CN103666491A - Rotation bed dry distillation furnace - Google Patents
Rotation bed dry distillation furnace Download PDFInfo
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- CN103666491A CN103666491A CN201310651850.3A CN201310651850A CN103666491A CN 103666491 A CN103666491 A CN 103666491A CN 201310651850 A CN201310651850 A CN 201310651850A CN 103666491 A CN103666491 A CN 103666491A
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Abstract
The present invention discloses a rotation bed dry distillation furnace, which comprises: a furnace body , wherein a hearth is limited in the furnace body, and the furnace body is provided with a material inlet and a material outlet; a material filling plate, wherein the material filling plate is horizontally arranged inside the hearth so as to separate the hearth into the hearth space and the overhead space positioned below the hearth space; a circulation device, wherein the circulation device and the furnace body are adjacently arranged so as to make pyrolysis gas in the hearth circularly flow between the hearth space and the overhead space; and at least a gas distribution structure, wherein the gas distribution structure is obliquely arranged below the material filling plate, the gas distribution structure and the horizontal plane of the material filling plate form an included angle of 30-60 DEG, and the gas distribution structure is provided for uniformly pyrolyzing the material on the material filling plate. According to the rotation bed dry distillation furnace, the gas distribution structure is arranged to make the pyrolysis gas uniformly pass through the material layer in the hearth under the effect of the circulation device, such that the material distributed on the material filling plate is uniformly pyrolyzed so as to obtain the product with the uniform quality.
Description
Technical field
The present invention relates to industrial technology field, especially relate to a kind of rotating bed gas retort.
Background technology
Adopt rotating bed as the pyrolytic technique of the destructive distillation type of furnace, take pyrolysis gas pump circulation in burner hearth to improve material in burner hearth and conduct heat, to improve the output of rotating bed pyrolysis material.At the bottom of traditional rotary hearth furnace, be two dimensional structure, pyrolysis gas pump circulation enters burner hearth from the intake channel of furnace bottom one side, is drawn, thereby realized the forced convection of pyrolysis gas from being positioned at air outlet, material top by recirculation blower.Yet, in this process, along with the drag losses of pyrolysis gas in stove, while arriving the furnace bottom away from one end, air outlet for hydronic pyrolysis gas, gas flow rate and stream pressure all have decline in various degree, the power that causes gas upwards to see through material plate reduces, and the heat of supplying with material on furnace bottom is inconsistent, thereby on furnace bottom, raw material pyrolysis is inhomogeneous.
Summary of the invention
The present invention is intended at least solve one of technical problem existing in prior art.For this reason, one object of the present invention is to propose the rotating bed gas retort that a kind of material is heated evenly.
Rotating bed gas retort according to the embodiment of the present invention, comprising: body of heater, in described body of heater, limit burner hearth, and on described body of heater, there is opening for feed and discharge port; Filler plate, described filler plate is flatly located in described burner hearth and by described burner hearth and is separated into furnace cavity and the overhead space that is positioned at described furnace cavity below; Circulation device, the setting adjacent with described body of heater of described circulation device to circulate the pyrolysis gas in described burner hearth between described furnace cavity and described overhead space; And at least one gas distribution structure, described gas distribution structure be located at obliquely described filler plate below and with described filler plate place horizontal plane between become scope at the angle of 30 °～60 °, described gas distribution structure is in order to by the even pyrolysis of the material on described filler plate.
According to the rotating bed gas retort of the embodiment of the present invention, by gas distribution structure is set, under the effect of circulation device, pyrolysis gas can be passed through equably in burner hearth material bed, thereby make to be distributed in the even pyrolysis of material on filler plate, and then obtain the more product of homogeneous of quality, and in whole process, can realize adjustments of gas flow velocity and stream pressure to pyrolysis gas timesharing, segmentation.In addition, this rotating bed gas retort is simple to operate, reliable, and throughput is strong.
