CN111351326A - Drying device heated by biomass gas - Google Patents
Drying device heated by biomass gas Download PDFInfo
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- CN111351326A CN111351326A CN202010136034.9A CN202010136034A CN111351326A CN 111351326 A CN111351326 A CN 111351326A CN 202010136034 A CN202010136034 A CN 202010136034A CN 111351326 A CN111351326 A CN 111351326A
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- temperature
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- rotary kiln
- kiln
- heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0445—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having conductive heating arrangements, e.g. heated drum wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a drying device heated by biomass gas, which comprises: the rotary device comprises a rotary kiln, the shell is asymmetrically arranged on the outer side of the rotary kiln, the rotary kiln is partially sleeved, a heating cavity is arranged between the outer wall of the rotary kiln and the inner wall of the shell, the shell is sequentially divided into a combustion area, a temperature adjusting area and a heat preservation area along the axial direction of the rotary kiln, the rotary kiln is provided with a combustion area kiln section, a temperature adjusting area kiln section and a heat preservation area kiln section which sequentially correspond to each other, and the heating component comprises a plurality of flame throwers. Like this, drying device treats through using heating element that the drying object carries out the stage formula stoving, not only can use higher temperature to treat in the combustion area that the drying object carries out the stoving of controllable fast, reduce simultaneously and treat the destruction of drying object and prevent that the sticking phenomenon from taking place, two sections temperature regions after moreover treat the drying object and carry out further stoving, the humidity of drying object is treated in reduction that can be further, let the temperature of treating the drying object lower when avoiding drying object and air contact produced performance variation simultaneously.
Description
Technical Field
The invention relates to the technical field of drying, in particular to a drying device heated by biomass gas.
Background
Drying device among the prior art generally adopts disposable stoving, be about to treat that the thing of drying lets in drying device completely and heat, such design is owing to can't monitor the stoving condition when drying, thereby the waste of resource when having caused the stoving, simultaneously owing to adopt a segmentation stoving, the adjustment of the degree of drying can't be carried out according to the state when drying, destroy the physical properties of the thing of drying easily, and it is higher to treat the temperature of the thing of drying after continuously drying, need carry out the heat dissipation and handle the rear and can continue to use.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a drying device heated by using biomass fuel gas, and aims to solve the technical problem of low resource utilization rate of the existing drying device.
The invention provides a drying device heated by biomass gas, which comprises: slewer, shell and heating element, slewer includes the rotary kiln, inject the accommodation space who is used for holding the thing of treating drying in the rotary kiln, the rotary kiln is constructed to rotate along the central axis, the outside at the rotary kiln is established asymmetrically to the shell, the heating chamber is set up between the inner wall of the outer wall of rotary kiln and shell is located to the shell part cover, the combustion area is separated into in proper order to the axial of shell along the rotary kiln, district and the heat preservation district adjust the temperature, the rotary kiln include with the combustion area, the combustion area kiln section that district and heat preservation district correspond in proper order adjusts the temperature, adjust the temperature district kiln section, the heat preservation district kiln section, accommodation space in the adjacent kiln section separates each other, heating element includes a plurality of flame throwers, the flame thrower is installed in the combustion area of shell.
Like this, drying device carries out stage formula stoving through using heating element to the thing of treating drying in the accommodation space, not only can use higher temperature to treat in the combustion area that the thing of drying reduces when carrying out faster stoving and treats the destruction of drying the thing and prevent that the clay pot phenomenon from taking place, two sections temperature regions after moreover treat the thing of drying and carry out further stoving, the humidity of the thing of drying is treated in reduction that can be further, let the temperature of the thing of treating that dries of drying simultaneously lower with avoid drying the thing and the performance change that produces when the air contact, drying efficiency is higher.
In some embodiments, the heating device further comprises a cyclone device, and the cyclone device is at least arranged in the temperature adjusting area to introduce air into the heating cavity corresponding to the temperature adjusting area.
In some embodiments, the rotational flow device includes a fan and an air duct connected to the fan and disposed outside the housing, the air duct includes a main air duct and an air supply duct and an air return duct communicating the main air duct and the heating cavity, and the air supply duct extends into the heating cavity.
