CN205668944U - A kind of preparation system of carbide - Google Patents
A kind of preparation system of carbide Download PDFInfo
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- CN205668944U CN205668944U CN201620557182.7U CN201620557182U CN205668944U CN 205668944 U CN205668944 U CN 205668944U CN 201620557182 U CN201620557182 U CN 201620557182U CN 205668944 U CN205668944 U CN 205668944U
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Abstract
This utility model provides the preparation system of carbide.This system includes: pulverized coal pyrolysis unit, cooling unit, mixed cell, forming unit and carbide smelt unit.Pulverized coal pyrolysis unit is provided with coal powder entrance, raw coke oven gas outlet and high-temperature semi-coke outlet；Cooling unit is provided with raw coke oven gas entrance and pyrolysis oil water out, and raw coke oven gas entrance exports with the raw coke oven gas of pyrolysis unit and is connected；Mixed cell is provided with high-temperature semi-coke entrance, pyrolysis oil water inlet, calcium lime powder entrance and mixture outlet, and high-temperature semi-coke entrance exports with the high-temperature semi-coke of pyrolysis unit and is connected, and pyrolysis oil water inlet is connected with the pyrolysis oil water out of cooling unit；Forming unit is provided with mixture inlet and the outlet of type ball, and mixture inlet is connected with the mixture outlet of mixed cell；Carbide is smelted unit and is provided with type ball entrance and carbide outlet, and type ball entrance exports with the type ball of forming unit and is connected.The preparation system technique of the carbide that this utility model provides is simple, and the carbide quality prepared is good.
Description
Technical field
This utility model belongs to the preparation field of carbide, is specifically related to the preparation system of a kind of carbide.
Background technology
Along with the development of coal mining industries up-to-dateness, in raw coal, the ratio of fine coal is up to 70%-80%, but current
Calcium carbide industry, major part is all with block semi-coke as raw material, thus causes lump coal resource provisioning nervous, and fine coal overstocks in a large number, if
It is improper to control, then can produce substantial amounts of dust, pollute air and subsoil water.Use low-order coal and powder in powder
Quick lime is blended molding and prepares the new trend that carbide raw materials for metallurgy is calcium carbide industry development.
Utility model content
This utility model provides a kind of preparation system and the method for carbide, and the purpose of this system and method is to solve pyrolysis oil
Water difficult treatment, raising pyrolysis product added value, make process costs reduction, carbide energy consumption reduce simultaneously.
The preparation system of the carbide that this utility model provides includes pulverized coal pyrolysis unit, cooling unit, mixed cell, molding
Unit and carbide smelt unit；Wherein, described pulverized coal pyrolysis unit is provided with coal powder entrance, raw coke oven gas exports and high-temperature semi-coke goes out
Mouthful；Described cooling unit is provided with the famine of raw coke oven gas entrance and pyrolysis oil water out, described raw coke oven gas entrance and described pyrolysis unit
Gas exit is connected；Described mixed cell is provided with high-temperature semi-coke entrance, pyrolysis oil water inlet, calcium lime powder entrance and mixture and goes out
Mouthful, the high-temperature semi-coke of described high-temperature semi-coke entrance and described pyrolysis unit exports and is connected, described pyrolysis oil water inlet and described cold
But the pyrolysis oil water out of unit is connected；Described forming unit is provided with mixture inlet and the outlet of type ball, described mixture inlet
It is connected with the mixture outlet of described mixed cell；Described carbide is smelted unit and is provided with type ball entrance and carbide outlet, described type
Ball entrance exports with the type ball of described forming unit and is connected.
Further, described pulverized coal pyrolysis unit is additionally provided with exhanst gas outlet；Described system also includes drying unit, described dry
Dry unit is closed conveying device, is provided with wet type ball entrance, the outlet of drying type ball and gas approach, described wet type ball entrance and institute
The type ball outlet stating forming unit is connected, and the type ball entrance that the outlet of described drying type ball smelts unit with described carbide is connected, institute
State gas approach to be connected with the exhanst gas outlet of described pulverized coal pyrolysis unit.
Further, described system also includes that feed material preparation units, described feed material preparation units include the broken dress of coal
Put and quick lime breaker；Described coal breaker is provided with discharge, described discharge and described pulverized coal pyrolysis unit
Coal powder entrance be connected；Described quick lime breaker is provided with calcium lime powder outlet, and the outlet of described calcium lime powder mixes with described
The calcium lime powder entrance of unit is connected.
In said system, described pulverized coal pyrolysis unit is coal fast pyrogenation stove.
In said system, described cooling unit is device for cooling between condensed water.
In said system, described mixed cell is agitating device.
In said system, described forming unit is ball press.
In said system, it is furnace of calcium carbide that described carbide smelts unit.
Additionally, in said system, the high-temperature semi-coke outlet of described pulverized coal pyrolysis unit and the high temperature half of described mixed cell
Burnt entrance is connected by heat-insulation conveying device.
Pyrolysis profit is directly prepared carbide raw material as binding agent by the technical scheme that this utility model provides, and solves heat
The problem solving profit difficult treatment, also reduces the cost of binding agent.Directly make additionally, tar in pyrolysis profit is the most purified
With, its utilization rate can be improved.By being pyrolyzed the recycling of profit, when tar is pyrolyzed again, become pyrolysis gas by second pyrolysis,
Improve the added value of pyrolysis product.The flue gas produced during pyrolysis is back to use drying unit as dry medium, has both improve heat
Amount utilization rate, it also avoid pollution environment, also reduces process costs.Calcium carbide furnace gas is back to pulverized coal pyrolysis unit as fuel
In, also can reduce process costs, reduce environmental pollution.
The preparation system of the carbide that this utility model provides, not only technique is simple, and the carbide quality prepared is good.
Accompanying drawing explanation
Fig. 1 is the process chart preparing carbide in this utility model embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in more details, with
Just the advantage that better understood when scheme of the present utility model and various aspects thereof.But, specific implementations described below side
Formula and embodiment are only descriptive purposes rather than to restriction of the present utility model.
As it is shown in figure 1, this utility model embodiment discloses a kind of system preparing carbide.In this utility model embodiment
The system preparing carbide includes: feed material preparation units 1, pulverized coal pyrolysis unit 2, cooling unit 3, mixed cell 4, forming unit
5, carbide smelts unit 6 and drying unit 7.Wherein, feed material preparation units 1 and drying unit 7 are not necessary device, visually
Field condition and concrete technique decide whether to increase in system.
Feed material preparation units 1 includes warehouse 13, quick lime in the middle of coal breaker 11, quick lime breaker 12, coal
Middle warehouse 14, coal helix transporting device 15 and quick lime helix transporting device 16.Warehouse 13 and in the middle of coal breaker 11, coal
Coal helix transporting device 15 is sequentially connected, and middle low-order coal enters after coal breaker 11 is broken into coal dust and is stored in warehouse in the middle of coal
In 13, then sent in pulverized coal pyrolysis unit 2 by coal helix transporting device 15.In the middle of quick lime breaker 12, quick lime
Warehouse 14 and quick lime helix transporting device 16 are sequentially connected, and quick lime enters quick lime breaker 12 and is broken into quick lime
Powder, calcium lime powder is stored in the middle warehouse 14 of quick lime, then sends into mixed cell 4 with quick lime helix transporting device 16
In.Feed material preparation units 1 can only have coal breaker 11 and quick lime breaker 12, but in order to improve production efficiency,
Can be plus warehouse 14, coal helix transporting device 15 and quick lime helix transporting device 16 in the middle of warehouse 13, quick lime in the middle of coal.
In the present embodiment, pulverized coal pyrolysis unit 2 is coal fast pyrogenation stove.In Fig. 1,21 is coal powder entrance, and 22 is raw coke oven gas
Outlet, 23 export for high-temperature semi-coke.Coal powder entrance 21 is connected with the outlet of coal helix transporting device 15.Also can produce after pulverized coal pyrolysis
Raw flue gas, pulverized coal pyrolysis unit 2 is additionally provided with exhanst gas outlet.
The cooling unit 3 of the present embodiment is device for cooling between condensed water, be provided with raw coke oven gas entrance 31, pyrolysis oil water out 32,
Pyrolysis gas outlet 33, condensing water inlet 34, condensation-water drain 35.Raw coke oven gas entrance 31 and the pyrolysis famine coal of pulverized coal pyrolysis unit 2
Gas outlet 22 is connected.
Mixed cell 4 is high intensity agitating device, can be kneader can also be spiral mixer.Kneader and spiral
Batch mixer is conventional high adhesive material agitating device, and simple in construction, reliable, good mixing effect, production cost are low.In Fig. 1,
41 is high-temperature semi-coke entrance, and 42 is pyrolysis oil water inlet, and 43 is calcium lime powder entrance, and 44 is agitating device, and 45 go out for mixture
Mouthful.High-temperature semi-coke entrance 41 is exported 23 with the high-temperature semi-coke of pulverized coal pyrolysis unit 2 and is connected by heat-insulation conveying device, insulation conveying
Device can be heat-preserving container or insulation carrier bar；Pyrolysis oil water inlet 42 is connected with the pyrolysis oil water out 32 of cooling unit 3；Calculogenesis
Ashes entrance 43 is connected with the outlet of quick lime helix transporting device 16.Use insulation conveying, make full use of the aobvious of high-temp solid
Heat, reduces energy consumption.
The forming unit 5 of the present embodiment is ball press, including mixture warehouse 51 with to squeezing double roller 52.Mixture warehouse 51
The mixture sent here from mixed cell 4 for storage, to squeezing double roller 52 for type ball forming.The entrance of mixture warehouse 51 is with mixed
The mixture outlet 45 closing unit 4 is connected.
In the present embodiment, it is furnace of calcium carbide that carbide smelts unit 6, is provided with high temperature pelletizing entrance 61, carbide outlet 62 and carbide
Furnace gas export 63.
Drying unit 7 alternatively referred to as type ball transporting chain plate, is closed conveying device, smelts single type ball is transported to carbide
Can complete to be dried during unit 6.Type ball quickly, simply, will not be polluted again by this drying mode.Owing to being airtight
Conveyer device, dried type ball has uniform temperature, can reduce the energy consumption that carbide is smelted.Drying unit 7 be provided with wet type ball entrance,
The outlet of drying type ball and gas approach.Wet type ball entrance is connected with the outlet of the crowded double rollers 52 to forming unit 5, and drying type ball goes out
The high temperature pelletizing entrance 61 that mouth smelts unit 6 with carbide is connected, and gas approach is connected with the exhanst gas outlet of pulverized coal pyrolysis unit 2.
Drying unit 7 uses the flue gas of pulverized coal pyrolysis unit 2 generation as dry medium.
Pyrolysis profit is directly prepared carbide raw material as binding agent by this utility model, solves pyrolysis profit difficult treatment
Problem, also reduce the cost of binding agent.Additionally, the most purified direct use of tar in pyrolysis profit, can be improved it
Utilization rate.By being pyrolyzed the recycling of profit, when tar is pyrolyzed again, pyrolysis gas can be become by second pyrolysis, improve pyrolysis and produce
The added value of product.
Water can play the effect of moistening during pulverized coal forming, but can affect the effect of bonding too much.In pyrolysis profit
Water content few, appropriate moisture can reduce coal dust formed because of mutual extruding in forming process with moistening coal grain surface
Frictional resistance, thus beneficially combine closely between coal dust.
The volatile matter of middle low-order coal is higher, if directly entering furnace of calcium carbide, not only results in the waste of resource, and can be because of electricity
The substantial increase of stone furnace gas causes the instability of calcium carbide production process.In this utility model, first middle low-order coal is pyrolyzed, will
Volatile matter in coal extracts, then prepares carbide raw materials for metallurgy.In this utility model, volatile matter pyrolysis of coal produced passes through
The liquid that condensation obtains referred to as is pyrolyzed profit, predominantly tar and water.Pyrolysis profit is stickum, purifies relatively difficult.
In this utility model, type ball is not necessarily required to through being dried before entering furnace of calcium carbide.Dried type ball water content
Few, calcium carbide furnace gas can be reduced, be conducive to smelting carbide.Produce additionally, the dry medium of drying unit 7 is pulverized coal pyrolysis unit 2
Flue gas.The recycling of flue gas, had both improve its heat utilization ratio, it also avoid pollution environment, also reduces process costs.
In this utility model, calcium carbide furnace gas is back in pulverized coal pyrolysis unit 2 directly as fuel.
The main component of calcium carbide furnace gas is CO, the most a small amount of hydrogen, tar and dust.Due to containing tar, calcium carbide furnace gas
Purification, carried into a difficult problem.This utility model directly using from furnace of calcium carbide out, the most purified calcium carbide furnace gas returns as fuel
In pulverized coal pyrolysis unit 2, it is used for being pyrolyzed coal dust, process costs can be reduced, reduce environmental pollution.Tar in calcium carbide furnace gas
Again become pyrolysis gas by second pyrolysis during pyrolysis, improve the added value of pyrolysis furnace gas.
Below in conjunction with specific embodiment, the technical solution of the utility model is described.
In following embodiment, institute's taking technique condition value is exemplary, in its desirable numerical range book as indicated above
Shown in.
Middle low-order coal used by following embodiment is jet coal.With CaC in carbide2Content and gas forming amount characterize prepared
The quality of carbide, method therefor is the detection method that the industry is conventional.
Embodiment 1
By coal breaker 11, jet coal being crushed to maximum particle size is 1mm, by quick lime breaker 12
It is 3mm that lump lime is crushed to maximum particle size.Long flame coal dust and calcium lime powder after Po Sui are separately stored in coal
Between in the middle of warehouse 13 and quick lime in warehouse 14.By coal helix transporting device 15 and quick lime helix transporting device 16 by quality
Deliver to respectively in coal fast pyrogenation stove and kneader than long flame coal dust and the calcium lime powder for 0.8:1.Long flame coal dust is 650 DEG C of temperature
It is pyrolyzed 60min under degree, prepares pyrolysis raw coke oven gas, flue gas and high-temperature semi-coke.Between pyrolysis raw coke oven gas condensed water after device for cooling condensation
Obtaining pyrolysis gas and pyrolysis profit, pyrolysis gas stores after further purified treatment.High-temperature semi-coke is sent into by heat-preserving container and is mediated
In machine, and calcium lime powder is stirring evenly and then adding into the pyrolysis profit that device for cooling between condensed water is sent here, the addition of pyrolysis profit
For coal dust and the 3% of the gross mass of calcium lime powder.Again prepare mixture after mix homogeneously.Mixture is sent in ball press,
Under pressure is 10MPa extruded, prepare type ball.Type ball is dried by type ball transporting chain plate, type ball transporting chain plate institute
Dry medium be the flue gas produced after long flame pulverized coal pyrolysis.Dried type ball is sent in furnace of calcium carbide, is 2200 in temperature
Carry out carbide smelting at DEG C, prepare carbide liquid and calcium carbide furnace gas.Carbide liquid forms carbide after cooling, calcium carbide furnace gas directly as
Fuel is back in coal fast pyrogenation stove.CaC in detection gained carbide2Content and gas forming amount.
The CaC of the carbide that the present embodiment prepares2Content be 80.4, gas forming amount is 299L/kg.
Embodiment 2
By coal breaker 11, jet coal being crushed maximum particle size is 0.5mm, by quick lime breaker 12
It is 1mm that lump lime is crushed to maximum particle size.Long flame coal dust and calcium lime powder after Po Sui are separately stored in coal
Between in the middle of warehouse 13 and quick lime in warehouse 14.By coal helix transporting device 15 and quick lime helix transporting device 16 by quality
Deliver to respectively in coal fast pyrogenation stove and spiral mixer than long flame coal dust and the calcium lime powder for 1.2:1.Long flame coal dust is 900
It is pyrolyzed 20min at a temperature of DEG C, prepares pyrolysis raw coke oven gas, flue gas and high-temperature semi-coke.Between pyrolysis raw coke oven gas condensed water, device for cooling is cold
Obtaining pyrolysis gas and pyrolysis profit after Ning, pyrolysis gas stores after further purified treatment.High-temperature semi-coke is sent by insulation carrier bar
Enter in spiral mixer, and calcium lime powder is stirring evenly and then adding into the pyrolysis profit that device for cooling between condensed water is sent here, pyrolysis oil
The addition of water is the 10% of the gross mass of coal dust and calcium lime powder.Again prepare mixture after mix homogeneously.Mixture is sent
Enter in ball press, extruded under pressure is 25MPa, prepare type ball.Type ball is dried by type ball transporting chain plate, type ball
Dry medium used by transporting chain plate is the flue gas produced after long flame pulverized coal pyrolysis.Dried type ball is sent in furnace of calcium carbide,
Temperature is to carry out carbide smelting at 1800 DEG C, prepares carbide liquid and calcium carbide furnace gas.Carbide liquid forms carbide, furnace of calcium carbide after cooling
Gas is back in coal fast pyrogenation stove directly as fuel.CaC in detection gained carbide2Content and gas forming amount.
The CaC of the carbide that the present embodiment prepares2Content be 87.9, gas forming amount is 327L/kg.
From above-described embodiment, using the technical scheme that this utility model provides, prepared carbide quality is good.Additionally,
In above-described embodiment, the carbide appearance prepared place complete, broken is few, and the intensity of explanation type ball is high, smelts at the pyrolysis of type ball, carbide
During, the most broken.This technical scheme demonstrating this utility model offer from another point of view is relatively good.
To sum up, it can be deduced that, the technical scheme that this utility model provides is directly by electric as binding agent preparation for pyrolysis profit
Stone raw material, the problem solving pyrolysis profit difficult treatment, also reduce the cost of binding agent.Additionally, Jiao in pyrolysis profit
The most purified direct use of oil, can improve its utilization rate.By being pyrolyzed the recycling of profit, by two when tar is pyrolyzed again
Secondary it is cracked into pyrolysis gas, improves the added value of pyrolysis product.The flue gas produced during pyrolysis is back to use dry as dry medium
Unit, had both improve heat utilization ratio, it also avoid pollution environment, also reduces process costs.Calcium carbide furnace gas returns as fuel
In pulverized coal pyrolysis unit, also can reduce process costs, reduce environmental pollution.
The system and method preparing carbide that this utility model provides, not only technique is simple, with low cost, and prepares
Carbide quality good.
It should be noted that each embodiment above by reference to described by accompanying drawing is only in order to illustrate this utility model rather than limit
Make scope of the present utility model, it will be understood by those within the art that, without departing from spirit of the present utility model and model
The amendment on the premise of enclosing carried out this utility model or equivalent, all should contain within the scope of this utility model.
Additionally, unless stated otherwise, then all or part of of any embodiment can be in conjunction with the whole of any other embodiments or
Part uses.
Claims (9)
1. a preparation system for carbide, including: pulverized coal pyrolysis unit, cooling unit, mixed cell, forming unit and carbide smelting
Refining unit；
Described pulverized coal pyrolysis unit is provided with coal powder entrance, raw coke oven gas outlet and high-temperature semi-coke outlet；
Described cooling unit is provided with the famine of raw coke oven gas entrance and pyrolysis oil water out, described raw coke oven gas entrance and described pyrolysis unit
Gas exit is connected；
Described mixed cell is provided with high-temperature semi-coke entrance, pyrolysis oil water inlet, calcium lime powder entrance and mixture outlet, described height
Temperature semicoke entrance exports with the high-temperature semi-coke of described pyrolysis unit and is connected, described pyrolysis oil water inlet and the heat of described cooling unit
Solve profit outlet to be connected；
Described forming unit is provided with mixture inlet and the outlet of type ball, described mixture inlet and the mixture of described mixed cell
Outlet is connected；
Described carbide is smelted unit and is provided with type ball entrance and carbide outlet, and described type ball entrance goes out with the type ball of described forming unit
Mouth is connected.
System the most according to claim 1, it is characterised in that
Described pulverized coal pyrolysis unit is additionally provided with exhanst gas outlet；
Described system also includes that drying unit, described drying unit are closed conveying device, is provided with wet type ball entrance, drying type ball
Outlet and gas approach, the type ball of described wet type ball entrance and described forming unit exports and is connected, the outlet of described drying type ball and
Described carbide is smelted the type ball entrance of unit and is connected, and described gas approach is connected with the exhanst gas outlet of described pulverized coal pyrolysis unit.
System the most according to claim 1, it is characterised in that described system also includes feed material preparation units, described former
Material pretreatment unit includes coal breaker and quick lime breaker；
Described coal breaker is provided with discharge, and described discharge is connected with the coal powder entrance of described pulverized coal pyrolysis unit；
Described quick lime breaker is provided with calcium lime powder outlet, the outlet of described calcium lime powder and the quick lime of described mixed cell
Powder entrance is connected.
System the most according to claim 1, it is characterised in that described pulverized coal pyrolysis unit is coal fast pyrogenation stove.
System the most according to claim 1, it is characterised in that described cooling unit is device for cooling between condensed water.
System the most according to claim 1, it is characterised in that described mixed cell is agitating device.
System the most according to claim 1, it is characterised in that described forming unit is ball press.
System the most according to claim 1, it is characterised in that it is furnace of calcium carbide that described carbide smelts unit.
System the most according to claim 1, it is characterised in that the high-temperature semi-coke of described pulverized coal pyrolysis unit exports with described
The high-temperature semi-coke entrance of mixed cell is connected by heat-insulation conveying device.
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| CN201620557182.7U CN205668944U (en) | 2016-06-08 | 2016-06-08 | A kind of preparation system of carbide |
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| CN201620557182.7U CN205668944U (en) | 2016-06-08 | 2016-06-08 | A kind of preparation system of carbide |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477579A (en) * | 2016-11-16 | 2017-03-08 | 神雾环保技术股份有限公司 | A kind of dry shaping method of carbide raw material and its dedicated system |
| CN106495157A (en) * | 2016-11-16 | 2017-03-15 | 神雾环保技术股份有限公司 | The recycling system of semicoke heat and recoverying and utilizing method |
| CN106517204A (en) * | 2016-11-16 | 2017-03-22 | 神雾环保技术股份有限公司 | Special system and method for forming calcium carbide raw material |
| CN106590710A (en) * | 2016-11-21 | 2017-04-26 | 神雾环保技术股份有限公司 | Utilizing method and system of long flame coal |
| CN107265456A (en) * | 2017-07-20 | 2017-10-20 | 神雾环保技术股份有限公司 | The system and method that calcium carbide is prepared using solid waste pyrolysis |
| CN107285317A (en) * | 2017-07-20 | 2017-10-24 | 神雾环保技术股份有限公司 | A kind of system and method for preparing calcium carbide |
| CN107337208A (en) * | 2017-07-20 | 2017-11-10 | 神雾环保技术股份有限公司 | A kind of system and method that calcium carbide is produced using biomass pyrolytic |
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2016
- 2016-06-08 CN CN201620557182.7U patent/CN205668944U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477579A (en) * | 2016-11-16 | 2017-03-08 | 神雾环保技术股份有限公司 | A kind of dry shaping method of carbide raw material and its dedicated system |
| CN106495157A (en) * | 2016-11-16 | 2017-03-15 | 神雾环保技术股份有限公司 | The recycling system of semicoke heat and recoverying and utilizing method |
| CN106517204A (en) * | 2016-11-16 | 2017-03-22 | 神雾环保技术股份有限公司 | Special system and method for forming calcium carbide raw material |
| CN106590710A (en) * | 2016-11-21 | 2017-04-26 | 神雾环保技术股份有限公司 | Utilizing method and system of long flame coal |
| CN107265456A (en) * | 2017-07-20 | 2017-10-20 | 神雾环保技术股份有限公司 | The system and method that calcium carbide is prepared using solid waste pyrolysis |
| CN107285317A (en) * | 2017-07-20 | 2017-10-24 | 神雾环保技术股份有限公司 | A kind of system and method for preparing calcium carbide |
| CN107337208A (en) * | 2017-07-20 | 2017-11-10 | 神雾环保技术股份有限公司 | A kind of system and method that calcium carbide is produced using biomass pyrolytic |
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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu science and technology group Limited by Share Ltd Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: Beijing Shenwu Environment Energy Technology Group Co., Ltd. |
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Granted publication date: 20161102 Termination date: 20180608 |