CN102674652A - Circular waste gas crushing and drying equipment - Google Patents
Circular waste gas crushing and drying equipment Download PDFInfo
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- CN102674652A CN102674652A CN2012101273632A CN201210127363A CN102674652A CN 102674652 A CN102674652 A CN 102674652A CN 2012101273632 A CN2012101273632 A CN 2012101273632A CN 201210127363 A CN201210127363 A CN 201210127363A CN 102674652 A CN102674652 A CN 102674652A
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- tank
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- 238000001035 drying Methods 0.000 title claims abstract description 195
- 239000002912 waste gas Substances 0.000 title claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000001816 cooling Methods 0.000 claims abstract description 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims description 27
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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, the broken drying plant of particularly a kind of waste gas circulation.
Background technology
The combination that mud complex structure, the zoogloea that is formed by multiple mikrobe and its adsorbed organic matter and inorganics are formed.Containing a large amount of moisture, pathogenic micro-organism and parasite etc., is that common equipment of crop drying is difficult to exsiccant product under short period of time, end cost, free of contamination running status.
Though the pollution to environment of city domestic sewage and trade effluent has effectively been alleviated in WWT,, the fittings-mud that produces after the WWT still produces secondary pollution to environment.Contain in the mud outside the nutritive elements such as enriching nitrogen, phosphorus, potassium; Also contain a large amount of pathogenic bacterias, parasite (ovum); The hazardous and noxious substances and the gas of difficult degradations such as heavy metals such as copper, zinc, chromium, mercury, salt and polychlorobiphenyl, dioxin; If sludge disposal is improper, these materials all possibly cause bigger harm to environment and the mankind and animal health.
Water in the mud is because of being wrapped up by cell, be at normal temperatures can't be released out therefore cause a large amount of mud of China to handle, heat drying processing cost before is high.Domestic research to sludge disposal equipment at present is many, but real handy sludge treatment technology and equipment has only several kinds, 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 objective of the invention is to overcome existing is the weak point of municipal sludge dry technology to useless admittedly rubbish, and a kind of moisture percentage in sewage sludge of can arbitrarily controlling is provided, and processing cost and treatment time significantly reduce; There is not secondary pollution; Turn waste into wealth, created condition, can be government and practice thrift a large amount of landfill soils for the regenerated using of mud;, the broken drying plant of the waste gas circulation of ecological environment benefit and obvious social benefit.
The broken drying plant of a kind of waste gas circulation, 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 housing with interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the cored screw conveying belt that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The opening for feed of preheating can is carried connection mutually with feeding unit; The discharge port of preheating can is carried connection mutually with the opening for feed of drying chamber; The interlayer of the housing of described preheating can or with the broken drying plant of waste gas circulation in waste steam that miscellaneous equipment produced be connected; Perhaps with heat collector in heat-pump hot-water be connected; Perhaps be connected with waste steam simultaneously 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, and the waste gas of described preheating and drying jar is towards cooling water system condensing device; The waste water of preheating and drying jar leads to wastewater treatment equipment, and the used heat of preheating and drying jar leads to heat collector;
Described drying chamber includes the housing with interlayer and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on follows the cored screw conveying belt formation that hollow rotating shaft rotates on the hollow rotating shaft; The discharge port of drying chamber leads to the 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 the 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 the housing that has interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the spiral conveyor that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The housing inner chamber is connected with the cooling water system respectively with hollow rotating shaft; The waste steam that the material cooling tank produces is led to preheating can, delivers to preheating can after the heat pump lifting temperature of the water coolant of material cooling tank through heat collector the preheating can is heated;
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, and emission-control equipment mixes the back and introduces the boiler heating system as combustion gases with fresh air.
The disposable completion in a drying chamber that the broken drying plant of waste gas circulation of the present invention will have dry technology now is from being warmed up to exsiccant traditional drying method, is decomposed into preheating, drying and cools off the intermittently drying mode of 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 discharging is sent into drying chamber takes away moisture in the drying chamber; The waste hot steam of the high-moisture percentage that produces during the work of drying chamber, material cooling tank is seen circulation timely off and is given crustless sandwich in the preheating can with to heating in the preheating can, and the waste hot steam after the cooling (also having about 45 degree) offers boiler again and uses as combustion air behind mixing fresh air after the purifying treatment.The benefit of hot waste gas recycle is: a provides replenishing of the interior heat of drying chamber; B takes away the high-moisture percentage waste gas in a large amount of drying chambers; C gives in the preheating can thermal source cheaply is provided, and 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 the high efficiency intermittently drying mode and the ultralow running cost of heat drying equipment.
