gas;
Step S41: when the material treatment equipment is positive pressure, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced, so that dangerous gas in the first storage chamber is replaced by the protective gas, after replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S42: when the material processing equipment is under negative pressure, the first movable sealing device is opened, the first air inlet pipe is opened, the first air outlet pipe is opened, protective gas is introduced, and when the sheet-shaped materials enter the first material storage chamber, dangerous gas in the first material storage chamber is replaced by the protective gas, after the replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
step S5: the steps of steps S1 to S5 are repeated cyclically.
Specifically, the implementation process is as follows:
When the material treatment equipment is in positive pressure, firstly, the material is positioned in a feed hopper, at the moment, the first movable sealing device 300 and the second movable sealing device 400 are both in a closed state, the material enters the first storage chamber 500 by opening the first movable sealing device 300 and is intercepted by the closed second movable sealing device 400, the air brought by the material is replaced at the moment, the air is completely discharged through the first exhaust device, after the material completely enters and completes air replacement, the first movable sealing device 300 is closed, the second movable sealing device 400 is opened, the material enters the material treatment equipment, the problem of sealing and feeding of the blocky material is solved, and no air leakage occurs in the feeding process; and then the second movable sealing device 400 is closed, the gas in the first storage chamber is dangerous gas at the moment, the first exhaust device is opened to completely exhaust the dangerous gas, so that the dangerous gas is effectively isolated from the outside, and one feeding step is completed.
When the material treatment equipment is under negative pressure, firstly, the material is positioned in a feed hopper, at the moment, both the first movable sealing device 300 and the second movable sealing device 400 are in a closed state, the first movable sealing device 300 is opened to enable the material to enter the first storage chamber 500, after the material completely enters, the first movable sealing device 300 is closed, air entering the first storage chamber 500 is removed through the first exhaust device, the second movable sealing device 400 is opened and communicated with the equipment environment, the material enters the material treatment equipment in an airless sealing manner, the first movable sealing device 300 and the second movable sealing device 400 seal the first storage chamber 500, the problem of sealing and feeding of the sheet-shaped material is solved, and no air leakage occurs in the feeding process; after the feeding is completed, the dangerous gas in the equipment environment enters the first storage chamber 500, the second movable sealing device 400 is closed again, and the dangerous gas is discharged through the first exhaust device, so that the dangerous gas is effectively isolated from the outside, and one feeding step is completed. While the first venting device is venting the hazardous gas, the first movable sealing device 300 may be opened to begin the next feed, and the apparatus is in a negative pressure environment at this time, the hazardous gas may be vented from the first venting device without diffusing into the air.
Referring to fig. 1, in some embodiments of the present invention, the apparatus further includes a third movable sealing device and a second exhaust device, the third movable sealing device is disposed between the second movable sealing device 400 and the discharge port, the third movable sealing device is capable of movably sealing a channel of the connecting pipe 200, a second storage chamber is formed between the third movable sealing device and the second movable sealing device 400, the second storage chamber is in communication with the second exhaust device to replace gas in the second storage chamber, the second exhaust device includes a second air inlet pipe and a second air outlet pipe, and the second air inlet pipe and the second air outlet pipe are both in communication with the second storage chamber.
Specifically, after the material enters the first gas storage device, the first movable sealing device 300 is closed, the air in the first material storage chamber 500 is discharged once through the first exhaust device, the second movable sealing device 400 is opened, the material completely enters the second material storage chamber, the second movable sealing device 400 is closed, the third movable sealing device is opened, the material is thrown into the material processing equipment, at the moment, the second material storage chamber is communicated with the equipment environment, dangerous gas in the material processing equipment enters the second movable sealing device 400, after the material completely enters the material processing equipment, the third movable sealing device is closed, and the dangerous gas is completely discharged from the second material storage chamber through the second exhaust device, so that one feeding step is completed.
The first storage chamber 500 is used for completely discharging air, the second storage chamber is used for completely discharging dangerous gas, so that the air and the dangerous gas are isolated, and the use is safer without a mixed space.
