Steam recycling device of steamer type tire vulcanizing machine

Abstract

The utility model relates to a steam recycling device of a steamer type tire vulcanizing machine, and belongs to the field of tire vulcanizing. Steam in the steam source pipeline is supplied to a vulcanization area by an external temperature steam header pipe; a steamer type tire vulcanizing machine is arranged in the vulcanizing area; the steamer type tire vulcanizing machine is provided with an upper steamer, a lower steamer, an external temperature regulating valve, a sizing regulating valve, an external temperature discharge valve and a drainage device; an external temperature steam recovery tank and a condensed water recovery tank are arranged outside a vulcanization area, two steam outlet pipes are arranged at an outlet in the upper portion of the external temperature steam recovery tank, one steam outlet pipe is provided with a steam compressor, an outlet pipeline of the steam compressor is connected into a steam source pipeline, and the other steam outlet pipe is provided with a steam ejector. Steam in the external temperature steam recovery tank can pass through the steam ejector and then is conveyed to a shaping steam pipeline of a vulcanization area; an external temperature steam recovery pipeline from a vulcanization area is connected to an inlet in the upper middle portion of the external temperature steam recovery tank, a condensation water recovery pipeline from the vulcanization area is connected to the condensation water recovery tank, and a suction inlet of the steam ejector is connected to the condensation water recovery pipeline.

Description

Technical Field

[0001] The utility model relates to the field of tire vulcanization, in particular to a device for recovering steam from a steamer-type tire vulcanizer. Background Art

[0002] As we all know, the steamer-type tire vulcanizer needs to discharge the steam in the steamer, that is, the external temperature steam, to zero pressure before the mold can be opened. Due to energy saving and other reasons, it has been gradually replaced by the hot plate vulcanizer. However, some special tires, such as engineering tires and aviation tires, are still produced using steamer-type vulcanizers. After each preheating and vulcanization, before the mold is opened, the external temperature steam is directly discharged to the condensate recovery system to zero pressure. There is a need for an effective device and method to recover the external temperature steam discharged during the preheating of the vulcanizer and each vulcanization. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a steam recovery device for a steamer type tire vulcanizer, so as to realize the recovery and utilization of steam and condensed water.

[0004] The utility model solves the technical problem by adopting the following technical solution: a device for recovering steam of a steamer type tire vulcanizer, which is provided with a steam source pipeline, the steam source pipeline is connected to the steamer type tire vulcanizer through an external temperature steam main regulating valve and an external temperature steam main pipe, the steamer type tire vulcanizer is provided with an upper steamer and a lower steamer, and is characterized in that an external temperature steam recovery tank and a condensate recovery tank are provided outside the steamer type tire vulcanizer, two steam outlet pipes are provided at the upper outlet of the external temperature steam recovery tank, a steam compressor is provided at one of the steam outlet pipes, the outlet pipeline of the steam compressor is connected to the steam source pipeline, a steam ejector is provided at the other steam outlet pipe, and the steam outlet of the external temperature steam recovery tank is connected to the shaping steam pipeline through the steam ejector; The external temperature steam recovery pipeline is connected to the middle and upper inlet of the external temperature steam recovery tank, the condensate recovery pipeline is connected to the condensate recovery tank, and the suction port of the steam ejector is connected to the condensate recovery pipeline; the external temperature steam main pipe is connected to the steamer type tire vulcanizer through the external temperature regulating valve, the steam condensate outlet of the steamer type tire vulcanizer is connected to the condensate recovery pipeline through the first external temperature discharge valve, the second external temperature discharge valve and the drain device, the other outlet of the first external temperature discharge valve is connected to the external temperature steam recovery pipeline and is connected to the steam inlet of the external temperature steam recovery tank, the other outlet of the second external temperature discharge valve is connected to the condensate inlet of the condensate recovery tank through the condensate recovery pipeline, and the shaping steam pipeline is connected to the steam inlet of the steamer type tire vulcanizer through the shaping regulating valve.

[0005] The beneficial effects of the utility model are as follows: by controlling the pressure of the external temperature steam recovery tank to be maintained at a relatively low value, as much external temperature steam as possible is recovered, a steam compressor is used to increase the pressure of the steam in the external temperature steam recovery tank for recycling, and the steam with a relatively low pressure in the external temperature steam recovery tank is used to extract flash steam generated by condensed water through a steam ejector for use as shaping steam, thereby recycling steam and condensed water to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0007] Figure 1 A schematic structural diagram of the utility model.

[0008] In the figure, 1. steam source pipeline, 2. external temperature steam main regulating valve, 3. external temperature steam main pipe, 4. steamer type tire vulcanizer, 41. upper steamer, 42. lower steamer, 43. external temperature regulating valve, 44. shaping regulating valve, 45. first external temperature discharge valve, 46. drain device, 47. second external temperature discharge valve, 5. external temperature steam recovery tank, 6. steam compressor, 7. condensate recovery tank, 8. steam ejector, 9. external temperature steam recovery pipeline, 10. shaping steam pipeline, 11. condensate recovery pipeline. DETAILED DESCRIPTION

[0009] In the figure, the utility model is provided with a steam source pipeline 1, the steam source pipeline 1 is connected to a steamer-type tire vulcanizer 4 through an external temperature steam main regulating valve 2 and an external temperature steam main pipe 3, the steamer-type tire vulcanizer 4 is provided with an upper steamer 41 and a lower steamer 42, an external temperature steam recovery tank 5 and a condensate recovery tank 7 are provided outside the steamer-type tire vulcanizer 4, two steam outlet pipes are provided at the upper outlet of the external temperature steam recovery tank 5, a steam compressor 6 is provided at one of the steam outlet pipes, the outlet pipeline of the steam compressor 6 is connected to the steam source pipeline 1, a steam ejector 8 is provided at the other steam outlet pipe, the steam outlet of the external temperature steam recovery tank 5 is connected to a shaping steam pipeline 10 through the steam ejector 8; the external temperature steam recovery pipeline 9 is connected to the middle and upper inlet of the external temperature steam recovery tank 5, The condensate recovery pipeline 11 is connected to the condensate recovery tank 7, and the suction port of the steam ejector 8 is connected to the condensate recovery pipeline 11; the external temperature steam main pipe 3 is connected to the steamer type tire vulcanizer 4 through the external temperature regulating valve 43, and the steam condensate outlet of the steamer type tire vulcanizer 4 is connected to the condensate recovery pipeline 11 through the first external temperature discharge valve 45, the second external temperature discharge valve 47 and the drain device 46, the other outlet of the first external temperature discharge valve 45 is connected to the external temperature steam recovery pipeline 9 and is connected to the steam inlet of the external temperature steam recovery tank 5, the other outlet of the second external temperature discharge valve 47 is connected to the condensate inlet of the condensate recovery tank 7 through the condensate recovery pipeline 11, and the shaping steam pipeline 10 is connected to the shaping steam inlet of the steamer type tire vulcanizer 4 through the shaping regulating valve 44.

[0010] The steam in the steam source pipeline 1 is controlled by the external temperature steam main regulating valve 2 to stabilize the pressure of the external temperature main pipe required by the process, about 0.8MPa, and is supplied to the vulcanization area by the external temperature steam main pipe 3.

[0011] A steamer-type tire vulcanizer 4 is provided in the vulcanization area, and an upper steamer 41, a lower steamer 42, an external temperature regulating valve 43, a shaping regulating valve 44, a first external temperature discharge valve 45, a second external temperature discharge valve 47, and a drain device 46 are provided in the steamer-type tire vulcanizer 4.

[0012] Outside the vulcanization area, an external temperature steam recovery tank 5 and a condensate recovery tank 7 are arranged, and two steam outlet pipes are arranged at the upper outlet of the external temperature steam recovery tank 5, one of which is provided with a steam compressor 6, and the outlet pipeline of the steam compressor 6 is connected to the steam source pipeline 1, and a steam ejector 8 is arranged at the other, so that the steam in the external temperature steam recovery tank 5 can be transported to the shaping steam pipeline 10 in the vulcanization area through the steam ejector 8; the external temperature steam recovery pipeline 9 from the vulcanization area is connected to the middle and upper inlet of the external temperature steam recovery tank 5, the condensate recovery pipeline 11 from the vulcanization area is connected to the condensate recovery tank 7, and the suction port of the steam ejector 8 is connected to the condensate recovery pipeline 11.

