CN103148692B - Vertical briquette dryer - Google Patents
Vertical briquette dryer Download PDFInfo
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- CN103148692B CN103148692B CN201310117428.XA CN201310117428A CN103148692B CN 103148692 B CN103148692 B CN 103148692B CN 201310117428 A CN201310117428 A CN 201310117428A CN 103148692 B CN103148692 B CN 103148692B
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Abstract
The invention relates to the field of drying machines, in particular to a vertical briquette dryer, which comprises a furnace body with a feed port at the top, wherein a negative pressure induced draft tube is arranged at the upper part of the furnace body and is provided with an air inlet communicated with the inner cavity of the furnace body and an air outlet connected with a corresponding waste gas treatment device, and the feed port of the furnace body is positioned above the air inlet of the negative pressure induced draft tube. In the use process, hot air exchanging heat with briquettes and waste gas generated in the briquette heating process are sucked and conveyed to the corresponding waste gas device to be centralizedly treated before reaching to the feed port of the furnace body, thereby the waste gas and dust are prevented from drifting to the surrounding environment from the feed port of the furnace body, and the environmental pollution problem caused by the waste gas from the furnace body is solved; and in addition, because of the suction action of the negative pressure induced draft tube, the residence time of the waste gas in the furnace body is greatly reduced, and thus the corrosion of the waste gas to the furnace body is reduced, and the problem that the briquette dryer is easily damaged is solved.
Description
Technical field
The present invention relates to dryer field, particularly relate to a kind of vertical briquette dryer.
Background technology
Along with the fast development of national economy, the energy--especially the demand of Coal Energy Source rapidly increases, and in order to reduce coal consumption, the combustion system of chemical industry many employings type coal gasification, the shaping deep process technology of coal slime is also widely adopted thus.In moulded coal production process, the oven dry of " wet bulb ", namely moulded coal oven dry is one of the most key operation.
In the process that moulded coal is dried, inevitably drying plant will be used, and briquette drying machine is exactly one of the most frequently used drying plant arrived.Briquette drying machine is also tower drier, dehydration for moulded coal and breeze pressure ball group designs, it comprises body of heater, air channel is provided with in body of heater, being encircled a city by corresponding orifice plate in air channel, during use, first in air channel, passes into hot blast, then " water polo " after shaping is transported to body of heater top by belt feeder, is evenly distributed to furnace roof total cross-section by distribution device.Moulded coal leans on gravity slowly to move down while carry out heat exchange with hot blast on its orbit, and in the process, the moisture that moulded coal evaporates is taken away at random by hot blast again, after the drying of setting-up time, just can make the drying values that moulded coal reaches certain.
The briquette drying machine with said structure obtains in actual production to be applied very widely, and also step by step be modified and perfect, but it is developed so far but still exists following problem: first, because the moulded coal before drying itself often exists acidic materials, at moulded coal by the process of drying, these acidic materials are also discharged simultaneously, acidic materials after release are along with the hot blast migration passed in body of heater and etching apparatus, it is once be discharged, also can cause direct adverse effect to external environment, but, in current dryer, all corresponding emission-control equipment is not set, in the process used, the pernicious gas discharged from moulded coal is along with the hot blast rising passed into, and do in body of heater and directly after stopping relatively for a long time enter air by body of heater top, this is obviously totally unfavorable, secondly, moulded coal is being produced dust by meeting unavoidable in the process of drying, in actual production process, a large amount of dust from the top of body of heater, bottom, especially bottom discharge mouth is blown out, production site flue dust is filled the air, these dust can pollute the environment of production occasion on the one hand, bring adverse effect, on the other hand to the health of staff, because described dust is all formed by coal dust, even there is the hidden danger of blast in the coal dust in air after reaching certain concentration, moreover air channel is surrounded by orifice plate, in production process, owing to considering the intensity of orifice plate, if the perforate on orifice plate is too much, then thicker steel plate need be adopted accordingly to make, and this will certainly increase the cost of drying machine, increases its weight, according to thinner steel plate, then the quantity of perforate must reduce accordingly, and the minimizing of the number of openings can not contact with moulded coal fully by directly causing the hot blast passed in the future, causes the waste of energy, causes the decline of the drying efficiency of dryer.
Summary of the invention
The object of the present invention is to provide a kind of vertical briquette dryer, to solve the problem of the fragile and contaminated environment that current vertical briquette dryer causes owing to reasonably can not process waste gas.
In order to solve the problem, vertical briquette dryer of the present invention is by the following technical solutions: vertical briquette dryer, comprise body of heater, the top of described body of heater is provided with charge door, bottom it, there is discharge gate, the top of body of heater is provided with negative pressure induced wind pipe, and described negative pressure induced wind pipe has and the air inlet of the inner space of body of heater and the air outlet for being connected with corresponding emission-control equipment, and the charge door of body of heater is positioned at above the air inlet of negative pressure induced wind pipe.
The top of body of heater is provided with cone, and described charge door is positioned at the top of cone, the air inlet of negative pressure induced wind pipe in cone with the inner space of body of heater.