Referring to fig. 1, in some embodiments of the present invention, the feeding device 700 further includes a feeding pipe 710 and a push rod 720, wherein a side surface of the feeding pipe 710 is communicated with the discharge port, one end of the feeding pipe 710 is communicated with the device, the push rod 720 is slidably sleeved at the other end of the feeding pipe 710, and the push rod 720 is used for pushing the material falling into the feeding pipe 710 from the discharge port into the device. So that material can be fed into the apparatus through the feeder 700.
Referring to fig. 1, in some embodiments of the present invention, a sealing gasket 730 is provided between the push rod 720 and the feeding tube 710 to ensure the sealability of the feeding tube 710. In the use process, dangerous gas in the material processing equipment is not easy to leak from the connection part of the feeding pipe 710 and the push rod 720, and the use is safer.
Referring to fig. 1, in some embodiments of the present invention, the apparatus further includes a disc feeder 800, where the disc feeder 800 is disposed between the discharge port and the feeding device 700, the disc feeder 800 includes a storage disc 810, fan blades 820 and a power device 830, the top of the storage disc 810 is connected to the discharge port, the bottom of the storage disc 810 is provided with a feeding port 840, the feeding port 840 is connected to a side surface of the feeding pipe 710, the fan blades 820 are disposed at the bottom of the storage disc 810, and are in transmission connection with the power device 830, and rotate under the drive of the power device 830 to push the material into the feeding port 840.
Specifically, uneven feeding of the intermittent negligence of the pellet materials is very easy to cause excessive accumulation of the pellet materials in the subsequent feeding device 700, the feeding device 700 is blocked, stop production is caused, and unstable working conditions are caused by uneven feeding, so that technological requirements are difficult to realize. The continuous rotation of the fan blades 820 makes the block materials in the material storage disc 810 intermittently and continuously enter the feeding device 700 through the feeding hole 840, so that the block materials can be continuously and uniformly sealed and fed, and the blocking phenomenon is prevented.
Referring to FIG. 1, in some embodiments of the invention, the fan blades 820 are disposed at an angle to the bottom of the storage disk 810.
Specifically, the fan blades 820 are disposed perpendicular to the bottom of the storage disk 810 to better agitate the material in the storage disk 810 so that it continuously and uniformly enters the feeding device 700.
Referring to fig. 1, in some embodiments of the present invention, the first movable sealing device 300 is a first pneumatic knife gate valve, where the first pneumatic knife gate valve includes a first gate plate 310, a first valve body 320 and a first pneumatic device 330, the first gate plate 310 is in driving connection with the first pneumatic device 330 to drive the first gate plate 310 to open or close the first valve body 320, a soft sealing device 340 is disposed on a contact surface between the first gate plate 310 and the first valve body 320, and the soft sealing device 340 is made of a flexible sealing material to soft seal the first valve body 320. The sealing effect of the flexible sealing material is better, but the flexible sealing material cannot withstand high temperature, and the first storage chamber 500 needs to isolate the external air, so that the sealing requirement is higher, and the flexible sealing device 340 needs to be used.
Referring to fig. 1, in some embodiments of the present invention, the second movable sealing device 400 is a second pneumatic knife gate valve, where the second pneumatic knife gate valve includes a second gate 410, a second valve body 420 and a second pneumatic device 430, the second gate 410 is in transmission connection with the second pneumatic device 430 to drive the second gate 410 to open or close the second valve body 420, a contact surface between the second gate 410 and the second valve body 420 is provided with a first hard sealing device 440, the first hard sealing device 440 is made of a hard sealing material, so as to hard seal the second valve body 420, the sealing effect of the hard sealing is inferior to that of the soft sealing, but can withstand high temperature, and can bake in a high temperature environment for a long time, and the second movable sealing device 400 isolates high temperature dangerous gas in the material processing apparatus, so that the service life of the first movable sealing device 300 is more durable.
