Abstract: A blower 31 has a blower fan 35, a fan motor 36 for driving the blower fan 35 into rotation, and a shaft 52 having one end portion coupled to the blower fan 35 and the other end portion coupled to the fan motor 36. Washing liquid fed into the water tank during washing process or rinsing process is intruded inside the fan case 34, and the one end portion of the shaft 52 is immersed in the washing liquid.

Abstract: A substrate treating apparatus includes a treating unit for treating substrates, a piping for supplying a treating liquid to the treating unit, a heater mounted on the piping, an electronic thermal unit mounted on the piping in series with the heater, a temperature sensor for measuring a temperature of the treating liquid, and a controller for controlling the heater and the electronic thermal unit. The controller sets a first temperature control mode for performing a room temperature control using the electronic thermal unit when the temperature measured by the temperature sensor is below a predetermined boundary temperature between room temperature and high temperature, and for performing a high temperature control with the heater when the temperature measured by the temperature sensor is above the predetermined boundary temperature between room temperature and high temperature.

Abstract: A modular lint collection system for a fabric dryer, comprising a lint collection frame having a plurality of lint screen retaining members associated therewith, and a plurality of lint collection screens connected to respective lint screen retaining members and arranged in a zigzag pattern. The lint collection screens are oriented in respective vertical planes with adjacent screens lying in intersecting relation to one another, such that the air flow being drawn through the dryer generally impinges the screens at an oblique angle.

Abstract: A substrate treating apparatus includes a treating unit for treating substrates, a piping for supplying a treating liquid to the treating unit, a heater mounted on the piping, an electronic thermal unit mounted on the piping in series with the heater, a temperature sensor for measuring a temperature of the treating liquid, and a controller for controlling the heater and the electronic thermal unit. The controller sets a first temperature control mode for performing a room temperature control using the electronic thermal unit when the temperature measured by the temperature sensor is below a predetermined boundary temperature between room temperature and high temperature, and for performing a high temperature control with the heater when the temperature measured by the temperature sensor is above the predetermined boundary temperature between room temperature and high temperature.

Abstract: A method and plant for heat treatment of lime sludge (CaCO.sub.3) formed by the causticizing process during the manufacture of paper pulp. The lime sludge is dried and pulverized in a first process stage and preheated in a second process stage by means of hot exhaust gas coming from a kiln. In order to ensure that the temperature in the second process stage does not exceed a predetermined temperature lying within the range from 400.degree.-600.degree. C., the relationship between the amount of energy available in the exhaust gas for preheating in the second process stage and the amount of accumulated energy in the material which is to be preheated is regulated.

Abstract: The invention relates to a hot air oven for the preparation of foodstuffs, with a housing with four housing side walls, a bottom and a housing cover, with a cooking chamber delimited by four side walls 4 as well as a bottom 2 and a ceiling 3, with a first blower 6 for generating a hot air flow in the cooking chamber, with a rotatable basket 5 for the foodstuffs, which can be inserted into the cooking chamber, wherein the hot air stream flows through the basket 5 during oven operation, with a control device for the course of the cooking progress, wherein the control device includes a temperature control, and with at least one incoming air conduit and at least one air outlet conduit 6, wherein at least one separation device 10 serving to separate out particles conveyed in the hot air flow is provided.

Abstract: A material drying system includes a pulse combustor having a combustion chamber and an elongate tailpipe forming a resonant system with the combustion chamber. The tailpipe has an inlet for material to be dried and an outlet through which the material is discharged in a pulsating gas stream when the combustor is in operation. The tailpipe discharges into a vertical drying duct which leads to a cyclone separator. Part of the exhaust gas leaving the cyclone separator is recycled and used to cool the combustion chamber and tailpipe. Part of the dried material leaving the cyclone separator can be mixed with new incoming wet material to lower the overall moisture content of the material to be dried. The pulse combustor provides a substantial portion of the motive force required to operate the system.

Abstract: An apparatus for powder falling type gas-solid contacting operation which comprises a hopper for feeding solid particles, a fluidizing bunker wherein the fed particles are fluidized by introduction of a fluidizing gas, a standpipe provided between the hopper and the bunker for feeding the particles from the hopper to the bunker, the lower end of the standpipe being located in the bunker, and a vertical gas-solid column connected to the bottom of the bunker for bringing the particles falling down from the bunker into contact with a gas countercurrently, in which a vertical tube is provided in the bunker so as to surround at least the lower end part of the standpipe and extend to a position below the lower end of the standpipe, whereby the height of the fluidized bed of the particles in the bunker is stably kept constant and the particles are fed from the bunker to the gas-solid column at a constant rate.