In addition, rotating bed gas retort according to the present invention also can have following additional technical feature:
Further, on described burner hearth, there is intake channel and exhaust channel, wherein said exhaust channel or described intake channel communicate with described furnace cavity, and described intake channel or described exhaust channel communicate with described overhead space and be positioned at the side that described gas distribution structure is lower.Thus, the heat that can effectively guarantee to supply with the material on filler plate is consistent, thereby makes material pyrolysis even.
Alternatively, described gas distribution structure forms inclined-plane or the cascaded surface of inclination.
Further, the below of described gas distribution structure is provided with at least one strut member.Thus, by strut member is set, gas distribution structure is had to certain supporting role.
According to one embodiment of present invention, described circulation device comprises at least one blower fan, described at least one, on blower fan, have air intake path and air-out path, described air intake path and described air-out path communicate with described exhaust channel and the described intake channel of described burner hearth respectively.Thus, by blower fan is set, can realize the forced convection of pyrolysis gas in burner hearth.
Alternatively, described opening for feed and described discharge port each interval on described body of heater is arranged, and described gas distribution structure is that one and a described gas distribution structure extend to described discharge port from described opening for feed in described burner hearth.
Alternatively, described gas distribution structure is to turn up the soil and be located at the below of described filler plate in a plurality of and described a plurality of gas distribution structures space.
According to one embodiment of present invention, on described filler plate, be formed with a plurality of breather holes.Thus, can guarantee passing through smoothly of recirculating air.
Alternatively, described in each, breather hole is circular, and described in each, the diameter of breather hole is 3～5mm, and the distance between the adjacent described breather hole center of circle is 8～10mm.
According to one embodiment of present invention, described filler plate top is provided with radiation tube heater.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the schematic diagram of rotating bed gas retort according to an embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, orientation or the position relationship of the indications such as term " " center ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; rather than the structure of indication or hint indication or element must have specific orientation, with specific orientation structure and operation, so can not be interpreted as limitation of the present invention.In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can particular case understand above-mentioned term concrete meaning in the present invention.
Below with reference to Fig. 1, describe according to the rotating bed gas retort 100 of the embodiment of the present invention, this rotating bed gas retort 100 can be used for pyrolysis raw coal, and in the description below the application, the rotating bed gas retort 100 of take describes as example for pyrolysis raw coal.Certainly, those skilled in that art are appreciated that this rotating bed gas retort 100 only describes as example for pyrolysis raw coal, and are not limited to this, that is to say, according to rotating bed gas retort 100 of the present invention, can need for other material 21 of pyrolysis.
As shown in Figure 1, the rotating bed gas retort 100 according to the embodiment of the present invention, comprising: body of heater 1, filler plate 2, circulation device and at least one gas distribution structure 4.In body of heater 1, limit burner hearth 11, on body of heater 1, there is opening for feed (scheming not shown) and discharge port (scheming not shown).Opening for feed is for treating the material 21 of pyrolysis to the interior infeed of burner hearth 11, discharge port is for discharging the product after pyrolysis.
Further, filler plate 2 tops are provided with radiation tube heater, and particularly, this radiation tube heater is located in furnace cavity 111 and is positioned at the top of the material 21 for the treatment of pyrolysis on filler plate 2.Radiation tube heater comprises radiator tube 6 and burner, and wherein burner is located at the end of radiator tube 6.Alternatively, radiator tube 6 can be adopted and be made of a steel, and radiator tube 6 is linear pattern pipe, U-shaped pipe or W type pipe.
Circulation device setting adjacent with body of heater 1 to circulate the pyrolysis gas in burner hearth 11 between furnace cavity 111 and overhead space 112.That is to say, circulation device is located at outside body of heater 1.In one of them example of the present invention, when body of heater 1 is roughly ringwise time, circulation device can be located at a side at contiguous body of heater 1 center, certainly, the invention is not restricted to this, and circulation device also can be located at the side away from body of heater 1 center.
