CN207044464U - A kind of high-pressure atomization injection apparatus - Google Patents

Abstract

The utility model belongs to the technical field of rubber wet mixing equipment, and in particular relates to a high-pressure atomizing injection device. The main structure includes a support, a liquid dispersion tank, a filler latex inlet pipe, a filler latex outlet pipe, a pressure tank at the left end, and a middle pressure tank , right end pressure tank, connecting pipe, connecting pipe holder, infusion pipe, nozzle, air pipe, air pipe, air inlet pipe, liquid regulator, liquid filter, liquid shut-off valve, liquid pressure gauge, gas regulator, gas filter , Gas shut-off valve and gas pressure gauge, using a pressure-type air atomizing nozzle, the liquid is delivered to the nozzle opening through liquid pressure and gas pressure, and the liquid and gas are mixed in the liquid cap of the pressure atomizing nozzle and then pass through the pressure-type atomizing nozzle The nozzle hole is sprayed out; its structure is simple, the use environment is friendly, and it can effectively reduce dust pollution. The dispersion of the filler in the latex is good, so the produced mixed rubber has good uniformity, high quality and high comprehensive performance.

Description

A high-pressure atomizing spray device

Technical field:

The utility model belongs to the technical field of rubber wet mixing equipment, and in particular relates to a high-pressure atomization injection device, which utilizes sudden temperature crushing technology to carry out high-pressure injection atomization on filler latex, so as to realize the purpose of uniform dispersion and distribution of filler in latex. A rubber composite material with excellent mechanical properties and significantly improved comprehensive mechanical properties and dynamic mechanical properties is obtained.

Background technique:

In the preparation process of rubber composite materials, mixing is the most critical process. The essence of the mixing process is to mix various compounding ingredients into raw rubber to make a uniform quality of mixed rubber, that is, rubber and various The mixing and dispersing process of the compounding agent; because the quality of the rubber compound directly affects the quality, performance and service life of the rubber product, mixing is the first and most important process in the rubber product processing process ; At present, the traditional mixing process of the rubber industry mostly adopts the multi-stage mixing method of the internal mixer. Due to the high elasticity of the polymer, the mixing process is a process of continuous heat generation and heating. In order to prevent the rubber from being scorched and damaged performance, while achieving the purpose of uniform dispersion of compounding agents, the mixing process has to be repeated. In order to improve the mixing efficiency, new mixing methods and processes emerge in an endless stream. Advanced mixing methods such as low-temperature one-shot method, serial mixing and continuous mixing are gradually used. There is a very good equalization effect, but these mechanical mixing techniques can only make the dispersion level of the filler reach a certain level. Even if the mixing time is prolonged, the mixing quality of the rubber compound will not be improved. In order to obtain better mixing quality, people try to inject new energy (ultrasonic wave and solid dry ice, etc.) into the mixing process, and break the aggregates of fillers through the input of new energy to improve the quality of rubber mixing. Studies have found that these new technical means have only improved the microscopic dispersion of fillers to a certain extent, and there is still a certain gap between them and the requirements of high-end rubber products.

