阅读说明：本技术 一种以煤、有机物为原料的废水、污泥处理系统及方法 (It is a kind of using coal, organic matter as the waste water of raw material, sludge treating system and method ) 是由 王冰 郭仕鹏 于 2019-07-31 设计创作，主要内容包括：本发明涉及一种以煤、有机物为原料的废水、污泥处理系统,其包括：煤有机物混合物料预处理单元；液体增压单元；氧气供应单元；超临界水氧化反应单元：包括超临界水氧化反应器,超临界水氧化反应器的液体入口连接所述煤有机物混合物料预处理单元的煤有机物混合液体出口,所述第一氧气入口与液体入口汇合后连通至超临界水氧化反应器内,所述第二氧气入口与废水/污泥入口汇合后连通至超临界水氧化反应器内；蒸发结晶单元；热量回用单元；气液分离单元；余热利用单元。本发明的以煤、有机物为原料的废水、污泥处理系统及工艺适用范围广、高效率、零污染排放、可同时实现能源和资源回收,特别适用于工业污水、污泥、高浓度有机废水及危废处理。(The present invention relates to a kind of using coal, organic matter as the waste water of raw material, sludge treating system comprising: coal organic admixture material pretreatment unit；Fluid pressurization unit；Oxygen supply unit；Supercritical water oxidation unit: including overcritical water oxidization reactor, the liquid inlet of overcritical water oxidization reactor connects the coal organic matter mixing liquid outlet of the coal organic admixture material pretreatment unit, first oxygen intake and liquid inlet are connected in overcritical water oxidization reactor after converging, and second oxygen intake is connected in overcritical water oxidization reactor after converging with waste water/sludge inlet；Evaporative crystallization unit；Heat reuse unit；Gas-liquid separation unit；UTILIZATION OF VESIDUAL HEAT IN unit.It is of the invention using coal, organic matter as the waste water of raw material, sludge treating system and technique are applied widely, high efficiency, no pollution discharge, the energy and resource reclaim can be achieved at the same time, especially suitable for the processing of trade effluent, sludge, high concentrated organic wastewater and dangerous waste.)

1. a kind of using coal, organic matter as the waste water of raw material, sludge treating system, it is characterised in that: include:

1) coal organic admixture material pretreatment unit: including coal crushing grinding device, modifying device, modifying device setting coal has The outlet of machine object mixing liquid；

2) fluid pressurization unit: including coal mixing liquid compress cell and waste water/sludge compress cell；The pressurization of coal mixing liquid is single Member includes the first booster pump, heat exchanger and electric heater, and waste water/sludge compress cell includes the second booster pump；

3) oxygen supply unit: including sequentially connected liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen surge tank；

4) supercritical water oxidation unit: including overcritical water oxidization reactor, the first oxygen of overcritical water oxidization reactor Gas entrance, the second oxygen intake connect the oxygen surge tank oxygen outlet of the oxygen supply unit；Supercritical water oxidation Waste water/sludge inlet of device connects the second booster pump of the fluid pressurization unit；The liquid of overcritical water oxidization reactor enters Mouthful connect the coal organic matter mixing liquid outlet of the coal organic admixture material pretreatment unit, first oxygen intake with Liquid inlet is connected in overcritical water oxidization reactor after converging, and second oxygen intake converges with waste water/sludge inlet After be connected in overcritical water oxidization reactor；

5) evaporative crystallization unit: including bottom surge tank and multi-stage evaporator；

6) heat reuse unit: the hot fluid that the high-temperature steam outlet of overcritical water oxidization reactor connects the heat exchanger enters Mouthful；

7) gas-liquid separation unit: including gas-liquid separator, the hot fluid outlet ports of the heat exchanger connect gas-liquid separator；

8) UTILIZATION OF VESIDUAL HEAT IN unit: the steam (vapor) outlet of gas-liquid separation unit connects steam reclamation set.

