CN110384944A - Spent acid evaporation concentration equipment and waste acid treatment method - Google Patents
Spent acid evaporation concentration equipment and waste acid treatment method Download PDFInfo
- Publication number
- CN110384944A CN110384944A CN201910800040.7A CN201910800040A CN110384944A CN 110384944 A CN110384944 A CN 110384944A CN 201910800040 A CN201910800040 A CN 201910800040A CN 110384944 A CN110384944 A CN 110384944A
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- heat exchanger
- graphite
- spent acid
- evaporation concentration
- concentration equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Spent acid evaporation concentration equipment and waste acid treatment method, including heating unit, heating unit include graphite pre-add air-heater, the graphite heat exchanger that air duct is serially connected；Graphite pre-add air-heater includes Blower Housing, is equipped with rotating member in the blower inner cavity of Blower Housing, Blower Housing offers the first air port and the second air port, and Blower Housing and rotating member material are impregnated graphite material；Graphite heat exchanger includes the finned heat exchanger of heat exchanger shell and setting in the housing, heat exchanger shell is equipped with air inlet and air outlet, finned heat exchanger includes heat exchanger tube and several fins, several fins are arranged on heat exchanger tube, and heat exchanger shell and finned heat exchanger are impregnated graphite material.Beneficial effect is: there is better resistance to corrosion using graphite material, it is especially anticorrosive to chloride ion (hydrochloric acid and chloride liquid), and improve the applicable scene of equipment；Using the graphite equipment of one, there is better heat exchange efficiency.
Description
Technical field
The invention belongs to secondary steam (including flue gas) technical field more particularly to a kind of spent acid evaporation concentration equipments.
Background technique
As environmental consciousness enhances, present enterprise in process of production, can all be handled emission.
Present some equipment cannot the steam preferably to acid high corrosion handle, such as some vapour compression machines
Deng being all that can not solve acid vapors corrosion problem using metal material.
Meanwhile considering the economy (U=W/D) of steam in multiple-effect evaporation, single-action 0.91, economic benefits and social benefits 1.76, triple effect is
2.5, quadruple effect 3.33, five effects are 3.71 etc..It can be seen that the growth rate of W/D is gradually reduced with the increase of effect number, but invest at
Originally it ramps.
For example, heating steam can about save 50% when being changed to economic benefits and social benefits by single-action；And quadruple effect is when being changed to five effects, heating is steamed
Vapour only saves 10%.
But with the increase of effect number, the temperature difference loss of heat transfer increases so that the production intensity of evaporator significantly under
Drop, cost of equipment are multiplied.After imitating number increase (triple effect) to a certain extent, due to increasing the steam expense imitating number and saving
Compared with the installation cost increased, it may lose more than gain.
Summary of the invention
To solve the above-mentioned problems, the present invention adopts the following technical scheme:
Spent acid evaporation concentration equipment, including heating unit, the heating unit include the graphite pre-add that air flue is serially connected
Air-heater, graphite heat exchanger；
The graphite pre-add air-heater includes Blower Housing, and rotating member, institute are equipped in the blower inner cavity of the Blower Housing
It states Blower Housing and offers the first port and the second port,
The Blower Housing and rotating member material are impregnated graphite material；
The graphite heat exchanger includes the finned heat exchanger of heat exchanger shell and setting in the housing,
The heat exchanger shell is equipped with air inlet and air outlet,
The finned heat exchanger includes heat exchanger tube and several fins, and several fins are arranged in the heat exchanger tube
On,
The heat exchanger shell and finned heat exchanger are impregnated graphite material.
Preferably, the rotating member includes rotation axis and blade.
Preferably, there are two the rotating member is set, two rotating member rotation directions are opposite.
Preferably, the rotation axis both ends are rotatably arranged on the first baffle and second baffle of Blower Housing respectively.
Preferably, the heat exchanger shell both ends are respectively equipped with baffle plate, and the baffle plate is equipped with baffling slot；
The heat exchanger tube is connected to baffling slot；
Media material is equipped in two baffle plates and heat exchanger tube.
Preferably, the baffle plate is equipped with media material mouth.
Preferably, the baffle plate is set to the tube sheet of the heat exchanger shell.
Preferably, the vapor space is formed between the finned heat exchanger and the heat exchanger shell inner wall.
Preferably, the air inlet of the vapor space is connect with second port.
Preferably, first port is connected to 1st effective evaporator, and the gas outlet is connected to two effect heaters.
Application of the spent acid evaporation concentration equipment in spent acid Secondary-steam heating.