Described preheating can is provided with and is communicated with hollow rotating shaft or/and the condensation-water drain of cored screw conveying belt, and 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 the water of condensation quilt that makes the high temperature saturation steam form in drying process heat release cooling back all reclaims as the production saturation steam of boiler is that soft water uses.
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 makes water of condensation that the high temperature saturation steam forms in drying process heat release cooling back all reclaimed as the production saturation steam of boiler is that soft water uses.
The waste steam that drying chamber and material cooling tank produce is led to preheating can and is provided with induced draft fan and draws for drying chamber and material cooling tank lead to passage between the preheating can.
The induced draft fan passage before that the waste steam that drying chamber and material cooling tank produce is led to preheating can is provided with material steam separator so that the bits dust that comprises in the waste steam is filtered.
The passage that emission-control equipment leads to the boiler of boiler heating system is provided with induced draft fan.
Passage between drying chamber and the material cooling tank is provided with sizing screen, and 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 the good mud of drying; Mud is divided into qualified and underproof product, and qualified mud gets in the jar through the opening for feed of material cooling tank, and underproof product is then sent into drying chamber and carried out again dry.
Be provided with more than one broken knife section and the fixed blade that rotates at the drying chamber inwall.
At the drying chamber inwall this knife section and fixed blade are set; When spiral conveyor is followed the hollow rotating shaft rotation; To be thrown to block mud on the tank skin and and do turning motion along tank skin; The block mud that moves along tank skin when taking exercises with tank skin on the fixed fixed blade form corner cut, block mud can be cut open after touching fixed blade, is released out for moisture in the sludge bulking can be contacted fast become water vapour behind the tank skin; Will let mud become thinner powder and contact, and at this moment start knife section and make it do high speed rotating mud is cut to powder contacts with tank skin fast by it with tank skin.
The drying chamber inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall, has the gap between stop bottom and the spiral conveyor.Described block is a 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 discharge port of drying chamber is provided with shifting board.
Described shifting board is by drive power source such as pneumatically operated switch or motors, and rotatable 90
oC is fixed in the discharge port place of spiral conveyor over top, has certain clearance between baffle plate bottom and the conveying belt top, plate washer plane and the drying chamber wall shape that becomes to be arranged in parallel during not discharging, and baffle plane becomes 90 with dry tank skin during discharging
oC takes advantage of the wide 3cm of being not less than * 20 cm with the length of the contact surface of material.
Comprise the spiral conveyor more than in the described drying chamber; Described spiral conveyor is the spiral elevator belt; The opening for feed of drying chamber and discharge port all are arranged at the top of drying chamber; The spiral elevator belt extends to the lower end of discharge port from the bottom of drying chamber, the gap of the bottom of spiral elevator belt 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 the described spiral elevator belt opening is arranged, openings of sizes can be through broken knife section and the fixed blade of rotatablely moving, during work and the broken knife section that rotates on the dry tank skin and fixed blade do tangent motion.
By the block mud that the drying chamber opening for feed gets into, the mud of the fine particulate that in drying chamber, after dry break process, becomes is discharged by discharge port.
The preheating can inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall, has the gap between stop bottom and the spiral conveyor.Described block symmetric offset spread, the length of block and material contact surface are taken advantage of and are wider than or equal 1cm * 20 cm.
The discharge port of preheating can is provided with shifting board.This block is by drive power source such as pneumatically operated switch or motors, and rotatable 90
oThe top of being fixed in spiral conveyor top otch of C, baffle plate lower curtate and conveying belt top otch have a free active gap, and shelves are fast parallel with the preheating tank skin during not discharging, become 90 with dry tank skin during discharging
oThe C angle.
Comprise the spiral conveyor more than in the described preheating can, described spiral conveyor is the spiral elevator belt, 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.
The material cooling tank inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall; Has the gap between stop bottom and the spiral conveyor; Described block is a 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 cool but discharge port of jar of material is provided with discharger.
Described discharger is by various propulsion source controls such as motor or pneumatically operated switch.
Comprise the spiral conveyor more than in the cold jar of described material, described spiral conveyor is the spiral elevator belt, 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 cool but below of jar of material.
