CN112250923A - High-sealing-performance reactor plant gate rubber sealing ring and preparation method thereof - Google Patents

High-sealing-performance reactor plant gate rubber sealing ring and preparation method thereof Download PDF

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Publication number
CN112250923A
CN112250923A CN202011112500.6A CN202011112500A CN112250923A CN 112250923 A CN112250923 A CN 112250923A CN 202011112500 A CN202011112500 A CN 202011112500A CN 112250923 A CN112250923 A CN 112250923A
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parts
rubber
mixing
sealing ring
vulcanizing agent
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李威
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Shanghai Renhe Electromechanical Technology Co ltd
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Shanghai Renhe Electromechanical Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L11/00—Compositions of homopolymers or copolymers of chloroprene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
    • B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
    • B29B7/18—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/183—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with more than one shaft having a casing closely surrounding the rotors, e.g. of Banbury type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • 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)

Abstract

The invention belongs to the field of water gate sealing of reactor plants, and particularly discloses a high-sealing rubber sealing ring for a reactor plant gate and a preparation method thereof, wherein the rubber sealing ring comprises the following rubber sealing rings in parts by weight: 43-67 parts of rubber raw material, 5-9 parts of polycaprolactone, 9-22 parts of reinforcing filler, 3-5 parts of quartz fiber, 2-6 parts of plasticizer, 1-5 parts of fatty acid modified calcium carbonate, 3-8 parts of nano magnesium oxide, 3-6 parts of silicon micropowder, 1-3 parts of bauxite powder, 1-3 parts of vulcanizing agent, 0.5-2 parts of accelerator and 0.6-1 part of coupling agent. The invention enhances the pressure resistance and the ageing resistance and the corrosion resistance of the sealing ring, prolongs the service life of the sealing ring and effectively prevents the phenomena of leakage, overflow and water leakage.

Description

High-sealing-performance reactor plant gate rubber sealing ring and preparation method thereof
Technical Field
The invention relates to the field of water gate sealing of reactor plants, in particular to a high-sealing rubber sealing ring for a reactor plant gate and a preparation method thereof.
Background
The reactor is a device capable of maintaining a controllable self-sustaining chain type nuclear fission reaction so as to realize the utilization of nuclear energy. The nuclear reactor can generate a self-sustaining chain type nuclear fission process in the nuclear reactor without adding a neutron source by reasonably arranging nuclear fuel. Strictly speaking, the term reactor shall cover fission reactors, fusion reactors, fission fusion hybrid reactors, but in general only fission reactors. In order to improve the safety of a nuclear power unit, relieve accident consequences and simultaneously ensure the requirements of isolating an inspection well, a reactor vertical well and a refueling water pool during unit refueling, a water gate is arranged among the inspection well, the reactor vertical well and the refueling water pool, and the main factor influencing the sealing capability of the water gate is the physical performance of a sealing ring, so that a rubber sealing ring with stable working performance, high sealing performance and better strength needs to be developed.
Disclosure of Invention
The invention aims to provide a high-sealing rubber sealing ring for a reactor plant gate and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high leakproofness reactor factory building gate rubber seal, rubber seal includes according to part by weight: 43-67 parts of rubber raw material, 5-9 parts of polycaprolactone, 9-22 parts of reinforcing filler, 3-5 parts of quartz fiber, 2-6 parts of plasticizer, 1-5 parts of fatty acid modified calcium carbonate, 3-8 parts of nano magnesium oxide, 3-6 parts of silicon micropowder, 1-3 parts of bauxite powder, 1-3 parts of vulcanizing agent, 0.5-2 parts of accelerator and 0.6-1 part of coupling agent.
Preferably, the rubber sealing ring comprises the following components in parts by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent.
Preferably, the rubber raw material is prepared by mixing styrene butadiene rubber, chloroprene rubber and urethane rubber according to the ratio of 2:3: 1.
Preferably, the reinforcing filler is white carbon black, a mixture of reinforcing fibers and diatomite, the ratio of the white carbon black to the reinforcing fibers to the diatomite is 2-5:1-3:3-7, and the reinforcing fibers are carbon reinforcing fibers.
Preferably, the vulcanizing agent is any one of a bis-tetra vulcanizing agent and a bis-penta vulcanizing agent or a mixture of the two.
