CN106081482B - A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic - Google Patents

A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic Download PDF

Info

Publication number
CN106081482B
CN106081482B CN201610402374.5A CN201610402374A CN106081482B CN 106081482 B CN106081482 B CN 106081482B CN 201610402374 A CN201610402374 A CN 201610402374A CN 106081482 B CN106081482 B CN 106081482B
Authority
CN
China
Prior art keywords
rubber
parts
topping
conveyer belt
coal transport
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.)
Active
Application number
CN201610402374.5A
Other languages
Chinese (zh)
Other versions
CN106081482A (en
Inventor
吴洪清
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.)
ANHUI QIANGLI HEAVY INDUSTRY HOISTING MACHINERY Co Ltd
Original Assignee
ANHUI QIANGLI HEAVY INDUSTRY HOISTING 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 ANHUI QIANGLI HEAVY INDUSTRY HOISTING MACHINERY Co Ltd filed Critical ANHUI QIANGLI HEAVY INDUSTRY HOISTING MACHINERY Co Ltd
Priority to CN201610402374.5A priority Critical patent/CN106081482B/en
Publication of CN106081482A publication Critical patent/CN106081482A/en
Application granted granted Critical
Publication of CN106081482B publication Critical patent/CN106081482B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30Belts or like endless load-carriers
    • B65G15/32Belts or like endless load-carriers made of rubber or plastics
    • B65G15/34Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00Producing belts or bands
    • B29D29/06Conveyor belts
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00Compositions of natural rubber
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention provides a kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic, and including bottom rubber and rubber topping, fiber composition has been merged between bottom rubber and rubber topping;The bottom rubber is made of the raw material of following parts by weight:25 parts of natural rubber, 12 parts of butyl rubber, 0.5 part of graphite, 3.5 parts of elasticator (elasticizer), 0.1 part of bentonite, 0.3 part of zirconium dioxide, 0.3 part of rubber plastizing agent, 7 parts of diethylenetriamine, 0.8 part of boron trifluoride;The elasticator (elasticizer) is fourth conjugated diene, pentaerythritol oleate and maleic acid glycosides, and the weight ratio of three's addition is 1:2:1;The fiber composition is made of the raw material of following parts by weight:10 parts of flax fiber, 8 parts of bamboo fibre, 0.12 part of carbon fiber.Rubber conveyer belt provided by the invention is used for Coal Transport machine, as the carrier of Coal Transport, has good wearability, can resist the corrosion of contained element oxide in coal.

