CN105819649A - Bottom drying-type sludge drying device and bottom drying-type sludge drying method - Google Patents
Bottom drying-type sludge drying device and bottom drying-type sludge drying method Download PDFInfo
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- CN105819649A CN105819649A CN201510006486.4A CN201510006486A CN105819649A CN 105819649 A CN105819649 A CN 105819649A CN 201510006486 A CN201510006486 A CN 201510006486A CN 105819649 A CN105819649 A CN 105819649A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a bottom drying-type sludge drying device. The bottom drying-type sludge drying device comprises a casing, wherein, a first drying chamber and a second drying chamber is formed in the casing, and a splitter plate is arranged between the first drying chamber and the second drying chamber. A feed inlet and an air outlet are arranged on the first drying chamber, a discharge hatch is arranged on the circumferential wall of the first drying chamber, an air inlet is arranged on the circumferential wall or the bottom of the second drying chamber, a communication port is formed on the splitter plate, a sludge stirring apparatus is arranged in the first drying chamber, wherein, the sludge stirring apparatus comprises a rotation shaft and a stirring component fixed on the rotation shaft, and the size of the stirring component determines cutting, fragmentation and stirring of the sludge, a top end surface faces and closes to the communication port, and the top of the stirring component is capable of scraping the sludge in the communication port or near the communication port when the stirring components rotates with the rotation shaft. The invention also provides a method for drying the sludge by using the sludge drying device.
Description
Technical field
The present invention relates to sludge drying field, in general, relate to a kind of mud drying device, particularly relate to a kind of bottom dry type mud drying device in monomeric form and the method utilizing this mud drying device to carry out drying sludge.
Background technology
Mud is the side-product produced in sewage disposal process, and sewage treatment plant generally uses the method concentrated and be dehydrated that from more than 90%, the moisture content of mud is reduced to 60-80%, carries out the mud processed afterwards filling, solidifying or drying and other treatment.The problem that landfill is prone to make sludge fermentation and secondary pollution environment occurs, and existing solidification or drying equipment owing to the mud of moisture content about 40-60% has, viscosity is strong, easily caking, difficult broken characteristic need to expend the substantial amounts of energy in the process processing mud, therefore, its cost is high, efficiency is low, the decrement of mud is poor, it is difficult to meet the demand processing a large amount of mud.
Chinese invention patent (CN101186422A) proposes a kind of enclosed multi-chamber fluidized bed drying method for sludge.Fluid bed employed in this method not only expends the energy and efficiency is the lowest, it is difficult to realizes continuous and large-scale sludge drying and processes.
Chinese utility model patent (CN203319838U) proposes a kind of sludge solidification processing agitator.This blender by stirring by mud and dry powder blend to realize the solidification of mud, the most do not remove the moisture in mud, also add the volume of mud, and cause the mud after solidification to be utilized again.
The Chinese utility model patent (CN201000261Y) being filed by the present applicant and authorizing proposes a kind of mud low-temperature drier.Although this drying device realizes certain mud decrement, but the time of consuming is long, had the most both consumed the energy and has also been not reaching to the intended purpose improving mummification efficiency.
The application for a patent for invention (attorney docket CPME1443763N) submitted on the same day with the application proposes the mud drying device of a kind of bottom dry type, wherein, along with turning device constantly the digging mud in the first hothouse, mud is dried by the dry gas that the connected entrance through demarcation strip enters in the first hothouse from secondary drying chamber.But, mud drying process usually there will be mud and block connected entrance, and cause dry gas to be difficult to move smoothly through connected entrance and enter the situation in the first hothouse, so that the drying process of mud is made slow progress.
For this reason, it may be necessary to the desiccation apparatus of the bottom dry type of a kind of improvement and method, to improve the mummification efficiency of mud.
Summary of the invention
In order to overcome defect present in prior art, the present invention proposes the bottom dry type mud drying device of a kind of monomeric form.In the mud drying device of the present invention, by the turning device in the first hothouse to the continuous shear stress of mud, broken and stir, mud is made frequently to contact with dry gas, thus the problem that the inside and outside portion degree of drying that occurs during solving drying sludge is uneven.
In the mud drying device of the present invention, it is dried gas and from bottom, mud is dried by the connected entrance formed on the demarcation strip separating the first hothouse and secondary drying chamber arranged in housing.Along with turning device is to the shearing of mud, broken and stir, the granularity of mud constantly changes, and causes the sponginess of mud and mobility to strengthen, thus is conducive to being dried gas and enters the first hothouse.
In the mud drying device of the present invention, in striking off connected entrance by the relatively linear leaf stirring assembly of turning device or the front end of ratchet or the front end of scraped parts that is fixed on blade or ratchet or neighbouring mud, make to be dried the gas flowing from the first hothouse entrance secondary drying chamber more smoothly, improve the frequency contacted with mud.
In the mud drying device of the present invention, improve dry gas by air-blast device and enter the speed of the first hothouse, thus accelerate to be dried the flowing velocity of gas, promote being fully contacted of dry gas and mud.
In the mud drying device of the present invention, heat dry gas to improve the drying efficiency of mud by arranging heater.
In the mud drying device of the present invention, by arranging the turning device that at least two is arranged side by side in the first hothouse, wherein, two turning devices multiple stir assembly can interlaced arrangement each other, not only increase the drying efficiency of mud drying device, so that the total of mud drying device is compacter.
