JP4272022B2 - Method and system for processing unused floor covering material - Google Patents

Description

  The present invention relates to a method and a system for treating unused floor covering materials for drying, deodorizing and sterilizing unused floor covering materials used as floor coverings for laboratory animals and livestock.

  In the breeding of laboratory animals and livestock, chips such as wood and paper are used as a floor covering material to absorb animal urine and excrement.

  Here, the wood chip or the like used as the flooring material needs to absorb excrement such as animal urine, and therefore, it must have excellent absorbability of its main components, ammonia, moisture and oil. Moreover, it is necessary that terpenes and aromatic compounds that may cause harmful effects on small experimental animals are not contained.

  However, some floor covering materials such as unused wood chips that have been used in the past have insufficient absorbability or include foreign matter.

  In view of these points, an object of the present invention is to propose a processing method and a processing system for unused floor covering materials such as wood chips suitable for improvement in absorbability and removal of foreign matters.

In the method for treating an unused floor covering material of the present invention, the unused floor covering material for animals is exposed to water vapor having a pressure lower than the saturated water vapor pressure (hereinafter referred to as dry steam), and is contained in the floor covering material. foreign substances to decompose bacterial microorganisms are extracted and separated selectively dissolved in dry steam, drying of the bedding material, have rows deodorization and sterilization, the vapor density of the dry steam, an inert gas It is characterized by control. Nitrogen gas can be used as the inert gas.

  By treating the unused floor covering material for animals with dry steam, the floor covering material can be efficiently dried. Moreover, when an unused floor-laying material is heated with dry steam, the septic substance is decomposed into a hardly septic substance, and sterilization of rot bacteria is performed. Further, since ammonia that causes malodor can be separated by thermal decomposition, unused floor covering material is also deodorized. Furthermore, by controlling the severe decomposition / reduction reaction due to thermal decomposition by adjusting the temperature and pressure of dry steam, the absorbability of animal excrement in the unused floor covering material can be improved.

  Here, it is desirable that the temperature of the dry steam is in a range from 100 ° C to 200 ° C. Moreover, it is desirable that the pressure of the dry steam is in a range from 0.1 MPa to a saturated steam pressure. Furthermore, the vapor density of the dry water vapor can be controlled using an inert gas. Nitrogen gas can be used as the inert gas.

  In addition, it is desirable to separate and collect contaminants from the gas generated by the thermal decomposition.

  Next, the present invention relates to a processing system for processing an unused floor covering material by the above method, and a processing device for processing an unused floor covering material for animals, and saturated steam supplied to the processing device. A steam generator for generating, a steam supply path for supplying saturated steam generated by the steam generator to the processor, a heater attached to the processor, and the internal temperature of the processor being a predetermined temperature A heater control unit for controlling the heater, a gas discharge path for discharging gas from the inside of the processor, and a control for adjusting the amount of gas discharged via the gas discharge path A valve and a valve control unit that controls the control valve so that the internal pressure of the processing unit becomes a predetermined pressure, and the inside of the processing unit becomes a dry steam atmosphere. It is characterized in that degree and the internal pressure is controlled.

  In the treatment system of the present invention, the temperature and pressure of the saturated steam supplied to the inside of the processor are adjusted, and the inside of the processor can be quickly and surely made a dry steam atmosphere. By holding the inside of the processor in a dry steam atmosphere, the unused floor covering material to be processed can be efficiently dried. In addition, the unused floor covering material is heated by dry steam, so that the perishable substance is decomposed into a hardly perishable substance, and sterilization of spoilage bacteria and the like is performed. Further, ammonia that causes malodor can be separated by selective dissolution in dry steam and extraction / decomposition, so that unused floor covering material is also deodorized. Furthermore, if the severe decomposition / reduction reaction by thermal decomposition is controlled by adjusting the temperature and pressure of dry steam, the absorbability of animal excrement in the unused floor covering material after treatment can be improved.

  Here, it is desirable that the temperature of the dry water vapor inside the processor is a value within a range from 100 ° C to 200 ° C. Moreover, it is desirable that the pressure of the dry water vapor is a value within a range from 0.1 MPa to a saturated water vapor pressure.

  The processing system of the present invention includes an inert gas supply unit capable of supplying an inert gas of a predetermined pressure at a predetermined flow rate, and an inert gas for supplying the inert gas from the inert gas supply unit to the processor. An active gas supply path, and the supply of the inert gas to the processing unit adjusts the vapor density inside the processing unit and / or cools the unused floor covering material after processing. It is said.