Secondary steam heat content based on spent acid evaporation concentration equipment enhances recycling technique,
Material, which flows through an effect heater, which carries out steam-water separation into an effect evaporator after steam heating evaporation, to separate
Liquid and secondary steam；
Separating liquid a part circulating and evaporating between an effect heater and an effect evaporator, another part are delivered to the heating of two effects
Device,
Secondary steam carries out compression by graphite pre-add air-heater and mentions enthalpy, then is delivered to graphite heat exchanger,
It is heated up by graphite heat exchanger to secondary steam, enters 2nd effect evaporator after secondary steam heating.
The beneficial effects of the present invention are:
1. there is better resistance to corrosion using graphite material, it is especially anti-to chloride ion (hydrochloric acid and chloride liquid)
Corrosion, improves the applicable scene of equipment；
2. the contact area of steam and heat-exchange carrier is greatly improved using fin, to improve the heat exchange effect of equipment
Rate；
3. being conveyed, being compressed to gas by Roots's preheating fan, tentatively heat up after making gas compression, is then passing through
Graphite heat exchanger heating, improves heating efficiency, has saved the energy；
4. continuing because " heating of the acidic twice steam " measure of using, may be implemented secondary steam temperature and greatly improve
And circulation can be continued, applied repeatedly.
Detailed description of the invention
Fig. 1 is a kind of application scenarios relation of equipment of use environment of the present invention；
Fig. 2 is graphite pre-add air-heater schematic perspective view of the present invention；
Fig. 3 is a kind of structural relation schematic diagram of graphite pre-add air-heater of the present invention；
Fig. 4 is graphite heat exchanger structural relation schematic diagram of the present invention；
Fig. 5 is two baffle plate the schematic diagram of the section structure in one embodiment of the present invention；
Fig. 6 is fin type heat exchanger structure schematic diagram of the present invention；
Fig. 7 is that one kind of the present invention makes particular condition in use artwork.
In figure:
100 heating units, 10 graphite pre-add air-heaters, 11 Blower Housings, 12 blower inner cavities, 13 rotating members, 14 first gas
Mouthful, 15 second ports, 30 graphite heat exchangers, 31 heat exchanger shells, 32 finned heat exchangers, 321 heat exchanger tubes, 322 fins,
Specific embodiment
Invention is further explained with reference to the accompanying drawing:
As shown in fig. 1, spent acid evaporation concentration equipment, including heating unit 100, heating unit 100 are mainly used for cigarette
Gas is heated.
The heating unit 100 includes graphite pre-add air-heater 10, the graphite heat exchanger 30 that air flue is serially connected；Wherein gas
Road is exactly for allowing the channel of flow of flue gas；
As shown in Fig. 2,3, the graphite pre-add air-heater 10 includes Blower Housing 11, the blower of the Blower Housing 11
Rotating member 13 is equipped in inner cavity 12, the Blower Housing 11 offers the first port 14 and the second port 15, and a kind of mode is stone
The structure of black pre-add air-heater 10 is identical as roots blower,
The air flue of graphite preheating fan 10 is formed from first the second port of port 14- blower inner cavity 12- 15；
The rotating member 13 includes rotation axis 132 and blade 131.
A kind of mode is there are two the rotating member 13 is set, and two 13 rotation directions of rotating member are opposite；
When rotating member 13 rotates, the fan blade of rotating member 13 is by gas compression, when gas compresses in blower inner cavity 12
When, molecular motion accelerates, and further gas temperature increases；
The Blower Housing 11 and 13 material of rotating member are impregnated graphite material；
It is whole to be had preferably using impregnated graphite material relative to the equipment of the metal bonding graphite generallyd use now
Resistance to corrosion.
Graphite pre-add air-heater 10, by mechanical movement, forces steam to be compressed, so that II vapor (steam) temperature is improved,
Realize the recycling of II steam.
10-25 DEG C can be improved under normal circumstances, and it is more to improve the higher power consumption of temperature.
As shown in figure 4, the graphite heat exchanger 30 includes the fin type heat exchange of heat exchanger shell 31 and setting in the housing
Device 32 forms the vapor space 33 between 31 inner wall of the finned heat exchanger 32 and the heat exchanger shell；
The heat exchanger shell 31 is equipped with air inlet and air outlet, and air inlet and air outlet are arranged in heat exchanger shell 31
On, air inlet and air outlet are generally located on shell position apart from each other, give gas longer stop distance, improve heat exchange
Efficiency.
The finned heat exchanger 32 includes heat exchanger tube 321 and several fins 322, and several settings of fin 322 exist
On the heat exchanger tube 321, and it is integrated；
The baffle plate 311 is set to the tube sheet 34 of the heat exchanger shell 31.
