CN1313578C - Bituminous fine coal transformation feeding method for gas generator and dedicated feeder therefor - Google Patents
Bituminous fine coal transformation feeding method for gas generator and dedicated feeder therefor Download PDFInfo
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- CN1313578C CN1313578C CNB2005100126231A CN200510012623A CN1313578C CN 1313578 C CN1313578 C CN 1313578C CN B2005100126231 A CNB2005100126231 A CN B2005100126231A CN 200510012623 A CN200510012623 A CN 200510012623A CN 1313578 C CN1313578 C CN 1313578C
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- China
- Prior art keywords
- gas generator
- tobacco powder
- producer gas
- capacity device
- powder coal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The present invention relates to a bituminous fine coal transformation feeding method for a gas generator and a dedicated feeder thereof. The feeding method comprises the following steps: adding bituminous fine coal into a feeding container; under the condition of isolating the outer air, hermetically injecting the bituminous fine coal into sintering equipment capable of hermetically heating the bituminous fine coal by the feeding container, and hermetically heating the bituminous fine coal to make the bituminous fine coal sintered into blocky semi coke; hermetically adding the semi coke into the gas generator by a conveying container hermetically connected between the sintering equipment and the gas generator under the condition that the isolated gas streams are communicated. The present invention realizes the direct utilization of the bituminous fine coal in small nitrogen fertilizer enterprises. The feeder of the present invention is composed of a bin feeder, a coke oven, a carbon collection bin and a discharge bin which are adapted from the top down, wherein the end opening of the discharge bin is connected with a feed inlet flange of the gas generator. The dedicated feeder can satisfy the special needs of the feeding method of the present invention.
Description
And dedicated feeder
Technical field
The present invention relates to the charging process and the equipment of producer gas generator in a kind of little nitrogen fertilizer production enterprise, specifically a kind of tobacco powder coal transformation feeding method and dedicated feeder of producer gas generator.
Background technology
In China existing little nitrogen fertilizer production enterprise, it is that raw material carries out gas making production with anthracite block coal or coke that the gas-making process of most of producer gas generators is still employing.In the today of being becoming tight coal supply day, can use fragmentary tobacco powder coal to use as the gas making raw material, then be one of hot issue of extremely being concerned about of little nitrogenous fertilizer enterprises.Though present gas-making process has molten poly-technology of ash and German CF8 The Application of Technology, these two kinds of technology are and have the diverse gas making novel process of gas-making process now, are not suitable for the application that China adopts the little nitrogenous fertilizer enterprises of intermittent type gas making production technique at present.And the investment height of these two kinds of new technology required equipmenies, technical sophistication coefficient and device control require also high, therefore also are difficult in the existing little nitrogenous fertilizer enterprises and apply.
Summary of the invention
Purpose of the present invention just provides a kind of tobacco powder coal transformation feeding method and dedicated feeder thereof of producer gas generator, with on the basis of the intermittent type gas-making process that adapts to existing manufacturing enterprise, reduces the gas making raw materials cost, improves economic benefit of enterprises.
The object of the present invention is achieved like this: the tobacco powder coal transformation feeding method of producer gas generator is: a, the tobacco powder coal is added one add in the material container; B, under the condition of isolated extraneous air, add material container by this and tobacco powder coal sealing ground is injected one can seal the agglomerating plant of heating it; C, the tobacco powder coal is sealed heating, make it to sinter into block semicoke by agglomerating plant; D, by the airtight transferring case that is connected between agglomerating plant and producer gas generator, under the condition of isolated air-flow intercommunication, semicoke sealing ground is added in the producer gas generator.
In charging process of the present invention, the sintering Heating temperature of tobacco powder coal should be controlled at more than 450 ℃ at least.Because have only when sintering temperature reaches more than 450 ℃, the tobacco powder coal just can sinter piece into.Can put into it and be used for gas making production in producer gas generator this moment, but the effect that gas making is produced is not good enough a bit.
In charging process of the present invention, the sintering Heating temperature of tobacco powder coal preferably is controlled at 650 °-720 ℃.When sintering temperature reached this temperature range, the tobacco powder coal can all go cigarette to become piece, transformed into semicoke (because the sintering temperature of coke is generally 1300 °-1400 ℃).This semicoke can satisfy the gas making of producer gas generator fully and produce needs, and the gas making production effect is good.If sintering temperature surpasses 720 ℃, then be that empty energization source consumes and sintering time, and little to the influential effect of gas making production.
