WO2017032318A1 - 自处理废水的环保气化炉 - Google Patents

自处理废水的环保气化炉 Download PDF

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WO2017032318A1
WO2017032318A1 PCT/CN2016/096650 CN2016096650W WO2017032318A1 WO 2017032318 A1 WO2017032318 A1 WO 2017032318A1 CN 2016096650 W CN2016096650 W CN 2016096650W WO 2017032318 A1 WO2017032318 A1 WO 2017032318A1
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Prior art keywords
wastewater
self
gasification furnace
environmentally
treatment
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PCT/CN2016/096650
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English (en)
French (fr)
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傅敏燕
丁烙勇
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上海泽玛克敏达机械设备有限公司
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Publication of WO2017032318A1 publication Critical patent/WO2017032318A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/30—Fuel charging devices
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
    • C10J3/60—Processes
    • C10J3/64—Processes with decomposition of the distillation products
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features

Definitions

  • the invention belongs to the field of coal treatment, and particularly relates to an environmentally friendly gasification furnace for self-treatment of wastewater.
  • coal gasification devices are commonly used to vaporize carbonaceous solid fuels such as coal, plastic, garbage, old paper, and the like to generate gas.
  • the fixed bed gasifier is a coal gasification unit that converts bulk solid carbon-containing fuel into crude gas by using a mixture of steam/carbon dioxide and oxygen as a gasifying agent.
  • the technology is mature and reliable, the one-time investment is small, and the operating cost is low. The construction period is short and it is still widely used at home and abroad.
  • the existing fixed bed gasifier is generally a gasified massive solid carbonaceous fuel, which produces crude gas, and the sewage is discharged in the circulating water system, the waste heat recovery system and the gas water separation section of the gasification furnace.
  • the concentration of salt ions, organic matter and possible small particles of pulverized coal must meet zero emission requirements, and the cost of wastewater treatment is very high, which greatly reduces the profits of production enterprises. Therefore, many enterprises directly discharge or treat these wastewaters without treatment. Emissions cause great pollution, pollute the environment, and affect people's lives.
  • the invention provides an environmentally-friendly gasification furnace for self-treatment of waste water, which is used for solving the environment caused by discharge of waste water generated by the existing fixed-bed gasification furnace due to high treatment difficulty and high cost without direct discharge or treatment failure to meet the standard.
  • the problem of pollution is not limited to
  • the invention provides an environmentally-friendly gasification furnace for self-treatment wastewater, wherein the environmental protection gasification furnace for self-treatment wastewater is provided with a plurality of nozzles, and the environmentally-friendly gasification furnace for self-treatment wastewater further comprises a wastewater tank and a waste water pump.
  • the waste water tank is used for collecting waste water of the entire gasification system of the environmentally-friendly gasification furnace including the self-treatment wastewater, the waste water pump is connected at one end to the waste water tank, and the other end is connected to at least one of the nozzles, and the waste is The wastewater in the water tank is sprayed into the environmentally friendly gasification furnace of the self-treatment wastewater through the at least one nozzle.
  • the gasification furnace is a fixed bed gasification furnace.
  • the at least one nozzle is provided with at least two passages, wherein the first passage is for injecting a gasifying agent, and the second passage is for injecting the Waste water.
  • the wastewater is wastewater discharged from the circulating water system of the environmentally-friendly gasification furnace of the self-treatment wastewater and/or waste water discharged from the waste heat recovery system and/or
  • the gas water separation section is discharged to the wastewater of the phenol ammonia recovery section.
  • the environmentally-friendly gasification furnace of the self-treatment wastewater further comprises a mixing tank and a water coal slurry pump; the inlet of the mixing tank and the wastewater pump respectively The other end is connected to the pulverized coal preparation conveying system to mix the waste water and the pulverized coal to obtain a water coal slurry; one end of the water coal slurry pump is connected to the outlet of the mixing tank, and the other end is At least one nozzle connection is described, and the water coal slurry is sprayed into the gasifier.
  • the inlet of the mixing tank is also connected to the outlet port of the dispersant.
  • the other end of the water-hydrogen slurry pump is further connected with the inlet of the mixing tank to form a water-coal slurry circulation loop, and the water coal
  • a first control valve is also disposed on the slurry circulation circuit, and the water coal slurry is delivered to the mixing tank for remixing as needed.
  • the pulverized coal preparation and transportation system is also directly connected to the at least one nozzle, and the pulverized coal preparation and transportation system and the mixing tank are A second control valve and a third control valve are respectively disposed between the pulverized coal preparation and delivery system and the at least one nozzle, and the second control valve and the third control valve are in a parallel relationship.
  • the wastewater tank is further provided with a pipeline connected to the flare, and the exhaust gas that escapes and releases the waste water in the wastewater tank is subjected to combustion treatment.
  • the environmentally friendly gasification furnace for self-treatment wastewater of the present invention collects waste water of the entire gasification system including the environmental protection gasification furnace of the self-treatment wastewater through the waste water tank, and sprays the waste water into the furnace of the environmental protection gasification furnace of the self-treatment wastewater by the waste water pump
  • the reaction in the chamber is realized, the waste water recovery is realized, the waste water treatment cost is reduced, the production profit of the enterprise is greatly improved, and the environmental pollution problem caused by direct discharge of the waste water or disposal of the non-standard discharge is effectively solved.
  • the organic matter content in the wastewater and the possible content of the pulverized solid particles are high, and the waste water is recovered to the self-treated wastewater.
  • the environmentally friendly gasifier participates in the combustion, greatly utilizing the organic matter in the wastewater and possible pulverized coal solid particles, increasing the gas production, thereby effectively improving the energy utilization rate.
  • FIG. 1 is a schematic view showing the process of an embodiment of an environmentally friendly gasification furnace for self-treatment wastewater according to the present invention.
  • FIG. 2 is a schematic process view of another embodiment of an environmentally friendly gasification furnace for self-treatment wastewater according to the present invention.
  • FIG. 1 is a schematic view showing the process of an embodiment of an environmentally friendly gasification furnace for self-treatment wastewater according to the present invention.
  • the environmentally-friendly gasification furnace 3 of the self-treatment wastewater of the present embodiment is provided with a plurality of nozzles 4, because the environmentally-friendly gasification furnace 3 of the self-treatment wastewater in FIG. 1 is a cross-sectional view, so only FIG. 1
  • the technical solution of the present invention will be described by taking two nozzles 4 as an example.
  • the organic gasification furnace 3 of the self-treatment wastewater may be provided with a plurality of nozzles 4.
  • the environmentally-friendly gasification furnace 3 of the self-treatment wastewater of the present embodiment further includes a wastewater tank 1 and a waste water pump 2 for collecting waste water of the entire gasification system including the environmentally-friendly gasification furnace 3 of the self-treatment wastewater.
  • the environmentally friendly gasification furnace 3 of the self-treatment wastewater may be a fixed bed gasification furnace, more preferably a fixed bed slag gasification furnace.
  • the wastewater may be a circulating water system of the environmentally friendly gasification furnace 3 of the self-treatment wastewater and a waste water having a high concentration of salt ions discharged from the waste heat recovery process, containing a small amount of pulverized coal solid particles, or may be discharged to the phenol ammonia in the gas water separation section.
  • Wastewater with high organic matter content, salt ion concentration and possible high content of pulverized solid particles can collect these wastewaters and facilitate the recycling of these wastewaters. Moreover, in the present embodiment, the content of the organic matter, the salt ion concentration and the possible content of the pulverized coal solid particles in the wastewater collected by the wastewater tank 1 are both high.
  • one end of the waste water pump 2 is connected to the waste water tank 1 , and the other end is connected to at least one of the nozzles 4 , and the waste water in the waste water tank 1 is sprayed into the self-treated waste water through the at least one nozzle 4 .
  • the wastewater pump 2 pressurizes the wastewater in the wastewater tank 1, and the wastewater is sprayed into the environmentally-friendly gasification furnace 3 of the self-treatment wastewater through at least one nozzle 4 of the environmentally-friendly gasification furnace 3 of the self-treatment wastewater.
  • At least one of the nozzles 4 in the embodiment is provided with at least two passages, that is, at least one passage is added to the structure of the existing nozzle.
  • the first passage is for injecting a gasifying agent
  • the second passage is for injecting waste water.
  • the second passage may be connected to the waste water pump 2 for the waste water pump 2 to spray the extracted waste water into the environmentally friendly gasification furnace 3 of the treated waste water through the second passage.
  • the environmentally-friendly gasification furnace of the self-treatment wastewater of the present embodiment collects the wastewater generated by the entire gasification system of the environmentally-friendly gasification furnace 3 including the self-treatment wastewater through the wastewater tank 1, and sprays the wastewater into the self-treatment wastewater by the wastewater pump 2.
  • the environmentally friendly gasifier 3 participates in the reaction and realizes wastewater recovery.
  • the wastewater treatment cost is reduced, the production profit of the enterprise is greatly improved, and the environmental pollution problem caused by direct discharge of the wastewater or disposal of the non-standard discharge is effectively solved.
  • the organic matter in the wastewater and the possible pulverized coal solid particles participate in the combustion and reaction in the environmentally friendly gasification furnace 3 of the self-treatment wastewater, and the water participates in the gasification reaction as a gasifying agent in the gasification zone, and the wastewater is greatly utilized.
  • the useful ingredients in the increase in gas production, thereby effectively improving energy efficiency.
  • most of the salt ions in the wastewater are melted into the slag pool under the high temperature combustion zone, and are discharged with the glass slag, that is, the wastewater is treated environmentally.
  • the wastewater pump 2 directly injects the wastewater collected in the wastewater tank 1 into the environmentally-friendly gasification furnace 3 of the self-treatment wastewater. If the amount of wastewater injected is too large, the wastewater may be self-treated.
  • the reactants in front of the nozzle in the environmentally friendly gasification furnace 3 are wetted and hardened, so that the combustion is biased or even tempered, and the refractory bricks in the environmentally friendly gasification furnace 3 which damage the nozzle 4 and the self-treatment wastewater increase the environmental protection of the self-treatment wastewater.
  • the maintenance and maintenance time and cost of the gasification furnace 3 reduce the normal operation time of the environmentally friendly gasification furnace 3 of the self-treatment wastewater, and adversely affect the production efficiency of the entire plant.
  • the present invention also provides the following embodiments.
  • FIG. 2 is a schematic process view of another embodiment of an environmentally friendly gasification furnace for self-treatment wastewater according to the present invention.
  • the mixing tank 5 and the water coal slurry pump 6 are added; the inlet of the mixing tank 5 is simultaneously connected with the other end of the wastewater pump 2; And the pulverized coal preparation and delivery system 10 is connected to mix the wastewater and the pulverized coal to obtain a water coal slurry; for example, the wastewater pump 2 sprays the wastewater into the mixing tank 5, and the pulverized coal preparation and delivery system 10 delivers the prepared pulverized coal to the mixture.
  • waste water and pulverized coal are mixed in the mixing tank 5 to obtain a water coal slurry.
  • the pulverized coal is pulverized coal with a diameter of less than 70 ⁇ m and a moisture content of less than 10% w.
  • the pulverized coal particles are small, which is very convenient for mixing with waste water, and reduces the risk of abrasion and clogging of pipes and equipment.
  • the water coal slurry is similar to the coal water slurry, but the slurry formation rate can be lower than the general slurry formation rate of the coal water slurry, and may not even be slurried.
  • the inlet of the mixing tank 5 is also connected to the output line port 11 of the dispersing agent; the output line port 11 of the dispersing agent is used for the input dispersing agent, and is mainly used for dispersing, stabilizing and stabilizing the mixture of pulverized coal and waste water in the mixing tank 5. delivery.
  • one end of the water coal slurry pump 6 is connected to the outlet of the mixing tank 5, and the other end is connected to at least one nozzle 4 of the environmentally friendly gasification furnace 3 for treating wastewater, and the water coal slurry is sprayed into the self-treatment wastewater.
  • the environmentally friendly gasifier 3 is inside.
  • the amount of water coal slurry pumped by the water coal slurry pump 6 can be adjusted at any time, that is, the water coal material injected into the environmental gasification furnace 3 of the self-treatment wastewater.
  • the amount of pulp can be adjusted at any time.
  • the solid gasification of the environmentally-friendly gasifier 3 of the self-treatment wastewater is a solid fuel, which ensures the function of the conventional gasifier.
  • At least one nozzle 4 of the environmentally friendly gasification furnace 3 for self-treatment wastewater in the present embodiment is also provided with at least two passages, wherein the first passage is for injecting a gasifying agent, and the second passage is for spraying water coal. Slurry.
  • the environmentally-friendly gasification furnace of the self-treatment wastewater of the present embodiment when the obtained coal-water slurry is not uniform, the coal-water slurry cannot be sprayed into the environmentally-friendly gasification furnace 3 of the self-treatment wastewater; the self-treatment wastewater
  • the environmentally friendly gasifier 3 is unstable or does not meet the requirements of coal-water slurry gasification, the coal-water slurry cannot be sprayed into the environmentally-friendly gasifier 3 of the self-treatment wastewater.
  • the other end of the water coal slurry pump 6 is connected to the inlet of the mixing tank 5 to form a water coal slurry circulation loop, and the first control valve 7 is further disposed on the water coal slurry circulation loop, according to It is necessary to transport the water coal slurry to the mixing tank 5 for remixing.
  • the first control valve 7 is opened, and the water coal slurry pump is opened.
  • the water coal slurry conveying the water coal slurry to the mixing tank 5 through its outlet, the water coal slurry is again mixed with at least one of the wastewater, the pulverized coal, or the water coal slurry in the mixing tank 5, or a dispersing agent may be added until The hydraulic coal slurry is obtained to meet the demand, and the first control valve 7 is closed.
  • the subsequent process is the same as the process in which the above-mentioned coal-water slurry pump 6 sprays the water-hydrogen slurry into the environmentally-friendly gasification furnace 3 of the self-treatment wastewater and realizes the functions of the embodiment, and details are not described herein again.
  • the environmentally-friendly gasification furnace of the self-treatment wastewater of the present embodiment the pulverized coal preparation and transportation system 10 is directly connected to at least one nozzle 4 of the environmental protection gasification furnace 3 of the self-treatment wastewater, and the pulverized coal preparation and delivery system 10
  • a second control valve 8 and a third control valve 9 are respectively disposed between the mixing tank 5 and the pulverized coal preparation conveying system 10 and the at least one nozzle 4 of the environmentally friendly gasification furnace 3 for self-treatment wastewater, and the second control valve 8 is respectively provided.
  • the pulverized coal preparation and delivery system 10 includes at least a crusher, a dryer, a mill, and a necessary dense phase conveying device, the pulverized coal prepared by the pulverized coal preparation conveying system 10, when the second control valve 8 is opened, and the third control valve 9 When closing, the pulverized coal is delivered to the mixing tank 5, the second control valve 8 is closed, and when the third control valve 9 is opened, the ring is directly directed to the self-treatment wastewater.
  • the gas-holding furnace 3 transports pulverized coal, which ensures that when the wastewater is treated, the gasification wastewater has sufficient heat source, does not have a large impact on the overall gasification, effectively consumes the wastewater, and ensures that when there is no wastewater to be treated, It can directly vaporize some pulverized coal, effectively alleviating the problem of lump coal pulverized coal balance during coal mining.
  • the environmentally friendly gasification furnace of the self-treatment wastewater of the present embodiment obtains the water coal slurry by mixing the recovered wastewater with the pulverized coal in the mixing tank 5.
  • the obtained coal-water slurry is sprayed into the environmentally-friendly gasification furnace 3 of the self-treatment wastewater, thereby ensuring uniform mixing of the reactants in the environmentally-friendly gasification furnace 3 of the treated wastewater, and at the same time ensuring self-treatment of the wastewater when the wastewater is large.
  • the combustion and gasification in the environmental gasifier 3 are not greatly affected, thereby effectively improving the energy utilization rate, reducing the wastewater treatment cost, and greatly increasing the production profit of the enterprise, and effectively solving the direct discharge of the wastewater or the disposal of the standard.
  • the environmental pollution problem brought about, but also the energy waste caused by the organic matter in the wastewater and the direct discharge of possible pulverized coal solid particles.
  • the environmentally-friendly gasification furnace for self-treatment wastewater according to each of the above embodiments of FIG. 1 to FIG. 2, wherein the wastewater tank 1 is further provided with a pipeline connected to the flare, and the exhaust gas that escapes and releases the waste water in the wastewater tank 1 is subjected to combustion treatment.
  • the wastewater tank 1 is further provided with a pipeline connected to the flare, and the exhaust gas that escapes and releases the waste water in the wastewater tank 1 is subjected to combustion treatment.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

一种自处理废水的环保气化炉（3），该自处理废水的环保气化炉（3）上设有多个喷嘴（4）；该自处理废水的环保气化炉（3）还包括废水槽（1）和废水泵（2），废水槽（1）用于收集包括自处理废水的环保气化炉（3）的整个气化系统的废水，废水泵（2）一端与废水槽（1）连接，另一端与其中至少一个喷嘴（4）连接，将废水槽（1）中的废水通过至少一个喷嘴（4）喷入该气化炉（3）内。废水中的有机物含量以及可能的粉煤固体颗粒含量都较高，将该气化炉的整个气化系统的废水回收至气化炉的炉腔内参与燃烧，利用了废水中的有机物和可能的粉煤固体颗粒，增加煤气产量，降低废水处理成本实现废水回收。

Description

自处理废水的环保气化炉 技术领域
本发明属于煤处理领域，尤其涉及一种自处理废水的环保气化炉。
背景技术
工业生产中很多生产工艺流程需要用到煤气，日常生活中人们也越来越多利用煤气作为能源或原料。为了满足工业对煤气的需求，通常采用煤气化装置将煤块、塑料、垃圾、旧纸等等这些含碳固体燃料气化并产生煤气。
其中固定床气化炉是以蒸汽/二氧化碳与氧气的混合物为气化剂，将块状固体含碳燃料转化为粗煤气的煤炭气化装置，由于技术成熟可靠，一次性投资小，运营成本低，建设周期短，在国内外仍广泛使用。
但是现有固定床气化炉一般是气化块状固体含碳燃料，产生粗煤气，而在气化炉的循环水系统、废热回收系统以及煤气水分离工段会排出污水，这些污水由于含有高浓度的盐离子、有机物及可能的粉煤小颗粒，要达到零排放要求，废水处理成本很高，极大地降低了生产企业的利润，因此很多企业将这些废水未经处理直接排放或处理不达标就进行排放，造成很大污染，污染环境、影响人们的生活。
发明内容
本发明提供一种自处理废水的环保气化炉，用于解决现有固定床气化炉产生的废水由于处理难度大、成本高而未经处理直接排放或处理不达标就进行排放所造成环境污染的问题。
本发明提供一种自处理废水的环保气化炉，所述自处理废水的环保气化炉上设有多个喷嘴，所述自处理废水的环保气化炉还包括废水槽和废水泵，所述废水槽用于收集包括所述自处理废水的环保气化炉的整个气化系统的废水，所述废水泵一端与所述废水槽连接，另一端与其中至少一个喷嘴连接，将所述废水槽中的废水通过所述至少一个喷嘴喷入所述自处理废水的环保气化炉内。
进一步地，上述所述的自处理废水的环保气化炉中，该气化炉为固定床气化炉。
进一步地，上述所述的自处理废水的环保气化炉中，所述至少一个喷嘴设有至少两个通道，其中第一通道用于喷入气化剂，第二通道用于喷入所述废水。
进一步地，上述所述的自处理废水的环保气化炉中，所述废水为所述自处理废水的环保气化炉的循环水系统排出的废水和/或废热回收系统排出的废水和/或煤气水分离工段排向酚氨回收工段的废水。
进一步地，上述所述的自处理废水的环保气化炉中，所述自处理废水的环保气化炉还包括混合槽和水煤料浆泵；所述混合槽的进口分别与所述废水泵的所述另一端和粉煤制备输送系统连接，以将所述废水和粉煤混合得到水煤料浆；所述水煤料浆泵的一端与所述混合槽的出口连接，另一端与所述至少一个喷嘴连接，将所述水煤料浆喷入气化炉内。
进一步地，上述所述的自处理废水的环保气化炉中，所述混合槽的进口还与分散剂的输出管线口连接。
进一步地，上述所述的自处理废水的环保气化炉中，所述水煤料浆泵的另一端还与所述混合槽的进口连接，形成水煤料浆循环回路，且所述水煤料浆循环回路上还设置有第一控制阀门，根据需要将所述水煤料浆输送至所述混合槽进行再次混合。
