CN209367995U - Integrated decleaning tank - Google Patents

Abstract

It include regulatory region, zoneofoxidation, mixed zone, filtering area and readjustment area in tank body the utility model discloses integration removal of impurities can system.The decleaning tank can generate chlorine spot corrosion situation, therefore use glass steel material in view of containing a large amount of chloride ions in ammonium chloride waste-water.Regulatory region adjusts for three-level and with stirring, and online pH meter is arranged and controls adjusting；Zoneofoxidation setting stirring, and ORP is set, oxidization condition is monitored on-line；Mixed zone is arranged two-stage and stirs, and the precipitating reagent of addition be sufficiently mixed reacting with the metal ion in waste water, and add flocculant into area, guarantees that the small wadding body for forming precipitated metal is converted to compared with big flocculating body, is convenient for subsequent removal；Filtering area setting curtain type film assembly is separated by solid-liquid separation, and bottom is arranged cone bucket and is used for spoil disposal；It adjusts back area's setting two-stage to stir, the pH after adjusting removal of impurities meets subsequent technique requirement, and the online pH meter of setting controls adjusting in area.

Description

Integrated decleaning tank

Technical field

The utility model relates to environmentally friendly production equipments, dirty using acid-washing waste acid and pickling more particularly to a kind of steel industry During mud production is iron black, the ammonium chloride exhausted liquid of generation produces impurity removing equipment when anhydrous ammonium chloride, is mainly used for removing chlorination The metal ions such as iron contained in ammonium mother liquor, zinc, calcium, magnesium guarantee the product quality of the anhydrous ammonium chloride of production.

Background technique

During being used to produce iron oxide black pigment using steel industry acid-washing waste acid and pickling sludge, need to add a large amount of ammonia Water is used for regulation system pH value, a large amount of ammonium chloride waste-waters thus can be generated when iron black process cleans, concentration is up to the left side 10-14% The right side, the ammonium chloride waste-water are huge to environmental hazard, it is necessary to effectively be handled.Currently, not having to such strong ammonia wastewater There are effective removal means, anhydrous ammonium chloride product can only be converted for ammonium chloride waste-water using evaporative crystallization technique.But due to It produces and contains many metal class impurity in iron black raw material acid-washing waste acid, enter if not taking effective removal of impurities means anhydrous In ammonium chloride product, then it will have a direct impact on the purity and other product indexs of ammonium chloride product, cause value of the product cheap even The case where sales difficulty.Therefore, it is necessary to which the impurity metal ion in ammonium chloride mother liquor is removed using effective means.

When removing the preceding processing that ammonium chloride mother liquor impurity metal ion is carried out, need that ammonium chloride mother liquor is adjusted PH to, add precipitating reagent, reaction and filtering, to achieve the purpose that tentatively to remove metal ion, and adjust pH to having Conducive to the progress of subsequent evaporation crystallization.

Summary of the invention

The purpose of this utility model is in order to propose integrated ammonium chloride waste-water decleaning tank, to utilize steel industry pickling The ammonium chloride waste-water generated when spent acid and pickling sludge production iron oxide black pigment provides one efficient and that automatic control level is high integration Decleaning tank.The technical solution of the utility model is:

Integrated decleaning tank, it is characterised in that include regulatory region, zoneofoxidation, mixed zone, filtering area in the removal of impurities tank With readjustment area；

The regulatory region 2 is located on the left of decleaning tank, vertically point three subregions, and each subregion is arranged a regulatory region and stirs Device 10, and on-line control area pH meter 14 is arranged in each subregion lower right corner, for adjusting water inlet pH value, meets it subsequent flocculated It is required that；

Zoneofoxidation 3 is located at the decleaning tank lower left corner, a blender 11 is arranged in zoneofoxidation, and zoneofoxidation is arranged in the lower right corner ORP15 monitors oxidization condition on-line, for the substance needed to be oxidized in waste water to be carried out oxidation processes；

Mixed zone 4 is located at two subregions of decleaning tank middle lower portion, and each subregion is arranged two mixed zone blenders 12, will add The precipitating reagent entered be sufficiently mixed reacting with the metal ion in waste water, and flocculant is added into area, guarantees to form gold The small wadding body for belonging to precipitating is converted to compared with big flocculating body, is convenient for subsequent removal；

Filtering area 5 is located at setting curtain type film assembly 6 on the left of decleaning tank and is separated by solid-liquid separation, and heavy bucket is arranged in removal of impurities pot bottom 7 are used for spoil disposal, and effect is efficiently to be separated the wadding body that preceding step generates using the centrifugation of curtain type film assembly 6, is protected Card water outlet is free of suspended matter；

Readjustment area 8 is located at two subregions of decleaning tank middle upper portion, and setting two-stage adjusts back area's stirring 13, and each subregion bottom right Setting readjustment area's pH meter 16 in angle carries out the readjustment of pH value, for detecting water outlet pH value convenient for subsequent handling when being unsatisfactory for requiring It carries out.

