CN112140493A - Production process for preparing new butyl rubber inner tube by utilizing waste butyl rubber inner tube - Google Patents
Production process for preparing new butyl rubber inner tube by utilizing waste butyl rubber inner tube Download PDFInfo
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- CN112140493A CN112140493A CN202010913058.0A CN202010913058A CN112140493A CN 112140493 A CN112140493 A CN 112140493A CN 202010913058 A CN202010913058 A CN 202010913058A CN 112140493 A CN112140493 A CN 112140493A
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
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- 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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
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- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
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- 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
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- 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
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B2017/0424—Specific disintegrating techniques; devices therefor
- B29B2017/0476—Cutting or tearing members, e.g. spiked or toothed cylinders or intermeshing rollers
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- 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
- B29L2030/00—Pneumatic or solid tyres or parts thereof
- B29L2030/008—Innerliners
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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Polymers & Plastics (AREA)
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Abstract
The invention relates to a production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube, which comprises the following steps: s1, selecting materials; s2, crushing and atomizing; s3, drying; s4, batching: selecting 50-80 parts of butyl rubber particles, 10-15 parts of ethylene propylene diene monomer, 3-5 parts of zinc oxide, 6-8 parts of paraffin oil, 1-2 parts of sulfur, 1-2 parts of a softener, 1-2 parts of carbon black and 1-2 parts of resin according to parts by weight; s5, high-temperature mixing; s6, filtering and extruding; s7, connecting; and S8, vulcanizing. The invention has the advantages that: the air tightness, the structural strength and the smaller permanent deformation of the butyl rubber inner tube are ensured.
Description
The technical field is as follows:
the invention relates to the field of butyl rubber inner tubes, in particular to a production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube.
Background art:
the butyl rubber inner tube has good air tightness, heat resistance, elasticity, aging resistance and small permanent deformation, and the butyl rubber inner tube has good colloid self-closing performance and high air tightness. In order to ensure the production cost of the butyl rubber inner tube, a plurality of manufacturers use the waste butyl rubber inner tube to prepare a new butyl rubber inner tube. However, in the existing process of manufacturing a new butyl rubber inner tube by using a waste butyl rubber inner tube, for example, a method for manufacturing a new inner tube raw material by using a waste butyl rubber inner tube in patent No. 200710010880.0 has the following defects:
1. the waste butyl rubber inner tube is cleaned and aired and then crushed to form rubber material particles, and the rubber material particles are subjected to burdening desulfurization treatment, so that the surface of the waste butyl rubber is not easy to clean, impurity and dust are difficult to remove completely, later vulcanization is not facilitated, the permanent deformation of a finished butyl rubber inner tube is increased, and the air tightness of the butyl rubber inner tube is also influenced by the impurity and dust;
2. in the crushing process, the inner tube of the butyl rubber is subjected to impact pulling force, the inner tube of the butyl rubber generates heat during stretching, the elastic stretching force of the inner tube of the butyl rubber is increased after the inner tube of the butyl rubber is subjected to the heat, the inner tube of the butyl rubber is not easy to crush, and small-particle-size butyl rubber particles cannot be formed, so that the structural strength of the inner tube of the butyl rubber is influenced; secondly, after rubber is stretched and generates heat, gas is generated, and the gas-mixed butyl rubber particles cannot discharge gas or water vapor in a natural state, so that the butyl rubber particles with a microporous structure are formed, and the joint quality of the butyl rubber inner tube and the air tightness of the butyl rubber inner tube are influenced.
Therefore, the technical problem in the field of the technology is to prepare a new inner tube of butyl rubber by using a waste inner tube of butyl rubber as a raw material so as to ensure the air tightness, smaller permanent deformation and structural strength of the prepared inner tube of butyl rubber.
The invention content is as follows:
the invention aims to overcome the defects and provide a production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube, so that the air tightness, the structural strength and the smaller permanent deformation of the butyl rubber inner tube are ensured.
The purpose of the invention is realized by the following technical scheme: a production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube comprises the following steps:
s1, selecting materials: removing inflating valves and natural rubber patches from waste butyl rubber inner tubes, preliminarily cleaning and drying in the sun;
s2, crushing and atomizing: putting the waste butyl rubber inner tubes into special crushing and atomizing equipment for crushing, simultaneously carrying out atomizing and cooling on crushed butyl rubber particles, and carrying out centrifugal dehydration and degassing treatment on the bottom in the crushing and atomizing equipment to obtain crushed and cleaned butyl rubber particles and butyl rubber particles;
s3, drying: drying the butyl rubber particles prepared in the step S2;
s4, batching: selecting 50-80 parts of butyl rubber particles, 10-15 parts of ethylene propylene diene monomer, 3-5 parts of zinc oxide, 6-8 parts of paraffin oil, 1-2 parts of sulfur, 1-2 parts of a softener, 1-2 parts of carbon black and 1-2 parts of resin according to parts by weight;
s5, high-temperature mixing: placing butyl rubber particles and ethylene propylene diene monomer rubber in the proportion in a mixing mill for plastication for 3min, adding zinc oxide and 1/2 carbon black for mixing for 5min, then adding paraffin oil, a softener, resin and 1/2 carbon black for mixing for 5min, wherein the mixing temperature is 180-190 ℃ and the rotating speed is 50-60r/min, and obtaining filter rubber;
s6, filtering and extruding: adding sulfur, mixing the mixed filter rubber, filtering, and performing hot-refining extrusion at the temperature of 100-120 ℃ to obtain a butyl rubber inner tube finished product;
s7, joint: performing joint treatment on the butyl rubber inner tube finished product prepared in the step S6 through a joint machine, wherein the butt joint time is 5-8S, the joint current is 6-8A, and the parking time is 30-40 min;
s8, vulcanization: and putting the jointed butyl rubber inner tube finished product into a vulcanizing machine for vulcanization, and inspecting, packaging and warehousing the vulcanized inner tube.
The invention is further improved in that: in step S2, the crushing and atomizing device comprises
The shell mechanism comprises a crushing shell and a feeding hole arranged on the crushing shell;
the crushing mechanism is arranged in the crushing shell and comprises a fixed rod fixedly connected with the crushing shell, a rotating rod is sleeved outside the fixed rod respectively, the rotating rod is movably connected with the fixed rod through a bearing, the rotating rod is driven by a motor to rotate, the rotating directions of the two rotating rods are opposite, a plurality of bevel gears are sleeved on the rotating rod, the bevel gears on the two rotating rods are staggered with each other, a plurality of atomizing heads which are sequentially and symmetrically arranged are arranged on the two fixed rods, the atomizing heads on the two fixed rods spray obliquely in opposite directions, a plurality of through holes for allowing the corresponding atomizing heads to spray are formed in the outer circumference of the rotating rod, the circumferences of the through holes and the like are distributed on the outer circumference of the rotating rod, and the atomizing heads pass through the through holes along with;
the filtering mechanism is arranged in the crushing shell and comprises a rotary table arranged outside the crushing mechanism, the inner wall of the rotary table is provided with a plurality of filtering cavities, and a partition plate is arranged between every two adjacent filtering cavities;
the utility model provides a moisture mechanism takes off, the butyl rubber granule after the breakage filters to the mechanism of taking off water gas through the filter chamber in, the butyl rubber granule that does not filter to the mechanism of taking off water gas along with the carousel upwards rotates and throws down and carry out broken processing once more in the broken mechanism, it arranges broken casing in and places filter mechanism's below position to take off water gas mechanism, it constructs including the vibration subassembly of taking off water gas case and arranging in the water gas case to take off water gas mechanism, filter screen and the water storage box that distribute about having in the water gas case, the lower extreme of water storage box has the outlet pipe, buffer assembly has between the bottom of water gas case and broken casing, the butyl rubber granule after the breakage of mechanism realizes taking off the moisture along with the vibration of vibration subassembly on filter screen, moisture in the butyl rubber granule flows to the water storage box in the filter screen and discharges from the outlet pipe.
The invention is further improved in that: the vibration subassembly includes vibrating motor, the loose axle of being connected with the dehydration case, the loose axle is connected with vibrating motor, be equipped with a plurality of vibration groups on the loose axle, vibration group is including vibrating the box body and arranging the main vibration tooth in the vibrating box body in, vice vibration tooth, main vibration tooth and vice vibration tooth intermeshing, main vibration tooth cover is established on the loose axle, and the both sides of main vibration tooth are equipped with main weight respectively, the coaxial vice weight that is equipped with in both sides of vice vibration tooth, vice weight, vice vibration tooth passes through vice loose axle and vibrating box body swing joint.
