JPS59198214A - Overall monitor controller for load and speed of diving typescraper conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention. The present invention relates to a submersible conveyor conveyor for scraping and conveying ash accumulated in a container, and in particular to a device that automatically adjusts the speed of the drag chain of such a conveyor as a function of the ash accumulated thereon.

A submersible bottom ash scraping conveyor is used to continuously remove ash from a water-filled trough placed below the furnace. The reason why this submersible scraping conveyor is operated continuously is that the capacity of the water-filled trough is large enough to pass through the bottom of the furnace. This is because it is smaller compared to a hopper filled with regular water. The water that falls from the furnace is cooled by water and sinks to the bottom of the trough. The drag chain of the 7-change water scraping conveyor has rows of stages between one parallel chain, and these rows scrape along the bottom of the water-filled trough and sink to the bottom. The ash is carried up the conveyor to the dewatering ramp at the end of the day.

At the top of the dewatering ramp, the drag chain goes around a sprocket, reverses, and dumps the carried ash into an emitter. This drag chain returns to the opposite end of the scraping conveyor through a chamber beneath a water-filled trough. The drag chain loops around the rollers, reversing direction and carrying the ash through the water-filled trough and onto the dewatering ramp, repeating the cycle.

The submersible scraping conveyor's transmission fluid 1-mo drive unit is
The head shaft is rotated at the top of the dewatering ramp where the tiers and chain rotate around the sprocket and reverse direction. The running speed of the drag chain and the rows of the submersible scraping conveyor is S. per minute. S meters (Cog feet) up to 3 meters (10 feet) per minute, typical speed
It is smaller to reduce wear and tear and power consumption. The speed of the drag chain of the submersible scraping conveyor can be adjusted, but is produced by manually selecting a suitable speed and setting the speed unit to the selected speed. This .1 constant speed must be fast enough to remove the bottom ash that would occur under the worst-case conditions expected until it is next reset. Each stage removes a varying amount of ash depending on the rate of ash generation. Even when not transporting ash, this submersible scraping conveyor 14 is horizontal during operation, causing the Wakamizu scraping conveyor to operate at unnecessary speeds that cause unnecessary wear and tear. Don't let it happen.

For this reason, automatic speed control of the submersible scraping conveyor is essential. One object of the invention is to sense the required ash removal capacity of a submersible scraper conveyor.

An object of the present invention is to provide an automatic speed control device for a submersible scraper conveyor that adjusts the speed of the conveyor's drag chain in response to the ash removal ability of the cutter. Jikin Speed Liao Control System #1d Senses the head shaft torque and adjusts the conveyor drag chain speed to %4? Adjust the head shaft torque to the design value. By maintaining the torque applied to the head shaft at the design value, a balance between the bottoming removal ability of the water-registered scraping conveyor and the rate at which bottoming occurs is ensured. In this way, the drag chain of the submersible scraping conveyor has the self'=flJ7. Ifl City]
] The collapse gives rise to the bottoming removal ability of the calyx for all furnace-growing conditions.

SUMMARY OF THE INVENTION The present invention overcomes the disadvantages of manual setting of the proper speed in the prior art by eliminating manual setting of the speed of a submersible scraping conveyor. According to the present invention, the head shaft is changed to one direction, so that the water droplet or one of the liquid moving device driving the drag chain of the water-type scraping conveyor directs the hydraulic pressure and the torque applied to the head shaft. monitor as a thing.

A signal proportional to water pressure or citrus is generated and used to adjust the speed of the submersible scraping conveyor as a number of rJ of the amount of ash currently being removed from the water-filled trough. Adjust the liquid ball electric speed to maintain the designed torque applied to the head shaft, thereby matching the ash removal speed to the bottoming-out speed, and at the same time extending the life of the drag chain, stage row, sprocket and anti-corrosion iron plate. .

Variable speed adjusted in this manner reduces power consumption compared to speed \til control with manual settings. Car seat fee! i11 is operated at the minimum speed for the current operating conditions, thereby minimizing component damage.

Additionally, automatic speed control eliminates the need for the operator to select the speed at which the submersible scraping conveyor operates.

See attached diagram. The automatic speed control system for a submersible bottom scraping conveyor in accordance with the present invention is best illustrated in FIG. The submersible scraping conveyor 10 is a device for continuously removing bottoming from the furnace.

Submersible scraping conveyor/θ is the furnace in the upper trough/2 (
(not shown). This ash is an overflow/upper trough in the water level bowl on the left/water filled to λ/
It is cooled by q. The water in the upper trough/λ serves as a barrier between the furnace and the surroundings, and the furnace can be operated with any type of fuel other than hot water. Once the ash collects at the bottom of the upper trough, remove the ash.

