CN106006776B - A kind of hydrate sewage water treatment method and device - Google Patents

Abstract

The invention discloses a kind of hydrate sewage water treatment method and devices, belong to Environmental Science and Engineering field.The present invention completes a kind of novel, economically viable sewage-treatment plant using hydrate processing sewage.The heating and thermal insulation of reaction kettle controls temperature using the heating refrigeration convection current form of high/low temperature insulating box air bath in the device, and reaction kettle can be maintained to work under high/low temperature condition.Piston rod design have piston extraction tube, it is ensured that in the autoclave body after reaction it is untreated fall sewage can by piston extraction tube squeeze out autoclave body outside.Mixer design has magnetic agitation mechanism, can accelerate reaction speed, and analog flow regime, and reaction medium is made to be in flowing rollover states.Hydrate generation situation after device internal-response refrigeration can use camera system and is shown on computer terminal by route.The configuration of the present invention is simple, easy to process and manufacture, design structure is compact, can reuse, and experimentation is convenient and simple for operation to be applicable in.

Description

A kind of hydrate sewage water treatment method and device

Technical field

The present invention relates to a kind of hydrate sewage water treatment method and devices, belong to Environmental Science and Engineering field.

Background technique

China is the country that a water resource lacks, and regional water shortages many in recent years are gradually aggravated.At the same time, I State's quantity of wastewater effluent increases year by year, and for 1997, total amount of sewage discharge is 416 billion cubic meters, chemical oxygen demand in sewage (COD_Cr) 17,570,000 tons of discharge amount, and centralized treatment rate is only 10% or so.Large amount of sewage is unprocessed or without being effectively treated It is discharged, as a result, on the one hand polluted environment, especially water environment, on the other hand exacerbates the shortage of water resource. Current sewage disposal technology mainly has chemical precipitation method, electrochemical process, absorption method, ion-exchange and membrane separation process.Wherein Chemical precipitation method can only remove precipitating pollutant easy to form, and secondary pollution caused by the addition there are chemicals and a large amount of The shortcomings that sludge generates；Electrochemical method requires the continuous consumption of electrode material, and electrode is easily passivated, and operating cost is high；It inhales Adsorbent amount is huge in attached method, at high cost, and adsorbent is difficult to restore；Membrane separation process is more demanding for sewage quality, for Property it is stronger, operating cost is high.For in a word, existing sewage disposal technology is removed only for certain pollutant, for water Matter is more demanding, and applicability is poor.It can be said that fund and technology have become the two big principal elements for restricting wastewater treatment in China. Therefore, it is necessary to find a kind of capital expenditure is few, operating cost is low, occupied area is small, it is convenient for management, be suitble to China's national situation New Technology about Wastewater Treatment can enable sewage be effectively treated and make its appropriate reuse.

The huge concern of various countries, the application technology based on hydrate has been obtained as a kind of clean energy resource in hydrate Also gradually develop.On the other hand, drilling prospection shows that chlorine cellulose content exception occurs in sea bottom hydrate preservation area, this shows to be hydrated The saluretic effect that object generates, meanwhile, molecular dynamics simulation shows that non-guest molecule not can enter hydrate structure.These are all Hydrate sewage treatment provides theoretical basis.

Summary of the invention

In order to overcome the shortcomings of existing sewage disposal technology, the present invention provides a kind of hydrate sewage water treatment method and dress It sets.The principle of the present invention is under the conditions of certain temperature and pressure, and the unique cagelike structure of hydrate is only in conjunction with being capable of shape At the guest molecule and pure water of hydrate, and guest molecule is excluded except hydrate structure, is generated completely in hydrate Later, it is separated by solid-liquid separation to obtain clean water conjunction object using effective means, hydrate decomposes can be obtained at normal temperatures and pressures Pure water.And hydrating agents can recycle, and save raw material, energy consumption is lower, economic and environment-friendly.

Technical solution of the present invention:

A kind of hydrate sewage-treatment plant, including reaction kettle, temperature control system, camera system, piston push system System, piston system, reactant add-on system and computer data acquisition system；

The reaction kettle is based on the rectangular autoclave body of middle section, and upper part and lower part are respectively with upper cover and lower envelope Head sealing；Rectangular autoclave body is equipped with sapphire circle form, is fixed on by round form gland and form knife edge rectangular On autoclave body side wall.

The temperature control system is high temperature cryostat, interior to be equipped with heating system and refrigeration system, heating system Using electrothermal tube heated for controlling temperature, refrigeration system uses cold wind mechanism cold temperature control；Reaction kettle is placed in high/low temperature insulating box.

Camera system cold light source irradiates sapphire form, passes through sapphire form Online- Cam using video camera Hydrate after observing response kettle internal-response refrigeration generates situation.