2. a kind of using coal, organic matter as the waste water of raw material, method for sludge treatment, characterized by the following steps:

1) material pre-processes: will pass through after mixing that weight fraction ratio is the coal of 5-10:10-20:70-85, organic matter, highly concentrated waste liquid Cross broken, grinding, the coal organic matter mixing liquid that quenched rear formation is uniformly mixed；

2) liquid pressure increasing heat-exchanging: after pretreated coal organic matter mixing liquid is supercharged to 22-30Mpa by the first booster pump It is delivered to heat exchanger, waste water/sludge is delivered to supercritical water oxidation after being supercharged to 22-30Mpa by the second booster pump Device；

3) electric heating: before supercritical water oxidation igniting, heating coal organic matter mixing liquid using electric heater, Electric heater stops heating after stable reaction；

4) oxygen supply: liquid oxygen is after liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen surge tank are sequentially connected in series and super The first oxygen intake, the second oxygen intake of critical oxidation reactor are connected, and the first oxygen intake flow and coal organic matter are mixed Conjunction fluid flow is chain, and the second oxygen intake flow and waste water/mud discharge are chain, guarantees that oxygen supply amount is mixed for coal organic matter Close liquid, 1-3 times that waste water/sludge material complete oxidation is CO2 and water oxygen demand；

5) supercritical water oxidation: using the evaporation wall type overcritical water oxidization reactor of multilayer torch firing structure burner, first The oxygen and coal organic matter mixing liquid of oxygen intake are sprayed from internal layer, first the fast reaction shape in overcritical water oxidization reactor At supercritical water hot flame, while the oxygen of the second oxygen intake and waste water/sludge are sprayed into from outer layer, are held in supercritical water hot flame Continue quick oxidation reaction；

6) evaporative crystallization: the high-temp liquid of the bottom discharge of overcritical water oxidization reactor is gasified by partially liq after decompression, Remaining dope carries out multistage evaporation using gasification steam, and salt is finally discharged in the form of solid salt；

7) exchange heat: the thermal fluid inlet of the high-temperature steam outlet connection heat exchanger of overcritical water oxidization reactor, utilization are overcritical 400-500 DEG C of high-temperature steam of water oxidation reaction output carries out the heating of coal/organic matter mixing liquid, to guarantee entire reaction From progress is maintained, the cold fluid outlet temperature of heat exchanger is controlled at 200-300 DEG C；

8) gas-liquid separation: the high-temperature steam that overcritical water oxidization reactor comes out forms gas-liquid two-phase fluid after heat exchange, should Gas-liquid two-phase fluid passes through the available steam of gas-liquid separator and hot water, can carry out UTILIZATION OF VESIDUAL HEAT IN；

9) UTILIZATION OF VESIDUAL HEAT IN: according to the quality of steam and quantity of output, can carry out generating electricity/for heat utilization.

3. according to claim 2 using coal, organic matter as the waste water of raw material, method for sludge treatment, it is characterised in that: described to have Machine object is one or more kinds of combinations of biomass, petroleum, organic solution or organic solvent.

4. according to claim 2 using coal, organic matter as the waste water of raw material, method for sludge treatment, it is characterised in that: described pre- The coal for coal organic matter mixing liquid that treated and the mass content of organic matter are 2%-75%.

5. according to claim 2 using coal, organic matter as the waste water of raw material, method for sludge treatment, it is characterised in that: described super Critical oxidation reactor is the evaporation wall type reactor of multilayer torch firing structure.

6. according to claim 2 using coal, organic matter as the waste water of raw material, method for sludge treatment, it is characterised in that: described super At 375-600 DEG C, liquid outlet is controlled at 100-350 DEG C for the gas outlet temperature control of critical oxidation reactor.

Technical field

The invention belongs to clean coal utilizations and dangerous waste innoxious, recycling treatment field, it is especially a kind of with coal, it is organic Object is waste water, sludge treating system and the method for raw material.