  For example, a first on-off valve is inserted into the inert gas supply path, and a portion upstream of the on-off valve is communicated with the water vapor supply path via a second on-off valve so that the steam inside the processor When adjusting the density, the first on-off valve is opened, an inert gas is mixed with saturated water vapor and supplied to the processor, and the second on-off valve is opened to cool the unused floor covering material after the treatment. Only gas may be supplied to the processor.

  By adjusting the vapor density, the unused floor covering material can be processed efficiently. In addition, since the unused floor covering material can be cooled in a short time using an inert gas after the treatment, the treatment time can be shortened. In general, nitrogen gas may be used as the inert gas.

  Next, as the steam generator, one having a configuration including a circulation path and a water tank, a water pump, a steam generator, a cooler, and a pressure holding valve arranged along the circulation path can be adopted. In addition, a steam generator that generates water vapor by flowing water through a coiled passage in a heated state can be employed as the steam generator.

  On the other hand, it has a gas-liquid separator that separates a mixed substance contained in the gas discharged from the gas discharge passage, and a deodorizer that removes odor from the gas discharged from the gas-liquid separator. desirable.

  In addition, a drain path for opening the inside of the processing unit to the atmosphere and a drain valve for opening and closing the drain path are provided so that the processing unit remains in a high pressure state after the processing and is not opened. In view of safety, it is preferable to release the interior of the processing unit through the drain valve after the processing of the unused floor covering material in the processing unit is completed.

  Next, the present invention is a method for treating an unused floor covering material using the processing system for an unused floor covering material having the above-described configuration, in which an unused floor covering material to be treated is placed in the processing unit and the processing is performed. The vessel is sealed, saturated steam is supplied from the steam generator into the processor, the temperature inside the processor is adjusted by the heater, and the unused floor covering material in the processor is kept at a predetermined temperature. Then, by controlling the internal pressure of the processor by driving the control valve, the inside of the processor is maintained in a dry steam atmosphere for a predetermined period of time, and the saturated steam from the steam generator to the processor is maintained. After the supply of gas is stopped, the interior of the processor is opened to the atmosphere by opening the gas discharge passage, and in this state, the second on-off valve is opened, and the inert gas supply unit opens the interior of the processor. After supplying the inert gas to cool the unused floor covering material after treatment, the second on-off valve is closed to stop the supply of the inert gas, the drain valve is opened, and then the processor And the unused floor covering material after processing is taken out.

  As described above, in the method for treating an unused floor covering material of the present invention, dry steam (water vapor having a pressure lower than the saturated steam pressure) is used to dry, deodorize and sterilize the unused floor covering material. . By using dry steam, it was confirmed that the unused floor covering material can be efficiently dried, the septic substances mixed therein can be decomposed into hardly septic substances, and the rot bacteria can be sterilized. In addition, it was confirmed that the ammonia causing the bad odor was separated by pyrolysis, and the unused floor covering material could be deodorized. Furthermore, it was also confirmed that the absorbability of animal excrement in the unused floor covering material can be improved.

  Moreover, according to the processing system of the unused flooring material of this invention, the unused flooring material thrown into the processing device can be efficiently processed using dry steam, and the characteristic can be improved. Moreover, it is possible to efficiently control the dry water vapor density using an inert gas such as nitrogen gas and cool the unused floor covering material after the treatment. Furthermore, since the exhaust gas from the processing device is released into the atmosphere via the gas-liquid separator and the deodorization device, foreign substances and odors contained in the exhaust gas can be reliably removed. In addition, since the drain valve for opening the processing device to the atmosphere is provided, it is possible to reliably prevent the processing device from being opened in a high pressure state, and it is safe.

  Hereinafter, an example of a processing system for processing an unused floor covering material by a method for processing an unused floor covering material to which the present invention is applied will be described with reference to the drawings.

(overall structure)
FIG. 1A is a plan view of the processing system, and FIG. 1B is a front view thereof. FIG. 2 is an overall configuration diagram showing a piping system of the processing system. If it demonstrates with reference to these figures, the processing system 1 has the processing apparatus 2 and the steam generator 5, and the water vapor | steam supply pipe | tube 7 and the nitrogen gas supply pipe | tube 8 are arrange | positioned among these. The processing device 2 has a processing device (steamer) 22 composed of a pressure vessel installed in a horizontal state on the device base 21, and a steam supply pipe 7 and a nitrogen gas supply pipe 8 are provided at one end of the processing device 22. Are communicating.

