CN202829983U - Forming device for lignite semi-coke powder - Google Patents
Forming device for lignite semi-coke powder Download PDFInfo
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- CN202829983U CN202829983U CN 201220313173 CN201220313173U CN202829983U CN 202829983 U CN202829983 U CN 202829983U CN 201220313173 CN201220313173 CN 201220313173 CN 201220313173 U CN201220313173 U CN 201220313173U CN 202829983 U CN202829983 U CN 202829983U
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- coke powder
- lignite semi
- stirring mixer
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Abstract
The utility model discloses a forming device for lignite semi-coke powder. A screw feeder is arranged under a bin and feeds the lignite semi-coke powder and a dry powder binder to a first-stage double-shaft stirring mixer connected with the screw feeder, a reaction kettle is arranged over the first-stage double-shaft stirring mixer, the lignite semi-coke powder is subjected to the first-stage stirring and mixing after spraying of water spray and feeding of a liquid-containing binder through the reaction kettle and then sent to a second-stage double-shaft stirring mixer connected behind the first-stage double-shaft stirring mixer; the second-stage double-shaft stirring mixer performs second-stage mixing and stirring on the lignite semi-coke powder after the first-stage stirring and mixing; a planetary edge runner is connected with the second-stage double-shaft stirring mixer through a large-inclination-angle belt conveyor and an electric tee and grinds the materials after the second-stage mixing and stirring; a middle surge bin is connected with the planetary edge runner through a first conveyor and caches the grinded materials; and a high-pressure ball press is connected with the middle surge bin through the belt conveyor, and grinded materials are fed into the high-pressure ball press to form formed pellets.
Description
Technical field
The utility model relates to product behind the brown coal drying-semi-coke powder and processes utilisation technology, in particular to a kind of lignite semi-coke powder shaped device.
Background technology
Traditional pulverized coal forming technology generally is applicable to the moulding of pulverized anthracite, mainly be to utilize that the suitable binder configure is mixed with coal dust, conveying, moulding, dry this four main steps, because the simple airborne dust of pulverized anthracite moulding is little, so utilize simple equipment and simple combination just can finish.For the lignite semi-coke powder, its space is large, water-absorbent is strong, granularity is little, easy fragmentation, and airborne dust is larger, because special property traditional technology and the method for semi-coke powder not only can not reach movement requirement with the semi-coke powder moulding, and can not produce continuously, production process also can cause serious dust pollution.Utility model people has found the binding agent that is fit to by semi-coke powder character is carried out detailed research, improves traditional technology and makes its moulding of satisfying semi-coke powder, and reach extensive continuous cleaner production.
The utility model content
The utility model provides a kind of lignite semi-coke powder shaped device, in order to moulding and the continuously cleaner production that realizes the lignite semi-coke powder.
For achieving the above object, the utility model provides a kind of lignite semi-coke powder shaped device, it comprises: feed bin, screw feeder, first step double-shaft stirring mixer, second stage double-shaft stirring mixer, reactor, planetary type wheel mill and high-pressure ball press, wherein
Screw feeder is arranged on be used to the feed bin below that holds the lignite semi-coke powder of setting the granularity particle, the starchy binder of lignite semi-coke powder and injection proportional with it is sent into coupled first step double-shaft stirring mixer, reactor is arranged on first step double-shaft stirring mixer top, sprays into the water smoke that contains the first preset proportion moisture and injects the liquid-containing binder that contains the second preset proportion moisture by reactor and carry out sending into behind the first step mix and blend second stage double-shaft stirring mixer that is connected to after the first step double-shaft stirring mixer;
The lignite semi-coke powder of second stage double-shaft stirring mixer after to first step mix and blend carries out second stage mix and blend;
The planetary type wheel mill links to each other with second stage double-shaft stirring mixer with electric three passes by inclination angle belt conveyor, and the material of planetary type wheel mill after to the second stage mix and blend that is entered by chute rolls;
The intermediate buffering storehouse links to each other with the planetary type wheel mill by the first transfer roller, with the material buffer memory after rolling;
High-pressure ball press links to each other with the intermediate buffering storehouse by rotary conveyor, and the material after rotary conveyor will roll is sent into high-pressure ball press, forms the pelletizing of moulding.
Further, above-mentioned lignite semi-coke powder shaped device also comprises:
Vertical drying oven links to each other with high-pressure ball press by second conveyor, and second conveyor is sent the pelletizing of moulding into vertical kiln dried.
Further, above-mentioned lignite semi-coke powder shaped device also comprises:
Surge bunker is arranged on feed bin and is used for before holding the rear lignite semi-coke powder of setting the granularity particle of screening, and links to each other with feed bin by worm conveyor, and lignite semi-coke powder is wherein sent into feed bin.
