CN102674652B - Circular waste gas crushing and drying equipment - Google Patents
Circular waste gas crushing and drying equipment Download PDFInfo
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- CN102674652B CN102674652B CN201210127363.2A CN201210127363A CN102674652B CN 102674652 B CN102674652 B CN 102674652B CN 201210127363 A CN201210127363 A CN 201210127363A CN 102674652 B CN102674652 B CN 102674652B
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- 238000001816 cooling Methods 0.000 claims abstract description 68
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 239000000498 cooling water Substances 0.000 claims abstract description 18
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- Drying Of Solid Materials (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention disclose circular waste gas crushing and drying equipment which comprises a preheating tank, a drying tank, a material cooling tank, a wastewater treatment device, a waste gas treatment device, a heat collecting device, a boiler heating system and a cooling water supply system. The circular waste gas crushing and drying equipment has the beneficial effects that in a working manner that three steps, i.e. intermittent preheating, drying and cooling are combined, waste heat tail gas with the temperature exhausted by a boiler is introduced into a working cavity of the drying tank, and generated waste heat steam is introduced into the former process of preheating tank through an induced draft fan in the drying process after being treated; the preheating tank is the preheating tank as for materials to be dried and is a cooler as for waste heat gas; after being transferred to the dried materials, heat is reduced into water and waste gas, so that the effect of supplying waste heat generated in the drying tank for the materials that are to be dried and are still positioned at a normal temperature for preheating is realized; and while the preheating tank is used as the cooler, a large quantity of water for cooling can also be saved.
Description
Technical field
The present invention relates to a kind of broken drying plant, particularly the broken drying plant of a kind of waste gas circulation.
Background technology
Sludge structure is complicated, the combination that the zoogloea being formed by multiple-microorganism and the organism of its absorption and inorganics form.Containing a large amount of moisture, pathogenic micro-organism and parasite etc., is that common equipment of crop drying is difficult to dry product under short period of time, end cost, free of contamination running status.
Although city domestic sewage and the pollution of trade effluent to environment have effectively been alleviated in sewage disposal,, the fittings-mud producing after sewage disposal still produces secondary pollution to environment.In mud, contain outside nutritive elements such as enriching nitrogen, phosphorus, potassium, also contain a large amount of pathogenic bacterias, parasite (ovum), hazardous and noxious substances and the gas of the difficult degradations such as the heavy metals such as copper, zinc, chromium, mercury, salt and polychlorobiphenyl, dioxin, if sludge disposal is improper, these materials all may cause larger harm to environment and the mankind and animal health.
Water in mud is because being wrapped up by cell, be at normal temperatures cannot be released therefore cause a large amount of mud of China to process, heat drying processing cost is before high.The at present domestic research to sludge disposal equipment is many, but that real handy sludge disposal technology and equipment only have is several, and import equipment is expensive.How rationally to dispose municipal sludge and become the hang-up that China need solve.
Summary of the invention
The object of the invention is to overcome existing is the weak point of municipal sludge dry technology to solid waste rubbish, and provide a kind of moisture percentage in sewage sludge of can arbitrarily controlling, processing cost and treatment time greatly reduce, there is no secondary pollution, turn waste into wealth, for the regeneration of mud, created condition, can be government and save a large amount of landfill soils,, the broken drying plant of the significant waste gas circulation of ecological environment benefit and social benefit.
A broken drying plant, its structural feature is: include preheating can, drying chamber, material cooling tank, wastewater treatment equipment, emission-control equipment, heat collector, boiler heating system and cooling water system;
Described preheating can includes tool housing with dissection, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the opening for feed of preheating can is carried and is connected mutually with feeding unit, the discharge port of preheating can is carried and is connected mutually with the opening for feed of drying chamber, the interlayer of the housing of described preheating can or the waste steam producing with miscellaneous equipment in the broken drying plant of waste gas circulation are connected, or be connected with the heat-pump hot-water in heat collector, or the while is connected with waste steam and heat-pump hot-water is connected, described hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler heating system, the waste gas of described preheating and drying tank leads to cooling water system condensing device, the waste water of preheating and drying tank leads to wastewater treatment equipment, the used heat of preheating and drying tank leads to heat collector,
Described drying chamber includes tool housing with dissection and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the discharge port of drying chamber leads to material cooling tank, the crustless sandwich of described drying chamber, hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler systems, the waste steam that drying chamber produces is led to preheating can, and the used heat tail gas that boiler heating system produces is introduced the working chamber of drying chamber;
Described material cooling tank opening for feed is connected with the discharge port of drying chamber, described material cooling tank comprises with housing with dissection, is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the spiral conveyor formation of following hollow rotating shaft rotation on hollow rotating shaft, housing inner chamber is connected with cooling water system respectively with hollow rotating shaft, the waste steam that material cooling tank produces is led to preheating can, delivers to preheating can preheating can is heated after the heat pump lifting temperature of the water coolant of material cooling tank by heat collector;
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, after emission-control equipment mixes with fresh air, introduces boiler heating system as combustion gases.