Adopt spiral not have a feed appliance between preheating can and the drying chamber, between drying chamber and the classification general and carry out feeding/charging.
The broken drying plant of described waste gas circulation also includes the mud storage bin, and described mud storage bin links to each other with the feeder that has function of measuring through helical screw feeder, carries out feeding through helical screw feeder between feeder and the preheating can.
In sum, the present invention compares the following advantage of prior art:
As everyone knows: water is flowing fluid at normal temperatures; Along with the rising of temperature has just become water vapour; Can be melted in the air and taken away by air-flow; Air under the condition of high temperature can be used as heating agent transfer of heat is carried out the heat conversion to media; Warm air after the exchange is along with the reduction recurrence of temperature is reduced to water again 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 the mode of operation of this physical phenomenon through three steps combinations of preheating, drying, cooling intermittently, the used heat tail gas of the band temperature of boiler emission is fed in the inherent drying process of working chamber of drying chamber the waste hot steam that produces handle the back introduce through induced draft fan before in the preheating can of operation in, be in the preheating can to being about to the exsiccant material in the preheating can; It is exactly a water cooler concerning waste heat gas; Through being reduced to water and waste gas to cooling behind the dry thing of heat transferred, so just realized that the material that the interior used heat supply that produces of self drying chamber will dry also be under the normal temperature preheats, and can also practice thrift a large amount of cooling waters being used as in the preheating can when water cooler uses; The recycling of used heat has realized the heat drying mode of Ultra Low Cost, has 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: with the mud of the high-moisture percentage city domestic sewage treatment plant of storage bin more than 80%; Through handling machinery mud is sent into the automatic gauge feeder; After sending into the interior preheating of preheating can after the metering; The mud of high viscosity is transferred in dry broken jar; In drying chamber, constantly be raised and broken,, at this moment be wrapped in cellular water in the mud and discharged fully and become free-water because of the dry thing of centrifugal principle can contact the intensification of absorbing heat until the mud membranolysis with hot wall fast in rotary lifting; Through with become water vapour after the high temperature hot wall contacts after extracted out drying chamber by vacuum fan; Dried product is sieved into finished product up to standard and underproof substandard products by sizing screen, finished product is transferred to carries out cooling packing in the material cooling tank and be drying prods, and underproof substandard products are admitted to inner chamber and new dry thing after drying in the drying chamber with the classified sieve discharge port of material returning device e.
The used heat circulation process: the material of high-moisture percentage in the process of heat drying, can produce a large amount of waste hot gas and spent hot water whole in the present invention be recovered utilization.The saturation steam that the saturation steam that mummification thermal source boiler is produced is sent to drying chamber is respectively heated in interlayer and the preheating can, the tubular shaft heating chamber of drying chamber and spiral promote and heat in the blade heating chamber and form the 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 replenishing drying chamber, taken away the moisture in the drying chamber (being high-temp waste gas) in the heat; This waste gas with induced draft fan through material steam separator; Used heat is introduced in the waste heating chuck in the preheating can, used as the thermal source in the preheating can.
The spent hot water of the band temperature that produces during with drying, preheating, cooling is recovered in the heat collector; Introduce when utilizing heat pump that waste water is elevated to working temperature in the hot water heating courage in the preheating can to heating in the preheating can, as the another kind of supplying heat source use in the preheating can.Thermal wastewater after the utilization is admitted to biochemical treatment tank processing up to standard back discharging; Hot waste gas body after the utilization be admitted to earlier emission-control equipment through after the purifying treatment with the fresh air proportional mixing after just be admitted to heating boiler the air inlet combustion chamber that gets into boiler D purify back dedusting safety up to standard through high-temp combustion and enter atmosphere, the water source that the water of condensation that the high temperature saturation steam in the drying process forms in drying process heat release cooling back is all reclaimed as the production saturation steam of boiler is the soft water use.