The invention also provides a preparation method of the high-tightness rubber sealing ring for the reactor plant gate, which comprises the following steps:
s1: the raw materials are prepared according to the parts by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent;
s2: adding the prepared rubber raw material, polycaprolactone, reinforcing filler, quartz fiber, plasticizer, fatty acid modified calcium carbonate, nano magnesium oxide, silica micropowder, bauxite powder, vulcanizing agent, accelerator and coupling agent into mixing and banburying equipment for banburying treatment, and generating a finished product of a rubber compound after the banburying treatment;
s3: and adding the rubber compound finished product into a mold of vulcanization equipment for vulcanization molding treatment to obtain a rubber sealing ring finished product, wherein the processing temperature of the vulcanization equipment is 180-195 ℃, the vulcanization time is 8-15 min, and the vulcanization pressure is 11-12.5 MPa.
Preferably, a vulcanizing agent is required to be added in the banburying treatment process in S2, and the vulcanizing agent is added when the mixing temperature is 110-120 ℃.
Preferably, the mixing and banburying device in the S2 comprises a mixing bin, a conveying device and a banburying device, wherein a blanking hopper is arranged on the top side of the mixing bin, a discharge hole communicated with the conveying device is arranged on the bottom side of the mixing bin, and a mixing assembly is arranged in the mixing bin; conveyor locates and mixes storehouse downside and it and passes through the casing and connect and mix the storehouse, and conveyor is screw conveyer, and screw conveyer's bin outlet communicates in mixing device's import.
Preferably, the mixing component comprises a motor, a first stirring shaft, a second stirring shaft and a first transmission rod, the first stirring shaft and the second stirring shaft are respectively distributed on the upper part and the lower part of the mixing bin in a transverse and vertical manner, and blades are respectively arranged on the first stirring shaft and the second stirring shaft; the motor is fixed at the top end of the shell, the shaft end of the motor is connected with a first transmission rod, the first transmission rod is in transmission connection with the second stirring shaft, and a first helical gear is sleeved on the first transmission rod; the outer side of the mixing bin is provided with a transmission shaft connected with the first stirring shaft, the end part of the transmission shaft is connected with a driving belt wheel, the driving belt wheel is linked with a driven belt wheel through a belt, the axle center of the driven belt wheel is connected with a second transmission rod, and the second transmission rod penetrates through the bottom side of the mixing bin and is connected with a second bevel gear meshed with the first bevel gear.
Preferably, the inner side of the casing is provided with a hot air chamber communicated with the conveying device, the hot air chamber is internally provided with an electric heating plate and fan blades, the fan blades are arranged at the lower part of the electric heating plate and are connected with a rotating rod, the top of the rotating rod is provided with a third bevel gear, and the second driving rod is sleeved with a fourth bevel gear meshed with the third bevel gear.
Compared with the prior art, the invention has the beneficial effects that:
the invention improves the wear resistance and the plugging property of the rubber ring, simultaneously enhances the plasticity and the fluidity of the rubber by using the plasticizer, is convenient for calendaring and extrusion molding operation, simultaneously can reduce the hardness and the stress at definite elongation of the rubber, improves the elasticity, enhances the compression resistance, the ageing resistance and the corrosion resistance of the sealing ring by using the quartz fiber, the reinforcing filler and the like, prolongs the service life of the sealing ring, and effectively prevents the occurrence of the phenomena of leakage, overflow and dripping.
Drawings
FIG. 1 is a schematic view of the overall structure of a mixing and internal-mixing apparatus in example 3 of the present invention;
FIG. 2 is a schematic view of a part of the structure of a mixing and banburying apparatus in example 3 of the present invention.
In the figure: 1. a mixing bin; 101. feeding a hopper; 2. a conveying device; 3. an internal mixing device; 4. a housing; 401. a hot air chamber; 402. an electrical heating plate; 403. a fan blade; 404. rotating the rod; 405. a third bevel gear; 5. a motor; 501. a first drive lever; 502. a first helical gear; 6. a first stirring shaft; 7. a second stirring shaft; 8. a driving pulley; 9. a second transmission rod; 901. a second helical gear; 10. a driven pulley.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: the invention provides a technical scheme that: the utility model provides a high leakproofness reactor factory building gate rubber seal, rubber seal includes according to part by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent.
