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WO2008000167A1 - Close combined dry coal-sorting device - Google Patents

Close combined dry coal-sorting device Download PDF

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Publication number
WO2008000167A1
WO2008000167A1 PCT/CN2007/001970 CN2007001970W WO2008000167A1 WO 2008000167 A1 WO2008000167 A1 WO 2008000167A1 CN 2007001970 W CN2007001970 W CN 2007001970W WO 2008000167 A1 WO2008000167 A1 WO 2008000167A1
Authority
WO
WIPO (PCT)
Prior art keywords
dust
coal preparation
dry coal
composite dry
sorting
Prior art date
Application number
PCT/CN2007/001970
Other languages
French (fr)
Chinese (zh)
Inventor
Gongmin Li
Original Assignee
Gongmin Li
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gongmin Li filed Critical Gongmin Li
Publication of WO2008000167A1 publication Critical patent/WO2008000167A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Definitions

  • the invention relates to a separation device for coal and vermiculite and pyrite, in particular to a closed composite dry coal preparation device. Background technique
  • the traditional dry sorting machine is mainly a lateral vibration structure, the structure is complicated, the equipment is large, and the bed surface is rectangular, the utilization rate is low, and the operation and maintenance are extremely inconvenient.
  • CN2314850 discloses a composite dry sorting machine consisting of a suspended double vibrating motor linear vibrator and a sorting bed, and three air chambers and air ducts communicating with the sorting bed, in vibration force and updraft Under the action, the material is spirally moved and layered according to density, and separated by multiple cycles to separate the low-density material from the high-density material, which improves the sorting effect, but the resulting dust pollution cannot be ignored, although
  • the utility model integrates the sorting bed and the air chamber, improves the sealing effect and uses the dust hood to reduce environmental pollution, but there is still no seal between the dust collecting hood, the sorting machine and the discharging device. The location, so there is still a considerable degree of dust pollution. Summary of the invention
  • a closed composite dry coal preparation device including a frame, a buffer tank, a vibration distribution feeder, a sorting machine, a hanging device, and a discharge device.
  • the air dust removing device comprises a centrifugal fan, a dust collecting cover, a dust remover, a dust removing fan and a plurality of air chambers; the sorting machine and the dust collecting cover
  • the discharge device is integrally sealed by an enclosure; the centrifugal fan is connected to the air chamber through a pipeline; the inlet of the dust collector is connected to the outlet of the dust suction cover, and the outlet of the dust collector is The inlet of the dust removal fan is connected.
  • the dust remover is preferably a bag filter, and a reverse blower is mounted on the upper portion thereof.
  • the air dust removing device of the present invention may further comprise another dust remover, and the inlet and outlet of the other dust remover are respectively connected to the dust collecting hood and the centrifugal fan through a pipeline.
  • the other dust remover is preferably a straight cylindrical cyclone.
  • the present invention preferably has an electric valve disposed on its outlet duct.
  • the closure of the present invention is preferably assembled from a thin iron plate.
  • the foamed plastic is adhered to the inner wall of the closure of the present invention.
  • the hanging device according to the present invention is a double wire rope damping spring hanging device.
  • the rear portion of the sorting machine is provided with four vibration motors that are linearly coupled to generate a linear motion.
  • the plenum according to the present invention is preferably located below the sorting bed of the sorting machine and integrated with the bed surface, preferably a total of 10-20 plenums are arranged, and each plenum is softly connected with the inlet duct And set the damper.
  • the plenum of the plenum of the present invention closest to the inlet of the sorting bed may be equipped with a high pressure centrifugal fan as an auxiliary fan.
  • the closed composite dry coal preparation device according to the present invention, the sorting machine and the suction
  • the dust cover and the discharge device are integrally sealed by a closed body, and the dust-containing gas in the dust collecting cover of the sorting machine and the air around the sorting machine can be sent to the dust remover for dust removal, and then the purified air is discharged outside the factory.
  • the use of the enclosure not only ensures complete dust removal, but also avoids the influence of the sorting system on the environment inside the plant during the dust removal process and the influence of other factors in the environment on the dust removal. In addition, the noise from the sorting system can be reduced. . In order to ensure the good dust removal effect while ensuring the sorting effect of dry coal preparation, it is a dry coal preparation device that adapts to modern large-scale production and environmental protection requirements.