The utility model more detailed description is as follows:

Integration removal of impurities can system, interior tank body includes regulatory region, zoneofoxidation, mixed zone, filtering area and readjustment area.Described Decleaning tank can generate chlorine spot corrosion situation, therefore use glass steel material in view of containing a large amount of chloride ions in ammonium chloride waste-water. Regulatory region adjusts for three-level and with stirring, and online pH meter is arranged and controls adjusting；Zoneofoxidation setting stirring, and be arranged ORP monitors oxidization condition on-line；Mixed zone is arranged two-stage and stirs, by the metal ion in the precipitating reagent and waste water of addition It carries out being sufficiently mixed reaction, and adds flocculant into area, guarantee that the small wadding body for forming precipitated metal is converted to larger wadding Body is convenient for subsequent removal；Filtering area setting curtain type film assembly is separated by solid-liquid separation, and bottom is arranged cone bucket and is used for spoil disposal；Readjustment Area is arranged two-stage and stirs, and the pH after adjusting removal of impurities meets subsequent technique requirement, and the online pH meter of setting controls adjusting in area.

The utility model mainly solves the problems, such as the efficient removal of the impurity metal ion contained in ammonium chloride mother liquor, emphasis It has investigated integrated decleaning tank and the practical function of each subregion and the metal ions such as iron, zinc, calcium, magnesium has been gone in the process of running Except effect, main difficult point is that pH value is adjusted to the dosage for removing deimpurity optimum range and oxidant, successively examines thus The chain control situation for having examined pH meter on-line monitoring and medicine system adds the removal rate of metal ion, oxidant dosage and ferrous iron The conditions such as ion remaval rate.

Compared with prior art, the utility model be integrated with adjust pH, hybrid reaction, flocculation, filtering and callback function with One, and improves the degree of automation of system, have it is following a little: (1) integral layout is reasonable, adjust pH, hybrid reaction, The close connection of flocculation, wadding body caused by being not present because of single dwell course in pipeline are crushed situation；(2) pH value is adjusted using multistage Measure, it is ensured that metal ion can react under suitable pH value condition in waste water, and the precipitating of formation is complete, metal ion Effectively removed；(3) it is respectively provided with in-line meter in pH regulation area, zoneofoxidation and readjustment area, realizes the automatic control of dedoping step System guarantees impurity-eliminating effect；(4) traditional precipitating pool technology is combined with new membrane technology, solve tradition precipitating pool technology The problem of unstable determination of effluent quality and membrane technology sewage sludge storage.

Detailed description of the invention:

The structural plan schematic diagram of Fig. 1, the utility model；

The structural profile illustration of Fig. 2, the utility model；

In figure: 1, water inlet；2, regulatory region；3, zoneofoxidation；4, mixed zone；5, filtering area；6, membrane module；7, cone bucket；8, Adjust back area；9, water outlet；10, regulatory region blender；11, zoneofoxidation blender；12, mixed zone blender；13, readjustment area is stirred It mixes；14, regulatory region pH meter；15, zoneofoxidation ORP；16, area's pH meter is adjusted back.

Specific embodiment

The utility model is described below by specific embodiment.Unless stated otherwise, used in the utility model Technological means is method known in those skilled in the art.In addition, embodiment be interpreted as it is illustrative, rather than limit The spirit and scope of the scope of the utility model, the utility model is limited only by the claims that follow.For those skilled in the art For member, under the premise of without departing substantially from the utility model in essence and range, to the various changes or change in these embodiments Also belong to the protection scope of the utility model.The integrated decleaning tank example of the utility model is described as follows:

Embodiment 1

Integrated decleaning tank, it is characterised in that include regulatory region, zoneofoxidation, mixed zone, filtering area in the removal of impurities tank With readjustment area；

The regulatory region 2 is located on the left of decleaning tank, vertically point three subregions, and each subregion is arranged a regulatory region and stirs Device 10, and on-line control area pH meter 14 is arranged in each subregion lower right corner, for adjusting water inlet pH value, meets it subsequent flocculated It is required that；Decleaning tank can generate chlorine spot corrosion situation, therefore use glass reinforced plastic in view of containing a large amount of chloride ions in ammonium chloride waste-water Material.

Zoneofoxidation 3 is located at the decleaning tank lower left corner, a blender 11 is arranged in zoneofoxidation, and zoneofoxidation is arranged in the lower right corner ORP15 monitors oxidization condition on-line；

Mixed zone 4 is located at two subregions of decleaning tank middle lower portion, and each subregion is arranged two mixed zone blenders 12, will add The precipitating reagent entered be sufficiently mixed reacting with the metal ion in waste water, and flocculant is added into area, guarantees to form gold The small wadding body for belonging to precipitating is converted to compared with big flocculating body, is convenient for subsequent removal；

Filtering area 5 is located at setting curtain type film assembly 6 on the left of decleaning tank and is separated by solid-liquid separation, and heavy bucket is arranged in removal of impurities pot bottom For spoil disposal, effect is efficiently to be separated the wadding body that preceding step generates using the centrifugation of curtain type film assembly, is guaranteed Water outlet is free of suspended matter；

Readjustment area 8 is located at two subregions of decleaning tank middle upper portion, and setting two-stage adjusts back area's stirring 13, and each subregion bottom right Setting readjustment area's pH meter 16 in angle carries out the readjustment of pH value, for detecting water outlet pH value convenient for subsequent handling when being unsatisfactory for requiring It carries out.

Embodiment 2

After steel industry pickling waste hydrochloric acid and pickling sludge production iron oxide black pigment, in the containing ammonium chloride waste water of discharge, Ammonium chloride concentration 12%, the concentration containing impurity are as follows: iron ion about 1500mg/L；Zinc ion about 600mg/L；Calcium ion is about 2000mg/L.After the boosted pump of waste water is promoted, enters integration removal of impurities reactor tank by 1, extremely judged according to one section of regulatory region of pH The pH value of water inlet, so that control signal controls the dosage into waste water in feedback, according to calculating, one section of regulatory region is responsible for coarse adjustment PH, the pH value for avoiding the hysteresis quality detected by pH meter from generating adjust excessive situation.Two sections of regulatory region and three sections are supervised according to pH meter Measured data is finely adjusted pH value, so that post precipitation reaction carries out under suitable pH value condition, impurity metal ion has been precipitated Entirely.Enter zoneofoxidation after the completion of pH value is adjusted, in this section by adding oxidant into waste water, makes in waste water+the ferrous iron of divalent Ion is completely oxidized to+iron ion of trivalent, so that iron ion is precipitated completely, the throwing of oxidant is determined by local area ORP instrument Dosage.Enter mixed zone after the completion of oxidation, mixing divides into two sections, and first segment adds precipitating reagent into waste water and oxidizes metal object It is converted into the small wadding body of precipitation form；Second segment, which adds flocculation aid into waste water, is converted into small wadding body compared with big flocculating body, on the one hand It can promote filter efficiency, on the other hand can play a protective role to subsequent membrane module, prevent small wadding body blocking fenestra.Mixing Area after the reaction was completed, into filtering area, is acted on by the high efficient solid and liquid separation of curtain type membrane, the metal precipitates of formation is effectively gone It removes, purifies ammonium chloride waste-water.Effect is deposited in decleaning tank in terms of the backwash two that metal precipitates under retention pass through gravity and film Bucket bottom, regular outlet.To guarantee that the evaporative crystallization process of subsequent ammonium chloride waste-water can be gone on smoothly, it is necessary to by filtering Waste water afterwards carries out readjustment pH value, therefore after filtering, and waste water enters readjustment area through water outlet pump, is determined according to readjustment area's pH meter Added amount of chemical enters subsequent evaporation Crystallization Procedure after meeting the requirements.Whole process all long-range control, does not need manually to join With.

Claims (2)

1. integrated decleaning tank, it is characterised in that include in the removal of impurities tank regulatory region, zoneofoxidation, mixed zone, filtering area and Adjust back area；

Wherein regulatory region (2) is located on the left of decleaning tank, vertically point three subregions, and a regulatory region blender is arranged in each subregion (10), and on-line control area pH meter (14) are arranged in each subregion lower right corner；

Zoneofoxidation (3) is located at the decleaning tank lower left corner, a blender (11) is arranged in zoneofoxidation, and zoneofoxidation is arranged in the lower right corner ORP(15) oxidization condition is monitored on-line；

Mixed zone (4) is located at two subregions of decleaning tank middle lower portion, and two mixed zone blenders (12) are arranged in each subregion；

Filtering area (5) is located at setting curtain type film assembly (6) on the left of decleaning tank and is separated by solid-liquid separation, and heavy bucket is arranged in removal of impurities pot bottom (7) it is used for spoil disposal；

Readjustment area (8) is located at two subregions of decleaning tank middle upper portion, and setting two-stage adjusts back area's stirring (13), and each subregion bottom right Angle setting readjustment area's pH meter (16).

2. integration decleaning tank according to claim 1, it is characterised in that the material glass reinforced plastic of the decleaning tank.