  A clutch-type opening / closing lid 22a is attached to the other end of the processor 22, and the interior 22b of the processor 22 is kept airtight when the opening / closing lid 22a is closed. A cylindrical sample basket 23 is coaxially arranged in the inside 22 b of the processor 22, and an unused floor covering material to be processed can be mounted on the sample basket 23. When the opening / closing lid 22 a is opened, the sample basket 23 can be pulled out from the processor 22 along the slide rail 24. A steam blowing pipe 25 extends in the axial direction in the interior 22 b of the processor 22, and an end of the steam blowing pipe 25 is connected to the water vapor supply pipe 7.

  A heater 26 is attached so as to surround the outer periphery of the cylindrical body of the pressure vessel of the processor 22, and the driving of the heater 26 is controlled by a temperature controller 27 (see FIG. 2). The temperature controller 27 drives the heater 26 based on the detection result of the temperature sensor 28 for detecting the temperature of the unused floor covering material to be processed, which is mounted on the sample basket 23, and adjusts the internal temperature of the processor 22. Hold at a predetermined value.

  Further, an exhaust pipe 29 for discharging exhaust gas from the inside 22b to the outside is connected to the processor 22, and the exhaust pipe 29 is connected to the exhaust pipe 29 from the processor 22 side by a filter 30, a pressure gauge 31, A control valve 32, a gas-liquid separation device 33, and a deodorization device 34 are connected, and the interior 22b of the processor 22 can be opened to the atmosphere via these. The pressure in the inside 22 b of the processor 22 is displayed on the pressure gauge 35 and detected by the pressure regulator 36. Based on the detected pressure, the pressure adjuster 36 adjusts the internal pressure of the processing chamber 22 to be a predetermined value by opening and closing the control valve 32 and adjusting the amount of gas discharged from the processing device 22. Moreover, the inside 22b of the processor 22 can be opened to the atmosphere via a safety valve 37, and the safety valve 37 prevents an abnormal increase in internal pressure.

  A drain pipe 38 is also connected to the processor 22 of this example. A filter 39 is inserted into the drain pipe 38 and branches bifurcated at a downstream portion of the filter 39, one side is opened to the atmosphere via a stop valve 40 and a steam trap 41, and the other side is a stop valve 42. Through the atmosphere.

  Next, the steam generator 5 includes a water tank 51 storing pure water or ion-exchanged water, a water pump 52, a steam generator 53, an overflow type cooler 54, and a pressure holding valve 55, which are installed in the apparatus base. 56. The water in the water tank 51 is supplied to the water pump 52 through the circulation pipe 57a in which the filter 58 is inserted, and the water discharged from the water pump 52 is supplied to the steam generator 53 through the circulation pipe 57b. The steam generator 53 includes a coil-shaped passage 57c communicating with the circulation pipe 57b, and the passage 57c is heated from the outside by the electric furnace 53a, so that water is converted into water vapor while passing through the passage 57c. . The electric furnace 53a is controlled by a temperature controller 53b. The generated steam returns to the water tank 51 through the circulation pipe 57d and the circulation pipe 57e in which the cooler 54 and the pressure holding valve 55 are inserted. Here, the water vapor supply pipe 7 communicates with the circulation pipe 57d through the stop valve 59. When the stop valve 59 is opened, the saturated steam generated by the steam generator 53 is supplied to the processor 22 via the steam supply pipe 7, and only excess steam is refluxed via the circulation pipes 57d and 57e. . The pressure of the saturated water vapor supplied to the processing apparatus 2 side is adjusted by a pressure holding valve 55. A pressure gauge 60 and a safety valve 61 are connected to the circulation pipe 57d.

  Further, a nitrogen gas supply pipe 62 is attached to the steam generator 5, and this nitrogen gas supply pipe 62 is connected to the processing apparatus 2 side via a mass flow meter 63, a stop valve 64 and a check valve 65. The nitrogen gas supply pipe 8 is connected. The upstream end 62a of the nitrogen gas supply pipe 62 communicates with the nitrogen gas tank 68 through an upstream pipe 67 in which the pressure reducing valve 66 is inserted. Further, the upstream end 62a of the nitrogen gas supply pipe 62 communicates with the upstream side of the control valve 32 mounted on the processing apparatus 22 side via a discharge side pipe 70 into which the pressure reducing valve 69 is inserted.