Background technique

Traditional coal utilization form is mostly aerial normal pressure burning, and this combustion type can not only discharge largely Nitrogen oxides, sulfur oxide gas cause the serious pollution of air, cause serious haze, and the discharge of this combustion type High-temperature gas has carried away a large amount of heat, and capacity usage ratio is low, the stringent control of environment and with the high cost of vent gas treatment at For the appearance for forcing new combustion technology.

Still further aspect, Industrial Waste Water Treatments field highlight minimizing for many years, but cause recycling, recovery energy The missing of technology, a large amount of concentrating spent liquors of generation become dangerous waste without effectively being handled, and what is particularly pointed out here has refining Change waste water, fermentation mother liquor, pesticide waste liquid, pharmacy waste residue dyeing waste water, ability only has discharge amount at the receipts of hazardous waste center at present 20%, 80% or more waste liquid is in arranges edge steathily, and government lacks available processing means to be handled.

Industrial sludge, municipal sludge conventional process mode mainly by dehydration, filled after desiccation, burn.It fills out The disposal options buried not only land occupation, in addition brings the pollution hidden trouble of underground water, has been command by and has forbidden, and the place burned Reason technology can not only consume a large amount of energy, also have air pollution, and processing cost per ton is up to 500 yuan or more.

Therefore, it is necessary to seek a kind of more economical, more environmentally friendly process for comprehensively treating sewage.

Summary of the invention

It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of applied widely, high efficiency, no pollution row It puts, the energy and resource reclaim can be achieved at the same time, especially suitable for the processing of trade effluent, sludge, high concentrated organic wastewater and dangerous waste It is a kind of using coal, organic matter as the waste water of raw material, sewage sludge harmlessness recycling treatment system and technique.

The present invention solves its technical problem and is achieved through the following technical solutions:

It is a kind of using coal, organic matter as the waste water of raw material, sludge treating system, it is characterised in that: include:

1) coal organic admixture material pretreatment unit: including coal crushing grinding device, modifying device, modifying device setting The outlet of coal organic matter mixing liquid；

2) fluid pressurization unit: including coal mixing liquid compress cell and waste water/sludge compress cell；Coal mixing liquid increases Pressing unit includes the first booster pump, heat exchanger and electric heater, and waste water/sludge compress cell includes the second booster pump；

3) oxygen supply unit: including sequentially connected liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen buffering Tank；

4) supercritical water oxidation unit: including overcritical water oxidization reactor, the of overcritical water oxidization reactor One oxygen intake, the second oxygen intake connect the oxygen surge tank oxygen outlet of the oxygen supply unit；Supercritical water oxidation Waste water/sludge inlet of reactor connects the second booster pump of the fluid pressurization unit；The liquid of overcritical water oxidization reactor Body entrance connects the coal organic matter mixing liquid outlet of the coal organic admixture material pretreatment unit, and first oxygen enters Mouth is connected in overcritical water oxidization reactor after converging with liquid inlet, second oxygen intake and waste water/sludge inlet It is connected in overcritical water oxidization reactor after converging；

5) evaporative crystallization unit: including bottom surge tank and multi-stage evaporator；

6) heat reuse unit: the high-temperature steam outlet of overcritical water oxidization reactor connects the hot fluid of the heat exchanger Entrance；

7) gas-liquid separation unit: including gas-liquid separator, the hot fluid outlet ports of the heat exchanger connect gas-liquid separator；

8) UTILIZATION OF VESIDUAL HEAT IN unit: the steam (vapor) outlet of gas-liquid separation unit connects steam reclamation set.

