The collocation method of blending material of pot-type calciner and device
Technical field
The present invention relates to a kind of collocation method and device of blending material of pot-type calciner.
Background technology
In carbon product is produced, when adopting can-type calcine furnace calcining retard petroleum coke, because the volatile content in the retard petroleum coke is generally all more than 12%.Therefore, need back to join a certain amount of calcined coke and raw petroleum coke and evenly mix, the fugitive constituent that enters the can-type calcine furnace raw material is down to below 11%, could in calcination process, avoid raw material coking in can-type calcine furnace, the material in the stove is normally discharged.
Present back ingredient, directly adopt from the storage transportation system of forging rear material, the calcined coke granularity of storing in the transportation system is inhomogeneous, what granularity was little is powdery substantially, the diameter 40mm that granularity is big, and granule size does not wait, very inhomogeneous, mix, very difficult basis enters calcined coke granularmetric composition situation before the screen cloth and pot type calcining to the demand of back ingredient, changes the Granularity Structure of the calcined coke that consists of back ingredient.Because when bulk calcined coke in back ingredient is mixed with raw petroleum coke, at the subrange at the calcined coke place of bulk, its uniformity is relatively poor.Thereby with the bulk of small grain size equivalent to forge the back burnt, the volatile component that produces in the time of can not stoping raw petroleum coke to be heated, thus make the raw material coking in the can-type calcine furnace become bulk.Material in the hopper is got clogged, and discharge that can not be smooth causes the dosage of returning that needs to increase simultaneously, causes production capacity to reduce; The loss that causes secondary clacining strengthens.
Summary of the invention
The objective of the invention is to, a kind of collocation method and device of blending material of pot-type calciner are provided, back Jiao be will forge by screen cloth and fines and two kinds of specifications of coarse fodder sieved into, in use, can be according to entering the burnt size composition situation in back of forging before the screen cloth and pot type calcining to returning the demand of batching, use two kinds of different backs of forging to prepare burden or raw materials for production burnt composition the back selectively, prevent that the volatile component coking that produces when raw petroleum coke is heated from becoming bulk, cause the material in the hopper to get clogged, the phenomenon of discharge that can not be smooth; Simultaneously can improve production capacity, reduce the loss of secondary clacining.
Technical scheme of the present invention: a kind of collocation method of blending material of pot-type calciner, be will through the calcined coke of can-type calcine furnace calcining by screen cloth be sieved into can be by screen cloth fines with can not be by the coarse fodder of screen cloth; According to entering calcined coke granularmetric composition situation before the screen cloth and the demand of back ingredient, all select fines as back ingredient; Or select part fines and part coarse fodder as back ingredient; Maybe will be through the calcined coke of can-type calcine furnace calcining all as back ingredient; Or with fines and coarse fodder all as raw materials for production.
Described screen cloth is obliquely installed in forging the burnt storage transport passage in back, and screen cloth is for adjusting the single-deck vibrating screen net of vibrational frequency, and the area of screen cloth is set to 0.3-0.5m2/t and forges back Jiao, and the mesh of screen cloth is less than 6mm.
In the collocation method of aforesaid blending material of pot-type calciner, described whole selection fineves are as back ingredient, when the amount that is applicable to fines can satisfy the back ingredient demand.
In the collocation method of aforesaid blending material of pot-type calciner, described selection part fines and part coarse fodder be as back ingredient, when the amount that is applicable to fines can not satisfy the back ingredient demand, replenishes with coarse fodder.
In the collocation method of aforesaid blending material of pot-type calciner, describedly will through the calcined coke of can-type calcine furnace calcining all as back ingredient, be applicable to that the calcined coke that can-type calcine furnace is discharged is defective material.
In the collocation method of aforesaid blending material of pot-type calciner, described with fines and coarse fodder all as raw materials for production, be applicable to and will through the calcined coke of can-type calcine furnace calcining all as back ingredient, be applicable to that can-type calcine furnace does not need the situation of back ingredient.
A kind of inking device of blending material of pot-type calciner comprises the can-type calcine furnace calcination system; Outlet at the can-type calcine furnace calcination system is provided with screen cloth, is provided with coarse fodder delivery port and fines delivery port on screen cloth, the coarse fodder delivery port through the threeway baffle plate respectively with the import of returning batch bin with forge after burnt storage system be connected; Respectively with the import of returning batch bin with forge the burnt storage system in back and be connected, the outlet of time batch bin is connected with the raw petroleum coke delivery system that the can-type calcine furnace calcination system enters the mouth the fines delivery port through the threeway baffle plate.
