Abstract: A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFR2 is greater than MFR1 and a ratio of MFR2 to MFR1 is from 2 to 5, where MFR1 represents a melt mass-flow rate (MFR) of the first resin particle and MFR2 represents a melt mass-flow rate of the second resin particle.

Abstract: A resin powder contains a resin, wherein the proportion of fine powder having a number diameter of 40 percent or less of a mean number diameter Mn of the resin powder is 30 percent or less in the resin powder.

Abstract: A particle for solid freeform fabrication having a columnar form has end surfaces and a side surface, wherein one of the end surfaces partially covers the side surface.

Abstract: A resin powder contains a resin, wherein the proportion of fine powder having a number diameter of 40 percent or less of a mean number diameter Mn of the resin powder is 30 percent or less in the resin powder.

Abstract: Provided is a resin powder for producing a three-dimensional object, wherein the resin powder has a number-average equivalent circle diameter of 10 micrometers or greater but 150 micrometers or less, and wherein a median in an equivalent circle diameter-based particle size distribution of the resin powder is higher than the average equivalent circle diameter.

Abstract: A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFR2 is greater than MFR1 and a ratio of MFR2 to MFR1 is from 2 to 5, where MFR1 represents a melt mass-flow rate (MFR) of the first resin particle and MFR2 represents a melt mass-flow rate of the second resin particle.

Abstract: A particle for solid freeform fabrication having a columnar form has end surfaces and a side surface, wherein one of the end surfaces partially covers the side surface.

Abstract: A fluid treatment apparatus for treating a target fluid is provided. The fluid treatment apparatus includes a cylindrical reactor and one or more catalyst members each having a rod-like or plate-like shape extending in a longitudinal direction within the reactor. The cylindrical reactor decomposes an organic substance contained in a mixed fluid of the target fluid with an oxidant by an oxidation reaction under heat and pressure. The cylindrical reactor has an introduction port on one end and a discharge port on the other end. An upstream end surface, relative to a direction of flow of the target fluid, of each of the catalyst members is located in a downstream vicinity of or upstream from an inflow position where the target fluid flows into the reactor through the introduction port. Each of the catalyst members is suspended with the upstream end surface being fixed.

Abstract: A fluid treatment apparatus includes a reactor that decomposes an organic matter contained in a mixed fluid of a fluid to be treated and an oxidizing agent, an oxidizing agent injector that includes an injection port to inject the oxidizing agent into the reactor, a fluid discharger that is disposed to surround the oxidizing agent injector and includes an outlet to discharge the fluid in the reactor, and a pressurizer that pressurizes the oxidizing agent. The fluid discharger has a fluid passage a diameter of which is larger than a maximum particle diameter of a solid material contained in the fluid and a shape of which does not create a pressure difference in the fluid passage, the outlet of the fluid discharger being provided to discharge the fluid toward the oxidizing agent injector. The apparatus atomizes the fluid by pressure energy of the injected oxidizing agent.

Abstract: A fluid purifying apparatus that purifies fluid containing organic matter has a reactor including a first transfer part that receives the fluid from outside and transfers the fluid in a vertical direction from an upper side to a lower side while heating and pressurizing the fluid and mixing the fluid with an oxidant, a second transfer part that receives the fluid that has passed through the first transfer part and transfers the fluid in the vertical direction from the lower side to the upper side, and a partition member that partitions an upper part of the reactor into the first transfer part and the second transfer part, and a solid storage part that communicates with the first transfer part and the second transfer part below the partition member and receives solid matter contained in the fluid that settles while the fluid is transferred.

Abstract: A fluid treatment apparatus for treating a target fluid is provided. The fluid treatment apparatus includes a cylindrical reactor and one or more catalyst members each having a rod-like or plate-like shape extending in a longitudinal direction within the reactor. The cylindrical reactor decomposes an organic substance contained in a mixed fluid of the target fluid with an oxidant by an oxidation reaction under heat and pressure. The cylindrical reactor has an introduction port on one end and a discharge port on the other end. An upstream end surface, relative to a direction of flow of the target fluid, of each of the catalyst members is located in a downstream vicinity of or upstream from an inflow position where the target fluid flows into the reactor through the introduction port. Each of the catalyst members is suspended with the upstream end surface being fixed.

Abstract: A fluid treatment apparatus for treating a target fluid is provided. The fluid treatment apparatus includes a reactor to decompose an organic substance contained in a mixed fluid of the target fluid with an oxidant by an oxidation reaction. The reactor includes a cylindrical base material, a catalyst, and a migration space. The catalyst accelerates the oxidation reaction of the organic substance, and is disposed along an inner periphery of the cylindrical base material. Into the migration space, solids precipitated in the oxidation reaction migrate in a longitudinal direction without accumulating.