It is a kind of using coal, organic matter as the waste water of raw material, method for sludge treatment comprising following steps:

1) material pre-processes: by the mixing of coal, organic matter, highly concentrated waste liquid that weight fraction ratio is 5-10:10-20:70-85 Afterwards by broken, grinding, it is quenched after form uniformly mixed coal organic matter mixing liquid；

2) liquid pressure increasing heat-exchanging: pretreated coal organic matter mixing liquid is supercharged to 22- by the first booster pump Heat exchanger is delivered to after 30Mpa, waste water/sludge is supercharged to after 22-30Mpa by the second booster pump and is delivered to overcritical water oxygen Change reactor；

3) electric heating: before supercritical water oxidation igniting, coal organic matter mixing liquid is carried out using electric heater It heats, electric heater stops heating after stable reaction；

4) oxygen supply: liquid oxygen is after liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen surge tank are sequentially connected in series It is connected with the first oxygen intake of overcritical water oxidization reactor, the second oxygen intake, the first oxygen intake flow and coal are organic Object mixing liquid flow is chain, and the second oxygen intake flow and waste water/mud discharge are chain, guarantees that oxygen supply amount is that coal is organic Object mixing liquid, waste water/sludge material complete oxidation are 1-3 times of CO2 and water oxygen demand；

5) supercritical water oxidation: using the evaporation wall type overcritical water oxidization reactor of multilayer torch firing structure burner, The oxygen and coal organic matter mixing liquid of first oxygen intake are sprayed from internal layer, first quickly anti-in overcritical water oxidization reactor Supercritical water hot flame should be formed, while the oxygen of the second oxygen intake and waste water/sludge are sprayed into from outer layer, in supercritical water hot flame In oxidation reaction continuously and healthily；

6) evaporative crystallization: the high-temp liquid of the bottom discharge of overcritical water oxidization reactor passes through partially liq gas after decompression Change, remaining dope carries out multistage evaporation using gasification steam, and salt is finally discharged in the form of solid salt；

7) it exchanges heat: the thermal fluid inlet of the high-temperature steam outlet of overcritical water oxidization reactor connection heat exchanger, using super 400-500 DEG C of high-temperature steam of critical oxidation reaction output carries out the heating of coal/organic matter mixing liquid, to guarantee entire From progress is maintained, the cold fluid outlet temperature of heat exchanger is controlled at 200-300 DEG C for reaction；

8) gas-liquid separation: the high-temperature steam that overcritical water oxidization reactor comes out forms biphase gas and liquid flow after heat exchange Body, the gas-liquid two-phase fluid pass through the available steam of gas-liquid separator and hot water, can carry out UTILIZATION OF VESIDUAL HEAT IN；

9) UTILIZATION OF VESIDUAL HEAT IN: according to the quality of steam and quantity of output, can carry out generating electricity/for heat utilization.

Moreover, the organic matter is one or more kinds of combinations of biomass, petroleum, organic solution or organic solvent.

Moreover, the coal of the pretreated coal organic matter mixing liquid and the mass content of organic matter are 2%-75%.

Moreover, the overcritical water oxidization reactor is the evaporation wall type reactor of multilayer torch firing structure.

Moreover, the gas outlet temperature control of the overcritical water oxidization reactor is at 375-600 DEG C, liquid outlet is controlled At 100-350 DEG C.

The advantages and benefits of the present invention are:

1, waste water of the present invention, sewage sludge harmlessness recycling treatment system and method, not only realize the clean utilization of coal, And it is suitable for a variety of sewage treatments, sludge, biomass, waste oil, solvent slop, concentrating spent liquor etc. can be handled simultaneously；After processing Product is carbon dioxide, water and inorganic salts, will not generate secondary pollution；The heat generated in the process not only meets system itself With heat, and waste heat is used to heat, cooling supply and power generation.

2, waste water of the present invention, sewage sludge harmlessness recycling treatment system and method, it is anti-to solve existing supercritical water oxidation Answer the following problem of device: when waste water COD concentration is too low, reaction is unstable in the burner of reactor, and conversion zone temperature is too low, It even will cause the suspension of reaction, it is therefore necessary to preheat to sewage, corrode sexual element due to containing in sewage, at high temperature pole The burn into damage for easily causing instrument, valve, influences system whole service life and operation stability, coal organic matter of the invention Mixing liquid, wherein organic matter can realize adjusting material function, so that the reaction of the sewage of different COD value types in the reactor becomes It obtains controllably, has adjusted reaction temperature, the ratio of liquid phase in reaction product, to reduce reaction kettle and instrument thereon, valve The difficulty of door type selecting.