The broken drying plant of waste gas circulation of the present invention is disposable the completing from being warmed up to dry traditional drying method in a drying chamber of existing dry technology, is decomposed into the intermittently drying mode of preheating, dry and cooling three steps.Thereby make the waste heat of the waste heat gas that produces in each step can realize recycle, when contacting concurrent heating with the thing that is dried, the work inner chamber that the used heat tail gas of boiler heating system discharge is sent into drying chamber takes away moisture in drying chamber, the waste hot steam of the high-moisture percentage producing during the work of drying chamber, material cooling tank send timely circulation to the crustless sandwich in preheating can with to heating in preheating can, the waste hot steam after cooling (also having 45 degree left and right) offers boiler again and uses as combustion air after purifying treatment after mixing fresh air.The benefit of hot waste gas recycle is: a provides supplementing of the interior heat of drying chamber, b takes away the high-moisture percentage waste gas in a large amount of drying chambers, c is to thermal source is cheaply provided in preheating can, d improves the inlet air temperature of boiler combustion gas, e has utilized boiler combustion waste gas, f has reduced boiler heat supplying running cost, has realized high efficiency intermittently drying mode and the ultralow running cost of heat drying equipment.
On described preheating can, be provided with and be communicated with hollow rotating shaft or/and the condensation-water drain of cored screw conveying belt, this condensation-water drain is communicated with condensation water tank, and condensation water tank is connected with the waterworks of the boiler of boiler heating system again.Thereby the water source that water of condensation that high temperature saturation steam forms after drying process heat release cooling is all reclaimed as the production saturation steam of boiler is that soft water is used.
Described drying chamber be provided be communicated with crustless sandwich or/and hollow rotating shaft or/and the condensation-water drain of cored screw conveying belt, this condensation-water drain is communicated with condensation water tank, condensation water tank is connected with the boiler of boiler heating system again, thereby the water source that water of condensation that high temperature saturation steam forms after drying process heat release cooling is all reclaimed as the production saturation steam of boiler is that soft water is used.
The waste steam that drying chamber and material cooling tank produce is led to preheating can and on the passage between preheating can, is provided with induced draft fan and draws for leading at drying chamber and material cooling tank.
The waste steam that drying chamber and material cooling tank produce is provided with material steam separator so that the bits dust comprising in waste steam is filtered on the passage before induced draft fan of preheating can.
Emission-control equipment is provided with induced draft fan on the passage of the boiler of boiler heating system.
On the passage between drying chamber and material cooling tank, be provided with sizing screen, an outlet of sizing screen is communicated with the opening for feed of material cooling tank, and another outlet of sizing screen is communicated with the opening for feed of drying chamber.
Between drying chamber and material cooling tank, add sizing screen is set, just can carry out classification to dried mud, mud is divided into qualified and underproof product, and qualified mud enters in tank through the opening for feed of material cooling tank, and underproof product is sent into drying chamber and is again dried.
At drying chamber inwall, be provided with more than one broken knife section and the fixed blade rotating.
At drying chamber inwall, this knife section and fixed blade are set, when spiral conveyor is followed hollow rotating shaft rotation, block mud will be thrown on tank skin and along tank skin and do turning motion, the block mud moving along tank skin fixing fixed blade when taking exercises and on tank skin forms corner cut, block mud can be cut open after touching fixed blade, for moisture in sludge bulking can be contacted fast become water vapour after tank skin, be released, will allow mud become thinner powder contacts with tank skin, at this moment starting knife section makes it do high speed rotating mud is cut to powder by it, contacts fast with tank skin.
On the drying chamber inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap.Described block is symmetric offset spread, and the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
On the discharge port of drying chamber, be provided with shifting board.
Described shifting board is driven by propulsion sources such as pneumatically operated switch or motors, and rotatable 90
oc is fixed on the discharge port place of spiral conveyor over top, between baffle plate bottom and conveying belt top, has certain gap, plate washer plane and the drying chamber wall shape that becomes to be arranged in parallel during not discharging, and during discharging, baffle plane becomes 90 with dry tank skin
oc, takes advantage of the wide 3cm of being not less than * 20 cm with the length of the contact surface of material.
The spiral conveyor that comprises one or more in described drying chamber, described spiral conveyor is screw lifting band, the opening for feed of drying chamber and discharge port are all arranged at the top of drying chamber, screw lifting band extends to the lower end of discharge port from the bottom of drying chamber, the gap of the bottom of screw lifting band and drying chamber bottom is more than or equal to 0.5 cm, and the width of hurricane band is more than or equal to 3 cm.
On described screw lifting band, have opening, openings of sizes can be by broken knife section and the fixed blade of rotatablely moving, during work and the broken knife section rotating on dry tank skin and fixed blade do tangent motion.
