CN203256344U - Integrated type pickling unit - Google Patents
Integrated type pickling unit Download PDFInfo
- Publication number
- CN203256344U CN203256344U CN 201320208093 CN201320208093U CN203256344U CN 203256344 U CN203256344 U CN 203256344U CN 201320208093 CN201320208093 CN 201320208093 CN 201320208093 U CN201320208093 U CN 201320208093U CN 203256344 U CN203256344 U CN 203256344U
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- pickling
- tank
- dividing plate
- cell body
- acid solution
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Abstract
The utility model provides an integrated type pickling unit which comprises a tank body, squeezing rollers, a maintenance chamber, a circulation pump and a heater, wherein the tank body is internally divided by a partition plate into an upper layer and a lower layer; the upper layer of the tank body forms a pickling tank through the partition plate; an acid liquor recovery tank is positioned below the partition plate; at least two squeezing rollers are horizontally placed on one end of the partition plate top and bottom, and the position between the two squeezing rollers is not lower than the end part of the partition plate; the bottom of a pickling tank is communicated with the acid liquor recovery tank; the circulation pump is communicated with the acid liquor recovery tank or the maintenance chamber is connected with the heater; the output pipeline of the heater is communicated with the pickling tank; the maintenance chamber is communicated with the acid liquor recovery tank; the maintenance chamber and the pickling tank are provided with detachable sealing upper covers; the maintenance chamber and the acid liquor recovery tank are also communicated with a liquid discharge pipeline. The integrated type pickling unit provided by the utility model can carry out multi-concentration stepped pickling, thereby saving the pickling liquor cost and ensuring the pickling quality; the integrated type pickling unit provided by the utility model reduces the occupied area and basic construction workload of equipment, thereby reducing the production cost and being favorable to maintenance.
Description
Technical field
The utility model relates to the iron and steel process field, particularly integrated form pickling unit.
Background technology
The metals such as iron and steel need to carry out pre-treatment when using, and wherein, for removing the oxide skin of metallic surface, need the pretreatment process that iron and steel is carried out pickling.
In the acid cleaning process, for improving pickling effect, accelerating reaction efficiency and Reaction time shorten, need pickle solution is carried out heat treated.Existing pickling installation, mainly comprise pickling tank and acid solution withdrawing can, pickle solution can be fully discharged into the acid solution withdrawing can when realizing that pickling tank is emptying, pickling tank and pickle solution withdrawing can will have certain altitude poor, therefore pickling tank is located on the basis, the acid solution withdrawing can will be placed in the trench of below ground of pickling tank basis one side so that it is lower than the pickling tank bottom land, connects via pipeline between the two.The pickle solution that iron and steel is crossed in pickling flow to the acid solution pond for recovering at action of gravitation, and the pickle solution in the acid solution pond for recovering backflows to pickling tank through heating under the effect of pump, or sprays the steel surface to the groove or iron and steel is infiltrated in pickle solution, finishes acid cleaning process.But there is following problem in above-mentioned pickling installation.
1, pickling tank and acid solution withdrawing can divide side by side and are arranged, and floor space is excessive, and cost of floor space drops into too high, are unsuitable for the social reality of present an inch of land is an inch of gold.
2, pickling tank is arranged on the basis, and the acid solution withdrawing can is located in the trench, and the infrastructure project amount is larger, long construction period, and cost is high.
3, the pickling tank that sets up separately and acid solution withdrawing can cause the long complexity of pipeline laying between them, have increased the occurrence probability of pipe safety accident.
4, because pickling tank generally is comprised of multistage, every section several acid solution withdrawing cans of correspondence cause acid solution withdrawing can checking maintenance trouble.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide integrated form pickling unit, and the floor space of saving integral device reduces, and reduces the capital construction work amount and is easy to maintenance repair.
The utility model is achieved through the following technical solutions:
Integrated form pickling unit comprises inner cell body, squeezing roller, maintenance chamber, recycle pump and the well heater that is divided into upper strata and lower floor by dividing plate; Described dividing plate makes the cell body upper strata consist of pickling tank, and the dividing plate below is the acid solution accumulator tank; Described dividing plate two ends upwarp, and the part that upwarps at dividing plate one end is provided with the overflow breach at least; Described squeezing roller is for being at least two, and the position that is placed horizontally at one on the other between dividing plate one end and two rollers is not less than the dividing plate end; Described pickling tank bottommost and acid solution accumulator tank are by being with valvular pipeline conducting; Recycle pump and acid solution accumulator tank or maintenance chamber conducting, and be connected the output channel of well heater and pickling tank conducting with well heater; Described maintenance chamber is positioned at cell body one side and is communicated with the acid solution accumulator tank of lower floor, and the top of maintenance chamber and upper strata pickling tank is provided with removable sealing loam cake, described maintenance chamber or acid solution accumulator tank also with the Drainage pipe conducting.
