WO2017032319A1 - Multi-functional nozzle for fixed bed slag gasification furnace, and fixed bed slag gasification furnace - Google Patents

Multi-functional nozzle for fixed bed slag gasification furnace, and fixed bed slag gasification furnace Download PDF

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Publication number
WO2017032319A1
WO2017032319A1 PCT/CN2016/096665 CN2016096665W WO2017032319A1 WO 2017032319 A1 WO2017032319 A1 WO 2017032319A1 CN 2016096665 W CN2016096665 W CN 2016096665W WO 2017032319 A1 WO2017032319 A1 WO 2017032319A1
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Prior art keywords
tar
outlet
fixed bed
gasification furnace
bed slag
Prior art date
Application number
PCT/CN2016/096665
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French (fr)
Chinese (zh)
Inventor
傅敏燕
丁烙勇
Original Assignee
上海泽玛克敏达机械设备有限公司
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Priority to CN201510532735.3 priority Critical
Priority to CN201510532735.3A priority patent/CN105038857B/en
Application filed by 上海泽玛克敏达机械设备有限公司 filed Critical 上海泽玛克敏达机械设备有限公司
Publication of WO2017032319A1 publication Critical patent/WO2017032319A1/en

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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02Fixed-bed gasification of lump fuel
    • C10J3/20Apparatus; Plants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02Fixed-bed gasification of lump fuel
    • C10J3/20Apparatus; Plants
    • C10J3/30Fuel charging devices
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72Other features
    • C10J3/82Gas withdrawal means

Abstract

A multi-functional nozzle for a fixed bed slag gasification furnace, a plurality of channels being arranged in the nozzle, a gasification agent channel amongst the plurality of channels being positioned in the centre of the nozzle, and being used for injecting gasification agent used by the fixed bed slag gasification furnace for combustion and gasification; auxiliary channels are positioned on the four sides of the gasification agent channel, and are used for enriching the functions of the fixed bed slag gasification furnace. The fixed bed slag gasification furnace provided with a plurality of multi-functional nozzles also comprises an application system, said application system comprising a first outlet, a second outlet, a third outlet, and a fourth outlet, connected to the four or more auxiliary channels in the multi-functional nozzle. The present multi-functional nozzle for a fixed bed slag gasification furnace increases the functions of the nozzle of the fixed bed slag gasification furnace, and is highly practical.

Description

Multi-function nozzle of fixed bed slag gasification furnace and fixed bed slag gasification furnace Technical field

The invention relates to the technical field of coal treatment, in particular to a multifunctional nozzle of a fixed bed slag gasification furnace and a fixed bed slag gasification furnace thereof.

Background technique

Many production processes in industrial production require the use of gas, and people in their daily lives increasingly use gas as an energy source. In order to meet people's demand for gas, coal gasification devices are commonly used to gasify coal-containing solid fuels such as coal, plastic, garbage, old paper, and the like to generate gas.

In the prior art, the most commonly used fixed bed slag gasification furnace is a coal gasification device that converts bulk solid carbon-containing fuel into crude gas by using air, steam and oxygen as gasification agents, and the technology is mature and reliable, once Less investment, low operating costs, short construction period, and still widely used at home and abroad. The existing fixed bed slag gasification furnace is generally provided with a plurality of nozzles, and each nozzle has a gasifying agent passage for spraying the gasifying agent.

However, in the process of implementing the present invention, the inventors have found that at least the following disadvantages exist in the prior art: the nozzle of the prior art fixed bed slag gasification furnace includes only one gasifying agent passage, and the function is relatively simple, so that the fixed bed The function of the slag gasifier is also relatively simple.

Summary of the invention

The invention provides a multi-function nozzle of a fixed bed slag gasification furnace and a fixed bed slag gasification furnace thereof, so as to overcome the prior art fixed bed slag gasification furnace nozzle comprising only one channel, and the function is relatively simple. The problem is that the fixed bed slag gasification furnace can be sprayed with waste gas or dust tar in addition to the gasification agent, so that the functions of the fixed bed slag gasifier are diversified.

The invention provides a multifunctional nozzle of a fixed bed slag gasification furnace, wherein a plurality of channels are arranged in the nozzle; a gasifying agent channel in the plurality of channels is located at a center of the nozzle, and the gasifying agent channel A gasifying agent for injection into a fixed bed slag gasifier for combustion gasification.

Further, in the multi-function nozzle of the fixed bed slag gasification furnace, an auxiliary passage of the plurality of passages other than the gasification agent passage is evenly distributed in the nozzle, around the gasification agent passage .

Further, in the multi-function nozzle of the fixed bed slag gasification furnace, an auxiliary passage of the plurality of passages other than the gasification agent passage is uniformly distributed in the nozzle, The gasification agent channel is located in the area above the water level.

The present invention also provides a fixed bed slag gasification furnace, wherein the fixed bed slag gasification furnace is provided with a plurality of nozzles on the furnace body; wherein each of the nozzles adopts a multi-function nozzle as described above; The bed slag gasifier further includes an application system including a first outlet, a second outlet, a third outlet, and a fourth outlet, connected to four of the multi-function nozzles and the auxiliary passages described above, The first outlet, the second outlet, the third outlet, and the fourth outlet may be selected for one, two or three outlet portions to be opened for use, or four outlets may be selected for all use.

Further, in the above fixed bed slag gasification furnace, the application system includes an auxiliary gasifying agent conveying line, and an outlet of the auxiliary gasifying agent conveying line is connected to the fourth outlet.

Further, in the above fixed bed slag gasification furnace, the application system further comprises a separate conveying line of waste water, dusty tar and pulverized coal, or a mixed conveying line.

Further, in the above fixed bed slag gasification furnace, the waste water transportation line includes: a waste water tank and a waste water pump; and the waste water tank is used for collecting the entire gasification system including the fixed bed slag gasification furnace Waste water, an inlet of the waste water pump is connected to the waste water tank, and an outlet of the waste water pump is connected to the first outlet.

Further, in the above fixed bed slag gasification furnace, the dusty tar conveying line includes: a tar tank, a homogenizer and a first tar jet pump, wherein the tar tank is used for collecting the fixed bed slag a dust-containing tar of the entire gasification system of the gasification furnace; the homogenizer is connected to an outlet of the tar tank for grinding and agitating the dust-containing tar; an inlet of the first tar jet pump Connected to the homogenizer, an outlet of the first tar jet pump is coupled to the second outlet.

Further, in the above fixed bed slag gasification furnace, the fixed bed slag gasification furnace further includes a crusher, an inlet of the crusher is connected to an outlet of the tar tank, and an outlet of the crusher The inlet connection of the homogenizer is used to crush the large particle solids mixed in the dusty tar.

Further, in the above fixed bed slag gasification furnace, the fixed bed slag gasification furnace further includes an agitation tank and a second tar injection pump, and an outlet of the first tar injection pump is connected to an inlet of the agitation tank The outlet of the agitation tank is connected to the inlet of the second tar injection pump, the outlet of the second tar injection pump is connected to the second outlet, and the inlet of the agitation tank is also connected with the output line of the light oil The first output line port of the port and/or dispersant is connected.

Further, in the above fixed bed slag gasification furnace, the first tar jet pump is discharged a first control valve is further disposed between the port and the inlet of the agitation tank, and a second control valve is further disposed between the outlet of the first tar injection pump and the outlet of the second tar injection pump, A control valve is in parallel relationship with the second control valve.

Further, in the above fixed bed slag gasification furnace, the fixed bed slag gasification furnace further includes a mixing tank and a third tar injection pump, and an outlet of the second tar injection pump is connected to an inlet of the mixing tank The outlet of the mixing tank is connected to the inlet of the third tar injection pump, the outlet of the third tar injection pump is connected to the second outlet, and the inlet of the mixing tank is also separately outputted from the pulverized coal The line port and the second output line port of the dispersant are connected.

Further, in the fixed bed slag gasification furnace, a third control valve is disposed between the outlet of the second tar injection pump and the inlet of the mixing tank, and the outlet and the outlet of the second tar injection pump A fourth control valve is further disposed between the outlets of the third tar injection pump, and the third control valve is in parallel relationship with the fourth control valve.

Further, in the above fixed bed slag gasification furnace, an outlet of the first tar injection pump is further connected with an inlet of the tar tank to form a first tar circulation loop, and the first tar circulation loop is further provided a fifth control valve; and/or an outlet of the second tar injection pump is further connected to an inlet of the agitation tank to form a second tar circulation loop, and a sixth control is further provided on the second tar circulation loop And an outlet of the third tar jet pump is further connected to an inlet of the mixing tank to form a third tar circulation loop, and a third control valve is further disposed on the third tar circulation loop.

Further, in the fixed bed slag gasification furnace, any two or three of the tar tank, the agitation tank and the mixing tank are combined; the corresponding first tar jet pump, the corresponding Any two or three of the second tar jet pump and the third tar jet pump are combined into one.

Further, in the above fixed bed slag gasification furnace, an eighth control valve is disposed between the waste water pump and the mixing tank; when the third control valve and the eighth control valve are opened, waste water is realized Mixed conveying line with dusty tar.

Further, in the above fixed bed slag gasification furnace, the pulverized coal conveying line includes a pulverized coal preparation device, and the pulverized coal preparation device is connected to the third outlet.

Further, in the above fixed bed slag gasification furnace, the pulverized coal preparation device is further connected to the output line port of the pulverized coal, and the pulverized coal preparation device is further connected to the output line port of the pulverized coal a ninth control valve is also provided, when the eighth control valve and the ninth When the control valve is opened, a mixed conveying line of waste water and pulverized coal is realized; when the third control valve and the ninth control valve are opened, a mixed conveying line of dusty tar and pulverized coal is realized; when the third control When the valve, the eighth control valve and the ninth control valve are opened, a mixed conveying line of waste water, dusty tar and pulverized coal is realized.

The multi-function nozzle of the fixed bed slag gasification furnace of the invention and the fixed bed slag gasification furnace thereof are provided with a plurality of multi-purpose nozzles, and a plurality of channels are arranged in the nozzle, enriching the fixed bed slag gasification furnace The function of the nozzle is very practical. Moreover, in addition to providing a plurality of multi-function nozzles, the fixed bed slag gasification furnace of the present invention is further provided with an application system for collecting and returning waste water and dusty tar in the fixed bed slag gasification furnace to a fixed bed. The slag gasifier participates in the reaction, realizes the recovery and utilization of materials, and achieves the purpose of environmental protection. At the same time, it can directly spray the pulverized coal into the fixed bed slag gasification furnace to participate in the reaction, improve energy utilization, and at the same time effectively The production of crude gas is increased; an auxiliary gasifying agent can also be injected to adjust the composition and proportion of the product of the fixed bed slag gasifier.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a first embodiment of a multi-function nozzle of a fixed bed slag gasification furnace of the present invention.

2 is a schematic cross-sectional view showing a second embodiment of the multi-function nozzle of the fixed bed slag gasification furnace of the present invention.

Fig. 3 is a partial structural schematic view showing an embodiment of a fixed bed slag gasification furnace of the present invention.

Fig. 4 is a schematic view showing the process of another part of the first embodiment of the fixed bed slag gasification furnace shown in Fig. 3.

Fig. 5 is a schematic view showing the process of another part of the second embodiment of the fixed bed slag gasification furnace shown in Fig. 3.

Description of the reference signs:

1 Multi-function nozzle 2 Gasification agent channel 3 Auxiliary channel 100 Furnace body of fixed bed slag gasifier 4 operating system 5 First exit 6 Second exit 7 Third exit 8 Fourth exit 0 Fifth exit 9 Wastewater tank 10 Waste water pump 11 Pipeline connected to the torch 12 Tar tank 13 Homogenizer 14 First tar jet pump 16 Crusher 17 Stirring tank 18 Second tar jet pump 19 Light oil output line port 20 First output port of the dispersant twenty one First control valve twenty two Second control valve twenty three Pipeline connected to the torch twenty four Mixing tank 25 Third tar jet pump 26 Pulverized coal output line port 20’ Second output line port of the dispersant 27 Third control valve 28 Fourth control valve

29 Fifth control valve 30 Sixth control valve 31 Seventh control valve 32 Eighth control valve 33 Pulverized coal preparation device 34 Ninth control valve 35 Tenth control valve 36 Eleventh control valve 37 Twelfth control valve

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a first embodiment of a multi-function nozzle of a fixed bed slag gasification furnace of the present invention. The multi-function nozzle 1 of the present embodiment is provided with a plurality of passages; among the plurality of passages, the gasification agent passage 2 is located at the center of the multi-function nozzle 1, and the gasification agent passage 2 is used for injection into the fixed bed slag gasification furnace combustion gas. The gasification agent used in the process.

As shown in FIG. 1, in the multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment, the auxiliary passages 3 other than the gasification agent passage 2 in the plurality of passages are evenly distributed in the multi-function nozzle 1, the gas Around the agent passage 2, the balance of the structure of the multi-function nozzle 1 can be ensured, and the structure is more stable. The embodiment shown in Fig. 1 describes the technical solution of the present invention by taking seven auxiliary channels 3 uniformly distributed around the gasifying agent passage 2. In practical applications, the number of auxiliary channels 3 is set according to actual needs, and is not limited herein. Further, a plurality of auxiliary channels 3 may be randomly distributed around the gasifying agent passage 2 as required, and it is not limited in the present invention to be uniformly distributed.

In the multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment, the gasifying agent passage 2 is mainly used for injecting a gasifying agent such as steam or carbon dioxide required for combustion gasification in a fixed bed slag gasification furnace. oxygen.

The other auxiliary passages 3 are used to spray waste water or dusty tar of the entire gasification system including the fixed bed slag gasification furnace to realize material recovery and utilization, and achieve environmental protection purposes; The crude gas output is increased; the auxiliary gasifying agent can also be sprayed to adjust the composition and proportion of the fixed bed slag gasifier product. For example, when the gasifying agent is a steaming oxygen mixture, carbon dioxide can be used as an auxiliary gasifying agent to increase the proportion of carbon monoxide in the crude gas, and of course the proportion of hydrogen decreases; when the gasifying agent is a mixture of carbon dioxide and oxygen, it can be used. Steam acts as an auxiliary gasifying agent to increase the ratio of methane to hydrogen.

It should be noted that, according to requirements, the plurality of auxiliary passages 3 of the multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment can simultaneously spray any one of the same materials; or different materials can be separately sprayed at the same time; It is of course also possible to partially inject the same material and partially inject different materials; it is of course also possible to partially use the part to be idle. For example, two adjacent auxiliary channels 3 of the plurality of auxiliary channels 3 spray different materials, and one auxiliary channel 3 separated by each phase can spray the same material, so that the injection into the fixed bed slag gasifier can be ensured. The materials in the furnace body can be well mixed to ensure that the injected materials are involved in the combustion reaction to the maximum extent. Alternatively, a plurality of auxiliary channels 3 may be disposed, and the two auxiliary channels 3 opposite to each other are sprayed into the same material, so that the materials can be fully dispersed after being injected, and fully participate in the combustion reaction.

In this embodiment, all the pipelines before the gasification agent passage 2 need to be insulated, and the flow temperature in the pipeline must be kept higher than 400 °C. If it is necessary to spray dust-containing tar, the pipeline in front of the auxiliary passage 3 needs to be insulated, and the temperature of the pipeline in the pipeline must be kept above 70 °C.

The multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment can overcome the defect that the nozzle 1 of the fixed bed slag gasification furnace of the prior art includes only one passage and has a single function by providing a plurality of passages; The multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment can enrich the versatility of the fixed bed slag gasification furnace and has strong practicability.

2 is a schematic cross-sectional view showing a second embodiment of the multi-function nozzle of the fixed bed slag gasification furnace of the present invention. The multi-function nozzle 1 of the fixed bed slag gasification furnace of the present embodiment is different from the embodiment shown in FIG. 1 in that the multi-function nozzle 1 of the fixed bed slag gasification furnace in the present embodiment has a plurality of passages. The auxiliary passages 3 other than the gasification agent passage 2 are evenly distributed in the multi-function nozzle 1 in the region above the level of the gasifying agent passage 2. Since, during use, the gasifying agent injected into the furnace body of the fixed bed slag gasification furnace through the gasifying agent passage 2 flows upward, so that other materials injected into the auxiliary passage 3 flow upward in the gasifying agent. During the process, it is scattered by the impact of the gasifying agent, so that it can fully participate in the combustion reaction. Ben For the other structures, functions, and effects of the multi-function nozzle 1 of the fixed bed slag gasification furnace of the embodiment, reference may be made to the description of the embodiment shown in FIG. 1 above, and details are not described herein again.

Fig. 3 is a partial structural schematic view showing an embodiment of a fixed bed slag gasification furnace of the present invention. Fig. 4 is a schematic view showing the process of another part of the first embodiment of the fixed bed slag gasification furnace shown in Fig. 3. As shown in Figs. 3 and 4, the structure of a complete fixed bed slag gasification furnace of this embodiment is constructed. As shown in FIG. 3, the furnace body 100 of the fixed bed slag gasification furnace of the present embodiment is provided with a plurality of nozzles, wherein each nozzle adopts the multi-function nozzle 1 shown in FIG. 1 or FIG. 2; The furnace body 100 of the fixed bed slag gasification furnace is a sectional view, and the technical solutions of the present invention are described by taking two nozzles symmetrically disposed on both sides of the furnace body 100 of the fixed bed slag gasification furnace. In practical application, A plurality of nozzles are arranged on the furnace body 100 of the fixed bed slag gasification furnace, which can be set according to requirements, and one or more multi-function nozzles can be combined with one or more prior art nozzles, or all of them can be multifunctional. nozzle. For the balance of the overall structure, all of the nozzles on the furnace body 100 of the fixed bed slag gasifier are preferably symmetrically arranged. And a 2.4 m fixed bed slag gasification furnace is preferably provided with four nozzles, and a 3.6 m fixed bed slag gasification furnace is preferably provided with six nozzles, and a 4.0 m fixed bed slag gasification furnace is preferably provided with eight nozzles. Nozzles. Alternatively, a double-layer nozzle or a multi-layer nozzle may be disposed on the fixed bed slag gasification furnace of the embodiment. For a schematic diagram of the structure of the multi-function nozzle 1, reference may be made to the embodiment shown in FIG. 1 or FIG. 2, and details are not described herein again.

As shown in FIG. 4, the fixed bed slag gasification furnace of the present embodiment further includes an application system 4, and the application system 4 includes a first outlet 5, a second outlet 6, a third outlet 7, and a fourth outlet 8, and more Four or more auxiliary channels 3 in the functional nozzle 1 are connected. The first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 may be selected such that one, two or three outlet portions are opened for use, or four outlets may be selected for all use. In the case where the outlet portion is opened for use, the unused outlet and its corresponding conveying line can also be eliminated, as described in the subsequent embodiments.

It should be noted that, at this time, the gasification agent supply device of the fixed bed slag gasification furnace can also be returned to the application system 4, and the corresponding outlet of the corresponding gasification agent supply device is defined as the fifth outlet 0, which The fifth outlet 0 is connected to the gasifying agent passage 2 for injecting a gasifying agent for ensuring normal combustion gasification in the fixed bed slag gasification furnace into the furnace body 100 of the fixed bed slag gasification furnace.

Optionally, the corresponding relationship between the multiple auxiliary channels and the outlets in this embodiment may include the following situations:

The first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 are respectively connected to four auxiliary passages in the same multi-function nozzle;

Or any two of the first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 are respectively connected to two auxiliary channels of the same multi-function nozzle; the other two and the other multi-function nozzle Two auxiliary channels are connected, or the other two are respectively connected to one of the other two multi-function nozzles;

Or any three of the first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 are respectively connected to three auxiliary channels of the same multi-function nozzle; one of the other and one of the other multi-function nozzles Auxiliary channel connection;

Or the first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 are respectively connected to one of the four multi-function nozzles;

Or the first outlet 5, the second outlet 6, the third outlet 7, and the fourth outlet 8 are connected to four or more auxiliary passages, that is, any one or more of the four outlets are simultaneously connected with two or more auxiliary passages, two The above auxiliary channels may be located in the same multi-function nozzle, or may be located in different multi-function nozzles, and the other outlets are respectively connected to one or more auxiliary channels, and one or more auxiliary channels may be located in the same multi-function nozzle as before, or may be located A multi-function nozzle different from the front.

Further, the application system 4 in the fixed bed slag gasification furnace of the present embodiment may further comprise a separate conveying line of waste water, dusty tar and pulverized coal, or a mixed conveying line, respectively, to realize slag gas to the fixed bed. The furnace body 100 of the furnace is sprayed with any one or more of waste water, dusty tar, and pulverized coal. The application system 4 also includes an auxiliary gasifying agent delivery line to inject the auxiliary gasifying agent as needed.

The fixed bed slag gasification furnace of the present embodiment realizes collecting and returning waste water and dusty tar in the fixed bed slag gasification furnace to the fixed bed slag gasification by providing a plurality of multi-function nozzles 1 and an application system 4. The furnace participates in the reaction, realizes the recovery and utilization of materials, and achieves the purpose of environmental protection. At the same time, it can directly spray the pulverized coal into the fixed bed slag gasification furnace to participate in the reaction, solve the block powder balance problem of the coal mine, and improve energy utilization; At the same time, the output of the crude gas can be effectively increased; the auxiliary gasifying agent can also be sprayed to adjust the composition and proportion of the product of the fixed bed slag gasifier.

Fig. 5 is a schematic view showing the process of another part of the second embodiment of the fixed bed slag gasification furnace shown in Fig. 3. As shown in Figs. 3 and 5, the structure of a complete fixed bed slag gasification furnace of this embodiment is constructed. The fixed bed slag gasification furnace of the present embodiment is in the above embodiment shown in FIG. On the basis of this, the technical solution of the present invention will be further described in more detail.

As shown in FIG. 5, in the present embodiment, the outlet of the auxiliary gasifying agent delivery line is connected to the fourth outlet 8. When the gasifying agent is a steaming oxygen mixture, carbon dioxide can be used as an auxiliary gasifying agent to increase the proportion of carbon monoxide, and of course the proportion of hydrogen decreases; when the gasifying agent is a mixture of carbon dioxide and oxygen, steam can be used as an auxiliary gas. Chemical agent to increase the ratio of methane to hydrogen. Only two examples of auxiliary gasifying agent applications are given here, and are not limited to these two examples.

As shown in FIG. 5, the waste water transport line in the fixed bed slag gasification furnace of the present embodiment may include: a waste water tank 9 and a waste water pump 10; and the waste water tank 9 is used to collect the whole of the fixed bed slag gasification furnace. The wastewater of the gasification system, the inlet of the wastewater pump 10 is connected to the wastewater tank 9, and the outlet of the wastewater pump 10 is connected to the first outlet 5. Optionally, the wastewater tank 9 is further provided with a pipeline 11 connected to the flare to realize combustion treatment of the exhaust gas that escapes from the wastewater of the wastewater tank 9 and is released.

The wastewater in the present embodiment may be a circulating water system of a fixed bed slag gasification furnace and a wastewater 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 from the gas water separation section. Waste water with high pulverized coal solid content, organic matter content and salt ion concentration in the phenol ammonia recovery section. The wastewater tank 9 can collect these wastewaters to facilitate 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 9 are both high. The waste water pump 10 sprays the waste water into the fixed bed slag gasification furnace through the first outlet 5 to participate in the reaction, thereby realizing the waste water recovery, reducing the waste water treatment cost, greatly increasing the production profit of the enterprise, and effectively solving the direct discharge or treatment of the waste water. Environmental pollution problems caused by substandard discharge. Moreover, the pulverized coal solid particles and organic matter in the wastewater participate in combustion and reaction in the fixed bed slag gasification furnace, and the water participates in the gasification reaction as a gasifying agent in the gasification zone, and the useful components in the wastewater are greatly utilized. Increased gas production, thus effectively improving energy efficiency. At the same time, 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.

Optionally, as shown in FIG. 5, the dusty tar conveying line of the embodiment may include: a tar tank 12, a homogenizer 13 and a first tar jet pump 14, and the tar tank 12 is used for collecting including a fixed bed melting. The dust-containing tar of the entire gasification system of the slag gasifier; the homogenizer 13 is connected to the outlet of the tar tank 12 for grinding and agitating the dust-containing tar; the inlet and the homogenizer of the first tar jet pump 14 13 connection, the outlet of the first tar jet pump 14 can be directly The second outlet 6 is connected, and the dust and tar after the grinding and stirring treatment are sprayed into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in the combustion reaction.

Further, as shown in FIG. 5, the fixed bed slag gasification furnace of the present embodiment further includes a crusher 16, the inlet of the crusher 16 is connected to the outlet of the tar tank 12, and the outlet and homogenization of the crusher 16 The inlet connection of the device 13 is used for crushing the large-particle solids which may be mixed in the dust-containing tar, so that the particle size of the large-particle solid which may be mixed in the dust-containing tar is reduced to less than 1 mm, which reduces the wear and blockage of the large-particle solids. The risk of piping and nozzle auxiliary passages makes dusty tars more susceptible to combustion reactions in the furnace of fixed bed slag gasifiers.

Further, as shown in FIG. 5, the fixed bed slag gasification furnace of the present embodiment further includes a stirring tank 17 and a second tar jet pump 18, which are poor in fluidity, and the dust tar is processed. Specifically, The outlet of a tar jet pump 14 is not directly connected to the second outlet 6, but is connected to the inlet of the agitation tank 17, the outlet of the agitation tank 17 is connected to the inlet of the second tar injection pump 18, and the outlet of the second tar injection pump 18 is It is connected to the second outlet 6, and the inlet of the agitation vessel 17 is also connected to the outlet port 19 of the light oil and/or the first outlet port 20 of the dispersant. Specifically, the light oil and/or the dispersing agent and the dust-containing tar extracted by the first tar jet pump 14 may be mixed and stirred in the stirring tank 17 to reduce the viscosity of the dust-containing tar and increase the fluidity of the dust-containing tar. This makes it easier for dusty tar to participate in the combustion reaction in the furnace of a fixed bed slag gasifier. The agitated dust-containing tar is sprayed into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in the combustion reaction. When the dusty tar having good fluidity is used, the stirring treatment of the stirring tank 17 may not be performed.

In this embodiment, the light oil refers to an oil having a lower density than the dust-containing tar, and may be naphtha. In practical applications, the light oil is not limited to naphtha or other light oil. No longer. The dispersant input from the first output line port 20 of the dispersant is mainly used to disperse and stabilize the mixture of the dusty tar or the dusty tar to facilitate transportation.

Further optionally, as shown in FIG. 5, a first control valve 21, an outlet of the first tar injection pump 14 and a second tar injection pump are further disposed between the outlet of the first tar injection pump 14 and the inlet of the agitation tank 17. A second control valve 22 is also disposed between the outlets of the 18, and the first control valve 21 and the second control valve 22 are in a parallel relationship.

Further, as shown in FIG. 5, the agitation tank 17 is further provided with a pipeline 23 connected to the torch for burning the exhaust gas that escapes from the dusty tar of the agitation tank 17, and reduces the combustible gas. Enrichment raises the risk of fire.

Further optionally, as shown in FIG. 5, the fixed bed slag gasification furnace further includes a mixing tank 24 and a third tar injection pump 25, and the outlet of the second tar injection pump 18 is not connected to the second outlet 6, but is mixed with The inlet of the tank 24 is connected, the outlet of the mixing tank 24 is connected to the inlet of the third tar injection pump 25, the outlet of the third tar jet pump 25 is connected to the second outlet 6, and the inlet of the mixing tank 24 is also separately associated with the pulverized coal. The output line port 26 and the second output line port 20' of the dispersant are connected. Since there may be a situation in which pulverized coal needs to be consumed in actual use, the mixing tank 24 may mix the pulverized coal input through the output line port 26 of the pulverized coal with the dusty tar to form a coal slurry, and the third tar jet pump 25 The extraction is carried out through the second outlet 6 into the furnace body 100 of the fixed bed slag gasification furnace to participate in the combustion reaction. The second output line port 20' of the dispersing agent is further used for conveying the dispersing agent to the mixing tank 24 for dispersing, stabilizing and stabilizing the dust-containing tar or the mixture of the pulverized coal, the waste water and the dust-containing tar in the mixing tank 24. delivery.

Further optionally, as shown in FIG. 5, a third control valve 27, an outlet of the second tar injection pump 18 and a third tar injection pump are further disposed between the outlet of the second tar injection pump 18 and the inlet of the mixing tank 24. A fourth control valve 28 is also provided between the outlets of 25, and the third control valve 27 is in parallel relationship with the fourth control valve 28.

Further optionally, as shown in FIG. 5, the outlet of the first tar injection pump 14 is also connected to the inlet of the tar tank 12 to form a first tar circulation loop, and a fifth control valve 29 is further disposed on the first tar circulation loop. And/or the outlet of the second tar injection pump 18 is also connected to the inlet of the agitation tank 17, forming a second tar circulation loop, and the second tar circulation loop is further provided with a sixth control valve 30; and/or a third tar The outlet of the jet pump 25 is also connected to the inlet of the mixing tank 24 to form a third tar circuit, and a third control valve 31 is also provided on the third tar circuit. The fifth control valve 29, the sixth control valve 30, and the seventh control valve 31 may be in a normally open state during use to ensure smooth flow of materials in the respective lines.

Further alternatively, as shown in FIG. 5, any two or three of the tar tank 12, the agitation tank 17, and the mixing tank 24 are combined; the corresponding first tar injection pump 14, the second tar injection pump 18, and The third tar jet pump 25 is either one or the combination of the three.

Further optionally, as shown in FIG. 5, an eighth control valve 32 is disposed between the waste water pump 10 and the mixing tank 24; when the third control valve 27 and the eighth control valve 32 are opened, the waste water and the dusty tar enter the mixture. The tank 24 participates in mixing to realize a mixed conveying line of wastewater and dust-containing tar.

Further optionally, as shown in FIG. 5, the conveying line of the pulverized coal comprises a pulverized coal preparation device 33. The pulverized coal preparation device 33 can be directly connected to the third outlet 7, and directly spray the pulverized coal into the furnace body 100 of the fixed bed slag gasification furnace to improve the utilization rate of the pulverized coal, and solve the problem of the block powder balance. Increase the gasification intensity and gas production of the fixed bed slag gasifier.

Further optionally, as shown in FIG. 5, the pulverized coal preparation device 33 is also connected to the output line port 26 of the pulverized coal, and the pulverized coal preparation device 33 is further provided with a ninth control between the output line port 26 of the pulverized coal. The valve 34 realizes a mixed conveying line of waste water and pulverized coal when the eighth control valve 32 and the ninth control valve 34 are opened; when the third control valve 27 and the ninth control valve 34 are opened, the dusty tar and the pulverized coal are realized. The mixed conveying line; when the third control valve 27, the eighth control valve 32 and the ninth control valve 34 are opened, a mixed conveying line of waste water, dust-containing tar and pulverized coal is realized.

Specifically, when the eighth control valve 32 and the ninth control valve 34 are opened, the other control valves are closed, and at this time, the waste water and the pulverized coal may be mixed in the mixing tank 24 to obtain a water coal slurry; Pulverized coal is pulverized coal with a diameter of less than 70μm 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 wear and blockage 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 water coal slurry is then sprayed through the second outlet 6 by the third tar jet pump 25 into the furnace body 100 of the fixed bed slag gasification furnace. For example, the amount of water coal slurry extracted by the third tar jet pump 25 can be adjusted at any time, that is, the amount of the water coal slurry injected into the furnace body 100 of the fixed bed slag gasification furnace can be adjusted at any time, when not spraying When entering the coal slurry, the solidified fuel in the furnace body 100 of the fixed bed slag gasification furnace is a bulk solid fuel, thus ensuring the function of the conventional fixed bed slag gasification furnace; As the input volume continues to increase, the consumption of bulk fuel in the furnace body 100 of the fixed bed slag gasification furnace is correspondingly reduced. The contact time of the coal-water slurry and the gasification agent is short, the reaction time is fast, and the gas production capacity is higher than that of the fixed bed coal gas, so the gas production amount will be significantly increased, so that the wastewater can be recycled and reused, and the gas production amount is also increased.

Further, as shown in FIG. 5, in order to effectively control the separate injection of waste water, dusty tar and pulverized coal, a tenth control valve 35 may be disposed between the outlet of the waste water pump 10 and the first outlet 5, An eleventh control valve 36 is disposed between the outlet of the third tar injection pump 25 and the second outlet 6, and a twelfth control valve 37 is disposed between the pulverized coal preparation device 33 and the third outlet 7 to achieve separate injection The waste water, dusty tar and pulverized coal in the furnace body 100 of the fixed bed slag gasification furnace are controlled. When a certain material needs to be sprayed, the corresponding valve is opened, and when it is not required to spray a certain material, the corresponding corresponding The valve can be. The embodiment shown in FIG. 5 describes the technical side of the present invention by taking all the optional technical solutions described above as an example. case. In practical applications, the opening and closing of each valve can be controlled according to requirements, and the corresponding materials can be separately injected or mixed into the furnace body 100 of the fixed bed slag gasification furnace. Specifically, it can be divided into the following cases:

Case 1: When spraying wastewater alone;

Only the tenth control valve 35 between the outlet of the waste water pump 10 and the first outlet 5 is opened, and waste water is injected into the furnace body 100 of the fixed bed slag gasification furnace through the first outlet 5 to participate in the combustion reaction.

Case 2, when tar is sprayed separately;

(1) For the dusty tar having very good fluidity, specifically, the second control valve 22, the fourth control valve 28, and the eleventh control valve 36 are opened; at the same time, the fifth control valve 29 is opened to maintain the tar circulation in the pipeline. Smooth; close other valves at the same time. At this time, the first tar injection pump 14 is connected to the second outlet 6, and finally the extracted tar-containing tar is injected into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in combustion. reaction.

(2) For the dusty tar which is not very good in fluidity, the dusty tar and the light oil or the dispersing agent may be stirred in the stirring tank 17, thereby increasing the fluidity of the dusty tar and facilitating the participation in fixing. The combustion reaction in the furnace body 100 of the bed slag gasification furnace. Specifically, the first control valve 21, the fourth control valve 28, and the eleventh control valve 36 are opened; the fifth control valve 29 and the sixth control valve 30 are simultaneously opened to keep the tar flow in the line smooth; and other valves are closed. At this time, the second tar injection pump 18 is connected to the second outlet 6, and the extracted tar-containing tar is injected into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in combustion. reaction.

Case 3: When spraying pulverized coal separately;

Only the twelfth control valve 37 between the pulverizing coal preparation unit 33 and the third outlet 7 is opened to close the other control valves. The pulverized coal conveyed by the pulverized coal preparation device 33 is directly injected into the furnace body 100 of the fixed bed slag gasification furnace through the third outlet 7 to participate in the combustion reaction.

Case 4, when spraying wastewater and pulverized coal;

First, the eighth control valve 32 and the ninth control valve 34 must be opened to mix the waste water and the pulverized coal in the mixing tank 24 to obtain a water coal slurry; then the third tar jet pump 25 extracts the coal water slurry from the mixing tank 24. At the same time, it is necessary to open the seventh control valve 31 to keep the flow of the pipeline unblocked; and open the eleventh control valve 36 so that the water coal slurry is sprayed into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6. Participate in the combustion reaction.

