CN103148696A - 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 PDFInfo
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- CN103148696A CN103148696A CN2013100667133A CN201310066713A CN103148696A CN 103148696 A CN103148696 A CN 103148696A CN 2013100667133 A CN2013100667133 A CN 2013100667133A CN 201310066713 A CN201310066713 A CN 201310066713A CN 103148696 A CN103148696 A CN 103148696A
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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
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, plays an important role in the modern industry development.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 ton of the gross annual output amount of all kinds of clay mineral powders is 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 a kind of of nonmetallic mineral, and the drying of clay mineral mainly contains three kinds of modes: one, adopt traditional manual hot-blast stove to carry out drying; Two, adopt traveling-grate stoker hot-blast stove or the even coal charging type hot-blast stove of reciprocal grate to carry out drying; Three, adopt Coal powder spray formula hot-blast stove to carry out drying.Manual hot-blast stove is to adopt the 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 undemanding thermal source industry.Although the traditional-handwork hot-blast stove is simple in structure, floor space is little, easy to operate, hand firing's temperature is controlled difficulty, and 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.The even coal charging type hot-blast stove of traveling-grate stoker hot-blast stove or reciprocal grate is coal evenly, and 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, the clay mineral product quality become 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 purpose is to solve the problem that the thermal efficiency that existing hot blast preparation facilities exists is low, hot blast temperature is controlled difficulty, hot blast is unholiness, the clay mineral product quality is had considerable influence.
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 mainly is comprised 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 the 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 also is 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 the 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 of a container that is used for receiving the 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 by pipeline and form the hot blast general export; 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 the air port and the air distribution valve forms, the hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, the 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 take coal as raw material, for the device of gas-fired equipment.The solid material coal adds from furnace roof section, moves down with the operation of gas burner, when meeting with the gasifying agent that enters 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, situation when wherein, " ash ash dropping hopper at different levels " refers to that the 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 also is equipped with of ash ash dropping hopper, this liquid packing is a grooved container, be marked with water in the grooved container, each liquid packing all is 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 mainly is comprised of tank, case, air inlet pipe and escape pipe, wherein, be marked with water in tank, 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 and extend into below the water surface from the top of case, and escape pipe is inserted into water filter from the top of case and more than extending into the water surface.
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 the water filter that gas fired furnace connects is to clean to be about to enter the coal gas in gas fired furnace and when preventing that gas pressure is too low or stopping coal gas suddenly, tempering to occur.
4, in such scheme, the body of heater of described gas generator is comprised of inner furnace body and the external furnace body of coaxial setting, 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, use ion exchange technique, exchange by the functional ionic on resin and the calcium in water, magnesium ion, thereby unnecessary calcium, magnesium ion in adsorbed water, reach the purpose 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 the flue gas High Rotation Speed to carry out the inertial separation dedusting.Dust removal mechanism is that dust-contained airflow is rotated, and separates from air-flow and captures in wall by means of centrifugal force depositing dust grain, 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 mainly is made of burner and combustion furnace body of heater, burner is used 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 the 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 mainly is comprised 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.When this hot blast preparation facilities did not have water purification system and moisture trap, gasifying agent was air, and gas generator is air-producer gas generator; When this hot blast preparation facilities was provided with water purification system and moisture trap, gasifying agent was the mist of steam or steam and air, and gas generator is mixed gas producer.Can also be equipped with the coal crane above the firing machine of gas generator, transfer the fuel coal in the firing machine.Take 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 take carbon monoxide and hydrogen as main combustible component.
When air to open processed begins, add slag by firing machine in the bottom of ash-pan, then the fire hole place of middle part one side adds timber for burning on body of heater, add in batches anthracite by firing machine after lighting, and from top to down moves slowly.In igniting time,, the gas generator bottom has the first air blast inwardly to ventilate.Finally, form five conversion zones in body of heater, be referred to as from down to up ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer.Gasifying agent by air and water vapour form enters in gas generator from the 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 that produces is discharged from the coal gas efferent duct of upper of furnace body.Afterwards, produced lentamente mixed gas.The cinder that produces is discharged by rotation is slow by ash-pan, by adding new coal, so circulates when in body of heater, each layer height is not enough.
