WO2005116115A1 - シーリング剤の処理方法及びシーリング剤処理装置 - Google Patents
シーリング剤の処理方法及びシーリング剤処理装置 Download PDFInfo
- Publication number
- WO2005116115A1 WO2005116115A1 PCT/JP2005/009612 JP2005009612W WO2005116115A1 WO 2005116115 A1 WO2005116115 A1 WO 2005116115A1 JP 2005009612 W JP2005009612 W JP 2005009612W WO 2005116115 A1 WO2005116115 A1 WO 2005116115A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sealing agent
- liquid
- treating
- solid
- agent
- Prior art date
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Classifications
-
- 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
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/16—Auto-repairing or self-sealing arrangements or agents
- B29C73/166—Devices or methods for introducing sealing compositions into articles
-
- 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
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/24—Apparatus or accessories not otherwise provided for
-
- 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
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/02—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using liquid or paste-like material
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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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10666—Automatic sealing of punctures [e.g., self-healing, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10666—Automatic sealing of punctures [e.g., self-healing, etc.]
- Y10T152/10675—Using flowable coating or composition
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10666—Automatic sealing of punctures [e.g., self-healing, etc.]
- Y10T152/10675—Using flowable coating or composition
- Y10T152/10684—On inner surface of tubeless tire
Definitions
- the present invention relates to a sealing agent treatment method and a sealing agent treatment device for collecting and treating a sealing agent from a used sealing agent, and more particularly, to a sealing agent treatment device, and more particularly, to a liquid injected into a punctured pneumatic tire.
- the present invention relates to a sealing agent processing method and a sealing agent processing apparatus which are optimal for processing a used sealing agent.
- This kit includes a sealing agent (repair liquid) that is injected into a pneumatic tire mounted on a four-wheeled vehicle, a two-wheeled vehicle, or the like when the tire is punctured.
- Sealing 1J is a blend of latex with natural rubber or synthetic rubber, or a mixture of both, water, and an antifreeze such as ethylene dalicol / polypropylene dalicol.
- the repair facility repairs punctures of tires that have been temporarily repaired with a sealant, and re-installs the repaired tires on vehicles or, depending on the condition of puncture holes, discards punctured tires without repairing them.
- a sealant it is necessary to remove the sealant from the inside of the tire.
- the sealant removed from the inside of the tire will pollute the environment.
- final disposal such as disposal and incineration must be performed to prevent staining.
- a sealing agent is mainly composed of an aqueous solution in which rubber latex is dispersed, and a resin-based adhesive, a fiber material, an antifreezing agent, a pH adjuster, an emulsifier, and the like are added to the aqueous solution. .
- the sealing agent injected into the pneumatic tire can be prevented from being scattered by collecting the sealing agent in a container before replacing the tire.
- a hose or the like is connected to the valve mounting hole of the tire, and the sealing agent is recovered in a container via the hose or the like, and the liquid is treated as industrial waste liquid. For this reason, it is necessary to store the oil until it reaches a predetermined amount, and there is a problem that it takes a long time to collect the tire from the tire.
- the rubber latex in the sealing agent is solidified and separated as a solid component from the sealing agent (solid-liquid separation). It is preferred to treat the components separately.
- Specific treatment methods include, for example, solid components are removed (recycled) as a rubber raw material after removal of impurities, dehydration, and drying, or incineration and landfill after dehydration and drying. Liquid components can be discharged to sewers for industrial wastewater by performing mild purification treatment such as neutralization, dilution, and sedimentation as necessary.
- an organic weak acid aqueous solution is poured into a pneumatic tire, and the rubber latex contained in the used sealing agent is agglomerated to adhere to the tire inner surface and neutralize the separated water to make it harmless.
- a method for treating a sealing agent has been proposed (see, for example, Patent Document 1).
- a treating agent having a pH of 1.6 to 1.8 mainly composed of an acid aqueous solution, is injected into a sealing agent comprising a basic aqueous solution in which rubber latex is dispersed, and By coagulating the rubber latex, the sealing agent is separated into a fixed component (gum latex) and a liquid component, and the liquid component is neutralized.