The mud drying device of the present invention is substantially monomeric form, and it has, and mummification efficiency is high, energy consumption is low, floor space is little, decrement is big and adaptable feature, is completely suitable for the needs of existing market.Owing in densely populated city, the setting of sewage treatment plant more disperses, therefore, in the case of few equipment changed in existing sewage treatment plant, just can configure the mud drying device of this monomeric form.
The mud drying device of the present invention and method utilize the assembly that stirs of the turning device arranged in the first hothouse constantly to shear, crush and stir mud, simultaneously by be arranged on the relatively linear leaf or the front end of ratchet that stir on assembly or the front end of scraped parts that is fixed on blade or ratchet strike off connected entrance in or neighbouring mud, being dried of mud can be accelerated.The mud drying device of the present invention and method can solve the problem that a viscosity difficult problem strong, that easily caking, difficulty crush present in mud, significantly remove the moisture in mud, and the graininess of mud is changed into granular, thus improve the mummification efficiency of mud, reduce energy consumption simultaneously.
Accompanying drawing explanation
The structure of the preferred embodiments of the invention, advantage and technique effect is described in detail, wherein below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is the partial lengthwise sectional view of the bottom dry type mud drying device of the present invention;
Fig. 2 is the transverse sectional view of the mud drying device in Fig. 1;
Fig. 3 is the schematic perspective view of the turning device of mud drying device;
Fig. 4 is the schematic perspective view of the first hothouse of mud drying device;
Fig. 5 is the schematic perspective view arranging turning device in first hothouse of Fig. 4;
Fig. 6 is the schematic perspective view of the secondary drying chamber of mud drying device;
Fig. 7 is the sectional view of the amplification of the part A irised out in Fig. 1, wherein stirs the position that assembly is in the connected entrance of flat demarcation strip;
Fig. 8 is the sectional perspective schematic diagram of the upper part of the housing of another embodiment of the bottom dry type mud drying device of the present invention；
Fig. 9 is the schematic perspective view arranging turning device in first hothouse of Fig. 8;
Figure 10 is the sectional view of the amplification of the C portion irised out in Fig. 9, wherein stirs the position of connected entrance that assembly is in the demarcation strip of curved surface;And
Figure 11 is the transverse views of the another embodiment of the bottom dry type mud drying device of the present invention.
Detailed description of the invention
Fig. 1 shows a preferred embodiment of the bottom dry type mud drying device of the present invention, and Fig. 2 is the view of the H-H line taken transverse along Fig. 1, wherein schematically illustrates the mud drying device of a kind of monomeric form.Bottom dry type mud drying device 1 includes housing, wherein, is provided with demarcation strip 4 in housing, the inner space of housing to be separated out two chambers as the first hothouse 6a and secondary drying chamber 6b.Demarcation strip 4 being formed connected entrance 5, can enter into the first hothouse 6a from secondary drying chamber 6b so that being dried gas.Although as it can be seen, the first hothouse 6a and secondary drying chamber 6b arranges up and down but it also may there is other arrangement form.Housing generally comprises body 2, upper cover (or lid) 3 and base plate 4a, and wherein, the upper part of body 2, upper cover 3 and demarcation strip 4 constitute the first hothouse 6a, and the lower part of body 2, demarcation strip 4 and base plate 4a constitute secondary drying chamber 6b.But, housing can be formed by multiple parts or constructed in various ways, such as, the upper part of body 2 can be integrally formed with demarcation strip 4, wherein, by the bottom used above as the first hothouse 6a of demarcation strip, and the lower part of body 2 is fixed on demarcation strip, with by the top used below as secondary drying chamber 6b of demarcation strip.Furthermore it is also possible to the lower part of body 2 be integrally formed with demarcation strip 4, or cancel base plate 4a, body 2 is arranged on the B of ground etc..
As shown in the figure, the upper cover 3 of housing is respectively provided with and introduces the charging aperture 8 of mud to be dried to be dried and be dried the tail gas of mud or the air vent 10 of dry gas for discharging, and on the end wall of the upper part away from the body 2 near the demarcation strip 4 of charging aperture 8, be provided with the discharging opening 9 for the mud being dried.In a further embodiment, the optional position that can as required the charging aperture 8 or air vent 10 that are used for the first hothouse 6a be arranged in one of them in body 2 and upper cover 3, namely the optional position of the upper part of the first hothouse 6a.Equally, discharging opening 9 can be arranged on the optional position of the circumferential wall including sidewall and end wall of the upper part of body 2, namely the optional position of the circumferential wall of the first hothouse 6a.
Fig. 3 shows the preferred embodiment of the turning device of the present invention, wherein, turning device 7 have rotary shaft 701 and be fixed in rotary shaft 701 stir assembly 702c1,702c2,702c3 and 702c4 for stirring the multiple of mud.From on the turning device shown in Fig. 2 to stir assembly different, these stir assembly and are respectively provided with different configuration or shape.Stirring assembly 702c1 and include four blades or ratchet 703c1, and stir assembly 702c2 and include three blades or ratchet 703c2, they are similar to the blade of propeller on profile, and long than other of one of them blade or ratchet.Stirring assembly 702c3 and have the plate-like being similar to gear, wherein, the periphery at disc portion has outwardly directed protuberance or short blade or ratchet 703c3.Stir assembly 702c4 and include two blades or ratchet 703c4.Extend radially outward as it can be seen, each stirs the blade on assembly 702c1,702c2,702c3 and 702c4 or ratchet from the axis of rotary shaft 701.But, the shape stirring assembly 702 is not limited only to this, can will stir assembly and be designed to various configuration as required.Rotary shaft 701 can arrange one or more assembly 702 that stirs, and each assembly 702 that stirs can include one or more blade or ratchet 703.Each multiple blades stirred on assembly 702 or ratchet 703 can be differing from each other from the length that rotary shaft 701 is extended, and multiple at least one stirred in assembly 702 is stirred assembly and can be had a blade or ratchet 703 that length is longer, and other stirs assembly and can have the shorter blade of length or ratchet 703.Although blade or ratchet in diagram are soldered in rotary shaft 701, but can also use such as other fixed forms such as bolt, rivetings, additionally, can also install to be formed on the rotating shaft by axle ring etc. afterwards stir assembly by blade or ratchet being attached or secured on axle ring, axle sleeve or wheel hub (not shown).
Figure 4 illustrates the preferred embodiment of the first hothouse of mud drying device.In the first hothouse 6a, form multiple difform connected entrance 5 arranged spaced apart at demarcation strip 4.The shape of connected entrance 5 can include trapezoidal, rectangle, polygon, triangle, arch, circular etc..In other words, connected entrance 5 does not has shape and quantitative restriction, can be as desired to determine.It addition, connected entrance 5 can also be the array of multiple aperture 5a composition, wherein, the array of aperture can be the shape of connected entrance as above.The shape of the first hothouse is rectangular but it also may be square, polygon, ellipse or other shape.Multiple connected entrances 5 are arranged on demarcation strip in groups along the longitudinal direction G of housing, and often multiple connected entrances 5 are spaced from each other a certain distance in group.The length direction of each connected entrance 5 substantially longitudinal direction G with housing intersects, and is preferably mutually perpendicular to.
Fig. 5 shows the preferred embodiment arranging turning device in the first hothouse, and wherein, two turning devices 7a, 7b are arranged parallel to each other along the longitudinal direction G of housing.Each turning device 7a, 7b have rotary shaft 701a, 701b and fixing on the rotating shaft stir assembly 702a or 702b for stirring the multiple of mud.Two turning devices 7a, 7b have and identical stir assembly 702a, 702b, and such as, each assembly that stirs includes four blades or ratchet 703a, 703b.But varying number can also be included or heteroid stir assembly.Rotary shaft 701a, the two ends of 701b are arranged on by such as bearing in hole 201a, the 201b in the opposite end walls of the first hothouse 6a respectively.External impetus equipment (not shown) can by rotary shaft 701a, 701b one end on arrange power input, such as 18a drives turning device, as shown in Figure 1.
Fig. 6 shows a preferred embodiment of the secondary drying chamber of mud drying device, wherein, secondary drying chamber 6b includes the air inlet 15 being arranged in the lower part of body 2, namely air inlet 15 is positioned on the sidewall of secondary drying chamber 6b, enter in secondary drying chamber 6b being used in the dry gas of mud to be dried.Air inlet can be one or more, and can also be arranged on end wall or the base plate 4a of secondary drying chamber 6b.Although connected entrance 5 is conducive to being dried gas entrance the first hothouse 6a below demarcation strip 4, the chance contacted with mud with increase, but after mud to be dried is thrown in and is deposited in from charging aperture 8 on the demarcation strip 4 in first hothouse 6a, along with the effect stirring and being dried gas stirring assembly 702a, 702b of turning device 7a, 7b, some mud may be had to be dropped from the first hothouse 6a by connected entrance 5 or leak in secondary drying chamber 6b.In order to avoid mud deposits, base plate 4a forms clean-up port 15a to be discharged from secondary drying chamber 6b by mud.Housing is lifted away from ground by support means and makes base plate 4a distance ground a certain distance h, in order to removed below housing by mud.In another embodiment, the optional position on the circumferential wall including sidewall and end wall of the lower part that clean-up port 15a can be arranged on the body 2 on base plate 4a or ground, namely the optional position of the circumferential wall of secondary drying chamber 6b.Leak into the dry gas that the mud in secondary drying chamber 6b can be entered in secondary drying chamber 6b to be dried again or redrying, to reduce the moisture content of mud further.Alternatively, it is also possible to form discharge port on the sidewall of the lower part of body 2 and block the demountable panel of discharge port.Once in secondary drying chamber 6b, mud is too much, then can take off demountable panel by sludge removal, thus the flowing being dried gas in ensureing secondary drying chamber 6b is unobstructed.In order to keep the opposing seal of secondary drying chamber 6b, sideboard can be set at the 15a of clean-up port, not leak so that being dried gas, and when discharging mud, sideboard is opened.
Seeing Fig. 2, mud drying device 1 is additionally included in the air-blast device 12 not shown in Fig. 1, and wherein, air-blast device 12 connects with secondary drying chamber 6b with gas feed 15 through pipeline 12a, in order to be blown in secondary drying chamber 6b by dry gas.Equally, mud drying device 1 can also include blower unit 13, and wherein, blower unit 13 connects with the first hothouse 6a with air vent 10 through pipeline 13a.The dry gas being transported in secondary drying chamber 6b can be such as the dry medium such as hot gas, gas, hot-air, gas at normal temperature or frozen gas containing chemical substance, it is also possible to is the dry medium of formulated.Air-blast device 12 can be used to improve dry gas and flows into the speed in secondary drying chamber 6b, and blower unit 13 can accelerate the tail gas outflow from the first hothouse 6a.Typically, air-blast device can be aerator or fan, and blower unit can be air-introduced machine.Alternatively, it is also possible to substitute air-blast device 12 with pressurizer, so that dry gas is transported to secondary drying chamber 6b with certain pressure, accelerate to flow into the first hothouse 6a so that being dried gas.Equally substitute the blower unit 13 flowing with quickening tail gas with decompressor, thus improve sludge drying efficiency.
In order to accelerate being dried of mud, the dry gas being transported in secondary drying chamber 6b can be heated.Heater (not shown) can be provided separately within upstream position or the downstream position of air-blast device, it is also possible to integrates with air-blast device.Mud therein can also be dried again in the dry gas of heating is transported to secondary drying chamber 6b by air-blast device or pressurizer.At the dry gas of heating to dropping or leaking into while the mud in secondary drying chamber 6b carries out redrying, a part of heat therein can also be passed to, by body 2 that metal material is made and demarcation strip 4, the mud that is laid on demarcation strip 4, so that the mud in the first hothouse 6a to play the effect of auxiliary mummification.
As shown in figures 2 and 5, two turning devices 7a, 7b are configured to multiple first and stir assembly 702a and multiple second and stir assembly 702b respectively in respective rotary shaft, namely it is arranged spaced apart in the first rotary shaft 701a and the second rotary shaft 701b, wherein, in each rotary shaft to stir assembly 702a, 702b corresponding with corresponding one group of connected entrance 5.The first hothouse 6a is entered from secondary drying chamber 6b in order to make dry gas move smoothly through connected entrance 5, can stir assembly 702a, 702b of turning device 7a, 7b be dimensioned correspondingly to when stirring assembly 702a, 702b and rotating together along with rotary shaft 701a, 701b, the mud near connected entrance 5 can be struck off in one part neighboring.Can the length of the one or more blades stirred on assembly 702a, 702b of turning device 7a, 7b or ratchet be defined as when stirring assembly 702a, 702b and rotating together along with rotary shaft 701a, 701b especially, the mud in connected entrance 5 can be struck off in the front end of relatively linear leaf or ratchet or near it.In other words, at least one stirred in assembly 702a, 702b multiple stir assembly can have at least one for the relatively linear leaf or the ratchet that strike off mud, wherein, in the front end of relatively linear leaf or ratchet can be insinuated into a part of connected entrance 5 or close to connected entrance 5, and the shape design of connected entrance 5 becomes to avoid interfering with the front end of relatively linear leaf or ratchet.Need not one_to_one corresponding with the quantity stirring assembly 702a and 702b of relatively linear leaf or ratchet and the quantity of connected entrance 5.As shown in Figure 5, multiple stir in assembly 702a, 702b each stir assembly 702a, 702b in the face of a connected entrance 5 with relatively linear leaf or ratchet, so that the mud in connected entrance 5 can be struck off in the front end of relatively linear leaf or ratchet or near it, so that it is dried gas to enter into the first hothouse 6a by connected entrance 5.In addition to the effect of striking off, these with compared with linear leaf or ratchet stir assembly 702a, 702b can with relatively short blade or ratchet stir assembly 702a, 702b as, play shear, broken and stir the effect of mud.It addition, multiple on rotary shaft 701a, a 701b stir in assembly 702a, 702b with relatively linear leaf or ratchet stir assembly and the assembly that stirs with relatively short blade or ratchet can be along rotary shaft interlaced arrangement each other.In another embodiment, the assembly that stirs of the blade with different length in a rotary shaft or ratchet can be as required with different arrangement pitch layouts.Such as, a rotary shaft plural stirs assembly with relatively short blade or ratchet with stirring compared with the two of linear leaf or ratchet to arrange between assembly, or arrange in the opposite manner, in any case arrange with stirring assembly and all should make corresponding with connected entrance compared with the front end of linear leaf or ratchet compared with linear leaf or ratchet.
In another embodiment, as it is shown on figure 3, scraped parts 704c1 or 704c2 can be arranged in the front end of the blade or ratchet 703c1 or 703c2 that stir assembly 702c1 or 702c2.The blade on assembly 702c1 or 702c2 can be stirred as depicted or ratchet 703c1 or 703c2 has identical length, wherein, the front end of some blades or ratchet arranges scraped parts 704c1 or 704c2, and the front end of other relatively linear leafs or ratchet can be used as scraper.The front end using scraped parts 704a or 704b which kind of form all should make to be fixed on blade or ratchet is corresponding with connected entrance 5.Additionally, stir the relatively linear leaf of assembly or ratchet or the front end of scraped parts that is fixed on blade or ratchet all in the face of connected entrance, so that when sweeping compared with the front end of linear leaf or the front end of ratchet or scraped parts both can be insinuated in connected entrance can also on connected entrance inswept, in order to the mud in striking off connected entrance or near it.Stir assembly can also be arranged to be offset slightly from connected entrance, in order to it is compared with the front end of linear leaf or the front end of ratchet or scraped parts a part of width of the most inswept connected entrance when sweeping, thus only strikes off a part of mud near connected entrance.Seeing Fig. 5, assembly 702a, 702b are existing has again shorter blade or ratchet 703a, 703b compared with linear leaf or ratchet 703a, 703b for stirring of being exemplarily illustrated in rotary shaft 701a, 701b of turning device 7a, 7b.In fig. 7 it is shown that the mud in the connected entrance 5 of flat demarcation strip 4 is being struck off in the front end of the relatively linear leaf or ratchet 703 stirring assembly 702.Owing to rotary shaft 701a, the 701b of turning device 7a, 7b be arranged in parallel relative to the longitudinal direction G of housing, therefore, the tangential direction of circular trace of the rotation stirring assembly 702a, 702b of turning device 7a, 7b is intersected with the length direction of connected entrance, is preferably mutually perpendicular to.