Referring to fig. 1, in some embodiments of the present invention, the third movable sealing device is a third pneumatic knife gate valve, the third pneumatic knife gate valve including a third gate plate, a third valve body, and a third pneumatic device, the third gate plate being in driving connection with the third pneumatic device, the third valve body is driven to be opened or closed by the third flashboard, a second hard sealing device is arranged on the contact surface of the third flashboard and the third valve body, the second hard sealing device is made of a hard sealing material, the third valve body is hard sealed, the baking can be carried out for a long time in a high-temperature environment, and the service life is longer. Moreover, by the double hard sealing of the second movable sealing means 400 and the third movable sealing means, the dangerous gas of high temperature is isolated in the second storage chamber without contacting with the soft sealing means of the first movable sealing means 300, so that the service life of the first movable sealing means 300 is longer.
Of course, the present application is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present application, and these equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.
Claims (10)
1. A method of hermetically feeding a sheet material, comprising:
A feed hopper (100), wherein the feed hopper (100) is hollow; the gas supply device is used for providing protective gas which does not react with materials and air;
the connecting pipeline (200) comprises a feed inlet and a discharge outlet, the feed inlet is communicated with the lower end of the feed hopper (100), and the discharge outlet is communicated with the material treatment equipment;
the first movable sealing device (300) is arranged on the connecting pipeline (200), and the first movable sealing device (300) can movably seal a channel of the connecting pipeline (200);
The second movable sealing device (400) is arranged on the connecting pipeline (200) and is positioned between the first movable sealing device (300) and the discharge hole, the second movable sealing device (400) can movably seal a channel of the connecting pipeline (200), and the first movable sealing device (300), the second movable sealing device (400) and the connecting pipeline (200) between the first movable sealing device and the second movable sealing device form a first storage chamber (500);
The first exhaust device comprises a first air inlet pipe (610) and a first air outlet pipe (620), and the first air inlet pipe (610) and the first air outlet pipe (620) are communicated with the first storage chamber (500);
The feeding steps comprise:
Step S1: the first storage chamber is filled with materials, the first movable sealing device is opened, the first storage chamber is in an atmospheric environment, and the sheet materials enter the first storage chamber from the feed hopper;
Step S2: air replacement, namely replacing air in the first storage chamber and replacing the air with protective gas;
Step S21: when the material treatment equipment is positive pressure, the first air inlet pipe is opened, the first air outlet pipe is closed, the first air inlet pipe is filled with protective gas, air is discharged from the first movable sealing device port, air in the first material storage chamber is replaced by the protective gas, and after the air replacement is completed, the first air inlet pipe is closed, and the replacement of the gas is stopped;
Step S22: when the material treatment equipment is under negative pressure, after the blocky material enters the first storage chamber from the feed hopper, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced to replace air in the first storage chamber, and after the air replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S3: feeding the material treatment equipment, opening a second movable sealing device, and enabling the blocky material to enter the material treatment equipment from a first storage chamber, wherein the first storage chamber is communicated with the material treatment equipment, and dangerous gas in the material treatment equipment enters the first storage chamber at the moment;
step S4: the method comprises the steps that after dangerous gas in a first storage chamber is replaced, a second movable sealing device is closed after a piece-shaped material enters material treatment equipment from the first storage chamber, and the dangerous gas in the first storage chamber is replaced by protective gas;
Step S41: when the material treatment equipment is positive pressure, the first movable sealing device is closed, the first air inlet pipe is opened, the first air outlet pipe is opened, and protective gas is introduced, so that dangerous gas in the first storage chamber is replaced by the protective gas, after replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
Step S42: when the material processing equipment is under negative pressure, the first movable sealing device is opened, the first air inlet pipe is opened, the first air outlet pipe is opened, protective gas is introduced, and when the sheet-shaped materials enter the first material storage chamber, dangerous gas in the first material storage chamber is replaced by the protective gas, after the replacement is completed, the first air inlet pipe is closed, and the first air outlet pipe is closed;
step S5: the steps of steps S1 to S5 are repeated cyclically.
