CN111423896B - Gasification coke production device and method - Google Patents

Gasification coke production device and method Download PDF

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Publication number
CN111423896B
CN111423896B CN202010241973.XA CN202010241973A CN111423896B CN 111423896 B CN111423896 B CN 111423896B CN 202010241973 A CN202010241973 A CN 202010241973A CN 111423896 B CN111423896 B CN 111423896B
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chamber
elution
extrusion
transfer
coking
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CN111423896A (en
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刘广军
韩红
袁宽瑜
王明锋
张一昕
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Jining University
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Jining University
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/04Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/02Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/08Cleaning involving contact with liquid the liquid having chemical or dissolving effect
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/10Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B39/00Cooling or quenching coke
    • C10B39/02Dry cooling outside the oven
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/02Multi-step carbonising or coking processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
    • C10B57/06Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/08Non-mechanical pretreatment of the charge, e.g. desulfurization
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/08Non-mechanical pretreatment of the charge, e.g. desulfurization
    • C10B57/10Drying

Abstract

The invention discloses a device and a method for producing gasified coke, wherein the device comprises an elution chamber, an elution pool is arranged in the elution chamber, and a net cage is arranged in the elution pool; the device also comprises a crushing chamber, a transfer chamber, a drying chamber and a coking chamber which are sequentially communicated, wherein two meshed crushing roller shafts are arranged in the crushing chamber, a guide plate is arranged between the crushing chamber and the transfer chamber at an interval, a transfer trolley is arranged in the transfer chamber, a heating device and a conveying steel belt are arranged in the drying chamber, and an extrusion stirring mechanism is arranged in the coking chamber; the method comprises the following steps: the production raw materials are sequentially eluted by strong acid, crushed, transported into a drying chamber by a transfer trolley for drying, formed into coke by a coking chamber, and sealed and quenched to obtain a gasified coke final product. The method is reasonably designed aiming at the production characteristics of the gasified coke, realizes high-efficiency and high-quality production, and has good development significance.

Description

Gasification coke production device and method
Technical Field
The invention relates to a device and a method, in particular to a device and a method for producing gasified coke.
Background
Gasified coke refers to coke that is used exclusively for producing coal gas. Mainly used for solid slag dischargeIn a fixed bed gas producer, CO and H are produced as gasification raw materials2Is coal gas with combustible components. At present, 90% of coke produced by the coke industry in China is metallurgical coke, however, the property requirement of the metallurgical coke is strict, and in the preparation process of the metallurgical coke, the selected coking coal needs high-quality coal with less ash content and less sulfur content; but the requirements of the gasification coke are lower than that of metallurgical coke, lower strength, smaller granularity and higher volatile content can be accepted, and the gasification coke is not sensitive to the content of impurities such as ash, sulfur and the like, so that low-quality coal can be used as a raw material to produce the gasification coke; therefore, the development idea of driving the transformation and the upgrade of the coking industry by the production of the gasified coke is very promising.
At present, most of the gasified coke production apparatuses are modified from coke ovens for producing metallurgical coke, and are not dedicated to the gasified coke production apparatuses, which results in low production efficiency to some extent and difficulty in ensuring high quality of the gasified coke end products.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides a device and a method for producing gasified coke.
In order to solve the technical problems, the invention adopts the technical scheme that: a gasified coke production device comprises a coking chamber, an elution chamber, a crushing chamber, a transfer chamber, a drying chamber and a blower, wherein the elution chamber is positioned at one side of the transfer chamber, the crushing chamber, the transfer chamber, the drying chamber and the coking chamber are sequentially communicated, a guide plate is arranged between the crushing chamber and the transfer chamber at an interval, and the guide plate is obliquely arranged downwards;
an elution pool supported by supporting legs is arranged in the elution chamber, a net cage is arranged in the elution pool, a discharge port of the elution pool is formed in one side of the elution pool, and a water pump is communicated with the other side of the elution pool through an acid liquor feeding pipe; the top of the elution chamber is provided with a reversible upper cover, the upper cover is provided with a feed hopper communicated with the elution chamber, the upper cover is provided with an acid liquid inlet, and one side of the elution chamber is provided with an acid liquid outlet;
the top end of the crushing chamber is provided with a crushing chamber inlet, two meshed crushing roller shafts are arranged in the crushing chamber, and the crushing roller shafts extrude each other to crush the gasified coke production raw materials;
a transfer trolley is arranged in the transfer chamber and moves along a moving track arranged on the ground of the transfer chamber; the drying chamber is internally provided with a heating device and a conveying steel belt, the heating device adopts a microwave generator and is fixedly arranged on the top wall of the drying chamber, and the conveying steel belt is positioned below the heating device and is obliquely arranged; an extrusion stirring mechanism is arranged in the coking chamber, the extrusion stirring mechanism is connected with an extrusion stirring motor, the extrusion stirring motor is arranged above the coking chamber, and a side charging hopper communicated with the coking chamber is arranged on the side wall of the coking chamber;
the air blower is arranged above the drying chamber or the coking chamber and is respectively communicated with a first air nozzle and a second air nozzle, the first air nozzle is positioned in the crushing chamber, and the second air nozzle is positioned in the coking chamber.
Furthermore, an elution rotating motor is further installed on the upper cover, and the elution rotating motor is connected with an elution stirring shaft and extends into the net cage to stir.
Furthermore, an opening for communicating the transfer chamber with the drying chamber is formed between the transfer chamber and the drying chamber, a movable door is installed at the opening, and the movable door is fixedly connected with a reciprocating motor; a channel is formed in the wall separating the transfer chamber and the drying chamber, and the reciprocating motor is installed in the channel.
Furthermore, the transfer trolley comprises a trolley body, a material pushing plate is arranged inside the trolley body, and the material pushing plate is connected with a material pushing motor; the side wall of the vehicle body facing the opening is provided with a vehicle door which is fixedly connected with a vehicle door push-pull motor.
Furthermore, an upper inserting plate is arranged on the upper side of the vehicle door, a lower inserting plate is arranged on the lower side of the vehicle door, the upper inserting plate and the lower inserting plate are vertically connected to the vehicle body, and the maximum distance h between the upper inserting plate and the lower inserting plate is consistent with the opening height of the opening.
Furthermore, the extrusion stirring mechanism comprises a fixed platform, an extrusion plate and a stirring piece;
the fixed platform is fixedly connected with the extrusion stirring motor, an air cylinder is arranged on the fixed platform, a piston of the air cylinder penetrates through the fixed platform and is fixedly connected with the extrusion plate, the extrusion plate is fixedly connected with a connecting shaft, and the connecting shaft penetrates through the fixed platform upwards and is inserted into a motor shaft of the extrusion stirring motor; the stirring piece is provided with a plurality ofly, and a plurality of stirring pieces are along the circumferencial direction fixed connection of stripper plate on the stripper plate.
Furthermore, an anti-falling plate is fixedly arranged at the top end of the connecting shaft, and a limiting retaining ring for blocking the anti-falling plate is fixedly arranged in a surrounding manner inside a motor shaft of the extrusion stirring motor; still vertically be provided with many sand grips on the connecting axle, the inside slot of offering with sand grip assorted of motor shaft of extrusion agitator motor.
A working method of a gasified coke production device specifically comprises the following steps:
preparing raw materials for producing gasified coke in advance, wherein the raw materials are various low-rank coals, and meanwhile, filling sufficient strong acid eluent into an elution pool from an acid liquor inlet in advance;
putting a plurality of low-rank coals into a net cage from a feed hopper, wherein the net cage is made of a metal screen with 3-5mm sieve pores, and is soaked in strong acid eluent in an elution pool to elute the plurality of low-rank coals by the strong acid eluent, so that metal minerals in the plurality of low-rank coals are removed, and the metal minerals are prevented from interfering the pyrolysis process; in the elution process of the strong acid eluent, the elution stirring shaft is continuously stirred to promote the elution process;
step three, after the elution treatment, taking out the net cage, transferring a plurality of low-rank coals to an inlet of a crushing chamber, and extruding and crushing the low-rank coals into the crushing chamber from the inlet of the crushing chamber by a crushing roller shaft;
step four, the crushed low-rank coal falls downwards under the action of gravity and quickly falls into a transfer trolley along the limited direction of a guide plate, and a first air injection head continuously blows hot air into a crushing chamber in the process of falling downwards so as to remove moisture on the surfaces of the crushed low-rank coal;
step five, after the transfer trolley is filled with the crushed low-rank coals, the transfer trolley moves forwards along the moving track and conveys the crushed low-rank coals to a conveying steel belt in a drying chamber at a specified position, the conveying steel belt continuously conveys the raw materials forwards, and meanwhile, a heating device heats the temperature in the drying chamber to 250-300 ℃ to realize deep drying and preheating of the raw materials on the conveying steel belt;
step six, after drying and preheating are completed, the conveying steel belt sends the raw materials into a coking chamber, the temperature in the coking chamber is firstly raised to 500-600 ℃ so as to soften various low-rank coals, in the process, the adhesive and the pyrolysis catalyst for producing the gasified cokes are added from a side hopper, and an extrusion stirring mechanism is continuously rotated and stirred so as to fully mix the various low-rank coals, the adhesive and the pyrolysis catalyst;
seventhly, after reacting for 5-8 hours at the temperature of 500-600 ℃, uniformly raising the temperature in the coking chamber to 900 ℃ at intervals of 5 ℃, keeping the temperature condition of 900 ℃ for 3-5 hours, stopping stirring by the rotary stirring mechanism in the process, and continuously hammering and tamping by the rotary stirring mechanism to obtain a gasified coke primary product;
and step eight, finally, conveying the primary gasified coke product into a dry quenching furnace for sealing and dry quenching treatment to obtain the gasified coke.
The invention discloses a device and a method for producing gasified coke, which utilize low-rank coal as a production raw material, realize the high-efficiency utilization of resources, are specially used for the production of the gasified coke, are reasonably designed aiming at the production characteristics of the gasified coke, realize the high-efficiency and high-quality production, drive the transformation and upgrade of the coking industry by the production of the gasified coke, and have good development significance.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the crushing chamber and the transfer chamber in fig. 1.
Fig. 3 is a schematic view of the transfer cart of fig. 2.
Fig. 4 is a schematic structural diagram of the extrusion stirring mechanism in fig. 1.
Fig. 5 is a schematic structural view of the connecting shaft in fig. 4.
In the figure: 1. an elution chamber; 2. a crushing chamber; 3. a transfer chamber; 4. a baffle; 5. a drying chamber; 6. a coking chamber; 7. a blower; 8. a feed hopper; 9. an extrusion stirring mechanism; 10. an elution pool; 11. eluting the stirring shaft; 12. a discharge port of the elution pool; 13. a water pump; 14. an acid liquor discharge port; 15. feeding the acid solution into the pipe; 16. a net cage; 17. an upper cover; 18. a stirring rotating motor; 19. an acid liquor inlet; 21. an inlet of the crushing chamber; 22. a crushing roller shaft; 31. a moving track; 32. a transfer trolley; 321. a vehicle body; 322. a material pushing plate; 323. a material pushing motor; 324. an upper plug board; 325. a vehicle door push-pull motor; 326. a lower plug board; 327. a vehicle door; 33. a reciprocating motor; 34. a channel; 35. a movable door; 36. an opening; 51. a heating device; 52. conveying a steel belt; 61. extruding and stirring a motor; 62. a side hopper; 91. a cylinder; 92. a fixed platform; 93. a connecting shaft; 931. an anti-drop plate; 932. a convex strip; 94. a pressing plate; 95. and (4) a stirring piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A gasified coke production apparatus, as shown in FIG. 1, comprises a coking chamber 6, an elution chamber 1, a pulverization chamber 2, a transfer chamber 3, a drying chamber 5, and a blower 7; the elution chamber 1 is positioned at one side of the transfer chamber 3, the crushing chamber 2, the transfer chamber 3, the drying chamber 5 and the coking chamber 6 are sequentially communicated, a guide plate 4 is arranged between the crushing chamber 2 and the transfer chamber 3 at an interval, and the guide plate 4 is obliquely arranged downwards;
the strong acid elution treatment can be carried out in the elution chamber 1, metal mineral substances in the raw materials for producing the gasified coke are removed, generally, the raw materials for producing the gasified coke are mostly low-rank coals, the metal mineral substances contained in various low-rank coals are various in types, and specific components of the low-rank coals are difficult to determine, so that the elution chamber 1 is arranged for pretreatment in order to avoid blocking the metal mineral substances which have influence on pyrolysis;
as shown in fig. 1, an elution tank 10 supported by legs is arranged in an elution chamber 1, the elution tank 10 is a main place for strong acid treatment, a net cage 16 is arranged in the elution tank 10, the net cage 16 is made of a metal screen with 3-5mm mesh openings, raw materials produced by gasification coke are put into the net cage 16, and after the strong acid elution treatment is completed, the net cage 16 and the raw materials are taken out together, so that the operation is more convenient. The top of the elution chamber 1 is provided with a reversible upper cover 17, the upper cover 17 is provided with a feed hopper 8 communicated with the elution chamber 1, and the feed hopper 8 is aligned with the elution tank 10, namely aligned with a net cage 16 placed in the elution tank 1, so that the gasified coke production raw materials can smoothly fall into the net cage; meanwhile, an acid liquid inlet 19 is formed in the upper cover 17, the acid liquid inlet 19 is also aligned with the stripping tank 10, namely aligned with the net cage 16 placed in the elution tank 1, and strong acid eluent is filled into the elution tank 10 through the acid liquid inlet 19; for strong acid eluent, the strong acid eluent needs to be replaced after being used for a plurality of times, so that an elution pool discharge port 12 is formed in one side of an elution pool 10, and an acid liquor discharge port 14 is formed in one side of an elution chamber 1. In addition, the other side of the elution pool 10 is also communicated with a water pump 13 through an acid liquor feeding pipe 15 and is mainly used for cleaning the elution chamber 1, when the elution chamber 1 is cleaned, cleaning water can flow into the feed hopper 8 and the acid liquor inlet 19, the cleaning water flows into the elution chamber 1 through the elution pool discharge port 12 in the elution pool 10, and in order to enable the cleaning water to be cleaned for multiple times, the water pump 13 pumps the cleaning water into the elution pool 10 to repeatedly clean for multiple times. In addition, in order to improve the elution effect of the strong acid eluent, an elution rotating motor 18 is further installed on the upper cover 17, and the elution rotating motor 18 is connected with an elution stirring shaft 11 and extends into the net cage 16 to stir.
The gasification coke production raw material after strong acid treatment is transferred to the grinding chamber 2, as shown in fig. 1 and 2, the top end of the grinding chamber 2 is provided with a grinding chamber inlet 21, two meshed grinding roller shafts 22 are installed in the grinding chamber 2, and the grinding roller shafts 22 are mutually extruded to grind the gasification coke production raw material;
the gasified coke production raw material is crushed and then enters the transfer chamber 3 for transferring, a guide plate 4 is arranged between the crushing chamber 2 and the transfer chamber 3 at an interval, a transfer trolley 32 arranged in the transfer chamber 3 is rotated by an opening of the guide plate 4, and the crushed raw material can quickly and efficiently fall into the transfer trolley 32 under the guide action of the guide plate 4;
a moving track is arranged on the ground of the transfer chamber 3, the transfer trolley 32 is controlled by a controller and can move along the moving track 31, meanwhile, as shown in fig. 2, an opening 36 for communicating the transfer chamber 3 with the drying chamber 5 is arranged between the transfer chamber 3 and the drying chamber 5, a moving door 35 is arranged at the opening 36, and the moving door 35 is fixedly connected with a reciprocating motor 33; a channel 34 is formed in the wall separating the transit chamber 3 and the drying chamber 5, the reciprocating motor 33 is installed in the channel 34, and the opening or closing of the movable door 35 is controlled by the reciprocating motor 33; for the transfer trolley 32, the initial point is positioned below the guide plate 4, and after the transfer trolley 32 is filled with raw materials, the transfer trolley moves forwards to the opening 36 along the moving track 31;
as shown in fig. 3, which is a schematic view of a specific structure of the transfer cart 32, the transfer cart 32 includes a cart body 321, and a top of the cart head 321 is an open opening for receiving raw materials conveniently; the side wall of the vehicle body 321 facing the opening 36 is provided with a vehicle door 327, the vehicle door 327 is fixedly connected with a vehicle door push-pull motor 325, the push-pull motor 325 controls the opening or closing of the vehicle door 327, the upper side of the vehicle door 327 is provided with an upper insertion plate 324, the lower side of the vehicle door 327 is provided with a lower insertion plate 326, the upper insertion plate 324 and the lower insertion plate 326 are both vertically connected to the vehicle body 321, and the maximum distance h between the upper insertion plate 324 and the lower insertion plate 326 is consistent with the opening height of the opening 36, so that when the transfer trolley 32 transfers crushed raw materials, the upper insertion plate and the lower insertion plate can be inserted into the opening 36, meanwhile, a pushing plate 323 is arranged inside the vehicle body 321 and connected with a pushing motor 322, and the pushing motor 322 pushes the pushing plate 323 to send the crushed raw materials in the transfer trolley 32.
As shown in fig. 1, a heating device 51 and a conveying steel belt 52 are arranged in the drying chamber 5, the heating device 51 adopts a microwave generator and is fixedly installed on the top wall of the drying chamber 5, and microwave heating drying is adopted, so that the drying effect is good, and the drying speed is very high; the conveying steel belt 52 is positioned below the heating device 51 and is arranged obliquely; the conveyor belt 52 continues to feed the dried material into the coking chamber 6.
In the coking chamber 6, it is the main place of the semi-coke producing and coking stage of the gasified coke, on the basis of the existing coke oven, the invention gasifies the coke producing device, there is extrusion stirring mechanism 9 in its coking chamber 6, the extrusion stirring mechanism 9 connects with the extrusion stirring motor 61, the extrusion stirring motor 61 is installed above the coking chamber 6;
the extruding and stirring mechanism 9 is used for tamping and stirring operations, as shown in fig. 4, which is a schematic structural diagram of the extruding and stirring mechanism 9, and the extruding and stirring mechanism 9 includes a fixed platform 92, an extruding plate 94 and a stirring member 95; the fixed platform 92 is fixedly connected with the extrusion stirring motor 61, the cylinder 91 is installed on the fixed platform 92, a piston of the cylinder 91 penetrates through the fixed platform 92 and is fixedly connected with the extrusion plate 94, the extrusion plate 94 is fixedly connected with a connecting shaft 93, and the connecting shaft 93 penetrates through the fixed platform 92 upwards and is inserted into a motor shaft of the extrusion stirring motor 61; a plurality of stirring members 95 are provided, and the plurality of stirring members are fixedly connected to the pressing plate 94 along the circumferential direction of the pressing plate 94;
the connecting shaft 93 is inserted into a motor shaft of the extrusion stirring motor 61, the extrusion plate 94 is pulled to move up and down under the driving of the cylinder 91, in order to prevent the connecting shaft 93 from separating from the motor shaft of the extrusion stirring motor 61, as shown in fig. 5, an anti-drop plate 931 is fixedly arranged at the top end of the connecting shaft 93, and a limiting retaining ring for blocking the anti-drop plate 931 is fixedly arranged in the motor shaft of the extrusion stirring motor 61 in a surrounding manner; meanwhile, the extrusion stirring mechanism 9 is fixedly connected with the fixed platform 92 and is connected with the extrusion plate 94 through the air cylinder 91, so that the extrusion plate 94 can drive the stirring piece 95 to rotate under the action of the extrusion stirring motor 61, and the stirring function is realized; in addition, in order to reduce the shaking of the extrusion plate 94 and the stirring member 95 during rotation, as shown in fig. 5, a plurality of protruding strips 932 are further longitudinally arranged on the connecting shaft 93, and a slot matched with the protruding strips 932 is formed inside a motor shaft of the extrusion stirring motor 61. In addition, a side hopper 62 communicating with the coking chamber 6 is installed on the side wall of the coking chamber 6, and the side hopper 62 facilitates the addition of pyrolysis catalyst, binder, etc.
For the gasified coke production device, the blower 7 is arranged above the drying chamber 5 or the coking chamber 6, the blower 7 sends hot air and is respectively communicated with a first air nozzle 71 and a second air nozzle 72, the first air nozzle 71 is positioned in the crushing chamber 2, and the second air nozzle 72 is positioned in the coking chamber 6; the first air nozzle 71 performs primary hot air drying on the crushed raw materials; the second air jet 72 promotes coking treatment in the coking chamber 6, and the like.
The specific working method of the gasified coke production device disclosed by the invention comprises the following steps of:
preparing raw materials for producing gasified coke in advance, wherein the raw materials are various low-rank coals, and meanwhile, pouring sufficient strong acid eluent into an elution pool 10 from an acid liquor inlet 19 in advance;
step two, putting a plurality of low-rank coals into the net cage 16 from the feed hopper 8, wherein the net cage 16 is made of a metal screen with 3-5mm sieve pores, and is soaked in the strong acid eluent in the elution pool 10, so that the plurality of low-rank coals are eluted by the strong acid eluent, and the metal oxides in the plurality of low-rank coals are removed, and the metal oxides are prevented from interfering the pyrolysis process; in the elution process of the strong acid eluent, the elution stirring shaft 11 is continuously stirred to promote the elution process; the selected low-rank coal can be lean coal, poor lean coal, coking coal, gas coal and other low-rank coal, so that the utilization of the low-rank coal is effectively realized;
step three, after the elution treatment, taking out the net cage 16, transferring a plurality of low-rank coals to the inlet 21 of the crushing chamber, and leading the low-rank coals to enter the crushing chamber 2 from the inlet 21 of the crushing chamber and to be extruded and crushed by the crushing roller shaft 22;
step four, the crushed low-rank coal falls downwards under the action of gravity and quickly falls into the transfer trolley 32 along the limited direction of the guide plate 4, and in the process of falling downwards, the first air injection head 71 continuously blows hot air into the crushing chamber 2 so as to remove moisture on the surfaces of the crushed low-rank coal;
step five, after the transfer trolley 32 is filled with the crushed low-rank coals, the transfer trolley moves forwards along the moving track and sends the crushed low-rank coals to a conveying steel belt 52 in the drying chamber 5 at a specified position, the conveying steel belt 52 continuously transports the raw materials forwards, and meanwhile, the heating device 51 heats the temperature in the drying chamber 5 to 250-300 ℃, so that the deep drying and preheating of the raw materials on the conveying steel belt 52 are realized;
step six, after drying and preheating are completed, the conveying steel belt 52 conveys the raw materials into the coking chamber 6, the temperature in the coking chamber 6 is firstly raised to 500-600 ℃ so as to soften various low-rank coals, in the process, the adhesive and the pyrolysis catalyst for producing the gasified cokes are added from the side hopper 62, and the extrusion stirring mechanism 9 continuously rotates and stirs to fully mix various low-rank coals with the adhesive and the pyrolysis catalyst; the adhesive can be selected from asphalt organic matters, and the pyrolysis catalyst can be selected from calcium oxide, potassium oxide, aluminum oxide and the like;
seventhly, after reacting for 5-8 hours at the temperature of 500-600 ℃, uniformly raising the temperature in the coking chamber 6 to 900 ℃ at intervals of 5 ℃, keeping the temperature condition of 900 ℃ for 3-5 hours, stopping stirring by rotating the stirring mechanism 9 in the process, and continuously hammering and tamping by the rotating stirring mechanism 9 to obtain a gasified coke primary product;
and step eight, finally, conveying the primary gasified coke product into a dry quenching furnace for sealing and dry quenching treatment to obtain the gasified coke.
According to the device and the method for producing the gasified coke, disclosed by the invention, the low-rank coal is used as a production raw material, so that the high-efficiency utilization of resources is realized, the device and the method are specially used for producing the gasified coke, the production characteristics of the gasified coke are reasonably designed, the high-efficiency and high-quality production is realized, the conversion and upgrading of the coking industry are driven by the production of the gasified coke, and the device and the method have good development significance.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.

Claims (8)

1. A gasified coke production apparatus comprising a coking chamber (6), characterized in that: the device is characterized by further comprising an elution chamber (1), a crushing chamber (2), a transfer chamber (3), a drying chamber (5) and an air blower (7), wherein the elution chamber (1) is located on one side of the transfer chamber (3), the crushing chamber (2), the transfer chamber (3), the drying chamber (5) and a coking chamber (6) are sequentially communicated, a guide plate (4) is arranged between the crushing chamber (2) and the transfer chamber (3) at an interval, and the guide plate (4) is obliquely arranged downwards;
an elution pool (10) supported by supporting legs is arranged in the elution chamber (1), a net cage (16) is arranged in the elution pool (10), one side of the elution pool (10) is provided with an elution pool discharge port (12), and the other side of the elution pool (10) is communicated with a water pump (13) through an acid liquor feeding pipe (15); the top of the elution chamber (1) is provided with a reversible upper cover (17), the upper cover (17) is provided with a feed hopper (8) communicated with the elution chamber (1), the upper cover (17) is provided with an acid liquid inlet (19), and one side of the elution chamber (1) is provided with an acid liquid outlet (14);
a crushing chamber inlet (21) is formed in the top end of the crushing chamber (2), two meshed crushing roller shafts (22) are installed in the crushing chamber (2), and the crushing roller shafts (22) are mutually extruded to crush gasified coke production raw materials;
a transfer trolley (32) is arranged in the transfer chamber (3), and the transfer trolley (32) moves along a moving track (31) arranged on the ground of the transfer chamber (3); a heating device (51) and a conveying steel belt (52) are arranged in the drying chamber (5), the heating device (51) adopts a microwave generator and is fixedly installed on the top wall of the drying chamber (5), and the conveying steel belt (52) is positioned below the heating device (51) and is obliquely arranged; an extrusion stirring mechanism (9) is arranged in the coking chamber (6), the extrusion stirring mechanism (9) is connected with an extrusion stirring motor (61), the extrusion stirring motor (61) is arranged above the coking chamber (6), and a side charging hopper (62) communicated with the coking chamber (6) is arranged on the side wall of the coking chamber (6);
the air blower (7) is arranged above the drying chamber (5) or the coking chamber (6), the air blower (7) is respectively communicated with a first air nozzle (71) and a second air nozzle (72), the first air nozzle (71) is positioned in the crushing chamber (2), and the second air nozzle (72) is positioned in the coking chamber (6).
2. The gasified coke production apparatus according to claim 1, wherein: still install elution rotating electrical machines (18) on upper cover (17), elution rotating electrical machines (18) are connected with elution (mixing) shaft (11) and extend to in net case (16) to stir.
3. The gasified coke production apparatus according to claim 2, wherein: an opening (36) which enables the transfer chamber (3) and the drying chamber (5) to be communicated is formed between the transfer chamber and the drying chamber, a movable door (35) is installed at the opening (36), and the movable door (35) is fixedly connected with a reciprocating motor (33); a channel (34) is formed in the wall separating the transfer chamber (3) and the drying chamber (5), and a reciprocating motor (33) is arranged in the channel (34).
4. The gasified coke production apparatus according to claim 3, wherein: the transfer trolley (32) comprises a trolley body (321), a material pushing plate (323) is arranged inside the trolley body (321), and the material pushing plate (323) is connected with a material pushing motor (322); and a vehicle door (327) is arranged on the side wall of the vehicle body (321) facing the opening (36), and the vehicle door (327) is fixedly connected with a vehicle door push-pull motor (325).
5. The gasified coke production apparatus according to claim 4, wherein: an upper flashboard (324) is arranged on the upper side of the vehicle door (327), a lower flashboard (326) is arranged on the lower side of the vehicle door (327), the upper flashboard (324) and the lower flashboard (326) are vertically connected to the vehicle body (321), and the maximum distance h between the upper flashboard (324) and the lower flashboard (326) is consistent with the opening height of the opening (36).
6. The gasified coke production apparatus according to claim 5, wherein: the extrusion stirring mechanism (9) comprises a fixed platform (92), an extrusion plate (94) and a stirring piece (95);
the fixed platform (92) is fixedly connected with the extrusion stirring motor (61), an air cylinder (91) is mounted on the fixed platform (92), a piston of the air cylinder (91) penetrates through the fixed platform (92) and is fixedly connected with an extrusion plate (94), the extrusion plate (94) is fixedly connected with a connecting shaft (93), and the connecting shaft (93) upwards penetrates through the fixed platform (92) and is inserted into a motor shaft of the extrusion stirring motor (61); the stirring pieces (95) are arranged in a plurality, and the stirring pieces are fixedly connected to the extrusion plate (94) along the circumferential direction of the extrusion plate (94).
7. The gasified coke production apparatus according to claim 6, wherein: an anti-falling plate (931) is fixedly arranged at the top end of the connecting shaft (93), and a limiting retaining ring for blocking the anti-falling plate (931) is fixedly arranged in a motor shaft of the extrusion stirring motor (61) in a surrounding mode; still vertically be provided with many sand grips (932) on connecting axle (93), the inside slot of seting up with sand grip (932) assorted of motor shaft of extrusion agitator motor (61).
8. A method of operating the gasified coke production apparatus according to any one of claims 1 to 7, wherein: the production method specifically comprises the following steps:
preparing raw materials for producing gasified coke in advance, wherein the raw materials are various low-rank coals, and meanwhile, pouring sufficient strong acid eluent into an elution pool (10) from an acid liquid inlet (19) in advance;
secondly, putting a plurality of low-rank coals into a net cage (16) from a feed hopper (8), wherein the net cage (16) is made of a metal screen with 3-5mm sieve pores, and is soaked in strong acid eluent in an elution pool (10) to elute the plurality of low-rank coals by the strong acid eluent, so that metal minerals in the plurality of low-rank coals are removed, and the interference of the metal minerals on a pyrolysis process is avoided; in the elution process of the strong acid eluent, the elution stirring shaft (11) is continuously stirred to promote the elution process;
step three, after the elution treatment, taking out the net cage (16), transferring a plurality of low-rank coals to a grinding chamber inlet (21), and leading the low-rank coals to enter the grinding chamber (2) from the grinding chamber inlet (21) and be extruded and ground by a grinding roller shaft (22);
fourthly, the crushed low-rank coals fall downwards under the action of gravity and quickly fall into a transfer trolley (32) along the limited direction of a guide plate (4), and a first air injection head (71) continuously blows hot air into the crushing chamber (2) in the process of falling downwards so as to remove moisture on the surfaces of the crushed low-rank coals;
step five, after the transfer trolley (32) is filled with the crushed low-rank coals, the transfer trolley moves forwards along the moving track and sends the crushed low-rank coals to a conveying steel belt (52) in the drying chamber (5) at a specified position, the conveying steel belt (52) continuously transports the raw materials forwards, and meanwhile, the heating device (51) heats the temperature in the drying chamber (5) to 250-300 ℃ to realize deep drying and preheating of the raw materials on the conveying steel belt (52);
step six, after drying and preheating are completed, the raw materials are sent into a coking chamber (6) by a conveying steel belt (52), the temperature in the coking chamber (6) is firstly raised to 500-600 ℃ so as to soften various low-rank coals, in the process, an adhesive and a pyrolysis catalyst for producing the gasified cokes are added from a side feeding hopper (62), and an extrusion stirring mechanism (9) is continuously and rotationally stirred so that various low-rank coals are fully mixed with the adhesive and the pyrolysis catalyst;
seventhly, after reacting for 5-8 hours at the temperature of 500-600 ℃, uniformly raising the temperature in the coking chamber (6) to 900 ℃ at intervals of 5 ℃, keeping the temperature condition of 900 ℃ for 3-5 hours, stopping stirring by the rotary stirring mechanism (9) in the process, and continuously beating and tamping by the rotary stirring mechanism (9) to obtain a gasified coke primary product;
and step eight, finally, conveying the primary gasified coke product into a dry quenching furnace for sealing and dry quenching treatment to obtain the gasified coke.
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