Drag chain/Otsu 1 is a long parallel chain between 5. +ll/ff is set and fixed. 1-Rack chain/B is the idler sprocket, 20, follower sprocket 2λ, and as it catches the reversing roller U+, scrape along the lower surface of the throw row/grd upper trough/-, and remove the precipitated ash from the dewatering slope λB. Transport with a sword. When the ashes are carried down the dewatering slope 2, the water is drained and the water returns to the upper trough 7.2.

The angle l of the dewatering slope 2 will vary depending on the shape and space available. The angle of the dewatering slope is 2S0 with respect to the horizontal
and +50, and in terms of shout type, ? It's midnight. When the stage row /g reverses direction and passes through the follower suge rocket 22 at the top of the dewatering skoog 2, the ash carried there is discharged to the discharge section. The drag chain returns through the dry lower trough core and through the lower idler sprocket to the reversing roller 2, completing the cycle.

A tick-up adjuster 3θ is provided on the reversing roller λ to maintain the tension of the drag chain/A.

Chain lri as a result of water in the interlinks
Since it stretches, this tick-up adjuster 30 is necessary.

The minimum storage volume of ash in the submersible scraping conveyor 10 is the upper trough/2 storage volume, and the conveyor operates continuously during furnace operation. In this way, the submersible, culling conveyor removes the ash at the same rate as the ash removal rate. When the submersible scraping conveyor 10 is operated by applying a design torque to the head shaft λ/, each stage removes the same amount of ash and the drag chain balances the amount of ash being produced. has the lowest speed.

Fig. 2 shows an example of speed control of a submersible scraping conveyor. The variable speed drive 3.lambda. directly or indirectly drives the head shaft 2/ on which the sprocket 2.2 is mounted. In a preferred example, the variable speed drive device 32 is a hydraulic motor. As shown in the figure, the speed change KIX@ device 3λ, the head shaft β/and the sprocket 22 rotate clockwise.

1,000 kadran juicer 3g monitors -t5 F:E or Yuzu, and g compared to the torque on the head shaft λl expressed by water pressure or oil pressure! Generates a standard process sound damping signal for 11 seconds. The polka dot or Iri oil field may be controlled at the inlet to the variable speed drive 3λ, or may be monitored as an outlet between the variable speed drive 3 and the output using hydraulic or oil field signals. to adjust the speed of the variable speed drive 32, and then reduce the speed of the drag chain/B to 1.
to settle down.

The rice field or oil field signal generated by the water drop juicer 3 is added by an adder 36 to the water droplet or yuzu 1-iE set value. This water drop or oil field setting value: d corresponds to the design torque applied to the head shaft 21. Adder 36 generates an error signal as the difference between the tension signal generated by pressure quadrature juicer 3 and the water pressure or oil pressure set point.

The error signal generated by the adder 36 is an input signal to the controller 3g. In this preferred embodiment, the controller 3g1d, which is a proportional plus integral controller, operates with the error signal and generates a control signal as an output signal based on the monitored operating l/l yoke to adjust the output of the Narita bong lO. .

The liquid ball pump 0 receives the control signal generated by the controller 3g, and adjusts the speed of the variable speed drive device 3 by changing the local flow rate of water or citron. The water or oil is sent from the liquid pump θ to the variable speed drive device 3.2 of the first flow. The flow (heat) returns the water or oil to several thousand bongs q0. The liquid drop pump l10 returns to a predetermined maximum speed of approximately S, S meters (7 g feet) per minute as a function of torque on the head shaft, 2/X Adjust the speed of the drag chain /6.In this way, the bottoming automatic speed seat charge cape device adjusts the speed of the variable speed drive 3-, the speed of the head shaft, 2/6, the speed of the sprocket 2-, and the speed of the drag chain 2-. Chain/6
The speed of the head shaft 2/ is adjusted as a function of the torque applied to the head shaft 2/.

The filling area between one stage/g is designed to be packed to about Asotr at the design torque of the head shaft, 2/g. The water scraping conveyor 10 is attached to the head shaft 2/'? X
The amount of ash in the filling area between g is increased by Iri, the drag chain/I- is increased, and the head shaft 2/is increased.
increasing the torque applied to the engine and thereby increasing the water pressure or oil field. An increase in the rice fields or oil fields monitored by the Thousand Cadran Juicer 3Q indicates that the heavenly production rate has increased and therefore the 1* degree of the drug chain/otsu should be increased. This water pressure or oil pressure represents the design torque on the head shaft.
I] Since it is larger than the set value of ITE, the force [1 calculator 36
generates an error signal. Controller, 3g IrJ
-7IQ 1i The device is activated by the error signal generated and increases the speed at which the liquid pump xi-o normally feeds water or oil.The three variable speed drive devices are constant variable speed motors. Changing the flow rate of water or oil to the variable speed drive 3.2 changes the speed 1 of the variable speed drive 3 accordingly.