When this hot blast preparation facilities did not have water purification system and moisture trap, for guaranteeing the too high infringement body of heater of furnace body temperature, the body of heater surfacing adopted refractory material, for example refractory brick; When this hot blast preparation facilities is provided with water purification system and moisture trap, too high for guaranteeing that furnace body temperature is difficult for, after the soft water that obtains after processing through water purification system enters moisture trap, enter annulated column clevis layer, soft water when 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.
When gas processed, the operation principle of gas generator is: the program according to gasification in gas generator is carried out, producer inside roughly can be divided into five conversion zones, and be respectively from down to up:
(1) ash bed
Be in fire grate top, through the formed ash bed of combustion reaction, after carrying out heat exchange by the gasifying agent that advances with drum, temperature descends to some extent, can protect fire grate that it is not burned, and again gasifying agent is played 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, usually can reach 1100 ~ 1200 ℃.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.In this layer bottom, the air-flow that is mixed by newly-generated CO2 and steam and N2 upwards flows with the speed of 3 ~ 6m/s, the scorching hot charcoal material haptoreaction that moves down with speed with 10 ~ 40cm/s simultaneously.This moment, CO2 was reduced into CO, also had 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 has the function of adjusting furnace temperature, protection fire grate.Gas by reducing zone has CO, CO2, H2, CH4 and the steam that has not been decomposed and nitrogen.Oxide layer and reducing zone are referred to as gasification layer.
Coal gas by oxide layer and reducing zone generate 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 the destructive distillation layer, for the low temperature distillation of coal provides thermal source.
(4) destructive distillation layer
The Gas Flow that rises by gasification layer enters the destructive distillation layer.The destructive distillation layer is to have the reaction section of characteristic with the retort section gas burner.Enter the heat-carrying gas in the destructive distillation layer, temperature is about below 700 ℃.Basically 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 and vaporific tar are drawn from the top exit of gas burner together with the poor gas that gasification section produces.After moving down into gasification section, the semicoke that generates reduces and oxidation reaction.
(5) the drying layer drying layer is positioned at above the destructive distillation layer, that is to say the surface layer of fuel, is mainly the steeping in water for reconstitution in coal is evaporated.
The mixed gas that produces enters main ash dropping hopper through the coal gas efferent duct, the dust of carrying secretly in the most of mixed gas of deposition 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 the part ash; Because be in negative pressure state in gas fired furnace this moment, coal gas burning in entering gas fired furnace together through the air that blasts with the second air blast after purifying and dedusting produces clean hot blast, and wherein, the effect of the second air blast herein is to control the 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 that produces is high, and heat utilization efficiency reaches more than 80%; The hot blast temperature that produces is controlled, and dry rear clay mineral product moisture is all below 1%; Hot blast is clean, thereby the quality of clay mineral powder is not exerted an influence, and the clay mineral whiteness is unchanged in dry front and back.
Description of 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;
Accompanying drawing 5 is the technique course diagram of 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.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
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 mainly is comprised 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 comprised of inner furnace body 15 and the external furnace body 16 of coaxial setting, 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 outer to be provided with the first air blast 6 and variable-speed motor 7, the first air blasts 6 and to be connected with body of heater 3 bottoms by pipeline, and variable-speed motor 7 and described ash-pan 4 are in transmission connection, relative body of heater 3 rotating supports of ash-pan 4; Gas generator 1 also has a coal crane above firing machine 2, transfer the fuel coal in the 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 also is 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 by the container of pipeline with main ash dropping hopper 8; 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 of a container that is used for receiving the 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 by pipeline and form the hot blast general export; 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 the air port and the air distribution valve forms, the hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, the 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, be marked with water in the grooved container, each liquid packing 14 all is 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 mainly is comprised of tank, case, air inlet pipe and the pipe of going out, wherein, be marked with water in tank, 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 and extend into below the water surface from the top of case, escape pipe is inserted into water filter 24 from the top of case and more than extending into the water surface, shown in accompanying drawing 4.
The duty of the present embodiment and principle are: the technological process of the present embodiment is referring to shown in accompanying drawing 5, take stone coal or bituminous coal etc. as raw material, mist with steam or steam and air is made gasifying agent, produces the gasification gas take carbon monoxide and hydrogen as main combustible component.When air to open processed begins, add slag by firing machine 2 in the bottom of ash-pan 4, then the fire hole place of middle part one side adds timber for burning on body of heater 3, add in batches anthracite by firing machine 2 after lighting, and from top to down moves slowly.In igniting time,, gas generator 1 bottom has the first air blast 6 inwardly to ventilate.Finally, form five conversion zones in body of heater 3, be referred to as from down to up ash bed, oxide layer, reducing zone, destructive distillation layer, drying layer.Gasifying agent by air and water vapour form enters in gas generator 1 from the 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 that produces is from coal gas efferent duct 5 discharges on body of heater 3 tops.Afterwards, produced lentamente mixed gas.The cinder that produces is discharged by rotation is slow by ash-pan 4, by adding new coal, so circulates when in body of heater 3, each layer height is not enough.
Too high for guaranteeing that furnace body temperature is difficult for, after the soft water that obtains after processing through water purification system enters moisture trap 18, enter annulated column clevis layer 17, soft water when 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 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 from the first row gas port of moisture trap 18 and is entered the first air blast 6, thereby steam enters into gas generator 1 by the first air blast 6 again, and some unnecessary steam is discharged from moisture trap 18 by the second row gas port.
The grey coal gas that contains that produces enters main ash dropping hopper 8 through coal gas efferent duct 5, the dust of carrying secretly in the most of mixed gas of deposition in main ash dropping hopper 8; 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 the part ash; Passed into the underwater of water filter 24 after mixed gas is discharged from ash ash dropping hopper 10 by air inlet pipe, because air water is insoluble, coal gas enters again in air inlet pipe; Because be in negative pressure state in gas fired furnace 11 this moment, the air that coal gas again with the second air blast 13 blasts enters the clean hot blast of burning generation in gas fired furnace 11 together, wherein, herein the effect of the second air blast 13 be control the gas-fired amount, carry coal gas and oxygen be provided, be used for combustion-supporting.The hot blast that produces enters the hot blast general export after hot-blast outlet 12 is discharged, then regulates hot blast temperature by air register 23, and then the clay mineral powder is carried out drying.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow person skilled in the art scholar can understand content of the present invention and implement according to this, can not limit protection scope of the present 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. 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) forms, 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 also is provided with of described gas generator (1), main ash dropping hopper (8) are 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 by the container of pipeline with main ash dropping hopper (8), 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 of a container that is used for receiving the 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 by pipeline and form the hot blast general export, 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 the air port and the air distribution valve forms, the hot blast general export is connected with the first air inlet, the second air inlet is in communication with the outside, the 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, be marked with water in the grooved container, each liquid packing (14) all is 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) mainly is comprised of tank, case, air inlet pipe and the pipe of going out, wherein, be marked with water in tank, 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) and extend into below the water surface from the top of case, and escape pipe is inserted into water filter (24) from the top of case and more than extending into the water surface.
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 comprised of inner furnace body (15) and the external furnace body (16) of coaxial setting, is formed with annulated column clevis layer (17) between inner furnace body (15) and external furnace body (16), 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.
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| CN106081524A (en) * | 2016-08-09 | 2016-11-09 | 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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| CN103148696B (en) | 2014-08-20 |
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