CN203683127U - Liquid polyaluminium chloride (PAC) production device - Google Patents
Liquid polyaluminium chloride (PAC) production device Download PDFInfo
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- CN203683127U CN203683127U CN201320767476.9U CN201320767476U CN203683127U CN 203683127 U CN203683127 U CN 203683127U CN 201320767476 U CN201320767476 U CN 201320767476U CN 203683127 U CN203683127 U CN 203683127U
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Abstract
The utility model discloses a liquid polyaluminium chloride (PAC) production device. The device comprises an acid tank system, a one-step reaction system and a two-step reaction system, wherein the acid tank system comprises a sulfuric acid storage tank system and a hydrochloric acid storage tank system; the one-step reaction system comprises a reaction tank, a reaction tank transfer tank, a flocculant preparation tank I, main filter presses and one-step liquid tanks; the two-step reaction system comprises a tempering tank, a tempering tank transfer tank, a cooling tower, a separation tank, a separated slag storage tank, a flocculant preparation tank II and a semi-finished product tank. The device has the beneficial effects that insoluble substances generated in reaction are separated through coagulation sedimentation and filter pressing, thus effectively controlling and reducing the content of the insoluble substances in the reaction liquid and increasing the yield and quality of liquid PAC.
Description
Technical field
The utility model belongs to poly aluminium chloride production technical field, relates to a kind of liquid poly aluminium chloride production equipment.
Background technology
Poly aluminium chloride, is commonly called as water purification agent, has another name called polymerize aluminum chloride, is called for short poly-aluminium, english name PAC; It is the cationic inorganic polymer flocculant of a kind of poly-hydroxy, multinuclear complexing body, and solid phase prod outward appearance is sorrel, yellow or white solid powder, and its chemical molecular formula is [AL
2(OH)
ncL
6-n]
m(in formula, 1≤n≤5, m≤10), wherein m represents extent of polymerization, and n represents the neutral degree of PAC product, soluble in water, there is stronger bridge formation adsorptivity, in hydrolytic process, follow the physicsization such as electrochemistry, cohesion, absorption and precipitation to change, the final [AL that generates
2(OH)
3(OH)
3], thereby reach purification object.
The fundamental difference of poly aluminium chloride and traditional inorganic coagulant is that traditional inorganic coagulant is low molecular crystal salt, and the structure of poly aluminium chloride is made up of the changeable polynary carboxyl complex compound of form, flocculation sediment speed is fast, be suitable for pH value wide ranges, to pipe-line equipment non-corrosiveness, purifying water effect is obvious, can effectively prop up the heavy metal ion such as middle chromaticness SS, COD, BOD and arsenic, mercury that dewater, and this product is widely used in tap water, process water and sewage treatment area.
Poly aluminium chloride is divided into form and is divided into two kinds: a. liquid poly aluminium chloride is undried form, have and need not dilute, load and unload advantage easy to use, price is relatively cheap, shortcoming is traffic requirements tank car, and unit cost increases (solid per ton is equivalent to 2-3 ton liquid); B. solid poly aluminium chloride is dried form, has the advantage of convenient transportation, while not needing tank car, shortcoming to be use, also needs dilution, increases working strength.
The raw material of producing poly aluminium chloride mainly contains two large classes: a class is aluminum-containing mineral, comprises bauxite (gibbsite, boehmite, diaspore), clay, kaolin, alunite etc.; Another kind of is other aluminum-containing raw material, comprises metallic aluminium, aluminium scrap bits, grey aluminium, aluminium hydroxide, aluminum chloride, coal gangue, flyash etc.The method of producing at present poly aluminium chloride mainly contains metallic aluminium (comprising aluminium ash, lead skim) method, active aluminium hydroxide method, aluminium sesquioxide (comprising bauxitic clay, coal gangue etc.) method, crystal aluminum chloride method etc.
1. metallic aluminium method: adopt the raw material of the synthetic poly aluminium chloride of metallic aluminium method to be mainly the tankage that aluminium is processed, as aluminium bits, aluminium ash and aluminium slag etc.Under agitation slowly add according to a certain ratio hydrochloric acid to react by aluminium ash, make liquid aluminium polychloride through slaking polymerization, sedimentation, then through dilute filtration, concentrated, dry making.In technique, can be divided into 3 kinds of acid systems, alkaline process, neutralisation.Acid system is mainly that quality product is wayward with HCl; Alkaline process producting process difficulty is higher, and facility investment is large and alkali charge is large, and pH controls and takes raw material, and cost is higher; With maximum be neutralisation, as long as control proportioning well, generally can be up to state standards.
2. aluminium hydroxide method
The toxic substance content such as aluminium hydrate powder purity is higher, synthetic poly aluminium chloride heavy metal are low, generally adopt the acid-soluble production technique of heating and pressurizing.This technique is fairly simple, but the basicity of polymerize aluminum chloride of producing is lower, and therefore generally adopting aluminium hydroxide to heat, pressurization is acid-soluble adds in calcium aluminate breeze and two procedures.
3. aluminium sesquioxide method
Raw material containing aluminium sesquioxide mainly contains gibbsite, aluminium vanadine, kaolin, coal gangue etc.This production technique can be divided into two steps: the first step is to obtain crystal aluminum chloride, and second step is to obtain poly aluminium chloride by pyrolysis method or neutralisation.
4. aluminium chloride process
Adopting chlorination aluminium powder is Raw material processing poly aluminium chloride, and this method application is the most general.Available crystal aluminum chloride, in 170 DEG C of pyrolysis of seething with excitement, adds water cure polymerization, then through solidifying, dry making.
Built liquid poly aluminium chloride production equipment at present, majority is the device that bauxitic clay and calcium aluminate two-step approach are produced liquid poly aluminium chloride, it is in the acid-soluble reaction of the first step and second step polyreaction, capital produces a large amount of insolubless and is difficult to separate with reaction solution, causes insolubles severe overweight in final poly aluminium chloride product.Therefore, must improve existing liquid poly aluminium chloride production equipment, effectively to control and to reduce the insolubles content in reaction solution, improve output and the quality of liquid poly aluminium chloride.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of liquid poly aluminium chloride production equipment, effectively controls and reduces the insolubles content in reaction solution, improves output and the quality of liquid poly aluminium chloride.
For achieving the above object, the utility model provides following technical scheme:
Liquid poly aluminium chloride production equipment of the present utility model, comprises sour can system, single step reaction system and two step reactive systems;
Described sour can system comprises sulfuric acid storage tank system and hydrochloric acid tank system, sulfuric acid storage tank system comprises sulfuric acid storage tank and sulfuric acid unloading pump, the sulfuric acid pump outlet of unloading is communicated with sulfuric acid storage tank, hydrochloric acid tank system comprises hydrochloric acid tank, hydrochloric acid unloading pump and hydrochloric acid transferpump, the hydrochloric acid pump outlet of unloading is communicated with hydrochloric acid tank, and the entrance of hydrochloric acid transferpump is communicated with hydrochloric acid tank;
Described single step reaction system comprises reaction tank, reaction tank transfer pond, flocculating agent formulation tank I, main pressure filter and a step liquid pool, described hydrochloric acid carries pump outlet to be communicated with reaction tank, described sulfuric acid storage tank is communicated with reaction tank, described reaction tank is provided with bauxitic clay charging opening, reaction tank is communicated with reaction tank transfer pond, flocculating agent formulation tank I is communicated with reaction tank transfer pond, reaction tank transfer pond is communicated with the entrance of main pressure filter by the muddy material pump of a step liquid, and the liquid exit of main pressure filter is communicated with a step liquid pool;
Described two step reactive systems comprise modified pond, modified Chi Zhongzhuanchi, cooling tower, separate tank, separate slag saving pond, flocculating agent formulation tank II and work in-process pond, a described step liquid pool is communicated with modified pond by a step liquid transferpump, described modified pond is provided with calcium aluminate charging opening, modified pond is communicated with modified Chi Zhongzhuanchi, modified Chi Zhongzhuanchi is communicated with the entrance of cooling tower by modified liquid transferpump, the outlet of cooling tower is communicated with separate tank, flocculating agent formulation tank II is communicated with separate tank, the top of separate tank is communicated with work in-process pond, the bottom of separate tank with separate slag saving pond be communicated with, separating slag saving pond is communicated with reaction tank by separating slag transferpump.