The wet preparation of rubber nanocomposites in the prior art mainly uses chemical methods to process new materials and latex emulsions, and realizes the uniform dispersion of nano fillers in latex by stirring, and then flocculates to obtain wet mixed rubber. The method and process add chemical reagents, which have a great impact on the properties of the rubber compound and reduce the quality and service life of the rubber product. The preparation method of the wet mixing natural rubber material disclosed in Chinese patent 201110064299.3 includes: first preparing the slurry, soaking 15-40% white carbon black dry material in 60-85% deionized water, adding coupling agent, surface active Mix the agent evenly, then grind in turn, prepare the latex mixed solution, take the natural latex and add the white carbon black water dispersion into the latex, then stir and mix to form the latex mixed solution, flocculate, add acetic acid to the mixed solution, wash the rubber Machine for washing and dehydration, sent to the rubber granulator for granulation, and finally the rubber granules are sent to the box-type drying cabinet for drying, which is an improvement on the traditional mixing technology. After the latex solution is prepared, it is mixed in the mixed solution Add acetic acid for flocculation, wash and dehydrate the rubber by a rubber washing machine, and then dry it in a drying oven for 4h-6h, and the dried rubber is the natural rubber compound. However, the traditional strong acid flocculation has unavoidable defects, not only will affect the health of operators, equipment corrosion, long drying period after flocculation, easy to produce acid gas and affect the environment, if the strong acid cleaning is not clean, it will also affect the subsequent vulcanization Time, vulcanization in an acidic environment will cause a lag in the vulcanization time. The new process requires a matching high-pressure atomizing injection device. Chinese patent 201220110946.X discloses a high-pressure atomizing injection system cooling device including an atomizing nozzle, which is located at the air inlet of the condenser of the air-cooled outdoor unit for spraying Water mist, high-pressure water delivery pipe, connected with the atomizing nozzle, used to supply water to the atomizing nozzle, atomizing net cover, arranged on the air inlet side of the condenser of the air-cooled outdoor unit, and covering the air inlet of the condenser and The atomizing nozzle; a high-pressure water pump connected to the high-pressure water pipe; a control system connected to the high-pressure water pump for controlling the operation of the high-pressure water pump; a high-pressure atomizing nozzle disclosed in Chinese patent 201510745426.4 includes Connecting flange, sealing sleeve, tapered guide groove, spray head casing, swirl core, multi-channel nozzle, the upper end of the spray head is provided with a connecting flange, the connecting flange is connected to the external high-pressure water pump, and the gap between the spray head casing and the connecting flange There is a sealing sleeve for sealing, and the sealing sleeve is tightly attached to the inner wall of the spray head jacket. There is a swirl core inside the spray head. One end of the swirl core is connected to the tapered guide groove, and the other end leads to the multi-channel nozzle of the spray head; Chinese patent 201510815009.2 A disclosed high-pressure atomization spray oil fume treatment equipment includes a flue, a smoke outlet and an oil collection tank, the smoke outlet is installed at the inlet end of the flue, the oil collection tank is arranged below the outlet end of the flue, and a high-pressure nozzle is arranged in the middle of the flue , the high-pressure nozzle is connected to the high-pressure water pump through a high-pressure water pipe, and the high-pressure nozzle can spray high-pressure atomized water toward the outlet of the flue; the above patented products are not suitable for the preparation of rubber composite materials. Therefore, research and development of a high-pressure atomization injection device that improves the degree of dispersion of fillers in the wet mixing process can achieve uniform dispersion of fillers, prevent the reunion of fillers after dispersion, shorten the production cycle, and improve the performance and strength of rubber. It has scientific and practical value, and also has good social and application prospects.

Invention content:

The purpose of this utility model is to overcome the shortcomings of the existing technology, to develop and design a high-pressure atomization spraying device that improves the dispersion degree of the filler in the wet mixing process, so that the filler can be uniformly dispersed, and can prevent the filler from re-dispersing. poly, shorten the production cycle, improve the performance strength of rubber.

In order to achieve the above object, the main structure of the high-pressure atomizing injection device involved in the utility model includes a support, a liquid dispersion tank, a filler latex inlet pipe, a filler latex outlet pipe, a left end pressure tank, a middle pressure tank, a right end pressure tank, and a connecting pipe , connection tube holder, infusion tube, nozzle, air tube, air pipe, air inlet tube, liquid regulator, liquid filter, liquid shut-off valve, liquid pressure gauge, gas regulator, gas filter, gas shut-off valve and gas pressure Table; the inside of the support of the hollow rectangular frame structure is provided with a liquid dispersion tank with a hollow lantern-shaped structure, the top of the liquid dispersion tank communicates with the filler latex inlet pipe of the circular tubular structure, and the bottom of the liquid dispersion tank connects The filler latex outlet pipe in the tubular structure is connected. The two parallel long sides of the support are respectively provided with a left-end pressure tank, a middle pressure tank and a right-end pressure tank with an inner hollow circular structure. There are connecting pipes with hollow cylindrical structure between the middle and middle pressure tanks and the right end pressure tank. The left end pressure tank, the middle pressure tank and the right end pressure tank are connected by connecting pipes to form an arc structure. There is a connecting pipe frame with an inner hollow structure in between, the filler latex inlet pipe communicates with the center of the connecting pipe frame, and the center of the upper surface of the left end pressure tank, the middle pressure tank and the right end pressure tank are all equipped with an inner hollow cylindrical structure. The infusion tube, the infusion tube is connected to one end of the nozzle, the other end of the nozzle is connected to the air tube of the hollow cylindrical structure, the air tube is connected to the air tube of the arc-shaped tubular structure, and the middle part of the air tube is connected to the arc-shaped tubular structure The air inlet pipe is connected with the air inlet pipe. A liquid regulator, a liquid filter and a liquid shut-off valve are arranged on the infusion pipe from the end close to the nozzle to the end far away from the nozzle. The liquid regulator is provided with a liquid pressure gauge. A gas regulator, a gas filter and a gas shut-off valve are arranged in sequence from one end of the nozzle to the end far away from the nozzle, and a gas pressure gauge is arranged on the gas regulator.