In turning device 7a, 7b of two interlaced arrangement each other, first in the first rotary shaft 701a stirs the front end of assembly 702a and stirs between assembly 702b close to the second rotary shaft 701b and at two adjacent second, otherwise and the most such.The most both shortened the distance between axles between the first rotary shaft 701a and the second rotary shaft 701b, and also avoided first to stir assembly 702a and second and stir appearance interference between assembly 702b.In another embodiment, adjacent in same rotary shaft is with relatively linear leaf or ratchet or is provided with the blade of scraping member or of ratchet stirs assembly and stirs assembly with of relatively short blade or ratchet and can form one group, and the often group that first in rotary shaft 701a stirs the often group in assembly 702a and the second rotary shaft 701b and stirs the interlaced layout of assembly 702b so that a group in the first rotary shaft 701a stirs the assembly 702a adjacent two group in the second rotary shaft 701b and stirs between assembly 702b.Stir assembly configuration combination on the rotating shaft and can use various forms, no longer enumerate at this, but any one stirs assembly arrangement form on the rotating shaft all it should be guaranteed that to stir assembly 702a, 702b corresponding with connected entrance 5, particularly ensure the most relatively linear leaf stirring assembly or ratchet or the front end face of scraping member 704a, 704b installed on blade or ratchet to connected entrance 5 so that the mud in relatively linear leaf or ratchet or scraped parts 704a, 704b can strike off connected entrance 5 or near it.Additionally, it is not limited to use two turning devices 7a, 7b in the first hothouse 6a, can be as required, in the first hothouse 6a, one or more turning device is set, and on demarcation strip, form the group of corresponding connected entrance, and multiple assemblies that stir of each two turning device in multiple turning device can interlaced with each other be arranged, to save space, and each relatively linear leaf stirring assembly or the front end of ratchet or scraped parts 704a, 704b of being fixed on blade or ratchet are corresponding with connected entrance 5 respectively.
As it can be seen, rotary shaft 701a of the first turning device 7a and the second turning device 7b with can be respectively equipped with the power input being connected with actuating device (not shown) on one end of 701b.By external impetus device drives actuating device, and actuating device drives rotary shaft 701a and 701b to rotate successively.Such as, the such as gear of the power input in rotary shaft 701a and 701b or belt pulley 18a, and by actuator drives rotary shaft 701a and 701b, thus another rotary shaft can be driven to rotate.First rotary shaft 701a and the second rotary shaft 701b both can rotate the most in the opposite direction, it is also possible to rotate the most in the same direction.
Fig. 8-10 shows another preferred embodiment of the bottom dry type mud drying device of the present invention, the form that wherein demarcation strip is in curved surface.Using the parts of phase same-action due to this improved plan with embodiment above and represent by same or analogous reference, therefore, the structure for same or like parts repeats no more with acting on applicant, only describes different part.
See Fig. 1-4, when using flat or that there is flat upper surface demarcation strip, the mud being deposited on demarcation strip 4 along with turning device 7a, 7b in the first hothouse 6a the shearing stirring assembly 702a, 702b, stir and the region of the broken joint portion more or less can deposited between the top of body 2 and demarcation strip 4, blade or ratchet are difficult to arrive these positions, thus have impact on the efficiency of mud drying device.Therefore, the upper surface of demarcation strip is designed to curved surface contribute to reducing mud alluvial in the first hothouse 6a.Fig. 8 and 9 shows the part isometric schematic diagram of another embodiment of the bottom dry type mud drying device of the demarcation strip with curved surface, wherein, there is shown the structure of the first hothouse and the turning device being provided with.As it can be seen, demarcation strip is twisted plate, and in another embodiment, demarcation strip can be the plate with recessed upper surface.In fig. 8, the demarcation strip 4 of bending or curved surface has two recessed portions, namely from the first hothouse 6a towards the downward projection of part of secondary drying chamber 6b, in other words, the first hothouse 6a has the bottom of indent.Owing to demarcation strip 4 shows as being bent downwardly or having reclinate upper surface on cross section, thus, demarcation strip is shown as recessed area at the longitudinal direction G of housing, and in other words, the bottom of the first hothouse 6a has recessed area.As it can be seen, the demarcation strip 4 of curved surface is recessed towards the region of each turning device of two turning devices 7a, 7b, the most each recessed area is corresponding with stirring assembly 702a or 702b, and recessed area can be circular arc.Generally being sized to from the axis of rotary shaft to distance r on the top of the blade or the blade of ratchet or longer or ratchet stirring assembly less than being bent downwardly or the radius of part of lower arcs of recesses, as hole 201a, 201b of the installation rotary shaft on end wall can limit the axis distance to the top of the blade or ratchet stirring assembly of rotary shaft of demarcation strip of curved surface of turning device.See Fig. 8, in two recessed area of the first hothouse 6a, be respectively disposed with the multiple connected entrances 5 being separated from each other certain distance along housing longitudinal direction G, and each recessed