Case 5, when spraying wastewater and tar mixture;

First, the third control valve 27 and the eighth control valve 32 must be opened, and the dusty tar and waste water are required to be mixed in the mixing tank 24, and the seventh control valve 31 must also be opened to keep the mixture of the tar and the wastewater in the pipeline flowing smoothly; The eleventh control valve 36 must also be opened to effect injection of the extracted tar and wastewater mixture by the third tar jet pump 25 through the second outlet 6 into the furnace body 100 of the fixed bed slag gasifier for combustion reaction.

The dust-containing tar received by the mixing tank 24 may be extracted by the first tar injection pump 14 or may be extracted by the second tar injection pump 18. When the dust-containing tar received by the mixing tank 24 is extracted by the first tar injection pump 14, the second control valve 22 is opened correspondingly; at the same time, the fifth control valve 29 is opened to keep the tar in the pipeline flowing smoothly; and other valves are closed at the same time. . When the dusty tar received by the mixing tank 24 is extracted by the second tar injection pump 18, the first control valve 21 is opened correspondingly; the fifth control valve 29 and the sixth control valve 30 are simultaneously opened to keep the tar flowing in the pipeline. Smooth; close other valves at the same time.

Case 6, when spraying pulverized coal and tar mixture;

First, the third control valve 27 and the ninth control valve 34 must be opened, and the dusty tar and the pulverized coal are required to be mixed in the mixing tank 24. At the same time, the seventh control valve 31 must also be opened to keep the mixture of tar and waste water flowing smoothly in the pipeline; the eleventh control valve 36 must also be opened to realize the passage of the extracted tar and pulverized coal mixture by the third tar jet pump 25. The second outlet 6 is injected into the furnace body 100 of the fixed bed slag gasification furnace to participate in the combustion reaction.

The dust-containing tar received by the mixing tank 24 may be extracted by the first tar injection pump 14 or may be extracted by the second tar injection pump 18. When the dust-containing tar received by the mixing tank 24 is extracted by the first tar injection pump 14, the second control valve 22 is opened correspondingly; the fifth control valve 29 is simultaneously opened, and the tar in the pipeline is kept flowing smoothly; valve. When the dust-containing tar received by the mixing tank 24 is extracted by the second tar injection pump 18, the first control valve 21 is opened correspondingly; the fifth control valve 29 and the sixth control valve 30 are simultaneously opened to maintain the tar in the pipeline. Smooth circulation; close other valves at the same time. Finally, the third tar jet pump 25 is used to inject the extracted tar and pulverized coal mixture into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in the combustion reaction.

Case 7. When spraying into wastewater, pulverized coal and tar mixture;

First, the third control valve 27, the eighth control valve 32, and the ninth control valve 34 must be opened to mix waste water, dusty tar, and pulverized coal in the mixing tank 24. At the same time, the seventh control valve 31 must also be opened to keep the mixture in the pipeline flowing smoothly; the eleventh control valve The door 36 must also be opened to allow the extracted effluent, tar and pulverized coal mixture to be injected into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 by the third tar injection pump 25 to participate in the combustion reaction.

The dust-containing tar received by the mixing tank 24 may be extracted by the first tar injection pump 14 or may be extracted by the second tar injection pump 18. When the dust-containing tar received by the mixing tank 24 is extracted by the first tar injection pump 14, the second control valve 22 is opened correspondingly; at the same time, the fifth control valve 29 is opened to keep the tar in the pipeline flowing smoothly; and other valves are closed at the same time. . When the dusty tar received by the mixing tank 24 is extracted by the second tar injection pump 18, the first control valve 21 is opened correspondingly; the fifth control valve 29 and the sixth control valve 30 are simultaneously opened to keep the tar flowing in the pipeline. Smooth; close other valves at the same time. Finally, the third tar jet pump 25 is used to inject the extracted wastewater, tar and pulverized coal mixture into the furnace body 100 of the fixed bed slag gasification furnace through the second outlet 6 to participate in the combustion reaction.

The fixed bed slag gasification furnace of the present embodiment realizes collecting and returning waste water and dusty tar in the fixed bed slag gasification furnace to the fixed bed slag gasification by providing a plurality of multi-function nozzles 1 and an application system 4. The furnace participates in the reaction, realizes the recovery and utilization of materials, and achieves the purpose of environmental protection. At the same time, it can directly spray the pulverized coal into the fixed bed slag gasification furnace to participate in the reaction, improve energy utilization, and at the same time effectively improve the coarseness. Gas production; it is also possible to inject an auxiliary gasifying agent to adjust the composition and proportion of the fixed bed slag gasifier product.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (18)

