CN106283213A - The vacuum pipe of a kind of vacuum cleaning oven cleans device - Google Patents

The vacuum pipe of a kind of vacuum cleaning oven cleans device Download PDF

Info

Publication number
CN106283213A
CN106283213A CN201610712758.7A CN201610712758A CN106283213A CN 106283213 A CN106283213 A CN 106283213A CN 201610712758 A CN201610712758 A CN 201610712758A CN 106283213 A CN106283213 A CN 106283213A
Authority
CN
China
Prior art keywords
vacuum
water
spray
control system
vacuum pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610712758.7A
Other languages
Chinese (zh)
Other versions
CN106283213B (en
Inventor
金德贵
聂德全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Xinlong Chemical Fiber Machinery Co., Ltd
Original Assignee
Jiangsu Xinlong Chemical Fiber Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Xinlong Chemical Fiber Machinery Co Ltd filed Critical Jiangsu Xinlong Chemical Fiber Machinery Co Ltd
Priority to CN201610712758.7A priority Critical patent/CN106283213B/en
Publication of CN106283213A publication Critical patent/CN106283213A/en
Application granted granted Critical
Publication of CN106283213B publication Critical patent/CN106283213B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00Spinnerette packs; Cleaning thereof
    • D01D4/04Cleaning spinnerettes or other parts of the spinnerette packs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

The vacuum pipe that the invention discloses a kind of vacuum cleaning oven cleans device, this cleaning device includes pipeline blocking-preventing device for vacuum, spray equipment and control system, wherein pipeline blocking-preventing device for vacuum contains vaccum case, water-ring vacuum pump and moisture trap, vaccum case is fixed on body of heater, spray equipment includes Water spray depurator and preventing return water device, preventing return water device is included in spray and fills the upper normal-closed electromagnetic valve installed and manual intake valve, pipeline blocking-preventing device for vacuum, spray equipment is connected with control system, set-up of control system have the temperature controller of the mutually linkage comprising temperature programmed control, can the low warning of hydraulic pressure, overtemperature alarm, coarse vacuum is reported to the police.During evacuation of the present invention, efficiently solving the blockage problem of vacuum pipe, and prevent flow backwards vacuum equipment, control system can accurately control heating-up temperature, it is provided that precision and efficiency.