According to the rotating bed gas retort 100 of the embodiment of the present invention, by gas distribution structure 4 is set, under the effect of circulation device, make pyrolysis gas can in burner hearth 11, pass through equably 21 layers of materials, thereby make to be distributed in the even pyrolysis of material 21 on filler plate 2, and then obtain the more product of homogeneous of quality, and in whole process, can realize adjustments of gas flow velocity and stream pressure to pyrolysis gas timesharing, segmentation.In addition, this rotating bed gas retort 100 is simple to operate, reliable, and throughput is strong.
Alternatively, gas distribution structure 4 forms inclined-plane or the cascaded surface of inclination.That is to say, gas distribution structure 4 can form the plane (plane as shown in Figure 1) being obliquely installed, or forms the cascaded surface (scheming not shown) of stepped-style.
Further, on burner hearth 11, there is intake channel 113 and exhaust channel, intake channel 113 is for to the interior infeed pyrolysis gas of burner hearth 11, exhaust channel is for discharging the gas that material 21 is carried out after pyrolysis, wherein exhaust channel or intake channel 113 are connected with furnace cavity 111, intake channel 113 or exhaust channel are connected with overhead space 112, and intake channel 113 or exhaust channel are positioned at the side that gas distribution structure 4 is lower.In other words, exhaust channel is connected with furnace cavity 111, intake channel 113 is connected with overhead space 112, and intake channel 113 is positioned at the side that described gas distribution structure 4 is lower, or intake channel 113 is connected with furnace cavity 111, exhaust channel is connected with overhead space 112, and exhaust channel is positioned at the side that gas distribution structure 4 is lower.
Particularly, in one of them example of the present invention, when exhaust channel is connected with furnace cavity 111, when intake channel 113 is connected with overhead space 112 and intake channel 113 is positioned at the lower side of described gas distribution structure 4, under the effect of circulation device, pyrolysis gas enters burner hearth 11 from the intake channel 113 of the lower side (left side as shown in Figure 1) of the interior gas distribution structure 4 of overhead space 112, then from bottom to top equably by material bed, then from the exhaust channel being positioned at furnace cavity 111, by circulation device, drawn.In this process, because gas distribution structure 4 is located at the below of filler plate 2 obliquely, distant between one end of the contiguous intake channels 113 of gas distribution structure 4 and filler plate 2, away from one end of intake channel 113 and the close together between filler plate 2, thereby the heat that can effectively guarantee to supply with the material 21 on filler plate 2 is consistent, makes material 21 pyrolysis even.
Certainly, the invention is not restricted to this, in another example of the present invention, when intake channel 113 is connected with furnace cavity 111, when exhaust channel is connected with overhead space 112 and exhaust channel is positioned at the lower side of gas distribution structure 4, under the effect of circulation device, pyrolysis gas enters burner hearth 11 from the intake channel 113 being positioned at furnace cavity 111, then from top to bottom equably by material bed, then from the exhaust channel of the lower side of the interior gas distribution structure 4 of overhead space 112, by circulation device, drawn.
Further, the below of gas distribution structure 4 is provided with at least one strut member 5.Three strut members 5 have for example been shown in the example of Fig. 1, by strut member 5 is set, gas distribution structure 4 have been had to certain supporting role.It will be appreciated that, the quantity of strut member 5 can require to arrange according to practical set, to meet better practical set requirement.Certainly, the invention is not restricted to this, strut member 5 also can not established in the below of gas distribution structure 4.
In one embodiment of the invention, circulation device comprises at least one blower fan 3, has air intake path 31 and air-out path 32 at least one blower fan 3, and air intake path 31 and air-out path 32 communicate with exhaust channel and intake channel 113 respectively.In the example of Fig. 1, on blower fan 3, be respectively equipped with air intake path 31 and air-out path 32, air intake path 31 is connected to draw the pyrolysis gas in burner hearth 11 with exhaust channel, and air-out path 32 is connected with intake channel 113 with to the interior infeed pyrolysis gas of burner hearth 11.Thus, by blower fan 3 is set, can realize the forced convection of burner hearth 11 interior pyrolysis gas.
