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A polymer processing system includes a mixer. The mixer includes at least one side wall and a bottom wall that cooperate to define a chamber. At least one side wall also defines a bore. The mixer also includes a pair of rotors that are disposed in the chamber and are rotatably received by the at lea

A polymer processing system includes a mixer. The mixer includes at least one side wall and a bottom wall that cooperate to define a chamber. At least one side wall also defines a bore. The mixer also includes a pair of rotors that are disposed in the chamber and are rotatably received by the at least one side wall for mixing polymers. The mixer also includes at least one injector that at least partially extends through the bore of the at least one side wall. The polymer processing system also includes a ram that is movably connected to the mixer. The polymer processing system also includes a compressed air supply that is fluidly connected to the at least one injector to supply compressed air to the chamber through the at least one injector.

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1. A polymer processing system, comprising: a mixer including at least one side wall and a bottom wall that cooperate to define a mixing chamber, the at least one side wall also defining a bore,a pair of rotors disposed in the mixing chamber and rotatably received by the at least one side wall for m

1. A polymer processing system, comprising: a mixer including at least one side wall and a bottom wall that cooperate to define a mixing chamber, the at least one side wall also defining a bore,a pair of rotors disposed in the mixing chamber and rotatably received by the at least one side wall for mixing polymers, andat least one injector that at least partially extends through the bore of the at least one side wall into the mixing chamber, the at least one injector defining an injector orifice, the at least one injector including: a movable injector shaft that is received in the injector orifice wherein the injector shaft selectively allows fluid communication between the injector orifice and the mixing chamber, andan additive inlet received on a first side of the injector orifice to fluidly connect an additive supply to the injector orifice;a ram movably connected to the mixer, the ram including a ram shaft and a ram head, wherein the ram is movable between an extended position in which the ram head is at least partially received within the mixing chamber and a retracted position in which the ram head is not received at least partially within the mixing chamber;a compressed air supply fluidly connected to the at least one injector to supply compressed air to the mixing chamber through the at least one injector, wherein the compressed air supply supplies the compressed air to the at least one injector at a pressure that is greater than a pressure of atmospheric air immediately surrounding an exterior of the mixer; andan air chiller fluidly disposed between the compressed air supply and the at least one injector, wherein the at least one injector includes a compressed air supply inlet that is received on a second side of the injector orifice that is opposite the first side to fluidly connect the compressed air supply to the injector orifice, wherein the air chiller is fluidly connected to the at least one injector to supply cooled air through the at least one side wall into the mixing chamber to cool the polymers, and wherein the air chiller cools the cooled air to a temperature that is less than a temperature of the atmospheric air immediately surrounding the exterior of the mixer. 2. The polymer processing system of claim 1, further comprising: a controller that controls the compressed air supply to supply the compressed air to the mixing chamber through the at least one injector. 3. The polymer processing system of claim 1, the at least one side wall defining at least one side wall passageway that receives fluid, the at least one side wall passageway being fluidly isolated from the compressed air supply. 4. The polymer processing system of claim 1, wherein the compressed air supply supplies the compressed air to the at least one injector at at least eighty pounds per square inch. 5. The polymer processing system of claim 1, further comprising: a temperature sensor disposed at least partially within the mixing chamber so as to measure a temperature of the polymers in the mixing chamber; wherein the air chiller reduces a temperature of the compressed air that is supplied to the at least one injector to a temperature that is less than the temperature of the polymers in the mixing chamber. 6. The polymer processing system of claim 1, the mixer further defining a mixer inlet through which the ram extends and through which the polymers are introduced into the mixer and a mixer outlet through which the polymers are discharged from the mixer, wherein the at least one injector is fluidly distinct and separate from the mixer inlet and the mixer outlet. 7. The polymer processing system of claim 1, wherein the air chiller reduces the temperature of the air that is supplied to the at least one injector to approximately 50 degrees Fahrenheit or less. 8. The polymer processing system of claim 1, further comprising: a controller configured to control the ram so that the ram is in the retracted position when the cooled air is supplied from the at least one injector to the mixing chamber. 9. A polymer processing system, comprising: a mixer including at least one side wall and a bottom wall that cooperate to define a mixing chamber, the at least one side wall also defining a bore,a pair of rotors disposed in the mixing chamber and rotatably received by the at least one side wall for mixing polymers, andat least one injector that at least partially extends through the bore of the at least one side wall;a ram movably connected to the mixer, the ram including a ram shaft and a ram head, wherein the ram is movable between an extended position in which the ram head is at least partially received within the mixing chamber and a retracted position in which the ram head is not received at least partially within the mixing chamber;a compressed air supply fluidly connected to the at least one injector to supply compressed air to the mixing chamber through the at least one injector, wherein the compressed air supply supplies the compressed air to the at least one injector at a pressure that is greater than a pressure of atmospheric air immediately surrounding an exterior of the mixer;an air chiller fluidly disposed between the compressed air supply and the at least one injector to supply cooled air through the at least one side wall into the mixing chamber to cool the polymers, wherein the air chiller cools the cooled air to a temperature that is less than a temperature of the atmospheric air immediately surrounding the exterior of the mixer; anda central processing unit configured to control the ram so that the ram is in the retracted position when the cooled air is supplied from the at least one injector to the mixing chamber. 10. The polymer processing system of claim 9, further comprising: an additive supply that contains polymer additives, wherein the at least one injector includes an additive inlet that is fluidly connected to the additive supply, a compressed air supply inlet that is fluidly connected to the compressed air supply, and an injector orifice that fluidly connects the additive inlet and the compressed air supply inlet to the mixing chamber. 11. The polymer processing system of claim 9, the at least one side, wall defining at least one side wall passageway that receives fluid, the at least one side wall passageway being fluidly isolated from the compressed air supply. 12. The polymer processing system of claim 9, wherein the compressed air supply supplies the compressed air to the at least one injector at at least eighty pounds per square inch. 13. The polymer processing system of claim 9, further comprising: a temperature sensor disposed at least partially within the mixing chamber so as to measure a temperature of the polymers in the mixing chamber; wherein the air chiller reduces a temperature of the compressed air that is supplied to the at least one injector to a temperature that is less than the temperature of the polymers in the mixing chamber. 14. The polymer processing system of claim 9, the mixing chamber further defining a mixing chamber inlet through which the ram extends and through which the polymers are introduced into the mixing chamber and a mixing chamber outlet through which the polymers are discharged from the mixing chamber, wherein the at least one injector is fluidly distinct and separate from the mixing chamber inlet and the mixing chamber outlet. 15. The polymer processing system of claim 9, wherein the air chiller reduces the temperature of the air that is supplied to the at least one injector to approximately 50 degrees Fahrenheit or less.