The invention is further improved in that: the main heavy hammer and the auxiliary heavy hammer are both of sector structures, the main heavy hammer is arranged eccentrically to the movable shaft, and the auxiliary heavy hammer is arranged eccentrically to the auxiliary movable shaft.
The invention is further improved in that: the buffer component comprises a plurality of support rods arranged right below the dehydration air box, and springs are arranged between the support rods and the dehydration air box.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the waste butyl rubber inner tube is crushed by extrusion to form butyl rubber particles, so that the crushing is thorough, the crushed butyl rubber particles are atomized and cooled, and then are subjected to centrifugal dehydration and degassing treatment at the bottom in crushing and atomizing equipment, the atomization and cooling not only avoids rubber particles from generating heat when the crushed butyl rubber is extruded and crushed, but also ensures the structural strength of the crushed butyl rubber particles, and also plays a role in quickly cleaning the crushed butyl rubber particles, so that the cleaning effect is better after the crushed butyl rubber inner tube is cleaned, and the air tightness, the structural strength and smaller permanent deformation of the butyl rubber inner tube are ensured.
2. The broken butyl rubber particles fall onto a filter screen plate of a dehydration gas mechanism, and under the action of a vibration assembly, the movement impact friction among the butyl rubber particles is increased, so that the butyl rubber particles can quickly remove water vapor and dust impurities, and the air tightness of the butyl rubber inner tube is further ensured.
Description of the drawings:
fig. 1 is a schematic structural view of the crushing and atomizing apparatus of the present invention.
Fig. 2 is a schematic structural diagram of a vibrating assembly in the moisture removing mechanism of the present invention.
Reference numbers in the figures:
1-a shell mechanism, 2-a crushing mechanism, 3-a filtering mechanism and 4-a moisture removing mechanism;
11-crushing shell, 12-feeding hole;
21-rotating rod, 22-fixed rod, 24-helical gear, 25-spray head and 26-through hole;
31-a rotary table, 32-a filter cavity and 33-a clapboard;
41-a dehydration gas tank, 42-a vibration component, 43-a filter screen plate, 44-a water storage box, 45-a water outlet pipe and 46-a buffer component;
421-vibration motor, 422-movable shaft, 423-main vibration tooth, 424-auxiliary vibration tooth, 425-vibration box, 426-main weight, 427-auxiliary weight, 428-auxiliary movable shaft, 461-support rod, 462-spring.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
The invention relates to an implementation mode of a production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube, which comprises the following steps:
s1, selecting materials: removing inflating valves and natural rubber patches from waste butyl rubber inner tubes, preliminarily cleaning and drying in the sun;
s2, crushing and atomizing: putting the waste butyl rubber inner tubes into special crushing and atomizing equipment for crushing, simultaneously carrying out atomizing and cooling on crushed butyl rubber particles, and carrying out centrifugal dehydration and degassing treatment on the bottom in the crushing and atomizing equipment to obtain crushed and cleaned butyl rubber particles and butyl rubber particles;
s3, drying: drying the butyl rubber particles prepared in the step S2;
s4, batching: selecting 50-80 parts of butyl rubber particles, 10-15 parts of ethylene propylene diene monomer, 3-5 parts of zinc oxide, 6-8 parts of paraffin oil, 1-2 parts of sulfur, 1-2 parts of a softener, 1-2 parts of carbon black and 1-2 parts of resin according to parts by weight;
s5, high-temperature mixing: placing butyl rubber particles and ethylene propylene diene monomer rubber in the proportion in a mixing mill for plastication for 3min, adding zinc oxide and 1/2 carbon black for mixing for 5min, then adding paraffin oil, a softener, resin and 1/2 carbon black for mixing for 5min, wherein the mixing temperature is 180-190 ℃ and the rotating speed is 50-60r/min, and obtaining filter rubber;
s6, filtering and extruding: adding sulfur, mixing the mixed filter rubber, filtering, and performing hot-refining extrusion at the temperature of 100-120 ℃ to obtain a butyl rubber inner tube finished product;
s7, joint: performing joint treatment on the butyl rubber inner tube finished product prepared in the step S6 through a joint machine, wherein the butt joint time is 5-8S, the joint current is 6-8A, and the parking time is 30-40 min;
s8, vulcanization: and putting the jointed butyl rubber inner tube finished product into a vulcanizing machine for vulcanization, and inspecting, packaging and warehousing the vulcanized inner tube.