The block mud being entered by drying chamber opening for feed, the mud of the fine particulate becoming after drying break process in drying chamber is discharged by discharge port.
On the preheating can inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap.Described block symmetric offset spread, the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
On the discharge port of preheating can, be provided with shifting board.This block is driven by propulsion sources such as pneumatically operated switch or motors, and rotatable 90
othe top of being fixed on spiral conveyor top otch of C, baffle plate lower curtate and conveying belt top otch have a free movable gap, and during not discharging, shelves are fast parallel with preheating tank skin, during discharging, become 90 with dry tank skin
oc angle.
The spiral conveyor that comprises one or more in described preheating can, described spiral conveyor is screw lifting band, and the opening for feed of preheating can is arranged at the below of preheating can, and the discharge port of preheating can is arranged at the top of drying chamber.
On the material cooling tank inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap, described block is symmetric offset spread, and the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
On the discharge port of the cool but tank of material, be provided with discharger.
Described discharger is controlled by various propulsion sources such as motor or pneumatically operated switchs.
The spiral conveyor that comprises one or more in the cold tank of described material, described spiral conveyor is screw lifting band, and the opening for feed of material cooling tank is arranged at the top of material cooling tank, and the discharge port of material cooling tank is arranged at the below of the cool but tank of material.
Between preheating can and drying chamber, adopt the shaftless feed appliance of spiral to carry out feeding/charging between drying chamber and classification general.
The broken drying plant of described waste gas circulation also includes sludge storage feed bin, and described sludge storage feed bin is connected with the feeder with function of measuring by helical screw feeder, between feeder and preheating can, by helical screw feeder, carries out feeding.
In sum, the present invention's following advantage compared to existing technology:
Well-known: water is flowing fluid at normal temperatures, along with the rising of temperature has just become water vapour, can be melted in air and be taken away by air-flow, air under the condition of high temperature can be used as heating agent transfer of heat is carried out to heat conversion to medium, warm air after exchange is along with the reduction recurrence of temperature is reduced to again water for normal temperature, and the air of low-water-content can be used as transport agent, the air of high-moisture percentage is taken away, the broken drying plant of waste gas circulation of the present invention is exactly to have utilized this physical phenomenon by preheating intermittently, dry, the mode of operation of cooling three steps combination, in the used heat tail gas with temperature of boiler emission being passed into after the waste hot steam producing being processed in the inherent drying process of working chamber of drying chamber and introducing in the preheating can of front operation by induced draft fan, in preheating can, to being about to dry material, be in preheating can, concerning waste heat gas, it is exactly water cooler, by cooling after heat being passed to dry thing, be reduced to water and waste gas, the used heat supply that has so just realized the interior generation of self drying chamber will be dried the also material under normal temperature and preheat, being used as in preheating can when water cooler uses, can also save a large amount of cooling waters, useless pick up the heat has been realized the heat drying mode of Ultra Low Cost, also changed throughout the year and the north and south temperature difference time unequal phenomenon of the dry operation work of equipment for the moment not.
Dry workflow of the present invention: the mud of the high-moisture percentage city domestic sewage treatment plant by storage bin more than 80%, by handling machinery, mud is sent into automatic gauge feeder, after metering, send into after the interior preheating of preheating can, the mud of high viscosity is transferred in dry broken tank, in drying chamber, be constantly raised and fragmentation, because the dry thing of centrifugal principle can contact fast the heating direct that absorbs heat to mud membranolysis with hot wall when rotating and upgrading, at this moment being wrapped in cellular water in mud is discharged become free-water completely, become water vapour after contacting with high temperature hot wall after, by vacuum fan, extracted out drying chamber, dried product is graded and is sieved into finished product up to standard and underproof substandard products, finished product is transferred to and in material cooling tank, carries out cooling packing and be drying products, the inner chamber that underproof substandard products are admitted in drying chamber with the classified sieve discharge port of material returning device e is again dry with new dry thing.
Used heat circulation process: the material of high-moisture percentage can produce in the process of heat drying that a large amount of waste hot gas and spent hot water are whole is in the present invention recovered utilization.The saturation steam that the saturation steam that mummification heat source boiler is produced is sent to respectively drying chamber is heated in interlayer and preheating can, heat in the tubular shaft heating chamber of drying chamber and screw lifting blade heating chamber and form high temperature hot wall, the work inner chamber of the used heat tail gas of boiler emission being sent into drying chamber directly contacts with the thing that is dried, in supplementing drying chamber, in heat, taken away the moisture in drying chamber (being high-temp waste gas), this waste gas uses induced draft fan through material steam separator, used heat is introduced in the waste gas heating jacket in preheating can, as the thermal source in preheating can, used.