In charging process of the present invention, the mode that the semicoke sealing adds producer gas generator is: in the transferring case of two storehouses of upper and lower serial connection, the bottom of at first closed upper and lower pair of capacity device, open the end mouth of agglomerating plant, keeping making semicoke enter into the capacity device under the isolated state with following capacity device and producer gas generator; The end mouth of closed agglomerating plant is then opened the bottom of capacity device, under the state that all keeps completely cutting off with agglomerating plant and producer gas generator, semicoke is entered into down the capacity device from last capacity device; The last closed bottom of going up the capacity device is opened down the bottom of capacity device, is keeping under the isolated state with last capacity device and agglomerating plant, makes semicoke from the capacity device enters into and following storehouse Di Kou connects down producer gas generator.Like this, agglomerating plant Di Kou, on carry out semicoke between Cang Dikou and following storehouse Di Kou (being opening for feed on the producer gas generator) three when transmitting, whenever there is a mouth to open, two mouths are just closed in addition, thereby guaranteed in the semicoke transmittance process, the complete state of isolation of air-flow between agglomerating plant and the producer gas generator, thus air-flow intercommunication between agglomerating plant and producer gas generator avoided, guaranteed to implement the possibility of this charging process and the security of production thus.
One of key of charging process of the present invention, exactly fragmentary tobacco powder coal is sealed heat-agglomerating in advance in agglomerating plant, make it to become the block semicoke that producer uses as raw material that can give gas, this is the primary prerequisite that realizes that producer gas generator directly utilizes the tobacco powder coal.
Two of the key of charging process of the present invention is the high temperature semicoke directly to be sealed to put into carry out gas making production in the producer gas generator.On the one hand, if not directly putting in the producer gas generator after sintering semicoke into, but different place sintering moves on to again, that just and the existing coke that uses be more or less the same as the charging process of raw material.On the other hand, if there be not the direct sealing transmission of airtight transferring case direct-connected between agglomerating plant and the producer gas generator to the high temperature semicoke, will be because of the air-flow intercommunication that exists between agglomerating plant and the producer gas generator, and form great production safety hidden danger, charging process of the present invention can not be realized.In addition, in charging process of the present invention, this semicoke is formed high temperature in sintering process, after directly feeding intake, has also greatly weakened in the existing feed way and crossed low gas making production adverse effect to producer gas generator because of the material temperature that drops into.The input of this high temperature raw material, the steam decomposition rate for keeping producer gas generator furnace temperature, raising producer gas generator has obvious facilitation, and this is the positively effect that the present invention is not initially reckoned with.
One of advantage of charging process of the present invention is, realized the direct utilization of little nitrogen fertilizer production enterprise to the tobacco powder coal, and having solved for a long time, people want to solve and unsolved problem always.Because the tobacco powder coal can reduce 160-300 unit than hard coal price per ton, then falls manyly than the price of coke.For a little nitrogen fertilizer production enterprise that produces 80000 tons of synthetic ammonia per year, the change of only this item gas making raw material annually just can reduce raw materials cost more than at least 370 ten thousand yuan.
Two of the advantage of charging process of the present invention is, the semicoke that high temperature sintering becomes directly sealing joins in the producer gas generator, more much higher than temperature raw materials used in original charging process, thereby to feed in raw material just much smaller to the influence of furnace temperature than original charging process to the influence of producer gas generator furnace temperature at every turn, thereby promoted the raising of producer gas generator steam rate of decomposition effectively.The results showed, after using charging process of the present invention, the steam rate of decomposition of producer gas generator can be brought up to 60-70% by original about 50%, calculate by improving 10%, the separate unit producer gas generator is because the raising of water-gas output, just can corresponding raising synthetic ammonia output 2700 tons/year, can increase income more than 500 ten thousand yuan/year, economic benefit is very remarkable.
Three of the advantage of charging process of the present invention is in the sintering process to the tobacco powder coal, be attended by the generation of inflammable gass such as CO simultaneously, and the quantum of output of inflammable gas to be enough to satisfy the required firing rate of tobacco powder coal heat-agglomerating.Therefore, though charging process of the present invention has added the sintering process of tobacco powder coal, only be a spot of extra fuel consumption to be arranged in each blow-on production starting stage, in continuing production process, then recyclable automatic gas-producing fluid fuel.Sintering process in this sample charging process just need not other energy consumptions basically, has both reached purpose of energy saving, does not increase too much production cost again.And the recycling of self-produced inflammable gas, also reduced disposal of pollutants, compliance with environmental protection requirements.