- Patent Document 1 discloses that the acid constituting the treating agent is hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, carbonic acid, acetic acid, formic acid, citric acid, tartaric acid, salicylic acid, phthalic acid, malonic acid, maleic acid, chloroacetic acid, dichloric acid. It describes that it is selected from the group consisting of acetic acid and oxalic acid.
- Patent Document 1 JP 2002-226636 A
- Patent Document 1 it is necessary to add an organic weak acid aqueous solution to each pneumatic tire, and there is a disadvantage that workability is not very good.
- the amount of used sealing agent in the pneumatic tire is unknown, in order to coagulate all the rubber latex contained in the used sealing agent and neutralize and harm all the separated water, It is necessary to add a large amount of the organic weak acid aqueous solution, and there is also a disadvantage that the cost increases.
- the sealing agents generally used at present are not necessarily basic ones.
- sealing agents using synthetic rubber latex which does not require addition of ammonia for stabilization, are medium. Many are close enough to gender or neutrality.
- a treatment agent mainly containing an acid aqueous solution described in Patent Document 1 into such a substantially neutral sealing agent, the sealing agent can be separated into a solid component (rubber latex) and a liquid component.
- the flocculated rubber latex contains an acidic solution, and the remaining liquid components become acidic solutions. Therefore, in order to render them harmless, the rubber latex and the liquid component must be neutralized in different steps, which increases the cost and labor for treating the sealing agent. Can occur.
- the present invention can efficiently separate and recover a used sealing agent into a rubber latex and a liquid component, and can also use a rubber latex and a liquid separated from the used sealing agent.
- An object of the present invention is to provide a method for treating a sealing agent which can simplify the treatment of components.
- Another object of the present invention is to provide a sealing agent processing method and a convenient sealing agent processing apparatus that can efficiently recover a sealing agent at low cost in consideration of the above facts.
- the method for treating a sealing agent according to claim 1 of the present invention is characterized in that the sealing agent for recovering a puncture repair sealing agent composed of at least an aqueous solution in which rubber latex is dispersed is collected from the inside of the pneumatic tire.
- a treatment method comprising: injecting a treatment agent containing at least one of a salt, which is a reaction compound of an acid and a base, and a water-soluble organic solvent into a pneumatic tire into which a sealing agent has been injected; And a solid-liquid separation step of mixing the rubber latex from the sealing agent and solidifying it by mixing the rubber latex from the sealing agent inside the pneumatic tire.
- a salt which is a reaction compound of an acid and a base
- a water-soluble organic solvent is contained in the pneumatic tire into which the sealing agent has been injected. Injecting the treating agent into the pneumatic tire, mixing the treating agent with the sealing agent inside the pneumatic tire, and coagulating and solidifying the rubber latex from the sealing agent, so that the used sealing agent can be removed inside the pneumatic tire.
- the relatively high-viscosity sealing agent before solid-liquid separation scatters outside, It does not adhere to workers or work facilities, and can prevent workers and work facilities from being contaminated by the sealing agent before solid-liquid separation.
- a salt which is a reaction compound of an acid and a base, and a water-soluble organic solvent are used as a treating agent for solid-liquid separation of the sealing agent. Since an aqueous solution containing one of them is used, the rubber latex and liquid components generated from the sealing agent by adding this treating agent to the sealing agent may be acidic or alkaline. Since it hardly causes harm such as potash, rubber latex and liquid produced from the sealing agent are compared with the conventional case where the sealing agent is solid-liquid separated using a treatment agent mainly composed of an acidic aqueous solution. Processing for detoxifying components can be easily performed. Furthermore, such treatment agents can be made inexpensive, and there is no need to pay special attention to storage and management. Manufacturing cost and storage ⁇ Management cost can be greatly reduced.
- the method for treating a sealing agent according to claim 2 of the present invention is the method for treating a sealing agent according to claim 1, wherein the sealing is performed inside the pneumatic tire after the completion of the solid-liquid separation step. And a recovery step of separating the rubber latex as a solid component generated from the agent and the remaining liquid component in the sealing agent from the inside of the pneumatic tire while separating the rubber latex.