Alternatively, opening for feed and discharge port each interval on body of heater 1 is arranged, and gas distribution structure 4 is that one and a gas distribution structure 4 extend to discharge port (scheming not shown) from opening for feed in burner hearth 11.That is to say, opening for feed and discharge port space on horizontal plane is arranged, and gas distribution structure 4 can extend to the position of discharge port in burner hearth 11 always from the position of opening for feed.
Certainly, the invention is not restricted to this, gas distribution structure 4 also can be a plurality of and a plurality of gas distribution structures 4 spaces and turns up the soil and be located at the below (scheming not shown) of filler plate 2.Now, can, according to the difference of material 21 present position in rotation gas retort, a plurality of gas distribution structures 4 be correspondingly set.
In one embodiment of the invention, on filler plate 2, can be formed with a plurality of breather holes (scheming not shown).Thus, can guarantee passing through smoothly of recirculating air.
Alternatively, each breather hole is circular, and the diameter of each breather hole is 3～5mm, and the distance between the adjacent breather hole center of circle is 8～10mm.
Certainly, the invention is not restricted to this, in other examples of the present invention, the shape of each breather hole also can be ellipse, Long Circle or is greater than the Polygons on three limits etc.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a rotating bed gas retort, is characterized in that, comprising:
Body of heater, limits burner hearth in described body of heater, has opening for feed and discharge port on described body of heater;
Filler plate, described filler plate is flatly located in described burner hearth and by described burner hearth and is separated into furnace cavity and the overhead space that is positioned at described furnace cavity below;
Circulation device, the setting adjacent with described body of heater of described circulation device to circulate the pyrolysis gas in described burner hearth between described furnace cavity and described overhead space; And
At least one gas distribution structure, described gas distribution structure be located at obliquely described filler plate below and with described filler plate place horizontal plane between become scope at the angle of 30 °～60 °, described gas distribution structure is in order to by the even pyrolysis of the material on described filler plate.
2. rotating bed gas retort according to claim 1, it is characterized in that, on described burner hearth, there is intake channel and exhaust channel, wherein said exhaust channel or described intake channel communicate with described furnace cavity, and described intake channel or described exhaust channel communicate with described overhead space and be positioned at the side that described gas distribution structure is lower.
3. rotating bed gas retort according to claim 1, is characterized in that, described gas distribution structure forms inclined-plane or the cascaded surface of inclination.
4. rotating bed gas retort according to claim 1, is characterized in that, the below of described gas distribution structure is provided with at least one strut member.
5. rotating bed gas retort according to claim 2, it is characterized in that, described circulation device comprises at least one blower fan, described at least one, on blower fan, have air intake path and air-out path, described air intake path and described air-out path communicate with described exhaust channel and the described intake channel of described burner hearth respectively.
6. rotating bed gas retort according to claim 1, it is characterized in that, described opening for feed and described discharge port each interval on described body of heater is arranged, and described gas distribution structure is that one and a described gas distribution structure extend to described discharge port from described opening for feed in described burner hearth.
7. rotating bed gas retort according to claim 1, is characterized in that, described gas distribution structure is to turn up the soil and be located at the below of described filler plate in a plurality of and described a plurality of gas distribution structures space.
8. according to the rotating bed gas retort described in any one in claim 1-7, it is characterized in that, on described filler plate, be formed with a plurality of breather holes.
9. rotating bed gas retort according to claim 8, is characterized in that, described in each, breather hole is circular, and described in each, the diameter of breather hole is 3～5mm, and the distance between the adjacent described breather hole center of circle is 8～10mm.
10. rotating bed gas retort according to claim 1, is characterized in that, described filler plate top is provided with radiation tube heater.
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