WO2023124641A1 - 干燥机用油路结构 - Google Patents

干燥机用油路结构 Download PDF

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WO2023124641A1
WO2023124641A1 PCT/CN2022/132989 CN2022132989W WO2023124641A1 WO 2023124641 A1 WO2023124641 A1 WO 2023124641A1 CN 2022132989 W CN2022132989 W CN 2022132989W WO 2023124641 A1 WO2023124641 A1 WO 2023124641A1
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oil
annular
partition
chamber section
section
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PCT/CN2022/132989
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English (en)
French (fr)
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余子毅
喻坚
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湖南宏工智能科技有限公司
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Publication of WO2023124641A1 publication Critical patent/WO2023124641A1/zh

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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
    • F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems

Definitions

  • the invention relates to the technical field of oil passage structures, in particular to an oil passage structure for a dryer.
  • the dryer is a device used to dry materials.
  • the working principle of the existing dryer is: first, the sealing seat and the outlet of the drying ax are matched to seal the outlet, and the material enters the drying ax from the inlet. Under the agitation of the constantly rotating stirring paddle, the indirect heating of the heat conduction oil in the heating interlayer of the drying ax and the uniform stirring of the stirring paddle, the moisture on the material is vaporized, and then under the action of the vacuum device, the moisture inside the material is evaporated. The moisture is discharged, and after the drying is completed, the discharge port of the drying ax is opened to discharge the material.
  • the purpose of the present invention is to provide an oil circuit structure for a dryer, which can uniformly heat the ax body, has a high heat utilization rate, and is beneficial to improving drying efficiency.
  • the oil passage structure for the dryer includes an ax body, the ax body is provided with a drying chamber and a heat transfer oil chamber, the drying chamber is used to accommodate materials, and the heat transfer oil chamber includes:
  • the first oil chamber section the first oil chamber section is arranged at the bottom of the ax body and below the bottom wall of the drying chamber, the first oil chamber section is provided with an oil inlet, and the oil inlet Used to communicate with the oil temperature machine;
  • the second oil chamber section is arranged on the outer periphery of the ax body and surrounds the inner side wall of the drying chamber;
  • the second oil chamber section includes a plurality of annular oil grooves arranged one by one along the height direction of the ax body, each of the annular oil grooves is provided with an oil groove head end and an oil groove tail end, and the annular oil groove at the bottom end
  • the head end of the oil tank communicates with the first oil cavity section, and the annular oil tank at the top is provided with an oil return port, and the oil return port is used to communicate with the oil temperature machine, and two adjacent annular oil tanks
  • the tail end of the oil groove of the lower one communicates with the head end of the oil groove of the upper one.
  • annular oil grooves are separated by a first partition.
  • a second partition arranged along the height direction of the ax body is also provided in the second oil chamber section, and the second partition divides the oil groove head end and the oil groove tail end of each annular oil groove separated.
  • each of the first partitions is provided with a partition head and a partition tail, each of the partition heads is connected to the second partition, and each of the partition tails is connected to the second partition.
  • the second partitions are arranged at intervals and enclose oil outlet passages, and each of the oil outlet passages communicates with two adjacent annular oil grooves in one-to-one correspondence.
  • first horizontal plates are arranged in the first oil chamber section, each of the first horizontal plates is arranged at intervals, and the upper side of each of the first horizontal plates and the top of the first oil chamber section The walls are against each other, and the lower side of each first horizontal plate is against the bottom wall of the first oil chamber section.
  • the bottom of the ax body is also provided with a plurality of second horizontal plates, the second horizontal plates are located outside the first oil chamber section, each of the second horizontal plates is arranged at intervals, and the first horizontal plates The two horizontal plates are perpendicular or inclined to the first horizontal plate.
  • the ax body includes an inner cylinder and an outer cylinder
  • the inner cylinder is provided with the drying chamber
  • the inner cylinder is inserted into the outer cylinder
  • the bottom outer edge of the inner cylinder extends to the
  • the inner bottom wall of the outer cylinder is connected to and surrounds the first oil chamber section
  • the outer peripheral wall of the inner cylinder and the inner peripheral wall of the outer cylinder form the second oil chamber section
  • the outer cylinder An annular sealing plate is arranged on the top of the inner cylinder, and the annular sealing plate extends radially to connect with the outer peripheral wall of the inner cylinder.
  • the inner cylinder includes a first bottom plate and a first shroud arranged around the outer edge of the first bottom plate, and the first bottom plate and the first shroud are separately arranged.
  • the outer cylinder includes a second bottom plate and a second surrounding plate arranged around the outer edge of the second bottom plate, and the second bottom plate and the second surrounding plate are separately arranged.
  • the ax body is provided with a thermal insulation structure, and the thermal insulation structure is arranged around the heat transfer oil cavity.
  • the heated heat transfer oil enters the first oil chamber section through the oil inlet, and after the first oil chamber section is filled with heat transfer oil, the excess heat transfer oil passes through the annular oil groove at the bottom
  • the head end of the oil tank enters the ring-shaped oil tank.
  • the heat transfer oil always flows from the head end of the oil tank to the tail end of the oil tank, so that the heat transfer oil can traverse each ring-shaped oil tank.
  • the heat conduction oil in the first oil chamber section can evenly heat the bottom wall of the drying chamber, and the heat conduction oil in the second oil chamber section of the multi-stage type can uniformly heat the inner wall of the drying chamber to ensure that the drying chamber is heated evenly.
  • the heat utilization rate is high, which can improve the drying efficiency.
  • the second oil chamber section is a multi-section structure, the structural strength of the ax body is higher and the work reliability is high.
  • Fig. 1 is the schematic structural view of the oil circuit structure of the dryer of the present invention
  • Fig. 2 is an exploded view of the oil circuit structure of the dryer shown in Fig. 1;
  • Fig. 3 is a cross-sectional view of the oil circuit structure for the dryer shown in Fig. 1;
  • Fig. 4 is a cross-sectional view of the A-A direction in the oil passage structure for the dryer shown in Fig. 3;
  • Fig. 5 is a schematic diagram of the internal partial structure of the oil passage structure for the dryer shown in Fig. 1 .
  • ax body 11, drying chamber; 12, heat conduction oil chamber; 121, first oil chamber section; 1211, oil inlet; 1212, oil outlet; 122, second oil chamber section; 1221, ring 12211, the head end of the oil tank; 12212, the tail end of the oil tank; 12213, the oil return port; 13, the first partition; 131, the head end of the partition; 132, the tail end of the partition; 14, the second partition; 15 , oil outlet channel; 16, the first horizontal plate; 17, the second horizontal plate; 18, the inner cylinder; 181, the first bottom plate; 182, the first coaming plate; 19, the outer cylinder; 191, the second bottom plate; 192,
  • the second coaming board 100, the thermal insulation structure; 101, the thermal insulation cylinder; 102, the thermal insulation cotton.
  • the heat conduction oil chamber 12 includes: a first oil chamber section 121, the first oil chamber section 121 is located at the bottom of the ax body 10 and below the bottom wall of the drying chamber 11, the first oil chamber section 121 is provided with an inlet The oil port 1211 and the oil inlet 1211 are used to communicate with the oil temperature machine; the second oil chamber section 122, the second oil chamber section 122 is arranged on the outer periphery of the ax body 10 and arranged around the inner side wall of the drying chamber 11; the second oil chamber The section 122 includes a plurality of annular oil grooves 1221 arranged one by one along the height direction of the ax body 10, each annular oil groove 1221 is provided with an oil groove head end 12211 and an oil groove
  • the heated heat transfer oil enters the first oil chamber section 121 through the oil inlet 1211, and after the first oil chamber section 121 is filled with heat transfer oil, the excess heat transfer oil passes through the The oil tank head 12211 of the annular oil tank 1221 enters the annular oil tank 1221.
  • the heat transfer oil always flows from the oil tank head 12211 to the oil tank tail end 12212, so that the heat transfer oil can Traverse each annular oil groove 1221, and can ensure that the heat transfer oil in each annular oil groove 1221 has uniform heat, wherein, the bottom wall of the drying chamber 11 can be evenly heated by using the heat transfer oil in the first oil chamber section 121, and the multi-stage
  • the heat conduction oil in the second oil chamber section 122 of the formula can evenly heat the inner side wall of the drying chamber 11 to ensure that the drying chamber 11 is evenly heated, the heat utilization rate is high, and the drying efficiency can be improved.
  • the second oil chamber section 122 It is a multi-stage structure, which makes the ax body 10 have higher structural strength and high working reliability.
  • the first oil chamber segment 121 communicates with the oil groove head end 12211 of the annular oil groove 1221 at the bottom end through the oil outlet 1212 .
  • first partition 13 that is, a plurality of first partitions 13 are arranged in the second oil cavity section 122 .
  • the arrangement of the first partition 13 can increase the structural strength of the ax body 10 , with good structural stability and high working reliability.
  • a second partition 14 arranged along the height direction of the ax body 10 in the second oil chamber section 122, and the second partition 14 divides each annular
  • the oil groove head end 12211 and the oil groove tail end 12212 of the oil groove 1221 are separated, so that the heat transfer oil flowing in from the oil groove head end 12211 can flow from the oil groove head end 12211 to the direction of the oil groove tail end 12212, so that each annular oil groove 1221 can It is filled with heat conduction oil to evenly heat the inner wall of the drying chamber 11 .
  • each first partition 13 is provided with a partition head 131 and a partition tail 132, and each partition head 131 is connected to the second partition 14 connected, each partition plate tail end 132 is spaced apart from the second partition plate 14 and encloses an oil outlet channel 15, and each oil outlet channel 15 communicates with each adjacent two annular oil grooves 1221 in one-to-one correspondence.
  • One partition 13 is connected with the second partition 14 , so that the first partition 13 can be reliably installed in the ax body 10 , which is beneficial to further strengthen the structural strength of the ax body 10 .
  • a plurality of first horizontal plates 16 are arranged in the first oil cavity section 121, and each first horizontal plate 16 is arranged at intervals.
  • the top wall of an oil chamber section 121 is against each other, and the lower side of each first horizontal plate 16 is against the bottom wall of the first oil chamber section 121.
  • the setting of the first horizontal plate 16 can further strengthen the structural strength of the ax body 10, so that The ax body 10 has better structural stability and higher working reliability.
  • the bottom of the ax body 10 is also provided with a plurality of second horizontal plates 17, the second horizontal plates 17 are located outside the first oil chamber section 121, and each second horizontal plate 17 are arranged at intervals, and the second horizontal plate 17 and the first horizontal plate 16 are perpendicular or inclined, the setting of the second horizontal plate 17 is conducive to further strengthening the structural strength of the ax body 10, so that the structural stability of the ax body 10 is better, Work reliability is higher.
  • the ax body 10 includes an inner cylinder 18 and an outer cylinder 19, the inner cylinder 18 is provided with a drying chamber 11, the inner cylinder 18 is inserted in the outer cylinder 19, and the bottom outer edge of the inner cylinder 18 It extends to connect with the inner bottom wall of the outer cylinder 19 and encloses the first oil chamber section 121, the second oil chamber section 122 is formed between the outer peripheral wall of the inner cylinder 18 and the inner peripheral wall of the outer cylinder 19, and the top of the outer cylinder 19 An annular sealing plate is provided, and the annular sealing plate radially extends to connect with the outer peripheral wall of the inner cylinder 18.
  • This structure is beneficial to reduce the manufacturing difficulty and assembly difficulty of the ax body 10, thereby improving the assembly efficiency and reducing the cost.
  • the inner cylinder 18 includes a first bottom plate 181 and a first surrounding plate 182 arranged around the outer edge of the first bottom plate 181.
  • the first bottom plate 181 and the first surrounding plate 182 are arranged separately, so that it is more convenient to assemble , higher assembly efficiency.
  • the outer cylinder 19 includes a second bottom plate 191 and a second surrounding plate 192 arranged around the outer edge of the second bottom plate 191.
  • the second bottom plate 191 and the second surrounding plate 192 are arranged separately, so that the assembly is more convenient , higher assembly efficiency.
  • a thermal insulation structure 100 is provided outside the ax body 10, and the thermal insulation structure 100 is arranged around the heat transfer oil chamber 12, so that the ax body 10 has a thermal insulation function and has a higher heat utilization rate.
  • the thermal insulation structure 100 includes a thermal insulation cylinder 101 and thermal insulation cotton 102, the thermal insulation cylinder 101 is sleeved on the outer cylinder 19, and the thermal insulation cotton 102 is arranged between the thermal insulation cylinder 101 and the outer cylinder 19 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

一种干燥机用油路结构，包括斧体(10)，斧体(10)内设有干燥腔(11)及导热油腔(12)，干燥腔(11)用于容纳物料，导热油腔(12)包括第一油腔段(121)，第一油腔段(121)设在斧体(10)的底部并位于干燥腔(11)的底壁下方，第一油腔段(121)设有进油口(1211)，进油口(1211)用于与油温机连通；第二油腔段(122)设在斧体(10)的外周并环绕干燥腔(11)的内侧壁设置；第二油腔段(122)包括沿斧体(10)的高度方向逐一设置的多个环状油槽(1221)，各环状油槽(1221)均设有油槽首端(12211)和油槽尾端(12212)，位于底端的环状油槽(1221)的油槽首端(12211)和第一油腔段(121)连通，位于顶端的环状油槽(1221)设有回油口(12213)，回油口(12213)用于与油温机连通，相邻两个环状油槽(1221)中位于下方一者的油槽尾端(12212)和位于上方一者的油槽首端(12211)连通。该结构能够对斧体(10)进行均匀加热，热利用率高，利于提高干燥效率。

Description

干燥机用油路结构 技术领域
本发明涉及油路结构技术领域，尤其涉及一种干燥机用油路结构。
背景技术
干燥机为用于对物料进行干燥的设备，现有的干燥机的工作原理为：首先使密封座和干燥斧的出料口配合而封闭出料口，物料从进料口进入干燥斧内，在不断转动的搅拌桨的搅拌下，受到干燥斧的加热夹层内导热油的间接加热以及搅拌桨的均匀搅拌作用下，使物料上的水分气化，再在真空装置作用下，将物料内部的水分排出，干燥完毕后，再将干燥斧的出料口打开而将物料排出。