In the embodiment, the rubber raw material is prepared by mixing styrene butadiene rubber, chloroprene rubber and urethane rubber according to the ratio of 2:3: 1.
In this embodiment, the reinforcing filler is a mixture of white carbon black, reinforcing fibers and diatomaceous earth, the ratio of white carbon black, reinforcing fibers and diatomaceous earth is 2:2:5, and the reinforcing fibers are carbon reinforcing fibers.
In the embodiment, the vulcanizing agent is any one of a bis-tetra vulcanizing agent and a bis-penta vulcanizing agent or a mixture of two.
The embodiment also provides a preparation method of the high-tightness rubber sealing ring for the reactor plant gate, which comprises the following steps:
s1: the raw materials are prepared according to the parts by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent;
s2: adding the prepared rubber raw material, polycaprolactone, reinforcing filler, quartz fiber, plasticizer, fatty acid modified calcium carbonate, nano magnesium oxide, silica micropowder, bauxite powder, vulcanizing agent, accelerator and coupling agent into mixing and banburying equipment for banburying treatment, and generating a finished product of a rubber compound after the banburying treatment;
s3: and adding the rubber compound finished product into a mold of vulcanization equipment for vulcanization molding treatment to obtain a rubber sealing ring finished product, wherein the processing temperature of the vulcanization equipment is 180-195 ℃, the vulcanization time is 8-15 min, and the vulcanization pressure is 11-12.5 MPa.
In the embodiment, a vulcanizing agent is required to be added in the banburying treatment process in S2, and the vulcanizing agent is added when the mixing temperature is 110-120 ℃.
Example 2: the invention provides a technical scheme that: the utility model provides a high leakproofness reactor factory building gate rubber seal, rubber seal includes according to part by weight: 54 parts of rubber raw material, 7 parts of polycaprolactone, 14 parts of reinforcing filler, 3 parts of quartz fiber, 4 parts of plasticizer, 3 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 5 parts of silicon micropowder, 2 parts of bauxite powder, 3 parts of vulcanizing agent, 1 part of accelerator and 0.8 part of coupling agent.
The embodiment also provides a preparation method of the high-tightness rubber sealing ring for the reactor plant gate, which comprises the following steps:
s1: the raw materials are prepared according to the parts by weight: 54 parts of rubber raw material, 7 parts of polycaprolactone, 14 parts of reinforcing filler, 3 parts of quartz fiber, 4 parts of plasticizer, 3 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 5 parts of silicon micropowder, 2 parts of bauxite powder, 3 parts of vulcanizing agent, 1 part of accelerator and 0.8 part of coupling agent;
s2: adding the prepared rubber raw material, polycaprolactone, reinforcing filler, quartz fiber, plasticizer, fatty acid modified calcium carbonate, nano magnesium oxide, silica micropowder, bauxite powder, vulcanizing agent, accelerator and coupling agent into mixing and banburying equipment for banburying treatment, and generating a finished product of a rubber compound after the banburying treatment;
s3: and adding the rubber compound finished product into a mold of vulcanization equipment for vulcanization molding treatment to obtain a rubber sealing ring finished product, wherein the processing temperature of the vulcanization equipment is 180-195 ℃, the vulcanization time is 8-15 min, and the vulcanization pressure is 11-12.5 MPa.
In this embodiment, quartz fiber, reinforcing filler etc. have strengthened the compressive deformation performance and the ageing resistance and corrosion resistance performance of sealing washer, have improved the life of sealing washer, the effectual emergence that prevents the phenomenon of running, bubbling and leaking.
Example 3: the invention provides a technical scheme that: in this embodiment, referring to fig. 1-2, the mixing and banburying apparatus in S2 includes a mixing bin 1, a conveying device 2 and a banburying device 3, wherein a discharge hopper 101 is disposed on a top side of the mixing bin 1, a discharge port communicated with the conveying device 2 is disposed on a bottom side of the mixing bin 1, and a mixing assembly is disposed in the mixing bin 1; conveyor 2 locates and mixes 1 downside in storehouse and it connects and mixes storehouse 1 through casing 4, and conveyor 2 is screw conveyer, and screw conveyer's bin outlet communicates in internal mixing device 3's import.