According to the invention, the waste butyl rubber inner tube is crushed by extrusion to form butyl rubber particles, so that the crushing is thorough, the crushed butyl rubber particles are atomized and cooled, and then are subjected to centrifugal dehydration and degassing treatment at the bottom in crushing and atomizing equipment, the atomization and cooling not only avoids rubber particles from generating heat when the crushed butyl rubber is extruded and crushed, but also ensures the structural strength of the crushed butyl rubber particles, and also plays a role in quickly cleaning the crushed butyl rubber particles, so that the cleaning effect is better after the crushed butyl rubber inner tube is cleaned, and the air tightness, the structural strength and smaller permanent deformation of the butyl rubber inner tube are ensured.
In step S2, as shown in FIG. 1, the crushing and atomizing device includes
The shell mechanism 1 comprises a crushing shell 11 and a feeding hole 12 arranged on the crushing shell 11;
the crushing mechanism 2 is arranged in the crushing shell 11, the crushing mechanism 2 comprises a fixed rod 22 fixedly connected with the crushing shell 11, the outer parts of the fixed rod 22 are respectively sleeved with a rotating rod 21, the rotating rod 21 is movably connected with the fixed rod 22 through a bearing, the rotating rod 21 is driven by a motor to rotate, the rotating directions of the two rotating rods 21 are arranged in opposite directions, the rotating rod 21 is sleeved with a plurality of bevel gears 24, the bevel gears 24 on the two rotating rods 21 are staggered, the two fixed rods 22 are provided with a plurality of sequentially and symmetrically arranged atomizing heads 25, the atomizing heads 25 on the two fixed rods 22 spray in opposite inclined directions, the outer circumference of the rotating rod 21 is provided with a plurality of through holes 26 for accommodating the corresponding atomizing heads 25 to spray, the plurality of through holes 26 are distributed on the outer circumference of the rotating rod 21 in the same circumference, and the atomizing heads 25 pass through the through holes 26;
the filtering mechanism 3 is arranged in the crushing shell 11, the filtering mechanism 3 comprises a rotary table 31 arranged outside the crushing shell 2, the inner wall of the rotary table 31 is provided with a plurality of filtering cavities 32, and a partition plate 33 is arranged between every two adjacent filtering cavities 32;
a water vapor removing mechanism 4, wherein the crushed butyl rubber particles are filtered into the water vapor removing mechanism 4 through a filter chamber 32, the butyl rubber particles which are not filtered to the dehydration mechanism 4 rotate upwards along with the turntable 31 and fall into the crushing mechanism 2 for crushing again, the dehydration mechanism 4 is arranged at the lower position of the crushing shell 11 and is arranged at the filtering mechanism 3, the dehydration mechanism 4 comprises a dehydration air tank 41 and a vibration component 42 arranged in the dehydration air tank 41, a filter screen plate 43 and a water storage box 44 which are distributed up and down are arranged in the dehydration air tank 41, a water outlet pipe 45 is arranged at the lower end of the water storage box 44, a buffer component 46 is arranged between the dehydration air tank 41 and the bottom of the crushing shell 11, the butyl rubber particles crushed by the crushing mechanism 2 realize dehydration on the filter screen plate 43 along with the vibration of the vibration component 42, the water in the butyl rubber particles flows into the water storage box 44 through the filter screen plate 43 and is discharged from the water outlet pipe 45.
As shown in fig. 2, the vibration assembly 42 includes a vibration motor 421, a movable shaft 422 connected to the dehydration air tank 41, the movable shaft 422 is connected to the vibration motor 421, a plurality of vibration groups are disposed on the movable shaft 422, each vibration group includes a vibration box 425, and a main vibration tooth 423 and an auxiliary vibration tooth 424 disposed in the vibration box 425, the main vibration tooth 423 and the auxiliary vibration tooth 424 are engaged with each other, the main vibration tooth 423 is sleeved on the movable shaft 422, and both sides of the main vibration tooth 423 are respectively provided with a main weight 426, both sides of the auxiliary vibration tooth 424 are coaxially provided with an auxiliary weight 427, and the auxiliary weights 427 and the auxiliary vibration tooth 424 are movably connected to the vibration box 425 through an auxiliary movable shaft 428.