Description

The vacuum pipe of a kind of vacuum cleaning oven cleans device
Technical field
The present invention relates to vacuum cleaned field, be specifically related to one and be applicable to clean chemical fibre industry super-huge assembly spray webbing On the parts such as plate, distribution plate, the vacuum pipe of a kind of vacuum cleaning oven of the chemical fibre polymer of attachment cleans device.
Background technology
Vacuum cleaning oven is applicable to the terylene of chemical fibre industry, chinlon, polypropylene, the assembly of nonwoven production, spinneret, mistake The cleaning such as filter element processes, and is also applied for plastics, cable, the die head cleaning of resin industry are used.Vacuum cleaning oven utilizes macromolecule Polymer is melting when about 300 DEG C, higher than 300 DEG C of isolation air cleavable coking, is having a small amount of air also higher than 400 DEG C Have in the environment of certain vacuum degree can the characteristic of complete oxidation, first by be stained with macromolecule dirt workpiece heat to 300 DEG C (according to Technological requirement is drafted), make to trickle in the collection container of lower furnace portion after the fusing of a fairly large number of high molecular polymer on workpiece, The most again furnace temperature is raised to 400-500 DEG C, opens vacuum pump simultaneously, and be passed through a small amount of fresh air, make remaining polymer fill Divide oxidation, the carbon dioxide of generation, be then discharged out outside stove.Owing to chemical fibre high molecular polymer can produce many after vacuum cracking Carrying sticking dust, these dust easily stick to, on vacuum tube inwall, cause the blocking of vacuum tube.In prior art, such as public affairs The pipeline blocking-preventing device for vacuum and the vacuum extractor that disclose a kind of vacuum cleaning oven in front application that the number of opening is CN2752694Y, The vaccum case of pipeline blocking-preventing device for vacuum is connected with one end of vacuum tube, vaccum case inner chamber equipped with heater and filtration members, Being also equipped with intake valve on vaccum case, filtration members is screen plate, and screen plate at least two pieces, screen plate is contained in rustless steel electrical heating Guan Shang, screen plate is provided with some apertures, and the vacuum tube other end is connected with the entrance of Water spray depurator, Water spray depurator Outlet be connected with the interface of water-ring vacuum pump, another interface of water-ring vacuum pump is connected with moisture trap.This device Reduce the blocking of vacuum tube to a certain extent, but be susceptible to aqueous reflux vacuum pump, pollute, additionally, there may be for The heating of pipeline blocking-preventing device for vacuum can not accurately control, heating, supplies water, and it is automatic that evacuation and spray can not realize sequencing The problems such as control, temperature control precision deficiency and inefficiency.
Summary of the invention
It is an object of the invention to solve above-mentioned technical problem, it is provided that a kind of easy to use, efficiency is high, pollute less, precision The vacuum pipe of high a kind of vacuum cleaning oven cleans device.
To achieve these goals, the technical scheme is that
The vacuum pipe of a kind of vacuum cleaning oven cleans device, and it includes pipeline blocking-preventing device for vacuum, spray equipment and control system System, wherein pipeline blocking-preventing device for vacuum contains vaccum case, water-ring vacuum pump and moisture trap, and vaccum case is fixed on stove On body, vaccum case inner chamber, equipped with rustless steel electric heating tube and four pieces of screen plates, vaccum case is also equipped with intake valve, screen plate Being contained on rustless steel electric heating tube, screen plate is provided with some apertures, and one end of vaccum case is connected with one end of vacuum tube, its Being characterised by, the other end of vaccum case assembles with fixing seat, and electric wire is connected on the rustless steel electric heating tube of vaccum case inner chamber On binding post, and passing from through wires hole, be connected with control system, spray equipment includes Water spray depurator and preventing return water dress Putting, the other end of vacuum tube is connected with the entrance of Water spray depurator, the outlet of Water spray depurator and water-ring vacuum pump Interface is connected, and another interface of water-ring vacuum pump is connected with moisture trap, and spray equipment is connected with control system.
Further, spray equipment includes that Water spray depurator and preventing return water device, the other end of vacuum tube spray with water The entrance drenching depurator is connected, and the outlet of Water spray depurator is connected with the interface of water-ring vacuum pump, water-ring vacuum pump Another interface is connected with moisture trap, and spray equipment is connected with control system.
Further, preventing return water device is included in spray and fills the upper normal-closed electromagnetic valve installed and manual intake valve.When Vacuum pump open time, this electromagnetic valve and vacuum pump simultaneously electric, electromagnetic valve is in closure state.When vacuum pump is closed, this electricity Magnet valve dead electricity simultaneously, and it is in opening, it is now negative pressure in stove, stove outer air quickly enters in stove by this valve, makes stove Internal and external pressure balance.
Further, set-up of control system is in switch board, and switch board wiring enters lower outlet under using, and sets bottom switch board Having carbon steel mounting seat, the power cable of switch board to body of heater, control cable need to lay wire casing protection, electrical equipment in switch board Protection panel is installed at main circuit connection, and switch board arranges the low warning of hydraulic pressure, overtemperature alarm, coarse vacuum warning.
Further, control system contains three set high-precision digital display type programmable temperature control instrument, it is possible to automatically starts and arranges Good process parameter carries out PID and regulates temperature control, the most a set of instrument program temperature control, a set of instrument interlock protection, another set of instrument List solely controls pipeline blocking-preventing device for vacuum chain with whole system, and realizes following protection:
(1) overtemperature alarm, and automatically cut off heating power supply.
(2) disconnected even warning, and automatically cut off heating power supply.
(3) circuit water alarm, and automatically cut off heating power supply.
(4) vacuum pump do not run or vacuum low spacing time, equipment alarm, cut off heating power supply simultaneously, protect.
Compared with prior art, the present invention has the following technical effect that puts pouring device by setting, and can effectively prevent The generation of pouring situation, reduces the pollution of vacuum pump;Use control system, and with pipeline blocking-preventing device for vacuum, spray equipment phase Even, cleaning thoroughly, automaticity is high, it is possible to realizes temperature and controls accurately, to improve work efficiency, alleviate labor intensity.
Accompanying drawing explanation
Fig. 1 is prior art pipeline blocking-preventing device for vacuum structural representation.
Fig. 2 is evacuation and spray equipment in prior art.
Fig. 3 is pipeline blocking-preventing device for vacuum and body of heater and the figure that is linked and packed of other parts in the present invention.
Fig. 4 is evacuation and spray equipment in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the embodiment of invention is described in detail:
Shown in Fig. 1-2, for pipeline blocking-preventing device for vacuum in prior art and evacuation and spray equipment.Pipeline blocking-preventing device for vacuum Containing vaccum case 2, water-ring vacuum pump 13 and moisture trap 12, vaccum case 2 is fixed on support 7, vaccum case 2 with One end of vacuum tube 1 is connected, and vaccum case 2 inner chamber is equipped with rustless steel electric heating tube 4 and four pieces of screen plates 3, and electric wire is connected on stainless On the binding post 8 of steel electric heating tube 4, and pass from through wires hole 9.Intake valve 5 it is also equipped with on vaccum case 2.Screen plate 3 is contained in On rustless steel electric heating tube 4, screen plate is provided with some apertures.
Pipeline blocking-preventing device for vacuum is connected with evacuation and spray equipment, and one end of vaccum case 2 is fixed on support 7, The other end of vaccum case 2 is fixed on body of heater, and vaccum case 2 is connected with vacuum tube 1, the other end of vacuum tube 1 and Water spray The entrance of depurator 11 is connected, and the outlet of Water spray depurator 11 is connected with the interface of water-ring vacuum pump 13, liquid-ring type vacuum Another interface of pump 13 is connected with moisture trap 12.
As shown in Figure 3-4, the vacuum pipe of the vacuum cleaning oven of the application cleans device, and it includes the anti-blocking dress of vacuum pipe Put, spray equipment and control system.Wherein, pipeline blocking-preventing device for vacuum is identical with agent structure of the prior art, simply exists Improve to some extent with on body of heater and vacuum tube connected mode, as it is shown on figure 3, vaccum case 2 is fixed on body of heater 10, vaccum case 2 One end be connected with vacuum tube 1, the other end of vaccum case 2 and fixing seat assemble, and electric wire is connected on the stainless of vaccum case 2 inner chamber On the binding post 8 of steel electric heating tube 4, and pass from through wires hole 9, be connected with control system.