In this embodiment, the mixing assembly includes a motor 5, a first stirring shaft 6, a second stirring shaft 7 and a first transmission rod 501, the first stirring shaft 6 and the second stirring shaft 7 are respectively distributed in the upper part and the lower part of the mixing bin 1 horizontally and vertically, and the first stirring shaft 6 and the second stirring shaft 7 are both provided with blades; the motor 5 is fixed at the top end of the machine shell 4, the shaft end of the motor is connected with a first transmission rod 501, the first transmission rod 501 is in transmission connection with the second stirring shaft 7, and a first helical gear 502 is sleeved on the first transmission rod 501; the outer side of the mixing bin 1 is provided with a transmission shaft connected with a first stirring shaft 6, the end part of the transmission shaft is connected with a driving belt wheel 8, the driving belt wheel 8 is linked with a driven belt wheel 10 through a belt, the axle center of the driven belt wheel 10 is connected with a second transmission rod 9, and the second transmission rod 9 penetrates through the bottom side of the mixing bin 1 and is connected with a second bevel gear 901 meshed with the first bevel gear.
In this embodiment, a hot air chamber 401 communicated with the conveying device 2 is disposed inside the housing 4, an electric heating plate 402 and a fan blade 403 are disposed inside the hot air chamber 401, the fan blade 403 is disposed below the electric heating plate 402 and connected to a rotating rod 404, a third bevel gear 405 is disposed on the top of the rotating rod 404, and a fourth bevel gear engaged with the third bevel gear 405 is disposed on the second transmission rod 9.
In this embodiment, through setting up mixing bunker 1, conveyor 2 and internal mixing device 3, wherein mixing bunker 1 can be premixed the material through mixing assembly, mixing assembly is by the operation of motor 5 drive first transfer line 501, and make first transfer line 501 drive second (mixing) shaft 7 stir mixing bunker 1 lower part, mesh transmission second transfer line 9 through first transfer line 501, make second transfer line 9 drive driven pulley 10 and linkage driving pulley 8 make first (mixing) shaft 6 operate, stir mixing bunker 1 upper portion through first (mixing) shaft 6. The stirred materials enter a conveying device 2 and are conveyed to an internal mixing device 3 by the conveying device 2 for internal mixing treatment, because the raw materials are mixed in the banburying device 3, the materials are easily cooled because the conveying pipeline is laid for a long time, the material needs to be heated again when being mixed, which is not favorable for the continuous processing of the material, and in addition, the heating to a certain temperature again needs to consume a certain amount of heat and waste resources, by arranging the hot air chamber 401, the fan blade 403 in the hot air chamber 401 can rotate along with the operation of the motor 5, the fan blade 403 blows air and blows heat generated by the electric heating plate 402 into the conveying device 2, the raw materials on the inner side of the conveying device 2 are preheated, so that the materials added into the internal mixer have certain initial temperature, the heating time of the mixing roll is reduced, and the overall production efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a high leakproofness reactor factory building gate rubber seal, its characterized in that, rubber seal includes according to part by weight: 43-67 parts of rubber raw material, 5-9 parts of polycaprolactone, 9-22 parts of reinforcing filler, 3-5 parts of quartz fiber, 2-6 parts of plasticizer, 1-5 parts of fatty acid modified calcium carbonate, 3-8 parts of nano magnesium oxide, 3-6 parts of silicon micropowder, 1-3 parts of bauxite powder, 1-3 parts of vulcanizing agent, 0.5-2 parts of accelerator and 0.6-1 part of coupling agent.
2. The high-tightness rubber sealing ring for the reactor plant gate of claim 1, which comprises the following components in parts by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent.
3. The high-leakproofness rubber sealing ring for the reactor plant gate according to claim 1, wherein the rubber raw materials are styrene butadiene rubber, chloroprene rubber and urethane rubber which are mixed according to a ratio of 2:3: 1.
4. The high-sealability rubber seal ring for reactor plant gates according to claim 1, wherein the reinforcing filler is a mixture of white carbon black, reinforcing fibers and diatomite, the ratio of white carbon black to reinforcing fibers to diatomite is 2-5:1-3:3-7, and the reinforcing fibers are carbon reinforcing fibers.
5. The high-tightness rubber sealing ring for the reactor building gates of claim 1, wherein the vulcanizing agent is any one of a bis-tetra vulcanizing agent, a bis-penta vulcanizing agent or a mixture of two vulcanizing agents.