The main weight 426 and the auxiliary weight 427 are both fan-shaped, the main weight 426 is disposed eccentrically to the movable shaft 422, and the auxiliary weight 427 is disposed eccentrically to the auxiliary movable shaft 428.
The buffer assembly 46 includes a plurality of support rods 461 disposed directly below the dehydration gas tank 41, and springs 462 are disposed between the support rods 461 and the dehydration gas tank 41.
The working principle is as follows: waste butyl rubber inner tubes enter the crushing mechanism 2 through the feeding hole 12, are crushed through mutual extrusion of the two rows of bevel gears 24 to form butyl rubber particles, the falling butyl rubber particles are cooled and washed through spraying of the spraying head 25 and fall into the filtering cavity 32 of the filtering mechanism 3, small particles fall into the dehydrating mechanism through meshes of the filtering cavity 32, large particles move upwards along with rotation of the turntable 31 and fall into the crushing mechanism 2 again under the action of gravity to be crushed, the crushed small particle size of the waste butyl rubber inner tubes is realized, and the smaller the particle size is, the higher the structural strength is; the broken butyl rubber particles fall onto a filter screen plate 43 of the gas dehydration mechanism 4, and under the action of the vibration component 42, the movement impact friction among the butyl rubber particles is increased, so that the butyl rubber particles can rapidly remove water gas and dust impurities, and the air tightness of the butyl rubber inner tube is further ensured.
In this application, can set up the heating pipe on the inner wall that the dehydration case 41 is close to filter plate 43, carry out rapid draing to the butyl rubber granule on filter plate 43.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A production process for preparing a new butyl rubber inner tube by utilizing a waste butyl rubber inner tube is characterized by comprising the following steps of:
s1, selecting materials: removing inflating valves and natural rubber patches from waste butyl rubber inner tubes, preliminarily cleaning and drying in the sun;
s2, crushing and atomizing: putting the waste butyl rubber inner tubes into special crushing and atomizing equipment for crushing, simultaneously carrying out atomizing and cooling on crushed butyl rubber particles, and carrying out centrifugal dehydration and degassing treatment on the bottom in the crushing and atomizing equipment to obtain crushed and cleaned butyl rubber particles and butyl rubber particles;
s3, drying: drying the butyl rubber particles prepared in the step S2;
s4, batching: selecting 50-80 parts of butyl rubber particles, 10-15 parts of ethylene propylene diene monomer, 3-5 parts of zinc oxide, 6-8 parts of paraffin oil, 1-2 parts of sulfur, 1-2 parts of a softener, 1-2 parts of carbon black and 1-2 parts of resin according to parts by weight;
s5, high-temperature mixing: placing butyl rubber particles and ethylene propylene diene monomer rubber in the proportion in a mixing mill for plastication for 3min, adding zinc oxide and 1/2 carbon black for mixing for 5min, then adding paraffin oil, a softener, resin and 1/2 carbon black for mixing for 5min, wherein the mixing temperature is 180-190 ℃ and the rotating speed is 50-60r/min, and obtaining filter rubber;
s6, filtering and extruding: adding sulfur, mixing the mixed filter rubber, filtering, and performing hot-refining extrusion at the temperature of 100-120 ℃ to obtain a butyl rubber inner tube finished product;
s7, joint: performing joint treatment on the butyl rubber inner tube finished product prepared in the step S6 through a joint machine, wherein the butt joint time is 5-8S, the joint current is 6-8A, and the parking time is 30-40 min;
s8, vulcanization: and putting the jointed butyl rubber inner tube finished product into a vulcanizing machine for vulcanization, and inspecting, packaging and warehousing the vulcanized inner tube.