  • Figure 1 is a schematic front view of the structure of the present invention (buffer bin and feeder means not shown).
  • Figure 1 is a schematic side view showing the structure of the present invention.
  • Figure 3 is a schematic plan view showing the structure of the present invention. detailed description
  • the closed composite dry coal preparation device of the present embodiment is composed of an air outlet pipe 1, a material device 2, a double wire rope vibration damping spring hanging device 3, a bed surface 4, a discharge baffle plate 5, and a bag type dust collector. 6. Electric cutting flap 7, dusting fan 8, gangue outlet 9, medium coal outlet 10, clean coal outlet 11, air chamber 12, auxiliary fan 13, centrifugal fan 14, back plate 15, sorting bed 16, vibration Motor 17, rack 18, sorting machine 19, vibration distribution feeder 20, buffer tank 21, dust hood 22, blower 23, chimney 24, inlet duct 25, straight cyclone stack 26 and closure Body 27 and so on.
  • the sorting machine 19 is mounted on the frame 18 by a double wire rope damping spring hanging device 3, which is composed of a dust collecting cover 22, a sorting bed 16, and a discharging device 2, and four linkages are arranged at the rear portion thereof.
  • the linear motion vibration motor 17 is configured to generate a sufficient vibration effect;
  • the dust suction cover 22 is located at an upper portion of the sorting machine 19, and the separation bed 16 is composed of a bed surface 4, a back plate 15, a discharge baffle 5, and a wind chamber 12.
  • the composition is integrally sealed with the dust collecting cover 22 and the discharging device 2 by the closing body 27, and the closing body 27 is assembled by pressing and forming a thin iron plate, and the inner wall of the closing body 27 is sprayed with foamed plastic to form heat preservation and lowering.
  • the noise layer is provided with a transparent plastic tile on the top of the closing body 27 to facilitate the glare, and the door of the closing body is provided with an operator's door for entry and exit, which is convenient for operation.
  • the closing body 27 is provided with a hole for providing a pipe in and out at a corresponding position, and a gap between the hole and the pipe is sealed by a foamed plastic sprayed on the inner wall of the closing body 27.
  • the discharging device 2 is composed of a discharge chute and a clean coal outlet 11 of a clean coal, a medium coal, a vermiculite, a medium coal outlet 10, a meteorite outlet 9 and the like, and an electric cutting flap 7 is arranged in the discharge chute and is located in the sorting device.
  • the air chamber 12 is located below the bed surface 4 and is integrated with the bed surface 4.
  • a total of 16 air chambers 12 are provided, and each of the air chambers 12 is softly connected with the air inlet tube 25 and is provided with a damper.
  • the first air chamber at the feed port of the sorting bed 16 is equipped with a high-pressure centrifugal fan as an auxiliary fan 13 for further controlling the air volume and enhancing the effect of sorting.
  • the centrifugal fan 14 is connected to the dust collecting hood 22 of the sorting machine 19 and the combination of the straight cylindrical cyclone 26 through the air inlet pipe 25 and the air outlet pipe 1, and an electric valve is arranged on the outlet pipe.
  • the inlet of the bag filter 6 is connected to the outlet on the dust collecting hood 22, the upper part of which is connected to the inlet of the dust removing fan 8, the outlet of the dust removing fan 8 is connected to the chimney 24, and the upper part of the bag filter 6 is installed.
  • the vibration distribution feeder 20 is installed in the lower part of the buffer tank 21, and the amplitude and the inclination angle thereof can be adjusted.
  • the lateral and longitudinal angles of the sorting bed 16 can be electrically adjusted by the Han wire rope damping spring hanging device 3, and the dust collecting cover There are two parallel exits on the 22nd.
  • the raw coal is selected into the buffer tank 21 via the belt feeder, and the feeding amount is controlled by the vibration distribution feeder 20, and uniformly distributed to the sorting bed 16 in the sorting machine 19, behind the sorting machine 19
  • the four vibration motors 17 are linked to generate a linear motion, so that the selected raw coal forms a layer having a certain thickness in the separation bed 16, and is loose under the action of vibration force and wind force, and is layered according to the density.