area be provided above turning device 7a, a 7b.The spacing distance that each turning device 7a, 7b multiple stir between two adjacent connected entrances of the adjacent distance stirring between assembly of each two in assembly 702a, 702b and corresponding multiple connected entrances 5 is roughly equal.Figure 10 shows that the blade stirring assembly of turning device or ratchet are in the recessed area of the bottom of the first hothouse 6a, wherein, the axis of rotary shaft to distance r on the top of the blade or ratchet 703 stirring assembly less than the radius R of circular arc recessed area of bottom.It is understandable that, when by the rotary shaft of turning device or be used for the hole installing rotary shaft adjust on the vertical direction of housing time, the axis of rotary shaft will change to distance r on the top of the blade or ratchet stirring assembly, therefore, the length by selecting blade or ratchet determine the top of blade or ratchet be positioned at connected entrance or near connected entrance above.Hole formation formula can also be formed in the circular arc recessed area of demarcation strip and substitute connected entrance, the array of multiple little through hole 5a compositions can be arranged on a plate and is arranged at connected entrance by plate afterwards, can also the position of connected entrance formed Kong Zhen, and the shape of Kong Zhen can with above-mentioned connected entrance variously-shaped as.Preferably, the size of Kong Zhen may determine that as striking off within the scope of mud on the top of blade or ratchet.
In another embodiment, two turning devices 7a, 7b being arranged side by side can also use the form of upper and lower layout, in hole 201a and 201b that the upper and lower position of the opposite end walls that two rotary shafts 701a, the two ends of 701b can be separately positioned on the first hothouse 6a is formed.
Figure 11 shows another preferred embodiment of the bottom dry type mud drying device of the present invention.Two the first hothouse 6a1 and 6a2 it are provided with in mud drying device, wherein, one the first hothouse 6a1 utilizes the demarcation strip 4a1 of plane as bottom, and another first hothouse 6a2 utilizes the demarcation strip 4a2 of curved surface as bottom, and is respectively equipped with turning device 7a1 and 7a2 in them.Two the first hothouse 6a1 with 6a2 are connected with secondary drying chamber 6b by connected entrance 5a1 with 5a2 on respective demarcation strip 4a1 with 4a2 respectively.Equally, it would however also be possible to employ first hothouse is set and makes it be interconnected by connected entrance with Liang Ge secondary drying chamber.Certainly, those skilled in the art will envision that the structural form of dry type mud drying device bottom other, do not repeat them here.
See Fig. 1 and 2, it is possible to use the bottom dry type mud drying device 1 of the monomeric form of the present invention carries out drying and other treatment to mud.Along with mud to be dried is sent in the first hothouse 6a by unshowned conveyer device, external impetus equipment drives rotary shaft to rotate by actuating device and power input, and then drive is stirred assembly and rotated.Each blade or the ratchet that stir assembly constantly stir mud.Stir assembly shear continuously, broken and while stirring mud, stir at least one relatively linear leaf of assembly or the front end of ratchet or the front end of scraped parts that is arranged on blade or ratchet continuously or intermittently will strike off connected entrance in or mud near it.Air-blast device 12 feeds dry gas into secondary drying chamber 6b through pipeline 12a and air inlet 15.The flowing velocity being dried gas entrance secondary drying chamber 6b is associated with air supply velocity.Stir the relatively linear leaf of assembly or the front end of ratchet or the front end of scraped parts that is arranged on blade or ratchet striking off of the mud in connected entrance 5 or near it is promoted dry gas and to the desiccation of the bottom of the mud near connected entrance 5 and be conducive to being dried gas and enter the first hothouse 6a, wherein, the flow direction substantially tangential direction with relatively linear leaf or the front end of ratchet or the rotational trajectory of the front end of the scraped parts being arranged on blade or ratchet of the dry gas entering the first hothouse 6a at connected entrance 5 is mutually perpendicular to, thus be dried gas and be prone to contact with the mud in the first hothouse 6a.Along with stirring the blade of assembly or the ratchet shearing to mud, broken and stir and be dried the gas desiccation to mud in the first hothouse 6a, the granularity of mud tapers into and powder, thus the degree of drying of mud also improves constantly.After completing being dried of mud, it is dried gas be fed in air by the blower unit 13 air vent 10 and pipeline 13a through being positioned at the top of the first hothouse 6a or gas handling system is to carry out subsequent treatment.Significantly reduce through its moisture content of dried mud and discharge from discharging opening 9.
Particularly when using the demarcation strip of curved surface, owing to the circular arc configuration of the recessed area near rotational trajectory and the connected entrance 5 of demarcation strip 4 on the top stirring assembly of turning device is close, therefore, stir the relatively linear leaf of assembly or the front end of ratchet or the front end of scraped parts that is arranged on blade or ratchet is easier to when skimming over connected entrance 5 remove the mud near connected entrance 5, and the mud being stripped off is also easier to fall back near connected entrance along the recessed arc-shaped profile of demarcation strip, thus improve mud stir and be dried the frequency that gas contacts with mud.
Dropped from the first hothouse 6a by connected entrance 5 to clear up or leak into the mud secondary drying chamber 6b, the sideboard at the 15a of clean-up port can be opened in good time, by means of the dry gas in secondary drying chamber 6b, mud being discharged from clean-up port 15a.If mud is piled up too much, by opening the demountable panel on the sidewall of secondary drying chamber 6b, mud can be removed by discharge port, thus in ensureing secondary drying chamber 6b, be dried the smooth outflow of gas.
Hot drying gas is generally used to be dried mud in the bottom dry type mud drying device of monomeric form, thus, heating devices heat can be passed through, and be transported to in secondary drying chamber 6b by the dry gas of heat by air-blast device, or use the dry gas that carried by air-blast device through the form of heater.
In addition, as shown in Figure 1, in order to be favorably improved the drying effect of mud, advantageously, charging aperture 8 on lid 3 is arranged close to one end of housing, and discharging opening 9 is positioned at the other end of housing, and air vent 10 is arranged on one end identical with charging aperture 8, and, turning device 7a, 7b employing is a kind of not only stirs mud but also make mud turning device of movement on the longitudinal direction G of housing.When mud to be dried is transported to the first hothouse 6a from charging aperture 8 and is laid on demarcation strip 4, along with entering the dry gas of the first hothouse 6a through connected entrance 5 from secondary drying chamber 6b, mud is continued drying out effect and the tipping effect of turning device 7a, 7b, the moisture content of mud can be gradually lowered, and mud is also progressively pushed to discharging opening 9 while stirring mud by turning device 7a, 7b.Therefore, the driest the closer to the mud of discharging opening 9, and be dried gas and when connected entrance 5 enters the first hothouse 6a, just become more smooth and easy in its vicinity.And, the dry gas near discharging opening 9 after mud can also along the longitudinal direction G of housing by discharging opening to charging aperture to generation desiccation above mud, thus, extend the time of contact of dry gas and mud.
Although list in this application multiple preferred embodiment, but the present invention is not limited only to the content arrived mentioned by description, those skilled in the art completely can be changed by all parts in the above-mentioned design philosophy of the present invention bottom dry type mud drying device to the present invention or device and be retrofited, and these changes or remodeling are all within the concept of the present invention.
Claims (19)
1. a bottom dry type mud drying device, described mud drying device includes:
Housing, wherein, is formed with one or more first hothouse and at least one secondary drying chamber, and is provided with at least one demarcation strip between the one or more first hothouse and at least one secondary drying chamber described in described housing；
It is arranged on the charging aperture for mud to be dried on the top of the one or more the first hothouse and for discharging the air vent of the dry gas being dried mud, and the discharging opening for dried mud being arranged on the circumferential wall of the one or more the first hothouse；
At least one air inlet of the dry gas for mud to be dried on the circumferential wall of at least one secondary drying chamber described in being arranged on or bottom；
At least one connected entrance being formed on described demarcation strip；
At least one the mud turning device being arranged in described first hothouse, wherein, at least one mud turning device described includes rotary shaft and at least one being fixed in described rotary shaft stirs assembly, wherein, described at least one stir assembly be dimensioned correspondingly to its can shear, broken and stir mud, and its top end face to and near at least one connected entrance described, in order to when described at least one stir in when assembly rotates with described rotary shaft, at least one connected entrance described can be struck off in described top or neighbouring mud.
Mud drying device the most according to claim 1, it is characterised in that the upper surface of described demarcation strip is plane or curved surface in described first hothouse.
Mud drying device the most according to claim 1 and 2, it is characterized in that, the demarcation strip of described curved surface region of at least one mud turning device described faced by the first hothouse has recessed portion, and at least one connected entrance described is formed at described recessed portion.
4. according to the mud drying device according to any one of claim 1-3, it is characterised in that the described recessed portion of the demarcation strip of described curved surface is arc.
5. according to the mud drying device according to any one of claim 1-4, it is characterized in that, at least one mud turning device described described at least one stir assembly there is at least one blade or ratchet extended radially outwardly from described rotary shaft, to shear, broken and stir mud.
6. according to the mud drying device according to any one of claim 1-5, it is characterised in that at least one connected entrance described on described demarcation strip has well-regulated shape.
7. according to the mud drying device according to any one of claim 1-6, it is characterised in that at least one connected entrance described on described demarcation strip has irregular shape.
8. according to the mud drying device according to any one of claim 1-7, it is characterized in that, described at least one stir assembly there is at least one the longer blade or ratchet extended radially outwardly from described rotary shaft, wherein, the front end of at least one longer blade described or ratchet can be struck off or part strikes off the mud that at least one connected entrance described is interior or neighbouring.
9. according to the mud drying device according to any one of claim 1-8, it is characterized in that, described at least one stir assembly there is at least one blade or ratchet extended radially outwardly from described rotary shaft, wherein, the front end being arranged on the scraped parts at least one blade described or ratchet can be struck off or partly strike off the mud that at least one connected entrance described is interior or neighbouring.