Description

A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic
Technical field
The present invention relates to Coal Transport machine field more particularly to a kind of Coal Transport machine rubber conveyings for eliminating electrostatic Band.
Background technology
Coal Transport machine is a kind of important equipment for conveying coal, within coal mines, needs to exploit by Coal Transport machine Coal be carried out come.And the conveyer belt of existing Coal Transport machine works under severe conditions for a long time, easy to wear, tension is strong Degree and anticorrosive ageing properties are not superior enough, and service life is shorter.And the conveyer belt of traditional Coal Transport machine is in itself, it is impossible to from Row eliminates electrostatic, and there are some potential safety problemss.
Invention content
The purpose of the present invention is to provide a kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic, to solve above-mentioned skill Art problem.
The technical problems to be solved by the invention are realized using following technical scheme:
A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic, it is characterised in that:Including bottom rubber and surface layer rubber Glue has merged fiber composition between bottom rubber and rubber topping,
The bottom rubber is made of the raw material of following parts by weight:
25 parts of natural rubber, 12 parts of butyl rubber, 0.5 part of graphite, 3.5 parts of elasticator (elasticizer), 0.1 part of bentonite, zirconium dioxide 0.3 part, 0.3 part of rubber plastizing agent, 7 parts of diethylenetriamine, 0.8 part of boron trifluoride;The elasticator (elasticizer) for fourth conjugated diene, Pentaerythritol oleate and maleic acid glycosides, the weight ratio of three's addition is 1:2:1;
The rubber topping is made of the raw material of following parts by weight:25 parts of natural rubber, 16 parts of butyl rubber, graphite 0.45 Part, 3.2 parts of elasticator (elasticizer), 0.1 part of bentonite, 0.3 part of zirconium dioxide, 0.3 part of rubber plastizing agent, 6.5 parts of diethylenetriamine, trifluoro Change 0.7 part of boron;The elasticator (elasticizer) be fourth conjugated diene, pentaerythritol oleate and maleic acid glycosides, three addition weight Than being 1:2:1;
The fiber composition is made of the raw material of following parts by weight:8 parts of flax fiber, 6 parts of bamboo fibre, carbon fiber 0.13 Part, 5 parts of conductive fiber.
The conductive fiber selects acrylic fibers copper complexing conductive fiber.
The rubber plastizing agent is made of the raw material of following parts by weight:
12 parts of chlorinated paraffin, 0.33 part of bamboo powder, 8 parts of phthalic acid ester, 3.6 parts of PE, 1.3 parts of talcum powder, coupling agent 0.2 part, 0.3 part of maleic anhydride grafted monomers;
Preparation method:
Above-mentioned raw materials are proportionally added into high-pressure bottle into horizontal high voltage batch mixing, pressure is 2~3 times of atmospheric pressure, and high pressure is mixed The temperature of material is 155-180 DEG C, and the time of high pressure batch mixing is 8-10 minutes;Then it adds in extruder and completes melting, batch mixing, extrusion Process, the machine barrel of extruder includes four areas, from feed end to extruding end, the temperature in four areas be followed successively by 185 DEG C, 230 DEG C, 205 DEG C, 195 DEG C, the machine cylinder pressure of the extruder is 0.06MPa.
The coupling agent uses silane coupling agent.
The production method of the Coal Transport machine rubber conveyer belt of electrostatic can be eliminated, is included the following steps:
(1) bottom rubber and rubber topping are kneaded:Bottom rubber and rubber topping are carried out respectively in the same way It is kneaded, mixing method is to be put into batch mixer to mix after the substance of other in addition to elasticator (elasticizer) in raw material is sufficiently mixed Refining is handled, and melting temperature is 70~80 DEG C, and mixing time is 20~30 minutes, then reduces temperature again to 40~60 DEG C, is added in Elasticator (elasticizer) continues mixing 10~20 minutes;
(2) bottom rubber and rubber topping molding:Using formed in mould mode respectively to the bottom rubber after mixing and Rubber topping carries out processing and forming, then cools down, and bottom rubber strip and rubber topping band are made respectively;
(3) fusion treatment:Fiber composition is uniformly mixed, is distributed between bottom rubber strip and rubber topping band, adopts Fiber composition is merged between bottom rubber strip and rubber topping band with the mode of electromagnetic heating, to bottom in heating process Rubber strip pressurizes with rubber topping band, bottom rubber strip and rubber topping band is pressed, pressure 800-1500 oxen, bottom rubber strip Central temperature between rubber topping band is 320-380 DEG C, and heating and pressing time are 12-35mi n, obtain hybrid rubber tape;
(4) destressing is handled:Hybrid rubber tape impregnates in the hot water, and water temperature is maintained at 65-68 DEG C, soaking time 35- 45mi n dry the Coal Transport machine rubber conveyer belt that can eliminate electrostatic to obtain the final product after taking-up.