The spent hot water with temperature who produces by dry, preheating, when cooling is recovered in heat collector, while utilizing heat pump that waste water is elevated to working temperature, introduce in the hot water heating courage in preheating can to heating in preheating can, as the another kind of supplying heat source use in preheating can.Thermal wastewater after utilization discharges after being admitted to biochemical treatment tank processing up to standard, hot waste gas body after utilization is first admitted to combustion chamber dedusting safety up to standard after high-temp combustion purifies that the air inlet that is just admitted to heating boiler after emission-control equipment is mixed in proportion with fresh air after purifying treatment enters boiler D and enters atmosphere, and the water source that the water of condensation that the high temperature saturation steam in drying process forms after drying process heat release cooling is all reclaimed as the production saturation steam of boiler is that soft water is used.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the broken drying plant of waste gas circulation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A broken drying plant, includes preheating can, drying chamber, material cooling tank, wastewater treatment equipment, emission-control equipment, heat collector, boiler heating system and cooling water system;
Described preheating can includes tool housing with dissection, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the opening for feed of preheating can is carried and is connected mutually with feeding unit, the discharge port of preheating can is carried and is connected mutually with the opening for feed of drying chamber, the interlayer of the housing of described preheating can or the waste steam producing with miscellaneous equipment in the broken drying plant of waste gas circulation are connected, or be connected with the heat-pump hot-water in heat collector, or the while is connected with waste steam and heat-pump hot-water is connected, described hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler heating system, the waste gas of described preheating and drying tank leads to cooling water system condensing device, the waste water of preheating and drying tank leads to wastewater treatment equipment, the used heat of preheating and drying tank leads to heat collector, on described preheating can, be provided with and be communicated with the hollow condensation-water drain turning with cored screw conveying belt, this condensation-water drain is communicated with condensation water tank, and condensation water tank is connected with the boiler of boiler heating system again.On preheating can inwall, be provided with for changing the material block of direction of motion within it.On the discharge port of preheating can, be provided with shifting board.The spiral conveyor that comprises one or more in described preheating can, described spiral conveyor is screw lifting band, and the opening for feed of preheating can is arranged at the below of preheating can, and the discharge port of preheating can is arranged at the top of drying chamber.
Described drying chamber includes tool housing with dissection and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the discharge port of drying chamber leads to material cooling tank, the crustless sandwich of described drying chamber, hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler systems, the waste steam that drying chamber produces is led to preheating can, and the used heat tail gas that boiler heating system produces is introduced the working chamber of drying chamber; Described drying chamber is provided with the condensation-water drain that is communicated with crustless sandwich and hollow rotating shaft and cored screw conveying belt, and this condensation-water drain is communicated with condensation water tank, and condensation water tank is connected with the boiler of boiler heating system again.On drying chamber inwall, be provided with for changing the material block of direction of motion within it.On the discharge port of drying chamber, be provided with shifting board.The spiral conveyor that comprises one or more in described drying chamber, described spiral conveyor is screw lifting band, the opening for feed of drying chamber and discharge port are all arranged at the top of drying chamber.
Described material cooling tank opening for feed is connected with the discharge port of drying chamber, described material cooling tank comprises with housing with dissection, is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the spiral conveyor formation of following hollow rotating shaft rotation on hollow rotating shaft, housing inner chamber is connected with cooling water system respectively with hollow rotating shaft, the waste steam that material cooling tank produces is led to preheating can, delivers to preheating can preheating can is heated after the heat pump lifting temperature of the water coolant of material cooling tank by heat collector; On material cooling tank inwall, be provided with for changing the material block of direction of motion within it.On the discharge port of the cool but tank of material, be provided with discharger.The spiral conveyor that comprises one or more in the cold tank of described material, described spiral conveyor is screw lifting band, and the opening for feed of material cooling tank is arranged at the top of material cooling tank, and the discharge port of material cooling tank is arranged at the below of the cool but tank of material.
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, after emission-control equipment mixes with fresh air, introduces boiler heating system as combustion gases.
The waste steam that drying chamber and material cooling tank produce is led to preheating can and on the passage between preheating can, is provided with induced draft fan and draws for leading at drying chamber and material cooling tank.
The waste steam that drying chamber and material cooling tank produce is provided with material steam separator K1 so that the dust being full of in waste steam is filtered on the passage before induced draft fan of preheating can.
Emission-control equipment is provided with induced draft fan on the passage of the boiler of boiler heating system.
On the passage between drying chamber and material cooling tank, be provided with sizing screen, an outlet of sizing screen is communicated with the opening for feed of material cooling tank, and another outlet of sizing screen F1 is communicated with the coarse fodder import of drying chamber.
At drying chamber inwall, be provided with more than one broken knife section and the fixed blade rotating.
The broken drying plant of described waste gas circulation also includes sludge storage feed bin H1, and described sludge storage feed bin is connected with the feeder J1 with function of measuring by helical screw feeder, between feeder and preheating can, by helical screw feeder, carries out feeding.