Compared with prior art, the present invention is owing to increased screen cloth, to forge back Jiao through the can-type calcine furnace incinerating and be divided into fines and two kinds of different sizes of coarse fodder, return timing, and can between fines and two kinds of different sizes of coarse fodder, carry out freely allocating by mesh screen.When fines is sufficient, preferentially takes fines and make back ingredient; When fines can not the amount of satisfying the demands, can take coarse fodder with fines as back ingredient; When can-type calcine furnace discharge be defective material the time, also can be with the calcined coke of discharging all as back ingredient.When not needing back batching, Jiao can be transported to as raw materials for production and forge the burnt storage system in back after all were forged through the can-type calcine furnace incinerating.Use flexibly.The quantum of output of fines can be regulated by the vibration frequency of adjusting screen cloth.Vibrational frequency is directly proportional with screening rate, and the more little fines of vibrational frequency is also more little in the quantum of output of unit time, otherwise the big more fines of vibrational frequency is also big more in the quantum of output of unit time.Can manual control during operation, measure as required the back ingredient of from system, taking out available " minimum particle size ".The raw material that so just can guarantee to enter can-type calcine furnace returns the homogeneity of batching and the compound of raw petroleum coke, in calcination process, return batching can effectively block raw petroleum coke and be heated the time volatile matter coking act as bulk, the phenomenon that can not discharge with the material of avoiding in the hopper.Also can suitably reduce back the amount of batching, the volatile content that makes back batching is below 11%.Therefore the production capacity in the time of not only can improving can-type calcine furnace calcining raw petroleum coke can also be avoided the secondary scaling loss of the back ingredient that reduces, improves the casting yield of calcination process.The volume particle size that can increase next procedure needs is forged the burnt amount in back.Simultaneously can improve production capacity, reduce the loss of secondary clacining.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the prior art constructions synoptic diagram.
Being labeled as in the accompanying drawing: 1-can-type calcine furnace calcination system, the 2-screen cloth, 3-threeway baffle plate, 4-returns batch bin, and 5-forges the burnt storage system in back, 6-raw petroleum coke delivery system.
Embodiment
Below in conjunction with drawings and Examples the collocation method of a kind of blending material of pot-type calciner of the present invention and used device are described in further detail, but not as the foundation of the present invention being done any restriction.
Embodiments of the invention: the control method of blending material of pot-type calciner granularity of the present invention as shown in Figure 1, this method be with forge through the can-type calcine furnace incinerating back burnt by mesh screen be divided into can be by screen cloth fines with can not be by the coarse fodder of screen cloth; The area of screen cloth is set to 0.3-0.5m2/t and forges back Jiao, and the mesh of screen cloth is less than 6mm, but mesh circular hole or square hole, and when mesh was circular hole, its diameter was less than 6mm, but when the mesh square hole, the diagonal angle length of its square hole is less than 6mm.According to entering calcined coke granularmetric composition situation before the screen cloth and the demand of back ingredient, all select fines as back ingredient; Or select part fines and part coarse fodder as back ingredient; Maybe will be through the calcined coke of can-type calcine furnace calcining all as back ingredient; Or with fines and coarse fodder all as raw materials for production.Described screen cloth is inclined in the storage transport channel of calcined coke, and screen cloth is the single-deck vibrating screen net of capable of regulating vibration frequency.
The calcined coke of can-type calcine furnace calcining all is stored in back ingredient and is stored in the calcined coke storage system 5 during without screening, the calcined coke of can-type calcine furnace calcining through screening after, fines is stored in the back ingredient storehouse 4; Be provided with raw petroleum coke induction system 6 at the can-type calcine furnace entrance, back ingredient with after raw petroleum coke in the raw petroleum coke induction system 6 mixes as raw materials for production.
Above-mentioned whole selection fines is as back ingredient, when the amount that is applicable to fines can satisfy the back ingredient demand.Described selection part fines and part coarse fodder are applicable to that as returning batching the amount of fines can not satisfy back when preparing burden demand, replenish with coarse fodder.Describedly will through the calcined coke of can-type calcine furnace calcining all as back ingredient, be applicable to that the calcined coke that can-type calcine furnace is discharged is defective material.Described with fines and coarse fodder all as raw materials for production, be applicable to and will through the calcined coke of can-type calcine furnace calcining all as back ingredient, be applicable to that can-type calcine furnace does not need the situation of back ingredient.
When implementing the inking device of blending material of pot-type calciner of the present invention, its structure comprises and adopts existing can-type calcine furnace calcination system 1 as shown in Figure 1; The outlet of can-type calcine furnace calcination system 1 is connected with screen cloth 2, on screen cloth 2, produce coarse fodder delivery port and fines delivery port respectively, the coarse fodder delivery port is connected with burnt storage system 5 after existing the forging with the import of existing time batch bin 4 respectively through threeway baffle plate 3; With the fines delivery port through threeway baffle plate 3 respectively with the import of returning batch bin 4 with forge the burnt storage system 5 in back and be connected, raw petroleum coke delivery system 6 that the outlet and the can-type calcine furnace calcination system 1 of time batch bin 4 entered the mouth is connected.
Fig. 2 is the synoptic diagram of prior art.As seen from the figure, it is burnt without any processing that the can-type calcine furnace incinerating is forged the back, directly as return batching with the mixing of raw petroleum coke after as the raw material of can-type calcine furnace, therefore cause lack of homogeneity, material in the hopper is got clogged, discharge that can not be smooth causes the dosage of returning that needs to increase simultaneously, causes production capacity to reduce; Cause the problem of the loss increasing of secondary clacining.