Description of drawings
Fig. 1 is the synoptic 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
The broken drying plant of a kind of waste gas circulation 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 housing with interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the cored screw conveying belt that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The opening for feed of preheating can is carried connection mutually with feeding unit; The discharge port of preheating can is carried connection mutually with the opening for feed of drying chamber; The interlayer of the housing of described preheating can or with the broken drying plant of waste gas circulation in waste steam that miscellaneous equipment produced be connected; Perhaps with heat collector in heat-pump hot-water be connected; Perhaps be connected with waste steam simultaneously 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, and the waste gas of described preheating and drying jar is towards cooling water system condensing device; The waste water of preheating and drying jar leads to wastewater treatment equipment, and the used heat of preheating and drying jar leads to heat collector; Described preheating can is provided with the condensation-water drain that is communicated with hollow commentaries on classics 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.The preheating can inwall is provided with and is used to change the material block of heading within it.The discharge port of preheating can is provided with shifting board.Comprise the spiral conveyor more than in the described preheating can, described spiral conveyor is the spiral elevator belt, 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 the housing with interlayer and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on follows the cored screw conveying belt formation that hollow rotating shaft rotates on the hollow rotating shaft; The discharge port of drying chamber leads to the 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 the 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.The drying chamber inwall is provided with and is used to change the material block of heading within it.The discharge port of drying chamber is provided with shifting board.Comprise the spiral conveyor more than in the described drying chamber, described spiral conveyor is the spiral elevator belt, and the opening for feed of drying chamber and discharge port all are 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 the housing that has interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the spiral conveyor that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The housing inner chamber is connected with the cooling water system respectively with hollow rotating shaft; The waste steam that the material cooling tank produces is led to preheating can, delivers to preheating can after the heat pump lifting temperature of the water coolant of material cooling tank through heat collector the preheating can is heated; Material cooling tank inwall is provided with and is used to change the material block of heading within it.The cool but discharge port of jar of material is provided with discharger.Comprise the spiral conveyor more than in the cold jar of described material, described spiral conveyor is the spiral elevator belt, 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 cool but below of jar of material.
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, and emission-control equipment mixes the back and introduces the boiler heating system as combustion gases with fresh air.
The waste steam that drying chamber and material cooling tank produce is led to preheating can and is provided with induced draft fan and draws for drying chamber and material cooling tank lead to passage between the preheating can.
The induced draft fan passage before that the waste steam that drying chamber and material cooling tank produce is led to preheating can is provided with material steam separator K1 so that the dust that is full of in the waste steam is filtered.
The passage that emission-control equipment leads to the boiler of boiler heating system is provided with induced draft fan.
Passage between drying chamber and the material cooling tank is provided with sizing screen, and 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.
Be provided with more than one broken knife section and the fixed blade that rotates at the drying chamber inwall.
The broken drying plant of described waste gas circulation also includes mud storage bin H1, and described mud storage bin links to each other with the feeder J1 that has function of measuring through helical screw feeder, carries out feeding through helical screw feeder between feeder and the preheating can.
The broken drying plant concrete structure of described waste gas circulation is following:
Preheating can A be by one have a waste gas thermal source a and a heat-pump hot-water thermal source have heat a vertical tank body of circular metal of interlayer of two thermals source; Inner tank wall 1 is used in order to the thing preheating that is dried heat transferred; It is connecting the hollow opening for feed 4 that does not have axle feeding screw 12a that has phonomoter 14 by one; One or several are connecting the hollow discharge port 5 that does not have axle spiral discharging device 12b that has phonomoter 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; 8, one connection motors of one or several wastewater outlets 16a is fixed on the tank body hollow rotating shaft 9 at two ends up and down, and rotating shaft connects some the cored screw elevator belts 10 that continuity rising material ability is arranged through supporting 6; One or several connect the activity discharge baffle 11 of motor (or pneumatically operated switch) 12, and 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 is one and has 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 the thing that is dried heat transferred; It is connecting the hollow opening for feed 18 that does not have axle feeding screw 12b that has phonomoter 15 by one; One or several are connecting the hollow discharge port 19 that does not have axle spiral discharging device 12c that has phonomoter 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 tank body B hollow rotating shaft 26 at two ends up and down fixedly; Being connected with the several strips opening in the rotating shaft has the cored screw elevator belt 27 of continuity rising material ability again, and drying chamber inwall each layer up and down is fixed with several by the broken knife section 28 of rotation and several fixed blades 29 that motor 20 drives, and one or several are fixed on the fixedly link stopper 13b that can change the material direct of travel on the 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.
