CN109081120A - A kind of production line and its technique for beneficiation reagent - Google Patents
A kind of production line and its technique for beneficiation reagent Download PDFInfo
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- CN109081120A CN109081120A CN201810743632.5A CN201810743632A CN109081120A CN 109081120 A CN109081120 A CN 109081120A CN 201810743632 A CN201810743632 A CN 201810743632A CN 109081120 A CN109081120 A CN 109081120A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 28
- 238000005303 weighing Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 42
- 239000007789 gas Substances 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 17
- 238000000227 grinding Methods 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000004992 fission Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 239000011344 liquid material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The present invention relates to a kind of production lines for beneficiation reagent, are made of powder material pipeline and liquid charging stock pipeline；Raw material processing at material is quickly transferred to each shots by closed conduit by the way of pneumatic conveying after finished product raw material, is avoided the problem of existing producer can only buy finished product raw material by the present invention, can be with with production, extensive storing.Liquid charging stock, powder material realize automatic weighing, condensation, conveying during transportation in the present invention, it replaces the mode by manually adding in the past, thus avoid the volatilization of liquid material, the problem of flow velocity crosses block or overflow, avoid the problems such as exploding caused by crossing block because of flow velocity, improve safety coefficient, it is most important that it can be preferably minimized the injury of environment and human body.
Description
Technical field
The present invention relates to beneficiation reagent field, especially a kind of production line and its technique for beneficiation reagent.
Background technique
The production that domestic universal beneficiation reagent production-line technique is old at present, equipment is extensive, workshop planning is chaotic, traditional
Process not only needs intensive labour, but also working efficiency is low, the degree of automation it is low, be not easy to the modernization pipe of enterprise
Reason；Powder material is easy to chemically react with air in process of production, and raw material is caused to fail, and producer again can not oneself processing
Raw material so finished product raw material can only be bought, but is unable to large scale storage finished product raw material again, causes to be unable to satisfy when necessary
The case where production.And liquid charging stock has severe toxicity and is easy quickly to evaporate into atmosphere, it is long-term so not only to the big of some areas
Gas brings pollution, most direct to influence to be to be easy to cause blindness in the employee of line production for a long time, give birth to and nerveous system
In addition the disease of system easily causes the safety accidents such as fire, explosion.Liquid charging stock must be launched precisely, and flow velocity cannot be excessively high,
Explosion is easily caused, once leakage, and environmental accident can be caused.
Summary of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement, provides a kind of production line for beneficiation reagent
And its blank was processed into after finished product raw material originally by increasing grinding machine and is delivered to materials by pneumatic transport equipment by technique
Point hangs the mode of material instead of manually unpacking, and prevents powder material and air from chemistry reflection occurs, and avoids causing environmental accident.
The technical solution adopted in the present invention is as follows:
A kind of production line for beneficiation reagent, is made of powder material pipeline and liquid charging stock pipeline；
The specific structure of the powder material pipeline is as follows:
Including the air accumulator controlled by power control cabinet, the air accumulator is by piping connection sending cans, in the sending cans
Feed end connects grinding machine storage hopper by cutting-off valve, the first scraper feeder, and the air accumulator passes through tracheae and multiple dedustings
The inlet end and company, the discharge end of the sending cans of device pass through the feed end of conveyance conduit and multiple receiver bins and company, each material feeding
The top in storehouse passes through deduster, stop valve and connects a dust removing tube jointly, and the dust removing tube is connect with air-introduced machine；Each receiver bin
Bottom by the second scraper feeder connection metering scraper feeder, the metering scraper feeder pass through batcher, scraper
Connect mixing machine；
The specific structure of the liquid charging stock pipeline is as follows:
Including raw material storage tank, the raw material storage tank is by pump, feeding conveyance conduit and connects multiple level meter measuring tanks, each liquid
The discharge end of measuring tank passes through metering conveyance conduit multiple mixing machines in parallel.
Its further technical solution is:
It further include reversal valve, the reversal valve is connected to by conveyance conduit with the feed inlet of deduster；
With the mixing machine and even each metering conveyance conduit on stop valve is also respectively set；
In on each mixing machine also pass through piping connection condenser；
Cooling device is set on the grinding machine of the grinding machine storage hopper, and the cooling device is condenser jacket.
The technique for carrying out beneficiation reagent production using the production line of beneficiation reagent, comprising the following steps:
Step 1: the liquid charging stock of buying is put into the inside of head tank, by pump and feeding conveyance conduit by liquid when production
Body feedstock transportation accurately calculates volume, weight by level meter measuring tank to the level meter measuring tank of production district；
Step 2: finished product powder material is sent into sending cans by the first scraper feeder, by pneumatic conveying by finished product
Powder material is delivered to each receiver bin；Gas into receiver bin passes through and is arranged by air hose by air-introduced machine after deduster dust removal and filtration
Out；
Step 3: finished product powder material, which enters after receiver bin, puts into metering for finished product raw material by the second scraper feeder
Scrapper conveyor；
It awaits orders step 4: the liquid charging stock after weighing is delivered to mixing machine by metering conveyance conduit under self gravity；
Step 5: metering scrapper conveyor is as required to the finished product raw material of the mixing machine amount of reordering；
Step 6: PLC judges whether to feed by mixing machine internal reaction temperature, hybrid electro machine curent change parameter,
If desired it feeds, then starts metering scraper feeder, batcher, scraper, wait after material is put into mixing machine, detect simultaneously
Mixing machine internal reaction temperature, hybrid electro machine curent change parameter judge whether to feed；Third step is returned after completing production；
Step 7: finished product product is transported to packaging by conveyer and is packed after mixing machine completes mixing.
Finished product fission raw material is conveyed using inertia cryogenic gas in the third step, the inertia cryogenic gas be through
Filtering oxygen gas component and the lower compressed gas of dioxide component, the temperature of inertia cryogenic gas are 2-10 DEG C.
Beneficial effects of the present invention are as follows:
The configuration of the present invention is simple, easy to use, the present invention is by Raw material processing at the side for using pneumatic conveying after finished product raw material
Material is quickly transferred to each shots by closed conduit by formula, avoids the problem of existing producer can only buy finished product raw material,
It can be with with production, extensive storing.
Liquid charging stock, powder material realize automatic weighing, condensation, conveying during transportation in the present invention, replace with
Toward by the mode manually added, thus avoid the volatilization of liquid material, flow velocity crosses block or overflow the problem of, avoid because of flow velocity mistake
Caused by block the problems such as explosion, safety coefficient is improved, it is most important that it can be preferably minimized the injury of environment and human body.
The present invention uses metering scraper feeder, is all made of in metering with the place of mixing to guarantee measuring accuracy
On the one hand liquid charging stock can be condensed into water droplet and continue reflux utilization by condensation structure by setting condenser pipe at mixing machine,
On the other hand can prevent its enter atmosphere polluted, while avoid because people for a long time at the scene contacting material due to bring hurt
Evil.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of powder material pipeline in the present invention.
Fig. 2 is the structural schematic diagram of liquid charging stock pipeline in the present invention.
Fig. 3 is the schematic diagram of liquid charging stock feeding in liquid charging stock pipeline, metering.
Fig. 4 is the schematic diagram of liquid charging stock, powder material mixing in the present invention.
Wherein: 1, air accumulator；2, power control cabinet；3, grinding machine storage hopper；4, the first scraper feeder；5, cutting-off valve；6, it sends out
Tank sending；7, conveyance conduit；8, tracheae；9, reversal valve；10, receiver bin；11, deduster；12, the first stop valve；13, dust removing tube；
14, the second scraper feeder；15, scraper feeder is measured；16, the second stop valve；17, batcher；18, scraper；19, it mixes
Machine；20, air-introduced machine；21, raw material storage tank；22, it pumps；23, feeding conveyance conduit；24, level meter measuring tank；25, conveyance conduit is measured；
26, return tank；27, third stop valve；28, condenser；29, return line.
Specific embodiment
Illustrate a specific embodiment of the invention below.
As shown in Figures 1 to 4, a kind of production line for beneficiation reagent is conveyed by powder material pipeline and liquid charging stock
Line is constituted；
As shown in Figure 1, the specific structure of powder material pipeline is as follows:
Including the air accumulator 1 controlled by power control cabinet 2, air accumulator 1 is by piping connection sending cans 6, in the charging of sending cans 6
End connects grinding machine storage hopper 3 by cutting-off valve 5, the first scraper feeder 4, the cooling dress of setting on the grinding machine of grinding machine storage hopper 3
It sets, cooling device is condenser jacket.Air accumulator 1 passes through tracheae 8 and the even inlet end of multiple dedusters 11, the discharge end of sending cans 6
It further include reversal valve 9, reversal valve 9 passes through and conveyance conduit 7 by the feed end of conveyance conduit 7 and multiple receiver bins 10 and company
It is connected to the feed end of each deduster 11.The top of each receiver bin 10 passes through deduster 11, the first connection jointly of stop valve 12
A piece dust removing tube 13, dust removing tube 13 are connect with air-introduced machine 20；The bottom of each receiver bin 10 is connected by the second scraper feeder 14
Scraper feeder 15 is measured, metering scraper feeder 15 connects mixing machine 19 by batcher 17, scraper 18；It is scraped above-mentioned second
The second stop valve 16 is arranged at plate batcher 14, metering scraper feeder 15.
In on each mixing machine 19 also pass through piping connection condenser 28.Cooling device and condensation are housed at above-mentioned mixing machine 19
The temperature raising when the powder material and liquid charging stock hybrid reaction in above-mentioned mixer 19 of device 28 can generate steam, high-temperature steam
It is extracted out through condenser 28 side by side to atmosphere by induced duct, but since steam is less, during rising through condenser 28
It will be condensed into droplet, be back to mixer 19 again after condensing into water droplet, so on the one hand continued with liquid charging stock, second
It is to prevent it from entering atmosphere pollution environment；Most important effect is to make mixing machine generation negative pressure will not when powder feed mouth is opened
Increase from feed opening steam, avoids and feed inlet is caused to block.
The specific structure of liquid charging stock pipeline is as follows:
Including raw material storage tank 21, raw material storage tank 21 passes through pump 22, feeding conveyance conduit 23 and connects multiple level meter measuring tanks 24,
The discharge end of each level meter measuring tank 24 passes through the multiple mixing machines 19 in parallel of metering conveyance conduit 25.With mixing machine 19 and even it is each
Third stop valve 27 is also respectively set on root metering conveyance conduit 25.Also pass through in the above-mentioned level meter measuring tank 24 positioned at tail portion
Return line 29 connects return tank 26.
During charging, the material that metering scraper feeder 15 is released is sent into mixing machine 19 through batcher 17, on mixing machine
Add scraper 18, scraper 18 and batcher 17 operate together, the material of feed inlet cleaned out, and prevent residual material hardened, block up
Filling in material mouth influences production.
Using above-mentioned beneficiation reagent production line carry out beneficiation reagent technique the following steps are included:
Step 1: the liquid charging stock of buying is put into the inside of head tank 21, when production by pump 22 and
Liquid charging stock is delivered to the level meter measuring tank 24 of production district by feeding conveyance conduit 23, passes through level meter
Measuring tank 24 accurately calculates volume, weight；
The powder embryo material of outsourcing is processed as finished product powder material by grinding machine, and grinding machine drops in when processing
Temperature processing guarantees that finished product material quality, the finished product raw material processed are stored in storage hopper 3, and right
The finished product original powder material is cooled down and is completely cut off atmospheric treatment, can be saved for a long time.
Step 2: finished product powder material is sent into sending cans 6 by the first scraper feeder 4, pass through
Finished product powder material is delivered to each receiver bin 10 by pneumatic conveying；Gas into receiver bin passes through dedusting
Device is discharged by air hose 13 by air-introduced machine 20 after filtering except 11 dirt；
It 8, will be at by the second scraper feeder 14 step 3: finished product powder material enters after receiver bin 10 as needed
Product raw material puts into metering scraper feeder 15；Finished product fission raw material is carried out using inertia cryogenic gas in the third step defeated
It send, the inertia cryogenic gas is by filtering oxygen gas component and the lower compressed gas of dioxide component, inertia low temperature gas
The temperature of body is 2-10 DEG C.
Step 4: the liquid charging stock after weighing is delivered under self gravity by measuring conveyance conduit 25
Mixing machine 19 is awaited orders；
Step 5: metering scraper feeder 15 is as required to the finished product raw material of 19 amount of reordering of mixing machine；
Step 6: PLC is joined by 19 internal reaction temperature of mixing machine, hybrid electro machine curent change
Number judges whether to feed, and if desired feeds, then starts metering scraper feeder 15, batcher 17, scrapes
Knife 18 continues waiting for after material is put into mixing machine 19, while detecting mixing machine internal-response
Temperature, hybrid electro machine curent change parameter judge whether to feed；Third step is returned after completing production；
Step 7: mixing machine 19 complete mixing after, by conveyer finished product product be transported to packaging into
Row packaging.
The configuration of the present invention is simple, easy to use, the present invention is by Raw material processing at the side for using pneumatic conveying after finished product raw material
Material is quickly transferred to each shots by closed conduit by formula, avoids the problem of existing producer can only buy finished product raw material,
It can be with with production, extensive storing.
Liquid charging stock, powder material realize automatic weighing, cooling, conveying during transportation in the present invention, replace with
Toward the mode by manually adding, the volatilization of liquid material is thus avoided, environment is protected, more directly personnel can be avoided to exist for a long time
The personal injury that live contacting material bring is infertile, nervous system is downright bad, moreover it is possible to avoid crossing because of flow velocity quick-fried caused by block
The problems such as fried, improve safety coefficient.
The present invention uses metering scraper feeder, is all made of in metering with the place of mixing to guarantee measuring accuracy
On the one hand liquid charging stock can be condensed into water droplet and continue reflux utilization by condensation structure by setting condenser pipe at mixing machine,
On the other hand it can prevent from it from entering atmosphere to be polluted.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to basic structure of the invention.
Claims (7)
1. a kind of production line for beneficiation reagent, it is characterised in that: by powder material pipeline and liquid charging stock pipeline structure
At；
The specific structure of the powder material pipeline is as follows:
Including the air accumulator (1) controlled by power control cabinet (2), the air accumulator (1) is by piping connection sending cans (6), described
The feed end of sending cans (6) passes through cutting-off valve (5), the first scraper feeder (4) connection grinding machine storage hopper (3), the gas storage
Tank (1) passes through delivery pipe by the inlet end and company, the discharge end of the sending cans (6) of tracheae (8) and multiple dedusters (11)
The feed end of road (7) and multiple receiver bins (10) and company, the top of each receiver bin (10) pass through deduster (11), stop valve
(12) a piece dust removing tube (13) of connection, the dust removing tube (13) connect with air-introduced machine (20) jointly；The bottom of each receiver bin (10)
Metering scraper feeder (15) is connected by the second scraper feeder (14), the metering scraper feeder (15) passes through batcher
(17), scraper (18) connection mixing machine (19)；
The specific structure of the liquid charging stock pipeline is as follows:
Including raw material storage tank (21), the raw material storage tank (21) is by pump (22), feeding conveyance conduit (23) and connects multiple liquid
The discharge end of measuring tank (24), each level meter measuring tank (24) passes through metering conveyance conduit (25) multiple mixing machines (19) in parallel.
2. a kind of production line for beneficiation reagent as described in claim 1, it is characterised in that: further include reversal valve (9), institute
Reversal valve (9) are stated to be connected to by conveyance conduit (7) with the feed inlet of deduster (11).
3. a kind of production line for beneficiation reagent as described in claim 1, it is characterised in that: with the mixing machine (19)
And stop valve (27) are also respectively set on each metering conveyance conduit (25) even.
4. a kind of production line for beneficiation reagent as described in claim 1, it is characterised in that: on each mixing machine (19) also
Pass through piping connection condenser (28).
5. a kind of production line for beneficiation reagent as described in claim 1, it is characterised in that: the grinding machine storage hopper (3)
Grinding machine on cooling device is set, the cooling device is condenser jacket.
6. the technique for carrying out beneficiation reagent production using the production line of beneficiation reagent described in claim 1, comprising the following steps:
Step 1: the liquid charging stock of buying is put into the inside of head tank, by pump and feeding conveyance conduit by liquid original when production
Material is delivered to the level meter measuring tank of production district, accurately calculates volume, weight by level meter measuring tank；
Step 2: finished product powder material is sent into sending cans by the first scraper feeder, by pneumatic conveying by finished product powder
Material is delivered to each receiver bin；Gas into receiver bin passes through and is discharged by air hose by air-introduced machine after deduster dust removal and filtration；
Step 3: finished product powder material, which enters after receiver bin, puts into metering scraper plate for finished product raw material by the second scraper feeder
Machine；
It awaits orders step 4: the liquid charging stock after weighing is delivered to mixing machine by metering conveyance conduit under self gravity；
Step 5: metering scrapper conveyor is as required to the finished product raw material of the mixing machine amount of reordering；
Step 6: PLC judges whether to feed by mixing machine internal reaction temperature, hybrid electro machine curent change parameter, if needing
It feeds, then starts metering scraper feeder, batcher, scraper, waited after material is put into mixing machine, while detecting mixing
Machine internal reaction temperature, hybrid electro machine curent change parameter judge whether to feed；Third step is returned after completing production；
Step 7: finished product product is transported to packaging by conveyer and is packed after mixing machine completes mixing.
7. the technique for carrying out beneficiation reagent production using the production line of beneficiation reagent described in claim 6, it is characterised in that: the
Finished product fission raw material is conveyed in three steps using inertia cryogenic gas, the inertia cryogenic gas be by filtering oxygen at
Divide and the lower compressed gas of dioxide component, the temperature of the inertia cryogenic gas are 2-10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743632.5A CN109081120A (en) | 2018-07-09 | 2018-07-09 | A kind of production line and its technique for beneficiation reagent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810743632.5A CN109081120A (en) | 2018-07-09 | 2018-07-09 | A kind of production line and its technique for beneficiation reagent |
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|---|---|
| CN109081120A true CN109081120A (en) | 2018-12-25 |
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ID=64837247
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| CN201810743632.5A Pending CN109081120A (en) | 2018-07-09 | 2018-07-09 | A kind of production line and its technique for beneficiation reagent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247644A (en) * | 2021-03-24 | 2021-08-13 | 宁波大发化纤有限公司 | Rotary drum drying automatic feeding system and method for recycled polyester spinning raw materials |
| CN115285714A (en) * | 2022-07-23 | 2022-11-04 | 许昌永立特种化纤有限公司 | Automatic device of delivering of raw and other materials |
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