Further, the quantity of described sulfuric acid unloading pump is two and parallel with one another, and the quantity of described hydrochloric acid tank is ten and parallel with one another, and the quantity of described hydrochloric acid unloading pump is two and parallel with one another, and the quantity of described hydrochloric acid transferpump is two and parallel with one another.
Further, described reaction tank, reaction tank transfer pond and flocculating agent formulation tank I are equipped with agitator, the quantity of the muddy material pump of a described step liquid is two and parallel with one another, and the quantity of described main pressure filter is three and parallel with one another, and the quantity of a described step liquid pool is four and parallel with one another.
Further, described modified pond, separate tank, separation slag saving pond and flocculating agent formulation tank II are equipped with agitator, and described cooling tower is the cooling tower that is provided with induced draft fan.
Further, described reaction tank is provided with Waste gas outlet and vapor interface, and described reaction tank transfer pond is provided with Waste gas outlet, and described main pressure filter top is provided with gas skirt, and described modified pond is provided with Waste gas outlet and vapor interface.
The beneficial effects of the utility model are:
1) the utility model is provided with the devices such as reaction tank transfer pond, flocculating agent formulation tank and pressure filter in single step reaction system, the insolubles producing in separating acid-soluble reaction by coagulating sedimentation, press filtration in these devices, effectively controls and has reduced the insolubles content in a step liquid;
2) the utility model is provided with separate tank, separates the devices such as slag saving pond and flocculating agent formulation tank in two step reactive systems, in these devices, further separate insolubles by coagulating sedimentation, sedimentation, effectively control and reduced the insolubles content in reaction solution, having improved output and the quality of liquid poly aluminium chloride.
Brief description of the drawings
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
Fig. 1 is the structural representation of sour can system;
Fig. 2 is the structural representation of single step reaction system;
Fig. 3 is the structural representation of two step reactive systems.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Liquid poly aluminium chloride production equipment of the present utility model, comprises sour can system, single step reaction system and two step reactive systems.
Fig. 1 is the structural representation of sour can system, as shown in the figure, acid can system comprises sulfuric acid storage tank system and hydrochloric acid tank system, sulfuric acid storage tank system comprises sulfuric acid storage tank 11 and sulfuric acid unloading pump 12, the outlet of sulfuric acid unloading pump 12 is communicated with sulfuric acid storage tank 11, hydrochloric acid tank system comprises hydrochloric acid tank 13, hydrochloric acid unloading pump 14 and hydrochloric acid transferpump 15, and the outlet of hydrochloric acid unloading pump 14 is communicated with hydrochloric acid tank 13, and the entrance of hydrochloric acid transferpump 15 is communicated with hydrochloric acid tank 13; The quantity of described sulfuric acid unloading pump 12 is two and parallel with one another, and the quantity of described hydrochloric acid tank 13 is ten and parallel with one another, and the quantity of described hydrochloric acid unloading pump 14 is two and parallel with one another, and the quantity of described hydrochloric acid transferpump 15 is two and parallel with one another.Sulfuric acid from tank car for sulphuric acid use pumps into sulfuric acid storage tank 11 by sulfuric acid unloading pump 12, pumps into hydrochloric acid tank 13 from the hydrochloric acid of hydrochloric acid tank car by hydrochloric acid unloading pump 14.