- an aqueous solution in which sodium salt is dissolved in the method for treating a sealing agent according to claim 1 or 2, in the solid-liquid separation step, an aqueous solution in which sodium salt is dissolved. Is injected into the inside of the pneumatic tire as a treatment agent.
- the method for treating a sealing agent according to claim 4 of the present invention is the method for treating a sealing agent according to claim 1 or 2, wherein in the solid-liquid separation step, any one of methanol, ethanol, and acetone is used. It is characterized in that an aqueous solution containing the above is injected into the pneumatic tire as a treating agent.
- the present inventors have paid attention to the fact that rubber latex such as NR, NBR and SBR is used as a main component of the sealing agent. After intensive studies, they came up with the idea that by solidifying and treating at least a part of these rubber latexes, it is possible to efficiently treat used sealants removed from pneumatic tires. To solidify the latex, it is effective to add acid or alkali to change the pH, or to add alcohol or electrolyte to reduce the effect of the latex surface as a surfactant. With further attention paid to this, the present invention was completed.
- the invention according to claim 5 provides a solid material obtained by adding at least one of a salt and an organic solvent to a used sealing agent containing a latex containing natural rubber and synthetic rubber and an antifreeze.
- a separation step of producing a component and separating the solid component and the liquid component It is characterized by including.
- Salts include electrolytes such as sodium chloride (sodium chloride), sodium bicarbonate (sodium hydrogen carbonate), and potassium chloride; organic solvents include alcohols such as methanol and ethanol, and acetone. Are preferred. Among these, salts such as common salt are more preferable from the viewpoint of the availability.
- the amount of these solutions to be charged into the sealing agent varies depending on the blending of the sealing agent. For example, in the case of a sealing agent having a latex component of about 30%, 5 OOg of the sealing agent is required.
- the amount of the saturated saline solution is in the range of 50 to 300 g, preferably in the range of 80 to 20 Og. It is preferable that the amount is the minimum amount at which the cloudiness of the solution component disappears by the addition.
- the solid component After being separated into a solid component and a liquid component, the solid component is discarded as a non-combustible material or a force for reuse, such as adding to the plastic material a constituent material of a reinforcing material. Liquid components are collected and treated as industrial waste liquid.
- This industrial waste liquid does not contain a latex component as compared with the related art. Therefore, waste liquid treatment is easy. Further, the amount of waste liquid can be greatly reduced as compared with the conventional case. Further, since the sealing agent is generally alkaline, the separated liquid component can be rendered harmless by adjusting the amount of the acid to neutralize the used sealing agent.
- the invention according to claim 6 is characterized in that the used sealing agent is taken out from a punctured pneumatic tire.
- the invention according to claim 7 is characterized in that salt is added as the salt.
- the effect of the stabilizer (surfactant) surrounding the latex particle surface is weakened, and the particles start to aggregate.
- the effect of adding salt as salt does not require the use of special chemicals, which improves the stability during work and enables procurement on site.
- salt as saline.
- concentration of saline Is more preferably 5% or more, more preferably 10% or more, more preferably a saturated saline solution.
- the invention according to claim 8 is characterized in that an antifreeze regenerating step of separating and recovering an antifreeze from the liquid component is included as a step subsequent to the separation step.
- antifreeze such as ethylene glycol propylene glycol is a reusable component. Therefore, resources can be effectively used by separating and collecting such antifreeze.
- the invention according to claim 9 includes a solid component recycling step of recycling the solid component.
- the solid component mainly contains latex. Therefore, if this solid component can be effectively used, resources can be effectively used as in the case of the antifreeze liquid.
- the invention according to claim 10 provides an outer case that accommodates a used sealing agent and has an openable and closable liquid outlet, and a plurality of inner cases provided inside the outer case and through which a liquid component passes.
- An inner case having an opening formed therein, and an adding means for adding a predetermined solution into the inner case are provided.
- the used sealant is accommodated in the outer case. Also, since a number of openings are formed in the inner case, the used sealant is also located in the inner case.