  Here, the water vapor supply pipe 7 and the nitrogen gas supply pipe 8 that are spanned between the processing apparatus 2 and the steam generation apparatus 5 having the above-described configuration are respectively covered with line heaters 9 and 10, and these are interposed therebetween. Thus, water vapor and nitrogen gas supplied to the processing apparatus 2 can be heated. A stop valve 11 as a safety valve is connected to the water vapor supply pipe 7. Further, the nitrogen gas supply pipe 8 is connected at its downstream end to the processor 22 via the first stop valve 12 and at a portion upstream of the first stop valve 12 at the second stop. The valve 13 communicates with a downstream portion of the water vapor supply pipe 7.

(Processing operation)
The processing operation of the unused floor covering material by the processing system 1 having the above configuration will be described. The basic processing operation is as follows. First, an unused floor covering material for animals to be treated is introduced into the treatment device 22, and saturated steam is supplied to the treatment device 22. After the internal temperature of the processor 22 reaches a predetermined temperature by the heater 26, the control valve 32 is adjusted to fill the interior 22b of the processor 22 with water vapor having a pressure lower than the saturated water vapor pressure, that is, Hold in an atmosphere of dry steam for a predetermined time. Next, after the supply of saturated water vapor from the steam generator 5 is stopped, the internal pressure of the processor 22 is reduced while supplying nitrogen to the processor 22 and cooling the treated unused floor covering material therein. Set to atmospheric pressure. After it is confirmed that the internal pressure has become atmospheric pressure, the stop valve 42 (drain valve) is opened for safety, and then the processor 22 is opened to take out the unused unused floor covering material.

  Next, the processing operation will be described in detail. First, pure water or ion-exchanged water is put into the water tank 51 of the steam generator 5, the water pump 52 is turned on, and the temperature controller 53b of the steam generator 53 is turned on. As a result, the water in the water tank 51 circulates through the circulation path (circulation pipes 57a, 57b, 57c, 57d, 57e), and the coiled passage 57c of the steam generator 53 is heated by the electric furnace 53a. Water vapor is formed during the passage. The pressure of the water vapor is adjusted by the pressure holding valve 55. For example, when the water vapor temperature is 170 ° C., the water vapor temperature is adjusted to 0.8 Mpa.

  On the other hand, on the processing apparatus 2 side, after opening the processing device 22 and mounting an unused floor covering material to be processed in the sample basket 23, the open / close lid 22a is closed. Thereafter, the stop valve 59 of the steam supply pipe 7 is opened, and the saturated steam generated by the steam generator 5 is introduced into the interior 22 b of the processor 22. At the same time, the line heater 9 is turned on, and the temperature controller 27 that controls the heater 26 of the processor 22 is turned on. As a result, saturated water vapor is filled in the processor 22 and the internal temperature of the processor 22 rises.

  The temperature sensor 28 monitors the temperature of the unused floor covering material to be processed by the processor 22. After the unused floor covering material to be processed in the processing unit 22 is held for a predetermined period in a predetermined heating state, the opening degree of the control valve 32 is adjusted by the pressure controller 36, and the inside of the processing unit 22. By adjusting the pressure, the inside 22b of the processor 22 is maintained in a dry steam atmosphere. After maintaining this dry steam atmosphere for a predetermined time, the steam supply stop valve 59 is closed and the supply of saturated steam is stopped. Thereafter, the control valve 32 is controlled by the pressure regulator 36, and the inside 22b of the processor 22 is lowered to the atmospheric pressure.

  Thus, by keeping the inside of the processor 22 in a dry steam atmosphere, the unused floor covering material to be processed can be efficiently dried. In addition, when an unused floor covering material is heated by dry steam, the septic substance is decomposed into a hardly septic substance, and sterilization of rot bacteria is performed. Furthermore, since ammonia that causes malodor is also separated by selective dissolution in dry steam and extraction / separation, the unused floor covering material is also deodorized. Furthermore, severe decomposition / reduction reactions due to thermal decomposition can be controlled by adjusting the temperature and pressure of dry steam, and by controlling such decomposition / reduction reactions, Improves animal excretion absorption.

  By setting the internal temperature of the processor 22, that is, the temperature of the dry water vapor to a temperature from 100 ° C. to 200 ° C., and setting the internal pressure to a pressure from 0.1 MPa to the saturated water vapor pressure, The decomposition / reduction reaction during the thermal decomposition of the laying material can be mitigated.

