CN203096092U - Blast furnace belt feeding control system - Google Patents
Blast furnace belt feeding control system Download PDFInfo
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- CN203096092U CN203096092U CN 201320048738 CN201320048738U CN203096092U CN 203096092 U CN203096092 U CN 203096092U CN 201320048738 CN201320048738 CN 201320048738 CN 201320048738 U CN201320048738 U CN 201320048738U CN 203096092 U CN203096092 U CN 203096092U
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- blast furnace
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Abstract
The utility model relates to a blast furnace belt feeding control system, and belongs to the technical field of control systems. The blast furnace belt feeding control system comprises a feeding PLC (Programmable Logic Controller), wherein the feeding PLC is composed of a central processor, an input module and an output module, the central processor is connected with a counter unit, the counter unit comprises an add counter and a subtract counter, the counter unit is used for sending data information to an analyzing and judging unit through a comparing and processing unit, the analyzing and judging unit is used for transmitting an information command to the central processor, and the central processor is used for sending a command through the output module. The blast furnace belt feeding control system provided by the utility model calculates the total feeding time through the add counter and the subtract counter and controls whether feeding coke or ore according to the total feeding time, thereby being simple, pellucid and rigorous in control logic. Feeding and discharging systems of a groove stably and reliably operate and generate no phenomenon of repeated feeding, lagging behind stockline, losing stockline, and the like, so that the control system is worthy of being applied and popularized on different types of blast furnaces.
Description
Technical field
The utility model relates to blast furnace charge hoisting by belt conveyer Controlling System, belongs to the Controlling System technical field.
Background technology
Newly-built two 1080m of safe steel
3The blast furnace furnace roof adopts the string jar of PW company not have the bell furnace roof, and feeding system adopts the charge hoisting by belt conveyer mode under the groove.It is a continuous uninterrupted dynamic process that charging of blast furnace is crossed range request, and main belt is changeing always, and ore storage bin and coke bin carry out blowing according to the blowing pointer, one batch of material is arranged all the time in operation on the main belt, could guarantee the material loading requirement like this, be unlikely to stockline thanks to, influence blast furnace operating.Last batch can and blanking tank require that also a batch of material is arranged all the time, so just can keep dynamically balance.For keeping this kind running balance, key is sending of ore drawing or put-focus instruction, sends ore drawing or put-focus instruction prematurely, and the furnace roof action does not also finish, and furnace charge has arrived furnace roof, and this can cause main belt stop off phenomenon.Send ore drawing or put-focus instruction the day after the fair, material loading speed is unable to catch up with, and can cause the phenomenon of stockline thanks to.Sending of suitable ore drawing or put-focus instruction is the key of sequential control.All adopt the method for enumerating under the situation mostly, according to whether there being material to determine whether sending ore drawing or put-focus instruction on last batch can, blanking tank and the belt, though this method is simple, but these three kinds of conditions combine more loaded down with trivial details, the how bad judgement of chain condition, wayward, not to send out to such an extent that be exactly to send out lately excessively too early, sometimes can't send the blowing instruction signal, cause can't material loading situation.In addition, when keeping this kind running balance, also to satisfy and just begin the requirement that puts into operation, all there is not material on this moment on batch can, blanking tank and the main belt, there is very big difference in condition when condition and running balance, condition during again by dynamic balance is sent the blowing instruction, heavy burder can occur putting, the accident that main belt stops.Selecting suitable control sequential, is 1080m
3The key of charging of blast furnace.
Summary of the invention
The purpose of this utility model is to solve the weak point that above-mentioned prior art exists, and the blast furnace charge hoisting by belt conveyer Controlling System that a kind of failure rate is low, stable, be easily understood is provided.
The utility model is achieved through the following technical solutions:
Blast furnace charge hoisting by belt conveyer Controlling System, its special character is to comprise material loading PLC, material loading PLC is made up of central processing unit, load module and output module, central processing unit is connected with counter unit, counter unit comprises and adds counter and down counter, counter unit sends to the analysis and judgement unit by the comparison process unit with data message, and the analysis and judgement unit is transferred to central processing unit with information command, and central processing unit sends instruction by output module.
Blast furnace charge hoisting by belt conveyer Controlling System of the present utility model, with traditional method of enumerating, whether there are material, blanking tank whether to have whether to have on material, the belt material and whether just put-focus or judge that in multiple conditions such as ore drawings whether put-focus groove or ore drawing in ore deposit compare by last batch can, the difference of essence is arranged, the employing of this Controlling System adds, down counter calculates the blowing total degree, according to blowing total degree control put-focus or ore drawing whether, simple, understandable, steering logic is tight.By the application of flexible exploitation counter in blast furnace charge hoisting by belt conveyer control process, both satisfied material loading requirement and control sequential, kept the running balance of material loading again well.Feeding system is stable, reliable under the groove, the repetition blowing did not take place, is unable to catch up with stockline, loses phenomenons such as stockline, and this Controlling System is worth using for reference on blast furnace of the same type to be promoted.
Description of drawings
Fig. 1: blast furnace charge hoisting by belt conveyer Controlling System block diagram of the present utility model.