10. according to the mud drying device according to any one of claim 1-9, it is characterized in that, at least one mud turning device described includes the multiple mud turning devices be arrangeding in parallel, wherein, each in the plurality of mud turning device has and multiple stirs assembly, and the plurality of at least one stirred in assembly stir assembly and have the one or more blades or ratchet extended radially outwardly from described rotary shaft, and at least one connected entrance includes multiple connected entrance, wherein, the one or more blade or the front end of ratchet or the front end of the scraped parts on blade or ratchet is installed can be in the face of the corresponding connected entrance of the plurality of connected entrance, with in striking off described connected entrance or neighbouring mud.
11. according to the mud drying device according to any one of claim 1-10, it is characterized in that, in at least two mud turning device of the plurality of mud turning device, each mud turning device includes multiple stirring assembly, and the plurality of assembly that stirs includes stirring assembly and stirring assembly with shorter blade or ratchet with longer blade or ratchet, wherein, described compared with linear leaf or the front end of ratchet or in installing the plurality of connected entrance of front end scraped of the scraped parts on blade or ratchet or neighbouring mud.
12. according to the mud drying device according to any one of claim 1-11, it is characterized in that, one of them turning device in described at least two turning device have longer blade or ratchet stir assembly and another turning device there is shorter blade or ratchet stir assembly interlaced arrangement relative to each other, wherein, in described longer blade or the front end of ratchet or the scraped parts that are arranged on described front end strike off multiple connected entrance or neighbouring mud.
13. according to the mud drying device according to any one of claim 1-12, it is characterised in that it also includes air-blast device, and wherein, described air-blast device connects with described secondary drying chamber through at least one air inlet described.
14. according to the mud drying device according to any one of claim 1-13, it is characterised in that it also includes that the heater for heat drying gas, wherein said heater are positioned at upstream or the downstream of described air-blast device.
15. according to the mud drying device according to any one of claim 1-14, it is characterised in that it also includes blower unit, and wherein, described blower unit connects with described first hothouse through described air vent.
The sludge drying method of 16. 1 kinds of mud drying devices used according to any one of the claims, said method comprising the steps of:
By the charging aperture for mud to be dried being provided above at housing, mud is sent in the first hothouse；
Utilize at least one of at least one mud turning device being arranged in described first hothouse to stir assembly rotate around rotary shaft and stir mud so that at least one top stirring assembly described is struck off on the demarcation strip between described first hothouse and secondary drying chamber at least one connected entrance of formation or near mud；
Make to be dried gas and enter described secondary drying chamber by least one air inlet of the dry gas for being dried mud；And
By the dry gas being dried mud and the mud that is dried respectively by the air vent being used for the dry gas of dewatered sludge of described first hothouse and the discharging opening discharge of the mud after being used for mummification；And
The mud dropped to by least one connected entrance described in described secondary drying chamber is removed from the clean-up port being used for clearing up mud.
17. sludge drying methods according to claim 16, it is characterised in that its step also including blowing dry gas: blow dry gas by air-blast device and can make to be dried gas at least one air inlet described enters described secondary drying chamber.
18. according to the sludge drying method described in claim 16 or 17, it is characterized in that, it also includes the step of heat drying gas: described dry gas is transported to heater, and wherein, described heater is to entering described air-blast device or leaving the dry gas of described air-blast device and heat.
19. according to the sludge drying method according to any one of claim 16-18, it is characterised in that its step also including drawing dry gas: by blower unit, from described air vent, the dry gas after dry mud is drawn described first hothouse.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006486.4A CN105819649B (en) | 2015-01-07 | 2015-01-07 | Bottom drying type sludge drying device and method |
| PCT/CN2015/100115 WO2016110222A1 (en) | 2015-01-07 | 2015-12-31 | Bottom-drying sludge drying device and method |
| TW105100064A TW201641446A (en) | 2015-01-07 | 2016-01-04 | Bottom-drying sludge drying device and method |
| HK16110792.1A HK1222640A1 (en) | 2015-01-07 | 2016-09-13 | Bottom drying type sludge drying device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006486.4A CN105819649B (en) | 2015-01-07 | 2015-01-07 | Bottom drying type sludge drying device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105819649A true CN105819649A (en) | 2016-08-03 |
| CN105819649B CN105819649B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510006486.4A Active CN105819649B (en) | 2015-01-07 | 2015-01-07 | Bottom drying type sludge drying device and method |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105819649B (en) |
| HK (1) | HK1222640A1 (en) |
| TW (1) | TW201641446A (en) |
| WO (1) | WO2016110222A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113581890A (en) * | 2021-08-09 | 2021-11-02 | 精创环保设备(温州)有限公司 | Automatic uniform distribution device of matched belt type drying machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849103A (en) * | 2019-10-25 | 2020-02-28 | 路德环境科技股份有限公司 | Rotary drum for drying high-humidity high-viscosity materials |
| CN110787517B (en) * | 2019-11-28 | 2020-10-30 | 广东吉康环境系统科技有限公司 | Sludge drying pretreatment device |
| TWI723775B (en) * | 2020-02-14 | 2021-04-01 | 格泰綠能科技有限公司 | Box type drying and venting device |
| CN113735404A (en) * | 2020-05-28 | 2021-12-03 | 刘秀秀 | Municipal sludge energy-saving drying device |
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Also Published As
| Publication number | Publication date |
|---|---|
| HK1222640A1 (en) | 2017-07-07 |
| WO2016110222A1 (en) | 2016-07-14 |
| TW201641446A (en) | 2016-12-01 |
| CN105819649B (en) | 2023-08-08 |
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