  Here, the density of the dry steam in the inside 22b of the processor 22 can be adjusted as follows. The stop valves 64 and 13 for supplying nitrogen gas are opened, and the line heater 10 is turned on. As a result, nitrogen gas is supplied from the nitrogen gas supply pipe 8 to the water vapor supply pipe 7 via the stop valve 13, and is supplied to the inside 22a of the processor 22 together with the saturated water vapor. By adjusting the supply amount of nitrogen gas, the density of dry water vapor in the interior 22b of the processor 22 can be brought to a desired state. By controlling the density of the dry steam, the decomposition / reduction reaction rate of the unused floor covering material by the dry steam can be controlled.

  In this process of treating unused floor covering material, the mixed gas is removed from the exhaust gas discharged from the processor 22 through the gas / liquid separator 33 and the deodorizer 34 after passing through the control valve 32. And deodorized and released to the atmosphere.

  After the processing of the unused floor covering material is completed, the nitrogen supply stop valve 64 and the stop valve 12 are opened while the control valve 32 is kept open to the atmosphere, and the cooling valve is supplied via the nitrogen supply pipe 8. Nitrogen gas is supplied to the inside 22 a of the processor 22. The supply pressure of nitrogen gas is controlled to a predetermined value by the pressure reducing valves 66 and 69, and the flow rate thereof is controlled by the mass flow controller 63. After cooling, the stop valves 64 and 12 are closed to stop the supply of nitrogen gas.

  Thereafter, including the meaning of safety confirmation, the stop valve (drain valve) 40 or 42 is opened, the interior 22b of the processor 22 is opened to the atmosphere, and the processing apparatus 2 is completely stopped. On the steam generator 5 side, the water pump 52 is turned off after the temperature regulator 53b of the steam generator 53 is turned off. Thereafter, the supply of cooling water to the cooler 54 is stopped, and the steam generator 5 is completely stopped. Finally, the opening / closing lid 22a of the processor 22 is opened, and the unused floor covering material after processing is taken out.

(Experimental example)
Here, the following experiment was performed using the processing system 1 of this example. As water vapor (dry water vapor) having a pressure lower than the saturated water vapor pressure, one having a temperature of 140 ° C. and a pressure of 0.2 Mpa, a temperature of 170 ° C. and a pressure of 0.4 MPa, and a treatment time of 30 minutes and 60 minutes, Wood chips, an unused floor covering material for animals, were treated. Since the saturated water vapor pressure of the water vapor is 140 ° C. and the pressure is 0.36 Mpa, the temperature is 170 ° C. and the pressure is 0.79 Mpa, the water vapor used in this experiment is a water vapor having a pressure lower than the saturated water vapor pressure. It has become.

  As a result of treating 80 g of unused (new) wood chips, the weight was reduced from 45.2 g to 47.1 g, and it was confirmed that the wood chips were sufficiently dried. Also, the odor was completely removed. This is considered to be due to the removal of tempels and aromatic compounds that may cause harm to small experimental animals contained in unused wood chips.

  As described above, according to the treatment method and the treatment system of this example, it was confirmed that the unused floor covering material can be dried and deodorized, and its absorbability can be improved.

It is the top view and front view of the processing system to which this invention is applied. It is a whole block diagram which shows the piping state of the processing system of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing system 2 Processing apparatus 5 Steam generating apparatus 7 Water vapor supply pipe 8 Nitrogen gas supply pipe 9, 10 Line heater 12, 13 Stop valve 22 Processor 22a Opening / closing lid 22b Inside 23 Sample basket 25 Steam blowing pipe 26 Heater 27 Temperature controller 28 Temperature sensor 29 Exhaust pipe 32 Control valve 33 Gas-liquid separator 34 Deodorizer 36 Pressure regulator 38 Drain pipe 40, 42 Stop valve 51 Water tank 52 Water pump 53 Steam generator 53a Electric furnace 53b Temperature regulator 54 Cooler 55 Holding pressure valves 57a, 57b, 57d, 57e Circulation pipe 57c Coiled passage 68 Nitrogen gas tank

Claims (15)