In some embodiments, the main air duct is a part of a circular ring, the air supply air ducts are communicated with the main air duct at the inner side of the main air duct, the number of the air supply air ducts is multiple, and the air supply air ducts are all obliquely arranged and have the same inclination direction.
In some embodiments, the inclined angle of the air supply duct is 30-60 degrees.
In some embodiments, the temperature adjusting area and the heat preservation area are also provided with flame spraying heads, the heat preservation area is also provided with a rotational flow device, and the flame spraying heads and the air supply duct are alternately arranged at intervals.
In some embodiments, the main duct has an airflow direction opposite to the direction of rotation of the rotary kiln.
In some embodiments, the outer shell is cylindrical and comprises a lower shell and an upper shell which are arranged oppositely, the upper shell, the lower shell and the rotary kiln are coaxially arranged, and the inner diameter of the lower shell is larger than that of the upper shell.
In some embodiments, the upper and lower housings have the same wall thickness, and the inner diameter of the lower housing is greater than or equal to the outer diameter of the upper housing.
In some embodiments, the air supply duct and the heating assembly of the rotational flow device both extend into the heating cavity through the lower shell, and the air return duct is communicated with the heating cavity through the upper shell.
In some embodiments, the shell is annular, and a plurality of flame throwers are distributed along the circumference of shell, and each flame thrower is arranged along the radial direction of casing, and the flame projecting direction of flame thrower is adjustable.
In some embodiments, the heating chamber comprises: the first heating cavity corresponding to the combustion area, the second heating cavity corresponding to the temperature adjusting area and the third heating cavity corresponding to the heat preservation area are separated from the second heating cavity and communicated with each other, and the second heating cavity and the third heating cavity are separated from each other and communicated with each other.
In some embodiments, the inner wall of shell is equipped with first isolation portion, second isolation portion, and first heating chamber and second heating chamber, second heating chamber and third heating chamber separate through first isolation portion, second isolation portion respectively, and the outer wall of rotary kiln is equipped with: the first flange, the second flange, the third flange, first isolation portion is located between first flange and the second flange and is formed with first drainage channel between the three, and the second isolation portion is located one side of third flange and is formed with the second drainage channel between the two.
In some embodiments, the heating chamber further comprises a temperature controller, and the temperature controller is adapted to detect the temperature in the heating chamber corresponding to the combustion zone, the temperature adjustment zone and the temperature preservation zone.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a drying apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a temperature adjusting section of the drying apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the position of the flame-throwing head of the temperature-adjusting section of the drying device according to the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a combustion section of a drying apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the position of the flame nozzle of the combustion section of the drying apparatus according to the embodiment of the present invention;
reference numerals: the drying device 10, the rotating device 11, the rotary kiln 111, the first flange 1111, the second flange 1112, the third flange 1113, the housing 12, the outer wall 121, the inner wall 122, the combustion zone 123, the combustion zone kiln section 1231, the first heating cavity 1232, the first isolation part 1233, the first drainage channel 1234, the temperature adjusting zone 124, the temperature adjusting zone kiln section 1241, the second heating cavity 1242, the second isolation part 1243, the second drainage channel 1244, the temperature keeping zone 125, the temperature keeping zone kiln section 1251, the third heating cavity 1252, the upper casing 126, the lower casing 127, the heating component 13, the burner head 131, the swirling device 14, the fan 141, the duct 142, the main duct 1421, the air supply duct 1422, the return air duct 1423, and the accommodating space q.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A drying apparatus 10 using biomass gas heating according to an embodiment of the present invention is described below with reference to fig. 1, including: the drying device comprises a rotating device 11, a shell 12 and a heating assembly 13, wherein the shell 12 is arranged on the outer side of the rotating device 11, the heating assembly 13 is arranged on the shell 12, and the heating assembly 13 is used for heating the rotating device 11 and an object to be dried in the rotating device 11.
The rotary device 11 comprises a rotary kiln 111, a containing space q for containing objects to be dried is defined in the rotary kiln 111, the rotary kiln 111 is configured to rotate along a central axis, the outer shell 12 is at least partially sleeved on the rotary kiln 111 at the outer side of the rotary kiln 111, a heating cavity is defined between the outer wall 121 of the rotary kiln 111 and the inner wall 122 of the outer shell 12, the outer shell 12 is sequentially divided into a combustion area 123, a temperature adjusting area 124 and a heat preservation area 125 along the axial direction of the rotary kiln 111, the rotary kiln 111 comprises a combustion area kiln section 1231, a temperature adjusting area kiln section 1241 and a heat preservation area kiln section 1251 which sequentially correspond to the combustion area 123, the temperature adjusting area 124 and the heat preservation area 125, and the containing spaces q in adjacent kiln sections are separated. It can be understood that, because accommodation space q in the adjacent kiln sections is separated from each other, the temperature that each kiln section corresponds can be different like this, namely, each kiln section can be through the efficiency and the mode of adjusting its mode reasonable control object of drying of self temperature, wherein, the temperature of combustion zone kiln section 1231 can be higher than temperature regulation zone kiln section 1241, the temperature of temperature regulation zone kiln section 1241 can be higher than heat preservation zone kiln section 1251, like this each kiln section treats the drying effect of object of drying different, can avoid destroying the material characteristic of material, and also can avoid improving drying efficiency.
The heating assembly 13 includes a plurality of flame-throwers 131, the flame-throwers 131 being mounted at least in the combustion zone 123 of the casing 12, and the flame-throwers 131 extending into the heating chamber. Through installing flame projector 131 in combustion area 123 at least, can effectively guarantee the temperature of combustion area 123 department to can guarantee effectively to dry at combustion area kiln section 1231 and wait to dry the thing. The burner head 131 may burn biomass fuel gas.
Specifically, the temperature of the combustion zone 123 may be 600-900 deg.C, the temperature of the temperature-regulating zone 124 may be 300-600 deg.C, and the temperature of the heat-retaining zone 125 may be 50-300 deg.C. Therefore, the drying device 10 can dry the materials in sections, the combustion area 123 dries the materials in a first step, the damage of high temperature to the materials can be reduced while the materials are dried quickly at higher temperature, the materials enter the temperature adjusting area 124 after passing through the combustion area 123, the temperature of the temperature adjusting area 124 is lower than that of the combustion area 123, the temperature adjusting area 124 dries the materials to be dried in a second step, and the materials to be dried are further dried, meanwhile, the temperature of the object to be dried can be reduced so as to prevent the property of the object to be dried from changing due to the overlarge temperature difference when the object to be dried is directly contacted with the air, after passing through temperature adjustment zone 124, the object to be dried enters heat preservation zone 125, and heat preservation zone 125 further cools down the object to be dried, lets the further air that is close to of the temperature of the object to be dried to guarantee to avoid when the object to be dried can contact with the air performance change.
Like this, drying device 10 carries out stage formula stoving through using heating element 13 to the thing of treating drying in accommodation space q, not only can use higher temperature to treat the thing of drying in combustion area 123 and carry out faster stoving, can also reduce the destruction of treating the thing of drying and prevent that the sticking phenomenon from taking place, and two sections temperature zones after moreover treat the thing of drying and carry out further stoving, the humidity of the thing of drying is treated in the reduction that can be further, let the temperature of the thing of treating that dries of drying of having improved drying efficiency simultaneously less with avoid drying the thing and the produced performance change when contacting with the air, still.
According to an alternative embodiment of the present invention, as shown in fig. 2, the drying device 10 further includes a cyclone device 14, and the cyclone device 14 is at least disposed in the temperature-adjusting region 124 to introduce air into the heating cavity corresponding to the temperature-adjusting region 124. It should be noted that the high-temperature airflow generated by combustion of the fuel gas in the combustion area 123 dries the object to be dried, and meanwhile, the high-temperature airflow enters the temperature adjustment area 124 after being cooled, and is swirled in the temperature adjustment area 124 by the swirling device 14 disposed in the temperature adjustment area 124, so that the object to be dried in the temperature adjustment area 124 is further dried, the heat in the airflow can be further released, and finally, the airflow enters the heat preservation area 125 to transfer the final heat to the rotary kiln 111, and then, the airflow overflows from the heat preservation area 125.