The piston moving system is cooperated by manually-actuated metering pump and throttle valve, pushes liquid to inject reaction kettle in piston, Fluid pressure type pulling piston moves up and down, and piston seal is equipped between piston and reaction kettle inner sidewall, prevents piston from pushing liquid and anti- Object is answered to mix；Piston compresses pressure cap and flange connects AC servo motor outside reaction kettle by internal, AC servo motor by The control of AC Servo Motor Control device.

The piston system is placed in reaction kettle cavity by lower head, and internal piston is equipped with active magnet, piston top Portion is equipped with driven magnet, installs elastomeric composition formula agitating paddle on driven magnet, magnetic agitation mechanism around inner rotary shaft Stirring, Active magnet rotors drive driven magnet rotation, and then drive the rotation of elastomeric composition formula agitating paddle；Driven magnet is mounted on magnet It clamps on rotary body；Elastomeric composition formula agitating paddle is arranged on piston, with piston motion；Stainless steel filter plate is mounted on magnet It clamps under rotary body, hydrate and liquid is separated；Remaining liq after reaction draws connection tube by fluid and imports piston Extraction tube is discharged into remaining sewage acceptance apptss.

The reactant add-on system composition connection is as follows: hydrating agents storage tank and sewage storage tank are sequentially connected with constant flow pump And throttle valve, the hole that two throttle valves pass through upper cover are communicated with rectangular autoclave body, and hydrating agents and sewage are injected into rectangular autoclave body.

The data collection system passes through temperature sensor, pressure sensor, video camera and conductivity meter, acquisition temperature Degree, pressure, image and conductivity signal, the data of computer acquisition, which are handled, produces initial data report, analytical statement with And curve graph.

Beneficial effects of the present invention:

(1) realize the purpose of high-efficiency sewage processing: hydrating agents react in kettle with sewage generates hydrate, and dirt may be implemented Water warfare.

(2) Online- Cam system is used, the hydrate after internal-response refrigeration can be observed with Online- Cam generates situation, depending on Window uses sapphire, is able to satisfy pressure requirements, and transparency is good, on observation without influence.

(3) heating and thermal insulation of reaction kettle controls temperature using the heating refrigeration convection current form of high/low temperature insulating box air bath Degree, temperature control is accurate, and reaction kettle can be maintained to work under high/low temperature condition.

(4) piston rod design have fluid channel, it is ensured that in the autoclave body after reaction it is untreated fall sewage can pass through piston It is upward, and squeezed out outside autoclave body out of channel.

(5) mixer design has magnetic agitation mechanism, can accelerate reaction speed, and analog flow regime, and reaction is made to be situated between Matter is in flowing rollover states.

(6) structure is simple, and easy to process and manufacture, design structure is compact, can reuse, experimentation is easy to operate, It is simple to be applicable in.

Detailed description of the invention

Fig. 1 is hydrate sewage-treatment plant system diagram of the invention.

Fig. 2 is reaction kettle structural schematic diagram in hydrate sewage-treatment plant of the invention.

In figure: 1 high/low temperature insulating box；2 temperature sensors；3 computers；4 video cameras；5 reaction kettles；6 manually-actuated metering pumps；7 Servomotor controller；8 remaining sewage acceptance apptss；9 sewage storage tanks；10 hydrating agents storage tanks；11 constant flow pumps；12 cold light sources；13 sections Flow valve；14 pressure sensors；15 conductivity meters；16 rectangular autoclave bodies；17 form knife edges；18 round form glands；19 elasticity Combined stirring paddle；20 sapphire forms；21 piston seals；22 fluids draw connection tube；23 inner rotary shafts；24 pistons are drawn Casing；25 lower heads；26 AC servo motors；27 flanges；28 inside compress pressure cap；29 active magnet；30 pistons；31 stainless steels Filter plate；32 driven magnets；33 magnet clamp rotary body；34 upper covers.

Specific embodiment

Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.

Embodiment

A kind of hydrate sewage water treatment method, steps are as follows:

Step 1: open computer data acquisition system, setting high temperature cryostat temperature be hydrate phase balance with Lower temperature；

Step 2: opening the constant flow pump and throttle valve connecting with sewage storage tank, sewage is passed through into reaction kettle, and observe pressure Force snesor pressure reading；

Tank connected constant flow pump and throttle valve are stored up with hydrating agents step 3: opening, hydrating agents are passed through into reaction kettle, and see Examine pressure sensor pressure reading；

Step 4: opening AC servomotor, piston up-down is driven by motor, while using on piston Magnetic agitation mechanism accelerates reaction；

Step 5: the temperature of high/low temperature insulating box is arranged according to the phase balance condition of sewage quality situation and hydrating agents, lead to Constant flow pump control reacting kettle inner pressure is crossed, guarantee reflection temperature in the kettle and pressure condition are under hydrate phase balance, hydrate Start to generate, generates situation using hydrate in camera system observing response kettle；

Step 6: after hydrate generates completely, then AC servomotor is opened, it is upward by motor band piston It squeezes, passes through the piston extraction tube on piston rod, it is ensured that remaining sewage is squeezed out of piston extraction tube in the autoclave body after reaction Out outside autoclave body, guarantee sewage treating efficiency；Remaining sewage acceptance apptss reception is placed at remaining outlet of sewer to flow out of piston The sewage not stirred out；

Step 7: decomposing hydrate at normal temperatures and pressures, pure water is obtained；

Step 8: generating initial data report, analytical statement and curve graph in terminal processing, while generating number According to library file format.