Unused animal flooring material is exposed to water vapor at a pressure lower than the saturated water vapor pressure (hereinafter referred to as dry water vapor), and foreign substances contained in the flooring material are selectively dissolved in dry water vapor and extracted. decomposing the bacterial microorganisms as well as separation, drying of the bedding material, it has rows deodorization and sterilization, the steam density of the dry steam treatment method unused bedding material be controlled using an inert gas. In claim 1,
The processing method of the unused floor covering material which makes the temperature of the said dry water vapor within the range from 100 degreeC to 200 degreeC. In claim 1 or 2,
The processing method of the unused floor covering material which makes the pressure of the said dry water vapor within the range from 0.1MPa to saturated water vapor pressure. In any one of claims 1 to 3,
The method for treating an unused floor covering material, wherein the inert gas is nitrogen gas. In any one of claims 1 to 4,
A method for treating an unused floor covering material in which contaminants are separated and recovered from the gas generated by the thermal decomposition. Unused animal flooring material is exposed to water vapor at a pressure lower than the saturated water vapor pressure (hereinafter referred to as dry water vapor), and foreign substances contained in the flooring material are selectively dissolved in dry water vapor and extracted. A treatment system for unused floor covering material that separates and decomposes bacterial microorganisms and performs drying, deodorization and sterilization of the floor covering material,
A processor for processing unused floor coverings for animals;
A steam generator for generating water vapor to be supplied to the processor;
A water vapor supply path for supplying water vapor generated by the steam generator to the processor;
A heater attached to the processor;
A heater control unit that controls the heater so that the internal temperature of the processor becomes a predetermined temperature;
A gas discharge path for discharging gas from the inside of the processor to the outside;
A control valve for controlling the amount of gas discharged via the gas discharge path;
A valve control unit that controls the control valve so that the internal pressure of the processor becomes a predetermined pressure;
The processing system of the unused floor covering material by which the said internal temperature and internal pressure are controlled so that the inside of the said processor may become dry steam atmosphere. In claim 6,
The processing system of the unused floor covering material which makes the temperature of the said dry water vapor | steam inside the said processor the value within the range from 100 degreeC to 200 degreeC. In claim 6 or 7,
The processing system of the unused floor covering material which makes the pressure of the said dry water vapor the value within the range from 0.1MPa to saturated water vapor pressure. In claim 6, 7 or 8,
An inert gas supply unit capable of supplying an inert gas of a predetermined pressure at a predetermined flow rate;
An inert gas supply path for supplying an inert gas from the inert gas supply unit to the processor,
An unused floor covering material processing system in which the inert gas is supplied to the processor to adjust the vapor density inside the processor and / or to cool the floor covering material after processing. In claim 9,
A first on-off valve is inserted into the inert gas supply path, and a portion upstream of the on-off valve communicates with the water vapor supply path via a second on-off valve.
An unused floor covering material processing system in which the first on-off valve is opened when the vapor density inside the processor is adjusted, and the second on-off valve is opened when the treated floor covering material is cooled. In claim 9 or 10,
The processing system of the unused floor covering material whose said inert gas is nitrogen gas. In any one of claims 6 to 11,
The steam generator includes a circulation path, and a water tank, a water pump, a steam generator, a cooler, and a pressure holding valve arranged along the circulation path, and the steam generator is in a coiled state in a heated state. Water is caused to flow through the passage to generate water vapor, the generated water vapor is supplied to the water vapor supply path, excess water vapor is recirculated along the circulation path, and is supplied to the water vapor supply path by the pressure-holding valve. An unused floor covering material processing system in which the water vapor pressure is controlled. In any one of claims 6 to 12,
A processing system for unused floor covering material, comprising: a gas-liquid separator that separates a mixed substance contained in gas discharged from the gas discharge passage; and a deodorizing device for gas discharged from the gas-liquid separator. . In any one of claims 6 to 13,
A processing system for unused floor covering material having a drain passage for opening the interior of the processor after the processing of the unused floor covering material to the atmosphere and a drain valve for opening and closing the drain passage. . A method for treating unused floor covering material using the processing system for unused floor covering material according to claim 14,
Put the unused floor covering material to be treated in the treatment device and seal the treatment device,
While supplying saturated steam from the steam generator into the processor, the heater adjusts the temperature inside the processor,
After the unused floor covering material in the processor reaches a predetermined temperature, the control valve is driven to adjust the internal pressure of the processor, so that the interior of the processor is kept in a dry steam atmosphere for a predetermined period. Hold over,
After stopping the supply of saturated water vapor from the steam generator to the processor, the inside of the processor is opened to the atmosphere by opening the gas discharge path,
In this state, the second on-off valve is opened, the inert gas is supplied from the inert gas supply unit into the processing unit to cool the unused floor covering material after processing,
Open the drain valve after closing the second on-off valve and stopping the supply of inert gas,
Then, the processing method of the unused floor covering material which opens the said processor and takes out the said unused floor covering material after processing.

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