The material cooling tank
CIt is a vertical tank body of metal that has cooling water source chuck layer 33 cooling layer, circle; Inner tank wall 32 usefulness cryogenic medias transmit heat exchange and reduce the dried finished temperature of charge; It is by an opening for feed 35 that is connecting the thin discharge port f of the sizing screen 34 that has phonomoter; 38 1 cooling water outlets 39 of an entrance of cooling water; Connection motor 40 is the tank body C hollow rotating shaft 41 at two ends up and down fixedly; Be connected with some the spiral elevator belts 42 that continuity rising material ability is arranged through 10c in the rotating shaft, one or several are connecting the discharge port 37 that has phonomoter discharger 36, and one or several are fixed on the fixedly link stopper 13c that can change the material direct of travel on the inner tank wall.
Workflow of the present invention:
The saturation steam that at first produces with the boiler D of boiler heating system is sent to gas collection cylinder F; The inlet mouth 22 of F1 through drying chamber B gets in the interlayer 17 of heating of drying chamber B, F2 gets into tubular shaft heating chamber 26 and promote that 6b heats in the blade heating chamber; F3 gets in the hollow rotating shaft 9 of preheating can A and other need the position of preheating to carry out the tank body preheating; The work inner chamber of the used heat tail gas of boiler D discharging being sent into drying chamber B contacts with the thing that is dried; Take away the moisture in the drying chamber B in the time of concurrent heating, through material steam separator, used heat is introduced the waste gas of drying chamber B generation in the waste gas heat supply interlayer of preheating can A through inlet mouth 3 with induced draft fan; In the hot water heating chuck of the high-temperature-hot-water introducing preheating can A of heat pump generation the tank skin 1 of preheating can A being heated, let the inwall metallic surface of preheating can form the high temperature hot wall simultaneously.Start the mud forwarder when preheating can A reaches working temperature the mud in the mud storage bin is sent into the weight metering that the automatic gauge feeder carries out dried material, reach after the measurement standard starter motor 14 and utilize and do not have axle helical screw feeder 12a send into mud preheating can through opening for feed 4 bottom.The phonomoter 16a drive that starts preheating can A is connected with several strips through support 6 has the spiral elevator belt 10 of continuity rising material ability to run up; Mud constantly prolong under the lifting force of hurricane band 10 and the action of centrifugal force tank skin be thus lifted to preheating can above; After colliding, change running orbit with block 13a; Leaving preheating tank skin 1 falls after rise to the bottom of preheating can A; Mud progressively rises because of circumferential motion that action of centrifugal force can be constantly done 360 degree along tank skin 1 in the process that ribbon 10 rises; Warp frequently contacts fast, absorbs heat with heated wall; Mud heats up gradually when lifting reaches preset temperature, and actuating motor 12 revolves shifting board 11 and turn 90 degrees, and lets active catch scraper plate and the baffle-panels that promotes the vertical an angle of 90 degrees of spiralization; The mud that lifting hurricane band high speed circumferential running has high viscosity constantly is raised up and rests on the baffle plate; Mud can be stacked on above the discharge port 5 of baffle plate and preheating can under action of centrifugal force, at this moment opens discharge port 5 mud and will get into automatically in the helical screw feeder 12b, and the mud that at this moment actuating motor 15 is good with preheating is not transferred to through the opening for feed 18 of drying chamber and gets into drying program in the drying chamber through there being axle spiral 12b.
The mud that is transferred to drying chamber top falls into the bottom of drying chamber through the opening for feed 18 of drying chamber B under the effect of gravity; The phonomoter 16b that starts drying chamber B drives the spiral elevator belt 27 high speed running through the several strips continuity rising material ability that supports the 6b connection; Mud under the effect of the lifting force of hurricane band 27 with action of centrifugal force under can constantly be thus lifted to when can constantly do the circumferential motion of 360 degree along the jar inwall 16 of drying chamber B drying chamber B above; After colliding, change running orbit with block 13b; Leaving dry tank skin 16 falls after rise to the bottom of drying chamber B; Mud is so repeatedly in jar to roll up and down, the hot wall of motion and drying chamber B 16 is quick and frequent contacts repeatedly, heat absorption; The mud of high-moisture percentage will produce a large amount of water vapour; At this moment start induced draft fan and extract water vapour out drying chamber B fast and let mud reduce moisture fast and drying, mud can form the elastic granule and the fast shape of elasticity of parcel water along with the continuous decline of water ratio in heat absorption fast, intensification, exsiccant process, and block mud contains a large amount of water.Block mud in the circumferential motion of doing 360 degree along the inwall 16 of drying chamber B with tank skin on several blades 29 of fixed can form corner cuts; Block mud can be cut open after touching blade; Be released out for the moisture of mud in fast can be contacted fast become water vapour behind the tank skin; Will let mud become thinner powder and contact with tank skin 16, at this moment starter motor 20 lets 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 the exsiccant process in the chuck can form the water of condensation of band temperature because of heat release, and the water inlet equipment that can be connected to boiler through the water of condensation collection box is by the 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, behind glassware separator separates dust, is used as the heat supply gas of preheating by preheating can A.Promote hurricane band high speed circumferential running and constantly have the upper end that dry good mud constantly is thus lifted to drying chamber; Actuating motor 21 revolves shifting board 31 and turn 90 degrees; Let active catch and lifting ribbon form the baffle-panels of vertical an angle of 90 degrees; Opening discharge port 19 dry good mud will get in the feed appliance 12C under action of centrifugal force automatically; The mud that actuating motor 21 is good with drying is transplanted on the mud that classified sieve is good with drying in the sizing screen and is divided into salable product and unacceptable product, and qualified mud is in the opening for feed of cooling tank C 35 gets into jar, and mud defective and that have a temperature gets into preheating can once more, and to sneak into new mud dry again.