[0013] Before each steamer-type tire vulcanizer 4 starts production each time, the upper steamer 41 moves downward and combines with the lower steamer 42 to form a complete steamer, that is, the mold is closed. The temperature of the steam from the external temperature steam main pipe 3 is controlled by the external temperature regulating valve 43 to the process requirement value and filled into the steamer for preheating. At this time, the steam pressure in the steamer is about 0.38MPa. The steam condensate generated during this period is selected to flow through the first external temperature discharge valve 45 and the second external temperature discharge valve 47 through the drain device 46 and discharged to the condensate recovery pipeline 11. After the preheating is completed, the external temperature discharge valve 45 cuts off the connection with the drain device 46, and first flows to the external temperature steam recovery pipeline 9 through the first external temperature discharge valve 45 and the external temperature steam recovery pipeline 9. Steam is discharged from the tank 5. When the pressure of the steamer and the external temperature steam recovery tank 5 is balanced, the first external temperature discharge valve 45 and the second external temperature discharge valve 47 select to discharge the steam to the condensate recovery tank 7 through the condensate recovery pipeline 11. After the residual pressure is discharged, the mold is opened to load the green tire. During this period, the steam in the shaping steam pipeline 10 is adjusted by the shaping regulating valve 44 to an appropriate pressure of about 0.08-0.1MPa for shaping, and then the mold is closed to start vulcanization. During vulcanization, the external temperature regulating valve 43 controls the external temperature steam to enter the steamer in a manner similar to preheating. The condensate generated by the external temperature steam during vulcanization is discharged, and the steam is recovered and discharged after the vulcanization is completed and before the mold is opened, and then the preheating process is carried out in the same manner.

[0014] The pressure in the external temperature steam recovery tank 5 is controlled by the steam compressor 6 at 0.2-0.25 MPa, that is, when the pressure reaches 0.25 MPa, the steam compressor 6 is turned on and the steam is sent to the steam source pipeline 1 after the pressure is increased.

[0015] The steam in the shaping steam pipeline 10 is formed by the steam from the external temperature steam recovery tank 5 flowing through the steam ejector 8, generating suction at the suction port of the steam ejector 8, and extracting the flash steam in the condensate recovery tank 7 and the condensate recovery pipeline 11, with a pressure of about 0.15-0.2MPa.

[0016] The external temperature steam recovery tank 5 and the condensate recovery tank 7 discharge liquids respectively by means of liquid level measurement and control devices, wherein the external temperature steam recovery tank 5 discharges to the condensate recovery tank 7, and the condensate recovery tank 7 replenishes water supply to the boiler.

Claims

1. A steam recovery device for a steamer type tire vulcanizer, provided with a steam source pipeline, the steam source pipeline is connected to the steamer type tire vulcanizer through an external temperature steam main regulating valve and an external temperature steam main pipe, the steamer type tire vulcanizer is provided with an upper steamer and a lower steamer, and is characterized in that: An external temperature steam recovery tank and a condensate recovery tank are arranged outside the steamer type tire vulcanizer. Two steam outlet pipes are arranged at the upper outlet of the external temperature steam recovery tank. A steam compressor is arranged on one of the steam outlet pipes. The outlet pipeline of the steam compressor is connected to the steam source pipeline. A steam ejector is arranged on the other steam outlet pipe. The steam outlet of the external temperature steam recovery tank is connected to the shaping steam pipeline through the steam ejector. The external temperature steam recovery pipeline is connected to the middle and upper inlet of the external temperature steam recovery tank, the condensate recovery pipeline is connected to the condensate recovery tank, and the suction port of the steam ejector is connected to the steam source pipeline. Condensate recovery pipeline; the external temperature steam main pipe is connected to the steamer type tire vulcanizer through the external temperature regulating valve, the steam condensate outlet of the steamer type tire vulcanizer is connected to the condensate recovery pipeline through the first external temperature discharge valve, the second external temperature discharge valve and the drain device, the other outlet of the first external temperature discharge valve is connected to the external temperature steam recovery pipeline and is connected to the steam inlet of the external temperature steam recovery tank, the other outlet of the second external temperature discharge valve is connected to the condensate inlet of the condensate recovery tank through the condensate recovery pipeline, and the shaping steam pipeline is connected to the shaping steam inlet of the steamer type tire vulcanizer through the shaping regulating valve.

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