| Document |
Document Title |
|
JPH11510464A |
(57) [Summary] The present invention has a conical tubular body (6) having an inlet nozzle (9) and an outlet nozzle (10) and installed on a structural base (7), and a threaded axle (11) housed in the tubular body (6). ) For the type of h...
|
|
JPH11217785A |
To provide a method and apparatus for improving dispersion of solution in introducing a diluent into the lower part of a cellulose pulp boiler. In a pulp treating tank such as a kraft pulp vertical type continuous boiler, cellulose slurr...
|
|
JP2896812B2 |
A walled passageway, having openings therein only at opposite, inlet and outlet ends thereof, has a shaft journalled therein. The shaft carries a screw thereon for moving shredded pulp through the passageway. The screw is foreshortened, ...
|
|
JPH11140784A |
To save labor and improve efficiency in washing of an apparatus for boiling under pressure. In washing of apparatus for boiling under pressure, when a preheated screw 6 or the interior of the body 2 of a boiling can 1 is kept in high-tem...
|
|
JPH11131381A |
To obtain a corrosion inhibitor effective for inhibiting the corrosion of a digester and a black liquor concentration vessel in a process for producing a kraft pulp, and further to provided a method for inhibiting the corrosion by using ...
|
|
JP2889703B2 |
In a continuous digester system the chip feed equipment is greatly simplified by substituting a single vertical vessel for the conventional chip bin, steaming vessel and chip chute. An outlet at the bottom of the single vessel is connect...
|
|
JPH11100786A |
To provide an apparatus, a system and a method for simply and efficiently separating a heavier fraction of floating foreign substances in the system for feeding finely crushed cellulosic fiber material, for example, in a feeding system f...
|
|
JP2835825B2 |
To provide a device for preventing the clogging of a screen in a digester, capable of preventing that raw material chips, pulp and scales transferred to the opening holes of the screen are adhered to the screen to clog the opening holes ...
|
|
JPH10509483A |
PCT No. PCT/SE95/01257 Sec. 371 Date Apr. 17, 1997 Sec. 102(e) Date Apr. 17, 1997 PCT Filed Oct. 24, 1995 PCT Pub. No. WO96/15316 PCT Pub. Date May 23, 1996The reactor comprises a pressurized vessel having an outlet member at its top and...
|
|
JP2792724B2 |
A process for the comminution, in particular defibrillation, and reaction of fibrous materials having a high dry solids content with the addition of a circulating medium, preferably a carrier gas and/or reaction agent, as well as optiona...
|
|
JP2793331B2 |
A method and apparatus provide for the continuous digestion of comminuted cellulosic fibrous material (e.g. wood chips) to produce paper pulp, with increased sulfidity. When black liquor is withdrawn from the continuous digester (32), in...
|
|
JP2783040B2 |
PURPOSE: To provide the device and method for automatically controlling the pressing-in or pulling-out of the rotor of a high pressure feeder. CONSTITUTION: A rotor position detector 7 is attached to a high pressure feeder 1. A signal (i...
|
|
JPH10506441A |
A method and apparatus for the continuous production of cellulosic pulp for use in a papermaking process. The apparatus includes a vessel containing a pulping liquor and the vessel consists of a first impregnation zone and a second attri...
|
|
JPH10158986A |
To provide a process and an apparatus that can process cellulosic materials in any volume in a single equipment in the production of chemical cellulose. This process is for continuously treating finely crashed cellulosic fiber material u...
|
|
JP2748790B2 |
PURPOSE: To provide the method for computing a raw material-retaining time, especially for displaying the position of a raw materials switching site. CONSTITUTION: The continuous digester comprises one or more zones. The volume Vi of eac...
|
|
JP2748791B2 |
PURPOSE: To provide the method for computing the retention time of a raw material in a pulp continuously digestion tank when a kind of raw material is switched with a different kind of raw material. CONSTITUTION: The flow volume and conc...
|
|
JPH09229867A |
To provide a method and an apparatus for inspecting a pulp liquor whereby impurities in the pulp liquor can be detected accurately. In the pulp liquor-inspecting method for detecting impurities in a pulp liquor running in a path piped be...
|
|
JPH09217481A |
To ensure safety and reduce cost by assembling and floating a float working platform on a liquid filled in a columnar tower container and making an inspection and maintenance of an inner wall while adjusting a water level. A float 34 is ...
|
|
JPH09132891A |
To provide a method for controlling the supply of steam in a cooking device, capable of treating and cooking a raw material well while effectively utilizing the steam by controlling the flow rate of the steam in accordance with the weigh...
|
|
JPH0921088A |
To efficiently utilize an acidic effluent from bleaching facility in a cellulose pulp plant utilizing a digesting method using sodium as a base without polluting a process of a pulp plant with inpreferable metal ion. An effluent from ble...
|
|
JP2549677B2 |
In a method and an apparatus for mixing chemicals into a fibre pulp, the pulp passes in a space between a fixed casing and a rotating device through three treatment sections. In the first treatment section a transport screw is arranged f...
|
|
JP2542256B2 |
In the continuous cooking of comminuted cellulosic fibrous material (e.g. wood chips) to produce paper pulp, the material is subjected to a minimum of mechanical action, especially under high temperature and pressure conditions, so as to...