An increase in the torque of the head shaft, 2/l/i, causes an increase in the speed of the variable speed drive, an increase in the speed of the headshaft, and an increase in the speed of the drag chain. As the speed of the drag chain increases, the amount of ash between the λ stages decreases,
(Since the speed of the drag chain/O is adapted to the production speed of 1 ash), the head shaft 4/2 approaches the design value of 65% filling while maintaining the design torque.

The same thing happens in the opposite order as the bottom output rate decreases. As the output rate of bottoming decreases, the filling area between one bag becomes smaller than the design value of 65% filling, which reduces the tension of the drag chain/6 and increases the head shirt toco/ni. Reduce torque and thereby reduce water pressure or oil pressure. Dried Kadran Juicer 3g is 'MR'
The reduction in fluid beads or wells indicates that the filling area between λ stages/g is less than the design value, therefore reducing the speed of the drag chain/6 to reduce the bottoming production rate. Adapt the ash removal rate to

By adjusting the speed of the automatic speed control device TRI-shift I@Kinso #3 and maintaining the designed torque of the head shaft, the drag is adapted to the current speed discharge that is bottoming out. Chain/6 speed is the lowest. In this manner, the automatic speed control system reduces power losses compared to hand-set speed control systems. The automatic speed control system also maintains ash removal capability and allows for low speed operation, thereby minimizing wear and tear on components and at the same time extending the life of the drag chain.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of the 1ri submersible scraping conveyor. Figure 1 is a circuit diagram of the Wakamizu-type whisper qR reconveyor drive/I'll light j system. 10. Wakamizu type scraping conveyor, /,! ...Himan trough, /4...Water, is-.Overflow/6...Drag chain, 1g...Stage row or I stage, 20...Idler sprocket, 2/...Head shaft, 2.2-・
"Follow Suf" rocket, 2g... Reversing roller, λ6...
・Etsusui slope 5.27・・Lower trough, 2g・・Idler sprocket, 32−・Speed change wA @ device, 3ri・・・
Tamakadran G 1--1-. ．． 76...711] calculator, 3 gΦ controller, /IO... hydraulic ponder. Fkyo e, I Fgo, 2

Claims (5)

[Claims] (1) Liquid mole whose speed changes depending on the supply flow rate of water or oil
# Speed r of a submersible scraping conveyor that breaks the drag chain with the head shaft driven by the Awl device
In a device for controlling the speed of a hydraulic drive device and therefore the speed of a drag chain, a hydraulic pump having a pump and an outlet, a hydraulic pump having a pump and an outlet; Means for passing water or oil from the outlet of the liquid pump to the inlet of the hydraulic drive; Means for passing water or oil from the outlet of the hydraulic drive to the inlet of the liquid drop pump; Means for measuring the pressure of the water or oil; and the speed of the drag chain of a submersible spot-taking conveyor characterized in that it is provided with a means for controlling the supply to the hydraulic drive by a hydraulic pump as a function of this measured rice field or oil field. Device. (2) Controlling the speed of the drag chain according to claim 1, wherein the child actor who measures the water pressure or the water IE is a child actor who measures the water IE or oil field, which is also suitable for the population equipped with a child drive drive. device to do. (3) A device for controlling the speed of a drag chain according to claim 1, wherein the water droplet or hydraulic pressure measuring device is a means for measuring the width pressure from the inlet to the outlet of the hydraulic drive device. . (4) The control means has a first input terminal for receiving the measured water droplet or oil rlE, a first input terminal for receiving the predetermined water pressure or oil field setting value, and an output terminal for giving a proportional A signal. y141 with
1, a sub-actor for comparing a fixed water pressure or oil field with a predetermined set point, and means for controlling the supply of water or yuzu to the device by the hydraulic pump as a function of the compared signals; Apparatus for controlling the speed of a drag chain according to claim I (1). (5) A device for controlling the speed of a drag chain according to claim 1, wherein the control means is a proportional glass integral controller. 16) Liquid r: Speed f 1 of the drag chain according to claim 1, wherein the E drive device is a hydraulic motor.
ffll groaning device.