CN103148696B - Device for preparing hot air for drying of clay mineral powder - Google Patents

Device for preparing hot air for drying of clay mineral powder Download PDF

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CN103148696B
CN103148696B CN201310066713.3A CN201310066713A CN103148696B CN 103148696 B CN103148696 B CN 103148696B CN 201310066713 A CN201310066713 A CN 201310066713A CN 103148696 B CN103148696 B CN 103148696B
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ash
air
gas
dropping hopper
water
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CN103148696A (en
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刘松
张忠飞
张存龙
陈丽昆
李心昌
周方达
黄华
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CHINA KAOLIN CLAY Co Ltd
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CHINA KAOLIN CLAY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
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Abstract

The invention relates to a device for preparing hot air for drying of clay mineral powder. The hot air preparation device is characterized by comprising a gas generation furnace; a first blast blower and a speed-regulating motor are arranged outside the gas generation furnace; the first blast blower is connected with the lower part of a furnace body through a pipeline; the speed-regulating motor is in transmission connection with an ash pan; a main ash receiving hopper is arranged outside the gas generation furnace; the next level of the main ash receiving hopper is provided with a cyclone dust collector; the next level of the cyclone dust collector is provided with first to fourth levels of residual ash receiving hoppers; the next level of the residual ash receiving hopper is provided with one to four gas combustion furnaces; a second blast blower is arranged corresponding to each gas combustion furnace; each gas combustion furnace is provided with a hot air outlet; all the hot air outlets are connected in parallel through pipelines to form a total hot air outlet; and the next level of the gas combustion furnace is provided with an air distributor. When the device is used for preparing the hot air, the heat efficiency is high, the temperature of the hot air can be controlled, the coal consumption is low, the obtained hot air is clean, the quality of the clay mineral products is not influenced, and the device is simple and convenient to operate.

Description

A kind of clay mineral powder body dry-heat air preparation facilities
Technical field
The present invention relates to clay mineral powder drying technical field, be specifically related to a kind of clay mineral powder body dry-heat air preparation facilities, this device can be for the preparation of the clean hot blast of clay mineral powder drying.
Background technology
Clay mineral is one of modern functions material, in modern industry development, plays an important role.Over nearly 20 years, China's clay mineral powder drying technology has had marked improvement, already formed suitable scale, the more than one hundred million tons of the gross annual output amount of all kinds of clay mineral powders are used widely in the conventional industries such as hi tech and new material industry and papermaking, plastics, rubber, coating, building materials, metallurgy, light industry, chemical industry and environmental protection industry.
Clay mineral is a kind of moisture silicate or aluminium silicate mineral, is the one of nonmetallic mineral, and clay mineral dry mainly contains three kinds of modes: one, adopt traditional manual hot-blast stove to be dried; Two, adopt traveling-grate stoker hot-blast stove or the even coal charging type hot-blast stove of reciprocal grate to be dried; Three, adopt Coal powder spray formula hot-blast stove to be dried.Manual hot-blast stove is to adopt hand firing, and utilizes extraneous natural wind to enter furnace chamber after hot-blast stove perisporium cyclic preheat, carries out work under blower negative pressure, and it is mainly used in product appearance is required to undemanding thermal source industry.Although traditional-handwork hot-blast stove is simple in structure, floor space is little, easy to operate, hand firing's temperature control difficulty, the environmental issues such as coal-fired smoke abatement and dust control sulphur removal are difficult to solve, and easily cause secondary pollution, and operating cost is high.Evenly coal of the even coal charging type hot-blast stove of traveling-grate stoker hot-blast stove or reciprocal grate, burning and temperature are more steady, but complex structure, floor space is large, without desulfurizing device.Coal powder spray formula Combustion of Hot Air Furnace is insufficient, and the thermal efficiency is low, and hot blast temperature is uncontrollable, and drying effect is undesirable.
Therefore, how to design that a kind of thermal efficiency is high, hot blast temperature is controlled, coal consumption is low, hot blast is clean, clay mineral product quality become to the problem of the present invention's research without impact and clay mineral powder body dry-heat air preparation facilities simple to operation.
Summary of the invention
The invention provides a kind of clay mineral powder body dry-heat air preparation facilities, its object is to solve that the thermal efficiency that existing hot blast preparation facilities exists is low, hot blast temperature control difficulty, hot blast are unholiness, have considerable influence problem to clay mineral product quality.
For achieving the above object, the technical solution used in the present invention is: a kind of clay mineral powder body dry-heat air preparation facilities, this hot blast preparation facilities has a gas generator, this gas generator is mainly made up of firing machine, body of heater, ash-pan, coal gas efferent duct, wherein, body of heater is positioned at the middle part of described gas generator, firing machine is positioned at the top of described gas generator and is fixedly connected with body of heater, ash-pan is positioned at the bottom of described gas generator, and coal gas efferent duct is located at upper of furnace body and is communicated with the furnace chamber of body of heater; Described gas generator is provided with the first air blast and variable-speed motor outward, and the first air blast is connected with lower portion of furnace body by pipeline, and variable-speed motor and described ash-pan are in transmission connection, the relative body of heater rotating support of ash-pan; Described gas generator is also provided with main ash dropping hopper outward, and main ash dropping hopper is one to be used for receiving the container of dust stratification dirt, and coal gas efferent duct is communicated with the container of main ash dropping hopper, and connectivity part is positioned at the upper position of main ash dropping hopper; The next stage of main ash dropping hopper is provided with cyclone dust collectors, and cyclone dust collectors have an inlet scoop and an air outlet, and described inlet scoop is communicated with the container of main ash dropping hopper by pipeline; The next stage of cyclone dust collectors is provided with one-level to level Four ash ash dropping hopper, every grade of ash ash dropping hopper is made up of a container that is used for receiving cumulative ash, the container of ash ash dropping hoppers at different levels is connected in series successively by pipeline, and the air outlet of cyclone dust collectors is communicated with the container of first order ash ash dropping hopper; The next stage of ash ash dropping hopper is provided with one to four gas fired furnace, the container of afterbody ash ash dropping hopper is connected with one to four gas fired furnace respectively by pipeline, corresponding gas fired furnace is provided with the second air blast, be connected with each gas fired furnace respectively, each gas fired furnace is equipped with a hot-blast outlet, and all hot-blast outlets are connected in parallel and are formed hot blast general export by pipeline; The next stage of gas fired furnace is provided with air register, this air register mainly by distribution plenum, the first air inlet, the second air inlet, blend air port and air distribution valve forms, hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, air distribution valve is located in distribution plenum, and be positioned at the second air inlet and blend on the passage in air port, to regulate the inlet of extraneous cold wind.
Related content in technique scheme is explained as follows:
1,, in such scheme, gas generator is to produce coal gas taking coal as raw material, for the device of gas-fired equipment.Solid material coal adds from furnace roof portion, moves down with the operation of gas burner, in meeting with the gasifying agent entering from furnace bottom (air, steam) adverse current, heated by furnace bottom fuel bed high-temperature gas, and physics, chemical reaction occur, and produces raw gas.This raw gas (being heating gas) can be directly for combustion apparatus after thick dedusting.Wherein, the organic substance (air, water vapour) that plays oxidation is called gasifying agent, generates the mist that contains hydrogen, carbon monoxide and methane etc. and is called coal gas.
2, in such scheme, the next stage of described cyclone dust collectors is provided with one-level to level Four ash ash dropping hopper and refers to that the next stage of cyclone dust collectors is provided with one-level ash ash dropping hopper or secondary ash ash dropping hopper or three grades of ash ash dropping hoppers or level Four ash ash dropping hopper, wherein, " ash ash dropping hopper at different levels " refers to the situation when next stage of cyclone dust collectors is provided with secondary to level Four ash ash dropping hopper.
3, in such scheme, described main ash dropping hopper, cyclone dust collectors, the other liquid packing that is also equipped with of ash ash dropping hopper, this liquid packing is a grooved container, in grooved container, be marked with water, each liquid packing is all connected with the bottom of the container of described main ash dropping hopper, cyclone dust collectors, ash ash dropping hopper by reaching undersurface pipeline; The other water filter that is provided with of described gas fired furnace, this water filter is mainly made up of tank, case, air inlet pipe and escape pipe, wherein, in tank, be marked with water, the upper end of tank is hatch frame, and case is the container of a lower ending opening, and the opening part of case lower end is inserted into the underwater of tank, air inlet pipe is inserted into water filter from the top of case and extend into below the water surface, and escape pipe is inserted into water filter and more than extending into the water surface from the top of case.
Wherein, the effect of the liquid packing that main ash dropping hopper, cyclone and ash ash dropping hopper connect is to seal coal gas, prevents that coal gas from leaking; The effect of water filter that gas fired furnace connects is to clean when being about to enter the coal gas in gas fired furnace and preventing that gas pressure is too low or stop coal gas suddenly, and tempering occurs.
4, in such scheme, the body of heater of described gas generator is made up of the inner furnace body coaxially arranging and external furnace body, is formed with annulated column clevis layer between inner furnace body and external furnace body; Described gas generator is outside equipped with moisture trap and water purification system; Described water purification system is connected to form by cistern, water demineralizer, circulating water pool, supply-water pump successively; Moisture trap is provided with water inlet, the first row mouth of a river, the second row mouth of a river, air inlet, first row gas port and second row gas port, wherein, described water inlet is connected with the supply-water pump of described water purification system by pipeline, the described first row mouth of a river is connected with described annulated column clevis layer by pipeline, the described second row mouth of a river is in communication with the outside, described air inlet is connected with described annulated column clevis layer by pipeline, described first row gas port is connected with described the first air blast by pipeline, and described second row gas port is in communication with the outside.
Softening agent ion exchange resin is housed in described water demineralizer, application ion exchange technique, exchange by calcium, magnesium ion in functional ionic and water on resin, thereby unnecessary calcium, magnesium ion in adsorbed water, reach the object of removing incrustation scale (calcium carbonate or magnesium carbonate), finally obtain soft water.
5,, in such scheme, described cyclone dust collectors are a kind of equipment that utilizes flue gas High Rotation Speed to carry out inertial separation dedusting.Dust removal mechanism is that dust-contained airflow is rotated, and separates and traps in wall by means of centrifugal force depositing dust grain from air-flow, relends and helps Action of Gravity Field to make grit fall into ash bucket.
6, in such scheme, described gas fired furnace is the equipment that burning coal gas produces heated drying air (being dry-heat air), described gas fired furnace is mainly made up of burner and combustion furnace body of heater, burner is for igniting, play the effect that distributes fuel and combustion air and spray in a certain way after-combustion, then coal gas burns to produce clean hot blast in combustion furnace body of heater.
7, in such scheme, the effect of described air register is to enter to control hot blast temperature by what control extraneous cold wind, and air register also has a shell and temp controlled meter, is controlled the inlet of extraneous cold wind by the cooperation of temp controlled meter and air distribution valve.
Design concept of the present invention and operation principle are: clay mineral powder body dry-heat air preparation facilities of the present invention is mainly made up of gas generator, main ash dropping hopper, cyclone dust collectors, ash ash dropping hopper, liquid packing, water filter, gas fired furnace, air register, air blast.In the time that this hot blast preparation facilities does not have water purification system and moisture trap, gasifying agent is air, and gas generator is air-producer gas generator; In the time that this hot blast preparation facilities is provided with water purification system and moisture trap, gasifying agent is the mist of steam or steam and air, and gas generator is mixed gas producer.Above the firing machine of gas generator, can also be equipped with coal crane, to transfer the fuel coal in firing machine.Taking stone coal or bituminous coal etc. as raw material, make gasifying agent with the mist of steam or steam and air, produce the gasification gas taking carbon monoxide and hydrogen as main combustible component.
When gas processed starts, add slag by firing machine in the bottom of ash-pan, then the fire hole place of middle part one side adds the timber for burning on body of heater, add in batches anthracite, and from top to down slowly moves after lighting by firing machine.When igniting, gas generator bottom has the first air blast inwardly to ventilate.Finally, in body of heater, form five conversion zones, be referred to as from down to up ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer.The gasifying agent being made up of air and water vapour, enters in gas generator from furnace bottom fire grate, sails against the current from bottom to up, and be uniformly distributed between each conversion zone, carry out heat exchange and series of chemical, the coal gas producing, discharges from the coal gas efferent duct of upper of furnace body.Afterwards, produced lentamente mixed gas.The cinder producing is discharged by rotating slowly by ash-pan, when in body of heater, each layer height is not enough, by adding new coal, so circulates.
In the time that this hot blast preparation facilities does not have water purification system and moisture trap, for ensureing the too high infringement body of heater of furnace body temperature, body of heater surfacing adopts refractory material, for example refractory brick; In the time that this hot blast preparation facilities is provided with water purification system and moisture trap, too high for ensureing that furnace body temperature is difficult for, the soft water obtaining after water purification system is processed enters after moisture trap, enter annulated column clevis layer, soft water in the time that furnace body temperature is too high in annulated column clevis layer is vaporized into steam, steam is by after moisture trap, and a part of steam enters in gas generator as gasifying agent through air blast again, and another part steam is emptying.
In the time of gas processed, the operation principle of gas generator is: the program of carrying out according to gasification in gas generator, producer inside roughly can be divided into five conversion zones, and be respectively from down to up:
(1) ash bed
In fire grate top, the ash bed forming through combustion reaction, after carrying out heat exchange by the gasifying agent entering with drum, temperature declines to some extent, can protect fire grate that it is not burned, and again gasifying agent is played to certain pre-heat effect.
(2) oxide layer
One of main section of gasification reaction process in stove.Through the gasifying agent of ash bed preheating, walk from bottom to top, with scorching hot coke haptoreaction, and emit a large amount of heat.The temperature of stove internal oxidation layer is the highest, conventionally can reach 1100 ~ 1200 DEG C.In oxide layer, the oxygen in gasifying agent is consumed rapidly totally and generates CO2.
(3) reducing zone
Reducing zone is the vaporized important place of carbon.This layer of bottom, the air-flow being mixed by newly-generated CO2 and steam and N2, upwards flows with the speed of 3 ~ 6m/s, simultaneously and the scorching hot charcoal material haptoreaction moving down with the speed of 10 ~ 40cm/s.Now CO2 is reduced into CO, also has the carbon reaction of analysing of CO to occur simultaneously.Then the steam in gasifying agent, with the decomposition reaction of carbon raw material generation steam, and have adjusting furnace temperature, protection fire grate function.There are CO, CO2, H2, CH4 and the steam not being decomposed and nitrogen by the gas of reducing zone.Oxide layer and reducing zone, be referred to as gasification layer.
The coal gas generating by oxide layer and reducing zone, is called gasification gas, because the few calorific value of methane content is low also referred to as poor gas, wherein contains tar and coal grain and the dust of minute quantity.The gasification gas of this part high sensible heat, rises to destructive distillation layer, for the low temperature distillation of coal provides thermal source.
(4) destructive distillation layer
The Gas Flow rising by gasification layer enters destructive distillation layer.Destructive distillation layer is the reaction section that has characteristic with retort section gas burner.Enter the heat-carrying gas in destructive distillation layer, temperature is about below 700 DEG C.Substantially no longer produce above-mentioned little intermolecular gasification reaction at this section, but carry out the low temperature distillation of coal, generate higher dry distillation gas (gas composition has H2, CH4, C2H6, C3, C4 component and gaseous state tar ingredients), low temperature distillation tar and the semicoke (fugitive constituent in semicoke is about 7 ~ 10%) of calorific value, dry distillation gas is drawn from the top exit of gas burner together with the poor gas of gasification section generation with vaporific tar.After moving down into gasification section, the semicoke generating reduces and oxidation reaction.
(5) drying layer drying layer is positioned at above destructive distillation layer, that is to say the surface layer of fuel, is mainly that the water in coal is sent out to evaporation.
The mixed gas producing enters main ash dropping hopper through coal gas efferent duct, deposits the dust of carrying secretly in most of mixed gas in main ash dropping hopper; Coal gas enters cyclone dust collectors afterwards, and cyclone dust collectors can powerful remove portion dust; Coal gas enters in multistage ash ash dropping hopper again, further deposits part ash; Due in gas fired furnace now in negative pressure state, coal gas after purifying and dedusting in entering gas fired furnace together with air that the second air blast blasts burning produce clean hot blast, wherein, the effect of the second air blast is herein to control gas-fired amount.
Because technique scheme is used, the advantage that the present invention compared with prior art has and beneficial effect are: hot blast preparation facilities of the present invention coal consumption is low; Simple to operation, easily study; The thermal efficiency producing is high, and heat utilization efficiency reaches more than 80%; The hot blast temperature producing is controlled, and dry rear clay mineral product moisture is all below 1%; Hot blast cleaning, thus the quality of clay mineral powder is not exerted an influence, and clay mineral whiteness is unchanged in dry front and back.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of hot blast preparation facilities of the present invention;
Accompanying drawing 2 is the local enlarged diagram in hot blast preparation facilities of the present invention;
Accompanying drawing 3 is the A-A cross-sectional schematic of accompanying drawing 2;
Accompanying drawing 4 is the water filter structure cross-sectional schematic in hot blast preparation facilities of the present invention;
The technique course diagram that accompanying drawing 5 is clay mineral powder body dry-heat air preparation facilities of the present invention.
In above accompanying drawing: 1, gas generator; 2, firing machine; 3, body of heater; 4, ash-pan; 5, coal gas efferent duct; 6, the first air blast; 7, variable-speed motor; 8, main ash dropping hopper; 9, cyclone dust collectors; 10, ash ash dropping hopper; 11, gas fired furnace; 12, hot-blast outlet; 13, the second air blast; 14, liquid packing; 15, inner furnace body; 16, external furnace body; 17, annulated column clevis layer; 18, moisture trap; 19, cistern; 20, water demineralizer; 21, circulating water pool; 22, supply-water pump; 23, air register; 24, water filter.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of clay mineral powder body dry-heat air preparation facilities
Shown in accompanying drawing 1 and accompanying drawing 2, this hot blast preparation facilities has a gas generator 1, this gas generator 1 is mainly made up of firing machine 2, body of heater 3, ash-pan 4, coal gas efferent duct 5, wherein, body of heater 3 is positioned at the middle part of described gas generator 1, firing machine 2 is positioned at the top of described gas generator 1 and is fixedly connected with body of heater 3, and ash-pan 4 is positioned at the bottom of described gas generator 1, and coal gas efferent duct 5 is located at body of heater 3 tops and is communicated with the furnace chamber of body of heater 3; The body of heater 3 of described gas generator 1 is made up of the inner furnace body 15 coaxially arranging and external furnace body 16, is formed with annulated column clevis layer 17, between inner furnace body 15 and external furnace body 16 shown in accompanying drawing 3; Described gas generator 1 is provided with the first air blast 6 outward and variable-speed motor 7, the first air blasts 6 are connected with body of heater 3 bottoms by pipeline, and variable-speed motor 7 is in transmission connection with described ash-pan 4, relative body of heater 3 rotating supports of ash-pan 4; Above firing machine 2, gas generator 1 also has a coal crane, to transfer the fuel coal in firing machine.Described gas generator 1 is outside equipped with moisture trap 18 and water purification system; Described water purification system is connected to form by cistern 19, water demineralizer 20, circulating water pool 21, supply-water pump 22 successively; Moisture trap 18 is provided with water inlet, the first row mouth of a river, the second row mouth of a river, air inlet, first row gas port and second row gas port, wherein, described water inlet is connected with the supply-water pump 22 of described water purification system by pipeline, the described first row mouth of a river is connected with described annulated column clevis layer 17 by pipeline, the described second row mouth of a river is in communication with the outside, described air inlet is connected with described annulated column clevis layer 17 by pipeline, described first row gas port is connected with described the first air blast 6 by pipeline, and described second row gas port is in communication with the outside.
Described gas generator 1 is outer is also provided with main ash dropping hopper 8, and main ash dropping hopper 8 is one to be used for receiving the container of dust stratification dirt, and coal gas efferent duct 5 is communicated with the container of main ash dropping hopper 8, and connectivity part is positioned at the upper position of main ash dropping hopper 8; The next stage of main ash dropping hopper 8 is provided with cyclone dust collectors 9, and cyclone dust collectors 9 have an inlet scoop and an air outlet, and described inlet scoop is communicated with the container of main ash dropping hopper 8 by pipeline; The next stage of cyclone dust collectors 9 is provided with three grades of ash ash dropping hoppers 10, every grade of ash ash dropping hopper 10 is made up of a container that is used for receiving cumulative ash, the container of ash ash dropping hoppers 10 at different levels is connected in series successively by pipeline, and the air outlet of cyclone dust collectors 9 is communicated with the container of first order ash ash dropping hopper 10; The next stage of ash ash dropping hopper 10 is provided with three gas fired furnaces 11, the container of afterbody ash ash dropping hopper 10 is connected with three gas fired furnaces 11 respectively by pipeline, corresponding gas fired furnace 11 is provided with the second air blast 13, be connected with each gas fired furnace 11 respectively, each gas fired furnace 11 is equipped with a hot-blast outlet 12, and all hot-blast outlets 12 are connected in parallel and are formed hot blast general export by pipeline; The next stage of gas fired furnace 11 is provided with air register 23, this air register 23 mainly by distribution plenum, the first air inlet, the second air inlet, blend air port and air distribution valve forms, hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, air distribution valve is located in distribution plenum, and be positioned at the second air inlet and blend on the passage in air port, to regulate the inlet of extraneous cold wind.
Described main ash dropping hopper 8, cyclone dust collectors 9, the other liquid packing 14 that is equipped with of ash ash dropping hopper 10, this liquid packing 14 is a grooved container, in grooved container, be marked with water, each liquid packing 14 is all connected with the bottom of the container of described main ash dropping hopper 8, cyclone dust collectors 9, ash ash dropping hopper 10 by reaching undersurface pipeline; The other water filter 24 that is provided with of described gas fired furnace 11, this water filter 24 is mainly made up of tank, case, air inlet pipe and the pipe of going out, wherein, in tank, be marked with water, the upper end of tank is hatch frame, case is the container of a lower ending opening, the opening part of case lower end is inserted into the underwater of tank, air inlet pipe is inserted into water filter 24 from the top of case and extend into below the water surface, escape pipe is inserted into water filter 24 and more than extending into the water surface, shown in accompanying drawing 4 from the top of case.
The duty of the present embodiment and principle are: the technological process of the present embodiment is referring to shown in accompanying drawing 5, taking stone coal or bituminous coal etc. as raw material, make gasifying agent with the mist of steam or steam and air, produce the gasification gas taking carbon monoxide and hydrogen as main combustible component.When gas processed starts, add slag by firing machine 2 in the bottom of ash-pan 4, then the fire hole place of middle part one side adds the timber for burning on body of heater 3, add in batches anthracite, and from top to down slowly moves after lighting by firing machine 2.When igniting, gas generator 1 bottom has the first air blast 6 inwardly to ventilate.Finally, in body of heater 3, form five conversion zones, be referred to as from down to up ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer.The gasifying agent being made up of air and water vapour, enters in gas generator 1 from furnace bottom fire grate, sails against the current from bottom to up, and be uniformly distributed between each conversion zone, carry out heat exchange and series of chemical, the coal gas producing, discharges from the coal gas efferent duct 5 on body of heater 3 tops.Afterwards, produced lentamente mixed gas.The cinder producing passes through rotation by ash-pan 4 slowly discharges, and when the interior each layer height of body of heater 3 is not enough, by adding new coal, so circulates.
Too high for ensureing that furnace body temperature is difficult for, the soft water obtaining after water purification system is processed enters after moisture trap 18, enter annulated column clevis layer 17, soft water in the time of body of heater 3 excess Temperature in annulated column clevis layer 17 is vaporized into steam, steam is by after moisture trap 18, part steam enters in gas generator as gasifying agent through air blast again, and another part steam is emptying.Wherein, the water inlet of soft water from moisture trap 18 enters in moisture trap 18, and soft water enters in annulated column clevis layer 17 by the first row mouth of a river of moisture trap 18 again, and unnecessary water is discharged from the second row mouth of a river of moisture trap 18; Steam in annulated column clevis layer 17 enters in moisture trap 18 by air inlet, steam is discharged and is entered the first air blast 6 from the first row gas port of moisture trap 18 again, thereby steam enters into gas generator 1 by the first air blast 6 again, some unnecessary steam is discharged from moisture trap 18 by second row gas port.
What produce enters main ash dropping hopper 8 containing grey coal gas through coal gas efferent duct 5, the dust of carrying secretly deposit most of mixed gas in main ash dropping hopper 8 in; Coal gas enters cyclone dust collectors 9 afterwards, and cyclone dust collectors 9 can powerful remove portion dust; Coal gas enters in three grades of ash ash dropping hoppers 10 again, further deposits part ash; Mixed gas passes into the underwater of water filter 24 by air inlet pipe after discharging from ash ash dropping hopper 10, and because air water is insoluble, coal gas enters again in air inlet pipe; Due in gas fired furnace 11 now in negative pressure state, together with the air that coal gas again with the second air blast 13 blasts, enter burning in gas fired furnace 11 and produce clean hot blast, wherein, the effect of the second air blast 13 be herein control gas-fired amount, carry coal gas and oxygen be provided, for combustion-supporting.The hot blast producing enters hot blast general export from hot-blast outlet 12 is discharged, then regulates hot blast temperature by air register 23, and then clay mineral powder is dried.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.

Claims (3)

1. a clay mineral powder body dry-heat air preparation facilities, it is characterized in that: this hot blast preparation facilities has a gas generator (1), this gas generator (1) is mainly by firing machine (2), body of heater (3), ash-pan (4), coal gas efferent duct (5) composition, wherein, body of heater (3) is positioned at the middle part of described gas generator (1), firing machine (2) is positioned at the top of described gas generator (1) and is fixedly connected with body of heater (3), ash-pan (4) is positioned at the bottom of described gas generator (1), coal gas efferent duct (5) is located at body of heater (3) top and is communicated with the furnace chamber of body of heater (3), outer the first air blast (6) and the variable-speed motor (7) of being provided with of described gas generator (1), the first air blast (6) is connected with body of heater (3) bottom by pipeline, variable-speed motor (7) is in transmission connection with described ash-pan (4), and ash-pan (4) is body of heater (3) rotating support relatively, the outer main ash dropping hopper (8) that is also provided with of described gas generator (1), main ash dropping hopper (8) is one to be used for receiving the container of dust stratification dirt, and coal gas efferent duct (5) is communicated with the container of main ash dropping hopper (8), and connectivity part is positioned at the upper position of main ash dropping hopper (8), the next stage of main ash dropping hopper (8) is provided with cyclone dust collectors (9), and cyclone dust collectors (9) have an inlet scoop and an air outlet, and described inlet scoop is communicated with the container of main ash dropping hopper (8) by pipeline, the next stage of cyclone dust collectors (9) is provided with one-level to level Four ash ash dropping hopper (10), every grade of ash ash dropping hopper (10) is made up of a container that is used for receiving cumulative ash, the container of ash ash dropping hoppers at different levels (10) is connected in series successively by pipeline, and the air outlet of cyclone dust collectors (9) is communicated with the container of first order ash ash dropping hopper (10), the next stage of ash ash dropping hopper (10) is provided with one to four gas fired furnace (11), the container of afterbody ash ash dropping hopper (10) is connected with one to four gas fired furnace (11) respectively by pipeline, corresponding gas fired furnace (11) is provided with the second air blast (13), be connected with each gas fired furnace (11) respectively, each gas fired furnace (11) is equipped with a hot-blast outlet (12), and all hot-blast outlets (12) are connected in parallel and are formed hot blast general export by pipeline, the next stage of gas fired furnace (11) is provided with air register (23), this air register (23) mainly by distribution plenum, the first air inlet, the second air inlet, blend air port and air distribution valve forms, hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, air distribution valve is located in distribution plenum, and be positioned at the second air inlet and blend on the passage in air port, to regulate the inlet of extraneous cold wind.