As shown in Figure 4, spray equipment includes that Water spray purifies to the connection status of pipeline blocking-preventing device for vacuum and spray equipment Device 11 and preventing return water device 6, the other end of vacuum tube 1 is connected with the entrance of Water spray depurator 11, Water spray depurator 11 Outlet be connected with the interface of water-ring vacuum pump 13, another interface of water-ring vacuum pump 13 is connected with moisture trap 12. Preventing return water device 6 is included in spray and fills the upper normal-closed electromagnetic valve installed and manual intake valve.When vacuum pump is opened, this electricity Magnet valve and vacuum pump simultaneously electric, electromagnetic valve is in closure state.When vacuum pump is closed, this electromagnetic valve dead electricity simultaneously, and locate In opening, being now negative pressure in stove, stove outer air quickly enters in stove by this valve, makes stove internal and external pressure balance, overcomes Because of in stove during negative pressure the aqueous reflux in vacuum pump pipeline enter the defect in stove.During manual intake valve system normal-closed electromagnetic valve fault Manually use.Spray equipment is connected with control system (not shown).Set-up of control system is in switch board, and switch board wiring is adopted Entering lower outlet under with, be provided with carbon steel mounting seat bottom switch board, the power cable of switch board to body of heater, control cable need to lay Wire casing protect, in switch board electrical equipment protection panel only need to install at main circuit connection, the low warning of hydraulic pressure, overtemperature alarm, Coarse vacuum is reported to the police and is alarm lamp mode, it is not necessary to sound.Control system contains three set high-precision digital display type programmable temperature control instrument, energy Enough optimised process program parameters arranged that automatically starts carry out PID regulation temperature control, the most a set of instrument program temperature control, a set of instrument Interlock protection, another set of instrument individually controls pipeline blocking-preventing device for vacuum chain with whole system.
General chemical fibre high molecular polymer, about 300 DEG C fusings, higher than 300 DEG C of isolation air cracking, and produces multiple Lysate, in atmosphere can complete oxidation higher than 440 DEG C.According to this characteristic of chemical fibre high molecular polymer, vacuum cleaning oven First cleaning part is heated about 300 DEG C, make a fairly large number of high molecular polymer fusing on surface of the work be flowed into bottom waste material In collecting tank, the most remaining a small amount of high molecular polymer in the aperture on screen plate 3.Open water-ring vacuum pump, now burner hearth Inner chamber is negative pressure, and the sticking dust of band produced after vacuum cracking in burner hearth is pumped down in vaccum case, in vaccum case Rustless steel electric heating tube is automatically controlled by temperature control system and is heated to 600 DEG C, opens intake valve simultaneously, is passed through sky in vaccum case Gas, opens water intaking valve, in Water spray depurator spray water, make dust under aerobic state in vaccum case through 600 DEG C of high temperature Burning, the ash of generation is through Water spray purification utensil, and the gas of generation is taken away by water-ring vacuum pump, through gas-water separation Device discharges outdoor after separating.The ash that in stove, dust generates after vacuum pipe material-blockage preventing device burns is in spray cleaning device Rustless steel Pall ring spray filtering after, then to vacuum pump, do not constitute the pollution to vacuum pump, it is ensured that water-ring vacuum pump Normal use.When vacuum pump is opened, this electromagnetic valve and vacuum pump simultaneously electric, electromagnetic valve is in closure state.Work as vacuum pump During closedown, this electromagnetic valve dead electricity simultaneously, and it is in opening, and it is now negative pressure in stove, stove outer air is entered rapidly by this valve Enter in stove, make stove internal and external pressure balance, overcome the defect because the aqueous reflux in vacuum pump pipeline enters in stove during negative pressure in stove.Control System processed uses three set temperature controllers and warning system to be controlled, it is achieved accurately temperature control and alarm and protection, it is achieved following functions:
(1) overtemperature alarm, and automatically cut off heating power supply.
(2) disconnected even warning, and automatically cut off heating power supply.
(3) circuit water alarm, and automatically cut off heating power supply.
(4) vacuum pump do not run or vacuum low spacing time, equipment alarm, cut off heating power supply simultaneously, protect.
The above is only the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art, On the premise of present inventive concept, the conventional improvements and modifications made, these improvements and modifications each fall within present invention power Within the scope of profit is claimed.

Claims (4)

1. the vacuum pipe of vacuum cleaning oven cleans a device, and this cleaning device includes pipeline blocking-preventing device for vacuum, spray dress Putting and control system, wherein pipeline blocking-preventing device for vacuum contains vaccum case, water-ring vacuum pump and moisture trap, vacuum shell Body is fixed on body of heater, vaccum case inner chamber equipped with rustless steel electric heating tube and four pieces of screen plates, vaccum case is also equipped with into Air valve, screen plate is contained on rustless steel electric heating tube, and screen plate is provided with some apertures, one end of vaccum case and vacuum tube One end is connected, it is characterised in that the other end of vaccum case assembles with fixing seat, and electric wire is connected on the rustless steel of vaccum case inner chamber On the binding post of electric heating tube, and pass from through wires hole, be connected with control system, spray equipment include Water spray depurator and Preventing return water device, the other end of vacuum tube is connected with the entrance of Water spray depurator, the outlet of Water spray depurator and water ring The interface of formula vacuum pump is connected, and another interface of water-ring vacuum pump is connected with moisture trap, spray equipment and control system It is connected.
The vacuum pipe of vacuum cleaning oven the most according to claim 1 cleans device, and preventing return water device is included in spray The normal-closed electromagnetic valve installed in filling and manual intake valve, when vacuum pump is opened, this electromagnetic valve and vacuum pump simultaneously electric, electric Magnet valve is in closure state;When vacuum pump is closed, this electromagnetic valve dead electricity simultaneously, and it is in opening, it is now negative in stove Pressure, stove outer air quickly enters in stove by this valve, makes stove internal and external pressure balance.
The vacuum pipe of vacuum cleaning oven the most according to claim 1 and 2 cleans device, and set-up of control system is at switch board In, switch board wiring enters lower outlet under using, and is provided with carbon steel mounting seat, the power current of switch board to body of heater bottom switch board Cable, control cable need to lay wire casing protection, and in switch board, electrical equipment protection panel is installed, on switch board at main circuit connection The low warning of hydraulic pressure, overtemperature alarm, coarse vacuum warning are set.
The vacuum pipe of vacuum cleaning oven the most according to claim 3 cleans device, and control system contains three set high accuracy Digital display type programmable temperature control instrument, it is possible to automatically start the optimised process program parameter arranged and carry out PID regulation temperature control, the most a set of instrument List procedure temperature control, a set of instrument interlock protection, another set of instrument individually controls pipeline blocking-preventing device for vacuum and connects with whole system Lock, and realize following protection:
(1) overtemperature alarm, and automatically cut off heating power supply;
(2) disconnected even warning, and automatically cut off heating power supply;
(3) circuit water alarm, and automatically cut off heating power supply;
(4) vacuum pump do not run or vacuum low spacing time, equipment alarm, cut off heating power supply simultaneously, protect.
CN201610712758.7A 2016-08-24 2016-08-24 A kind of vacuum pipe cleaning device of vacuum cleaning oven Active CN106283213B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610712758.7A CN106283213B (en) 2016-08-24 2016-08-24 A kind of vacuum pipe cleaning device of vacuum cleaning oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610712758.7A CN106283213B (en) 2016-08-24 2016-08-24 A kind of vacuum pipe cleaning device of vacuum cleaning oven

Publications (2)

Publication Number Publication Date
CN106283213A true CN106283213A (en) 2017-01-04
CN106283213B CN106283213B (en) 2019-06-04

Family

ID=57615870

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610712758.7A Active CN106283213B (en) 2016-08-24 2016-08-24 A kind of vacuum pipe cleaning device of vacuum cleaning oven

Country Status (1)

Country Link
CN (1) CN106283213B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107159649A (en) * 2017-06-27 2017-09-15 江苏鑫龙化纤机械有限公司 Vacuum cleaner with exhaust-gas treatment
CN107557883A (en) * 2017-08-24 2018-01-09 江苏金斗重工有限公司 Environmental protection and energy saving vacuum cleaning oven