The middle part of body of heater inner chamber is provided with air channel, and described air channel is surrounded by grid section formula web plate.
The inner chamber of body of heater from bottom to top be divided into the initial baking zone of material compacting baking zone, material and material compacting cooling zone, described air channel is arranged in the initial baking zone of material of body of heater inner chamber.
The bottom of described body of heater is provided with negative pressure dust flue, and negative pressure dust flue has and the suction port of the inner space of body of heater and the dust-exhausting port for being connected with corresponding dust treatment plant, and the discharge gate of body of heater is positioned at below the suction port of negative pressure dust flue.
The bottom of described body of heater is provided with reverse taper, and discharge gate is positioned at the bottom of reverse taper, the suction port of described negative pressure dust flue on described reverse taper with the inner space of body of heater.
The air outlet of described negative pressure induced wind pipe and the dust-exhausting port of negative pressure dust flue all access in same air inducing case.
Negative pressure induced wind pipe and negative pressure dust flue are all connected to a wet dust separater by described air inducing case.
Because vertical briquette dryer of the present invention is provided with negative pressure induced wind pipe on the top of its body of heater, negative pressure induced wind pipe has and the air inlet of the inner space of body of heater and the air outlet for being connected with corresponding emission-control equipment, and the charge door of body of heater is positioned at above the air inlet of negative pressure induced wind pipe, therefore, in the process used, carried out to moulded coal waste gas that the hot blast of heat exchange and moulded coal produce in by heating process just to be aspirated by negative pressure induced wind pipe and be transported to corresponding exhaust device before the charge door arriving body of heater and focus on, and negative pressure induced wind pipe can play the effect of suction upper of furnace body dust simultaneously, they just collected by it before waste gas and dust discharge body of heater in body of heater, thus waste gas and dust can be avoided to fly away in surrounding environment from the charge door of body of heater, solve the problem of environmental pollution caused by the waste gas of body of heater, in addition, due to the swabbing action of negative pressure induced wind pipe, the time that waste gas stops in body of heater greatly reduces, thus decrease its corrosion to body of heater, solve the flimsy problem of moulded coal drying machine.In sum, this vertical briquette dryer solves the problem of the fragile and contaminated environment that current vertical briquette dryer causes owing to reasonably can not process waste gas.
Further, the cone at body of heater top can be used for guiding waste gas to gather, thus creates favorable conditions for the work of negative pressure induced wind pipe; The air channel that surrounded by grid section formula web plate on the one hand can proof strength, the moulded coal by drying also can be made fully to contact with hot blast on the other hand, the operating efficiency of raising drying machine; Negative pressure dust flue is used for by its collected at suction before dust is blown out from the discharging opening of body of heater, thus realizes the process to dust at furnace interior, avoids its contaminated environment; Inverted pyramidal structures is the place in order to guide moulded coal to drop down onto setting on the one hand, dust also can be assisted to converge, for the work of negative pressure dust flue is provided convenience on the other hand; Negative pressure induced wind pipe and negative pressure dust flue are accessed an air inducing case provide operation power by same air inducing case for the two simultaneously, decrease the parts needed for drying machine, reduce the cost of drying machine; Employing wet dust separater can realize the primary purification process to dust and waste gas, decreases the number of devices of drying machine, reduces its cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of vertical briquette dryer;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the structural representation in the air channel in Fig. 1;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the top view of Fig. 4.
Detailed description of the invention
The embodiment of vertical briquette dryer, as shown in figures 1 to 6, comprises body of heater 11, and cylindrically, its top has cone 12 to the main part of body of heater 11, and bottom has reverse taper 13, and the top of cone 12 has charge door, and the bottom of reverse taper 13 has discharging opening; In addition, body of heater 11 is also equipped with negative pressure induced wind pipe 14 and negative pressure dust flue 15, negative pressure induced wind pipe 14, as its name suggests, utilize the pipeline that the air-flow in body of heater 11 is outwards drawn by principle of negative pressure exactly, during work, make its inner formation negative pressure by connecting corresponding negative pressure generator (blower fan, bellows etc.) at its air outlet place; Accordingly, negative pressure dust flue 15 is exactly utilize principle of negative pressure to be drawn by the dust in body of heater 11, to realize the pipeline of the dust discharge of body of heater 11, during work, also negative pressure is formed by installing corresponding negative pressure generator additional to make its suction port place, negative pressure induced wind pipe 14 by its air inlet in cone with the inner space of body of heater 11, locate above the air inlet that the charge door of body of heater 11 is then positioned at negative pressure induced wind pipe 14, in the course of work of reality, the waste gas produced in body of heater 11 was just aspirated by negative pressure induced wind pipe 14 and walks before the charge door arriving body of heater 11; Negative pressure dust flue 15 by its suction port on reverse taper 13 with the inner space of body of heater 11, locate above the suction port that the discharging opening of body of heater 11 is positioned at negative pressure dust flue 15, in the course of work, the dust produced in body of heater 11 was just aspirated by negative pressure dust flue 15 and walks before the discharging opening arriving body of heater 11; In the present embodiment, the air outlet of negative pressure induced wind pipe 14 and the dust-exhausting port of negative pressure dust flue 15 pool a road by a female pipe 16.The inner chamber of body of heater 11 from bottom to top be divided into the initial baking zone of material compacting baking zone, material and material compacting cooling zone, wherein, air channel 17 is provided with in the initial baking zone of described material, air channel 17 has many and is surrounded by grid section formula web plate, grid section formula web plate is made up of support frame and the steel bar that is coated on support frame outside, the lateral surface of body of heater 11 is provided with hot blast distributing pipe 18 in the import department in air channel, hot blast distributing pipe 18 has hot blast dispensing orifice, hot blast can be dispensed among each air channel by hot blast dispensing orifice.