Above-mentioned integrated form pickling unit, described cell body is the multistage tandem array, and the upper strata pickling tank of adjacent cell body connects, and lower floor's acid solution accumulator tank is separated by vertical plate washer.Fill the pickle solution of different concns in the different sections, described pickle solution concentration axially increases successively along cell body.
Above-mentioned integrated form pickling unit, the Drainage pipe of every section correspondence of described cell body connected by valve and communicating pipe, when being used for maintenance the discharging spent acid solution, can also be used for acid solution by the high section of concentration to the low section balance of concentration, to change new acid solution.
Above-mentioned integrated form pickling unit, the output channel of described well heater pass respectively pickling tank the two side and with upper strata pickling tank conducting.
Above-mentioned integrated form pickling unit, described cell body is made by polypropylene material, also is provided with acidproof building stones on the bottom surface of described upper strata pickling tank.
Above-mentioned integrated form pickling unit, described cell body is welded into by stainless steel plate or common carbon steel board, and the surface coverage acid-resisting rubber of described upper strata pickling tank and lower floor's acid solution accumulator tank also is provided with acidproof building stones at the acid-resisting rubber skin on the bottom surface on described pickling tank upper strata.
Described dividing plate two ends upwarp part has one section horizontal section in top, play the guiding role that steel plate is steadily imported to squeezing roller.
Above-mentioned integrated form pickling unit, described dividing plate upper surface reduces to pickling tank axis physical features gradually from both sides of the edge; Described dividing plate is used for bed hedgehopping steel to be washed near also being provided with the bed hedgehopping platform that is higher than the minimum absolute altitude of dividing plate upper surface on the surface that upwarps part, guarantees that the bottom surface of steel to be washed also can obtain the cleaning of pickle solution.
Above-mentioned integrated form pickling unit, the sidewall of described upper strata pickling tank shrinks to the overflow breach near the part of overflow breach; Sideslip when guaranteeing that steel to be washed enter squeezing roller and affect and extract effect.
Above-mentioned integrated form pickling unit covers on the described pickling tank acid mist extraction pipeline also is installed.
The beneficial effects of the utility model are:
1, pickling tank is become two-layer up and down by baffle for separating, and described dividing plate two ends upwarp and make the upper strata form pickling tank, and lower floor becomes the acid solution accumulator tank; Pickling tank and acid solution accumulator tank are integrated, both saved floor space, saved again the construction of basic construction and acid solution pond for recovering, greatly reduce production cost;
2, acid solution pond for recovering and pickling tank so arrange, acid solution directly overflows to lower floor's acid solution accumulator tank by the upper strata pickling tank by the overflow breach on the dividing plate, do not need overflow line, simultaneously other pipelines with to lack than prior art many, simplified the acid solution transport pipeline laying of complexity in the prior art, both saved cost, having reduced again pipeline is the safety problem that acid liquid corrosion etc. causes.
3, adopt the acid solution accumulator tank to compare with the acid solution withdrawing can, simple in structure, particularly dividing plate namely is that the pickling tank bottom land is again the groove top of acid solution accumulator tank, and whole steel using amount is few, and cost is low.
4, because acid liquor temperature is higher, and the acid solution accumulator tank communicates up and down with pickling tank, and the acid mist of acid solution accumulator tank upwards enters pickling tank, only need to acid mist extraction pipeline be set at the pickling tank loam cake to get final product, and has reduced acid mist and has processed pipeline and equipment.
Description of drawings
Fig. 1 is trough body structure synoptic diagram of the present utility model.
Fig. 2 is cell body structure synoptic diagram of the present utility model.
Fig. 3 is cell body cross-sectional view of the present utility model.
