Weighing control method of coke under bunker of blast furnace without dispersing hopper
A control method and blast furnace tank technology, applied in the directions of weighing, blast furnace, blast furnace details, etc., can solve the problems of incomplete application and inapplicability of the weighing control method, and achieve the purpose of prolonging the service life, ensuring the weighing accuracy, and ensuring the accuracy. Effect
Active Publication Date: 2013-08-14
WISDRI ENG & RES INC LTD
View PDF1 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Under the new method, the shape of the coke weighing curve has been greatly changed, making the original weighing control method not fully applicable
[0003] figure 1 It shows the characteristic curve of coke weighing in the existing dispersion weighing. In order to ensure the accuracy of the coke weight in the centralized weighing hopper, the traditional method generally adopts the method of setting "full lead" to improve the weighing accuracy, that is, in Stop the feeder in advance when the weighing is about to reach the target value, and complete the weighing of the remaining mass through the inertial aftervibration of the equipment, but this method is no longer applicable under the new process of only centralized weighing
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] Such as figure 2 As shown, the embodiment of the present invention provides a control system for coke weighing under a blast furnace tank without a dispersion bucket, which includes a control unit, a frequency converter, a storage tank, a centralized weighing hopper, a speed sensor, a feeder, and a vibrating screen. The control unit sequentially controls the feeder, the vibrating screen and the coke belt to stop, thereby distributing the material stored in the storage tank to the centralized weighing hopper. The control unit can be implemented with DSP, ARM, FPGA or PLC. The centralized weighing hopper is equipped with limit switches and weight sensors. Among them, the limit switch includes two places, namely the open position and the closed position, which are connected to the control unit through ordinary cables. The limit switch can identify signals such as open end position, indefinite position (neither open end nor close end position), and close end position. The...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a weighing control method of coke under a bunker of a blast furnace without a dispersing hopper, comprising the following steps of: orderly controlling a feeder, a vibrating screen and a coke belt to stop so as to prepare ingredients for a centralized weighing hopper; based on the ingredients, controlling the centralized weighing hopper to discharge the ingredients. Based on the weighing control method of the coke under the bunker of the blast furnace without the dispersing hopper, provided by the invention, a double lead method is created based on an actual coke weighing curve formed when no dispersing hopper is available, so that weighing precision is ensured, materials are not accmmulated on feeding equipment and a feeding belt massively and the service life of the equipment is prolonged; a self-correcting method is created for factors, such as balance original value, lead and the like, affecting the weighing precision so as to furthest ensure the accuracy of single weighing and total feed mass.
Description
Technical field [0001] The invention relates to the technical field of blast furnace tank discharge control, in particular to a method for controlling coke weighing under a blast furnace tank without a dispersion bucket. Background technique [0002] In recent years, in order to save land and investment, the supply of blast furnace coke has canceled decentralized weighing, and only retained centralized weighing. Under the new method, the shape of the weighing curve of coke has been greatly changed, resulting in the incomplete application of the original weighing control method. [0003] figure 1 It shows the characteristic curve diagram of coke weighing in the existing dispersed weighing. In order to ensure the accuracy of the coke weight in the centralized weighing hopper, the traditional method generally adopts the method of setting "full advance" to improve the weighing accuracy. When the weighing is about to reach the target value, the feeder is stopped in advance, and the rem...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C21B5/00G01G13/30
Inventor 徐岸非李光荣
Owner WISDRI ENG & RES INC LTD