Fig. 2 is the structural representation of single step reaction system, as shown in the figure, single step reaction system comprises reaction tank 21, reaction tank transfer pond 22, flocculating agent formulation tank I 23, main pressure filter 24 and a step liquid pool 25, the outlet of described hydrochloric acid transferpump 15 is communicated with reaction tank 21, described sulfuric acid storage tank 11 is communicated with reaction tank 21, described reaction tank 21 is provided with bauxitic clay charging opening, reaction tank 21 is communicated with reaction tank transfer pond 22, flocculating agent formulation tank I 23 is communicated with reaction tank transfer pond 22, reaction tank transfer pond 22 is communicated with the entrance of main pressure filter 24 by the muddy material pump 26 of a step liquid, the liquid exit of main pressure filter 24 is communicated with a step liquid pool 25, described reaction tank 21, reaction tank transfer pond 22 and flocculating agent formulation tank I 23 are equipped with agitator, the quantity of the muddy material pump 26 of a described step liquid is two and parallel with one another, the quantity of described main pressure filter 24 is three and parallel with one another, and the quantity of a described step liquid pool 25 is four and parallel with one another.In reaction tank 21, add hydrochloric acid and processing wastewater, then drop into the bauxitic clay of formula ratio, reacting by heating, reaction product is taked to put into reaction tank transfer pond 22 from stream mode, add poly-propionic acid amide flocculation agent flocculation by flocculating agent formulation tank I 23, then pump in main pressure filter 24 by the muddy material pump 26 of a step liquid, reaction tank product is carried out to the separation of slag liquid, an isolated step liquid pump enters in a step liquid pool 25, and the slag wash trough that removes slag carries out subsequent disposal.
Fig. 3 is the structural representation of two step reactive systems, as shown in the figure, two step reactive systems comprise modified pond 31, transfer pond, modified pond 32, cooling tower 33, separate tank 34, separate slag saving pond 35, flocculating agent formulation tank II 36 and work in-process pond 37, a described step liquid pool 25 is communicated with modified pond 31 by a step liquid transferpump 38, described modified pond 31 is provided with calcium aluminate charging opening, modified pond 31 is communicated with transfer pond, modified pond 32, transfer pond, modified pond 32 is communicated with the entrance of cooling tower 33 by modified liquid transferpump 39, the outlet of cooling tower 33 is communicated with separate tank 34, flocculating agent formulation tank II 36 is communicated with separate tank 34, the top of separate tank 34 is communicated with work in-process pond 37, the bottom of separate tank 34 with separate slag saving pond 35 and be communicated with, separating slag saving pond 35 is communicated with reaction tank 21 by separating slag transferpump 30, described modified pond 31, separate tank 34, separation slag saving pond 35 and flocculating agent formulation tank II 36 are equipped with agitator, and described cooling tower 33 is for being provided with the cooling tower of induced draft fan.By a step liquid transferpump 38, a step liquid pump is entered in modified pond 31, under agitation condition, progressively drop into the reaction of formula ratio calcium aluminate, after having reacted, material is interior after air cooling at cooling tower 33, enter separate tank 34 and add flocculation agent to carry out flocculation separation, after quiescent settling, supernatant liquor is put into work in-process pond 37; Flocculation separation slag pumps into reaction tank 21 from separating slag saving pond 35, when slag in question response pond 21 reaches process stipulation disposal amount, add formula ratio hydrochloric acid, sulfuric acid and water reaction, after slag has reacted, material enters reaction tank transfer pond 22 by aforementioned technical process and carries out flocculation separation.
In the present embodiment, described reaction tank 21 is provided with Waste gas outlet 27 and vapor interface 28, described reaction tank transfer pond 22 is provided with Waste gas outlet 29, and described main pressure filter 24 tops are provided with gas skirt 20, and described modified pond 31 is provided with Waste gas outlet 301 and vapor interface 302; Be collected into tail gas absorber and absorb processing containing sour waste gas unification what produce in reaction process.
