CN2069861U - Weighing system for coal-blasting series tank of blast furnace - Google Patents
Weighing system for coal-blasting series tank of blast furnace Download PDFInfo
- Publication number
- CN2069861U CN2069861U CN 89220326 CN89220326U CN2069861U CN 2069861 U CN2069861 U CN 2069861U CN 89220326 CN89220326 CN 89220326 CN 89220326 U CN89220326 U CN 89220326U CN 2069861 U CN2069861 U CN 2069861U
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- coal
- weighing
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- weighing system
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Abstract
The utility model belongs to a weighing system for coal spraying series tanks of a blast furnace, in particular to an auxiliary apparatus for the coal spraying series tanks of a blast furnace, and is mainly suitable for a coal powder weighing system for the coal powder spraying series tanks of a blast furnace. At least two sets of electronic balances are arranged on two tanks of series coal powder collecting tanks and on three tanks of series coal powder collecting tanks. And each set of the electronic balances is all connected with a computer. And counterweights are arranged in upper tanks. After input to the computer, each weighing signal is returned to each valve which controls the series tanks by storage, recording, printing, and treatment in the computer. The utility model has the advantages of accurate weighing, and continuous recording, and has the advantages that the weighing system can respectively carry out the weighing and the recording.
Description
The utility model belongs to the auxiliary facility of pulverized coal injection series can.Mainly be applicable to the coal dust Weighing system of pulverized coal injection in blast furnace series can.
Furnace coal spraying technology uses for many years in field of metallurgy.Existing two kinds of this coal powder injection technology, a kind of is two jars of series connections, another kind is three jars of series connection modes.No matter which kind of equipment all is equipped with electronic scales on following two jars, and the connecting mode of each jar all adopts soft connection and the control device of valve is separately arranged.Because must pressurising in jar two jars of when falling the coal, make jar with jar between softly connect hardening, so just produce a kind of between two jars, thrust up and down, make by coal dust weighing numeration in the weighing jar not accurate enoughly, especially can not obtain the consecutive weighings meter record of every jar of coal dust.
The utility model proposes and a kind ofly can overcome inaccurate and the pulverized coal injection jar Weighing system that can not consecutive weighings of the coal dust weighing that brings because of soft connection.This system can be accurately, the total amount of control continuously, weighing and every jar of coal dust amount of record and coal dust.
Solution of the present utility model can be with reference to the accompanying drawings 1., and 2. accompanying drawing is described in detail as follows.Coal-storage pot in the accompanying drawings, 1; 2, valve; 3, the soft connection of corrugated tube; 4, valve; 5, winding-up jar; 6, valve; 7, mixing tank; 8, on the electronic weighing scale E; 9, under the electronic weighing scale E; 10, counterweight; 11, CRT shows; 12, keyboard; 13, printer; 14, electronic scale E upper sensor; 15, electronic weighing scale E lower sensor; 16, pressure unit; 17, A/D interface; 18, CPU central display unit; 19, I/O interface; 20, valve 2 monitoring; 21, valve 4 monitoring.
Solution of the present utility model is that mass 10 is housed on coal-storage pot 1, makes coal-storage pot 1 be subjected to the thrust of corrugated tube 3 with balance because of soft connection back pressurising.Overcome because of the shown negative value of electronic scales after the pressurising that is flexible coupling 8, make electronic scales 8 in whole winding-up process, all show on the occasion of.When the independent weighing of winding-up jars 5, alleged value is winding-up jar 5 interior coal dust weight under the electronic scales 9E.Winding-up jar tare weight amount is given first deduction to zero the time at electronic scales.The weight that should be coal dust in the coal-storage pot 1 of 8 weighings of electronic scales on coal-storage pot 1, and the thrust that pressurising produced of coal-storage pot tare weight, counterweight 10 and the soft connection 3 of corrugated tube is in the definite value input computer.Accompanying drawing 1 is the structural representation of pulverized coal injection jar.Accompanying drawing 2 is the computer control structural representation.11 is that CRT shows in accompanying drawing 2, the 12nd, and computer keyboard, the 13rd, the printer of computer.Electronic scales 8E goes up and transmitter 14 links in the coal powder injection jar, electronic scales 9E links with transmitter 15 down, and corrugated tube is soft to connect 3 output signals and pressure unit 16 links, signal is input to processing in the CPU central display unit 18 through A/D interface 17, the signal after will handling again passes through monitoring 20 by-pass valve controls 2 and monitoring 21 by-pass valve controls 4 respectively by I/O interface 19.Its working routine is before preparing after coal-storage pot 1 pressurising to unload coal toward winding-up jars 5, two electronic scales 8E can be gone up, by computer the weighing value be synthesized under the 9E.After two jars of UNICOMs from coal-storage pot 1 when winding-up jars 5 is unloaded coal, because of having after soft connection 3 pressurisings of corrugated tube to last thrust and downward pressure, after so machine is handled as calculated, remove the pressure of jar heavy, counterweight and inflation after, just can in the tank switching process, obtain in two jars the weight of coal dust separately.After coal dust is discharged into the valve 4 of closing winding-up jars 5 after the winding-up jars 5 in coal-storage pot 1, just can make coal-storage pot 1 diffuse normal pressure, pressure is just no longer born in soft connection, this moment by computer-controlled two electronic scales 8E go up, 9E will distinguish the coal dust weight in the weighing separately jar down.Weighing result is seen accompanying drawing 3.Upward for being the weighing curve of electronic scales 9 under electronic scales 8 and the E, Q is an actual coal dust quantitative change curve in the winding-up jar to E in the accompanying drawing 3.
According to above-mentioned pulverized coal injection in blast furnace weighing device, can be used for the Weighing system of two jars of soft connections of series connection, also go for the Weighing system of three jars of soft connections of tandem.
This pulverized coal injection in blast furnace Weighing system has weighing accurate, can continuous recording, also can two platform balances weighing and record respectively.
Claims (2)
1, a kind of Weighing system of pulverized coal injection in blast furnace jar, this Weighing system is that electronic scales all is housed on two jars, the weighing value of electronic scales all inputs in the computer carries out record, store, control the switch of each valve after the processing more respectively, it is characterized in that each position of series can and connecting of computer are that electronic scales 8E goes up and transmitter 14 links, electronic scales 9E descends and transmitter 15 links, soft connection 3 output signals connect with pressure unit 16, through A/D interface 17 each signal is input to processing in the CPU central display unit 18, the signal after will handling again passes through monitoring 20 by-pass valve controls 2 and monitoring 21 by-pass valve controls 4 respectively by I/O interface 19.
2, Weighing system according to claim 1 is characterized in that mass 10 is housed on the coal-storage pot 1, make electronic scales 8 in the weighing process, all show on the occasion of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220326 CN2069861U (en) | 1989-12-05 | 1989-12-05 | Weighing system for coal-blasting series tank of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220326 CN2069861U (en) | 1989-12-05 | 1989-12-05 | Weighing system for coal-blasting series tank of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2069861U true CN2069861U (en) | 1991-01-23 |
Family
ID=4875027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220326 Withdrawn CN2069861U (en) | 1989-12-05 | 1989-12-05 | Weighing system for coal-blasting series tank of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2069861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021259A (en) * | 2009-09-23 | 2011-04-20 | 余姚太平洋称重工程有限公司 | Pressure correction electronic scale for furnace top burdening system of blast furnace |
| CN101469355B (en) * | 2007-12-28 | 2012-12-12 | 鞍钢集团自动化公司 | Bellless furnace top pressure compensation weighing method for blast furnace |
-
1989
- 1989-12-05 CN CN 89220326 patent/CN2069861U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469355B (en) * | 2007-12-28 | 2012-12-12 | 鞍钢集团自动化公司 | Bellless furnace top pressure compensation weighing method for blast furnace |
| CN102021259A (en) * | 2009-09-23 | 2011-04-20 | 余姚太平洋称重工程有限公司 | Pressure correction electronic scale for furnace top burdening system of blast furnace |
| CN102021259B (en) * | 2009-09-23 | 2013-02-20 | 余姚太平洋称重工程有限公司 | Pressure correction electronic scale for furnace top burdening system of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |