CN207941217U - A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system - Google Patents
A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system Download PDFInfo
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- CN207941217U CN207941217U CN201820165876.5U CN201820165876U CN207941217U CN 207941217 U CN207941217 U CN 207941217U CN 201820165876 U CN201820165876 U CN 201820165876U CN 207941217 U CN207941217 U CN 207941217U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a kind of light alkali evaporation equipment of multistage, it is characterized by comprising the first fourth stage shell-and-tube heat exchangers, one level Four steam-water separator, first fourth stage shell-and-tube heat exchanger is sequentially connected with by valve, first fourth stage shell-and-tube heat exchanger connects one to one with a level Four steam-water separator, lye after being vaporized in shell-and-tube heat exchanger is admitted to corresponding steam-water separator and carries out vapor-liquid separation, the liquid isolated per level-one steam-water separator sends the shell-and-tube heat exchanger of corresponding connection back to, the steam isolated is sent to next stage shell-and-tube heat exchanger, alkali is concentrated to export from fourth stage shell-and-tube heat exchanger.The multistage light alkali evaporation equipment of the utility model improves light alkali and is concentrated by evaporation organic efficiency, can be greatly energy saving, reduces cost, more efficient more energy efficient, and higher economic benefit is brought for enterprise.
Description
Technical field
The utility model is related to dyeings, and in particular to mercerizing diluting alkali recovery system.
Technical background
Mercerizing diluting alkali recycles present situation and requirement：
Specification dyeing construction is just clearly proposed in No. 14 file of National Development and Reform Committee in 2008, promotes structural adjustment,
Environmental protection reduces pollution, walks Circular Economy, with supplies consumption → product → waste material → recovered material → again
Biological material → reconstituted product is material instruction route, and practicable " low-carbon economy " theory is that our industry current healths are sent out comprehensively
The light alkali collection recycling of the inexorable trend of exhibition, the wherein mercerizing machine in dyeing is exactly the important act for practicing " low-carbon economy "
It arranges.
In traditional dyeing process flow, lye is the maximum chemicals of consumption in printing and dyeing enterprise, accounts for about total life
Produce the 10% of cost, caustic soda it is a large amount of using causing the sewage alkalinity of discharge big indirectly, seriously affect biochemical wastewater treatment with
And the Treated sewage reusing of back segment.Wherein mercerizing process alkali consumption accounts for about 60% or more of total alkali charge, so the conjunction of mercerizing diluting alkali liquid
Reason recovery processing reuse has far-reaching influence and effect for the control of the processing cost of enterprise and wastewater treatment.
Widely used light alkali collection concentrator expander equipment and the multistage evaporation of import are set in industry at present
Standby, the problems such as generally existing evaporates low operating cost height, inefficiencies, net benefits, equipment fluctuation of service, all multiple enterprises hardships are not
It may say.
Invention content
The utility model is to solve low, the of high cost problem of evaporation efficiency present in the current light alkali collection of dyeing,
A kind of light alkali evaporation equipment of multistage is provided first, the light alkali evaporation equipment of multistage include the first-fourth stage shell-and-tube heat exchanger,
One-level Four steam-water separator, the first-fourth stage shell-and-tube heat exchanger are sequentially connected with by valve, and light alkali is from first order shell
Heat exchanger input, lye every level-one shell-and-tube heat exchanger tube side flow, steam every level-one shell-and-tube heat exchanger shell fluid flow,
First-the fourth stage shell-and-tube heat exchanger connects one to one with one-level Four steam-water separator, after being vaporized in shell-and-tube heat exchanger
Lye is admitted to corresponding steam-water separator and carries out vapor-liquid separation, and it is right with it that the liquid isolated per level-one steam-water separator is sent back to
The shell-and-tube heat exchanger that should be connected, the steam isolated are sent to next stage shell-and-tube heat exchanger, concentrate alkali from fourth stage shell-and-tube heat exchanger
Output.
The utility model additionally provides a kind of multistage mercerizing diluting alkali recovery system, which includes the light alkali evaporation of above-mentioned multistage
Equipment.
The light alkali evaporation equipment of multistage of the utility model, is used for the light alkali collection of dyeing mercerizing machine.The principle of vapo(u)rization system is：
Fabric with highly basic after acting on, and into scrubbing section, a large amount of water dilutes lye, and a daily mercerizing machine generates 100 tons or so
Light alkali, weak lye enters vapo(u)rization system after optimization filtration system removal SS (suspended matter) by leading portion system, and system passes through
Heat source stream heating weak lye reaches vapourizing temperature, carries out steam-water separation into high-efficiency steam-water separator, single-stage system uses certainly
Right cycle operation principle increases the efficiency of evaporation, and heating steam is condensed outside evaporator tube, is installed waste-heat recovery device additional and is returned
The waste heat of high-temperature condensation water is received, the heat source of the waste heat of steam-water separator as next stage maximumlly improves efficiency of energy utilization,
Current stabilization is used to control step by step, light alkali concentration steps up, and achievees the purpose that second level waste heat recovery dress is installed in concentration, system end additional
It sets progress secondary waste heat recycling and greatly reduces the usage amount of cooling water to reduce the waste heat of system.The utility model is multistage
Light alkali evaporation equipment improves light alkali and is concentrated by evaporation organic efficiency, can be greatly energy saving, reduces cost, more efficient more to save
Can, bring higher economic benefit for enterprise.
Description of the drawings
Fig. 1 is the multistage light alkali evaporation equipment schematic diagram of the utility model；
Fig. 2 is that multistage mercerizing diluting alkali recovery system light alkali concentration recycles schematic diagram.
Specific implementation mode
The embodiment of the utility model is described further with an example below.The example be it is descriptive,
It is not restrictive, protection scope of this utility model cannot be limited by this.
Dyeing and finishing mercerizing process is the critical process for improving textile dyeing performance, and fabric passes through high-concentration alkali liquor, in cotton fiber
Puffing, generation alkali cellulose occurs for portion, and the surface area increase of fiber, under tension, fiber alignment more neatly increases
Gloss improves strength, and fabric is after mercerising, and crystalline region reduces unformed area and increases, and adsorption capacity substantially enhances, to carry
The adsorption capacity of the roads Gao Liaohou dyes, color yield higher.
Mercerizing machine lye using process by matching alkali, having artificial or automatically configuring, according to the different situations of production order,
Different lye technique concentration is set, according to the requirement of prescription, has manual or automatic setting, generally there is outsourcing high alkali liquid and mercerising
The weak lye of recycling or the lye after evaporation and concentration are configured according to technique concentration, and every mercerizing machine has fixed with alkali
Case stirs evenly by inputting high alkali liquid and sig water and is transported to mercerizing machine use.
Entering taut cloth cylinder or straight roller after textile pad lye prevents fabric from significantly shrinking, and shapes subsequently into shaping area
The fixation of size enters lixiviating process after size sizing, fabric from rolling mechanism about 20S of the alkali to lixiviating, lixiviating process
Device configuration is the key that generally first have cloth gripper 5 to spray 5 vacuum suction alkali concerning mercerizing diluting alkali concentration level and start, then
By the straight roller lixiviating slot of high temperature roll and wash away alkali, finally there is 6-10 groups water washing chamber to carry out washing lixiviating, also has last in washing
Part uses in pickling and lixiviating.
Setting after the lye swelling of fiber effect that the water for having mercerising water washing chamber to put into of light alkali is carried with fabric
Process is changed, weak lye is valuable recyclable material resource for factory, but due to the concentration of lye phase after dilution
5-6 times is had dropped than high alkali liquid, while amount also increases 5-6 times, is digested after mercerizing machine recycling endless.Use evaporation and concentration
Mode be to establish the effective measures of mercerising lye circulating and recovering.
The effect of the light alkali collection of mercerizing machine mainly reduces the discharge of resource material, reduces treatment pressure of sewage, reduces outer
The amount of purchase of fresh soda is purchased, production cost is reduced, makes the best use of everything, establish the pattern of dyeing and finishing factory lye closed cycle.Main work
It is as flow：Mercerizing machine generates weak lye, and level-one mechanical type filter progress suspended matter is transported to by recovery pump by collecting
Removal, be then delivered in light alkali storage tank, in storage tank after a storage capacity high position, open evaporator carry out concentration, after concentration
Lye and the fresh lye of outsourcing recycled again according to proportioning.
It is as shown in Figure 1 the multistage light alkali evaporation equipment of the utility model, including the first-fourth stage shell-and-tube heat exchanger, one-four
Grade steam-water separator.First-fourth stage shell-and-tube heat exchanger is sequentially connected with by pipeline, valve.Light alkali to be concentrated is from the first order
Shell-and-tube heat exchanger inputs, and lye is in the tube side flow of every level-one shell-and-tube heat exchanger, shell side of the steam in every level-one shell-and-tube heat exchanger
Flowing.First-fourth stage shell-and-tube heat exchanger connects one to one with one-level Four steam-water separator, after being vaporized in shell-and-tube heat exchanger
Lye be admitted to corresponding steam-water separator and carry out vapor-liquid separation, the liquid isolated per level-one steam-water separator is sent back to and it
The shell-and-tube heat exchanger being correspondingly connected with, the steam isolated are sent to next stage shell-and-tube heat exchanger, and concentration alkali exchanges heat from fourth stage shell
Device exports.
Operation principle：The multistage light alkali evaporation equipment of the utility model provides thermal energy using 0.6MPA saturated vapors, by the
Level-one shell-and-tube heat exchanger lye is in tube side, and in shell side by weak lye indirect heat exchange to boiling temperature, lye vaporizes steam
The self-loopa from top to bottom in shell heat exchange and steam-water separator afterwards, carries out vapor-liquid separation, in this process in steam-water separator
Middle concentration of lye steps up.Waste heat after vaporization separation, which enters next stage shell-and-tube heat exchanger, to be continued to heat lye, same after heating
Sample carries out steam-water separation by matched subordinate's steam-water separator, until the fourth stage completes the concentration process of lye.Level Four carbonated drink
The steam (vapor) outlet of separator is connected with condenser, and the low temperature exhaust heat that evaporation equipment final stage generates is by condenser input cold water heat exchange
Generation high-temperature-hot-water is delivered to printing and dyeing workshop washing and utilizes again.Whole system matches vacuum pump, vacuum pump and the first-fourth stage
Shell-and-tube heat exchanger connects, and the process of evaporation is made to be carried out in the state of negative pressure, to reduce the boiling temperature of lye, improves the energy
Service efficiency.The high-temperature condensation water generated in evaporation process uses flash tank recovery waste heat after steam trap exports, and fresh
Steam utilizes again together as heat source.It is connected with liquid level sensor between shell-and-tube heat exchangers at different levels, for controlling lye flow direction.
Fourth stage shell-and-tube heat exchanger is connected with concentration sensor, defeated for carrying out accurate online detection and control to final stage concentration alkali concentration
Go out.
The multistage mercerizing diluting alkali recovery system of the utility model includes the light alkali evaporation equipment of above-mentioned multistage, mercerizing diluting alkali concentration
It is as shown in Figure 2 to recycle flow.
Commercially available alkali and concentration alkali are pressed 1:For 9 proportional arrangements at lye, a high position is delivered to mercerizing machine, and lye enters mercerising cycle
Slot is delivered to mercerising using power transfer pump after stirring evenly and rolls alkali slot, and fabric carries out rolling alkali operation 80% cloth of band weight lye, so
Pincers shaping area on the taut cloth of post-mercerizing, after 5 sprays 5 inhale the high roller lixiviating of lixiviating, high temperature of alkali, washing lixiviating, light alkali is through coarse filtration
It is recycled to light alkali inventory bucket.Then light alkali enters the multistage light alkali evaporation equipment of the utility model, and obtain concentration alkali makes for recycling
With.