Since the high-temperature airflow generated by combustion in the combustion area 123 is not completely absorbed in the combustion area 123, the airflow is introduced into the temperature adjustment area 124, and the airflow is swirled in the temperature adjustment area 124 by the swirling device 14 arranged in the temperature adjustment area 124, so that the heat in the airflow can be swirled in the temperature adjustment area 124 for multiple times, and the heat carried by the airflow is sufficiently dissipated in the temperature adjustment area 124.
Referring to the embodiment shown in fig. 2, the swirling device 14 includes a fan 141 and an air duct 142 connected to the fan 141 and disposed outside the housing 12, the air duct 142 includes a main air duct 1421, and an air supply duct 1422 and an air return duct 1423 communicating the main air duct 1421 and the heating cavity, and the air supply duct 1422 extends into the heating cavity. Thus, the air supply duct 1422 can introduce high-temperature air into the fan 141, and the rotation of the fan 141 allows the heat in the high-temperature air to be dissipated out of the air through the convolution in the air duct 142, so as to ensure that the temperature in the temperature adjustment area 124 is high, and the cooled air can be dissipated out through the air return duct 1423 and then enter the thermal insulation area 125.
As shown in fig. 2, the main air duct 1421 is a circular ring-shaped portion, the air supply duct 1422 is connected to the main air duct 1421 at the inner side of the main air duct 1421, the air supply ducts 1422 are plural, and the air supply ducts 1422 are all obliquely arranged and have the same inclination direction. Therefore, the circular main air duct 1421 can make the air flow swirl when flowing, so that the heat in the air flow can be sufficiently dissipated after the air flow circulates in the air duct 142 for many times, thereby saving combustion resources, sufficiently utilizing the resources, and improving the utilization rate in the resources. When a plurality of inclined air supply ducts 1422 are used to convey air flow, the air flow of each air supply duct 1422 can be dispersed, and the air supply duct 1422 of each air supply duct 1422, which has the same rotation direction as the rotation direction, can allow the air flow passing through the air supply duct 1422 to have a certain initial speed and direction when entering the main duct 1421, so that heat in the air flow can be better dissipated to the temperature regulation area 124.
In some embodiments, the angle of inclination of the air duct 1422 is 30-60 degrees. Thus, the air supply duct 1422 with a certain inclination angle can make the air flow in the air supply duct 1422 more fit the shape of the main duct 1421 when entering the main duct 1421, and make the air flow in the main duct 1421 have a certain speed, thereby reducing the reduction of heat when the air flow in the air supply duct 1422 enters the main duct 1421.
As shown in fig. 3, the temperature adjusting section 124 and the heat retaining section 125 are also provided with the flame throwers 131, the heat retaining section 125 is also provided with the swirling devices 14, and the flame throwers 131 and the air supply ducts 1422 are alternately arranged at intervals. It should be noted that the positions of the flame thrower 131 and the swirling device 14 in the heat preservation area 125 are substantially the same as the temperature adjustment area 124, and are not described herein again. Therefore, the objects to be dried can be heated and dried by the flame thrower 131 in the temperature adjusting area 124 and the heat preservation area 125, so that the temperature in the temperature adjusting area 124 and the heat preservation area 125 can be controlled, the temperature can be adjusted according to the drying condition of the objects to be dried in the temperature adjusting area 124 or the heat preservation area 125, meanwhile, the cyclone device 14 in the heat preservation area 125 can completely release the heat of the airflow entering the heat preservation area 125, the heat in the airflow of the heat preservation area 125 can be fully utilized, and the energy is saved.
In some embodiments, the main duct 1421 flows in a direction opposite to the direction of rotation of the rotary kiln 111. Thus, not only can the heat possessed by the airflow in the main air duct 1421 be rapidly dissipated into the rotary kiln 111, but also the path through which the airflow in the main air duct 1421 passes when dissipating heat can be reduced, and the energy required for driving the airflow to enter the next kiln section can be saved. Meanwhile, the temperature of the object to be dried and the temperature of the air outlet are controlled by the rotary hot air flow, so that the effects of energy reduction and emission reduction are achieved.
As shown in fig. 1, the outer shell 12 is cylindrical, the outer shell 12 includes a lower shell 127 and an upper shell 126 which are oppositely arranged, the upper shell 126, the lower shell 127 and the rotary kiln 111 are coaxially arranged, and the inner diameter of the lower shell 127 is larger than that of the upper shell 126. Therefore, the lower shell 127 can cover the upper shell 126, so that the formed outer shell 12 can maintain the temperature of the rotary kiln 111, and the temperature of the rotary kiln 111 can be maintained at a stable level. Meanwhile, the asymmetrical heating sealing structure is adopted, so that key heating is highlighted, and the drying speed is increased.
In the embodiment shown in fig. 2 and 4, the upper shell 126 and the lower shell 127 have the same wall thickness, and the inner diameter of the lower shell 127 is greater than or equal to the outer diameter of the upper shell 126. Thus, the lower shell 127 can completely cover the upper shell 126, so that the lower shell 127 can completely cover the upper shell 126 when the shell 12 covers the rotary kiln 111, and the shell 12 can better prevent the heat in the rotary kiln 111 from dissipating, so that the temperature of the rotary kiln 111 becomes higher.
Referring to fig. 2, in the embodiment, the air duct 1422142 of the swirling device 14 and the heating element 13 both extend into the heating cavity through the lower casing 127, and the return air duct 1423 communicates with the heating cavity through the upper casing 126. Therefore, the air flow in the swirling device 14 can enter through the lower air supply duct 1422 and exit through the upper return air duct 1423, which meets the condition that the low-temperature air flow is below the high-temperature air flow, thereby facilitating the exchange of the air flow in the main air duct 1421.
As shown in fig. 2 to 5, the outer shell 12 is annular, a plurality of flame-throwing heads 131 are distributed along the circumferential direction of the outer shell 12, each flame-throwing head 131 is arranged along the radial direction of the outer shell 12, and the flame-throwing direction of the flame-throwing head 131 is adjustable.
The shell 12 comprises refractory bricks, insulating bricks and insulating cotton, so that the shell 12 can be burnt by the flame-throwing head 131 by using fireproof materials on the shell 12, and meanwhile, the heat insulation structure on the shell 12 can prevent heat inside the shell 12 from losing, so that the objects to be dried can be better dried; meanwhile, the direction-adjustable flame thrower 131 is arranged, so that the objects to be dried can control the direction, the firepower and the like of the flame thrower 131 through the drying degree.
In the embodiment shown in fig. 1, the heating chamber comprises: a first heating cavity 1232 corresponding to the combustion zone 123, a second heating cavity 1242 corresponding to the temperature adjustment zone 124, and a third heating cavity 1252 corresponding to the soak zone 125, the first heating cavity 1232 and the second heating cavity 1242 being spaced apart and in communication with each other, and the second heating cavity 1242 and the third heating cavity 1252 being spaced apart and in communication with each other. Therefore, the first heating cavity 1232 can pass through the high-temperature airflow, not only can the heat in the high-temperature airflow be fully dissipated, but also the high-temperature airflow continuously whirling in the first heating cavity 1232 can enable the temperature in the combustion cavity to be rapidly increased, so as to save resources during combustion airflow, and after the temperature in the combustion area 123 reaches the user requirement, the airflow in the first heating cavity 1232 can be introduced into the second heating cavity 1242, and the subsequent processes in the second heating cavity 1242 and the third heating cavity 1252 are substantially the same as the process in the first heating cavity 1232, which is not described herein.
Referring to fig. 1, the inner wall 122 of the housing 12 is provided with a first isolation part 1233 and a second isolation part 1243, the first heating cavity 1232 and the second heating cavity 1242, and the second heating cavity 1242 and the third heating cavity 1252 are separated by the first isolation part 1233 and the second isolation part 1243, respectively, and the outer wall 121 of the rotary kiln 111 is provided with: the first flange 1111, the second flange 1112, and the third flange 1113, the first isolating part 1233 is located between the first flange 1111 and the second flange 1112, and a first drainage channel 1234 is formed therebetween, and the second isolating part 1243 is located at one side of the third flange 1113, and a second drainage channel 1244 is formed therebetween. The first and second isolation portions 1233 and 1243 have an isolation function, and can isolate the first, second and third heating cavities 1232, 1242 and 1252. Like this, form first drainage channel 1234 and second drainage channel 1244 through first flange 1111, second flange 1112 and third flange 1113 and first isolation portion 1233 and second isolation portion 1243 to let first drainage channel 1234 and second drainage channel 1244 can carry out the drainage to the air current in the wind channel 142, and then let the air current can shunt through first drainage channel 1234 and second drainage channel 1244, let the temperature in temperature regulation district 124 and the heat preservation district 125 can be controlled through the quantity of air current, and then can control the temperature in temperature regulation district 124 and heat preservation district 125.
In some embodiments, the drying device 10 further includes a temperature controller adapted to detect the temperature in the heating chamber corresponding to the combustion area 123, the temperature adjusting area 124 and the temperature keeping area 125. Consequently, be equipped with the temperature controller in combustion area 123, temperature regulation district 124 and heat preservation district 125 and can monitor and feed back the temperature in the heating chamber, and then know the temperature in each district section to the user and play the additional role, thereby let the user can be faster know the temperature in each kiln section and can carry out the adjustment of temperature according to the stoving condition of waiting to dry the thing.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. The utility model provides an utilize drying device of living beings gas heating which characterized in that includes:
the rotary device comprises a rotary kiln, wherein a containing space for containing the objects to be dried is defined in the rotary kiln, and the rotary kiln is configured to rotate along a central axis;
the shell is asymmetrically arranged on the outer side of the rotary kiln, the shell is sleeved on the rotary kiln, a heating cavity is arranged between the outer wall of the rotary kiln and the inner wall of the shell, the shell is sequentially divided into a combustion area, a temperature adjusting area and a heat preservation area along the axial direction of the rotary kiln, the rotary kiln comprises a combustion area kiln section, a temperature adjusting area kiln section and a heat preservation area, the combustion area kiln section, the temperature adjusting area kiln section and the heat preservation area are sequentially corresponding to the combustion area, the temperature adjusting area kiln section and the heat preservation area kiln section, and containing spaces in adjacent kiln sections are separated from each;
heating element, heating element includes a plurality of flame throwers, the flame thrower install at least in the combustion area of shell, just the flame thrower stretches into in the heating chamber.
2. The drying device according to claim 1, further comprising a cyclone device, wherein the cyclone device is at least arranged in the temperature adjusting area to introduce air into the heating cavity corresponding to the temperature adjusting area.
3. The drying device of claim 2, wherein the swirling device comprises a fan and an air duct connected to the fan and disposed outside the housing, the air duct comprises a main air duct and an air supply duct and an air return duct communicating the main air duct and the heating chamber, and the air supply duct extends into the heating chamber.
4. The drying device according to claim 3, wherein the main air duct is a part of a circular ring, the plurality of air supply ducts are communicated with the main air duct at an inner side of the main air duct, and the plurality of air supply ducts are obliquely arranged and have the same inclination direction.
5. The drying device of claim 4, wherein the inclined angle of the air supply duct is 30-60 degrees.
6. The drying apparatus of claim 4, wherein the temperature adjusting region and the heat insulating region are also provided with flame-spraying heads, the heat insulating region is also provided with a rotational flow device, and the flame-spraying heads and the air supply duct are alternately arranged at intervals.
7. The drying apparatus as claimed in any one of claims 3 to 6, wherein the air flow direction of the main duct is opposite to the rotation direction of the rotary kiln.
8. The drying device as claimed in any one of claims 3 to 6, wherein the casing is cylindrical and comprises a lower casing and an upper casing which are oppositely arranged, the upper casing, the lower casing and the rotary kiln are coaxially arranged, and the inner diameter of the lower casing is larger than that of the upper casing.