  • the clean coal with a lower density of the upper layer of the material falls into the discharge chute through the discharge device 2, and is transported by the belt conveyor at the lower part of the clean coal outlet 11; the medium coal with a higher density is discharged from the medium coal outlet 10 through the discharge device 2 .
  • the bottom layer of the bed 4, vermiculite and pyrite are concentrated to the end of the vermiculite under the action of vibration inertia, and are discharged by the vermiculite outlet 9.
  • the electric cutting flap 7 is arranged in the discharge chute to control the product quality.
  • the dust collecting hood 22 above the sorting bed 16 has two juxtaposed outlets, adopting a parallel dust removing process, and the wind removing part includes a centrifugal fan 14, an air inlet pipe 25, an air outlet pipe 1, a dust collecting hood 22, and a straight whirlwind.
  • the parallel dust removal process is divided into two lines: First, the dust-containing gas enters the straight cyclone dust collector combination 26 from one outlet of the dust suction hood 22, and the gas returns to the centrifugal fan 14 after the dust removal, and then passes through the air outlet pipe by the centrifugal fan 14. 1 is fed into each of the lower chambers 12 of the sorting bed 16 to form a circulation.
  • the function is to ensure the sorting effect and reduce the wear of the fan impeller; secondly, part of the dust-containing gas and the air around the dry sorter enter the bag filter 6 from the other outlet of the dust hood 22, and the purified air is filtered by the bag type.
  • the dust removing fan 8 at the lower portion of the precipitator 6 is discharged into the atmosphere via the chimney 24. Due to the implementation of integral sealing and negative pressure operation, _ to ensure that the working environment and the atmospheric environment are not contaminated by coal dust. Set in the upper part of the bag filter 6
  • the anti-hair dryer 23 can effectively improve the dust removal effect.
  • the device can improve the working efficiency and the sorting effect by adjusting the amplitude, inclination angle of the vibration distribution feeder 20 and the lateral and longitudinal angles of the sorting bed 16.
  • the electrical control part includes the step-down starter cabinet, the power distribution rejection and the automatic control cabinet, and realizes the functions of automatic interlock control, open-stop automatic program control, automatic alarm, bed body anti-resonance protection and system operation status display.
  • the difference is that the air inlet pipe 25, the air outlet pipe 1, and the straight cyclone dust collector combination 26 are not provided in the embodiment, and the centrifugal fan 14 only enters the air from the outside, and only passes the bag type dust removal.
  • the device 6 completes the dust removal.
  • the auxiliary fan 13 is not provided, and a total of 10 air chambers are provided.
  • the inner wall of the closing body 27 of this embodiment is not provided with a foamed plastic layer, and the sealing of the holes and the corresponding pipes on the inner wall is completed by the sealing ring.
  • Embodiment 1 is different in that this embodiment has a total of 20 plenums.
  • the above examples are merely illustrative of the invention and are not intended to limit the invention. If the enclosure is made of steel or other materials, the alternatives of the other precipitators that can achieve the effects of the present invention, the variations of the suspension system, etc., should fall within the scope of the present invention.

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  • Combined Means For Separation Of Solids (AREA)

Abstract

A close combined dry coal-sorting device comprises a frame (18), a surge bin (21), a vibrating feeder (20),a sorting device (19),an overhanging device (3),a discharging device (2) and an air supplying and dedusting device. The air supplying and dedusting device comprises a centrifugal fan (14), a dust hood (22), a dust collector, a dust blower fan (8) and air chambers (12). The sorting device (19), the dust hood (22) and the discharging device (2) are closed by an integrative sealing equipment. The centrifugal fan (14) is connected with the air chambers (12) by pipelines. The outlet of the dust collector is connected with the inlet of the dust blower fan (8). The coal-sorting device according to the invention can remove dust completely and can decrease the noises, too.

Description

一种封闭式复合式干法选煤装置  Closed composite dry coal preparation device
技术领域 Technical field
本发明涉及煤炭与矸石、硫铁矿的分离装置， 特别是一种封闭式 复合式干法选煤装置。 背景技术  The invention relates to a separation device for coal and vermiculite and pyrite, in particular to a closed composite dry coal preparation device. Background technique
传统的干法分选机主要为横向振动结构， 结构复杂、 设备庞大， 而且床面为矩形， 利用率低、 操作维修极为不便。  The traditional dry sorting machine is mainly a lateral vibration structure, the structure is complicated, the equipment is large, and the bed surface is rectangular, the utilization rate is low, and the operation and maintenance are extremely inconvenient.
CN2314850公开了一种复合式干法分选机，由吊挂的双振动电机 直线振动器和分选床， 以及与分选床连通的三个风室及风管组成，在 振动力和上升气流作用下， 物料做螺旋运动， 并按密度分层， 并经多 次循环分选， 使低密度物料与高密度物料分离， 提高了分选的效果， 但由此产生的粉尘污染不可忽视，虽然该实用新型将分选床和风室设 计为一体， 提高了密封效果并使用了吸尘罩， 减少了对环境的污染， 但由于吸尘罩、 分选机以及排料装置之间仍然存在没有密封的部位， 因此仍存在相当程度的粉尘污染。 发明内容  CN2314850 discloses a composite dry sorting machine consisting of a suspended double vibrating motor linear vibrator and a sorting bed, and three air chambers and air ducts communicating with the sorting bed, in vibration force and updraft Under the action, the material is spirally moved and layered according to density, and separated by multiple cycles to separate the low-density material from the high-density material, which improves the sorting effect, but the resulting dust pollution cannot be ignored, although The utility model integrates the sorting bed and the air chamber, improves the sealing effect and uses the dust hood to reduce environmental pollution, but there is still no seal between the dust collecting hood, the sorting machine and the discharging device. The location, so there is still a considerable degree of dust pollution. Summary of the invention
因此， 本发明的目的就在于提供一种适应大型化生产，且对环境 污染艮小的封闭式复合式干法选煤装置。  Accordingly, it is an object of the present invention to provide a closed type composite dry coal preparation apparatus which is suitable for large-scale production and which is less polluting to the environment.
为了实现本发明的目的， 提供一种封闭式复合式干法选煤装置， 包括机架、 緩冲仓、 振动分布给料机、 分选机、 吊挂装置、 排料装置 以及供风除尘装置， 其特征在于， 所述的供风除尘装置包括一离心通 风机、 一吸尘罩、 一除尘器、 一除尘风机以及复数风室； 所述的分选 机、 吸尘罩、 排料装置三者由一封闭体整体密封； 所述的离心通风机 通过管路与风室相连； 所述的除尘器的进口与该吸尘罩的出口相连， 该除尘器的出口与该除尘风机的进口相连。其中， 所述的除尘器优选 为袋式除尘器， 并在其上部装有一反吹风机。 ' In order to achieve the object of the present invention, a closed composite dry coal preparation device is provided, including a frame, a buffer tank, a vibration distribution feeder, a sorting machine, a hanging device, and a discharge device. And the air dust removing device, wherein the air dust removing device comprises a centrifugal fan, a dust collecting cover, a dust remover, a dust removing fan and a plurality of air chambers; the sorting machine and the dust collecting cover The discharge device is integrally sealed by an enclosure; the centrifugal fan is connected to the air chamber through a pipeline; the inlet of the dust collector is connected to the outlet of the dust suction cover, and the outlet of the dust collector is The inlet of the dust removal fan is connected. Wherein, the dust remover is preferably a bag filter, and a reverse blower is mounted on the upper portion thereof. '
本发明所述的供风除尘装置还可包括另一除尘器，所述的另一除 尘器的进、出口通过管路分别与该吸尘罩和该离心通风机相连。其中， 所述的另一除尘器优选为直筒形旋风除尘器。  The air dust removing device of the present invention may further comprise another dust remover, and the inlet and outlet of the other dust remover are respectively connected to the dust collecting hood and the centrifugal fan through a pipeline. Wherein, the other dust remover is preferably a straight cylindrical cyclone.