进一步地，上述所述的自处理废水的环保气化炉，所述粉煤制备输送系统还直接与所述至少一个喷嘴连接，且所述粉煤制备输送系统与所述混合槽之间和所述粉煤制备输送系统与所述至少一个喷嘴之间分别设有第二控制阀门和第三控制阀门，所述第二控制阀门与所述第三控制阀门之间呈并联关系。
进一步地，上述所述的自处理废水的环保气化炉，所述废水槽还设有与火炬相连的管线，对所述废水槽中的所述废水中逃逸、释放的废气进行燃烧处理。
本发明的自处理废水的环保气化炉，通过废水槽收集包括自处理废水的环保气化炉的整个气化系统的废水，由废水泵将废水喷入自处理废水的环保气化炉的炉腔内参与反应，实现了废水回收，降低了废水处理成本，使企业生产利润大幅提高，同时有效解决了废水直接排放或处理不达标排放所带来的环境污染问题。而且废水中的有机物含量和可能的粉煤固体颗粒含量都较高，在将废水回收至自处理废水的 环保气化炉内参与燃烧，极大限度地利用了废水中的有机物和可能的粉煤固体颗粒，增加了煤气产量，从而有效地提高了能源利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的自处理废水的环保气化炉的一实施例的工艺简图。
图2为本发明的自处理废水的环保气化炉的另一实施例的工艺简图。
附图标记说明：
1 废水槽
2 废水泵
3 自处理废水的环保气化炉
4 喷嘴
5 混合槽
6 水煤料浆泵
7 第一控制阀门
8 第二控制阀门
9 第三控制阀门
10 粉煤制备输送系统
11 分散剂的输出管线口
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是 全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明的自处理废水的环保气化炉的一实施例的工艺简图。如图1所示，本实施例的自处理废水的环保气化炉3上设有多个喷嘴4，因为图1中的自处理废水的环保气化炉3是剖面图，所以图1中仅以示出两个喷嘴4为例描述本发明的技术方案。实际应用中该自处理废水的环保气化炉3上可以设置有多个喷嘴4。
本实施例的该自处理废水的环保气化炉3还包括废水槽1和废水泵2，废水槽1用于收集包括自处理废水的环保气化炉3的整个气化系统的废水。例如，该自处理废水的环保气化炉3可以为固定床气化炉，更优选地是固定床熔渣气化炉。废水可以是自处理废水的环保气化炉3的循环水系统和废热回收过程中排出的盐离子浓度较高、含少量粉煤固体颗粒的废水，也可以是煤气水分离工段排向酚氨回收工段的有机物含量、盐离子浓度及可能的粉煤固体颗粒含量都较高的废水。废水槽1可以收集这些废水，便于对这些废水进行回收利用。而且本实施例中，废水槽1收集的这些废水中有机物的含量、盐离子浓度及可能的粉煤固体颗粒含量都较高。
如图1所示，本实施例中，废水泵2一端与废水槽1连接，另一端与其中至少一个喷嘴4连接，将废水槽1中的废水通过至少一个喷嘴4喷入自处理废水的环保气化炉3内；例如，废水泵2对废水槽1中的废水加压将废水通过自处理废水的环保气化炉3的至少一个喷嘴4喷入自处理废水的环保气化炉3内。
需要说明的是，本实施例中的至少一个喷嘴4上设有至少两个通道，也就是说，在现有的喷嘴的结构上要至少增加一条通道。当本实施例的至少一个喷嘴4上设置有两个通道时，其中第一通道用于喷入气化剂，第二通道用于喷入废水。具体地该第二通道可以与废水泵2连接，以供废水泵2将抽取的废水通过该第二通道喷入自处理废水的环保气化炉3内。
本实施例的自处理废水的环保气化炉，通过废水槽1收集包括自处理废水的环保气化炉3的整个气化系统产生的废水，并由废水泵2将废水喷入自处理废水的环保气化炉3内参与反应，实现了废水回收， 降低了废水处理成本，使企业生产利润大幅提高，同时有效解决了废水直接排放或处理不达标排放带来的环境污染问题。而且废水中的有机物以及可能的粉煤固体颗粒在自处理废水的环保气化炉3内参与燃烧和反应，水则作为气化剂在气化区参与气化反应，极大限度地利用了废水中的有用成分，增加了产气量，从而有效地提高了能源利用率。同时，废水中的大部分盐离子在高温燃烧区下熔融进入渣池，随玻璃质熔渣排出，即环保地处理了废水。