Four of the advantage of charging process of the present invention is, except that the tobacco powder coal of the first step to the adition process that adds material container, other steps all are to carry out under closed state: promptly the tobacco powder coal is closed injection agglomerating plant; Sintering process is to carry out under closed state; Semicoke is closed injection producer gas generator.So just both avoided agglomerating plant by adding the straight-through of material container and extraneous air, avoided the straight-through of producer gas generator and agglomerating plant and extraneous air again, thereby just can prevent leaking of inflammable gas in agglomerating plant and the producer gas generator effectively, guaranteed safety in production continuously, carry out smoothly.
The dedicated feeder of using charging process of the present invention is achieved in that this device accepted from top to bottom, successively and formed by add feed bin, pit kiln, carbon assembling bin and blowing storehouse with upper and lower lid, is provided with the ring flange that is connected with the producer gas generator opening for feed at blowing Cang Xiakouchu.This be installed in producer gas generator top, accept the dedicated feeder of composition up and down, can satisfy the special charging process of tobacco powder coal of the present invention, and Flow of Goods and Materials wherein is to be undertaken by terrestrial gravitation substantially, thereby can save many relevant material promotions or running gear and control corresponding mechanism, save corresponding energy consumption, and simplified the corresponding technological process in the charging process of the present invention.
Description of drawings
Fig. 1 is the structural representation of dedicated feeder of the present invention.
Fig. 2 is the side-view of Fig. 1.
Embodiment
Because the tobacco powder coal transformation feeding method among the present invention is realized by dedicated feeder, therefore earlier dedicated feeder of the present invention is elaborated here.
As shown in Figure 1 and Figure 2, dedicated feeder of the present invention connects to form up and down successively by adding feed bin 4, pit kiln 8, carbon assembling bin 14 and blowing storehouse 16 4 parts, the end opening in the blowing storehouse 16 of foot is to be connected by flange with the last opening for feed of producer gas generator 19, thereby this feeding device overall fixed on producer gas generator 19, has been constituted a kind of special use tobacco powder coal raw material combination formula producer gas generator.
Among Fig. 1, add feed bin 4 middle part evaginations, tapered up and down closing in.Last lid 1 buckle closure that adds feed bin is adding the suitable for reading of feed bin 4, last lid 1 connects rocking arm 2; end of rocking arm 2 joins with the piston rod with hydraulic ram 3 (ZL97224512.X patent oil cylinder) of spinfunction, and the cylinder body of hydraulic ram 3 is fixed on the side outer wall that adds feed bin 4.Lid 5 down at the inner buckle closure of the end opening that adds feed bin 4, following lid 5 joins by fixed control oil cylinder on pivoted arm and the bulkhead externally.This structure that adds feed bin is analogous to the structure of corresponding feed bin device in the applicant's the ZL98250041.6 patent substantially.
The agglomerating plant of tobacco powder coal is a kind of pit kiln that converts with reference to the existing structure form in the dedicated feeder of the present invention.The structure of this pit kiln 8 (as shown in Figure 2) is to be provided with combustion chamber 10 in coking chamber 9 both sides, and the top of coking chamber 9 is provided with opening, connects with the end opening that adds feed bin 4.The bottom surface opening of coking chamber 9 is connected with holder coal seam floor 12.The bottom surface, both ends of holder coal seam floor 12 has deep-slotted chip breaker, and the top of the piston rod of two affixed push action cylinders 13 is supported on respectively in the bottom surface deep-slotted chip breaker of holder coal seam floor 12 ends on the furnace wall.This special construction at coking chamber top and bottom surface opening, be by the vertical logistics feed way that satisfies among the present invention custom-designed.
As shown in Figure 2, when the piston rod of push action cylinder 13 bounces back downwards, one side free edge of holder coal seam floor 12 promptly is rotated down, open mouth at the bottom of the coking chamber (because the other side of holder coal seam floor 12 joins by end portion supports axle and coking chamber sidewall), the semicoke 11 in the coking chamber 9 promptly falls into the carbon assembling bin 14 of bottom.When the piston rod of push action cylinder 13 bounces back to lower-most point, the opening angle maximum of holder coal seam floor 12.Behind the emptying semicoke, 13 actions of control push action cylinder make piston rod up, promote holder coal seam floor 12 along the bottom surface deep-slotted chip breaker and return back to the end mouth of sealing coking chamber 9 fully.
For guarantee that the tobacco powder coal can be heated evenly in coking chamber 9, coking chamber 9 is designed to upright flat-square shaped shape.Among Fig. 1, for make semicoke can be fast, come out of the stove the inclined-plane of two axial narrow lateral layout of coking chamber 9 smoothly downwards for extending out.The inclined-plane that extends out makes coking chamber two narrow sides form certain tapering, helps the downward discharging of semicoke 11 like this.Push action cylinder 6 is equipped with on mouth both sides, top on coking chamber 9 tops respectively, and the piston rod of oil cylinder stretches into coking chamber, and its end connects push pedal 7, so that the semicoke in the coking chamber is assisted pushing, improves the speed of coming out of the stove of semicoke.