Primary structure introduction：
Shell-and-tube heat exchanger：Stainless steel is commonly called as tubular heat exchanger, and in tube side, heat source (steams heated medium (lye)
Vapour) in shell side, by conducting heat, steel carry out thermal energy transmission.The utility model multistage mercerizing diluting alkali equipment shares 4 groups of lye heat exchange
Device (the first-fourth stage shell-and-tube heat exchanger) and 2 groups of condenser heat exchangers (series connection), in addition also 3 for lye it is pre-warmed
Heat exchanger (is not drawn into) in figure.
Steam-water separator：Lye is begun to boil off after shell-and-tube heat exchanger is heated to lye boiling point, the work of steam-water separator
With being exactly that the lye after vaporization is carried out steam-water separation, concentration of lye is made to improve.Steam-water separator will ensure to vaporize lye as possible
Be sufficiently separated, the condensation water ph value after vaporization be less than 8.The utility model multistage mercerizing diluting alkali equipment shares 4 vaporization separation
Device (one-level Four steam-water separator).
Pump：4 pumps are shared in the utility model multistage mercerizing diluting alkali system, have 2 pump for light alkali deliver into and
Alkali output is concentrated, the condensed water after a condensate pump is collected for system arranges use outside, and a vacuum pump is for the negative of system
Pressure adjusts the explosive evaporation under lower negative pressure and low-boiling temperature of holding system.
Valve, pipe fitting：Pipeline, valve are for direct connections at different levels and control.
Temperature, pressure concentration sensor：Temperature for the lye steam for acquiring each road, concentration of lye are detected for detecting
Concentrate the consistency of the concentration of alkali.
One specific embodiment systems technology parameter of the utility model is as follows：
Light alkali ability：10T/h
Without surplus hot water's heat steam-water ratio：1：3
The steam-water ratio of heat containing surplus hot water：1：5 (hot water, which surpasses 80 DEG C, can enter workshop washing use)
Into light alkali concentration：55g/L
Go out alkali concentration：166-530g/L 14.35%-37.65% (it is adjustable to go out alkali concentration)
Steam pressure：0.5-0.6MPA
Steam consumption quantity：2.3T/h
Power consumption general power：10KW/h
Cooling water usage amount：15t/h
System benefit Predict analysis：
1 mercerizing machine generates light alkali number
Technique：Dry cloth mercerising, equipment：Capital of a country chain mercerizer
◇, fabric specification：58/57 20*16/128*60 kinds
◇, technique alkali dense 220g/L, fabric 342g/m,
◇, speed：70 ms/min
◇, the light alkali concentration of recycling：55g/L (5.2%)
◇, commodity alkali concentration：400g/L (32%) unit prices：750 yuan/t
◇, Alkali liquid compounding method：Commercially available alkali and light alkali configuration concentration supplement difference is additional,
Configuration concentration：280g/L (22.5%)
◇, 1 mercerizing machine alkali charge hourly is calculated：Cloth weigh 70 ms/min of 0.342 kg/m x x 60 minutes ×
80% pick-up=1149t/h.
