CN87212113U - Coking still - Google Patents
Coking still Download PDFInfo
- Publication number
- CN87212113U CN87212113U CN198787212113U CN87212113U CN87212113U CN 87212113 U CN87212113 U CN 87212113U CN 198787212113 U CN198787212113 U CN 198787212113U CN 87212113 U CN87212113 U CN 87212113U CN 87212113 U CN87212113 U CN 87212113U
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- China
- Prior art keywords
- coal
- coke
- wall
- coking
- pit kiln
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B15/00—Other coke ovens
- C10B15/02—Other coke ovens with floor heating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The utility model relates to a coke furnace which is suitable for township enterprises to use. With the advantages of less investment, high coking speed, and high quality of coked coke, the coke furnace can eliminate the pollution to environment. The coke furnace is characterized in that the inner side of the top of the coke furnace is provided with tempering holes, and the side walls of the coke furnace are provided with an inside flame path. The bottom of the coke furnace is provided with a flame path and is connected with a chimney through a horizontal flue path. In the process of coking, a large amount of generated coal gas makes the four walls of coal seam heated through the upper holes of a tempering path, the inside flame path of the side wall and the tempering path at the bottom of the coke furnace, quickening the coking speed. Distillate generated in the process of coking is burned out completely and then is exhausted into the air through the horizontal flue path and the chimney to be changed into innocuous gas.
Description
The utility model is a kind of pit kiln.
At present, produce the used coke oven of coke and have two kinds: a kind of is cokery, and a kind of is soil coke oven.Cokery investment is too high, as No. three coke oven gross investments of red flag of producing 20000 tons of scales per year are about 1,600,000 yuan, kind surplus the brick type 40.Produce 70 Formed Coke Furnace of 40,000 tons of scales per year, gross investment is 4,000,000 yuan.Soil coke oven less investment, instant effect, but utilize soil coke oven production to bring the serious environmental pollution, and energy consumption is bigger simultaneously, burnt 1.8 to 2 tons in the consumption coal that needs of 1 ton of soil of every production.The about 0.5 ton of coal of the many consumptions of this mechanical coke production, coke making by indigenous methods is in the incendiary retort process, a large amount of carbon monoxide sulfurous gas is arranged, oxynitride, Volatile Phenols comprises that the multiple obnoxious flavoures such as benzene series thing of strong carcinogens 3.4 1 benzo castors are discharged, and the burnt coke quality of being produced of soil is also inferior, generally all do not reach metallurgical standard, cause very big energy dissipation to country.
The purpose of this utility model is to provide a kind of less investment, construction time weak point, basically eliminate environmental pollution, energy efficient, the pit kiln that is suitable for township and village enterprises of raising coke quality.
Task of the present utility model is realized by following technical proposals.
3 form at the bottom of 1 usefulness four sides, the carbonization chamber sidewall wall 10 of pit kiln, the chimney arch shape top 11 that sidewall wall 10 supports and the carrying charging coal carbonizing chamber;
Arch top 11 is provided with the air distribution coal inlet hole 6 of holding concurrently;
Also be provided with on the arch top 11 and left and right sides sidewall hole 4 on the tempering road that connects of quirk 4A, furnace bottom tempering road 5 within the walls;
The bottom of left and right sides sidewall wall 10 is provided with some spots fire hole 2;
It is that arcual advances the coal door 7 that discharges of the coke that front side wall wall 10 is opened a top, also opens two vision slits 8 on 7 advancing the coal door that discharges of the coke.
Open a floss hole 9 that connects with furnace bottom tempering road 5 below the rear wall wall 10.
This pit kiln can be built into one group side by side, and all pit kiln can pass through horizontal flue 12 shared chimneys 13.
The whole body of heater of this pit kiln, flue and chimney are built by laying bricks or stones with refractory fireclay block and blue or green ceramic tile, and whole body of heater need not any steel and ironware.In order to prolong the work-ing life of body of heater, also can be outside with the reinforcing of trail rail at body of heater.
The technological process of this pit kiln coking is:
Will the qualified raw coal of chemical examination, put in the furnace chambers at the bottom of the carbonization chamber on 3 base plates by advancing the coal door 7 that discharges of the coke after crushed, reach the height of regulation.Simultaneously carry out quirk in the coal seam, it is real to push away straight tamper, coaling finish after, coke oven is advanced the coal door 7 usefulness refractory brick that discharge of the coke seals.
From pit kiln both sides fire hole 2 firing ups, stove fire is warmed up to 350 °~450 ℃ by the quirk in the coal seam with raw coal with steam coal, and coking coal begins to decompose, and generates a large amount of coal gas and takes fire, and the heating in coal seam from top to bottom.The coal gas that is burning simultaneously by hole 4, sidewall on the tempering road within the walls quirk 4A cause furnace bottom tempering road 5, with 3 base plates heating at the bottom of the carbonization chamber, make the coal seam heating from bottom to top.As seen from the above, this pit kiln is the both sides pit kiln of heating up and down.Because heating surface area is big, temperature is even, thereby has accelerated coking speed greatly, has guaranteed coke quality.In addition, the coke oven volatilization gas that destructive distillation produces in process of coking after the burning of coal charge upper space, does not have the coal gas that has burnt, enter furnace bottom tempering road 5 through both sides sidewall wall tempering road 4A and burn away, make the residue overhead product perfect combustion of partial combustion.Like this, enter atmospheric combustionmaterial through chimney and just become innocuous gas, eliminated the pollution of the overhead product that produces in the process of coking atmosphere or surrounding environment.