In the above-mentioned accompanying drawing, 1, cell body; 2, squeezing roller; 3, maintenance chamber; 4, recycle pump; 5, well heater; 6, Drainage pipe; 7, acid mist extracts pipeline; 8, vertical baffle; 11, pickling tank; 12, acid solution accumulator tank; 13, dividing plate; 14, pipeline; 131, overflow breach; 132, horizontal section; 133, bed hedgehopping platform.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the utility model discloses a kind of integrated form pickling unit, comprise inner cell body 1, squeezing roller 2, maintenance chamber 3, recycle pump 4 and the well heater 5 that is divided into upper strata and lower floor by dividing plate 13; Dividing plate 13 makes the cell body upper strata consist of pickling tank 11, and dividing plate 13 belows are that acid solution accumulator tank 12(is referring to Fig. 3).Recycle pump 4 is with acid solution accumulator tank 12 or overhaul chamber 3 conductings, and is connected the output channel of well heater 5 and pickling tank 11 conductings with well heater 5; Pickle solution in the acid solution accumulator tank 12 is under the driving of recycle pump 4, heated by well heater 5, pickle solution after the heating enters pickling tank 11 through the output channel of well heater 5, steel to be washed are sprayed or the pickling process of soak type, so guaranteed that just the temperature of pickle solution is relatively stable, both improve working efficiency, guaranteed again the effect of pickling.Maintenance chamber 3 is positioned at cell body one side and is communicated with acid solution accumulator tank 12.The top of maintenance chamber 3 and pickling tank 11 is provided with removable sealing loam cake, covers on the pickling tank 11 acid mist extraction pipeline 7 also is installed.Maintenance chamber 3 or acid solution accumulator tank 12 also with Drainage pipe 6 conductings.The easy access personnel that arrange of maintenance chamber 3 enter acid solution accumulator tank 12 by maintenance chamber 3 it are overhauled.Because the stronger hydrochloric acid of volatility is generally adopted in pickling, and can effectively reducing hydrochloric acid, loam cake evaporates in the air to external world environment, acid mist extracts 7 in pipeline and is used for the sour gas of pickling tank 11 inside is extracted the collection recycling, can reduce cost on the one hand, also reduced on the other hand the corrosion of sour gas for unit equipment, reduce accident rate, the extension device life-span.
The output channel of well heater 5 pass respectively pickling tank 1 the two side and with pickling tank 11 conductings (as shown in Figure 1 and Figure 2); Pickle solution is evenly added by the both sides of pickling tank 11, prevents the unbalanced pickling effect that affects of acid solution.
As shown in Figure 3, dividing plate 13 two ends upwarp, and the part that upwarps at dividing plate 13 1 ends forms overflow breach 131 at least; So dividing plate 13 two ends upwarp, and make dividing plate 13 middle parts be easy to accumulate pickle solution, are convenient to carry out the pickling oxide film dissolving in the steel immersion pickle solution to be washed; Being provided with of overflow breach 131 is beneficial to the pickle solution that guarantees in the pickling tank 11 and flows into lower floor's acid solution accumulator tank, guarantee in the pickling tank 11 pickle solution can because of accumulate too much cause the factors such as pickling temperature are impacted reduce pickling effect.Dividing plate 13 two ends upwarp part has one section horizontal section 132 in top, play the guiding role that steel to be washed are steadily imported to squeezing roller 2.Dividing plate 13 upper surfaces reduce to pickling tank 11 axis physical features gradually from both sides of the edge; On the one hand be convenient to steel to be washed and move to pickling tank 11 axial direction dues, sideslip when avoiding steel to enter squeezing roller 2; Bottom surface for steel to be washed provides pickle solution on the other hand.Dividing plate 13 is near also being provided with the bed hedgehopping platform 133 that is higher than the minimum absolute altitude of dividing plate upper surface on the surface that upwarps part; Bed hedgehopping platform 133 cooperates steel bed hedgehopping to be washed from both sides of the edge with dividing plate 13 to the upper surface that pickling tank 11 axis physical features reduce gradually, the bottom surface that guarantees steel to be washed also obtains invading profit and cleaning of pickling, can obtain preferably pickling effect.
As shown in Figure 3, squeezing roller 2 is at least two, the position that is placed horizontally at one on the other between dividing plate 13 1 ends and two rollers is not less than dividing plate 13 ends, guarantees that steel to be washed steadily enter squeezing roller 2. pickling tanks, 11 bottommosts and acid solution accumulator tank 12 by being with valvular pipeline 14 conductings; So, when the pickle solution temperature in the pickling tank 11 is inadequate, can under the control of valve, flow into acid solution accumulator tank 12, again recycle after to be heated.