The utility model is provided with the devices such as reaction tank transfer pond, flocculating agent formulation tank and pressure filter in single step reaction system, the insolubles producing in separating acid-soluble reaction by coagulating sedimentation, press filtration in these devices, effectively controls and has reduced the insolubles content in a step liquid; In two step reactive systems, be provided with separate tank, separate the devices such as slag saving pond and flocculating agent formulation tank, in these devices, further separate insolubles by coagulating sedimentation, sedimentation, effectively control and reduced the insolubles content in reaction solution, having improved output and the quality of liquid poly aluminium chloride.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (5)
1. a liquid poly aluminium chloride production equipment, is characterized in that: comprise sour can system, single step reaction system and two step reactive systems;
Described sour can system comprises sulfuric acid storage tank system and hydrochloric acid tank system, sulfuric acid storage tank system comprises sulfuric acid storage tank and sulfuric acid unloading pump, the sulfuric acid pump outlet of unloading is communicated with sulfuric acid storage tank, hydrochloric acid tank system comprises hydrochloric acid tank, hydrochloric acid unloading pump and hydrochloric acid transferpump, the hydrochloric acid pump outlet of unloading is communicated with hydrochloric acid tank, and the entrance of hydrochloric acid transferpump is communicated with hydrochloric acid tank;
Described single step reaction system comprises reaction tank, reaction tank transfer pond, flocculating agent formulation tank I, main pressure filter and a step liquid pool, described hydrochloric acid carries pump outlet to be communicated with reaction tank, described sulfuric acid storage tank is communicated with reaction tank, described reaction tank is provided with bauxitic clay charging opening, reaction tank is communicated with reaction tank transfer pond, flocculating agent formulation tank I is communicated with reaction tank transfer pond, reaction tank transfer pond is communicated with the entrance of main pressure filter by the muddy material pump of a step liquid, and the liquid exit of main pressure filter is communicated with a step liquid pool;
Described two step reactive systems comprise modified pond, modified Chi Zhongzhuanchi, cooling tower, separate tank, separate slag saving pond, flocculating agent formulation tank II and work in-process pond, a described step liquid pool is communicated with modified pond by a step liquid transferpump, described modified pond is provided with calcium aluminate charging opening, modified pond is communicated with modified Chi Zhongzhuanchi, modified Chi Zhongzhuanchi is communicated with the entrance of cooling tower by modified liquid transferpump, the outlet of cooling tower is communicated with separate tank, flocculating agent formulation tank II is communicated with separate tank, the top of separate tank is communicated with work in-process pond, the bottom of separate tank with separate slag saving pond be communicated with, separating slag saving pond is communicated with reaction tank by separating slag transferpump.
2. liquid poly aluminium chloride production equipment according to claim 1, it is characterized in that: the quantity of described sulfuric acid unloading pump is two and parallel with one another, the quantity of described hydrochloric acid tank is ten and parallel with one another, the quantity of described hydrochloric acid unloading pump is two and parallel with one another, and the quantity of described hydrochloric acid transferpump is two and parallel with one another.
3. liquid poly aluminium chloride production equipment according to claim 1, it is characterized in that: described reaction tank, reaction tank transfer pond and flocculating agent formulation tank I are equipped with agitator, the quantity of the muddy material pump of a described step liquid is two and parallel with one another, the quantity of described main pressure filter is three and parallel with one another, and the quantity of a described step liquid pool is four and parallel with one another.
4. liquid poly aluminium chloride production equipment according to claim 1, is characterized in that: described modified pond, separate tank, separation slag saving pond and flocculating agent formulation tank II are equipped with agitator, and described cooling tower is the cooling tower that is provided with induced draft fan.
5. liquid poly aluminium chloride production equipment according to claim 1, it is characterized in that: described reaction tank is provided with Waste gas outlet and vapor interface, described reaction tank transfer pond is provided with Waste gas outlet, described main pressure filter top is provided with gas skirt, and described modified pond is provided with Waste gas outlet and vapor interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320767476.9U CN203683127U (en) | 2013-11-29 | 2013-11-29 | Liquid polyaluminium chloride (PAC) production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320767476.9U CN203683127U (en) | 2013-11-29 | 2013-11-29 | Liquid polyaluminium chloride (PAC) production device |
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| CN203683127U true CN203683127U (en) | 2014-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219707A (en) * | 2016-09-19 | 2016-12-14 | 上海城市水资源开发利用国家工程中心有限公司 | The preparation facilities of a kind of energy-efficient control aluminum control algae ferrum aluminum compound coagulant and method |
-
2013
- 2013-11-29 CN CN201320767476.9U patent/CN203683127U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106219707A (en) * | 2016-09-19 | 2016-12-14 | 上海城市水资源开发利用国家工程中心有限公司 | The preparation facilities of a kind of energy-efficient control aluminum control algae ferrum aluminum compound coagulant and method |
| CN106219707B (en) * | 2016-09-19 | 2023-11-14 | 上海城市水资源开发利用国家工程中心有限公司 | Preparation device and method of efficient energy-saving aluminum-control algae-control iron-aluminum composite coagulant |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20171129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |