WO2017107532A1

WO2017107532A1 - Internal heating ceramic liner rotary furnace

Info

Publication number: WO2017107532A1
Application number: PCT/CN2016/096786
Authority: WO
Inventors: 许开华; 李军秀
Original assignee: 格林美股份有限公司
Priority date: 2015-12-21
Filing date: 2016-08-25
Publication date: 2017-06-29

Abstract

An internal heating ceramic liner rotary furnace, using a ceramic heat conduction layer (10) to separate a stainless steel layer (6) from material, thereby completely preventing volatiles, generated during calcination, from corroding the stainless steel layer (6), and optimizing the calcination quality of the material. A heating unit (5) comprises, from outside inwards in sequence, the stainless steel layer (6), a first insulating brick layer (7), a second insulating brick layer (8), a resistance wire conduit (9) and the ceramic heat conduction layer (10). A heating resistance wire is arranged in the resistance wire conduit (9) and can generate heat after being energized; and the heat is transferred through the ceramic heat conduction layer (10) to heat the material in a roller (2). Since the ceramic heat conduction layer (10) is arranged between the resistance wire conduit (9) and the material, and the heating resistance wire does not directly heat the material, the material is heated uniformly, and the calcination effect of the heating unit (5) for the material is optimized; and the first insulating brick layer (7) and the second insulating brick layer (8) can insulate heat and reduce heat loss.

Description

一种内加热陶瓷内胆回转炉 Internal heating ceramic liner rotary furnace

技术领域 Technical field

[0001] 本发明涉及回转炉领域，具体涉及一种内加热陶瓷内胆回转炉。 [0001] The present invention relates to the field of rotary kiln, and in particular to an internally heated ceramic liner rotary kiln.

背景技术 Background technique

[0002] 回转炉为加热炉的一种，由于其加热过程中可以回转，因此，位于炉内的物料受热均匀，从而使得回转炉在工业中得到广泛的应用。 [0002] Rotary furnace is a kind of heating furnace. Because it can be rotated during heating, the materials located in the furnace are evenly heated, which makes the rotary furnace widely used in the industry.

[0003] 现有技术中锂电池正极材料，钴酸锂及三元材料的煅烧反应均采用推板窑、辊道窑进行煅烧，回转炉应用于锂电池正极材料生产的基本没有，主要问题为，现有技术中的回转炉结构设置不合理，现有技术中的回转炉包括滚筒，在滚筒外固定有对滚筒进行加热的加热单元，而具体煅烧过程中物料位于滚筒内，因此回转炉热量损失大、资源浪费严重；另外现有技术中的回转炉，炉胆采用钛材、不锈钢、高温双相钢等金属材料，物料在回转炉中煅烧吋，产生的挥发性物质对金属材料的炉胆产生腐蚀，影响炉胆的寿命，并且因腐蚀产生的磁性物进入物料，影响产品品质，另外现有技术中的回转炉，炉胆采用钛材、不锈钢、高温双相钢等金属材料，其高温性能不佳，尤其是钛材料使用温度局限有 650 °C以下，即使是高温不锈钢在 800-1200°C之间，也将逐渐氧化，强度降低。技术问题 [0003] In the prior art, the calcination reaction of the lithium battery cathode material, the lithium cobaltate and the ternary material is performed by using a push-plate kiln or a roller kiln, and the rotary furnace is basically applied to the production of the cathode material of the lithium battery. The main problem is The structure of the rotary kiln in the prior art is unreasonable. The rotary kiln in the prior art includes a drum, and a heating unit for heating the drum is fixed outside the drum, and the material in the drum is specifically located in the drum during the calcination process, so the heat of the kiln is The loss is large and the waste of resources is serious. In addition, in the prior art rotary furnace, the furnace is made of a metal material such as titanium, stainless steel, high-temperature dual-phase steel, and the material is calcined in a rotary kiln, and the volatile matter is generated on the furnace of the metal material. The gallbladder is corroded, affecting the life of the furnace, and the magnetic material generated by the corrosion enters the material, which affects the quality of the product. In addition, the rotary furnace of the prior art uses a metal material such as titanium, stainless steel or high-temperature dual-phase steel. Poor temperature performance, especially titanium material temperature limit is below 650 °C, even high temperature stainless steel Between 800 and 1200 ° C, it will also gradually oxidize and reduce the strength. technical problem

[0004] 本发明提供的一种内加热陶瓷内胆回转炉，旨在克服现有技术中的回转炉热量损失大、抗腐蚀性及耐高温性差的不足。 The present invention provides an internal heating ceramic liner rotary furnace, which aims to overcome the disadvantages of the prior art rotary furnace having large heat loss, corrosion resistance and high temperature resistance.

问题的解决方案 Problem solution

技术解决方案 Technical solution

[0005] 为了解决上述技术问题，本发明采用如下技术方案：一种内加热陶瓷内胆回转炉，包括机架，所述机架上转动连接有滚筒，所述滚筒包括预热部，所述滚筒还包括冷却部，在预热部与冷却部之间设有加热部，所述预热部与加热部相通，所述加热部与冷却部相通，所述加热部由外至内依次包括不锈钢层、第一保温砖层、第二保温砖层、电阻丝导管、陶瓷导热层，所述电阻丝导管内设置有加热电阻丝，所述陶瓷导热层上设有扬料板，所述陶瓷导热层位于扬料板与电阻丝导管之间，所述滚筒上还固定有碳刷组件，所述碳刷组件与加热电阻丝电连接。 [0005] In order to solve the above technical problem, the present invention adopts the following technical solution: an internal heating ceramic liner rotary kiln, comprising a frame, the frame is rotatably connected with a drum, the drum comprises a preheating portion, The drum further includes a cooling portion, and a heating portion is disposed between the preheating portion and the cooling portion, the preheating portion is in communication with the heating portion, the heating portion is in communication with the cooling portion, and the heating portion includes stainless steel in order from the outside to the inside. a layer, a first insulating brick layer, a second insulating brick layer, a resistance wire conduit, a ceramic heat conducting layer, and the resistance wire conduit is disposed therein Heating a resistance wire, the ceramic heat conduction layer is provided with a lifting plate, the ceramic heat conduction layer is located between the lifting plate and the resistance wire conduit, and the carbon brush assembly is further fixed on the drum, the carbon brush assembly and the heating The resistance wire is electrically connected.

[0006] 上述构成中，加热部由外至内依次包括不锈钢层、第一保温砖层、第二保温砖层、电阻丝导管、陶瓷导热层，位于滚筒内的物料与陶瓷导热层接触，电阻丝导管内设有加热电阻丝，加热电阻丝得电后产生热量，经陶瓷导热层对物料进行加热，位于滚筒内的物料受热均匀，而第一保温砖层、第二保温砖层起到保温的目的，减小了滚筒的热量损失，节约了资源；另外，固定在陶瓷导热层上的扬料板起到扬料的作用，即滚筒在转动过程中位于滚筒内的物料会被扬料板阻挡，避免位于滚筒内的物料在滚筒转动过程中沿陶瓷导热层滑动，从而使得滚筒内的物料受热均匀，并充分与空气均匀，提高了滚筒的煅烧效果。 [0006] In the above configuration, the heating portion includes a stainless steel layer, a first insulating brick layer, a second insulating brick layer, a resistance wire conduit, and a ceramic heat conducting layer in order from the outside to the inside, and the material located in the drum contacts the ceramic heat conducting layer, and the resistor The heating wire is provided in the wire duct, and the heating wire is heated to generate heat, and the material is heated by the ceramic heat conducting layer, the material in the drum is heated uniformly, and the first insulating brick layer and the second insulating brick layer are insulated. The purpose is to reduce the heat loss of the drum and save resources; in addition, the lifting plate fixed on the ceramic heat conducting layer functions as a lifting material, that is, the material located in the drum during the rotating process is lifted by the lifting plate Blocking, avoiding the material located in the drum to slide along the ceramic heat conducting layer during the rotation of the drum, so that the material in the drum is uniformly heated and fully integrated with the air, thereby improving the calcination effect of the drum.

[0007] 一种可选的方案，所述扬料板垂直于陶瓷导热层，并且所述扬料板的长度方向与滚筒的轴线平行。滚筒在回转过程中，扬料板具有更好的扬料效果，进一步提高了滚筒的煅烧效果。 [0007] In an alternative, the lifting plate is perpendicular to the ceramic heat conducting layer, and the length direction of the lifting plate is parallel to the axis of the drum. During the turning process of the drum, the lifting plate has a better lifting effect, which further improves the calcination effect of the drum.

[0008] 一种可选的方案，所述滚筒的轴线与水平面的夹角为 1度到 3度，所述预热部的竖直高度高于冷却部的竖直高度。该设置使得滚筒内的物料排料十分方便，由于滚筒有一定的倾斜角度，从而使得物料可以完全排出，操作方便。 [0008] In an optional solution, an axis of the drum is at an angle of 1 to 3 degrees from a horizontal plane, and a vertical height of the preheating portion is higher than a vertical height of the cooling portion. This arrangement makes the material discharge in the drum very convenient, because the drum has a certain inclination angle, so that the material can be completely discharged, and the operation is convenient.

[0009] 一种可选的方案，所述机架上还固定有罩设在加热部外的保温罩。保温罩起到对加热部进行保温的作用，进一步减小了热量损失，节约了资源。 [0009] In an optional solution, the frame is further fixed with a heat insulating cover that is disposed outside the heating portion. The heat shield serves to keep the heating part warm, further reducing heat loss and saving resources.

[0010] 一种可选的方案，所述机架上固定有驱动滚筒转动的驱动电机，所述机架上转动连接有小链轮，所述小链轮由驱动电机驱动，所述滚筒上设有大链轮，大链轮与小链轮之间设有传动链，所述机架上转动连接有支撑滚筒的滚轮。驱动电机通过传动链驱动滚筒转动，相对于现有技术中的平带传动，滚筒具有更高的转动精度，提高了滚筒的煅烧效果。 [0010] In an optional solution, a drive motor for driving the rotation of the drum is fixed on the frame, and a small sprocket is rotatably connected to the frame, and the small sprocket is driven by a driving motor. A large sprocket is arranged, and a transmission chain is arranged between the large sprocket and the small sprocket, and the roller supporting the roller is rotatably connected to the frame. The driving motor drives the drum to rotate through the transmission chain. Compared with the prior art flat belt transmission, the drum has higher rotation precision and improves the calcination effect of the drum.

[0011] 一种可选的方案，所述驱动电机与小链轮之间设有减速器。驱动电机的转速由减速器进行减速，相对于现有技术中采用调速电机，降低了内加热陶瓷内胆回转炉的运行成本。 [0011] In an optional solution, a speed reducer is disposed between the driving motor and the small sprocket. The speed of the drive motor is decelerated by the reducer, which reduces the operating cost of the internally heated ceramic liner reversing furnace compared to the prior art using a variable speed motor.

[0012] 一种可选的方案，该内加热陶瓷内胆回转炉还包括进料装置和排料口，所述进料装置与预热部相通，所述进料装置与预热部之间设有进料防尘罩，所述冷却部上设有排料防尘罩，所述排料防尘罩与冷却部相通，所述排料防尘罩下端幵设有排料口。进料防尘罩、排料防尘罩起到防尘的作用，避免外界杂质污染位于滚筒内的物料，优化了内加热陶瓷内胆回转炉的煅烧效果。 [0012] In an optional solution, the internally heated ceramic liner rotary furnace further includes a feeding device and a discharge port, and the inlet The material device is in communication with the preheating portion, a feeding dust cover is arranged between the feeding device and the preheating portion, a discharge dust cover is arranged on the cooling portion, and the discharge dust cover and the cooling portion are arranged In the same manner, the discharge end of the discharge dust cover is provided with a discharge opening. The feeding dust cover and the discharge dust cover play the role of dustproof, avoiding foreign matter from contaminating the materials located in the drum, and optimizing the calcination effect of the inner heating ceramic liner rotary furnace.

[0013] 一种可选的方案，所述进料防尘罩与加热部之间设有第一密封环，所述排料防尘罩与冷却部之间设有第二密封环。第一密封环、第二密封环起到密封的效果 [0013] In an optional solution, a first sealing ring is disposed between the feeding dust cover and the heating portion, and a second sealing ring is disposed between the discharging dust cover and the cooling portion. The first sealing ring and the second sealing ring serve to seal

，在减小热量损失的前提下还可以避免杂质进入滚筒内，进一步优化了内加热陶瓷内胆回转炉的煅烧质量。 Under the premise of reducing heat loss, impurities can be prevented from entering the drum, and the calcination quality of the inner heating ceramic liner rotary furnace is further optimized.

[0014] 一种可选的方案，所述滚筒上还设置有向加热部内供应气体的进气管，所述进气管穿过排料防尘罩、冷却部后与加热部相通，所述进料防尘罩上设有出气管。进气管穿过排料防尘罩、冷却部后进入加热部，可以避免在加热部上幵设穿设进气管的通孔，从而使得加热部具有良好的密封效果，减小了热量损失。发明的有益效果 [0014] In an optional solution, the drum is further provided with an intake pipe that supplies a gas into the heating portion, and the intake pipe passes through the discharge dust cover and the cooling portion, and communicates with the heating portion, the feeding An air outlet pipe is arranged on the dust cover. The intake pipe passes through the discharge dust cover and the cooling portion and enters the heating portion, so that the through hole penetrating the intake pipe can be avoided on the heating portion, so that the heating portion has a good sealing effect and reduces heat loss. Advantageous effects of the invention

有益效果 Beneficial effect

[0015] 与现有技术相比，本发明提供的一种内加热陶瓷内胆回转炉，具有如下优点：加热部由外至内依次包括不锈钢层、第一保温砖层、第二保温砖层、电阻丝导管、陶瓷导热层，在电阻丝导管内设置有加热电阻丝，加热电阻丝得电后产生热量，该热量通过陶瓷导热层对滚筒内的物料进行加热，由于电阻丝导管与物料之间设有陶瓷导热层，加热电阻丝不直接对物料进行加热，从而使得物料受热均匀，优化了加热部对物料的煅烧效果，而第一保温砖层、第二保温砖层起到保温的效果，减小了热量损失，节约了资源，陶瓷导热层可以将不锈钢层与物料隔幵，杜绝物料煅烧吋的挥发物对不锈钢层的腐蚀，优化了物料的煅烧质量；另外，设置在陶瓷导热层上的扬料板，可以避免滚筒转动吋物料沿陶瓷导热层滑动，起到翻动物料的作用，使得滚筒内的物料受热均匀，进一步优化了加热部对物料的煅烧质量。 [0015] Compared with the prior art, the present invention provides an internal heating ceramic liner rotary furnace, which has the following advantages: The heating portion includes a stainless steel layer, a first thermal insulation brick layer and a second thermal insulation brick layer from the outside to the inside. , the resistance wire conduit, the ceramic heat conduction layer, the heating resistance wire is arranged in the resistance wire conduit, and the heating resistance wire generates electricity to generate heat, and the heat is heated by the ceramic heat conduction layer to the material in the drum, due to the resistance wire conduit and the material There is a ceramic heat conduction layer, the heating resistance wire does not directly heat the material, so that the material is evenly heated, and the heating effect of the heating part on the material is optimized, and the first thermal insulation brick layer and the second thermal insulation brick layer have the effect of heat preservation. The heat loss is reduced and the resources are saved. The ceramic heat conduction layer can separate the stainless steel layer from the material, prevent the corrosion of the stainless steel layer by the volatile matter of the calcined crucible, and optimize the calcination quality of the material; in addition, it is disposed on the ceramic heat conduction layer. The lifting plate on the board can avoid the rotation of the drum, the material slides along the ceramic heat conduction layer, and plays the role of turning the animal material. , the material in the drum is evenly heated, and the calcination quality of the material in the heating part is further optimized.

对附图的简要说明 Brief description of the drawing

附图说明 DRAWINGS

[0016] 附图 1是本发明一种内加热陶瓷内胆回转炉的主视图； [0017] 附图 2是附图 1中 A-A处剖视图。 1 is a front elevational view of an internally heated ceramic liner rotary kiln of the present invention; 2 is a cross-sectional view taken along line AA of FIG. 1.

实施该发明的最佳实施例 BEST MODE FOR CARRYING OUT THE INVENTION

本发明的最佳实施方式 BEST MODE FOR CARRYING OUT THE INVENTION

[0018] 下面结合附图，对本发明的一种内加热陶瓷内胆回转炉作进一步说明。如图 1 、图 2所示，一种内加热陶瓷内胆回转炉，包括机架 1，所述机架 1上转动连接有滚筒 2，所述机架 1上设置有两对滚轮 17，两对滚轮 17分别位于机架 1的两端用于支撑滚筒 2，所述滚轮 17转动连接在机架 1上，机架 1上焊接有固定滚轮 17的固定轴，滚轮 17与固定轴之间设有滚动轴承，滚轮 17的数量越多则滚筒 2转动吋越稳定，具体实施吋可以自由选择滚轮 17的数量，所述滚筒 2由驱动电机 14驱动，所述驱动电机 14通过螺栓固定在机架 1上，所述机架 1上转动连接有小链轮 15，小链轮 15通过链轮轴转动连接在机架 1上，所述小链轮 15由驱动电机 14驱动，在驱动电机 14与小链轮 15之间设有减速器 18，驱动电机 14的动能先传输给减速器 18 ，然后再由减速器 18将驱动电机 14的动能传输给小链轮 15，所述滚筒 2上通过螺栓连接有大链轮 16，大链轮 16与小链轮 15之间设有传动链，驱动电机 14转动即可通过传动链带动滚筒 2转动，从而使得位于滚筒 2内的物料受热均匀； [0018] An internal heating ceramic liner rotary kiln of the present invention will be further described below with reference to the accompanying drawings. As shown in FIG. 1 and FIG. 2, an inner heating ceramic liner rotary kiln includes a frame 1 , and the frame 1 is rotatably connected with a roller 2, and the frame 1 is provided with two pairs of rollers 17 and two The roller 17 is respectively located at two ends of the frame 1 for supporting the drum 2, and the roller 17 is rotatably connected to the frame 1. The frame 1 is welded with a fixed shaft for fixing the roller 17, and the roller 17 is disposed between the roller and the fixed shaft. With the rolling bearing, the more the number of the rollers 17, the more stable the rotation of the drum 2, the number of the rollers 17 can be freely selected, the drum 2 is driven by the driving motor 14, and the driving motor 14 is fixed to the frame 1 by bolts. The small sprocket 15 is rotatably connected to the frame 1, and the small sprocket 15 is rotatably connected to the frame 1 through a sprocket shaft. The small sprocket 15 is driven by a driving motor 14 to drive the motor 14 and the small chain. A speed reducer 18 is disposed between the wheels 15, and the kinetic energy of the driving motor 14 is first transmitted to the speed reducer 18, and then the kinetic energy of the driving motor 14 is transmitted to the small sprocket 15 by the speed reducer 18, and the drum 2 is connected by bolts. Large sprocket 16 Large sprocket 16 is provided between the pinion and the drive chain sprocket 15, i.e., the driving motor 14 rotates the rotary drum 2 can be driven by the drive chain, so that the material is located within the cylinder 2 is heated evenly;

[0019] 参见图 1，所述滚筒 2包括预热部 3，所述预热部 3即为现有技术中的预热装置，所述滚筒 2还包括冷却部 4，所述冷却部 4即为现有技术中的冷却装置，考虑到冷却成本，优先选择现的技术中的水冷装置，在预热部 3与冷却部 4之间设有加热部 5，所述预热部 3与加热部 5相通，所述加热部 5与冷却部 4相通；所述预热部 3 、冷却部 4可以固定在加热部 5上，当然，预热部 3、冷却部 4也可以与加热部 5为一体式结构； [0019] Referring to FIG. 1, the drum 2 includes a preheating portion 3, which is a preheating device in the prior art, and the drum 2 further includes a cooling portion 4, and the cooling portion 4 is For the cooling device of the prior art, in consideration of the cooling cost, the water cooling device in the prior art is preferentially selected, and the heating portion 5 is provided between the preheating portion 3 and the cooling portion 4, and the heating portion 3 and the heating portion are provided. 5, the heating portion 5 is in communication with the cooling portion 4; the preheating portion 3 and the cooling portion 4 may be fixed to the heating portion 5. Of course, the preheating portion 3 and the cooling portion 4 may be integrated with the heating portion 5. Structure

[0020] 参见图 2，所述加热部 5由外至内依次包括不锈钢层 6、第一保温砖层 7、第二保温砖层 8、电阻丝导管 9、陶瓷导热层 10，所述不锈钢层 6优先选用 304不锈钢，所述第一保温砖层 7、第二保温砖层 8均由轻质高铝砖装配形成，所述陶瓷导热层 10由 99.5%氧化铝异型砖装配形成，起到使物料均匀受热、避免物料被污染的作用，陶瓷导热层 10可以将不锈钢层 6与物料隔幵，避免了物料与不锈钢层 6发生反应，优化了物料的煅烧质量，所述电阻丝导管 9由 99瓷制成；所述电阻丝导管 9内设置有加热电阻丝，所述陶瓷导热层 10上设有扬料板 11，所述扬料板 11可以由形成陶瓷导热层 10的异形砖形成，所述扬料板 11垂直于陶瓷导热层 10，并且所述扬料板 11的长度方向与滚筒 2的轴线平行，以使扬料板 11可以更好地翻动滚筒 2内的物料，滚筒 2内的物料受热均匀，所述陶瓷导热层 10位于扬料板 11与电阻丝导管 9之间，所述滚筒 2上还固定有碳刷组件 12，所述碳刷组件 12与加热电阻丝电连接，电源经碳刷组件 12向加热电阻丝供电；为了进一步对滚筒 2进行保温，所述机架 1上还固定有罩设在加热部 5外的保温罩 13，该保温罩 13可以通过任何固定方式固定在机架 1上； [0020] Referring to FIG. 2, the heating portion 5 includes a stainless steel layer 6, a first insulating brick layer 7, a second insulating brick layer 8, a resistance wire conduit 9, a ceramic heat conducting layer 10, and the stainless steel layer, in order from the outside to the inside. 6 is preferably selected from 304 stainless steel, wherein the first insulating brick layer 7 and the second insulating brick layer 8 are all formed by assembly of lightweight high alumina bricks, and the ceramic heat conducting layer 10 is formed by assembling 99.5% alumina shaped bricks, thereby The material is evenly heated and the material is prevented from being contaminated. The ceramic heat conducting layer 10 can separate the stainless steel layer 6 from the material, avoiding the reaction between the material and the stainless steel layer 6, and optimizing the calcination quality of the material. The resistance wire conduit 9 is 99. The heating wire is disposed in the electric resistance wire conduit 9 , and the ceramic heat conducting layer 10 is provided with a lifting plate 11 , and the lifting plate 11 can be Formed by a shaped brick forming the ceramic heat conducting layer 10, the lifting plate 11 is perpendicular to the ceramic heat conducting layer 10, and the length direction of the lifting plate 11 is parallel to the axis of the drum 2, so that the lifting plate 11 can be further The material in the drum 2 is fluently heated, and the material in the drum 2 is evenly heated. The ceramic heat conducting layer 10 is located between the lifting plate 11 and the electric resistance wire guide 9, and the carbon brush assembly 12 is fixed on the drum 2. The carbon brush assembly 12 is electrically connected to the heating resistor wire, and the power source is supplied to the heating resistor wire via the carbon brush assembly 12; in order to further heat the drum 2, the frame 1 is further fixed with a heat shield disposed outside the heating portion 5. a cover 13, the heat retaining cover 13 can be fixed to the frame 1 by any fixing means;

[0021] 具体实施吋，物料通过进料装置 19进入预热部 3内，物料经预热部 3、加热部 5 、冷却部 4处理后排出，该内加热陶瓷内胆回转炉还应包括进料装置 19和排料口 20，所述进料装置 19与预热部 3相通，所述进料装置 19与预热部 3之间设有进料防尘罩 21，所述进料防尘罩 21与加热部 5之间设有第一密封环，所述冷却部 4上设有排料防尘罩 22，所述排料防尘罩 22与冷却部 4相通，所述排料防尘罩 22与冷却部 4之间设有第二密封环，所述排料防尘罩 22下端幵设有排料口 20; [0021] Specifically, the material enters the preheating portion 3 through the feeding device 19, and the material is discharged through the preheating portion 3, the heating portion 5, and the cooling portion 4, and the inner heating ceramic liner rotary furnace should also include a feeding device 19 and a discharge port 20, the feeding device 19 is in communication with the preheating portion 3, and a feeding dust cover 21 is disposed between the feeding device 19 and the preheating portion 3, and the feeding material is dustproof A first sealing ring is disposed between the cover 21 and the heating portion 5, and the cooling portion 4 is provided with a discharge dust cover 22, the discharge dust cover 22 is in communication with the cooling portion 4, and the discharge material is dustproof a second sealing ring is disposed between the cover 22 and the cooling portion 4, and a discharge opening 20 is disposed at a lower end of the discharge dust cover 22;

[0022] 为了便于滚筒 2排料，所述滚筒 2的轴线与水平面的夹角为 1度到 3度，所述预热部 3的竖直高度高于冷却部 4的竖直高度，滚筒 2处于倾斜状态，排料吋可以完全排出位于滚筒 2内的物料； [0022] In order to facilitate the discharge of the drum 2, the angle between the axis of the drum 2 and the horizontal plane is 1 to 3 degrees, the vertical height of the preheating portion 3 is higher than the vertical height of the cooling portion 4, the drum 2 When it is inclined, the discharge bowl can completely discharge the material located in the drum 2;

[0023] 物料在煅烧过程中可能需要向滚筒 2内供入气体，所述滚筒 2上还设置有向加热部 5内供应气体的进气管 23，所述进气管 23穿过排料防尘罩 22、冷却部 4后与加热部 5相通，以避免在加热部 5上幵设通孔造成热量损失，所述进料防尘罩 21上设有出气管 24。 [0023] The material may need to supply gas into the drum 2 during the calcination process, and the drum 2 is further provided with an intake pipe 23 for supplying gas into the heating portion 5, and the intake pipe 23 passes through the discharge dust cover. 22. The cooling portion 4 is in communication with the heating portion 5 to avoid heat loss caused by the provision of a through hole in the heating portion 5. The air outlet tube 24 is disposed on the feed dust cover 21.

[0024] 上述方案在具体实施过程中，首先打幵驱动电机 14，由驱动电机 14带动滚筒 2 旋转，然后将物料由供料装置加入预热部 3内，物料在预热部 3内预热后进入加热部 5进行煅烧，位于加热部 5内的物料热处理完毕后进入冷却部 4冷却，最后由排料口 20将物料排出，完成整个煅烧过程；上述技术方案中的加热电阻丝位于第二保温砖层 8、与陶瓷导热层 10之间，大大减小了热量损失，节约了资源。 [0024] In the specific implementation process, the driving motor 14 is first driven, the driving motor 14 drives the drum 2 to rotate, and then the material is added into the preheating portion 3 by the feeding device, and the material is preheated in the preheating portion 3. After entering the heating portion 5 for calcination, the material located in the heating portion 5 is heat-treated, then enters the cooling portion 4 to be cooled, and finally the material is discharged from the discharge port 20 to complete the entire calcination process; the heating resistance wire in the above technical solution is located in the second Between the insulating brick layer 8 and the ceramic heat conducting layer 10, heat loss is greatly reduced, and resources are saved.