Let water coolant get into to come out through a G of cooling water system from cold water interlayer water outlet 39 through the cold water interlayer import 38 of cooling tank C; Let cooling tank C inwall 32 form the low temperature wall; Phonomoter 40 drives that start cooling tank C are connected with several strips through support 6c has the spiral elevator belt 10c of continuity rising material ability to run up; Dry good mud constantly be thus lifted under the lifting force of hurricane band 10c and the action of centrifugal force cooling tank above; After colliding, change running orbit with block 13c; Leave cooling tank skin 32 fall after rise to jar the bottom, mud can constantly be done the circumferential motion of 360 degree under because of action of centrifugal force along tank skin 32 in the process that ribbon 10c rises, warp frequently contacts heat release up and down fast with the low temperature wall; Mud cooling startup starting switch 36 when reaching preset temperature is rapidly opened discharging valve quilt
All can produce a large amount of waste water and waste gas during heat exchange in preheating, drying and process of cooling; Waste water can be discharged to through the water port 8 of preheating can and carry out biopurification in the treating pond H of wastewater treatment equipment and handle; The waste gas that produces enters condensing surface E through venting port 7, the a1 of preheating can 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 get into the above high-temp combustion of combustion chamber 800 degree of boiler as the combustion gases of boiler, just can not produce Dioxins through the waste gas of handling like this, after the udst separation processing is up to standard, be discharged in the atmosphere.The tail gas used heat that boiler produces is introduced after dehumidifying by induced draft fan introducing moisture trap becomes the heat supplement of being taken away when drying chamber B takes water vapour away because of vacuum fan in the drying chamber B, the used heat tail gas of utility value passes through sack cleaner and air is cleaned the safe qualified discharge in tower processing back to atmosphere and another part does not have.
It is identical with prior art that 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 housing with interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the cored screw conveying belt that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The opening for feed of preheating can is carried connection mutually with feeding unit; The discharge port of preheating can is carried connection mutually with the opening for feed of drying chamber; The interlayer of the housing of described preheating can or with the broken drying plant of waste gas circulation in waste steam that miscellaneous equipment produced be connected; Perhaps with heat collector in heat-pump hot-water be connected; Perhaps be connected with waste steam simultaneously 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, and the waste gas of described preheating and drying jar is towards cooling water system condensing device; The waste water of preheating and drying jar leads to wastewater treatment equipment, and the used heat of preheating and drying jar leads to heat collector;
Described drying chamber includes the housing with interlayer and is arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and is fixed on follows the cored screw conveying belt formation that hollow rotating shaft rotates on the hollow rotating shaft; The discharge port of drying chamber leads to the 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 the 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 the housing that has interlayer, be arranged at the hollow rotating shaft of doing turning motion of housing inner chamber and be fixed on and follow the spiral conveyor that hollow rotating shaft rotates on the hollow rotating shaft and constitute; The housing inner chamber is connected with the cooling water system respectively with hollow rotating shaft; The waste steam that the material cooling tank produces is led to preheating can, delivers to preheating can after the heat pump lifting temperature of the water coolant of material cooling tank through heat collector the preheating can is heated;
The waste water that cooling water system condensing device produces enters wastewater treatment equipment, waste gas enters emission-control equipment, mixes being introduced into boiler combustion system as combustion gases after the treated apparatus processes of waste gas with fresh air.