Cell body 1 is welded into by stainless steel plate or common carbon steel board, and the surface coverage acid-resisting rubber of pickling tank 11 prevents pickle solution for the corrosion on pickling tank 11 surfaces, extension device work-ing life; Also be provided with acidproof building stones (for example grouan) at the acid-resisting rubber skin on the bottom surface on pickling tank 11 upper stratas.Frictional force is less between acidproof building stones and the steel, guarantees that steel can be smooth and easy by pickling tank 11 under less dynamic action.Be protection against corrosion, the stainless steel surface of lower floor's acid solution accumulator tank 12 also covers acid-resisting rubber.In addition, use acrylic plastering to replace the technical scheme of the askew covering acid-resisting rubber of steel plate also can reach preferably effect.
Described cell body 1 is the multistage tandem array, and the upper strata pickling tank 11 of adjacent cell body 1 connects, and lower floor's acid solution accumulator tank 12 is separated (as shown in Figure 3) by vertical plate washer 8; Fill the pickle solution of different concns in the different sections, pickle solution concentration axially increases successively along cell body.The Drainage pipe 6 of every section cell body 1 correspondence is by connecting valve (not shown) and communicating pipe.When pickling process carried out, steel to be washed by the low cell body 11 of pickle solution concentration, carried out preliminary treatment first in the pickle solution of lower concentration, most of impurity and oxide film are removed; Steel after the lower concentration pickle solution is processed are extracted by squeezing roller 2, and the cell body 11 that then enters the pickle solution higher concentration is deepened processing, remove obstinate oxide film; The pickle solution that squeezing roller 2 is extruded falls into acid solution accumulator tank 12 corresponding to respective concentration pickle solution along corresponding breach.In the present embodiment, the concentration of pickle solution is divided into 4 different concns from high to low successively, and steel carry out four pickling successively, has guaranteed again pickling effect by lower concentration to the pickling mode of high density in the pickle solution that practices every conceivable frugality.
Through the pickling of certain number of times, do not reach requirement because sneaking into the rising of impurity and pH value in the acid cleaning process in the pickle solution, and need to change.Wherein the foreign matter content in the pickle solution changes successively by pickle solution concentration sequence, and the pickle solution foreign matter content of high density is low, and the pickle solution foreign matter content of lower concentration is high; And most of impurity is contained in the pickle solution of minimum concentration.Thereby be used as the lower concentration pickle solution after the high concentrated acid washing lotion that foreign matter content is the relatively less dilution and use and can not exert an influence to pickling effect.
The replacing pickle solution process of present embodiment is as follows: the valve of control Drainage pipe and the valve of each conducting place: at first that the pickle solution of minimum concentration is emptying; Then adjust the valve of Drainage pipe, time lower concentration pickle solution is partly flowed in the acid solution accumulator tank 12 of pickle solution of minimum concentration; Valve-off makes cell body relative closure corresponding to minimum concentration pickle solution.The cell body that by-pass valve control is corresponding with the pickle solution of inferior lower concentration is emptying; Then adjust the valve of Drainage pipe, time lower concentration pickle solution is partly flowed in the acid solution accumulator tank 12 of pickle solution of time lower concentration; Valve-off makes time cell body relative closure corresponding to lower concentration pickle solution.Press the aforesaid operations mode successively to each cell body operation.When adding pickle solution at last, because there being the part pickle solution in the part cell body, so add full dose except the pickle solution of maximum concentration, the pickle solution that the pickle solution of all the other concentration only need add partial response concentration is equipped with suitable quantity of water again and gets final product.
Description according to present embodiment, the beneficial effects of the utility model have following some: 1, with acid solution retrieving arrangement and the integrated setting of pickling tank, both save floor space, saved again the construction of basic construction and acid solution pond for recovering, greatly reduced production cost; 2, acid solution pond for recovering and pickling tank so arrange, and have simplified acid solution transport pipeline complicated in the prior art and have laid, both saved cost, have reduced again pipeline and be the safety problem that acid liquid corrosion etc. causes; 3, acid mist extracts pipeline and extracts sour gas in the pickling tank, reduces sour gas to the corrosion of unit, and increase unit work-ing life: 4, pickle solution concentration has been saved the pickle solution consumption from low paramount acid pickling step when guaranteeing pickling effect; 5, use as the lower concentration pickle solution after the dilution of the high concentrated acid washing lotion of low impurity content, further save the pickle solution consumption, reduced production cost.