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119395A (en) * 1990-11-09 1992-06-02 Gas Research Institute Interlock feed-through and insulator arrangement for plasma arc industrial heat treat furnaces
CN2752694Y (en) * 2004-09-21 2006-01-18 盐城化纤机械有限公司 Vacuum pipe antiplugging device for vacuum cleaning furnace
CN101182647A (en) * 2006-11-14 2008-05-21 盐城化纤机械有限公司 Fine-denier filament spinneret ethanediol cleaner capable of automatically adding cleaning solution
CN105617943A (en) * 2015-09-29 2016-06-01 江苏鑫龙化纤机械有限公司 Large-volume vacuum cracking furnace
CN105665322A (en) * 2015-09-29 2016-06-15 江苏鑫龙化纤机械有限公司 TEG circulation cleaning device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119395A (en) * 1990-11-09 1992-06-02 Gas Research Institute Interlock feed-through and insulator arrangement for plasma arc industrial heat treat furnaces
CN2752694Y (en) * 2004-09-21 2006-01-18 盐城化纤机械有限公司 Vacuum pipe antiplugging device for vacuum cleaning furnace
CN101182647A (en) * 2006-11-14 2008-05-21 盐城化纤机械有限公司 Fine-denier filament spinneret ethanediol cleaner capable of automatically adding cleaning solution
CN105617943A (en) * 2015-09-29 2016-06-01 江苏鑫龙化纤机械有限公司 Large-volume vacuum cracking furnace
CN105665322A (en) * 2015-09-29 2016-06-15 江苏鑫龙化纤机械有限公司 TEG circulation cleaning device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHENGQIANG4321: "真空清洗炉控制系统及主要电气元件选型", 《百度文库》 *
羊建高等: "《硬质合金》", 31 December 2012, 中南大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107159649A (en) * 2017-06-27 2017-09-15 江苏鑫龙化纤机械有限公司 Vacuum cleaner with exhaust-gas treatment
CN107557883A (en) * 2017-08-24 2018-01-09 江苏金斗重工有限公司 Environmental protection and energy saving vacuum cleaning oven

Also Published As

Publication number Publication date
CN106283213B (en) 2019-06-04

Similar Documents

Publication Publication Date Title
CN106091689B (en) A kind of vacuum incineration furnace apparatus and its working method
CN101812857B (en) Air fresh water generator
CN104147874B (en) Control method and control system for sack cleaner
KR100769110B1 (en) methods and derice to remove dust and dust collector
CN102913967B (en) Self-circulation lampblack purification smokeless equipment used for hot pot or barbecue
CN109848416A (en) A kind of filtrating smoke dust and powder recovering device of metal precinct laser fusion
CN106283213A (en) The vacuum pipe of a kind of vacuum cleaning oven cleans device
CN107913565A (en) Apparatus for treating cooking fume and cooking system
CN206018761U (en) A kind of domestic intelligent cleaning oil smoke suction clearing machine
CN201883470U (en) Machine for generating fresh water by air
CN205641094U (en) Clarifier is handled to oil smoke
CN208837614U (en) A kind of dish frying device
CN207455753U (en) A kind of environmental protection air filter
CN105729673B (en) A kind of twin-tub cycle drying deodorizing device
CN211358163U (en) Vacuum pipeline anti-blocking device
CN208543698U (en) A kind of poly (methyl methacrylate) plate heat preservation solidification integrated reacting case
CN211215920U (en) A coating cloud collection device for enameled wire workshop
CN208357187U (en) Copper wire enameling machine baker
CN206724329U (en) A kind of air filtration and purification apparatus based on mobile robot
CN207483883U (en) The Clean- hot water storgae of auto parts machinery and anodic oxidation equipment
CN208454899U (en) A kind of wax oil hydrogenation cracking unit fractionating column charging heating furnace
WO2020147523A1 (en) Fume processing apparatus and intelligent frying machine
CN206478750U (en) A kind of new blower fan
CN109717733A (en) A kind of dish frying device
CN110579085A (en) Animal blood cell protein centrifugal drying device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 224022, No. 29, Renmin Road, grand longitudinal Lake Town, Yancheng City, Jiangsu

Patentee after: Jiangsu Xinlong Chemical Fiber Machinery Co., Ltd

Address before: 224022, No. 29, Renmin Road, grand longitudinal Lake Town, Yancheng City, Jiangsu

Patentee before: JIANGSU XINLONG CHEMICAL FIBER MACHINERY Co.,Ltd.

CP01 Change in the name or title of a patent holder