2. clay mineral powder body dry-heat air preparation facilities according to claim 1, it is characterized in that: described main ash dropping hopper (8), cyclone dust collectors (9), the other liquid packing (14) that is equipped with of ash ash dropping hopper (10), this liquid packing (14) is a grooved container, in grooved container, be marked with water, each liquid packing (14) is all connected with the bottom of the container of described main ash dropping hopper (8), cyclone dust collectors (9), ash ash dropping hopper (10) by reaching undersurface pipeline; The other water filter (24) that is provided with of described gas fired furnace (11), this water filter (24) is mainly made up of tank, case, air inlet pipe and escape pipe, wherein, in tank, be marked with water, the upper end of tank is hatch frame, case is the container of a lower ending opening, the opening part of case lower end is inserted into the underwater of tank, air inlet pipe is inserted into water filter (24) from the top of case and extend into below the water surface, and escape pipe is inserted into water filter (24) and more than extending into the water surface from the top of case.
3. clay mineral powder body dry-heat air preparation facilities according to claim 1, it is characterized in that: the body of heater (3) of described gas generator (1) is made up of the inner furnace body coaxially arranging (15) and external furnace body (16), between inner furnace body (15) and external furnace body (16), be formed with annulated column clevis layer (17), described gas generator (1) is outside equipped with moisture trap (18) and water purification system, described water purification system is connected to form by cistern (19), water demineralizer (20), circulating water pool (21), supply-water pump (22) successively, moisture trap (18) is provided with water inlet, the first row mouth of a river, the second row mouth of a river, air inlet, first row gas port and second row gas port, wherein, described water inlet is connected with the supply-water pump (22) of described water purification system by pipeline, the described first row mouth of a river is connected with described annulated column clevis layer (17) by pipeline, the described second row mouth of a river is in communication with the outside, described air inlet is connected with described annulated column clevis layer (17) by pipeline, described first row gas port is connected with described the first air blast (6) by pipeline, described second row gas port is in communication with the outside.
CN201310066713.3A 2013-03-04 2013-03-04 Device for preparing hot air for drying of clay mineral powder Active CN103148696B (en)

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CN104964554A (en) * 2015-06-08 2015-10-07 江苏鸿浩盛世环保设备有限公司 Energy-saving system for drying non-woven drying oven and application method thereof
CN106081524B (en) * 2016-08-09 2019-04-09 中国高岭土有限公司 A kind of automatic drying apparatus of nonmetallic ore molding filter cake
CN106701196A (en) * 2016-11-28 2017-05-24 无锡市莱达热工工程有限公司 Coal gas generating device

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CN200985323Y (en) * 2006-09-11 2007-12-05 四川青江机器股份有限公司 Novel gas generator
CN201901661U (en) * 2010-12-13 2011-07-20 魏占强 Direct-fired type gas producer
WO2012122700A1 (en) * 2011-03-15 2012-09-20 大连理工大学 Two-stage drying and gasification integration device and method of organic substance
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