2. The method of sealed feeding of a sheet material according to claim 1, wherein: the device also comprises a third movable sealing device and a second exhaust device, wherein the third movable sealing device is arranged between the second movable sealing device (400) and the discharge hole, the third movable sealing device can movably seal the channel of the connecting pipeline (200), a second storage chamber is formed between the third movable sealing device and the second movable sealing device (400), and the second storage chamber is communicated with the second exhaust device so as to replace gas in the second storage chamber.
3. A method of sealed feeding of a sheet material according to claim 1 or 2, characterized in that: still include material feeding unit (700), material feeding unit (700) include conveying pipe (710) and push rod (720), the side of conveying pipe (710) with the discharge gate is linked together, the one end and the material treatment facility of conveying pipe (710) are linked together, push rod (720) slip cap are located the other end of conveying pipe (710), push rod (720) are in order will follow the discharge gate falls into in the material pushing equipment in conveying pipe (710).
4. A method of sealed feeding of a sheet material according to claim 3, wherein: a sealing gasket (730) is arranged between the push rod (720) and the feeding pipe (710) so as to seal the feeding pipe (710).
5. A method of sealed feeding of a sheet material according to claim 3, wherein: still include disc feeder (800), disc feeder (800) set up in the discharge gate with between material feeding unit (700), disc feeder (800) are including storage disc (810), flabellum (820) and power device (830), the top of storage disc (810) with the discharge gate is linked together, the bottom of storage disc (810) is equipped with feed inlet (840), feed inlet (840) with the side of feed pipe (710) is linked together, flabellum (820) set up in the bottom of storage disc (810) with power device (830) transmission is connected power device (830) drive is rotated down, will material in storage disc (810) is pushed into in feed inlet (840).
6. The method of sealed feeding of bulk material according to claim 5, wherein: the fan blades (820) are arranged at a certain angle with the bottom of the material storage disc (810).
7. A method of sealed feeding of a sheet material according to claim 1 or 2, characterized in that: the first movable sealing device (300) is a first pneumatic knife gate valve, the first pneumatic knife gate valve comprises a first flashboard (310), a first valve body (320) and a first pneumatic device (330), the first flashboard (310) is in transmission connection with the first pneumatic device (330), so as to drive the first flashboard (310) to open or close the first valve body (320), a soft sealing device (340) is arranged on the contact surface of the first flashboard (310) and the first valve body (320), and the soft sealing device (340) is made of a flexible sealing material to seal the first valve body (320) in a soft mode.
8. A method of sealed feeding of a sheet material according to claim 1 or 2, characterized in that: the second movable sealing device (400) is a second pneumatic knife gate valve, the second pneumatic knife gate valve comprises a second gate plate (410), a second valve body (420) and a second pneumatic device (430), the second gate plate (410) is in transmission connection with the second pneumatic device (430) so as to drive the second gate plate (410) to open or close the second valve body (420), a first hard sealing device (440) is arranged on the contact surface of the second gate plate (410) and the second valve body (420), and the first hard sealing device (440) is made of a hard sealing material so as to seal the second valve body (420) in a hard mode.
9. The method of sealed feeding of a sheet material according to claim 2, wherein: the third movable sealing device is a third pneumatic knife gate valve, the third pneumatic knife gate valve comprises a third flashboard, a third valve body and a third pneumatic device, the third flashboard is in transmission connection with the third pneumatic device so as to drive the third flashboard to open or close the third valve body, a second hard sealing device is arranged on the contact surface of the third flashboard and the third valve body, and the second hard sealing device is made of a hard sealing material so as to hard seal the third valve body.
10. A method of sealed feeding of a sheet material according to claim 1 or 2, characterized in that: the shielding gas is nitrogen.
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| CN113278761B (en) * | 2021-06-10 | 2024-05-14 | 大连重工机电设备成套有限公司 | Furnace iron adding and returning device for closed electric furnace |
| CN115092554A (en) * | 2022-06-08 | 2022-09-23 | 赣州赛可韦尔科技有限公司 | Vertical double-valve feeding bin equipment |
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