The broken drying plant concrete structure of described waste gas circulation is as follows:
Preheating can A has the heat vertical tank body of circular metal of interlayer of two thermals source by one with waste gas thermal source a and a heat-pump hot-water thermal source, inner tank wall 1 is used in order to heat is passed to the thing preheating that is dried, it is by an opening for feed 4 connecting with the hollow shaftless feeding screw 12a of electric motor 14, one or several are connecting the discharge port 5 with the hollow shaftless spiral discharging device 12b of electric motor 15, the used heat inlet mouth 3 of one or several cost frees, one or several imports of heat-pump hot-water heat supply cheaply, one or several heat-pump hot-water water outlets, one or several exhaust vent 7 and a1, one or several wastewater outlets 8, a connection motor 16a is fixed on the hollow rotating shaft 9 at the upper and lower two ends of tank body, rotating shaft has the cored screw elevator belt 10 of continuity rising material ability by supporting some of 6 connections, one or several connect the activity discharge baffle 11 of motor (or pneumatically operated switch) 12, one or several can change the compositions such as fixedly link stopper 13a of material direct of travel on tank body A inwall 1.
The composition of drying chamber:
Drying chamber B be one with F1 high temperature saturation steam source chuck heat layer 17, the circular vertical tank body of metal, inner tank wall 16 is in order to pass to heat the thing that is dried, it is by an opening for feed 18 connecting with the hollow shaftless feeding screw 12b of electric motor 15, one or several are connecting the discharge port 19 with the hollow shaftless spiral discharging device 12c of electric motor 21, one or several saturation steams F1 inlet mouth 22, one or several exhaust vents 23, one or several condensation-water drains 24, connection motor 16b is the hollow rotating shaft 26 at the upper and lower two ends of tank body B fixedly, in rotating shaft, being connected with some strip openings has again the cored screw elevator belt 27 of continuity rising material ability, drying chamber inwall up and down each layer is fixed with the broken knife section 28 of several rotations that driven by motor 20 and several fixed blades 29, one or several are fixed on the fixedly link stopper 13b that can change material direct of travel in inner tank wall, one or several waste heat inlet mouths 30, one or several connect activity discharge baffle 31 compositions such as grade of motor 21.
Material cooling tank
cbe one with cooling water source chuck layer 33 cooling layer, the circular vertical tank body of metal, inner tank wall 32 use cryogenic medias transmit heat exchange and reduce dry finished product temperature of charge, it is by an opening for feed 35 connecting with the thin discharge port f of the sizing screen 34 of electric motor, 38 1 cooling water outlets 39 of an entrance of cooling water, connection motor 40 is the hollow rotating shaft 41 at the upper and lower two ends of tank body C fixedly, in rotating shaft, by 10c, be connected with the some screw lifting bands 42 that have continuity rising material ability, one or several are connecting the discharge port 37 with electric motor discharger 36, one or several are fixed on the fixedly link stopper 13c that can change material direct of travel in inner tank wall.
Workflow of the present invention:
First with the saturation steam that the boiler D of boiler heating system produces, send to air collecting cylinder F, F1 enters in the interlayer 17 of heating of drying chamber B by the inlet mouth 22 of drying chamber B, F2 enters tubular shaft heating chamber 26 and promotes 6b in blade heating chamber and heats, F3 enters in the hollow rotating shaft 9 of preheating can A and other need the position of preheating to carry out tank body preheating, the work inner chamber of the used heat tail gas of boiler D discharge being sent into drying chamber B contacts with the thing that is dried, in the time of concurrent heating, take away the moisture in drying chamber B, the waste gas that drying chamber B is produced is through material steam separator, with induced draft fan, used heat is introduced in the waste gas heat supply interlayer of preheating can A by inlet mouth 3, in the hot water heating chuck of the high-temperature-hot-water introducing preheating can A simultaneously heat pump being produced, the tank skin 1 of preheating can A is heated, allow the inwall metallic surface of preheating can form high temperature hot wall.Preheating can A starts mud forwarder the mud in sludge storage feed bin is sent into the weight metering that automatic gauge feeder carries out dried material while reaching working temperature, reach measurement standard after starter motor 14 utilize shaftless helical screw feeder 12a mud to be sent into the bottom of preheating can through opening for feed 4.The electric motor 16a that starts preheating can A drives through supporting 6 and is connected with the some screw lifting bands 10 with continuity rising material ability and runs up, mud under the lifting force of hurricane band 10 and the effect of centrifugal force, constantly prolong tank skin be thus lifted to preheating can above, after colliding with block 13a, change running orbit, leaving preheating tank skin 1 falls after rise to the bottom of preheating can A, the circumferential motion of constantly doing 360 degree along tank skin 1 because of the effect meeting of centrifugal force in the process that mud rises through ribbon 10 progressively rises, through frequently contacting fast with heated wall, heat absorption, mud gradually heating direct extremely promotes while reaching preset temperature, actuating motor 12 is by shifting board 11 90-degree rotations, allow the baffle-panels of the active catch scraper plate an angle of 90 degrees vertical with promoting spiralization, the mud that lifting hurricane band circumferential running at a high speed has high viscosity is constantly raised up and rests on baffle plate, under the effect of centrifugal force, mud can be stacked on above the discharge port 5 of baffle plate and preheating can, at this moment opening discharge port 5 mud will enter in helical screw feeder 12b automatically, at this moment by preheated mud, the opening for feed 18 by shaftless spiral 12b drying tank is transferred to and in drying chamber, enters drying program actuating motor 15.