Media material is equipped in two baffle plates 311 and heat exchanger tube 32.
The heat exchanger shell 31 and finned heat exchanger 32 are impregnated graphite material.
132 both ends of rotation axis are rotatably arranged on the first baffle 111 and second baffle 112 of Blower Housing 11 respectively.
31 both ends of heat exchanger shell are respectively equipped with baffle plate 311, and the baffle plate 311 is equipped with baffling slot 312, folding
Flowing plate 311 can accommodate more conduction oils, to realize when equipment volume is identical, store more conduction oils；
Meanwhile baffling slot 312 is set inside baffle plate 311 and also increases the contact area of baffle plate 311 and conduction oil, energy
It is enough to accelerate heat exchange, to can also be heated heat exchanging device shell 31 to a certain extent；
The heat exchanger tube 321 is connected to baffling slot 312, and conduction oil is able to enter inside heat exchanger tube 321；
When in use, spent acid steam enters the vapor space 33 from air inlet, and conduction oil enters the baffle plate 311 of one end
In baffling slot 312, other end baffle plate 311 is reached then along heat exchanger tube 321；
Conduction oil and 321 heat exchange of heat exchanger tube in heat exchanger tube 321, then heat exchanger tube 321 passes through outer wall and fin type heat exchange
32 with the heat exchange of spent acid steam, meanwhile, conduction oil in baffle plate 311 but also 31 temperature of heat exchanger shell increase, thus spent acid
Steam also can obtain thermal energy from heat exchanger shell 31.
A kind of usage mode of the invention, in conjunction with shown in Fig. 1,
The air inlet of the vapor space 33 is connect with second port 15, and graphite pre-add air-heater 10 is by the one of preamble
Gas, that is, secondary steam that evaporator comes out is imitated, compression conveying is rotated from 14 inspiration of the first port, then by fan blade, from second
Port 15 is discharged, and then secondary steam or exhaust gas enter from 30 air inlet of graphite heat exchanger and enters the vapor space 33, after heating from
Gas outlet enters next effect heater, and so circulation is repeatedly recycled, and reaches and operating cost is greatly reduced.
A kind of process flow explanation that this art inventions is related to:
1. material flows through an effect heater E01 enters an effect evaporator V01 progress carbonated drink point after steam heating evaporation
From；
2. separating liquid is sent into more circulating and evaporatings of E01 by P01 a part, another part is quantitatively controlled defeated by flowmeter
It send to two effect vapo(u)rization systems；
3, secondary steam is delivered to steam heater E02 by roots blower P02, is heated by Heat-conduction oil circulation system,
2nd effect evaporator E03 is sent into after improving secondary steam temperature.
In this technique, air compression preheating equipment and acid resistance secondary steam (or flue gas) heating equipment have been increased newly；
Can be preferable energy saving, improve heating efficiency；
Secondary steam is reached into overheat by heating, heat content is improved to enter next effect and continue with, makes full use of steam
Latent heat energy reaches Repeat-heating secondary steam, realizes that the multiple multiple-effect evaporation of secondary steam utilizes, more passes through to reduce energy consumption
Ji operation.
In exhaust gas treatment technology, needing to use a large amount of vapor, one ton of steam market price is usually 220 yuan, and once
Electricity is that 0.2-1.0 member does not wait (peak and low ebb difference, different regions difference)；
Relative to existing way, one ton of water of every evaporation can save 180 yuan or so.
It should be noted that in the description of the present invention, it is to be understood that, term " center ", " transverse direction ", " longitudinal direction ",
The orientation of the instructions such as "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limiting the scope of the invention.
Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design
To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention
It is subject to claims appended hereto.
Claims (10)
1. spent acid evaporation concentration equipment, including heating unit (100), it is characterised in that: the heating unit (100) includes air flue
Graphite pre-add air-heater (10), the graphite heat exchanger (30) being serially connected；
The graphite pre-add air-heater (10) includes Blower Housing (11), is set in the blower inner cavity (12) of the Blower Housing (11)
Having rotating member (13), the Blower Housing (11) offers the first port (14) and the second port (15),
The Blower Housing (10) and rotating member (13) material are impregnated graphite material；
The graphite heat exchanger (30) includes the finned heat exchanger (32) of heat exchanger shell (31) and setting in the housing,
The heat exchanger shell (31) is equipped with air inlet and air outlet,
The finned heat exchanger (32) includes heat exchanger tube (321) and several fins (322), and several fins (322) set
It sets on the heat exchanger tube (321),
The heat exchanger shell (31) and finned heat exchanger (32) are impregnated graphite material.