In other embodiment of vertical briquette dryer, also by described female pipe negative pressure induced wind pipe and negative pressure dust flue be connected to same air inducing case and be connected wet dust separater by air inducing case, using air inducing case as the two common depression generator, carry out the treating apparatus simultaneously as waste gas and dust by wet dust separater.
Claims (6)
1. vertical briquette dryer, comprise body of heater, the top of described body of heater is provided with charge door, bottom it, there is discharge gate, it is characterized in that, the top of body of heater is provided with negative pressure induced wind pipe, and described negative pressure induced wind pipe has and the air inlet of the inner space of body of heater and the air outlet for being connected with corresponding emission-control equipment, and the charge door of body of heater is positioned at above the air inlet of negative pressure induced wind pipe; The bottom of described body of heater is provided with negative pressure dust flue, and negative pressure dust flue has and the suction port of the inner space of body of heater and the dust-exhausting port for being connected with corresponding dust treatment plant, and the discharge gate of body of heater is positioned at below the suction port of negative pressure dust flue; The air outlet of described negative pressure induced wind pipe and the dust-exhausting port of negative pressure dust flue all access in same air inducing case.
2. vertical briquette dryer according to claim 1, is characterized in that, the top of body of heater is provided with cone, and described charge door is positioned at the top of cone, the air inlet of negative pressure induced wind pipe in cone with the inner space of body of heater.
3. vertical briquette dryer according to claim 1, is characterized in that, the middle part of body of heater inner chamber is provided with air channel, and described air channel is surrounded by grid section formula web plate.
4. vertical briquette dryer according to claim 3, is characterized in that, the inner chamber of body of heater from bottom to top be divided into the initial baking zone of material compacting baking zone, material and material compacting cooling zone, described air channel is arranged in the initial baking zone of material of body of heater inner chamber.
5. vertical briquette dryer according to claim 1, is characterized in that, the bottom of described body of heater is provided with reverse taper, and discharge gate is positioned at the bottom of reverse taper, the suction port of described negative pressure dust flue on described reverse taper with the inner space of body of heater.
6. vertical briquette dryer according to claim 1, is characterized in that, negative pressure induced wind pipe and negative pressure dust flue are all connected to a wet dust separater by described air inducing case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117428.XA CN103148692B (en) | 2013-04-07 | 2013-04-07 | Vertical briquette dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310117428.XA CN103148692B (en) | 2013-04-07 | 2013-04-07 | Vertical briquette dryer |
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| CN103148692A CN103148692A (en) | 2013-06-12 |
| CN103148692B true CN103148692B (en) | 2015-05-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398560B (en) * | 2013-07-11 | 2016-04-13 | 柳州化工股份有限公司 | Automatic removing dust drying furnace for formed coal |
| CN103398559B (en) * | 2013-07-11 | 2015-07-29 | 柳州化工股份有限公司 | A kind of method that moulded coal is dried |
| CN105505515A (en) * | 2016-02-04 | 2016-04-20 | 蔡京鹏 | Drying device for brown coal or low metamorphic long flame coal and method of drying device |
| CN105928357B (en) * | 2016-06-20 | 2019-04-09 | 高邑县海侨节能技术有限公司 | A kind of desiccant inclined kiln of particulate matter |
| CN109084562A (en) * | 2018-09-20 | 2018-12-25 | 郑州长城冶金设备有限公司 | A kind of horizontal drying machine |
| CN109579458B (en) * | 2018-12-27 | 2023-06-16 | 唐山鸿田生物质科技开发有限公司 | Vertical drying furnace for molded coal |
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| CN2179558Y (en) * | 1993-05-20 | 1994-10-12 | 吴军港 | Outlet device of circulating rice drier |
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| CN103148692A (en) | 2013-06-12 |
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Application publication date: 20130612 Assignee: Zhengzhou Shenzhou Heavy Equipment Co.,Ltd. Assignor: ZHENGZHOU GREAT WALL METALLURGICAL EQUIPMENT CO.,LTD. Contract record no.: X2023980034758 Denomination of invention: A vertical briquette dryer Granted publication date: 20150527 License type: Common License Record date: 20230419 |