本发明在采用直筒形旋风除尘器的情况下，优选在其出口管道上 设置有一电动阀门。  In the case of a straight cylindrical cyclone, the present invention preferably has an electric valve disposed on its outlet duct.
本发明所述的封闭体优选由薄铁板组装而成。  The closure of the present invention is preferably assembled from a thin iron plate.
作为一种优选的情况，本发明所述的封闭体的内壁上附着有发泡 塑料。  As a preferred aspect, the foamed plastic is adhered to the inner wall of the closure of the present invention.
本发明所述的吊挂装置优选为双钢丝绳减振弹簧吊挂装置，优选 所述的分选机后部设置有四台联动产生直线运动的振动电机。  Preferably, the hanging device according to the present invention is a double wire rope damping spring hanging device. Preferably, the rear portion of the sorting machine is provided with four vibration motors that are linearly coupled to generate a linear motion.
本发明所述的风室优选位于所述分选机的分选床的下方并与该 床面连成一体， 优选一共设置 10 - 20个风室， 且各风室均与进风管 软连接并设置风门。  The plenum according to the present invention is preferably located below the sorting bed of the sorting machine and integrated with the bed surface, preferably a total of 10-20 plenums are arranged, and each plenum is softly connected with the inlet duct And set the damper.
作为一种优选的情况，本发明所述的风室中最靠近该分选床的入 料口位置的风室可配备有一高压离心风机作为辅助风机。  As a preferred case, the plenum of the plenum of the present invention closest to the inlet of the sorting bed may be equipped with a high pressure centrifugal fan as an auxiliary fan.
依照本发明所述的该封闭式复合式干法选煤装置， 其分选机、吸 尘罩、排料装置三者由一封闭体整体密封， 可将分选机吸尘罩内的含 尘气体及分选机周围空气都送到除尘器除尘，然后将净化后的空气排 出厂外。使用封闭体既可保证彻底的除尘， 又能避免除尘过程中分选 系统对其厂房内的环境造成影响以及环境中的其他因素对除尘造成 的影响， 此外还能降低分选系统带来的噪音。在保证干法选煤的分选 效果的同时达到了较好的除尘效果，是一种适应现代大型化生产以及 环保要求的干法选煤装置。 附图说明 The closed composite dry coal preparation device according to the present invention, the sorting machine and the suction The dust cover and the discharge device are integrally sealed by a closed body, and the dust-containing gas in the dust collecting cover of the sorting machine and the air around the sorting machine can be sent to the dust remover for dust removal, and then the purified air is discharged outside the factory. . The use of the enclosure not only ensures complete dust removal, but also avoids the influence of the sorting system on the environment inside the plant during the dust removal process and the influence of other factors in the environment on the dust removal. In addition, the noise from the sorting system can be reduced. . In order to ensure the good dust removal effect while ensuring the sorting effect of dry coal preparation, it is a dry coal preparation device that adapts to modern large-scale production and environmental protection requirements. DRAWINGS
图 1为本发明结构示意主视图 （緩冲仓及给料装置未表示）。 图 1为本发明结构示意侧视图。 ' 图 3为本发明结构示意俯视图。 具体实施方式  BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic front view of the structure of the present invention (buffer bin and feeder means not shown). Figure 1 is a schematic side view showing the structure of the present invention. Figure 3 is a schematic plan view showing the structure of the present invention. detailed description
实施例 1  Example 1