After all process of coking finish, open into coal discharge of the coke door 7 and all ducts, quenching is discharged of the coke.
Because this pit kiln adopts said structure and technology, and it is had the following advantages:
1, this pit kiln fully burns the coal charge overhead product as base plate at the bottom of the thermal source heating carbonization chamber, has accelerated coking speed, and energy efficient has become products of combustion into innocuous gas simultaneously, enters atmosphere via chimney, can eliminate the pollution to environment.
2, coke making process is simple, and Coking Workers can be grasped this technology through after the short-term cultivation, produces qualified metallurgical coke.
3, coking power can reach more than 66.7%, compares with native Jiao, and Jiao per ton can save 0.5 ton in raw coal, calculates by producing 20000 tons of coke per year, can save raw coal 0.5 * 20000=10000 ton every year.
4, this pit kiln does not have the electricity consumption part again except that quenching makes the electricity consumption with pulverizer with submersible pump and pulverizing coal charge, so be not subjected to left alone without help electricity restriction, be specially adapted to township and village enterprises and do factory.
5, each ignition section of this pit kiln is a unit, and body of heater is changeable, and building stove unit can be according to the investment number, and how much output makes up it.
The explanation of accompanying drawing drawing
Fig. 1 is the rough package drawing that the combination of this pit kiln is constructed.
Fig. 2 is that this pit kiln is faced diagrammatic cross-section.
Fig. 3 is this pit kiln top cross-sectional view.
Embodiment below in conjunction with this pit kiln of description of drawings.
Long 16.76 meters of this pit kiln body of heater, wide 4.6 meters, high 2.35 meters (outside dimension).But the length of body of heater is to requiring to increase or reduce according to investment what and output.
The furnace type structure of this pit kiln such as Fig. 2, shown in Figure 3.Two side lower parts at body of heater are provided with 20 fire holes 2 altogether.The 11 inclined to one side both sides, arch top of body of heater are provided with 10 coal inlet holes 6 of holding concurrently that ventilate altogether; Have at the bottom of carbonization chamber 1, the carbonization chamber 3 in the stove; Be provided with furnace bottom tempering road 5 at the bottom of the carbonization chamber below 3 base plates, sidewall wall (10) 1.7 meters eminences in the left and right sides respectively are provided with on the tempering road (4) 5 in hole in the stove, and what body of heater front side wall wall 10 was provided with 1.7 * 1.5M advances discharge of the coke 7 one at door of coal.
Chemically examine qualified raw coal, put into after crushed in the burner hearth at the bottom of the carbonization chamber on 3 base plates, reach the thickness of regulation, shakeout compacting, coaling finish after, will advance the coal door 7 usefulness refractory brick that discharge of the coke and seal.
With steam coal from pit kiln both sides fire hole 2 firing ups, stove fire is warmed up to 350 ℃-450 ℃ by coal seam internal-quirk (when coalingging quirk being carried out) with raw coal, coking coal begins to decompose, generating a large amount of coal gas takes fire, at this moment air can have in the feeding stove of control, coal gas is fully burned, therefore, the downward extension that process of coking is very fast from top, coal seam, if according to 1.6 meters calculating of thickness of coal seam, the coking velocity estimation is 11.11mm per hour, and then all the coking times are about 140 hours or 5~6 days.
The heating in this pit kiln coal seam not only can be downward by the upper strata, also can be from bottom to top.This be because the coal gas that burning by hole 4, left and right sides sidewall on the tempering road within the walls quirk 4A cause furnace bottom tempering road 5 with 3 base plates heating at the bottom of the carbonization chamber, thereby accelerated coking speed greatly.
After all process of coking finish, open into coal discharge of the coke door 7 and all ducts, quenching, discharge of the coke.
Claims (2)
1, a kind of pit kiln is characterized in that:
(1) 3 forms at the bottom of the carrying charging coal carbonizing chambers 11, chimney arch shape top supported by four sides sidewall wall 10, sidewall wall, carbonization chamber 1;
(2) arch top 11 is provided with the air distribution coal inlet hole 6 of holding concurrently;
(3) also be provided with on the arch top 11 and left and right sides sidewall hole 4 on the tempering road that connects of quirk 4A, furnace bottom tempering road 5 within the walls;
(4) bottom of left and right sides sidewall wall 10 is provided with some spots fire hole 2;
(5) to open a top be that arcual advances the coal door 7 that discharges of the coke to front side wall wall 10, also opened two vision slits 8 on 7 advancing the coal door that discharges of the coke;
(6) rear wall wall 10 below a floss hole 9 that connects with furnace bottom tempering road 5 is arranged;
(7) floss hole 9 links to each other with chimney 13 by horizontal flue 12.
2, according to the said pit kiln of claim 1, it is characterized in that: pit kiln is constructed in groups side by side, and all pit kiln are by horizontal flue 12 shared chimneys 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN198787212113U CN87212113U (en) | 1987-08-22 | 1987-08-22 | Coking still |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN198787212113U CN87212113U (en) | 1987-08-22 | 1987-08-22 | Coking still |
Publications (1)
Publication Number | Publication Date |
---|---|
CN87212113U true CN87212113U (en) | 1988-06-29 |
Family
ID=4826808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN198787212113U Withdrawn CN87212113U (en) | 1987-08-22 | 1987-08-22 | Coking still |
Country Status (1)
Country | Link |
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CN (1) | CN87212113U (en) |
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-
1987
- 1987-08-22 CN CN198787212113U patent/CN87212113U/en not_active Withdrawn
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