3, waste water of the present invention, sewage sludge harmlessness recycling treatment system and method, applied widely, high efficiency, no pollution It discharges, the energy and resource reclaim can be achieved at the same time, at trade effluent, sludge, high concentrated organic wastewater and dangerous waste Reason.

Detailed description of the invention

Fig. 1 is system schematic of the invention；

Fig. 2 is the evaporation wall type overcritical water oxidization reactor schematic diagram of multilayer torch firing of the invention.

Appended drawing reference

1- oxygen and coal organic matter mixing liquid entrance, 2- central burner nozzle, 3- outer layer burner, 4- reactor shell, 5- oxygen Gas and sewage/mud mixture entrance.

Specific embodiment

Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive, Qualitatively, this does not limit the scope of protection of the present invention.

It is a kind of using coal, organic matter as the waste water of raw material, sludge treating system, as shown in Figure 1, comprising:

1) coal organic admixture material pretreatment unit: including coal crushing grinding device, modifying device, modifying device is to adjust Matter pond, setting coal organic matter mixing liquid export；Coal crushing grinding device includes hammer mill and HGM80 ore super fine powder Machine.

2) fluid pressurization unit: including coal mixing liquid compress cell and waste water/sludge compress cell；Coal mixing liquid increases Pressing unit includes the first booster pump, heat exchanger and electric heater, and waste water/sludge compress cell includes the second booster pump；

3) oxygen supply unit: including sequentially connected liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen buffering Tank；

4) supercritical water oxidation unit: including overcritical water oxidization reactor, the of overcritical water oxidization reactor One oxygen intake, the second oxygen intake connect the oxygen surge tank oxygen outlet of the oxygen supply unit；Supercritical water oxidation Waste water/sludge inlet of reactor connects the second booster pump of the fluid pressurization unit；The liquid of overcritical water oxidization reactor Body entrance connects the coal organic matter mixing liquid outlet of the coal organic admixture material pretreatment unit, and first oxygen enters Mouth is connected in overcritical water oxidization reactor after converging with liquid inlet, second oxygen intake and waste water/sludge inlet It is connected in overcritical water oxidization reactor after converging；

As shown in Fig. 2, overcritical water oxidization reactor uses the evaporation wall type overcritical water oxidization reactor of multilayer torch firing, Its 4 upper end of reactor shell is provided with multilayer burner, and including most interior central burner nozzle 2 and at least one outer layer burner 3, center is burnt Mouth is formed with oxygen and coal organic matter mixing liquid entrance 1, and the burner of outer layer is formed with oxygen and sewage/mud mixture entrance 5.The The oxygen and coal organic matter mixing liquid of one oxygen intake are sprayed from central burner nozzle, in overcritical water oxidization reactor quickly first Reaction forms supercritical water hot flame, while the oxygen of the second oxygen intake and waste water/sludge are sprayed into from outer layer burner, overcritical Oxidation reaction continuously and healthily in hydro-thermal flame.

5) evaporative crystallization unit: including bottom surge tank and multi-stage evaporator；

6) heat reuse unit: the high-temperature steam outlet of overcritical water oxidization reactor connects the hot fluid of the heat exchanger Entrance；

7) gas-liquid separation unit: including gas-liquid separator, the hot fluid outlet ports of the heat exchanger connect gas-liquid separator；

8) UTILIZATION OF VESIDUAL HEAT IN unit: the steam (vapor) outlet of gas-liquid separation unit connects steam reclamation set.