  1. A multi-function nozzle of a fixed bed slag gasification furnace, characterized in that: a plurality of channels are arranged in the nozzle; a gasifying agent channel in the plurality of channels is located at a center of the nozzle, the gasifying agent The channel is used to inject a gasifying agent for combustion gasification in a fixed bed slag gasifier.
  2. The multi-function nozzle of a fixed bed slag gasification furnace according to claim 1, wherein an auxiliary passage of the plurality of passages other than the gasification agent passage is evenly distributed in the nozzle Around the gasification agent channel.
  3. The multi-function nozzle of a fixed bed slag gasification furnace according to claim 1, wherein an auxiliary passage of the plurality of passages other than the gasification agent passage is evenly distributed in the nozzle The area above the horizontal plane where the gasification agent channel is located.
  4. A fixed bed slag gasification furnace, wherein a plurality of nozzles are disposed on a furnace body of the fixed bed slag gasification furnace, wherein each of the nozzles adopts any one of claims 1-3 a multi-function nozzle; the fixed bed slag gasifier further includes an application system including a first outlet, a second outlet, a third outlet, and a fourth outlet, and four of the multi-function nozzles The auxiliary channel is connected, and the first outlet, the second outlet, the third outlet and the fourth outlet may be selected to be opened, or four of the outlet portions may be selected. All exports are open for use.
  5. A fixed bed slag gasification furnace according to claim 4, wherein said application system includes an auxiliary gasifying agent delivery line, and an outlet of said auxiliary gasifying agent delivery line is connected to said fourth outlet.
  6. The fixed bed slag gasification furnace according to claim 5, wherein the application system further comprises separate conveying lines of waste water, dusty tar, and pulverized coal, or a mixed conveying line.
  7. The fixed bed slag gasification furnace according to claim 6, wherein the waste water transportation line comprises: a waste water tank and a waste water pump; and the waste water tank is used for collecting the fixed bed slag gasification furnace The wastewater of the entire gasification system, the inlet of the wastewater pump is connected to the wastewater tank, and the outlet of the wastewater pump is connected to the first outlet.
  8. A fixed bed slag gasification furnace according to claim 7, wherein said dust tar-conveying line comprises: a tar tank, a homogenizer and a first tar jet pump, said tar tank being used for collecting a dust-containing tar of the entire gasification system of the fixed bed slag gasification furnace; the homogenizer is connected to an outlet of the tar tank for conducting the dust-containing tar Grinding and agitation processing; an inlet of the first tar injection pump is coupled to the homogenizer, and an outlet of the first tar injection pump is coupled to the second outlet.
  9. The fixed bed slag gasification furnace according to claim 8, wherein the fixed bed slag gasification furnace further comprises a crusher, and an inlet of the crusher is connected to an outlet of the tar tank, An outlet of the crusher is connected to the inlet of the homogenizer for crushing the large particulate solids mixed in the dust-containing tar.
  10. The fixed bed slag gasification furnace according to claim 8 or 9, wherein the fixed bed slag gasification furnace further comprises an agitation tank and a second tar injection pump, the outlet of the first tar jet pump Connected to the inlet of the agitation tank, the outlet of the agitation tank is connected to the inlet of the second tar injection pump, the outlet of the second tar injection pump is connected to the second outlet, and the agitation tank is The inlet is also connected to the output line port of the light oil and/or the first output line port of the dispersant.
  11. The fixed bed slag gasification furnace according to claim 10, wherein a first control valve is further disposed between the outlet of the first tar injection pump and the inlet of the agitation tank, the first tar A second control valve is further disposed between the outlet of the jet pump and the outlet of the second tar injection pump, the first control valve being in parallel relationship with the second control valve.
  12. A fixed bed slag gasification furnace according to claim 11, wherein said fixed bed slag gasification furnace further comprises a mixing tank and a third tar jet pump, and an outlet of said second tar jet pump An inlet connection of the mixing tank, an outlet of the mixing tank is connected to an inlet of the third tar injection pump, an outlet of the third tar injection pump is connected to the second outlet, and an inlet of the mixing tank is further Connected to the output line port of the pulverized coal and the second output line port of the dispersant, respectively.
  13. The fixed bed slag gasification furnace according to claim 12, wherein a third control valve is further disposed between the outlet of the second tar injection pump and the inlet of the mixing tank, the second tar A fourth control valve is further disposed between the outlet of the jet pump and the outlet of the third tar injection pump, and the third control valve is in parallel relationship with the fourth control valve.
  14. The fixed bed slag gasification furnace according to claim 13, wherein an outlet of the first tar injection pump is further connected to an inlet of the tar tank to form a first tar circulation loop, and the first a fifth control valve is further disposed on the tar circulation circuit; and/or an outlet of the second tar injection pump is further connected to an inlet of the agitation tank to form a second tar a circulation loop, and a sixth control valve is further disposed on the second tar circulation circuit; and/or an outlet of the third tar injection pump is further connected to an inlet of the mixing tank to form a third tar circulation loop, and A seventh control valve is further disposed on the third tar circulation circuit.
  15. The fixed bed slag gasification furnace according to claim 14, wherein any two or three of said tar tank, said agitation tank and said mixing tank are combined; Any two or three of a tar jet pump, the second tar jet pump, and the third tar jet pump are combined into one.
  16. The fixed bed slag gasification furnace according to any one of claims 13-15, wherein an eighth control valve is disposed between the waste water pump and the mixing tank; and when the third control valve and the When the eighth control valve is opened, a mixed conveying line of waste water and dusty tar is realized.
  17. A fixed bed slag gasification furnace according to claim 16, wherein said pulverized coal conveying line comprises a pulverized coal producing unit, said pulverized coal producing unit being connected to said third outlet.
  18. A fixed bed slag gasification furnace according to claim 17, wherein said pulverized coal preparation device is further connected to said output port of said pulverized coal, and said pulverized coal preparation device is further associated with said pulverized coal a ninth control valve is further disposed between the output line ports, and when the eighth control valve and the ninth control valve are opened, a mixed conveying line of waste water and pulverized coal is realized; when the third control valve and the When the ninth control valve is opened, a mixed conveying line of dusty tar and pulverized coal is realized; when the third control valve, the eighth control valve and the ninth control valve are opened, waste water and dust tar are realized Mixed conveying line with pulverized coal.
PCT/CN2016/096665 2015-08-26 2016-08-25 Multi-functional nozzle for fixed bed slag gasification furnace, and fixed bed slag gasification furnace WO2017032319A1 (en)

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CN105132029B (en) * 2015-08-26 2017-11-07 上海泽玛克敏达机械设备有限公司 From the environment protecting gasifying oven of processing dust-laden tar
CN105038857B (en) * 2015-08-26 2017-05-31 上海泽玛克敏达机械设备有限公司 The multifunctional nozzle and its fixed bed slag gasification furnace of fixed bed slag gasification furnace

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CN203613158U (en) * 2012-11-23 2014-05-28 新奥气化采煤有限公司 Nozzle, gasifier and carbonaceous organic matter gasification system
CN103436296A (en) * 2013-09-11 2013-12-11 上海泽玛克敏达机械设备有限公司 Slag gasifier for pressurized fixed bed
CN104312634A (en) * 2014-10-09 2015-01-28 华东理工大学 Composite thermal oxidative nozzle and application thereof
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