Further, first step double-shaft stirring mixer place is provided with cleaning apparatus.
Further, the number of planet-style wheel roller wheel is 2,
Above-described embodiment fully mixes material, rubs with the hands and roll with moisture, caking agent and additive, has increased the bulk density of material, and then realizes moulding and the continuously cleaner production of lignite semi-coke powder by moulding, oven dry
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the lignite semi-coke powder shaped device synoptic diagram of the utility model one embodiment;
Fig. 2 is the lignite semi-coke powder moulding process schema of the utility model one embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not paying the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model conducts in-depth research the principal element that affects the semicoke Moulding Process of Brown Coal: the shaping characteristic of semicoke slag charge, material moisture, raw meal particle size and size composition, consumption of binder, forming pressure, bake out temperature time curve, and surface property, hardness, fragility, elasticity, plasticity-, wear resistance, the ash fusion point of dregs formed coal detected.By the above-mentioned factor of strict control, semicoke brown coal molded coal production facility is carried out the combination arrangement of science, design applicable binder formula and the supporting technological process of production.
Fig. 1 is the lignite semi-coke powder shaped device synoptic diagram of the utility model one embodiment.As shown in the figure, this lignite semi-coke powder shaped device comprises: feed bin 101, screw feeder 102, first step double-shaft stirring mixer 103, second stage double-shaft stirring mixer 104, reactor 105, planetary type wheel mill 106 and high-pressure ball press 107, wherein
Screw feeder 102 is arranged on be used to feed bin 101 belows that hold the lignite semi-coke powder of setting granularity particle (such as granularity below 3mm), the starchy binder of lignite semi-coke powder and injection proportional with it is sent into coupled first step double-shaft stirring mixer 103, reactor 105 is arranged on first step double-shaft stirring mixer 103 tops, sprays into the water smoke that contains the first preset proportion moisture and injects the liquid-containing binder that contains the second preset proportion moisture by reactor 105 and carry out sending into behind the first step mix and blend second stage double-shaft stirring mixer 104 that is connected to after the first step double-shaft stirring mixer 103;
Lignite semi-coke powder behind 104 pairs of first step mix and blends of second stage double-shaft stirring mixer and carry out second stage mix and blend;
Planetary type wheel mill 106 links to each other with second stage double-shaft stirring mixer 105 with electric three passes by inclination angle belt conveyor, and the material behind the second stage mix and blend that 106 pairs of planetary type wheel mills are entered by chute rolls;
High-pressure ball press 107 links to each other with intermediate buffering storehouse 108 by rotary conveyor, and the material after rotary conveyor will roll is sent into high-pressure ball press 107, forms the pelletizing of moulding.
Mechanism between semicoke brown coal slag particle and the binding agent is very complicated, comprise wetting, mass transfer, in conjunction with etc. process. the bonding force between binding agent and the bonded thing, the synthesis result of mechanical bond power and physical chemistry bonding force. for this nonpolar porous material of brown coal slag, hydroscopicity is extremely strong, mechanical bond power plays a decisive role. and brown coal dregs formed coal intensity is that binding agent infiltrates in the coal intergranular crack, dehydration, solidify the result who produces mechanically link. the binding agent dehydration, sclerosis, in the consolidation process, moulded coal shrinks with the moisture evaporation, grain spacing is from reducing, broken loose resistance increases, briquette strength increases. the gelinite of binding agent aquation formation and the xln of various forms are all arranged in coal grain surface and the hole. and these gelinites and crystal are surrounded the coal grain, and be interconnected to form the crystal network, thereby coal grain secure bond being become moulded coal together. gelinite is more in the moulded coal, bar-shaped, column and needle-like crystal are educated all the more, it is more even to distribute, and then brown coal dregs formed coal intensity is higher.This material forming is difficult to, and under the technical experience basis of for many years research and development, the applicant has found technical feasible, economically the acceptable prescription.Semicoke brown coal dregs formed coal average intensity can be greater than 20 kilograms.
Wherein, double-shaft stirring mixer is the mix and blend equipment for bulk material, finish mix and blend (Best Times of mixing of materials is 5 minutes) when adopting adjustable screw-blade that material is leapfroged in U-shaped cylindrical shell, have that stirring capacity is strong, the characteristics of feed continuous uniform, during spray into 4% moisture water smoke make two kinds of material humidifications; The liquid-containing binder that contains 16% moisture that enters again the preparation of second stage double-shaft stirring mixer and reactor carries out mix and blend.