|
|
JPH08508551A |
Chemical pulp is produced from hardwood chips in a simplified manner utilizing a continuous digester. An inverted top separator is provided in the circulatory loop between the high pressure feeder and the top of the continuous digester f...
|
|
JPH08507335A |
A method to control a manufacturing process for cellulose, pulp or similar by measuring the bulk density of the chips supplied to the process. A representative volume of the supplied chips are sampled and supplied to a measuring method, ...
|
|
JP2501269Y2 |
|
|
JPH08504483A |
A conventional continuous digester is modified so as to provide a countercurrent cook throughout the entire height of the digester. Instead of connecting an upper mid-point extraction screen to a flash tank, that screen is closed off and...
|
|
JPH08503029A |
In the production of cellulose pulp (e.g. kraft pulp) utilizing a continuous digester having a number of different feed points for cooking (e.g. white) liquor and utilizing a high pressure feeder, the volume of cool white liquor that is ...
|
|
JPH0816315B2 |
A cellulose pulp slurry is delignified in an apparatus comprising a vertical cylindrical barrel chamber, a cone-shaped bottom chamber connected to the barrel chamber and having a circular inlet formed in a lower end portion thereof, and ...
|
|
JPH08500854A |
(57) [Summary] Pulp bleaching and de-lignin filtrates are recycled and reused in pulping, separation, and recovery of lignin and other by-products, saving considerable energy and eliminating contamination typically associated with bleach...
|
|
JPH081035B2 |
The present invention relates to a method and apparatus for evaporating waste liquor produced when cooking fibrous material containing cellulose in a continuous pulp digester. In the continuous cooking process, fibrous material is heated...
|
|
JPH0745599Y2 |
|
|
JPH07268789A |
PURPOSE: To efficiently produce pulp good in quality from a herbaceous plant containing non-woody fibers as a raw material at a low cost. CONSTITUTION: This method for digesting non-woody fibers has a preliminary digestion process A comp...
|
|
JPH0792438B2 |
PURPOSE:To improve the precision in inspection of a pulp solution flowing with extraneous matters contained in a paper manufacturing process. CONSTITUTION:An inspecting tube 10 is connected between two cylindrical tubes 1 through which a...
|
|
JPH0732509Y2 |
|
|
JPH07171368A |
PURPOSE: To provide a completely continuous flow type agitator which can intensively and uniformly agitate highly viscous material requiring strong torque. CONSTITUTION: A vertical U-shaped agitator main body 10 is composed of an A tank ...
|
|
JPH07157991A |
PURPOSE: To provide the method and system therefor designed to uniformize the radial flow from the center of the cooking liquor in a steam cooker toward the inner peripheral wall and thus uniformize the quality of the resultant pulp. CON...
|
|
JPH0718798Y2 |
|
|
JPH0723592B2 |
An apparatus and method for use in a batch digesting process to quantitatively displace fluids in the digester by pumping into the digester under pressure a first volume of displacing fluid at the upper end and a second volume of displac...
|
|
JPH0718108B2 |
A process and apparatus for transforming and/or extracting lignin or its decomposition products from lignin-cellulosic materials. For this purpose, a redox potential in the 200-500 mV range is set by adding oxidizing and/or reducing agen...
|
|
JPH07500903A |
PCT No. PCT/SE92/00694 Sec. 371 Date May 6, 1994 Sec. 102(e) Date May 6, 1994 PCT Filed Oct. 5, 1992 PCT Pub. No. WO93/09391 PCT Pub. Date May 13, 1993.Apparatus is disclosed for heating cellulosic pulp in a pipe including fittings mount...
|
|
JPH0674557B2 |
An apparatus and method for treating cellulosic wood chips in a digestion process for the liberation of pulp in a caustic hydroxide solution at high pressures and temperatures by delivering preconditioned wood chips to a first chamber (1...
|
|
JPH0672383B2 |
|
|
JPH06257087A |
PURPOSE: To efficiently digest pulp chips by replacing air with steam in a steaming vessel installed on the way for supplying chips to a digester while transferring the chips to the digester and increasing or decreasing the amount fed of...
|
|
JPH06257080A |
PURPOSE: To produce a high quality pulp in high efficiency at a reduced cost by using herbaceous plant as a raw material. CONSTITUTION: The method consists of a preliminary digesting process A wherein a digesting reagent solution is spra...
|
|
JPH06166979A |
PURPOSE: To obtain the system processing uniformly cellulosic pulp and being able to eliminate plugging while discharging pulp by equipping a conical distributor at the bottom end of a vertical reactor and providing a means withdrawing c...
|
|
JPH0643673B2 |
|
|
JPH0641675B2 |
|
|
JPH0639755B2 |
|
|
JPH06136678A |
PURPOSE: To control cooking state of chip to a prescribed value by adjusting a control valve for steam amount based on a target value of temperature distribution of total kettle, operated from a target production amount of pulp and tempe...
|
|
JPH0633961B2 |
In a falling film exchanger, a screen arrangement for preventing solid particles in the liquid to be heated from plugging liquid distribution outlets of a perforated liquid distributing tray or reaching the heating surface of the heat ex...
|