- a predetermined solution is added into the inner case by the adding unit.
- the predetermined solution is a solution for solidifying the latex component of the used sealing agent.
- the liquid component in the case can be discharged to the outside of the case. Therefore, the liquid component and the solid component can be separated.
- the invention according to claim 11 is characterized in that the used sealing agent is charged into an inner case.
- the invention according to claim 12 is characterized in that the inner case has a mesh shape.
- the invention according to claim 13 is characterized in that a rotating means is provided for rotating the inner case to cause the liquid component to flow out of the opening force by centrifugal force.
- the liquid component and the solid component formed in the inner case can be easily separated in a short time.
- the used sealing agent can be efficiently separated and recovered into a rubber latex and a liquid component, and the used sealing agent can be recovered.
- the present invention since the present invention is configured as described above, it is possible to efficiently process the sealing agent at low cost, and to realize an easy-to-use sealing agent processing apparatus.
- FIG. 1A shows a processing liquid injection device (hereinafter, simply referred to as “injection device”) used in the sealing agent processing method according to the embodiment of the first aspect of the present invention.
- the injection device 10 is for injecting the processing liquid 14 into a pneumatic tire (hereinafter simply referred to as “tire”) 24 whose puncture hole has been repaired (closed) by the sealing agent 12.
- tire pneumatic tire
- the injection device 10 includes a processing liquid tank 16 storing a processing liquid 14 and an injection hose 18 connected to the processing liquid tank 16.
- a discharge port 17 for the processing liquid 14 is opened in the bottom plate portion, and a base end of a liquid injection hose 18 is connected to the discharge port 17.
- the injection hose 20 is connected at its distal end to an injection pipe 20 having a diameter smaller than the inner diameter of the tire valve 26 of the tire 24, and at the proximal end thereof flows the treatment liquid 14 through the hose.
- An on-off valve 22 for controlling the pressure is provided.
- the injection pipe 20 can be inserted into the tire 24 through the tire valve 26 from which the valve core has been removed.
- the processing liquid 14 stored in the processing liquid tank 16 converts the sealing agent 12 into a solid component and a liquid component.
- a saturated saline solution obtained by dissolving sodium chloride (salt) in water so as to be in a saturated state is used in this embodiment from the viewpoints of easy availability, cost, ease of storage and management, and the like. Used as treatment liquid 14.
- sealing agents 12 are currently available on the market. Typical examples thereof include NR (natural rubber) latex, SBR (styrene butadiene rubber) latetus, and NBR. (Acrylic nitrile-butadiene rubber) those mainly containing an aqueous solution containing a rubber latex such as a latex and a resin-based adhesive added in the form of an aqueous dispersant or an aqueous emulsion.
- NR natural rubber
- SBR styrene butadiene rubber
- NBR Non-butadiene rubber
- glycols in such aqueous solutions, glycols, ethylene-glycol, antifreeze agents such as propylene glycol, P H modifiers, emulsifiers, together with such stabilizers and the like are commonly added, sealing against puncture optionally Fiber material made of polyester, polypropylene, glass, etc. or whisker, calcium carbonate, carbon black, etc.
- Hamazai FILLER I
- Kei salt or polystyrene particles are added.
- the worker at the tire repair facility first removes the tire 24 whose puncture hole has been repaired with the sealing agent 12 from the vehicle, and removes a valve core (not shown) from the tire valve 26 of the tire 24. After that, the injection pipe 20 is inserted into the tire 24 through the tire valve 26, and preferably, the tip of the injection pipe 20 is immersed in the sealing agent 12. In this state, the worker opens the on-off valve 22 of the injection device 10 that has been closed, and transfers the processing liquid 14 stored in the processing liquid tank 16 through the injection hose 18 and the injection pipe 20 into the tire 24. Then, a predetermined amount of the treatment liquid 14 is added to the sealing agent 12.
- the worker fits a stopper such as a rubber cap into the tire valve 26 and rotates the tire 24 to agitate the sealing agent 12 to which the treatment liquid 14 is added in the tire 24, and The 14 is evenly diffused into the sealing agent 12.
- a stopper such as a rubber cap
- the sealing agent 12 contains a gel-like solid component. Generation is started. Sufficient time (approximately within 10 minutes) elapses after the formation of this solid component starts Then, the sealing agent 12 separates into rubber latex solidified in a gel state inside the tire 24 and remaining liquid components such as water and antifreeze.
- the amount of the treatment liquid 14 added to the sealing agent 12 is such that almost all of the rubber latex contained in the sealing agent 12 is agglomerated in order to reduce the amount of liquid components after the sealing agent 12 is subjected to solid-liquid separation.
- the minimum amount is such that a transparent liquid component can be obtained.
- the minimum amount of the treatment liquid 14 varies depending on the content of the rubber latex in the sealing agent 12. Specifically, when the rubber latex (SBR type) in the sealing agent 12 is 30 wt%, the amount is appropriately set at 50 g to 300 g (preferably ⁇ 80 g to 200 g) for a 500 g sealing IJ12. By adding an appropriate amount of saturated saline, the sealing agent 12 can be separated into a rubber latex and a liquid component.
- the treatment liquid 14 may be one of a salt which is a reaction compound of an acid and a base and one of a water-soluble organic solvent. Alternatively, a solution containing both can be used.
- a salt which can form at least a part of the treatment liquid 14 for example, sodium bicarbonate (sodium carbonate), potassium chloride, and sodium sulfate can be used.
- the solvent for example, alcohols such as methanol, ethanol, and propanol and acetone can be used. Even if a solution containing one or both of these salts and a water-soluble organic solvent is added as a treatment liquid to the sealing agent 12, the sealing agent 12 can be separated into a solid component (rubber latex) and a liquid component. It is possible.
- the reaction time with the sealing agent 12 can be effectively reduced as compared with the case where a salt or the like is added to the sealing agent 12 in a solid state.
- the liquid treatment liquid 14 is used to treat the sealing agent 12 in consideration of the fact that it is easy to put the tire into the tire 24, but the salt mentioned above is in a granular state or a powder state. It can be used as a treating agent. Even when such a granular or powdery additive is introduced into the tire 24 and added to the sealing agent 12, if the stirring strength for the sealing agent 12 to which the treating agent is added is sufficiently increased, The treatment (solid-liquid separation) of the sealing agent 12 can be performed sufficiently uniformly in a short time.
- the worker states that the sealing agent 12 is separated into the rubber latex and the liquid component inside the tire 24. Then, the tire 24 is removed from the rim of the wheel 25, and the gel-like rubber latex and the liquid component generated from the sealing agent 12 are discharged from the tire 24 into the drainage container 28 shown in FIG. 1B. .
- a filter container 32 having a mesh filter 30 is attached to the opening of the drainage container 28. The liquid component L of the sealing agent 12 discharged from the inside of the tire 24 passes through the mesh filter 30 and is discharged to the drainage container. The rubber latex R in the form of gel is collected in the filter container 32 while being filtered out by the mesh filter 30.
- the operator separates the rubber latex R, which is a solid component deposited on the mesh filter 30, from the liquid component L, which has accumulated in the drainage container 28, and separates the rubber latex and the liquid component into dedicated collection containers. Transfer and store rubber latex and liquid components until these collection containers are almost full.
- the rubber latex R stored in the collection container is reused (recycled) as a rubber raw material after removing impurities, dewatering, drying, or the like, or incinerated after drying, drying, and standing. It is disposed of by doing the same.
- the liquid component L is subjected, for example, to mild purification treatment such as neutralization, dilution, and sedimentation as required, and then is discharged to industrial wastewater sewerage facilities and disposed of as general wastewater by sewerage facilities. .
- the treatment liquid 14 is injected into the tire 24 into which the sealing agent 12 has been injected, and the treatment liquid 14 is dispersed inside the tire 24 by the sealing agent 12.
- the used sealing agent 12 can be efficiently separated into a solid component (rubber latex) and a liquid component inside the tire 24.