The liquid adhesive production technique is as follows: first with water through being metered into reactor, with pump the auxiliary agent of basin is pumped into again and is metered into reactor in the elevated dosing vessel, start reactor and stir (preferably being configured 80 degrees centigrade of water temperatures).After stirring, solid powder after will being measured by electric block adds reactor, simultaneously passing into steam-heated cal(l)andria to reactor reacts to certain temperature, the binding agent preparation finished after reaction was finished, the binding agent for preparing is stand-by in basin, then injects first step double-shaft stirring mixer by under meter.
High-pressure ball press is driven two pressure rollers through a pair of synchromesh gear and relatively rotates by belt, speed reduction unit by electric motor, because the light specific gravity of semicoke product, difficult forming, for guaranteeing that material forming and compression ratio are controlled in certain ratio range, improve the initial strength of pelletizing, be provided with the pre-pressure feeding machine, adopt mechanical material toggling and feeding device and the anti-blocking liner plate of high molecular abrasion-proof in the pre-pressure feeding machine, thereby realize even feeding, scaffold not, the molding materials of compacting is the smoothly demoulding under the effect of gravity and centrifugal force, and the particle of blind area returns stirring mixer by transfer roller.
Further, above-mentioned lignite semi-coke powder shaped device also comprises:
Vertical drying oven links to each other with high-pressure ball press by second conveyor, and second conveyor is sent the pelletizing of moulding into vertical kiln dried.
Vertical drying oven adopts the low reverse drying principles of flow velocity Wind Volume, adopting hotblast stove heating or stack gas or other thermal source is that drying medium is dried material, mainly formed by distributing belt machine, distributing trolley, drying oven main body, air feed blower fan, airduct, hotblast stove, gas blower, discharging belt conveyer, temperature controller etc., can be with the drying materials of moisture≤20%.The moulded coal that high-pressure ball press is pressed into, sent into the distributing trolley on stoving oven top by rotary conveyor, distributing trolley evenly flows into moulded coal in the stove along chute, air-flow is opposite with moulded coal direction of motion, moulded coal runs into the low hot blast of temperature on top, at first carry out low-temperature heat, hot-air flow is opposite with moulded coal direction of motion, along with constantly operation downwards of moulded coal, the hot blast temperature that runs into is more and more high, the moulded coal contained humidity is progressively volatilization under the baking of hot blast, and moisture is by constantly discharging, after the body of heater high temperature section, hot blast temperature progressively reduces, moulded coal also begins progressively to cool off, and last moulded coal is discharged through discharging belt conveyer by the bottom, and dried moulded coal is transported separately and put in storage.
The bulk density of semicoke brown coal slag only is 0.5, thereby in the design of equipment, need to take into full account a series of variations that bring because volume of material is larger.Again because the bulk density of semicoke brown coal slag is little, surfactivity is high, than characteristics such as coal easy firings, in the type selecting of tower stove, fully takes into account the characteristics of semicoke moulded coal, selects the larger type of furnace of body of heater, adopts lower bake out temperature, assurance safety.Body of heater is larger, both has been conducive to the stable of production line, can also improve product percent of pass.
Fig. 2 is the lignite semi-coke powder moulding process schema of the utility model one embodiment.As shown in the figure, this moulding process may further comprise the steps:
Further, above-mentioned lignite semi-coke powder shaped device also comprises:
Surge bunker is arranged on feed bin and is used for before holding the rear lignite semi-coke powder of setting granularity particle (as sieving the semicoke product of the following particle of rear 3mm) of screening, and links to each other with feed bin by worm conveyor, and lignite semi-coke powder is wherein sent into feed bin.
Further, for overcoming the in process of production great problem of airborne dust of semicoke brown coal slag, be provided with the dedusting closed system around the above-mentioned lignite semi-coke powder shaped device to guarantee cleaner production.。
Rolling is the best equipment of effect in stirring, and it not only fully mixes material with moisture, caking agent and additive, and plays the effect that rolls of rubbing with the hands, and effect surpasses other whipping device.And because increased bulk density, helpful to reducing moisture content and the moulding subsequently that to add.
Material behind the mix and blend enters the planetary type wheel mill by chute, the material that has mixed binding agent and the preliminary mix and blend of process is pushed, rubs with the hands stone roller, kneading, make that binding agent and material mutually contain, permeate, fully combination, thereby reduce both division segregation phenomenons, improve the fusion of binding agent and material, increase the moulding plasticity of material, provide effective guarantee to material forming.
Further, for making the production line non-stop run, the number of planet-style wheel roller wheel is 2, carries out in turn operation, can produce continuously under the condition that meets the demands, and save input of labor.