◇, recyclable light alkali number：22.5% (concentration subtracts concentration) × 1.149t/h (usage amount) × 20.4 is (daily when booting
Between) ÷ 5.2% (light alkali collection concentration) × 95% (light alkali recovery)=96.3t/d
Benefit Predict analysis：
◇, light alkali collection income：
96.3t/d (daily light alkali number) × 5.2% (light alkali concentration) ÷ 32% (the fresh alkali concentration in market) × 750 yuan/t
Yuan/day of (market fresh soda price)=11736.5
◇, sewage acid adding amount is reduced：
96.3t/d (daily light alkali number) × 98% (market sulfuric acid concentration) × 650 5.2% ÷ of (light alkali concentration) × 1.215
Member/t (market sulfuric acid price)=4035 yuan/day
◇, hot water calorific value yield：
15t/h × 4.1868 (hydro-thermal is molten) × 2696.18kj/kg × 180 (60-25) temperature difference ÷ (steam unit price) ×
70% (thermal energy recycling uses efficient) × 20.4h=2095.5 members/d
◇, comprehensive income
11736.5+4035+2095.5=17866.5 member/day
Evaporation equipment operating cost：
◇, consumption vapour：96.3t/d (daily light alkali number) ÷ 10t/h (instantaneous treating capacity) × 2.3t/h (instantaneous steam consumption) ×
180 yuan/t (steam unit price)=3986.82 yuan/t
◇, power consumption：10kwh (installed power) × 0.78 yuan of (electricity unit price) × 20.4h=159.12 member/d
It is ◇, artificial：People=450 yuan of 150 yuan/day × 3/day
Cost accounting：3986.82+159.12+450=4595.94 members/day
2 mercerizing machines configure reclaimer net benefits：
Daily：(17866.5-4595.94) × 2=26541 yuan/day
Monthly：26541 × 26 days=690,000 yuan/month
Return period is estimated in equipment investment：3 months
Claims (7)
1. a kind of light alkali evaporation equipment of multistage, it is characterised in that including the first-fourth stage shell-and-tube heat exchanger, one-level Four carbonated drink point
From device, the first-fourth stage shell-and-tube heat exchanger is sequentially connected with by valve, and light alkali is inputted from first order shell-and-tube heat exchanger, alkali
Liquid every level-one shell-and-tube heat exchanger tube side flow, steam every level-one shell-and-tube heat exchanger shell fluid flow, described first-the four
Grade shell-and-tube heat exchanger connects one to one with one-level Four steam-water separator, and the lye in shell-and-tube heat exchanger after vaporization is admitted to pair
The steam-water separator answered carries out vapor-liquid separation, and the liquid isolated per level-one steam-water separator sends the shell of corresponding connection back to
Heat exchanger, the steam isolated are sent to next stage shell-and-tube heat exchanger, and concentration alkali is exported from fourth stage shell-and-tube heat exchanger.
2. multistage light alkali evaporation equipment as described in claim 1, it is characterised in that further include condenser, the condenser connection
In the steam (vapor) outlet of level Four steam-water separator.
3. light alkali evaporation equipment as described in claim 1 multistage, it is characterised in that further include vacuum pump, the vacuum pump and the
One-fourth stage shell-and-tube heat exchanger connects, and subnormal ambient is provided for spent liquor evaporation process.
4. multistage light alkali evaporation equipment as described in claim 1, it is characterised in that be connected with liquid between shell-and-tube heat exchangers at different levels
Level sensor, for controlling lye flow direction.
5. multistage light alkali evaporation equipment as described in claim 1, it is characterised in that fourth stage shell-and-tube heat exchanger is connected with concentration
Sensor, the concentration alkali concentration for controlling output.
6. multistage light alkali evaporation equipment as described in claim 1, it is characterised in that further include waste-heat recovery device, for recycling
The waste heat of high-temperature condensation water.
7. a kind of multistage mercerizing diluting alkali recovery system, it is characterised in that steamed comprising any light alkali of multistage of claim 1-6
Send out equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820165876.5U CN207941217U (en) | 2018-01-31 | 2018-01-31 | A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system |
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| CN201820165876.5U CN207941217U (en) | 2018-01-31 | 2018-01-31 | A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126362A (en) * | 2018-01-31 | 2018-06-08 | 宜兴市华东印染机械厂 | A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system |
| CN110013680A (en) * | 2019-04-23 | 2019-07-16 | 四川汇宇生物技术有限公司 | A kind of gelatin evaporation heat recycle device |
-
2018
- 2018-01-31 CN CN201820165876.5U patent/CN207941217U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126362A (en) * | 2018-01-31 | 2018-06-08 | 宜兴市华东印染机械厂 | A kind of light alkali evaporation equipment of multistage and mercerizing diluting alkali recovery system |
| CN110013680A (en) * | 2019-04-23 | 2019-07-16 | 四川汇宇生物技术有限公司 | A kind of gelatin evaporation heat recycle device |
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