2. spent acid evaporation concentration equipment according to claim 1, it is characterised in that: the rotating member (13) includes rotation axis
(132) and blade (131).
3. spent acid evaporation concentration equipment according to claim 2, it is characterised in that: there are two the rotating member (13) sets,
Two rotating member (13) rotation directions are opposite；
Rotation axis (132) both ends are rotatably arranged on the first baffle (111) and second baffle of Blower Housing (11) respectively
(112)。
4. spent acid evaporation concentration equipment according to claim 1, it is characterised in that: heat exchanger shell (31) both ends point
Not She You baffle plate (311), the baffle plate (311) be equipped with baffling slot (312)；
The heat exchanger tube (321) is connected to baffling slot (312)；
Media material is equipped in two baffle plates (311) and heat exchanger tube (32).
5. spent acid evaporation concentration equipment according to claim 4, it is characterised in that: the baffle plate (311) is set to institute
State the tube sheet (34) of heat exchanger shell (31)；
The baffle plate (311) is equipped with media material mouth (314).
6. spent acid evaporation concentration equipment according to claim 1, it is characterised in that: the finned heat exchanger (32) and institute
State the formation vapor space (33) between heat exchanger shell (31) inner wall.
7. spent acid evaporation concentration equipment according to claim 6, it is characterised in that: the air inlet of the vapor space (33)
It is connect with second port (15).
8. spent acid evaporation concentration equipment according to claim 1, it is characterised in that: first port (14) is connected to one
Evaporator is imitated, the gas outlet is connected to two effect heaters.
9. application of any spent acid evaporation concentration equipment of claim 1-8 in spent acid Secondary-steam heating.
10. a kind of secondary steam heat content based on spent acid evaporation concentration equipment described in claim 1-8 enhances recycling technique,
Material, which flows through to enter an effect evaporator after an effect heater heating evaporation and carry out steam-water separation, obtains separating liquid and secondary steam；
Separating liquid a part circulating and evaporating between an effect heater and an effect evaporator, another part are delivered to two effect heaters,
Secondary steam carries out compression by graphite pre-add air-heater (10) and mentions enthalpy, then is delivered to graphite heat exchanger (30),
It is heated up by graphite heat exchanger (30) to secondary steam, enters 2nd effect evaporator after secondary steam heating.
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| CN201910800040.7A CN110384944B (en) | 2019-08-28 | 2019-08-28 | Waste acid evaporation concentration equipment and waste acid treatment method |
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|---|---|---|---|
| CN201910800040.7A CN110384944B (en) | 2019-08-28 | 2019-08-28 | Waste acid evaporation concentration equipment and waste acid treatment method |
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| CN207175514U (en) * | 2017-08-30 | 2018-04-03 | 深圳市和科达水处理设备有限公司 | Stage evaporation wastewater treatment equipment |
| CN107560463A (en) * | 2017-09-05 | 2018-01-09 | 南通山剑石墨设备有限公司 | A kind of tube-type graphite heat exchanger for powder heating |
| CN107673433A (en) * | 2017-11-13 | 2018-02-09 | 广东港荣水务科技有限公司 | A kind of sewage disposal device of high-efficient energy-saving environment friendly |
| CN207845198U (en) * | 2018-01-08 | 2018-09-11 | 山东特保罗环保节能科技有限公司 | A kind of high-salt wastewater evaporation crystallization equipment |
| CN108147608A (en) * | 2018-03-07 | 2018-06-12 | 华北电力大学（保定） | It is a kind of to utilize compressed air and the multiple-effect evaporation crystal system and method for heat pump treatment of Power brine waste |
| CN108773869A (en) * | 2018-05-15 | 2018-11-09 | 大连理工大学 | A kind of low-temperature multi-effect is concentrated by evaporation the processing system and its processing method of high-salt wastewater |
| CN209143744U (en) * | 2018-11-21 | 2019-07-23 | 华鼎国联四川电池材料有限公司 | Anode material for lithium-ion batteries production wastewater treatment mechanism |
| CN109534584A (en) * | 2019-01-15 | 2019-03-29 | 合盛硅业（泸州）有限公司 | A kind of organic silicon wastewater processing system and method |
| CN109939454A (en) * | 2019-04-29 | 2019-06-28 | 邢淑辉 | A kind of heat pump vacuum concentration system |
| CN210874158U (en) * | 2019-08-28 | 2020-06-30 | 南通晨光石墨设备有限公司 | Waste acid evaporation and concentration equipment |
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