In addition, the applicant has carried out the comparative analysis of ash fusion point to semicoke brown coal slag and semicoke brown coal dregs formed coal, and the result is as shown in table 1:
Table 1
| The DT(texturing temperature) | The ST(softening temperature) | FT (melt temperature) | |
| Semicoke brown coal slag | 1112℃ | 1123℃ | 1141℃ |
| Semicoke brown coal dregs formed coal | 1109℃ | 1119℃ | 1131℃ |
As can be seen from Table 1, added binding agent and additive in the semicoke brown coal slag prescription all do not have large impact to ash fusion point.
One of ordinary skill in the art will appreciate that: accompanying drawing is the synoptic diagram of an embodiment, and the module in the accompanying drawing or flow process might not be that enforcement the utility model is necessary.
One of ordinary skill in the art will appreciate that: the module in the device among the embodiment can be described according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model embodiment technical scheme.
Claims (5)
1. a lignite semi-coke powder shaped device is characterized in that, comprising: feed bin, screw feeder, first step double-shaft stirring mixer, second stage double-shaft stirring mixer, reactor, planetary type wheel mill and high-pressure ball press, wherein
Described screw feeder is arranged on be used to the described feed bin below that holds the lignite semi-coke powder of setting the granularity particle, the starchy binder of lignite semi-coke powder and injection proportional with it is sent into coupled described first step double-shaft stirring mixer, described reactor is arranged on described first step double-shaft stirring mixer top, sprays into the water smoke that contains the first preset proportion moisture and injects the liquid-containing binder that contains the second preset proportion moisture by described reactor and carry out sending into behind the first step mix and blend the described second stage double-shaft stirring mixer that is connected to after the described first step double-shaft stirring mixer;
The lignite semi-coke powder of described second stage double-shaft stirring mixer after to first step mix and blend carries out second stage mix and blend;
Described planetary type wheel mill links to each other with described second stage double-shaft stirring mixer with electric three passes by inclination angle belt conveyor, and the material of described planetary type wheel mill after to the second stage mix and blend that is entered by described chute rolls;
Described intermediate buffering storehouse links to each other with described planetary type wheel mill by the first transfer roller, with the material buffer memory after rolling;
Described high-pressure ball press links to each other with described intermediate buffering storehouse by rotary conveyor, and the material after described rotary conveyor will roll is sent into described high-pressure ball press, forms the pelletizing of moulding.
2. lignite semi-coke powder shaped device according to claim 1 is characterized in that, also comprises:
Vertical drying oven links to each other with described high-pressure ball press by second conveyor, and described second conveyor is sent the pelletizing of moulding into described vertical kiln dried.
3. lignite semi-coke powder shaped device according to claim 1 is characterized in that, also comprises:
Surge bunker is arranged on described feed bin and is used for before holding the rear lignite semi-coke powder of setting the granularity particle of screening, and links to each other with described feed bin by worm conveyor, and lignite semi-coke powder is wherein sent into described feed bin.
4. lignite semi-coke powder shaped device according to claim 1 is characterized in that, also comprises:
The dedusting closed system, be arranged on described lignite semi-coke powder shaped device around.
5. lignite semi-coke powder shaped device according to claim 1 is characterized in that, the number of described planet-style wheel roller wheel is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313173 CN202829983U (en) | 2012-06-28 | 2012-06-28 | Forming device for lignite semi-coke powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313173 CN202829983U (en) | 2012-06-28 | 2012-06-28 | Forming device for lignite semi-coke powder |
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| CN202829983U true CN202829983U (en) | 2013-03-27 |
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| CN 201220313173 Expired - Fee Related CN202829983U (en) | 2012-06-28 | 2012-06-28 | Forming device for lignite semi-coke powder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889072A (en) * | 2015-06-10 | 2015-09-09 | 安庆市凌康机电产品设计有限公司 | Humidity and weight monitoring device for briquette making machine |
| CN105112942A (en) * | 2015-09-30 | 2015-12-02 | 济南海川投资集团有限公司 | Petroleum coke-manufactured aluminium electrolysis anode formed coke and preparing process and device thereof |
-
2012
- 2012-06-28 CN CN 201220313173 patent/CN202829983U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889072A (en) * | 2015-06-10 | 2015-09-09 | 安庆市凌康机电产品设计有限公司 | Humidity and weight monitoring device for briquette making machine |
| CN105112942A (en) * | 2015-09-30 | 2015-12-02 | 济南海川投资集团有限公司 | Petroleum coke-manufactured aluminium electrolysis anode formed coke and preparing process and device thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20190628 |
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| CF01 | Termination of patent right due to non-payment of annual fee |