Above-described embodiment only is for illustrating that clearly the utility model creates example, and is not the restriction of the utility model being created embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, need not also can't give all embodiments exhaustive here.And the apparent variation of being amplified out thus or change still are among the protection domain of the utility model creation claim.
Claims (10)
1. integrated form pickling unit is characterized in that, comprises inner cell body, squeezing roller, maintenance chamber, recycle pump and the well heater that is divided into upper strata and lower floor by dividing plate; Described dividing plate makes the cell body upper strata consist of pickling tank, and the dividing plate below is the acid solution accumulator tank; Described dividing plate two ends upwarp, and the part that upwarps at dividing plate one end is provided with the overflow breach at least; Described squeezing roller is at least two, and the position that is placed horizontally at one on the other between dividing plate one end and two rollers is not less than the dividing plate end; Described pickling tank bottommost and acid solution accumulator tank are by being with valvular pipeline conducting; Recycle pump and acid solution accumulator tank or maintenance chamber conducting, and be connected the output channel of well heater and pickling tank conducting with well heater; Described maintenance chamber is positioned at cell body one side and is communicated with the acid solution accumulator tank of lower floor, and the top of maintenance chamber and upper strata pickling tank is provided with removable sealing loam cake, described maintenance chamber or acid solution accumulator tank also with the Drainage pipe conducting.
2. integrated form pickling unit according to claim 1 is characterized in that, described cell body is the multistage tandem array, and the upper strata pickling tank of adjacent cell body connects, and lower floor's acid solution accumulator tank is separated by vertical plate washer; Fill the pickle solution of different concns in the different sections, described pickle solution concentration axially increases successively along cell body.
3. integrated form pickling unit according to claim 2 is characterized in that, the Drainage pipe of every section correspondence of described cell body is by connecting valve and communicating pipe.
4. integrated form pickling unit according to claim 3 is characterized in that described cell body is made by polypropylene material, also is provided with acidproof building stones on the bottom surface of described upper strata pickling tank.
5. integrated form pickling unit according to claim 3, it is characterized in that, described cell body is welded into by stainless steel plate or common carbon steel board, the surface coverage acid-resisting rubber of described upper strata pickling tank and lower floor's acid solution accumulator tank also is provided with acidproof building stones at the acid-resisting rubber skin on the bottom surface on described pickling tank upper strata.
6. integrated form pickling unit according to claim 3 is characterized in that, described dividing plate two ends upwarp part has one section horizontal section in top, play the guiding role that steel plate is steadily imported to squeezing roller.
7. integrated form pickling unit according to claim 3 is characterized in that, described dividing plate upper surface reduces to pickling tank axis physical features gradually from both sides of the edge; Described dividing plate is near also being provided with the bed hedgehopping platform that is higher than the minimum absolute altitude of dividing plate upper surface on the surface that upwarps part.
8. integrated form pickling unit according to claim 7 is characterized in that, the sidewall of described upper strata pickling tank shrinks to the overflow breach near the part of overflow breach; Sideslip when guaranteeing that steel to be washed enter squeezing roller and affect and extract effect.
9. arbitrary described integrated form pickling unit is characterized in that according to claim 1-8, the output channel of described well heater pass respectively pickling tank the two side and with upper strata pickling tank conducting.
10. arbitrary described integrated form pickling unit is characterized in that according to claim 1-8, covers on the described pickling tank acid mist extraction pipeline also is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208093 CN203256344U (en) | 2013-04-23 | 2013-04-23 | Integrated type pickling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320208093 CN203256344U (en) | 2013-04-23 | 2013-04-23 | Integrated type pickling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203256344U true CN203256344U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320208093 Withdrawn - After Issue CN203256344U (en) | 2013-04-23 | 2013-04-23 | Integrated type pickling unit |
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| CN (1) | CN203256344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215608A (en) * | 2013-04-23 | 2013-07-24 | 北京全有时代科技股份有限公司 | Integrated-type acid-washing unit |
-
2013
- 2013-04-23 CN CN 201320208093 patent/CN203256344U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215608A (en) * | 2013-04-23 | 2013-07-24 | 北京全有时代科技股份有限公司 | Integrated-type acid-washing unit |
| CN103215608B (en) * | 2013-04-23 | 2015-02-18 | 北京全有时代科技股份有限公司 | Integrated-type acid-washing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131030 Effective date of abandoning: 20150218 |
|
| RGAV | Abandon patent right to avoid regrant |