上述图1所示的实施例中废水泵2将废水槽1收集的废水直接喷入自处理废水的环保气化炉3内，如果喷入的废水量过大的话，则可能会造成自处理废水的环保气化炉3内喷嘴前方的反应物润湿、硬化，使得燃烧偏向，甚至回火，损坏喷嘴4及自处理废水的环保气化炉3内的耐火砖，增加了自处理废水的环保气化炉3的维修、维护时间和成本，降低自处理废水的环保气化炉3的正常运转时间，反而影响了整体工厂的生产效率。
为了解决上述问题，本发明还提供以下实施例。
图2为本发明的自处理废水的环保气化炉的另一实施例的工艺简图。如图2所示，本实施例在上述图1所示实施例的技术方案的基础上，增加了混合槽5和水煤料浆泵6；混合槽5的进口同时与废水泵2的另一端和粉煤制备输送系统10连接以将废水和粉煤混合得到水煤料浆；例如，废水泵2将废水喷入混合槽5中，同时粉煤制备输送系统10将制备的粉煤输送至混合槽5内，废水与粉煤在混合槽5中混合从而得到水煤料浆。需要说明的是，该粉煤为直径小于70μm，水分含量小于10％w的粉煤，粉煤颗粒较小，非常便于与废水的混合，减少对管道和设备的磨损和堵塞风险。水煤料浆与水煤浆相似，但成浆率可低于水煤浆的一般成浆率，甚至可以不成浆。混合槽5的进口还与分散剂的输出管线口11连接；分散剂的输出管线口11用于输入的分散剂，主要用于使混合槽5中的粉煤、废水的混合物分散、稳定，便于输送。
本实施例中，水煤料浆泵6的一端与混合槽5的出口连接，另一端与自处理废水的环保气化炉3的至少一个喷嘴4连接，将水煤料浆喷入自处理废水的环保气化炉3内。例如，水煤料浆泵6抽取水煤料浆的量可以随时调节，即喷入自处理废水的环保气化炉3内的水煤料 浆的量是可以随时调节的，当不喷入水煤料浆时，自处理废水的环保气化炉3的炉腔内气化的是块状固体燃料，这样就保证了传统气化炉的功能；当随着水煤料浆喷入量不断加大，自处理废水的环保气化炉3内块状燃料的消耗量就会相应减少。水煤料浆和气化剂接触时间短，反应时间快，产气能力比固定床块煤气化能力高，所以产气量会明显增加，这样不仅使废水得以回收再利用，同时还增加了产气量。
同理，本实施例中的自处理废水的环保气化炉3的至少一个喷嘴4也设有至少两个通道，其中第一通道用于喷入气化剂，第二通道用于喷入水煤料浆。
进一步可选地，本实施例的自处理废水的环保气化炉，当得到的水煤料浆不均匀时，水煤料浆不能喷入自处理废水的环保气化炉3内；自处理废水的环保气化炉3工况不稳定或不满足水煤料浆气化要求时，水煤料浆也不能喷入自处理废水的环保气化炉3内。所以本实施例还将水煤料浆泵6的另一端与混合槽5的进口连接，形成水煤料浆循环回路，且该水煤料浆循环回路上还设置有第一控制阀门7，根据需要将水煤料浆输送至混合槽5进行再次混合。例如，当得到的水煤料浆不均匀时以及自处理废水的环保气化炉3工况不稳定或不满足水煤料浆气化要求时，第一控制阀门7打开，水煤料浆泵6通过其出口将水煤料浆输送至混合槽5，水煤料浆再次与混合槽5中的废水、粉煤、或者水煤料浆中至少一种混合，或者还可以添加分散剂，直到得到满足需求的水煤料浆，第一控制阀门7关闭。之后的过程，与上述水煤料浆泵6将水煤料浆喷入自处理废水的环保气化炉3内并实现本实施例功能的过程一样，在此不再赘述。
进一步可选地，本实施例的自处理废水的环保气化炉，粉煤制备输送系统10还直接与自处理废水的环保气化炉3的至少一个喷嘴4连接，且粉煤制备输送系统10与混合槽5之间和粉煤制备输送系统10与自处理废水的环保气化炉3的至少一个喷嘴4之间分别设有第二控制阀门8和第三控制阀门9，第二控制阀门8与第三控制阀门9之间呈并联关系。例如，粉煤制备输送系统10至少包括破碎机、干燥器、磨机以及必要的密相输送设备，粉煤制备输送系统10制备的粉煤，当第二控制阀门8打开，第三控制阀门9关闭时向混合槽5输送粉煤，第二控制阀门8关闭，第三控制阀门9打开时则直接向自处理废水的环 保气化炉3输送粉煤，这样既保证了在处理废水时，气化废水有足够的热源，不对整体气化造成大的影响，有效地消耗废水，又保证了在没有废水需要处理时还可以直接气化部分粉煤，有效缓解煤矿采煤时的块煤粉煤平衡问题。