Abstract: A fluid purification system includes a reaction tank which purifies a purification target fluid by decomposing an organic substance in a purification target fluid with an oxidation reaction while heating and pressurizing a mixed fluid of the purification target fluid and an oxidant; a crusher which crushes an organic solid waste so as to obtain an organic crushed product; and a mixer which mixes the organic crushed product and liquid so as to obtain high concentration organic slurry.

Abstract: A fluid purifying apparatus that purifies fluid containing organic matter has a reactor including a first transfer part that receives the fluid from outside and transfers the fluid in a vertical direction from an upper side to a lower side while heating and pressurizing the fluid and mixing the fluid with an oxidant, a second transfer part that receives the fluid that has passed through the first transfer part and transfers the fluid in the vertical direction from the lower side to the upper side, and a partition member that partitions an upper part of the reactor into the first transfer part and the second transfer part, and a solid storage part that communicates with the first transfer part and the second transfer part below the partition member and receives solid matter contained in the fluid that settles while the fluid is transferred.

Abstract: An inner tube is provided with a protruding portion protruding from an outer peripheral surface of the tube, in a position extending throughout the entire area of the outer peripheral surface of the tube, in a region located outside an outer tube, of the entire area in a longitudinal direction of the inner tube inserted into a through-hole of a discharge side wall of the outer tube, and the protruding portion of the inner tube is pressed by an outlet joint toward the discharge side wall along an axial direction of the outer tube, and thereby, the inner tube is cantilevered by the discharge side wall.

Abstract: A disclosed image removing device includes a roller peeling member onto which a recording material with the image forming substance having thermoplastic properties is superposed; a heating unit configured to heat the image forming substance; a pressurizing unit configured to apply pressure to the roller peeling member and the recording material superposed thereon to cause the image forming substance heated by the heating unit to adhere to the roller peeling member; a separating unit configured to separate the recording material from the roller peeling member after the image forming substance has adhered to the roller peeling member; and a removing unit configured to remove, from the roller peeling member, the image forming substance that has been transferred from the recording material to the roller peeling member. The removing unit is driven in such a manner that the removing unit and the roller peeling member pressurize/contact/slide against each other.

Abstract: A cleaning method for cleaning a powder container by introducing a cleaning medium into the powder container from a first opening part of the powder container for attaching powder in the powder container to the cleaning medium and discharging the cleaning medium together with the powder from a second opening part situated opposite from the first opening part is disclosed. The method includes a step of releasing the cleaning medium from a position higher than the first opening part of the powder container.

Abstract: A dry cleaning apparatus which causes cleaning agent to fly in a gas current to impact an object to be cleaned so as to remove extraneous substance attached to the object includes a cleaning tank defining an interior space for accommodating the cleaning agent and the object with the attached extraneous substance, an inflow unit configured to guide a gas current into the cleaning tank through an inlet, an aspiration unit configured to discharge gas from the cleaning tank through an aspiration opening, and a separation unit disposed between the interior space of the cleaning tank and both the inflow unit and the aspiration unit, the separation unit having openings that allow the gas and the extraneous substance to pass through but do not allow the cleaning agent to pass through, wherein the inlet, the aspiration opening, and the separation unit are configured such that relative motion is created between the separation unit and both the inlet and the aspiration opening.

Abstract: A disclosed image removing device includes a roller peeling member onto which a recording material with the image forming substance having thermoplastic properties is superposed; a heating unit configured to heat the image forming substance; a pressurizing unit configured to apply pressure to the roller peeling member and the recording material superposed thereon to cause the image forming substance heated by the heating unit to adhere to the roller peeling member; a separating unit configured to separate the recording material from the roller peeling member after the image forming substance has adhered to the roller peeling member; and a removing unit configured to remove, from the roller peeling member, the image forming substance that has been transferred from the recording material to the roller peeling member. The removing unit is driven in such a manner that the removing unit and the roller peeling member pressurize/contact/slide against each other.

Abstract: A cleaning method for cleaning a powder container by introducing a cleaning medium into the powder container from a first opening part of the powder container for attaching powder in the powder container to the cleaning medium and discharging the cleaning medium together with the powder from a second opening part situated opposite from the first opening part is disclosed. The method includes a step of releasing the cleaning medium from a position higher than the first opening part of the powder container.