Abstract: The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.

Abstract: An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.

Abstract: A laundry treating apparatus includes: a drum configured to receive laundry and to rotate about a rotation axis that extends in a front-rear direction of the laundry treating apparatus; and a lifter disposed on an inner circumferential surface of the drum and configured to rotate about the rotation axis based on rotation of the drum. The lifter includes: a lifter upper plate portion spaced apart from the inner circumferential surface of the drum, a lifter sidewall portion that is made of metal and that extends from lifter upper plate portion toward the inner circumferential surface of the drum, and a side protrusion that protrudes from an outer surface of the lifter sidewall portion. The lifter sidewall portion has a lower end coupled to the inner circumferential surface of the drum and an upper end connected to the lifter upper plate portion.

Abstract: A laundry treating apparatus includes: a drum defining a mounting slot and a lifter coupled to the mounting slot and disposed on an inner circumferential surface of the drum. A lifter frame includes: a frame base coupled to the inner circumferential surface; a frame upper plate; a frame sidewall that connects the frame upper plate to the frame base and that defines a lateral through-hole; and an insertion protrusion configured to be inserted into the mounting slot. The insertion protrusion includes a vertical portion that extends downward from a bottom surface of the frame base to the frame base and a catching portion that is curved from a lower end of the vertical portion toward an inside of the periphery of the frame base. A projection plane of the catching portion onto the frame base is positioned within a projection plane of the lateral through-hole onto the frame base.

Abstract: A laundry treating apparatus includes: a drum and a lifter that is disposed on an inner circumferential surface of the drum and that is configured to rotate with the drum. The lifter includes a lifter frame coupled to the drum and a frame cover that covers the lifter frame. The lifter frame includes: a frame base coupled to the inner circumferential surface of the drum; a frame upper plate spaced apart from the frame base in a direction toward an inside of the drum; a frame sidewall that connects the frame upper plate to the frame base; and a spacer that protrudes from the frame upper plate toward an inner surface of the frame cover and that allows the inner surface of the frame cover to be spaced apart from the frame upper plate.

Abstract: A laundry treating apparatus includes a drum and a lifter disposed on an inner circumferential surface of the drum and configured to rotate with the drum. The lifter includes a lifter frame installed on the inner circumferential surface of the drum and a frame cover coupled to the lifter frame. The lifter frame includes a frame base coupled to the inner circumferential surface, a frame upper plate having a first water flow through-hole, and a frame sidewall that connects the frame upper plate to the frame base and that defines a second water flow through-hole. The frame cover includes a cover upper plate having a water flow discharge hole configured to discharge, into the drum, washing water having passed through at least one of the first water flow through-hole or the second water flow through-hole, and a cover sidewall that extends from the cover upper plate to the frame base.

Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.

Abstract: A laundry treating apparatus includes: a drum configured to rotate about a rotation axis and a lifter disposed on an inner circumferential surface of the drum and configured to rotate with the drum. The lifter includes: a lifter frame installed on the inner circumferential surface and a frame cover that is coupled to the lifter frame and that protrudes radially inward from the inner circumferential surface toward the rotation axis. The frame cover includes: a cover upper plate that is spaced apart from the inner circumferential surface and that defines a water flow discharge hole configured to discharge, into the drum, washing water received into the lifter; a cover sidewall that extends from the cover upper plate toward the inner circumferential surface; and an upper plate protrusion that protrudes from the cover upper plate toward the rotation axis.

Abstract: A laundry treating apparatus includes a drum and a lifter disposed on an inner circumferential surface of the drum and configured to rotate with the drum. The lifter includes a lifter frame installed on the inner circumferential surface of the drum and a frame cover coupled to the lifter frame. The lifter frame includes: a frame base coupled to the inner circumferential surface; a frame upper plate having a first water flow through-hole; and a frame sidewall that connects the frame upper plate to the frame base and that defines a second water flow through-hole. The frame cover includes: a cover upper plate having a water flow discharge hole configured to discharge, into the drum, washing water having passed through at least one of the first water flow through-hole or the second water flow through-hole; and a cover sidewall that extends from the cover upper plate to the frame base.

Abstract: The present disclosure provides a reactor cleaning apparatus including: a fixing part having a partial region inserted into a hole formed in an upper portion of a reactor to be coupled to the reactor and fixing a pipe; the pipe inserted into a hole formed in the fixing part, protruding downward from the fixing part, and having a length adjustable in a vertical direction; a spray nozzle provided at a lower end of the pipe; and a screener provided on a lower side surface of the pipe, and a reactor cleaning method using the same.

Abstract: The present disclosure provides an apparatus for preparing oligomer including: a reactor; a gas-liquid separator; a solvent transfer line; a second transfer line; a first spray nozzle unit; and a second spray nozzle unit. The apparatus is capable of improving stability of the entire process by including a first spray nozzle unit and a second spray nozzle unit in a reactor and thus preventing by-products containing polymer substances such as C20+ from being entrained with a desired product during a reaction.