Claims (2)

1. a kind of hydrate sewage-treatment plant, which is characterized in that the hydrate sewage-treatment plant includes reaction kettle, temperature Spend control system, camera system, piston moving system, piston system, reactant add-on system and computer data acquisition system；

For the reaction kettle based on the rectangular autoclave body of middle section, upper part and lower part are close with upper cover and lower head respectively Envelope；Rectangular autoclave body is equipped with sapphire circle form, is fixed on rectangular autoclave body by round form gland and form knife edge On side wall；

The temperature control system is high temperature cryostat, interior to be equipped with heating system and refrigeration system, and heating system uses Electrothermal tube heated for controlling temperature, refrigeration system use cold wind mechanism cold temperature control；Reaction kettle is placed in high/low temperature insulating box；

Camera system cold light source irradiates sapphire form, is observed using video camera by sapphire form Online- Cam Hydrate after reaction kettle internal-response refrigeration generates situation；

The piston moving system is cooperated by manually-actuated metering pump and throttle valve, pushes liquid to inject reaction kettle in piston, hydraulic Formula pushes piston up-down, and piston seal is equipped between piston and reaction kettle inner sidewall, prevents piston from pushing liquid and reactant Mixing；Piston connects AC servo motor by internal compression pressure cap and flange outside reaction kettle, and AC servo motor is by exchanging Servomotor controller control；

The piston system is placed in reaction kettle cavity by lower head, and internal piston is equipped with active magnet, and top land is set There is driven magnet, elastomeric composition formula agitating paddle is installed, magnetic agitation mechanism is around inner rotary shaft Stirring, actively on driven magnet Magnet rotors drive driven magnet rotation, and then drive the rotation of elastomeric composition formula agitating paddle；Driven magnet is mounted on magnet clamping On rotary body；Elastomeric composition formula agitating paddle is arranged in piston upper end, with piston up-down；Stainless steel filter plate is mounted on magnetic Iron clamp is held under rotary body, and hydrate and liquid are separated；Stainless steel filter plate has fluid and draws connection tube, and fluid is drawn Connection tube is connected with piston extraction tube, and the remaining liq after reaction is drawn connection tube and imported piston and drawn by fluid to be covered Pipe, is discharged into remaining sewage acceptance apptss；

The reactant add-on system composition connection is as follows: hydrating agents storage tank and sewage storage tank are sequentially connected with constant flow pump and section Valve is flowed, the hole that two throttle valves pass through upper cover is communicated with rectangular autoclave body, and hydrating agents and sewage are injected into rectangular autoclave body；Described Computer data acquisition system passes through temperature sensor, pressure sensor, video camera and conductivity meter, temperature collection, pressure, figure Picture and conductivity signal generate initial data report, analytical statement and curve graph through processing.

2. using a kind of hydrate sewage water treatment method of hydrate sewage-treatment plant described in claim 1, feature It is, steps are as follows:

Step 1: opening computer data acquisition system, setting high temperature cryostat temperature is hydrate phase balance or less temperature Degree；

Step 2: opening the constant flow pump and throttle valve connecting with sewage storage tank, it is passed through sewage into reaction kettle, and observes pressure biography Sensor pressure reading；

Tank connected constant flow pump and throttle valve are stored up with hydrating agents step 3: opening, hydrating agents are passed through into reaction kettle, and observe pressure Force snesor pressure reading；

Step 4: opening AC servomotor, piston up-down is driven by motor, while utilizing the magnetic force on piston Rabbling mechanism accelerates reaction；

Step 5: the temperature of high/low temperature insulating box is arranged, passes through perseverance according to the phase balance condition of sewage quality situation and hydrating agents Stream pump control reacting kettle inner pressure, guarantees reflection temperature in the kettle and pressure condition under hydrate phase balance, hydrate starts It generates, generates situation using hydrate in camera system observing response kettle；

Step 6: after hydrate generates completely, then AC servomotor is opened, it is squeezed upwards by motor band piston Pressure, passes through the piston extraction tube on piston rod, it is ensured that remaining sewage is squeezed out out of piston extraction tube in the autoclave body after reaction Outside autoclave body, guarantee sewage treating efficiency；Remaining sewage acceptance apptss reception is placed at remaining outlet of sewer to flow out out of piston The sewage not stirred；

Step 7: decomposing hydrate at normal temperatures and pressures, pure water is obtained；

Step 8: generating initial data report, analytical statement and curve graph in terminal processing, while generating database File format.