然而，因干燥斧上的加热夹层结构设计不合理，导致无法对干燥斧的内部进行均匀加热，热利用率低，影响干燥机的干燥效率。
发明内容
为了克服现有技术的不足，本发明的目的在于提供一种干燥机用油路结构，其能够对斧体进行均匀加热，热利用率高，利于提高干燥效率。
本发明的目的采用如下技术方案实现：
干燥机用油路结构，包括斧体，所述斧体内设有干燥腔及导热油腔，所述干燥腔用于容纳物料，所述导热油腔包括：
第一油腔段，所述第一油腔段设在所述斧体的底部并位于所述干燥腔的底壁下方，所述第一油腔段设有进油口，所述进油口用于与油温机连通；
第二油腔段，所述第二油腔段设在所述斧体的外周并环绕所述干燥腔的内侧壁设置；
所述第二油腔段包括沿所述斧体的高度方向逐一设置的多个环状油槽，各 所述环状油槽均设有油槽首端和油槽尾端，位于底端的所述环状油槽的油槽首端和所述第一油腔段连通，位于顶端的所述环状油槽设有回油口，所述回油口用于与油温机连通，相邻两个所述环状油槽中位于下方一者的油槽尾端和位于上方一者的油槽首端连通。
进一步地，相邻两个所述环状油槽之间通过第一隔板分隔开。
进一步地，所述第二油腔段内还设有沿所述斧体的高度方向布设的第二隔板，所述第二隔板将各所述环状油槽的油槽首端和油槽尾端分隔开。
进一步地，各所述第一隔板均设有隔板首端和隔板尾端，各所述隔板首端均和所述第二隔板连接，各所述隔板尾端均和所述第二隔板相隔设置并围成出油通道，各所述出油通道一一对应的将各相邻的两个所述环状油槽连通。
进一步地，所述第一油腔段内设有多条第一横板，各所述第一横板相隔设置，各所述第一横板的上侧面和所述第一油腔段的顶壁相抵，各所述第一横板的下侧面和所述第一油腔段的底壁相抵。
进一步地，所述斧体的底部还设有多条第二横板，所述第二横板位于所述第一油腔段的外部，各所述第二横板相隔设置，且所述第二横板和所述第一横板相垂直或相倾斜。
进一步地，所述斧体包括内筒及外筒，所述内筒内设有所述干燥腔，所述内筒插设于所述外筒中，所述内筒的底部外缘延伸至和所述外筒的内底壁连接并围成所述第一油腔段，所述内筒的外周壁和所述外筒的内周壁之间围成所述第二油腔段，所述外筒的顶部设有环状封板，所述环状封板径向延伸至和所述内筒的外周壁连接。
进一步地，所述内筒包括第一底板及围绕所述第一底板的外缘设置的第一围板，所述第一底板和所述第一围板分体设置。
进一步地，所述外筒包括第二底板及围绕所述第二底板的外缘设置的第二围板，所述第二底板和所述第二围板分体设置。
进一步地，所述斧体外设有保温结构，所述保温结构围绕所述导热油腔设置。
相比现有技术，本发明的有益效果在于：
本发明的干燥机用油路结构，经加热后的导热油经进油口进入第一油腔段，第一油腔段被灌满导热油后，多余的导热油经位于底端的环状油槽的油槽首端进入此环状油槽中，在灌满各环状油槽的过程中，导热油始终自油槽首端朝油槽尾端的方向流动，使得导热油能够遍历各环状油槽，其中，利用第一油腔段中的导热油可对干燥腔的底壁进行均匀加热，而利用多段式的第二油腔段中的导热油可对干燥腔的内侧壁进行均匀加热，保证干燥腔受热均匀，热利用率高，能够提高干燥效率，同时，因第二油腔段为多段式结构，使得斧体的结构强度更高，工作可靠性高。
附图说明
图1为本发明的干燥机用油路结构的结构示意图；
图2为图1所示的干燥机用油路结构的分解图；
图3为图1所示的干燥机用油路结构的剖视图；
图4为图3所示的干燥机用油路结构中的A-A方向的剖视图；
图5为图1所示的干燥机用油路结构的内部局部结构示意图。
图中：10、斧体；11、干燥腔；12、导热油腔；121、第一油腔段；1211、进油口；1212、出油口；122、第二油腔段；1221、环状油槽；12211、油槽首端；12212、油槽尾端；12213、回油口；13、第一隔板；131、隔板首端；132、隔板尾端；14、第二隔板；15、出油通道；16、第一横板；17、第二横板；18、 内筒；181、第一底板；182、第一围板；19、外筒；191、第二底板；192、第二围板；100、保温结构；101、保温筒体；102、保温棉。
具体实施方式
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
参见图1-图5，示出了本发明一较佳实施例的一种干燥机用油路结构，包括斧体10，斧体10内设有干燥腔11及导热油腔12，干燥腔11用于容纳物料，导热油腔12包括：第一油腔段121，第一油腔段121设在斧体10的底部并位于干燥腔11的底壁下方，第一油腔段121设有进油口1211，进油口1211用于与油温机连通；第二油腔段122，第二油腔段122设在斧体10的外周并环绕干燥腔11的内侧壁设置；第二油腔段122包括沿斧体10的高度方向逐一设置的多个环状油槽1221，各环状油槽1221均设有油槽首端12211和油槽尾端12212，位于底端(也即位于斧体10底端)的环状油槽1221的油槽首端12211和第一油腔段121连通，位于顶端(也即位于斧体10顶端)的环状油槽1221设有回油口12213，回油口12213用于与油温机连通，相邻两个环状油槽1221中位于下方一者的油槽尾端12212和位于上方一者的油槽首端12211连通。
本发明的干燥机用油路结构，经加热后的导热油经进油口1211进入第一油腔段121，第一油腔段121被灌满导热油后，多余的导热油经位于底端的环状油槽1221的油槽首端12211进入此环状油槽1221中，在灌满各环状油槽1221的过程中，导热油始终自油槽首端12211朝油槽尾端12212的方向流动，使得导热油能够遍历各环状油槽1221，而且能够确保各环状油槽1221内的导热油热量均匀，其中，利用第一油腔段121中的导热油可对干燥腔11的底壁进行均匀加 热，而利用多段式的第二油腔段122中的导热油可对干燥腔11的内侧壁进行均匀加热，保证干燥腔11受热均匀，热利用率高，能够提高干燥效率，同时，因第二油腔段122为多段式结构，使得斧体10的结构强度更高，工作可靠性高。
参见图5，在本实施例中，第一油腔段121通过出油口1212和位于底端的环状油槽1221的油槽首端12211连通。
参见图3，在本实施例中，相邻两个环状油槽1221之间通过第一隔板13分隔开，也即第二油腔段122内设有多块第一隔板13，此第一隔板13的设置能够增加斧体10的结构强度，结构稳定性好，工作可靠性高。
参见图2、图3及图5，在本实施例中，第二油腔段122内还设有沿斧体10的高度方向布设的第二隔板14，第二隔板14将各环状油槽1221的油槽首端12211和油槽尾端12212分隔开，使得自油槽首端12211流入的导热油能够自油槽首端12211朝油槽尾端12212的方向流动，从而能够使各环状油槽1221均被灌满导热油，以对干燥腔11的内侧壁进行均匀加热。
参见图2、图3及图5，在本实施例中，各第一隔板13均设有隔板首端131和隔板尾端132，各隔板首端131均和第二隔板14连接，各隔板尾端132均和第二隔板14相隔设置并围成出油通道15，各出油通道15一一对应的将各相邻的两个环状油槽1221连通，因各第一隔板13均和第二隔板14相连接，能够使第一隔板13可靠安装在斧体10内，利于进一步加固斧体10的结构强度。
参见图3及图4，在本实施例中，第一油腔段121内设有多条第一横板16，各第一横板16相隔设置，各第一横板16的上侧面和第一油腔段121的顶壁相抵，各第一横板16的下侧面和第一油腔段121的底壁相抵，此第一横板16的设置能够进一步加固斧体10的结构强度，使得斧体10结构稳定性更好，工作可靠性更高。
继续参见图3及图4，在本实施例中，斧体10的底部还设有多条第二横板17，第二横板17位于第一油腔段121的外部，各第二横板17相隔设置，且第二横板17和第一横板16相垂直或相倾斜，此第二横板17的设置利于进一步加固斧体10的结构强度，使得斧体10结构稳定性更好，工作可靠性更高。