The opening for feed 18 that is transferred to mud drying tank B under the effect of gravity of drying chamber top falls into the bottom of drying chamber, the electric motor 16b of startup drying chamber B drives the running that continues screw lifting band 27 high speeds of rising material abilities through supporting some bands of 6b connection, mud can be constantly under the effect of the lifting force of hurricane band 27 and under the effect of centrifugal force along can constantly be thus lifted to when the tank inwall 16 of drying chamber B be done the circumferential motion of 360 degree drying chamber B above, after colliding with block 13b, change running orbit, leaving dry tank skin 16 falls after rise to the bottom of drying chamber B, mud is such rolling up and down repeatedly in tank, motion contacts fast and frequently repeatedly with the hot wall 16 of drying chamber B, heat absorption, the mud of high-moisture percentage will produce a large amount of water vapour, at this moment starting induced draft fan extracts fast water vapour out drying chamber B and allows mud reduce moisture fast and be dried, mud is in quick heat absorption, heat up, in dry process, can form along with the continuous decline of water ratio elastic granule and the fast shape of elasticity of parcel water, block mud contains a large amount of water.Block mud when the inwall 16 along drying chamber B is done the circumferential motion of 360 degree with tank skin on fixing several blades 29 can form corner cuts, block mud can be cut open after touching blade, for the moisture of mud in fast can be contacted fast become water vapour after tank skin, be released, will allow mud become thinner powder and contact with tank skin 16, at this moment starter motor 20 allows blade 28 high speed rotating that are fixed on motor upper end that mud is cut to powder to contact with tank skin 16 fast by it.Water vapour in dry process in chuck can form the water of condensation with temperature because of heat release, and the water inlet equipment that can be connected to boiler by condensed water collecting box is by boiler cycling and reutilization.Drying chamber B produces a large amount of waste water steams and is extracted out by the air outlet 23 of drying chamber B by induced draft fan, because of containing a large amount of heat and part dust, after glassware separator separation dust, be preheated tank A as preheating for hot gas.Promote hurricane band circumferential running at a high speed and constantly have the upper end that dried mud is constantly thus lifted to drying chamber, actuating motor 21 is by shifting board 31 90-degree rotations, allow active catch and lifting ribbon form the baffle-panels of vertical an angle of 90 degrees, opening the dried mud of discharge port 19 will automatically enter in feed appliance 12C under the effect of centrifugal force, actuating motor 21 is transplanted on classified sieve in sizing screen by dried mud dried mud is divided into salable product and unacceptable product, qualified mud enters in tank through the opening for feed 35 of cooling tank C, defective and with the mud of temperature, again enter preheating can to sneak into new mud again dry.
By a cooling water system G, allow water coolant enter from cold water interlayer water outlet 39 out through the cold water interlayer import 38 of cooling tank C, allow cooling tank C inwall 32 form low temperature wall, electric motor 40 drives that start cooling tank C are connected with some the screw lifting band 10c with continuity rising material ability through support 6c and run up, dried mud under the lifting force of hurricane band 10c and the effect of centrifugal force, be constantly thus lifted to cooling tank above, after colliding with block 13c, change running orbit, leave cooling tank skin 32 and fall the bottom to tank after rise, mud can constantly be done the circumferential motion of 360 degree under because of the effect of centrifugal force in the process that ribbon 10c rises along tank skin 32, through frequently contacting fast up and down heat release with low temperature wall, mud rapidly cooling is opened discharge valve quilt until start starting switch 36 while reaching preset temperature,
In preheating, during heat exchange in dry and process of cooling, all can produce a large amount of waste water and waste gas, waste water can be discharged to through the water port 8 of preheating can in the treating pond H of wastewater treatment equipment and carry out biopurification processing, the waste gas producing is through the venting port 7 of preheating can, a1 enters condenser E and after condensation, forms waste water and waste gas, waste water enters waste water purification tank H, waste gas through emission-control equipment by the air mixer of induced draft fan suction boiler in air mixed after as the combustion gases of boiler, enter high-temp combustions more than combustion chamber 800 degree of boiler, waste gas through processing like this just can not produce Dioxins, after udst separation processing is up to standard, be discharged in atmosphere.The tail gas waste heat that boiler produces is introduced moisture trap by induced draft fan and after dehumidifying, is introduced and in drying chamber B, become the heat supplement of being taken away when drying chamber B takes water vapour away because of vacuum fan, and another part without the used heat tail gas of utility value, by sack cleaner and air cleaning tower, process after safe qualified discharge to atmosphere.
