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JP2579984B2 |
A method and apparatus for pulverizing a material such as sand to a desired particle size. The apparatus has a pulverizing shell in which the material to be pulverized is fed and pulverized. The pulverized fluid-carried material overflow...
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JPH0938512A |
To prevent the quick supply of residual coal into a powdered coal boiler by setting the temporary air flow rate to the residual coal-purge-start time-set flow rate smaller than the lowest air flow rate when a vertical mill is started in ...
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JPH0938518A |
To keep the quality of a grain sized product in the good and suitable state and improve the crushing efficiency of raw material lumps by carrying out the grain sizing of the raw material lumps by the fuzzy control method in a grain sizin...
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JPH0929130A |
To stop a vertical mill just after purging of residual coal of the vertical mill is completed even when the kind of coal is changed. Mill differential pressure P is detected, and that the mill differential pressure P becomes a fixed on-c...
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JPH0929117A |
To exhibit excellent responsiveness even in the case that the flow rate of a product is difficult to detect in online mode. A feeder command signal 3, that is the supply quantity of a raw material to be pulverized, is corrected so as to ...
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JPH0924291A |
To compose a system by which the optimum operation of a process to pulverize powders and classify the resultant powder into a plurality of levels is carried out by producing production yield and a partial classification ratio model based...
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JP2570057B2 |
PURPOSE: To stabilize the operating condition of a jaw crusher by detecting the variation in an outlet clearance accompanying the wear of a moving tooth and a fixed tooth, automatically calculating the necessary quantity of movement to t...
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JP2569150B2 |
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JP2569149B2 |
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JP2559222B2 |
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JPH08299821A |
PURPOSE: To enhance the rate of operation of a crushing plant by eliminating the blocking or bridge state at a supply port while continuing the crushing operation of a raw ore. CONSTITUTION: The raw ore level at the supply port 4d of a j...
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JPH08299832A |
PURPOSE: To make garbage, etc., even safely by a process in which a hand is not put into a crushing part during crushing, garbage, etc., are prevented from scattering during crushing, and garbage, etc., are not touched by hands. CONSTITU...
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JPH08276138A |
PURPOSE: To make a load on a breaking/grinding machine constant, prevent a voltage flicker from occurring and increase the breaking/grinding efficiency. CONSTITUTION: A material to be broken is fed into a breaking/ grinding machine by a ...
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JP2545001B2 |
PCT No. PCT/DE90/00348 Sec. 371 Date Dec. 13, 1991 Sec. 102(e) Date Dec. 13, 1991 PCT Filed May 14, 1990 PCT Pub. No. WO90/15665 PCT Pub. Date Dec. 27, 1990.To improve the process control in a method and a corresponding device for regula...
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JPH08252476A |
PURPOSE: To keep coal delivery characteristics good even when the kind of coal is changed. CONSTITUTION: A coal supply command signal 13 is inputted into a function generator 14 to be converted into a base signal 16 of a classifier revol...
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JPH08254309A |
PURPOSE: To prevent a sudden increase of SOx at the side of a boiler during stopping the operation of a pulverized coal mill. CONSTITUTION: The changing characteristics of SOx concentration at the inlet port of a desulfurizing device 14 ...
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JPH08243429A |
PURPOSE: To bring coal output amount close to target value even when a kind of coal is changed by performing new dynamic characteristic evaluation prior to change of an output command and obtaining a correction signal of output amount in...
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JPH08238435A |
PURPOSE: To effectively reduce self-exciting vibration which occurs in grinding by calculating the characteristic frequency and the rate of change of the frequency of a grinding part and controlling the resistance value of a flow resista...
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JPH08224489A |
PURPOSE: To provide a roller type pulverizer capable of restraining self-excited vibration and operating it silently by noticing vibration characteristics of the pivot parts and improving the structure. CONSTITUTION: Rigidities of the pi...
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JP2528729B2 |
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JPH08215600A |
PURPOSE: To enable the optimum operation of a mill in spite of a change in the hardness and moisture content of coal by controlling the number of revolutions of a classifying machine in such a manner that the total running cost of the su...
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JP2524289B2 |
PURPOSE: To provide the pressurizing force of a required roller corresponding to the thickness of a coal layer for respective ranges of load, secure the crushing performance of a mill and prevent the instability of control of pressurizin...
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JP2525107B2 |
PURPOSE: To provide the method for controlling the grain size distribution of a crushing machine by which crushed materials having always the stable grain size distribution are obtd. CONSTITUTION: The effect characteristics that the adju...
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JPH08196935A |
PURPOSE: To monitor securely the residual coal discharge state in a coal crusher and judge securely the completion of residual coal discharge by providing a means of comparing the vibration value of a coal crusher in the process of disch...