Because the volume of the coking chamber of flat-square shaped shape is limited, once institute's agglomerating semicoke still can not satisfy a materials amount of producer gas generator, thereby the coking chamber 9 of said structure just is provided with at least four in pit kiln 8, combustion chamber 10 is staggered with coking chamber 9, is beneficial to the heat-agglomerating to the tobacco powder coal.And one group of two adjacent coking chamber, top be totally one top mouthful, and each mouthful top, top all connects one and adds feed bin 4 (shown in Figure 2).Add one group of two coking chamber that feed bin docks with one like this, advance coal jointly, discharge of the coke, the blanking uniformity coefficient that adds tobacco powder coal in the feed bin is improved, can satisfy the once reinforced consumption of producer gas generator again.And the setting of the above sintering mechanism of at least two groups in the pit kiln 8, also can realize replacing respectively, sinter material respectively into, alternately inject the reinforced process of producer gas generator into coal.This just can be avoided because of once sintered overlong time, the phenomenon of material such as producer gas generator blowing out is occurred, and has satisfied the reinforced requirement that the producer gas generator serialization is produced.
Among Fig. 2, be provided with 8 coking chambers in the pit kiln 8 of dedicated feeder of the present invention altogether, 9 combustion chambers are spaced apart.Promptly equal combuster 10 can heat it in the both sides of each coking chamber 9.Be provided with 4 feed bins 4 that add arranged side by side altogether on the top of pit kiln 8, each end opening that adds feed bin is connected by flange with the open top of two one group coking chamber, has constituted 4 groups of sintering mechanisms, replaces into coal, sintering respectively and feeds intake, and makes production process more steady.
Among Fig. 1, be provided with carbon assembling bin 14 and blowing storehouse 16 in the bottom of the pit kiln 8 of said structure form, carbon assembling bin 14 and blowing storehouse 16 are funnel-form, and two storehouse end openings are equipped with the following lid 15,17 that opens and closes by oil cylinder control respectively.The upper brim of carbon assembling bin 14 is along the following bottom perimeter of airtight sealing-in at pit kiln 8; The sealing-in cover plate 18 suitable for reading in blowing storehouse 16, the end mouth of central opening on the cover plate 18 and carbon assembling bin 14 connects.The following lid 17 of the following lid 15 of buckle closure carbon assembling bin 14 end openings and buckle closure blowing storehouse 16 end openings all is to join by pivoted arm and piston rod at the hydraulic ram of bulkhead external stability, with the controlled action of the keying that realizes down lid.Its concrete structure and connection, control mode can adopt following lid structure and connection and the control mode that roughly the same adds feed bin 4.
Charging process of the present invention is: at first open and add feed bin loam cake 1, inject the tobacco powder coal by coal bunker or other e Foerderanlages in adding feed bin 4.Then after confirming to close lid 1, to open and add feed bin lower cover 5, the tobacco powder coal falls into two coking chambers 9 of bottom pit kiln 8 correspondence connections by deadweight.After closing down lid 5, combustion chamber 10 ventilation burnings reach about 650-720 ℃ the temperature rising in the coking chamber 9, can make the tobacco powder coal be sintered into block semicoke.
When producer gas generator need feed in raw material, open the holder coal seam floor 12 of corresponding two coking chambers, 9 lower bottom mouths earlier, make the push action cylinder 6 and the push pedal 7 on coking chamber 9 tops carry out promotion work down in turn, semicoke 11 is all entered the carbon assembling bin 14 of pit kiln 8 bottoms from coking chamber.Closed then holder coal seam floor 12 is sealed mouth at the bottom of the coking chamber; Open the following lid 15 of carbon assembling bin again, semicoke promptly all falls into blowing storehouse 16 from carbon assembling bin 14.Finish, after lid 15 closures under the affirmation carbon assembling bin, the following lid 17 in blowing storehouse 16 is opened, and semicoke promptly enters into the producer gas generator that the bottom joins smoothly.Close lid 17 under the blowing storehouse at last, promptly finish once reinforced process producer gas generator.
In above-mentioned reinforced process, between relevant the storehouse lid and storehouse lid, and the oil cylinder control of the switching motion between storehouse lid and the holder coal seam floor, all be electric and hydraulic interlocking control by magnetic valve, can not open simultaneously to guarantee region of interest, stop mutual air-flow and communicate, thereby guaranteed carrying out smoothly of safety in production.