The beneficial effects of the invention are as follows:
Rubber conveyer belt provided by the invention is used for Coal Transport machine, as the carrier of Coal Transport, has good resistance to Mill property can resist the corrosion of contained element oxide in coal;With good tensile strength, electrostatic can be voluntarily eliminated.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained, but following embodiments are only the preferred embodiment of the present invention, and not all. Based on the embodiment in embodiment, those skilled in the art obtain other realities under the premise of creative work is not made Example is applied, belongs to protection scope of the present invention.
Rubber plastizing agent is made of the raw material of following parts by weight:
12 parts of chlorinated paraffin, 0.33 part of bamboo powder, 8 parts of phthalic acid ester, 3.6 parts of PE, 1.3 parts of talcum powder, coupling agent 0.2 part, 0.3 part of maleic anhydride grafted monomers;
Preparation method:
Above-mentioned raw materials are proportionally added into high-pressure bottle into horizontal high voltage batch mixing, pressure is 2~3 times of atmospheric pressure, and high pressure is mixed The temperature of material is 155-180 DEG C, and the time of high pressure batch mixing is 8-10 minutes;Then it adds in extruder and completes melting, batch mixing, extrusion Process, the machine barrel of extruder includes four areas, from feed end to extruding end, the temperature in four areas be followed successively by 185 DEG C, 230 DEG C, 205 DEG C, 195 DEG C, the machine cylinder pressure of the extruder is 0.06MPa.
A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic, including bottom rubber and rubber topping, bottom rubber Fiber composition has been merged between rubber topping,
The bottom rubber is made of the raw material of following parts by weight:
25 parts of natural rubber, 12 parts of butyl rubber, 0.5 part of graphite, 3.5 parts of elasticator (elasticizer), 0.1 part of bentonite, zirconium dioxide 0.3 part, 0.3 part of rubber plastizing agent, 7 parts of diethylenetriamine, 0.8 part of boron trifluoride;The elasticator (elasticizer) for fourth conjugated diene, Pentaerythritol oleate and maleic acid glycosides, the weight ratio of three's addition is 1:2:1;
The rubber topping is made of the raw material of following parts by weight:25 parts of natural rubber, 16 parts of butyl rubber, graphite 0.45 Part, 3.2 parts of elasticator (elasticizer), 0.1 part of bentonite, 0.3 part of zirconium dioxide, 0.3 part of rubber plastizing agent, 6.5 parts of diethylenetriamine, trifluoro Change 0.7 part of boron;The elasticator (elasticizer) be fourth conjugated diene, pentaerythritol oleate and maleic acid glycosides, three addition weight Than being 1:2:1;
The fiber composition is made of the raw material of following parts by weight:8 parts of flax fiber, 6 parts of bamboo fibre, carbon fiber 0.13 Part, acrylic fibers copper 5 parts of conductive fiber of complexing.
The production method of the Coal Transport machine rubber conveyer belt of electrostatic can be eliminated, is included the following steps:
(1) bottom rubber and rubber topping are kneaded:Bottom rubber and rubber topping are carried out respectively in the same way It is kneaded, mixing method is to be put into batch mixer to mix after the substance of other in addition to elasticator (elasticizer) in raw material is sufficiently mixed Refining is handled, and melting temperature is 70~80 DEG C, and mixing time is 20~30 minutes, then reduces temperature again to 40~60 DEG C, is added in Elasticator (elasticizer) continues mixing 10~20 minutes;
(2) bottom rubber and rubber topping molding:Using formed in mould mode respectively to the bottom rubber after mixing and Rubber topping carries out processing and forming, then cools down, and bottom rubber strip and rubber topping band are made respectively;
(3) fusion treatment:Fiber composition is uniformly mixed, is distributed between bottom rubber strip and rubber topping band, adopts Fiber composition is merged between bottom rubber strip and rubber topping band with the mode of electromagnetic heating, to bottom in heating process Rubber strip pressurizes with rubber topping band, bottom rubber strip and rubber topping band is pressed, pressure 800-1500 oxen, bottom rubber strip Central temperature between rubber topping band is 320-380 DEG C, and heating and pressing time are 12-35mi n, obtain hybrid rubber tape;
(4) destressing is handled:Hybrid rubber tape impregnates in the hot water, and water temperature is maintained at 65-68 DEG C, soaking time 35- 45mi n dry the Coal Transport machine rubber conveyer belt that can eliminate electrostatic to obtain the final product after taking-up.
Under conditions of 20 DEG C, relative humidity 65%, resistivity is detected from the two sides of rubber conveyer belt, rubber The resistivity of conveyer belt is less than 107Ω cm can effectively eliminate electrostatic.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also have it is various Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute Attached claims and its equivalent thereof.