It is same as the prior art that the present embodiment is not stated part.
Claims (18)
1. the broken drying plant of waste gas circulation, is characterized in that: include preheating can, drying chamber, material cooling tank, wastewater treatment equipment, emission-control equipment, heat collector, boiler heating system and cooling water system;
Described preheating can includes tool housing with dissection, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the opening for feed of preheating can is carried and is connected mutually with feeding unit, the discharge port of preheating can is carried and is connected mutually with the opening for feed of drying chamber, the interlayer of the housing of described preheating can or the waste steam producing with miscellaneous equipment in the broken drying plant of waste gas circulation are connected, or be connected with the heat-pump hot-water in heat collector, or the while is connected with waste steam and heat-pump hot-water is connected, described hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler heating system, the waste gas of described preheating can leads to cooling water system condensing device, the waste water of preheating can leads to wastewater treatment equipment, the used heat of preheating can leads to heat collector,
Described drying chamber includes tool housing with dissection and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the cored screw conveying belt formation of following hollow rotating shaft rotation on hollow rotating shaft, the discharge port of drying chamber leads to material cooling tank, the crustless sandwich of described drying chamber, hollow rotating shaft and cored screw conveying belt are connected with the collection cylinder of boiler systems, the waste steam that drying chamber produces is led to preheating can, and the used heat tail gas that boiler heating system produces is introduced the working chamber of drying chamber;
Described material cooling tank opening for feed is connected with the discharge port of drying chamber, described material cooling tank comprises with housing with dissection, is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on the spiral conveyor formation of following hollow rotating shaft rotation on hollow rotating shaft, crustless sandwich is connected with cooling water system respectively with hollow rotating shaft, the waste steam that material cooling tank produces is led to preheating can, delivers to preheating can preheating can is heated after the heat pump lifting temperature of the water coolant of material cooling tank by heat collector;
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, and the treated device of waste gas mixes and is introduced into boiler combustion system as combustion gases with fresh air after processing.
2. the broken drying plant of waste gas circulation according to claim 1, it is characterized in that: on described preheating can, be provided with and be communicated with hollow rotating shaft or/and the condensation-water drain of cored screw conveying belt, this condensation-water drain is communicated with condensation water tank, and condensation water tank is connected with the waterworks of the boiler of boiler heating system again.
3. the broken drying plant of waste gas circulation according to claim 2, it is characterized in that: described drying chamber be provided be communicated with crustless sandwich or/and hollow rotating shaft or/and the condensation-water drain of cored screw conveying belt, this condensation-water drain is communicated with condensation water tank, and condensation water tank is connected with the waterworks of the boiler of boiler heating system again.
4. the broken drying plant of waste gas circulation according to claim 3, is characterized in that: the waste steam that drying chamber and material cooling tank produce is led to preheating can and on the passage between preheating can, is provided with induced draft fan and draws for leading at drying chamber and material cooling tank.
5. the broken drying plant of waste gas circulation according to claim 4, is characterized in that: the waste steam that drying chamber and material cooling tank produce is provided with material steam separator so that the bits dust comprising in waste steam is filtered on the passage before induced draft fan of preheating can.
6. the broken drying plant of waste gas circulation according to claim 5, is characterized in that: emission-control equipment is provided with induced draft fan on the passage of the boiler of boiler heating system.
7. the broken drying plant of waste gas circulation according to claim 6, it is characterized in that: on the passage between drying chamber and material cooling tank, be provided with sizing screen, an outlet of sizing screen is communicated with the opening for feed of material cooling tank, and another outlet of sizing screen is communicated with the opening for feed of drying chamber.
8. the broken drying plant of the waste gas circulation described in any one according to claim 1 to 7, is characterized in that: at drying chamber inwall, be provided with more than one broken knife section and the fixed blade rotating.
9. the broken drying plant of waste gas circulation according to claim 8, it is characterized in that: on the drying chamber inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap.
10. the broken drying plant of waste gas circulation according to claim 9, is characterized in that: described block is symmetric offset spread, and the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
The broken drying plant of 11. waste gas circulation according to claim 10, is characterized in that: on the discharge port of drying chamber, be provided with shifting board.
The broken drying plant of 12. waste gas circulation according to claim 11, it is characterized in that: the spiral conveyor that comprises one or more in described drying chamber, described spiral conveyor is screw lifting band, the opening for feed of drying chamber and discharge port are all arranged at the top of drying chamber, screw lifting band extends to the lower end of discharge port from the bottom of drying chamber, the gap of the bottom of screw lifting band and drying chamber bottom is more than or equal to 0.5 cm, and the width of hurricane band is more than or equal to 3 cm.