9. The drying apparatus of claim 7, wherein the upper casing and the lower casing have the same wall thickness, and the inner diameter of the lower casing is greater than or equal to the outer diameter of the upper casing.
10. The drying device of claim 8, wherein the air supply duct of the cyclone device and the heating assembly both extend into the heating cavity through the lower housing, and the return air duct is communicated with the heating cavity through the upper housing.
11. The drying device according to any one of claims 1 to 6, wherein the casing is annular, a plurality of the flame-throwing heads are distributed along a circumferential direction of the casing, each of the flame-throwing heads is arranged along a radial direction of the casing, and a flame-throwing direction of the flame-throwing head is adjustable.
12. The drying apparatus of any one of claims 1 to 6, wherein the heating chamber comprises: with the first heating chamber that the combustion zone corresponds, with the second heating chamber that the temperature regulation district corresponds, with the third heating chamber that the heat preservation district corresponds, first heating chamber with the second heating chamber is separated and communicates each other, the second heating chamber with the third heating chamber is separated and communicates each other.
13. The drying device of claim 12, wherein the inner wall of the housing is provided with a first partition and a second partition, the first heating cavity and the second heating cavity, and the second heating cavity and the third heating cavity are separated by the first partition and the second partition, respectively, and the outer wall of the rotary kiln is provided with: the first flange, the second flange, the third flange, first isolation portion is located between first flange and the second flange and is formed with first drainage channel between the three, the second isolation portion is located one side of third flange and is formed with the second drainage channel between the two.
14. The drying device of claim 1, further comprising a temperature controller adapted to detect the temperature in the heating chamber corresponding to the combustion zone, the temperature adjustment zone, and the temperature preservation zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136034.9A CN111351326A (en) | 2020-03-02 | 2020-03-02 | Drying device heated by biomass gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010136034.9A CN111351326A (en) | 2020-03-02 | 2020-03-02 | Drying device heated by biomass gas |
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| CN111351326A true CN111351326A (en) | 2020-06-30 |
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| CN202010136034.9A Pending CN111351326A (en) | 2020-03-02 | 2020-03-02 | Drying device heated by biomass gas |
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| CN201102930Y (en) * | 2007-09-27 | 2008-08-20 | 首钢总公司 | Circular cylinder type drying and cooling screener |
| CN202030707U (en) * | 2011-02-11 | 2011-11-09 | 浙江省林业科学研究院 | Carbonization converter being suitable for fine-particle mass raw material |
| CN204254626U (en) * | 2014-09-04 | 2015-04-08 | 刘洪国 | Portable debirs gasification reaction kettle |
| CN105403009A (en) * | 2015-12-10 | 2016-03-16 | 王光树 | Baking machine |
| CN108087869A (en) * | 2017-12-27 | 2018-05-29 | 杨松 | A kind of recirculating fluidized bed calcination activation turns round coproduction stove |
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2020
- 2020-03-02 CN CN202010136034.9A patent/CN111351326A/en active Pending
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| WO1984000604A1 (en) * | 1982-08-05 | 1984-02-16 | Buss Ag | Uninterruptedly heated rotary drum furnace |
| CN2372642Y (en) * | 1999-04-19 | 2000-04-05 | 桂林地区资源化工厂 | Rotary furnace for aluminium fluoride external heating dewatering drying by wet method |
| CN201102930Y (en) * | 2007-09-27 | 2008-08-20 | 首钢总公司 | Circular cylinder type drying and cooling screener |
| CN202030707U (en) * | 2011-02-11 | 2011-11-09 | 浙江省林业科学研究院 | Carbonization converter being suitable for fine-particle mass raw material |
| CN204254626U (en) * | 2014-09-04 | 2015-04-08 | 刘洪国 | Portable debirs gasification reaction kettle |
| CN105403009A (en) * | 2015-12-10 | 2016-03-16 | 王光树 | Baking machine |
| CN108087869A (en) * | 2017-12-27 | 2018-05-29 | 杨松 | A kind of recirculating fluidized bed calcination activation turns round coproduction stove |
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Application publication date: 20200630 |