2. The process of claim 1, wherein in step S2, the crushing and atomizing equipment comprises a device for crushing and atomizing waste butyl rubber inner tubes
The shell mechanism (1) comprises a crushing shell (11) and a feeding hole (12) arranged on the crushing shell (11);
a crushing mechanism (2), crushing mechanism (2) is arranged in crushing casing (11), crushing mechanism (2) include with crushing casing (11) fixed connection's dead lever (22), the outside of dead lever (22) is equipped with dwang (21) respectively, through bearing swing joint between dwang (21) and dead lever (22), dwang (21) realize rotating through a motor drive, the direction of rotation of two dwang (21) sets up in opposite directions, the cover is equipped with a plurality of helical gear (24) on dwang (21), helical gear (24) on two dwang (21) misplace each other, are equipped with a plurality of atomising heads (25) that symmetry set up in proper order on two dead lever (22), atomising head (25) on two dead lever (22) spray to the slope in opposite directions, have on the outer circumference of dwang (21) and hold corresponding atomising head (25) to carry out a plurality of through-hole (26) of spraying, the through holes (26) are distributed on the outer circumference of the rotating rod (21) in an equal circumference mode, and the spray head (25) penetrates through the through holes (26) to spray in an upward inclined mode along with the rotation of the rotating rod (21);
the filter mechanism (3) is arranged in the crushing shell (11), the filter mechanism (3) comprises a rotary disc (31) arranged outside the crushing shell (2), the inner wall of the rotary disc (31) is provided with a plurality of filter cavities (32), and a partition plate (33) is arranged between every two adjacent filter cavities (32);
a moisture mechanism (4) takes off, and the butyl rubber granule after the breakage filters to the moisture mechanism (4) through filter chamber (32), does not filter the butyl rubber granule to moisture mechanism (4) and along with carousel (31) upwards rotates and throw and fall to broken mechanism (2) in and break broken processing once more, moisture mechanism (4) are arranged in broken casing (11) and are arranged in the below position of filter mechanism (3), moisture mechanism (4) are including dehydration case (41) and arrange vibration subassembly (42) in dehydration case (41), filter screen board (43) and water storage box (44) that distribute about having in dehydration case (41), the lower extreme of water storage box (44) has outlet pipe (45), have buffer assembly (46) between the bottom of dehydration case (41) and broken casing (11), the butyl rubber granule after the breakage of broken mechanism (2) is at filter screen board (43) along with the vibration of vibration subassembly (42) vibration screen board (43) ) And moisture in the butyl rubber particles flows into the water storage box (44) through the filter screen plate (43) and is discharged from the water outlet pipe (45).
3. The production process of the new butyl rubber inner tube by using the waste butyl rubber inner tube according to claim 2, it is characterized in that the vibration component (42) comprises a vibration motor (421) and a movable shaft (422) connected with the dehydration air box (41), the movable shaft (422) is connected with a vibration motor (421), a plurality of vibration groups are arranged on the movable shaft (422), the vibration group comprises a vibration box body (425) and a main vibration tooth (423) and an auxiliary vibration tooth (424) which are arranged in the vibration box body (425), the main vibration teeth (423) are meshed with the auxiliary vibration teeth (424), the main vibration teeth (423) are sleeved on the movable shaft (422), and both sides of the main vibration tooth (423) are respectively provided with a main weight (426), both sides of the auxiliary vibration tooth (424) are coaxially provided with an auxiliary weight (427), the auxiliary heavy hammer (427) and the auxiliary vibrating teeth (424) are movably connected with the vibrating box body (425) through an auxiliary movable shaft (428).
4. The process for producing new butyl rubber inner tubes by using waste butyl rubber inner tubes as claimed in claim 3, wherein the main weight (426) and the auxiliary weight (427) are both fan-shaped, the main weight (426) is eccentrically arranged on the movable shaft (422), and the auxiliary weight (427) is eccentrically arranged on the auxiliary movable shaft (428).
5. The production process for preparing the new butyl rubber inner tube by using the waste butyl rubber inner tube is characterized in that the buffer assembly (46) comprises a plurality of support rods (461) which are arranged right below the dehydrated air tank (41), and a spring (462) is arranged between each support rod (461) and the dehydrated air tank (41).
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| CN114605748A (en) * | 2022-04-13 | 2022-06-10 | 南通顺驰橡胶制品有限公司 | Preparation process of environment-friendly butyl rubber inner tube material and rubber filter |
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