The broken drying plant of 13. waste gas circulation according to claim 12, it is characterized in that: on described screw lifting band, have while being provided with the rotation of screw lifting band and can, by the opening of broken knife section and fixed blade, between dry tank skin and broken knife section and fixed blade, do tangent motion.
The broken drying plant of 14. waste gas circulation according to claim 1, it is characterized in that: on the preheating can inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap.
The broken drying plants of 15. waste gas circulation according to claim 14, is characterized in that: described block symmetric offset spread, the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
The broken drying plant of 16. waste gas circulation according to claim 15, is characterized in that: the discharge port at preheating can is provided with shifting board.
17. according to the broken drying plant of the waste gas circulation described in claim 1 or 16, it is characterized in that: on the material cooling tank inwall of spiral conveyor over top, be provided with protrude from inner tank wall for changing the block of material direction of motion in drying chamber, between stop bottom and spiral conveyor, there is gap, described block is symmetric offset spread, and the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
The broken drying plant of 18. waste gas circulation according to claim 17, it is characterized in that: the broken drying plant of described waste gas circulation also includes storage bin, described storage bin is connected with the feeder with function of measuring by helical screw feeder, between feeder and preheating can, by helical screw feeder, carries out feeding.
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| CN201210127363.2A CN102674652B (en) | 2012-04-26 | 2012-04-26 | Circular waste gas crushing and drying equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103723902A (en) * | 2012-10-15 | 2014-04-16 | 上海中发环保(集团)有限公司 | Sludge drying method and apparatus thereof |
| CN103803769A (en) * | 2014-01-13 | 2014-05-21 | 重庆交通大学 | Vertical inter-partition sludge drying method and equipment with crushing and safety monitoring functions |
| CN104150732B (en) * | 2014-08-29 | 2016-05-25 | 凤阳海泰科能源环境管理服务有限公司 | A kind of mud two-stage anhydration system |
| CN106747691A (en) * | 2015-11-25 | 2017-05-31 | 江苏科化节能环保设备有限公司 | One kind cultivation soiled litter sterilizing and drying integral type disposing technique and system |
| CN105927988B (en) * | 2016-06-30 | 2018-11-13 | 安徽未名鼎和环保有限公司 | A kind of Disposal System of Mud Burning |
| CN106754255B (en) * | 2016-12-05 | 2024-01-12 | 江西省三余环保节能科技有限公司 | Drying fermentation equipment |
| CN109825705B (en) * | 2017-11-23 | 2023-09-05 | 中科京投环境科技江苏有限公司 | Device and method for recycling mercury from waste mercury catalyst |
| CN110194576A (en) * | 2019-06-24 | 2019-09-03 | 上海华畅环保设备发展有限公司 | Refine oil plant excess sludge dewatering and device |
| CN110482817B (en) * | 2019-09-05 | 2023-05-05 | 安阳海森科技有限公司 | Silt exhaust treatment device |
| CN113072271A (en) * | 2021-04-06 | 2021-07-06 | 惠州市鑫隆环境服务有限公司 | Sludge treatment equipment |
| CN115317637A (en) * | 2022-08-26 | 2022-11-11 | 张冠宇 | Effective disinfecting equipment of biomass energy steam box |
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| DE9311698U1 (en) * | 1993-08-05 | 1994-06-23 | Limex Gmbh Ges Fuer Angewandte | Device for the dehydration and drying of solid-liquid mixtures (slurries) |
| JP2891621B2 (en) * | 1993-11-16 | 1999-05-17 | 株式会社西原環境衛生研究所 | Hair removal device of centrifugal granulation dryer |
| JP4051051B2 (en) * | 2004-06-28 | 2008-02-20 | 三菱電機株式会社 | Drying system |
| JP4987428B2 (en) * | 2006-11-06 | 2012-07-25 | 住友大阪セメント株式会社 | High moisture content organic waste treatment method and treatment equipment |
| JP5112911B2 (en) * | 2008-02-28 | 2013-01-09 | 三菱重工環境・化学エンジニアリング株式会社 | Rotary kiln-type sludge dryer and its safe stop method |
| CN101560047A (en) * | 2008-04-16 | 2009-10-21 | 平国明 | Device and method for drying sludge with high environment protection and low cost |
| CN102230719B (en) * | 2011-06-16 | 2012-12-19 | 常州先锋干燥设备有限公司 | Spiral-flow dryer |
| CN102311216B (en) * | 2011-08-23 | 2012-09-05 | 郭少仪 | Separated thermal cycle sludge dry method and device thereof |
| CN202576184U (en) * | 2012-04-26 | 2012-12-05 | 福建清道夫环保科技有限公司 | Waste gas cycling crushing and drying equipment |
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