Claims (3)

1. a kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic, it is characterised in that:Including bottom rubber and rubber topping, Fiber composition has been merged between bottom rubber and rubber topping,
The bottom rubber is made of the raw material of following parts by weight:
25 parts of natural rubber, 12 parts of butyl rubber, 0.5 part of graphite, 3.5 parts of elasticator (elasticizer), 0.1 part of bentonite, zirconium dioxide 0.3 Part, 0.3 part of rubber plastizing agent, 7 parts of diethylenetriamine, 0.8 part of boron trifluoride;The elasticator (elasticizer) is fourth conjugated diene, season Penta tetrol oleate and maleic acid glycosides, the weight ratio of three's addition is 1:2:1;
The rubber topping is made of the raw material of following parts by weight:25 parts of natural rubber, 16 parts of butyl rubber, 0.45 part of graphite, It is 3.2 parts of elasticator (elasticizer), 0.1 part of bentonite, 0.3 part of zirconium dioxide, 0.3 part of rubber plastizing agent, 6.5 parts of diethylenetriamine, borontrifluoride 0.7 part of boron;The elasticator (elasticizer) be fourth conjugated diene, pentaerythritol oleate and maleic acid glycosides, three addition weight ratio It is 1:2:1;
The fiber composition is made of the raw material of following parts by weight:8 parts of flax fiber, 6 parts of bamboo fibre, 0.13 part of carbon fiber, 5 parts of conductive fiber;
The production method of the Coal Transport machine rubber conveyer belt of electrostatic can be eliminated, is included the following steps:
(1) bottom rubber and rubber topping are kneaded:Bottom rubber and rubber topping are kneaded respectively in the same way, Mixing method is to be put into batch mixer to carry out at mixing after the substance of other in addition to elasticator (elasticizer) in raw material is sufficiently mixed Reason, melting temperature are 70~80 DEG C, and mixing time is 20~30 minutes, then reduces temperature again to 40~60 DEG C, adds in elasticity Agent continues mixing 10~20 minutes;
(2) bottom rubber and rubber topping molding:Using formed in mould mode respectively to the bottom rubber after mixing and surface layer Rubber carries out processing and forming, then cools down, and bottom rubber strip and rubber topping band are made respectively;
(3) fusion treatment:Fiber composition is uniformly mixed, is distributed between bottom rubber strip and rubber topping band, using electricity The mode of magnetic heating merges fiber composition between bottom rubber strip and rubber topping band, to bottom rubber in heating process Band pressurizes with rubber topping band, bottom rubber strip and rubber topping band is pressed, pressure 800-1500 oxen, bottom rubber strip and table Central temperature between layer rubber strip is 320-380 DEG C, and heating and pressing time are 12-35min, obtain hybrid rubber tape;
(4) destressing is handled:Hybrid rubber tape impregnates in the hot water, and water temperature is maintained at 65-68 DEG C, soaking time 35-45mi N dries the Coal Transport machine rubber conveyer belt that can eliminate electrostatic to obtain the final product after taking-up;
The rubber plastizing agent is made of the raw material of following parts by weight:
12 parts of chlorinated paraffin, 0.33 part of bamboo powder, 8 parts of phthalic acid ester, 3.6 parts of PE, 1.3 parts of talcum powder, 0.2 part of coupling agent, 0.3 part of maleic anhydride grafted monomers;
Preparation method:
Above-mentioned raw materials are proportionally added into high-pressure bottle into horizontal high voltage batch mixing, pressure is 2~3 times of atmospheric pressure, high pressure batch mixing Temperature is 155-180 DEG C, and the time of high pressure batch mixing is 8-10 minutes;Then it adds in extruder and completes melting, batch mixing, the mistake squeezed out Journey, the machine barrel of extruder include four areas, from feed end to extruding end, the temperature in four areas be followed successively by 185 DEG C, 230 DEG C, 205 DEG C, 195 DEG C, the machine cylinder pressure of the extruder is 0.06MPa.
2. the Coal Transport machine rubber conveyer belt according to claim 1 for eliminating electrostatic, it is characterised in that:The conduction Fiber selects acrylic fibers copper complexing conductive fiber.
3. the Coal Transport machine rubber conveyer belt according to claim 1 for eliminating electrostatic, it is characterised in that:The coupling Agent uses silane coupling agent.
CN201610402374.5A 2016-06-01 2016-06-01 A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic Active CN106081482B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610402374.5A CN106081482B (en) 2016-06-01 2016-06-01 A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610402374.5A CN106081482B (en) 2016-06-01 2016-06-01 A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic

Publications (2)