[0025] 当然，上述方案中的预热部 3也可以由物料通道代替，此吋，加热部 5应分为三个温度区，即靠近预热部 3的低温区、靠近冷却部 4的高温区，物料在加热部 5内进行预热，该方案可以进一步减小热量损失，优化了内加热陶瓷内胆回转炉运行性能。 [0025] Of course, the preheating portion 3 in the above solution may also be replaced by a material passage. Therefore, the heating portion 5 should be divided into three temperature zones, that is, a low temperature zone close to the preheating section 3 and a high temperature close to the cooling section 4. Zone, the material is preheated in the heating part 5, the scheme can further reduce the heat loss, and optimize the inner heating ceramic liner rotary furnace Line performance.

[0026] 上述技术方案中各部件的装配方式参照现有技术中回转炉的装配方式，以使本发明公幵的技术方案便于本领域技术人员的实施。 The assembly manner of each component in the above technical solution refers to the assembly manner of the rotary furnace in the prior art, so that the technical solution of the present invention is convenient for the implementation of those skilled in the art.

[0027] 以上仅为本发明的优选实施方式，旨在体现本发明的突出技术效果和优势，并非是对本发明的技术方案的限制。本领域技术人员应当了解的是，一切基于本发明技术内容所做出的修改、变化或者替代技术特征，皆应涵盖于本发明所附权利要求主张的技术范畴内。 The above is only a preferred embodiment of the present invention, and is intended to embody the outstanding technical effects and advantages of the present invention, and is not intended to limit the technical solutions of the present invention. It should be understood by those skilled in the art that all modifications, variations, or alternative features, which are made based on the technical content of the present invention, should be included in the technical scope of the appended claims.

Claims

权利要求书 Claim

[权利要求 1] 一种内加热陶瓷内胆回转炉，包括机架（1) ，所述机架（1) 上转动连接有滚筒（2) ，其特征在于：所述滚筒（2) 包括预热部（3) ，所述滚筒（2) 还包括冷却部（4) ，在预热部（3) 与冷却部（4) 之间设有加热部（5) ，所述预热部（3) 与加热部（5) 相通，所述加热部（5) 与冷却部（4) 相通，所述加热部（5) 由外至内依次包括不锈钢层（6) 、第一保温砖层（7) 、第二保温砖层（8) 、电阻丝导管（9) 、陶瓷导热层（10) ，所述电阻丝导管（9) 内设置有加热电阻丝，所述陶瓷导热层（10) 上设有扬料板（11) ，所述陶瓷导热层（10) 位于扬料板（11) 与电阻丝导管（9) 之间，所述滚筒（2) 上还固定有碳刷组件（12) ，所述碳刷组件（12) 与加热电阻丝电连接。 [Claim 1] An internally heated ceramic liner rotary kiln comprising a frame (1), the frame (1) being rotatably coupled to a drum (2), characterized in that: the drum (2) comprises a pre- The hot portion (3), the drum (2) further includes a cooling portion (4), and a heating portion (5) is provided between the preheating portion (3) and the cooling portion (4), and the preheating portion (3) The heating portion (5) is in communication with the heating portion (5), and the heating portion (5) includes a stainless steel layer (6) and a first insulating brick layer (7) in order from the outside to the inside. a second insulating brick layer (8), a resistance wire conduit (9), a ceramic heat conducting layer (10), a heating resistance wire disposed in the resistance wire conduit (9), and the ceramic heat conducting layer (10) There is a lifting plate (11), the ceramic heat conducting layer (10) is located between the lifting plate (11) and the resistance wire conduit (9), and the carbon brush assembly (12) is further fixed on the roller (2). The carbon brush assembly (12) is electrically connected to the heating resistor wire.

[权利要求 2] 根据权利要求 1所述的一种内加热陶瓷内胆回转炉，其特征在于：所述扬料板（11) 垂直于陶瓷导热层（10) ，并且所述扬料板（11) 的长度方向与滚筒（2) 的轴线平行。 [Claim 2] An internally heated ceramic liner rotary kiln according to claim 1, wherein: the lifting plate (11) is perpendicular to the ceramic heat conducting layer (10), and the lifting plate ( 11) The length direction is parallel to the axis of the drum (2).