2. the broken drying plant of waste gas circulation according to claim 1; It is characterized in that: described preheating can is provided with and is 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: said 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 is provided with induced draft fan and draws for drying chamber and material cooling tank lead to passage between the preheating can.
5. the broken drying plant of waste gas circulation according to claim 4 is characterized in that: the induced draft fan passage before that the waste steam that drying chamber and material cooling tank produce is led to preheating can is provided with material steam separator so that the bits dust that comprises in the waste steam is filtered.
6. the broken drying plant of waste gas circulation according to claim 5, it is characterized in that: the passage that emission-control equipment leads to the boiler of boiler heating system is provided with induced draft fan.
7. the broken drying plant of waste gas circulation according to claim 6; It is characterized in that: the passage between drying chamber and the material cooling tank is 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. according to the broken drying plant of any one described waste gas circulation of claim 1 to 7, it is characterized in that: be provided with more than one broken knife section and the fixed blade that rotates at the drying chamber inwall.
9. the broken drying plant of waste gas circulation according to claim 8; It is characterized in that: the drying chamber inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall, has the gap between stop bottom and the spiral conveyor.
10. the broken drying plant of waste gas circulation according to claim 9, it is characterized in that: described block is a symmetric offset spread, the length of block and material contact surface is taken advantage of and is wider than or equals 1cm * 20 cm.
11. the broken drying plant of waste gas circulation according to claim 10, it is characterized in that: the discharge port of drying chamber is provided with shifting board.
12. the broken drying plant of waste gas circulation according to claim 11; It is characterized in that: comprise the spiral conveyor more than in the described drying chamber; Described spiral conveyor is the spiral elevator belt, and the opening for feed of drying chamber and discharge port all are arranged at the top of drying chamber, and the spiral elevator belt extends to the lower end of discharge port from the bottom of drying chamber; The gap of the bottom of spiral elevator belt 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.
13. the broken drying plant of waste gas circulation according to claim 12; It is characterized in that: have on the described spiral elevator belt when being provided with the rotation of spiral elevator belt and can do tangent motion between dry tank skin and broken knife section and the fixed blade through the opening of broken knife section and fixed blade.
14. the broken drying plant of waste gas circulation according to claim 1; It is characterized in that: the preheating can inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall, has the gap between stop bottom and the spiral conveyor.
15. the broken drying plant of waste gas circulation according to claim 14 is characterized in that: described block symmetric offset spread, the length of block and material contact surface are taken advantage of and are wider than or equal 1cm * 20 cm.
16. the broken drying plant of waste gas circulation according to claim 15, it is characterized in that: the discharge port at preheating can is provided with shifting board.
17. according to claim 1 or the broken drying plant of 16 described waste gas circulation; It is characterized in that: the material cooling tank inwall of spiral conveyor over top is provided with the block that is used to change material heading in drying chamber that protrudes from inner tank wall; Has the gap between stop bottom and the spiral conveyor; Described block is a 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.
18. the broken drying plant of 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 links to each other with the feeder that has function of measuring through helical screw feeder, carries out feeding through helical screw feeder between feeder and the preheating can.
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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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| CN201210127363.2A CN102674652B (en) | 2012-04-26 | 2012-04-26 | Circular waste gas crushing and drying equipment |
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| CN201210127363.2A Expired - Fee Related 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 |
| CN104150732A (en) * | 2014-08-29 | 2014-11-19 | 凤阳海泰科能源环境管理服务有限公司 | Two-stage sludge drying system |
| CN105927988A (en) * | 2016-06-30 | 2016-09-07 | 安徽未名鼎和环保有限公司 | Efficient sludge incineration treatment system |
| CN106754255A (en) * | 2016-12-05 | 2017-05-31 | 江西省三余环保节能科技有限公司 | It is a kind of to dry Zymolysis Equipment |
| 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 |
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| 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 |
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| CN109825705A (en) * | 2017-11-23 | 2019-05-31 | 中科京投环境科技江苏有限公司 | A kind of useless mercury catalyst recycling mercury device and recovery method |
| 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 |
| CN110482817A (en) * | 2019-09-05 | 2019-11-22 | 安阳海森科技有限公司 | A kind of mud emission-control equipment |
| 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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