Publication Number Publication Date
CN106081482A CN106081482A (en) 2016-11-09
CN106081482B true CN106081482B (en) 2018-06-29

Family

ID=57228431

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610402374.5A Active CN106081482B (en) 2016-06-01 2016-06-01 A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic

Country Status (1)

Country Link
CN (1) CN106081482B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107720097A (en) * 2017-10-27 2018-02-23 广州力博工业皮带有限公司 A kind of webbing strap and preparation method thereof
US11884788B2 (en) * 2019-02-27 2024-01-30 Kuraray Co., Ltd. Reinforcing fiber, method for manufacturing same, and molded body using same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US499472A (en) * 1893-06-13 Conveyer-belt
CN103012977A (en) * 2012-12-25 2013-04-03 阜新环宇橡胶(集团)有限公司 Fabric laminated flame retardant conveyer belt used for coal mine
CN204021725U (en) * 2014-07-29 2014-12-17 江苏天丰橡塑制品有限公司 A kind of mining stacked fire retarding conveying band

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US499472A (en) * 1893-06-13 Conveyer-belt
CN103012977A (en) * 2012-12-25 2013-04-03 阜新环宇橡胶(集团)有限公司 Fabric laminated flame retardant conveyer belt used for coal mine
CN204021725U (en) * 2014-07-29 2014-12-17 江苏天丰橡塑制品有限公司 A kind of mining stacked fire retarding conveying band

Also Published As

Publication number Publication date
CN106081482A (en) 2016-11-09

Similar Documents

Publication Publication Date Title
CN104513410B (en) Preparation method of pre-dispersed carbon nano-tube rubber masterbatches
CN102964690B (en) A kind of High-strength corrosion resistance polypropylene composite material and preparation method thereof
CN103613883B (en) A kind of take Graphene as Wear-resistant hard composite material of filler and preparation method thereof
CN101235192A (en) Polylactic acid and plant fiber composite material and preparation method thereof
CN1966564A (en) Reinforced toughening anti-aging polypropylene/nano calcium carbonate composite material and its preparation method
CN102643480B (en) Anti-static alloy composite material and preparation method thereof
CN106081482B (en) A kind of Coal Transport machine rubber conveyer belt for eliminating electrostatic
CN102964815B (en) Microscopically well-dispersed high performance nano reinforced nylon composite and preparation method thereof
CN102558679A (en) Novel bamboo fiber/polypropylene composite material and method for preparing same
CN102391631A (en) Biodegradable anti-static macromolecule composite material and preparation method of the same
CN100577380C (en) Heat pressing production method of polyethylene fiber-plant fibre compound material
CN103214843A (en) Macrofiber-reinforced long carbon chain nylon and preparation method thereof
CN106674886A (en) Enhanced antistatic polyetheretherketone composite material and preparation method thereof
CN102627830B (en) ABS/attapulgite composite material and preparation method thereof
CN103408927A (en) Composite fiber modified nylon material and preparation method thereof
CN103980707A (en) Toughened polyether-imide composite material and preparation method thereof
CN104004351A (en) High-glass-fiber reinforced nylon material and preparing method of high-glass-fiber reinforced nylon material
CN103450605A (en) Preparation method of modified polytrifluorochloroethylene material
CN103450677B (en) A kind of continuous long carbon fiber strengthens MXD6 mixture and preparation method thereof
CN102079868A (en) Method for preparing liquid crystal nylon alloy
CN106003771B (en) A kind of production method for the Coal Transport machine rubber conveyer belt for eliminating electrostatic
CN103275404A (en) EPR (ethylene-propylene rubber)/agricultural waste composite material as well as preparation method and application thereof
CN103524941A (en) Wear-resistant scratch-resistant plastic
CN103146055B (en) Food-grade heat-resistant polypropylene composite material and preparation method thereof
CN106084807A (en) A kind of rubber plastizing agent for Coal Transport machine wear resistant belt

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
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Coal conveyer rubber conveyer belt capable of eliminating static electricity

Effective date of registration: 20190603

Granted publication date: 20180629

Pledgee: Bengbu financing guarantee Group Co., Ltd.

Pledgor: Anhui Qiangli Heavy Industry Hoisting Machinery Co., Ltd.

Registration number: 2019340000281