具体而言，在本实施例中，斧体10包括内筒18及外筒19，内筒18内设有干燥腔11，内筒18插设于外筒19中，内筒18的底部外缘延伸至和外筒19的内底壁连接并围成第一油腔段121，内筒18的外周壁和外筒19的内周壁之间围成第二油腔段122，外筒19的顶部设有环状封板，环状封板径向延伸至和内筒18的外周壁连接，此结构利于降低斧体10的制造难度及装配难度，从而可提高装配效率及降低成本。
在本实施例中，内筒18包括第一底板181及围绕第一底板181的外缘设置的第一围板182，第一底板181和第一围板182分体设置，如此，更方便装配，装配效率更高。
在本实施例中，外筒19包括第二底板191及围绕第二底板191的外缘设置的第二围板192，第二底板191和第二围板192分体设置，如此，更方便装配，装配效率更高。
在本实施例中，斧体10外设有保温结构100，保温结构100围绕导热油腔12设置，以使本斧体10具备保温功能，热利用率更高。
具体而言，在本实施例中，保温结构100包括保温筒体101及保温棉102，保温筒体101套设于外筒19上，保温棉102设置在保温筒体101和外筒19之间。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换 均属于本发明所要求保护的范围。

Claims (10)

  1. 干燥机用油路结构，其特征在于，包括斧体，所述斧体内设有干燥腔及导热油腔，所述干燥腔用于容纳物料，所述导热油腔包括：
    第一油腔段，所述第一油腔段设在所述斧体的底部并位于所述干燥腔的底壁下方，所述第一油腔段设有进油口，所述进油口用于与油温机连通；
    第二油腔段，所述第二油腔段设在所述斧体的外周并环绕所述干燥腔的内侧壁设置；
    所述第二油腔段包括沿所述斧体的高度方向逐一设置的多个环状油槽，各所述环状油槽均设有油槽首端和油槽尾端，位于底端的所述环状油槽的油槽首端和所述第一油腔段连通，位于顶端的所述环状油槽设有回油口，所述回油口用于与油温机连通，相邻两个所述环状油槽中位于下方一者的油槽尾端和位于上方一者的油槽首端连通。
  2. 如权利要求1所述的干燥机用油路结构，其特征在于，相邻两个所述环状油槽之间通过第一隔板分隔开。
  3. 如权利要求2所述的干燥机用油路结构，其特征在于，所述第二油腔段内还设有沿所述斧体的高度方向布设的第二隔板，所述第二隔板将各所述环状油槽的油槽首端和油槽尾端分隔开。
  4. 如权利要求3所述的干燥机用油路结构，其特征在于，各所述第一隔板均设有隔板首端和隔板尾端，各所述隔板首端均和所述第二隔板连接，各所述隔板尾端均和所述第二隔板相隔设置并围成出油通道，各所述出油通道一一对应的将各相邻的两个所述环状油槽连通。
  5. 如权利要求1所述的干燥机用油路结构，其特征在于，所述第一油腔段内设有多条第一横板，各所述第一横板相隔设置，各所述第一横板的上侧面和所述第一油腔段的顶壁相抵，各所述第一横板的下侧面和所述第一油腔段的底 壁相抵。
  6. 如权利要求5所述的干燥机用油路结构，其特征在于，所述斧体的底部还设有多条第二横板，所述第二横板位于所述第一油腔段的外部，各所述第二横板相隔设置，且所述第二横板和所述第一横板相垂直或相倾斜。
  7. 如权利要求1所述的干燥机用油路结构，其特征在于，所述斧体包括内筒及外筒，所述内筒内设有所述干燥腔，所述内筒插设于所述外筒中，所述内筒的底部外缘延伸至和所述外筒的内底壁连接并围成所述第一油腔段，所述内筒的外周壁和所述外筒的内周壁之间围成所述第二油腔段，所述外筒的顶部设有环状封板，所述环状封板径向延伸至和所述内筒的外周壁连接。
  8. 如权利要求7所述的干燥机用油路结构，其特征在于，所述内筒包括第一底板及围绕所述第一底板的外缘设置的第一围板，所述第一底板和所述第一围板分体设置。
  9. 如权利要求7所述的干燥机用油路结构，其特征在于，所述外筒包括第二底板及围绕所述第二底板的外缘设置的第二围板，所述第二底板和所述第二围板分体设置。
  10. 如权利要求1所述的干燥机用油路结构，其特征在于，所述斧体外设有保温结构，所述保温结构围绕所述导热油腔设置。
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