- the sealing agent 12 having a relatively high viscosity before solid-liquid separation is scattered outside and does not adhere to workers or work facilities.
- the treatment solution 14 is added to the sealing agent 12. Since the rubber latex and liquid components generated from the sealing agent 12 by the addition of the glue are hardly harmful, such as becoming acidic or alkaline, the sealing agent is prepared using a conventional treating agent mainly composed of an acidic aqueous solution. Compared to the case of solid-liquid separation, the process for detoxifying the rubber latex and liquid components generated from the sealing agent 12 can be performed easily. Furthermore, such processing solutions can be made inexpensive and do not require special consideration for storage and management. Manufacturing costs and storage and management costs can be significantly reduced.
- a sealing agent recovery device 50 includes an outer case 52 for storing a used repair liquid (sealing agent) taken out of a pneumatic tire, and an outer case 52.
- a mesh-like mesh case 54 provided inside the mesh 52, an inlet 56 for charging the repair liquid into the mesh case 54, a stirring blade 58 for stirring the repair liquid in the mesh case (inner case) 54, It has a stirring motor 60 for rotating the stirring blades 58, a dewatering motor 62 for rotating the mesh case 54 to remove the liquid component from the mesh case 54, and a drain line 64 connected to the outer case 52. ing.
- the rotation speed of each of the stirring motor 60 and the spinning motor 62 is variable.
- the drain line 64 is provided with a drain cock 66 that can be opened and closed freely.
- the rotation speed of the stirring motor 60 is preferably in the range of 300 to 1500 rpm from the viewpoint of uniform stirring. If it is lower than 300 rpm, it is difficult to obtain a sufficient stirring effect. If it is higher than 1500 rpm, the liquid splashes and it is difficult to stir uniformly. It is more preferable that the number of rotations be in the range of 400 to:! OOrpm.
- the dewatering motor 62 is provided to separate solid matter generated in the mesh case 54 from the liquid, and the rotation speed is preferably in the range of 300 to 3000 rpm. If it is lower than 300 rpm, it is difficult to obtain a sufficient dewatering effect. If it is higher than 3000 rpm, it is difficult to obtain uniform rotation when the solids are unevenly distributed.
- the capacity of the outer case 52 is not particularly limited, but from the viewpoint of compactness, it is preferable that the capacity is about 1.5 to 2L suitable for treating about 1L of the repairing liquid.
- the used repair liquid removed from the pneumatic tire is charged into the mesh case 54 from the charging port (addition means) 56. Further, the stirring motor 60 is driven to rotate the stirring blades 58, and a necessary amount of the solution for solidifying the latex component of the repair liquid is supplied from the inlet 56. As a result, in the mesh case 54, the latex component becomes a solid component.
- the "sealing agent” various types are currently commercially available. Typical examples thereof include the following. That is, it contains a synthetic rubber such as NR (natural rubber) or SBR (styrene-butadiene rubber), NBR (acrylonitrile-butadiene rubber), or a rubber latex containing a mixture of both, and is an aqueous dispersion. Or an aqueous solution to which a resin-based adhesive added in the form of an aqueous emulsion or an aqueous emulsion is mainly used. Such an aqueous solution contains an antifreeze (antifreeze) such as glycol, ethylene-glycol, or propylene glycol.
- an antifreeze antifreeze
- pH adjusters, emulsifiers, stabilizers, etc. can be generally added, and if necessary, a fiber material or whisker made of polyester, polypropylene, glass, etc., whisker, calcium carbonate, etc. , A filler (filament) made of carbon black or the like, and particles of silicate or polystyrene.
- a neutral or weakly alkaline (pH: 8 to 11) sealing agent it is preferable to use a neutral or weakly alkaline (pH: 8 to 11) sealing agent.
- a strong sealing agent By using a strong sealing agent, complicated steps other than the separation step according to the present invention can be eliminated.
- the mesh case 54 is rotated by driving the spinning motor 62.
- the liquid component is moved to the outside of the mesh case 54, and only the solid component that cannot pass through the mesh case 54 is contained in the mesh case 54.
