IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0146677
(2002-05-15)
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발명자
/ 주소 |
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
9 |
초록
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Apparatus and process for producing a clay slurry from raw clay in a substantially dust-free manner including a water-driven vacuum eductor for metering the removal of clay from a super bag container and mixing the clay with a carrier water that also serves as the motive force for the eductor for pr
Apparatus and process for producing a clay slurry from raw clay in a substantially dust-free manner including a water-driven vacuum eductor for metering the removal of clay from a super bag container and mixing the clay with a carrier water that also serves as the motive force for the eductor for producing a clay slurry and feeding it to an equalization tank that de-aerates and equalizes the slurry. A bag shaker is provided in the source of clay to assist feeding where needed, and a vacuum breaking valve is provided for the eductor to control the flow of raw clay into the eductor. The bag of clay is suspended from a load cell that continuously delivers a weight signal to a programmable logic controller adjustable to set the rate of clay being fed to the eductor and to activate the bag shaker if the clay flow rate lags the set rate and the vacuum breaker if the clay flow rate exceeds the set rate.
대표청구항
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The invention claimed is: 1. Apparatus for producing a clay slurry from a super bag of raw clay in a substantially dust-free manner, comprising: a water-driven vacuum eductor having an inlet port adapted to be connected to a source of pressurized water, a suction port, and a discharge port, means f
The invention claimed is: 1. Apparatus for producing a clay slurry from a super bag of raw clay in a substantially dust-free manner, comprising: a water-driven vacuum eductor having an inlet port adapted to be connected to a source of pressurized water, a suction port, and a discharge port, means for breaking the suction at the suction port, a frame including a head supported by a plurality of legs sized so that the frame can support a super bag of raw clay such that its weight may be continuously monitored, said frame including a winch with a lifting device for lifting and suspending the super bag of clay, a load cell coaching with the winch and lifting device for continually monitoring the weight of the clay, a clay feed line connected to said suction port of the eductor and extending into the clay in the bag, a bag shaker in said clay, and a programmable logic controller for controlling the feed rate of the clay, said controller having an input for receiving a weight signal from said load cell, an output for controlling the means for breaking the suction, and an output for controlling the bag shaker, whereby the controller after being set controls the feed rate of the clay to the eductor at a substantially uniform feed rate to continuously provide said clay slurry to an end use point. 2. The apparatus of claim 1, wherein the legs of the frame are selectively removable to enhance the transportability of the frame. 3. The apparatus of claim 1, which further includes wheeled dolly jacks at the lower ends of the legs for selectively grounding the legs or lifting the legs to facilitate the mobility of the frame. 4. The apparatus of claim 1, wherein the frame is in the form of a tripod. 5. The apparatus of claim 1, wherein the winch is powered by a motor. 6. The apparatus of claim 1, wherein the frame is in the form of a tripod having selectively removable legs to enhance the transportability of the frame and wheeled dolly jacks for selectively placing the frame on wheels or grounding the frame for supporting a super bag. 7. The apparatus of claim 1, which further includes an equalization tank connected to the discharge port of the eductor for de-aerating and equalizing the flow of clay slurry. 8. The apparatus of claim 7, wherein the equalization tank is a pressure tank having a control valve for bleeding air. 9. The apparatus of claim 7, wherein the equalization tank is non-pressurized. 10. A process for substantially dustless handling of powdered raw clay in the production of a clay slurry comprising the steps of: supporting a super bag of clay so that the contents can be continuously weighed, continuously weighing the bag of clay producing a weight signal, sending the signal to a programmable logic controller, withdrawing clay from the bag under the power of a vacuum in a dust-free manner, delivering the clay to a water-driven vacuum eductor, feeding pressurized water to the eductor, mixing the water and clay in the eductor to form a clay slurry, continuously controlling the rate of raw clay fed to the eductor such that the raw clay is fed at a predetermined feed rate, discharging the slurry from the eductor, de-aerating the slurry, equalizing the slurry, and continuously feeding the slurry to a use site. 11. The process of claim 10, which further includes time incrementally weighing the clay in