[权利要求 3] 根据权利要求 1所述的一种内加热陶瓷内胆回转炉，其特征在于：所述滚筒（2) 的轴线与水平面的夹角为 1度到 3度，所述预热部（3) 的竖直高度高于冷却部（4) 的竖直高度。 [Claim 3] An internally heated ceramic liner rotary kiln according to claim 1, wherein: an angle between an axis of the drum (2) and a horizontal plane is 1 to 3 degrees, and the preheating The vertical height of the part (3) is higher than the vertical height of the cooling part (4).

[权利要求 4] 根据权利要求 1至 3任意一项所述的一种内加热陶瓷内胆回转炉，其特征在于：所述机架（1) 上还固定有罩设在加热部（5) 外的保温罩（ 13) 。 [Claim 4] An internal heating ceramic liner rotary kiln according to any one of claims 1 to 3, characterized in that: the frame (1) is further fixed with a cover on the heating portion (5) External insulation cover ( 13).

[权利要求 5] 根据权利要求 1至 3任意一项所述的一种内加热陶瓷内胆回转炉，其特征在于：所述机架（1) 上固定有驱动滚筒（2) 转动的驱动电机（14 ) ，所述机架（1) 上转动连接有小链轮（15) ，所述小链轮（15) 由驱动电机（14) 驱动，所述滚筒（2) 上设有大链轮（16) ，大链轮（16) 与小链轮（15) 之间设有传动链，所述机架（1) 上转动连接有支撑滚筒（2) 的滚轮（17) 。 [Claim 5] The inner heating ceramic liner rotary kiln according to any one of claims 1 to 3, characterized in that: the drive motor of the drive roller (2) is fixed to the frame (1) (14), the frame (1) is rotatably connected with a small sprocket (15), the small sprocket (15) is driven by a driving motor (14), and the drum (2) is provided with a large sprocket (16), a transmission chain is arranged between the large sprocket (16) and the small sprocket (15), and the roller (17) supporting the roller (2) is rotatably connected to the frame (1).

[权利要求 6] 根据权利要求 5所述的一种内加热陶瓷内胆回转炉，其特征在于：所述驱动电机（14) 与小链轮（15) 之间设有减速器（18) 。 [Claim 6] An internally heated ceramic liner rotary kiln according to claim 5, wherein: A speed reducer (18) is provided between the drive motor (14) and the small sprocket (15).

[权利要求 7] 根据权利要求 1至 3任意一项所述的一种内加热陶瓷内胆回转炉，其特征在于：该内加热陶瓷内胆回转炉还包括进料装置（19) 和排料口 ( 20) ，所述进料装置（19) 与预热部（3) 相通，所述进料装置（19 ) 与预热部（3) 之间设有进料防尘罩（21) ，所述冷却部（4) 上设有排料防尘罩（22) ，所述排料防尘罩（22) 与冷却部（4) 相通，所述排料防尘罩（22) 下端幵设有排料口（20) 。 [Claim 7] An internally heated ceramic liner rotary kiln according to any one of claims 1 to 3, wherein: the internally heated ceramic liner rotary kiln further comprises a feeding device (19) and a discharge material a mouth (20), the feeding device (19) is in communication with the preheating portion (3), and a feeding dust cover (21) is arranged between the feeding device (19) and the preheating portion (3), The cooling portion (4) is provided with a discharge dust cover (22), the discharge dust cover (22) is in communication with the cooling portion (4), and the discharge dust cover (22) is disposed at the lower end There is a discharge port (20).

[权利要求 8] 根据权利要求 7所述的一种内加热陶瓷内胆回转炉，其特征在于：所述进料防尘罩（21) 与加热部（5) 之间设有第一密封环，所述排料防尘罩（₂₂) 与冷却部（4) 之间设有第二密封环。 [Claim 8] An internally heated ceramic liner rotary kiln according to claim 7, wherein: a first sealing ring is disposed between the feed dust cover (21) and the heating portion (5) A second sealing ring is disposed between the discharge dust cover ( ₂₂ ) and the cooling portion (4).

[权利要求 9] 根据权利要求 8所述的一种内加热陶瓷内胆回转炉，其特征在于：所述滚筒（2) 上还设置有向加热部（5) 内供应气体的进气管（23) ，所述进气管（23) 穿过排料防尘罩（22) 、冷却部（4) 后与加热部 (5) 相通，所述进料防尘罩（21) 上设有出气管（24) 。 [Claim 9] An internally heated ceramic liner rotary kiln according to claim 8, wherein: the drum (2) is further provided with an intake pipe for supplying gas into the heating portion (5) (23) The intake pipe (23) passes through the discharge dust cover (22), the cooling portion (4), and communicates with the heating portion (5), and the feed dust cover (21) is provided with an air outlet pipe ( twenty four) .