It is a kind of using coal, organic matter as the waste water of raw material, method for sludge treatment comprising following steps:

1) material pre-processes: by the mixing of coal, organic matter, highly concentrated waste liquid that weight fraction ratio is 5-10:10-20:70-85 Afterwards by broken, grinding, it is quenched after form uniformly mixed coal organic matter mixing liquid, adjusting material uses lime or macromolecule Flocculant；Use coal, ethanol solution, VC production fermentation mother liquor (ten thousand mg/L of COD:30) ratio for 5:10:85) in the present embodiment, Liquid pressure increasing heat-exchanging: pretreated coal organic matter mixing liquid is delivered to after being supercharged to 22-30Mpa by the first booster pump Heat exchanger, waste water/sludge are delivered to overcritical water oxidization reactor after being supercharged to 22-30Mpa by the second booster pump.

3) electric heating: before supercritical water oxidation igniting, coal organic matter mixing liquid is carried out using electric heater 375 DEG C are heated to, electric heater stops heating after stable reaction；Heating unit is simple, easily-controllable, is not necessarily to long-distance transmission pipeline, Reduce instrument, the type selecting cost of valve.

4) oxygen supply: liquid oxygen is after liquid oxygen storage tank, liquid oxygen booster pump, air temperature heat exchanger, oxygen surge tank are sequentially connected in series It is connected with the first oxygen intake of overcritical water oxidization reactor, the second oxygen intake, the first oxygen intake flow and coal are organic Object mixing liquid flow is chain, and the second oxygen intake flow and waste water/mud discharge are chain, guarantees that oxygen supply amount is that coal is organic Object mixing liquid, waste water/sludge material complete oxidation are 1-3 times of CO2 and water oxygen demand；

5) supercritical water oxidation: using the evaporation wall type overcritical water oxidization reactor of multilayer torch firing, the first oxygen The oxygen and coal organic matter mixing liquid of entrance are sprayed from internal layer, and the first fast reaction in overcritical water oxidization reactor forms super Critical hot flame, while the oxygen of the second oxygen intake and waste water/sludge are sprayed into from outer layer, are continued in supercritical water hot flame fast Fast oxidation reaction；

6) evaporative crystallization: the high-temp liquid of the bottom discharge of overcritical water oxidization reactor passes through partially liq gas after decompression Change, remaining dope carries out multistage evaporation using gasification steam, and salt is finally discharged in the form of solid salt；

7) it exchanges heat: the thermal fluid inlet of the high-temperature steam outlet of overcritical water oxidization reactor connection heat exchanger, using super 400-500 DEG C of high-temperature steam of critical oxidation reaction output carries out the heating of coal/organic matter mixing liquid, to guarantee entire From progress is maintained, the cold fluid outlet temperature of heat exchanger is controlled at 200-300 DEG C for reaction；

8) gas-liquid separation: the high-temperature steam that overcritical water oxidization reactor comes out forms biphase gas and liquid flow after heat exchange Body, the gas-liquid two-phase fluid pass through the available steam of gas-liquid separator and hot water, can carry out UTILIZATION OF VESIDUAL HEAT IN；

9) UTILIZATION OF VESIDUAL HEAT IN: according to the quality of steam and quantity of output, can carry out generating electricity/for heat utilization.

Organic matter be biomass, organic solution or organic solvent, methanol, ethyl alcohol, propyl alcohol, butanol, ethylene glycol, propylene glycol, One of petroleum, gasoline, kerosene, diesel oil or more than one mixture combination.Pretreated coal organic matter mixing liquid Coal and organic matter mass content be 2%-75%.Overcritical water oxidization reactor is that the evaporation wall type of multilayer torch firing is overcritical Water oxidation reactor.At 375-600 DEG C, liquid outlet is controlled for the high-temperature steam outlet temperature control of overcritical water oxidization reactor At 100-350 DEG C.

Although disclosing the embodiment of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be managed Solution: do not departing from the present invention and spirit and scope of the appended claims in, various substitutions, changes and modifications be all it is possible, Therefore, the scope of the present invention is not limited to the embodiment and attached drawing disclosure of that.