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JP2516214B2 |
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JPH08179826A |
PURPOSE: To provide the stop factor diagnosing method for machine with which the real factor of emergency stop can be easily diagnosed. CONSTITUTION: When the operating state data of a roller mill 10 are continuously fetched through a se...
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JPH08173835A |
PURPOSE: To precisely control a fineness modulus irrespective of skillfulness of persons engaged in operation, and also to quickly adjust the fineness modulus and to effectively produce crushed sand having a fineness modulus required by ...
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JPH08164341A |
PURPOSE: To safely crush rolling stones without allowing an operator to enter a dangerous zone by confirming the position of the rolling stones with a camera and operating a working vehicle while viewing the videos of the camera at a rem...
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JPH08140380A |
PURPOSE: To eliminate maintenance of brushs and a secondary resistance starter by making a switch to reactor start upon elapse of a preset time after starting a squirrel-cage induction motor with full voltage when a decision is made that...
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JP2500818B2 |
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JP2500126B2 |
PURPOSE: To provide a crushing device capable of supplying preliminarily crushed product which is roughly crushed using a single upright roller mill for preliminary crushing to tube mills and crushing the roughly crushed product finely a...
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JPH08112538A |
PURPOSE: To make the life of the mill roller longer and electric power consumption less by executing rolling down of a mill roller by a fluid pressure cylinder. CONSTITUTION: This method for controlling the rolling force of the mill roll...
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JPH08108082A |
PURPOSE: To provide a crusher by which the fineness of the produced powder at the outlet of a housing is made almost constant even when the materials having different crushability are crushed, a soft material is not overcrushed, and the ...
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JPH0832309B2 |
The invention proposes a novel automatic product feed in which an analog signal is formed and at least one other digital signal which is adjustable independently of the analog signal is generated and used for the automatic product feed f...
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JPH0871442A |
PURPOSE: To improve throughput per unit time to a maximum value. CONSTITUTION: In a paper treating device, a gap roller 25 which is formed so that it can move in the 1st direction in which it approaches a capture roller 20 and in the 2nd...
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JPH089016B2 |
Materials such as cement clinker are crushed by utilizing a crushing apparatus including a vertical roller mill (21) provided with a rotatable table (34) and a plurality of rollers (38) and a distributing device (26) for distributing mat...
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JPH0824705A |
PURPOSE: To perform stable operation by making the mill outlet temp. setting the program control by a mill coal feed quantity command, lowering the mill outlet temp. setting to restrain the drying of pulverized coal by the temp. rise in ...
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JPH08206B2 |
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JPH07328464A |
PURPOSE: To restrain the occurrence of self-excited vibration in the case the vibration level of a pulverizing part consisting of a turntable and pulverizing rollers exceeds a prescribed threshold by repeating respective operations for i...
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JPH07328466A |
PURPOSE: To provide a mill, a method of controlling the feed quantity of a raw material for the same and a device therefor in which the mill is operated with the residual quantity of the raw material in the mill while normally maintainin...
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JPH07328465A |
PURPOSE: To provide an operation method in which uneven abrasion of the pulverizing surface of a table is prevented in a vertical roller mill. CONSTITUTION: The circumferential speed of a table 3a driven by a motor 1 and that of a roller...
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JPH07106325B2 |
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JPH07284687A |
PURPOSE: To surely maintain the load state of respective ball mills at an optimum state by checking the pulverizing material supply rate to the respective ball mills actually distributed by a distributor in accordance with the pulverizin...
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JPH07275726A |
PURPOSE: To keep the product grading at a value when a stroke plate is new until the stroke plate is replaced. CONSTITUTION: Of stroke plates of the same kind as those used, data for estimating abrasion loss showing the relationship betw...
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JPH0794019B2 |
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JPH07256139A |
PURPOSE: To reduce the crushing cost in a finishing stage by supplying a material to be crushed from the upstream side of a crusher, classifying the material into a material to be coarsely crushed and a material to be finely crushed, eva...
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JPH07251092A |
PURPOSE: To provide a crusher which can crush efficiently materials different in size and kind without exchanging a rotor shaft and a rotor blade. CONSTITUTION: In this crusher equipped with at least two rotor shafts 2, 3 and rotor blade...
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JPH0784336B2 |
PURPOSE:To stabilize the quality of the products with labor saving by effecting the measurement of water content in the starting granulated slag continuously and automatically. CONSTITUTION:The granulated slag is weighed with the feed co...
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JPH07213936A |
PURPOSE: To prevent coal outputting characteristics from becoming worse by increasing the amt. of circulation in a mill caused by change in properties of a coal raw material. CONSTITUTION: When a standard coal is fed on a grinding table ...
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JPH07175515A |
PURPOSE: To securely detect an abnormal state even when an operation state stays low or high by detecting abnormality of the operation state of machine facilities by making a comparison with an abnormal reference value which is a specifi...
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