- the solid component and the liquid component can be separated (separation step).
- the solid components can be reused, for example, as a constituent material of a reinforcing material, through a solid component recycling step of reusing the solid components. If the solid components cannot be reused, they are discarded as incombustibles. I do. As a method of reuse, it may be used as thermal recycling as described above. In addition, the rubber material can be used as a thickener, or it can be used as recycled solid rubber when recycled by mixing with waste tire recycling rubber.
- the liquid component is collected and treated as an industrial waste liquid.
- This industrial waste liquid does not contain latex components, as compared to the past. Therefore, waste liquid treatment is easy. Also, the amount of waste liquid can be significantly reduced as compared with the conventional case.
- an antifreeze regenerating step for separating and recovering the liquid component antifreeze as a post-step of the above-described separation step.
- Membrane separation technology can be applied as a means for separating and recovering the antifreeze in this step.
- a microfiltration membrane or a reverse osmosis membrane it is preferable to use a microfiltration membrane or a reverse osmosis membrane.
- the antifreeze obtained through the antifreeze regenerating step can be reused as a raw material for a puncturing agent again by adding various known additives as necessary.
- the capacity of the outer case 52 was 1.5 L
- the capacity of the mesh case 54 was 1 45 L
- the number of meshes was 100 mesh.
- the stirring motor 60 a motor with a variable rotation speed of 200 to 1000 rpm at 60 W was used
- the spinning motor 62 a motor with a variable rotation speed of 500 to 3000 rpm at 150 W was used.
- the used repair liquid is suctioned out of the pneumatic tire 70 with the hose 72 and taken out (see FIG. 3), and 1 L is put into the mesh case 54 and the stirring motor 60 is set to 3000.
- the mixture was rotated at rpm to obtain a stirring state.
- 100 mL of saturated saline (temperature: 25 ° C.) was gradually charged into the mesh case 54, and after the addition was completed, stirring was continued for 5 to 15 minutes.
- the drain plug 66 was opened, and the mesh case 54 was started to rotate by rotating the dehydrating motor 62.
- the rotation speed By gradually increasing the rotation speed from 800 rpm to 1200 rpm, it was possible to sufficiently separate the liquid component and the solid component in a short time.
- the liquid component was treated as an industrial waste liquid, and the solid component could be reused as a plastic reinforcing material.
- FIG. 1A is a configuration diagram showing an apparatus for injecting a processing liquid used in a method for processing a sealing agent according to an embodiment of the present invention.
- FIG. 1B is a configuration diagram showing a container for discharging a sealing agent used in the method for treating a sealing agent according to the embodiment of the present invention.
- FIG. 2 is a side sectional view showing a configuration of a sealing agent collecting device according to one embodiment of the present invention.
- FIG. 3 is a side view showing that a used sealing agent in a pneumatic tire is taken out by suctioning with a hose in the example.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/569,559 US7981940B2 (en) | 2004-05-26 | 2005-05-26 | Method of treating sealing compound and apparatus for treating the same |
EP05743835.0A EP1752484B1 (en) | 2004-05-26 | 2005-05-26 | Method of disposing of sealing agent |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004155959 | 2004-05-26 | ||
JP2004-155959 | 2004-05-26 | ||
JP2004-248222 | 2004-08-27 | ||