本实施例的自处理废水的环保气化炉通过将回收的废水与粉煤在混合槽5中混合，得到水煤料浆。将得到的水煤料浆喷入自处理废水的环保气化炉3内，确保了自处理废水的环保气化炉3内的反应物混合均匀，同时保证了在废水较多时，自处理废水的环保气化炉3内的燃烧和气化不受大的影响，从而有效地提高了能源利用率，降低了废水处理成本，使企业生产利润大幅提高，同时有效解决了废水直接排放或处理不达标排放带来的环境污染问题，而且还避免了废水中的有机物以及可能的粉煤固体颗粒的直接排放造成的能源浪费。
上述图1-图2中各实施例的自处理废水的环保气化炉，该废水槽1还设有与火炬相连的管线，对废水槽1中的废水中逃逸、释放的废气进行燃烧处理，从而保证废水槽1的安全，使整个系统更安全可靠。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (9)

  1. 一种自处理废水的环保气化炉，所述自处理废水的环保气化炉上设有多个喷嘴，其特征在于，所述自处理废水的环保气化炉还包括废水槽和废水泵，所述废水槽用于收集包括所述自处理废水的环保气化炉的整个气化系统的废水，所述废水泵一端与所述废水槽连接，另一端与其中至少一个喷嘴连接，将所述废水槽中的废水通过所述至少一个喷嘴喷入所述自处理废水的环保气化炉内。
  2. 根据权利要求1所述的自处理废水的环保气化炉，其特征在于：所述自处理废水的环保气化炉为固定床气化炉。
  3. 根据权利要求1所述的自处理废水的环保气化炉，其特征在于：所述至少一个喷嘴设有至少两个通道，其中第一通道用于喷入气化剂，第二通道用于喷入所述废水。
  4. 根据权利要求1所述的自处理废水的环保气化炉，其特征在于：所述废水为所述自处理废水的环保气化炉的循环水系统排出的废水和/或废热回收系统排出的废水和/或煤气水分离工段排向酚氨回收工段的废水。
  5. 根据权利要求1所述的自处理废水的环保气化炉，其特征在于，所述自处理废水的环保气化炉还包括混合槽和水煤料浆泵；所述混合槽的进口分别与所述废水泵的所述另一端和粉煤制备输送系统连接，以将所述废水和粉煤混合得到水煤料浆；所述水煤料浆泵的一端与所述混合槽的出口连接，另一端与所述至少一个喷嘴连接，将所述水煤料浆喷入气化炉内。
  6. 根据权利要求5所述的自处理废水的环保气化炉，其特征在于，所述混合槽的进口还与分散剂的输出管线口连接。
  7. 根据权利要求5所述的自处理废水的环保气化炉，其特征在于：所述水煤料浆泵的另一端还与所述混合槽的进口连接，形成水煤料浆循环回路，且所述水煤料浆循环回路上还设置有第一控制阀门，根据需要将所述水煤料浆输送至所述混合槽进行再次混合。
  8. 根据权利要求5所述的自处理废水的环保气化炉，其特征在于：所述粉煤制备输送系统还直接与所述至少一个喷嘴连接，且所述粉煤制备输送系统与所述混合槽之间和所述粉煤制备输送系统与所述至少 一个喷嘴之间分别设有第二控制阀门和第三控制阀门，所述第二控制阀门与所述第三控制阀门之间呈并联关系。
  9. 根据权利要求1-8任一所述的自处理废水的环保气化炉，其特征在于，所述废水槽还设有与火炬相连的管线，对所述废水槽中的所述废水中逃逸、释放的废气进行燃烧处理。
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CN105154143A (zh) * 2015-08-26 2015-12-16 上海泽玛克敏达机械设备有限公司 自处理废水的环保气化炉
CN204918504U (zh) * 2015-08-26 2015-12-30 上海泽玛克敏达机械设备有限公司 自处理废水的环保气化炉

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