Embodiment
Provide embodiment of the present utility model below with reference to accompanying drawing, be used for formation of the present utility model is described in further detail.
The blast furnace charge hoisting by belt conveyer Controlling System of present embodiment, comprise material loading PLC, material loading PLC is made up of central processing unit, load module and output module, central processing unit is connected with counter unit, counter unit comprises and adds counter and down counter, counter unit sends to the analysis and judgement unit by the comparison process unit with data message, and the analysis and judgement unit is transferred to central processing unit with information command, and central processing unit sends instruction by output module.
When sending ore drawing or put-focus signal, with adding counter, use down counter when the batch can blowing reaches signal, total blowing number of times be controlled between 0～2 when sending, when the blowing total degree less than 1 the time, according to the blowing pointer, direct put-focus or ore drawing; When the blowing total degree equals 1, and last batch of material is when arriving furnace roof (whether time-delay is covered and judged whether to arrive furnace roof by the material tail), according to the put-focus or ore drawing of blowing pointer judgement.So just, can realize charging belt well and go up batch can is two batch of materials all the time.When blanking tank is empty, open upper sealing valve and material loading lock, the material in the last batch can is put in the blanking tank, down counter subtracts 1, and total blowing number of times equals 1 or 0, is put-focus or ore drawing according to the blowing condition judgment again.
Processing step:
(1), with add, down counter calculates the blowing total degree, the counting condition is at ore drawing or put-focus state.
With adding counter, the blowing total degree adds 1 when the signal edge of ore drawing state or put-focus state is come; Use down counter when last batch can blowing reaches, the blowing total degree subtracts 1.Calculate total blowing number of times by these two counters.
(2), when signal fault and program are made mistakes, the blowing total degree may be less than 0 or greater than 2 sometimes, will limit the blowing total degree this moment, makes it between 0～2 scope, the more put-focus or ore drawing according to the blowing pointer.
(3), the blowing total degree calculates and to finish, according to blowing total degree and the put-focus or ore drawing of blowing pointer control.
Can be divided into three kinds of situations according to the blowing total degree:
1) when the blowing total degree less than 1 the time, direct put-focus or ore drawing when the blowing pointer is chosen Jiao or chosen the ore deposit;
2) whether equal 1 when the blowing total degree, and last batch of material is when arriving furnace roof, delaying time to cover by the material tail judges whether to arrive furnace roof, put-focus or ore drawing when the blowing pointer is chosen Jiao or chosen the ore deposit;
3) when the blowing total degree equals 0, stop blowing, put-focus again or ore drawing when satisfying preceding two kinds of conditions by the time.
The unspecified content of the utility model is prior art, and those skilled in the art can obtain to inspire from present embodiment and prior art, is out of shape to obtain other embodiment.Therefore, protection domain of the present utility model should be determined according to the protection domain of claim.
Claims (1)
1. blast furnace charge hoisting by belt conveyer Controlling System, it is characterized in that comprising material loading PLC, material loading PLC is made up of central processing unit, load module and output module, central processing unit is connected with counter unit, counter unit comprises and adds counter and down counter, counter unit sends to the analysis and judgement unit by the comparison process unit with data message, and the analysis and judgement unit is transferred to central processing unit with information command, and central processing unit sends instruction by output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048738 CN203096092U (en) | 2013-01-21 | 2013-01-21 | Blast furnace belt feeding control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048738 CN203096092U (en) | 2013-01-21 | 2013-01-21 | Blast furnace belt feeding control system |
Publications (1)
| Publication Number | Publication Date |
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| CN203096092U true CN203096092U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048738 Expired - Fee Related CN203096092U (en) | 2013-01-21 | 2013-01-21 | Blast furnace belt feeding control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203096092U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107475469A (en) * | 2017-07-10 | 2017-12-15 | 首钢京唐钢铁联合有限责任公司 | Method for preventing heavy burden of blast furnace top charging bucket |
| CN107574275A (en) * | 2017-09-15 | 2018-01-12 | 首钢京唐钢铁联合有限责任公司 | Method and device for preventing heavy burden of blast furnace top charging bucket |
| CN110578025A (en) * | 2019-06-04 | 2019-12-17 | 湖北工业大学 | Optimization design method for length of main belt of blast furnace |
-
2013
- 2013-01-21 CN CN 201320048738 patent/CN203096092U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107475469A (en) * | 2017-07-10 | 2017-12-15 | 首钢京唐钢铁联合有限责任公司 | Method for preventing heavy burden of blast furnace top charging bucket |
| CN107574275A (en) * | 2017-09-15 | 2018-01-12 | 首钢京唐钢铁联合有限责任公司 | Method and device for preventing heavy burden of blast furnace top charging bucket |
| CN107574275B (en) * | 2017-09-15 | 2019-07-02 | 首钢京唐钢铁联合有限责任公司 | Method and device for preventing heavy burden of blast furnace top charging bucket |
| CN110578025A (en) * | 2019-06-04 | 2019-12-17 | 湖北工业大学 | Optimization design method for length of main belt of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20190121 |