JP2004248222A JP4250129B2 (ja) | 2004-08-27 | 2004-08-27 | シーリング剤の処理方法 |
JP2004363139A JP4557701B2 (ja) | 2004-05-26 | 2004-12-15 | シーリング剤の処理方法、及び、シーリング剤処理装置 |
JP2004-363139 | 2004-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005116115A1 true WO2005116115A1 (ja) | 2005-12-08 |
Family
ID=35450855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/009612 WO2005116115A1 (ja) | 2004-05-26 | 2005-05-26 | シーリング剤の処理方法及びシーリング剤処理装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7981940B2 (ja) |
EP (1) | EP1752484B1 (ja) |
WO (1) | WO2005116115A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006007748A (ja) * | 2004-05-26 | 2006-01-12 | Bridgestone Corp | シーリング剤の処理方法、及び、シーリング剤処理装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2191957A4 (en) * | 2007-08-17 | 2012-10-10 | Bridgestone Corp | METHOD FOR RECOVERING SEALING AGENT FOR PERFORATION REPAIR |
DE102010010361B4 (de) * | 2010-03-05 | 2020-12-10 | Sumitomo Rubber Industries, Ltd. | Vorrichtung zum Einbringen von Luft und/oder Abdichtmittel in einen Reifen |
JP5229306B2 (ja) * | 2010-11-19 | 2013-07-03 | 横浜ゴム株式会社 | パンク修理液の回収方法及び回収装置 |
WO2014148629A1 (ja) | 2013-03-22 | 2014-09-25 | 横浜ゴム株式会社 | エマルジョン凝固剤及びこれを用いるタイヤパンク修理キット |
DE112014004118B4 (de) | 2013-09-09 | 2021-07-15 | The Yokohama Rubber Co., Ltd. | Koagulationsmittel, dessen Verwendung und Reifenloch-Reparaturset |
JP6657715B2 (ja) * | 2015-09-29 | 2020-03-04 | 横浜ゴム株式会社 | パンク修理液収容容器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5927348A (en) * | 1996-06-25 | 1999-07-27 | Sp Reifenwerke Gmbh | Method of removing puncture sealing means from tires and apparatus for carrying out the method |
JP2002226636A (ja) * | 2001-02-01 | 2002-08-14 | Yokohama Rubber Co Ltd:The | タイヤ用パンク修理剤の処理方法及び処理剤 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695133A (en) * | 1953-08-26 | 1954-11-23 | Herbert R Drury | Centrifugal separator |
DE1144192B (de) * | 1960-10-14 | 1963-02-21 | Braunschweigische Maschb Ansta | Zentrifuge mit einer um eine lotrechte Achse umlaufenden, sich nach oben erweiternden Schleudertrommel zum Zentrifugieren viskoser Zuckermassen nach dem Duennschichtprinzip |
US3385443A (en) * | 1967-08-14 | 1968-05-28 | Cuza Cerso Roberto | Continuously operating centrifugal device |
US3727412A (en) * | 1971-08-16 | 1973-04-17 | Phillips Petroleum Co | Process for the in situ sealing of soil surrounding underground conduit breaks |
GB2133715A (en) * | 1983-01-17 | 1984-08-01 | Barry John Hartman | A centrifugal separator |
US5128392A (en) * | 1983-11-09 | 1992-07-07 | Bridgestone/Firestone, Inc. | Accelerator system for peroxide based curing systems |
US5357636A (en) * | 1992-06-30 | 1994-10-25 | Dresdner Jr Karl P | Flexible protective medical gloves and methods for their use |
-
2005
- 2005-05-26 WO PCT/JP2005/009612 patent/WO2005116115A1/ja active Application Filing
- 2005-05-26 US US11/569,559 patent/US7981940B2/en not_active Expired - Fee Related
- 2005-05-26 EP EP05743835.0A patent/EP1752484B1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5927348A (en) * | 1996-06-25 | 1999-07-27 | Sp Reifenwerke Gmbh | Method of removing puncture sealing means from tires and apparatus for carrying out the method |
JP2002226636A (ja) * | 2001-02-01 | 2002-08-14 | Yokohama Rubber Co Ltd:The | タイヤ用パンク修理剤の処理方法及び処理剤 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006007748A (ja) * | 2004-05-26 | 2006-01-12 | Bridgestone Corp | シーリング剤の処理方法、及び、シーリング剤処理装置 |
JP4557701B2 (ja) * | 2004-05-26 | 2010-10-06 | 株式会社ブリヂストン | シーリング剤の処理方法、及び、シーリング剤処理装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1752484A4 (en) | 2012-03-07 |
EP1752484B1 (en) | 2013-10-30 |
US20090200243A1 (en) | 2009-08-13 |
EP1752484A1 (en) | 2007-02-14 |
US7981940B2 (en) | 2011-07-19 |
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