Compared with the prior art, the utility model adopts a pressure-type air atomizing nozzle to transport the liquid to the nozzle mouth through liquid pressure and gas pressure, and the liquid and gas are mixed in the liquid cap of the pressure atomizing nozzle and then atomized by pressure The nozzle hole of the nozzle is sprayed out, and the air cap can control the spray shape of the atomizing nozzle. The filler latex and compressed air are sprayed out from the nozzle to atomize the natural latex mixture. When spraying, the filler latex liquid column and the compression There is a large speed difference between the air, and the filler latex liquid column is split and broken due to the disturbance of the compressed air, so that the mixed liquid reaches the atomization effect; its structure is simple, the use of the environment is friendly, and it can effectively reduce dust pollution and realize mixing The continuous production of rubber improves production efficiency and significantly reduces production costs. The dispersion of fillers in latex is good, so the produced mixed rubber has good uniformity, high quality and high comprehensive performance.

Description of drawings:

Fig. 1 is the principle schematic diagram of the main structure of the utility model.

Fig. 2 is a schematic diagram of a partial structure enlarged principle of the present invention.

Fig. 3 is a schematic diagram of the principle of the main structure of the nozzle involved in the present invention.

Fig. 4 is a schematic diagram of the jet atomization principle of the nozzle involved in the present invention.

detailed description:

Below through embodiment and in conjunction with accompanying drawing, the utility model is further described.

Example 1:

The main structure of the high-pressure atomizing injection device involved in this embodiment includes a support 1, a liquid dispersion tank 2, a filler latex inlet pipe 3, a filler latex outlet pipe 4, a left end pressure tank 5, an intermediate pressure tank 6, a right end pressure tank 7, Connecting pipe 8, connecting pipe holder 9, infusion pipe 10, nozzle 11, air pipe 12, air pipe 13, air inlet pipe 14, liquid regulator 15, liquid filter 16, liquid shut-off valve 17, liquid pressure gauge 18, gas Regulator 19, gas filter 20, gas shut-off valve 21 and gas pressure gauge 22; The inside of the support 1 of hollow type rectangular frame structure is provided with the liquid dispersion tank 2 of hollow formula lantern-shaped structure, the liquid dispersion tank 2 The top is connected with the filler latex inlet pipe 3 of the circular tubular structure, the bottom of the liquid dispersion tank 2 is connected with the filler latex outlet pipe 4 of the circular tubular structure, and the two parallel long sides of the support 1 are provided with inner hollow type respectively. The left end pressure tank 5, the middle pressure tank 6 and the right end pressure tank 7 of the circular structure are provided with an inner hollow cylinder between the left end pressure tank 5 and the middle pressure tank 6 and between the middle pressure tank 6 and the right end pressure tank 7. The connecting pipe 8 of the structure, the left end pressure tank 5, the middle pressure tank 6 and the right end pressure tank 7 are connected to form an arc structure through the connecting pipe 8, and a connecting pipe frame 9 of an inner hollow structure is arranged between the two middle pressure tanks 6, The filler latex inlet pipe 3 communicates with the center of the connecting pipe frame 9, and the center of the upper surface of the left end pressure tank 5, the middle pressure tank 6 and the right end pressure tank 7 is provided with an infusion tube 10 of an inner hollow cylindrical structure, and the infusion tube 10 It is connected to one end of the nozzle 11, and the other end of the nozzle 11 is connected to the air delivery pipe 12 of the hollow cylindrical structure. The air inlet pipe 14 of the structure communicates, and the infusion tube 10 is provided with a liquid regulator 15, a liquid filter 16 and a liquid shut-off valve 17 sequentially from one end close to the nozzle 11 to an end far away from the nozzle 11, and the liquid regulator 15 is provided with a liquid A pressure gauge 18, a gas regulator 19, a gas filter 20 and a gas shut-off valve 21 are arranged in sequence from the end close to the nozzle 11 to the end far away from the nozzle 11 on the gas delivery pipe 12, and a gas pressure gauge 22 is arranged on the gas regulator 19.