Abstract: Provided is an apparatus for preparing oligomer including: a reactor for carrying out oligomerization reaction by supplying a monomer stream and a solvent stream; and line 1 and line 2 which are separately provided in a lower side of the reactor, wherein line 1 includes a first level control valve and line 2 includes a second level control valve, and the reactor is periodically alternately operated in first operation mode and second operation mode, thereby switching a pipe through which the product is discharged, so that a plugging phenomenon of the pipe through which the product is discharged and the valve can be prevented.

Abstract: Provided is a method of registering a code set of a control target device using a set top box, the method including receiving a manual setting start request message, which is a message requesting a start of manual setting, from the set top box; selecting one of at least two manufacturers displayed on the control target device and providing information on the selected manufacturer to the set top box; providing a total index corresponding to the selected manufacturer requested by the set top box to the set top box; checking whether the control target device is remotely controlled by transmitting a control code constituting a code set corresponding to an index displayed on the control target device to the control target device; and registering the code set as a code set for remotely controlling the control target device when the control target device is remotely controlled.

Abstract: Provided is a method of registering a code set of a control target device using a set top box, the method including receiving a manual setting start request message, which is a message requesting a start of manual setting, from the set top box; selecting one of at least two manufacturers displayed on the control target device and providing information on the selected manufacturer to the set top box; providing a total index corresponding to the selected manufacturer requested by the set top box to the set top box; checking whether the control target device is remotely controlled by transmitting a control code constituting a code set corresponding to an index displayed on the control target device to the control target device; and registering the code set as a code set for remotely controlling the control target device when the control target device is remotely controlled.

Abstract: A laundry treating apparatus includes: a drum defining a mounting slot and a lifter coupled to the mounting slot and disposed on an inner circumferential surface of the drum. A lifter frame includes: a frame base coupled to the inner circumferential surface; a frame upper plate; a frame sidewall that connects the frame upper plate to the frame base and that defines a lateral through-hole; and an insertion protrusion configured to be inserted into the mounting slot. The insertion protrusion includes a vertical portion that extends downward from a bottom surface of the frame base to the frame base and a catching portion that is curved from a lower end of the vertical portion toward an inside of the periphery of the frame base. A projection plane of the catching portion onto the frame base is positioned within a projection plane of the lateral through-hole onto the frame base.

Abstract: A laundry treating apparatus includes a drum and a lifter disposed on an inner circumferential surface of the drum and configured to rotate with the drum. The lifter includes a lifter frame installed on the inner circumferential surface of the drum and a frame cover coupled to the lifter frame. The lifter frame includes: a frame base coupled to the inner circumferential surface; a frame upper plate having a first water flow through-hole; and a frame sidewall that connects the frame upper plate to the frame base and that defines a second water flow through-hole. The frame cover includes: a cover upper plate having a water flow discharge hole configured to discharge, into the drum, washing water having passed through at least one of the first water flow through-hole or the second water flow through-hole; and a cover sidewall that extends from the cover upper plate to the frame base.

Abstract: A laundry treating apparatus includes: a drum configured to receive laundry and to rotate about a rotation axis that extends in a front-rear direction of the laundry treating apparatus; and a lifter disposed on an inner circumferential surface of the drum and configured to rotate about the rotation axis based on rotation of the drum. The lifter includes: a lifter upper plate portion spaced apart from the inner circumferential surface of the drum, a lifter sidewall portion that is made of metal and that extends from lifter upper plate portion toward the inner circumferential surface of the drum, and a side protrusion that protrudes from an outer surface of the lifter sidewall portion. The lifter sidewall portion has a lower end coupled to the inner circumferential surface of the drum and an upper end connected to the lifter upper plate portion.

Abstract: A laundry treating apparatus includes: a drum and a lifter that is disposed on an inner circumferential surface of the drum and that is configured to rotate with the drum. The lifter includes a lifter frame coupled to the drum and a frame cover that covers the lifter frame. The lifter frame includes: a frame base coupled to the inner circumferential surface of the drum; a frame upper plate spaced apart from the frame base in a direction toward an inside of the drum; a frame sidewall that connects the frame upper plate to the frame base; and a spacer that protrudes from the frame upper plate toward an inner surface of the frame cover and that allows the inner surface of the frame cover to be spaced apart from the frame upper plate.

Abstract: A laundry treating apparatus according to the present disclosure includes a drum having a mounting slot and being configured to receive laundry and rotate about a predetermined rotation axis extending in a front-rear direction, and a lifter disposed on an inner circumferential surface of the drum and extending in the front-rear direction. The lifter includes a lifter frame installed on the inner circumferential surface of the drum, and a frame cover coupled to the lifter frame and protruding radially inward from the inner circumferential surface of the drum. The lifter frame has a catching protrusion protruding from an inner surface of the lifter frame and having a shape that is symmetrical based on a center in a plan view.

Abstract: A laundry treating apparatus includes: a drum, a first lifter disposed on an inner circumferential surface of the drum, and a second lifter that is disposed on the inner circumferential surface of the drum at a position rearward of the first lifter. Each of the first lifter and the second lifter includes at least one insertion protrusion. The drum defines: a first group of one or more mounting slots in a first area of the drum; and a second group of one or more mounting slots in a second area of the drum. The second area is disposed rearward relative to the first area and overlaps with at least a portion of the first area of the drum, and the at least one insertion protrusion is configured to selectively insert into the one or more mounting slots in the first group or the second group.