the bag to control the rate of feed, setting a feed rate at the controller, breaking the vacuum to the eductor in the event that the feed rate exceeds the set feed rate, applying a shaking action to the clay in the bag in the event the feed rate lags the set feed rate. 12. The process of continuously making and feeding a clay slurry in a substantially dust-free manner to an end use point for detoxifying water treated with an amine compound to control zebra mussels or the like which comprises the steps of: providing raw clay in a super bag, providing a water-driven vacuum eductor having an inlet port connected to a pressurized water supply that functions as motive power for the eductor and a carrier for the clay, a suction port connected to a line going into the clay, and a discharge port for discharging the clay slurry, providing means for breaking the vacuum at the suction port, controlling the rate of clay feed to the eductor by continuously measuring the weight of the clay in the bag, and operating the vacuum breaking means for adjusting the vacuum in the suction port, and de-aerating and equalizing the clay slurry. 13. The process of making a clay slurry in a substantially dust-free manner for detoxifying water treated with an amine compound to control zebra mussels or the like which comprises the steps of: providing raw clay in a super bag, moving a lifting device having an integral load cell over the bag, connecting the bag to the lift device, operating the lifting device to suspend the bag and activate the load cell, wherein the load cell produces a weight signal, producing vacuum power with a water-driven vacuum eductor by connecting the eductor to a pressurized water source, whereby the pressurized water provides a motive force for the eductor and a carrier for the clay, continuously removing clay from the bag to the eductor under the vacuum power of the eductor and mixing it with the water from the pressurized water source to form a clay slurry, providing a vacuum breaker on the eductor, providing a bag shaker in the clay to assist feeding of the clay to the eductor, feeding the clay slurry to an equalization tank, de-aerating and equalizing the clay slurry in the tank and delivering the slurry from the tank to a point of use, and controlling the rate of clay fed to the eductor with a programmable logic controller, wherein the controller includes or is connected to an alarm, feeding the weight signal to the controller, setting the controller to a desired clay feed rate, processing the weight signal in time increments, programming the controller to actuate the bag shaker if the feed rate lags the set rate for one time increment, to actuate the vacuum breaker if the feed rate exceeds the set rate, and to actuate the alarm if the feed rate lags the set rate for more than one time increment. 14. Apparatus for producing a clay slurry from a super bag of raw clay and a source of water in a substantially dust-free manner and delivering the slurry to a delivery line going to an end use point, comprising: a water-driven vacuum eductor for withdrawing clay from said super bag of raw clay and mixing the raw clay with water to produce said slurry, said eductor having an inlet port, a suction port, and a discharge port, means connecting said inlet port to a source of pressurized water, means connecting said suction port of the eductor to a clay feed line extending into the clay in the super bag, means connecting said discharge port to said delivery line, means for supporting said super bag of raw clay so that its weight can be continually monitored, weighing means coacting with said supporting means for continually monitoring the weight of the clay in said super bag and for substantially continually producing a weight signal, means for selectively breaking the suction at the suction port of said eductor for controlling the rate of feed of raw clay to said eductor to establish a predetermined feed rate, and a programmable logic controller for controlling operation of said suction breaking mean to establish the feed rate of the clay to said eductor, said controller having an input connected to said weighing means for receiving said weight signal reflecting the weight of raw clay in said super bag, means for setting a predetermined feed rate of raw clay, and an output for delivering a signal to said suction breaking means to maintain said predetermined feed rate of raw clay to said eductor, whereby the controller after being set for a predetermined feed rate functions to selectively trigger said suction breaking means and maintain the predetermined feed rate of raw clay to the eductor to continuously provide a slurry flow to said delivery line and end use point. 15. The apparatus of claim 14, which further includes means for agitating the clay in said super bag to promote withdrawal of clay therefrom. 16. The apparatus of claim 15, wherein said agitating means is selectively operated in response to said predetermined feed rate. 17. The apparatus of claim 16, wherein said agitating means is controlled by said programmable logic controller.
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