The support 1 involved in this embodiment is used as the mounting bracket of the liquid dispersion tank 2 and provides support for the liquid dispersion tank 2; the liquid dispersion tank 2 is used as the dispersion and atomization place of the filler latex; the filler latex inlet pipe 3 is used as the inlet channel of the filler latex The filler latex outlet pipe 4 is used as the outlet passage of the filler latex; the left end pressure tank 5, the middle pressure tank 6 and the right end pressure tank 7 collect the filler latex and are subjected to the effect of air pressure to pressurize the filler latex; the connecting pipe 8 is used as the left end pressure tank 5 The connection channel between the middle pressure tank 6 and the middle pressure tank 6 and the right end pressure tank 7; the connecting pipe frame 9 is used as the connection channel of the middle pressure tank 6 and the left end pressure tank 5 and the middle pressure tank 6 on both sides of the support 1 It is connected with the pressure tank 7 at the right end; the infusion tube 10 is used as the delivery channel for the liquid filler latex to enter the nozzle 11; the nozzle 11 is a pressure-type air atomizing nozzle, and the working principle of the pressure-type air atomizing nozzle is to use liquid pressure or gas pressure to The liquid is sent to the nozzle mouth, the liquid and the gas are mixed in the liquid cap of the pressure atomizing nozzle and sprayed out through the nozzle hole of the pressure atomizing nozzle. The air cap can control the spray shape of the atomizing nozzle, and the nozzle 11 is used as the injection of filler latex The mouth sprays the emulsion into a mist to realize the dispersion of the filler in the latex; the air pipe 12, the air pipe 13 and the air inlet pipe 14 work together as the channel for the air to enter the nozzle 11; the liquid regulator 15 is used to adjust the liquid filler latex Flow rate; Liquid filter 16 is used to filter out the solid matter in the liquid filler latex; The purpose of liquid shut-off valve 17 is to open and close infusion tube 10; Liquid pressure gauge 18 is used for monitoring the pressure of infusion tube 10; Gas regulator 19 is used for Adjust the flow rate of the gas; the gas filter 20 is used to filter out solid and liquid substances in the gas; the gas shut-off valve 21 is used to open and close the gas pipeline 12; the gas pressure gauge 22 is used to monitor the pressure of the gas pipeline 12.

The working process of the nozzle 11 that the present embodiment involves is that the filler latex and the compressed air are sprayed out by the nozzle 11, which plays the role of atomizing the natural latex mixture; when spraying, there is a large gap between the filler latex liquid column and the compressed air Due to the speed difference, the filler latex liquid column is split and broken due to the disturbance of compressed air, so that the mixed liquid can reach the atomization effect. Taking the silica/natural rubber mixture as an example, the mixture is sharply atomized under high pressure, and the silica aggregates will be fully dispersed, making the silica particles more refined, and the protective film on the surface of the latex particles is vibrated in the gas. Under the action of the wave and the friction between it and the gas, it is destroyed, and then the silica particles are in contact with the rubber hydrocarbon molecules, filled into the rubber molecular chains, and combined with the rubber molecules; because the atomization is completed in an instant, the rubber hydrocarbon molecular chains The volume of the rubber increases instantaneously, the released rubber hydrocarbon molecular chains are fully stretched, and a large number of silica particles are completely filled between the rubber hydrocarbon molecular chains, so as to maximize the filling amount of silica in natural rubber and obtain high At the same time, the natural latex/silica slurry mixture is more uniform after atomization, and the dispersion performance of the silica filler in it is further optimized.

Claims (1)

1. a kind of high-pressure atomization injection apparatus, it is characterised in that agent structure includes bearing, liquid dispersion tank, filler latex entrance Pipe, filler latex outlet, left end pressurized tank, intermediate pressure tank, right-hand member pressurized tank, connecting tube, joint pipe frame, woven hose, spray Mouth, appendix, air duct, air inlet duct, liquid regulator, liquid filter, liquid shutoff valve, hydraulic pressure gage, gas Body adjuster, pneumatic filter, gas shut-off valve and gas gauge；The inside of the bearing of hollow type rectangular frame structure is set There are the liquid dispersion tank of hollow type bird-caging structure, the top of liquid dispersion tank and the filler latex inlet tube of round tubular structure Connection, the bottom of liquid dispersion tank connect with the filler latex outlet of round tubular structure, two parallel long sides of bearing Outside is respectively arranged with the left end pressurized tank, intermediate pressure tank and right-hand member pressurized tank of hollow type circular configuration, left end pressurized tank with The connecting tube of hollow type cylindrical structural is provided between intermediate pressure tank between intermediate pressure tank and right-hand member pressurized tank, it is left End pressure tank, intermediate pressure tank and right-hand member pressurized tank are connected to become arcuate structure by connecting tube, between two intermediate pressure tanks The joint pipe frame of hollow type structure is provided with, filler latex inlet tube connects with the center of joint pipe frame, left end pressurized tank, centre The woven hose of hollow type cylindrical structural, woven hose and nozzle are provided with the upper surface center of pressurized tank and right-hand member pressurized tank One end connection, the other end of nozzle is connected with the appendix of hollow type cylindrical structural, appendix and circular arc tubular structure Air duct connection, the middle part of air duct connects with the air inlet duct of circular arc tubular structure, from close on woven hose One end of nozzle is disposed with liquid regulator, liquid filter and liquid shutoff valve to one end away from nozzle, and liquid is adjusted Save and hydraulic pressure gage is provided with device, one end on appendix from close to one end of nozzle to away from nozzle is disposed with gas Adjuster, pneumatic filter and gas shut-off valve, gas gauge is provided with gas conditioner.