6. The preparation method of the high-tightness rubber sealing ring for the reactor plant gate according to any one of claims 1 to 5, characterized by comprising the following steps:
s1: the raw materials are prepared according to the parts by weight: 47 parts of rubber raw material, 6 parts of polycaprolactone, 15 parts of reinforcing filler, 3 parts of quartz fiber, 3 parts of plasticizer, 2 parts of fatty acid modified calcium carbonate, 5 parts of nano magnesium oxide, 4 parts of silica powder, 1 part of bauxite powder, 1 part of vulcanizing agent, 0.8 part of accelerator and 0.8 part of coupling agent;
s2: adding the prepared rubber raw material, polycaprolactone, reinforcing filler, quartz fiber, plasticizer, fatty acid modified calcium carbonate, nano magnesium oxide, silica micropowder, bauxite powder, vulcanizing agent, accelerator and coupling agent into mixing and banburying equipment for banburying treatment, and generating a finished product of a rubber compound after the banburying treatment;
s3: and adding the rubber compound finished product into a mold of vulcanization equipment for vulcanization molding treatment to obtain a rubber sealing ring finished product, wherein the processing temperature of the vulcanization equipment is 180-195 ℃, the vulcanization time is 8-15 min, and the vulcanization pressure is 11-12.5 MPa.
7. The preparation method of the high-sealing rubber seal ring for the reactor plant gate according to claim 6, wherein a vulcanizing agent is added in the internal mixing process in S2, and the vulcanizing agent is added at a mixing temperature of 110-120 ℃.
8. The preparation method of the rubber sealing ring for the gate of the high-tightness reactor factory building according to claim 6, wherein the mixing and banburying device in S2 comprises a mixing bin (1), a conveying device (2) and a banburying device (3), wherein a discharge hopper (101) is arranged at the top side of the mixing bin (1), a discharge port communicated with the conveying device (2) is arranged at the bottom side of the mixing bin (1), and a mixing component is arranged in the mixing bin (1); conveyor (2) are located and are mixed storehouse (1) downside and it connects and mix storehouse (1) through casing (4), and conveyor (2) are screw conveyer, and screw conveyer's bin outlet communicates in mixing device's (3) import.
9. The preparation method of the rubber sealing ring for the high-sealing reactor plant gate according to claim 8, wherein the mixing component comprises a motor (5), a first stirring shaft (6), a second stirring shaft (7) and a first transmission rod (501), the first stirring shaft (6) and the second stirring shaft (7) are respectively and transversely and vertically distributed at the upper part and the lower part of the mixing bin (1), and blades are respectively arranged on the first stirring shaft (6) and the second stirring shaft (7); the motor (5) is fixed at the top end of the machine shell (4), the shaft end of the motor is connected with a first transmission rod (501), the first transmission rod (501) is in transmission connection with a second stirring shaft (7), and a first bevel gear (502) is sleeved on the first transmission rod (501); the outer side of the mixing bin (1) is provided with a transmission shaft connected with a first stirring shaft (6), the end part of the transmission shaft is connected with a driving belt wheel (8), the driving belt wheel (8) is linked with a driven belt wheel (10) through a belt, the axle center of the driven belt wheel (10) is connected with a second transmission rod (9), and the second transmission rod (9) penetrates through the bottom side of the mixing bin (1) and is connected with a second bevel gear (901) meshed with the first bevel gear.
10. The preparation method of the rubber sealing ring for the high-tightness reactor workshop gate according to claim 9, wherein a hot air chamber (401) communicated with the conveying device (2) is arranged inside the casing (4), an electric heating plate (402) and fan blades (403) are arranged in the hot air chamber (401), the fan blades (403) are arranged at the lower part of the electric heating plate (402) and are connected with a rotating rod (404), a third bevel gear (405) is arranged at the top of the rotating rod (404), and a fourth bevel gear meshed with the third bevel gear (405) is sleeved on the second driving rod (9).
CN202011112500.6A 2020-10-16 2020-10-16 High-sealing-performance reactor plant gate rubber sealing ring and preparation method thereof Pending CN112250923A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115179569A (en) * 2022-08-19 2022-10-14 李兴兴 Preparation process of anticorrosive rubber ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115179569A (en) * 2022-08-19 2022-10-14 李兴兴 Preparation process of anticorrosive rubber ring

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