Claims (7)
1, a kind of tobacco powder coal transformation feeding method of producer gas generator is characterized in that this method is:
A, the tobacco powder coal is added one add in the material container;
B, under the condition of isolated extraneous air, add material container by this and tobacco powder coal sealing ground is injected one can seal the agglomerating plant of heating it;
C, the tobacco powder coal is sealed heating, make it to sinter into block semicoke with agglomerating plant;
D, in the transferring case of two storehouses of upper and lower serial connection, the bottom of at first closed upper and lower pair of capacity device is opened the end mouth of agglomerating plant, is keeping making semicoke enter into the capacity device under the isolated state with following capacity device and producer gas generator; The end mouth of closed agglomerating plant is then opened the bottom of capacity device, under the state that all keeps completely cutting off with agglomerating plant and producer gas generator, semicoke is entered into down the capacity device from last capacity device; The last closed bottom of going up the capacity device is opened down the bottom of capacity device, is keeping under the isolated state with last capacity device and agglomerating plant, makes semicoke from the capacity device enters into and following storehouse Di Kou connects down producer gas generator.
2, the tobacco powder coal transformation feeding method of 1 described producer gas generator as requested is characterized in that tobacco powder coal sintering Heating temperature is more than 450 ℃.
3, the tobacco powder coal transformation feeding method of 2 described producer gas generators as requested is characterized in that tobacco powder coal sintering Heating temperature is at 650 °-720 ℃.
4, a kind of dedicated feeder that is applied in the described tobacco powder coal transformation feeding method of claim 1, it is characterized in that this device accepted from top to bottom, successively and formed by add feed bin (4), pit kiln (8), carbon assembling bin (14) and blowing storehouse (16) with upper and lower lid, the end opening place is provided with the ring flange that is connected with the producer gas generator opening for feed in blowing storehouse (16); Two storehouse end openings of carbon assembling bin (14) and blowing storehouse (16) are equipped with the following lid that opens and closes by oil cylinder control respectively; The upper brim of carbon assembling bin (14) is along the following bottom perimeter of airtight sealing-in at pit kiln (8), the sealing-in cover plate suitable for reading (18) of blowing storehouse (16), and the end mouth of central opening on the cover plate (18) and carbon assembling bin (14) connects.
5,4 described dedicated feeders as requested is characterized in that described pit kiln (8) is to be provided with combustion chamber (10) in coking chamber (9) both sides, and the top of coking chamber (9) is provided with opening, connects with the end opening that adds feed bin; The bottom surface opening of coking chamber (9), be connected with holder coal seam floor (12), the bottom surface, both ends of holder coal seam floor (12) has deep-slotted chip breaker, and the top of the piston rod of affixed two push action cylinders (13) is supported on respectively in the bottom surface deep-slotted chip breaker of holder coal seam floor (12) end on the furnace wall.
6,5 described dedicated feeders as requested is characterized in that described coking chamber (9) is upright flat-square shaped shape, the inclined-plane of two axial narrow sides for extending out downwards; On mouth both sides, the top on coking chamber top push action cylinder (6) is housed respectively, the piston rod of oil cylinder stretches into coking chamber, and its end connects push pedal (7).
7,5 or 6 described dedicated feeders as requested is characterized in that being provided with at least four coking chambers (9) in pit kiln (8), combustion chamber (10) are staggered with coking chamber (9); One group of two adjacent coking chamber, top be totally one top mouthful, and each mouthful top, top all connects one and adds feed bin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126231A CN1313578C (en) | 2005-06-24 | 2005-06-24 | Bituminous fine coal transformation feeding method for gas generator and dedicated feeder therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126231A CN1313578C (en) | 2005-06-24 | 2005-06-24 | Bituminous fine coal transformation feeding method for gas generator and dedicated feeder therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1702151A CN1702151A (en) | 2005-11-30 |
| CN1313578C true CN1313578C (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100126231A Expired - Fee Related CN1313578C (en) | 2005-06-24 | 2005-06-24 | Bituminous fine coal transformation feeding method for gas generator and dedicated feeder therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1313578C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955989A (en) * | 1982-06-23 | 1990-09-11 | Shell Oil Company | Process for conveying a particulate solid fuel |
-
2005
- 2005-06-24 CN CNB2005100126231A patent/CN1313578C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4955989A (en) * | 1982-06-23 | 1990-09-11 | Shell Oil Company | Process for conveying a particulate solid fuel |
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| CN1702151A (en) | 2005-11-30 |
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