请参照图 1、 图 2以及图 3。 本实施例给出的封闭式复合式干法 选煤装置由出风管 1、 #料装置 2、 双钢丝绳减振弹簧吊挂装置 3、 床面 4、 排料档板 5、 袋式除尘器 6、 电动截料翻板 7、 除尘风机 8、 矸石出口 9、 中煤出口 10、 精煤出口 11、 风室 12、 辅助风机 13、 离 心通风机 14、 背板 15、 分选床 16、 振动电机 17、 机架 18、 分选机 19、 振动分布给料机 20、 緩冲仓 21、 吸尘罩 22、 反吹风机 23、 烟囱 24、 进风管 25、 直筒形旋风除尘器组合 26以及封闭体 27等组成。 所述分选机 19通过双钢丝绳减振弹簧吊挂装置 3安装在机架 18 上， 它由吸尘罩 22、 分选床 16、 排料装置 2组成， 其后部设置有四 台联动产生直线运动的振动电机 17， 以产生足够的震动效果； 该吸 尘罩 22位于分选机 19的上部， 该分选床 16由床面 4、 背板 15、 排 料挡板 5、 风室 12组成， 它与吸尘罩 22、 排料装置 2三者由封闭体 27整体密封， 该封闭体 27是用压制成型的薄铁板组装而成, 封闭体 27内壁喷涂发泡塑料形成保温、 降噪层， 同时， 在封闭体 27顶部设 有透明塑料瓦便于釆光，封闭体侧面设操作人员进出的门，便于操作。 该封闭体 27在相应的位置设有提供管路进出的孔， 孔与管路之间的 缝隙通过该封闭体 27内壁喷涂的发泡塑料密封。 该排料装置 2由精 煤、 中煤、 矸石的排料溜槽和精煤出口 11、 中煤出口 10、 矸石出口 9等组成， 排料溜槽内设置有电动截料翻板 7并位于分选机 19排料 边； 该风室 12位于床面 4下方并与床面 4连成一体， 共设置 16个风 室 12, 各风室 12均与进风管 25软连接并设置风门 , '位于分选床 16 入料口位置的第一风室配备有高压离心风机作为辅助风机 13 , 用来 进一步控制风量以及加强分选的效果。 Please refer to FIG. 1, FIG. 2 and FIG. The closed composite dry coal preparation device of the present embodiment is composed of an air outlet pipe 1, a material device 2, a double wire rope vibration damping spring hanging device 3, a bed surface 4, a discharge baffle plate 5, and a bag type dust collector. 6. Electric cutting flap 7, dusting fan 8, gangue outlet 9, medium coal outlet 10, clean coal outlet 11, air chamber 12, auxiliary fan 13, centrifugal fan 14, back plate 15, sorting bed 16, vibration Motor 17, rack 18, sorting machine 19, vibration distribution feeder 20, buffer tank 21, dust hood 22, blower 23, chimney 24, inlet duct 25, straight cyclone stack 26 and closure Body 27 and so on. The sorting machine 19 is mounted on the frame 18 by a double wire rope damping spring hanging device 3, which is composed of a dust collecting cover 22, a sorting bed 16, and a discharging device 2, and four linkages are arranged at the rear portion thereof. The linear motion vibration motor 17 is configured to generate a sufficient vibration effect; the dust suction cover 22 is located at an upper portion of the sorting machine 19, and the separation bed 16 is composed of a bed surface 4, a back plate 15, a discharge baffle 5, and a wind chamber 12. The composition is integrally sealed with the dust collecting cover 22 and the discharging device 2 by the closing body 27, and the closing body 27 is assembled by pressing and forming a thin iron plate, and the inner wall of the closing body 27 is sprayed with foamed plastic to form heat preservation and lowering. The noise layer, at the same time, is provided with a transparent plastic tile on the top of the closing body 27 to facilitate the glare, and the door of the closing body is provided with an operator's door for entry and exit, which is convenient for operation. The closing body 27 is provided with a hole for providing a pipe in and out at a corresponding position, and a gap between the hole and the pipe is sealed by a foamed plastic sprayed on the inner wall of the closing body 27. The discharging device 2 is composed of a discharge chute and a clean coal outlet 11 of a clean coal, a medium coal, a vermiculite, a medium coal outlet 10, a meteorite outlet 9 and the like, and an electric cutting flap 7 is arranged in the discharge chute and is located in the sorting device. The air chamber 12 is located below the bed surface 4 and is integrated with the bed surface 4. A total of 16 air chambers 12 are provided, and each of the air chambers 12 is softly connected with the air inlet tube 25 and is provided with a damper. The first air chamber at the feed port of the sorting bed 16 is equipped with a high-pressure centrifugal fan as an auxiliary fan 13 for further controlling the air volume and enhancing the effect of sorting.
所述离心通风机 14通过进风管 25、 出风管 1分别与分选机 19 的吸尘罩 22和直筒形旋风除尘器组合 26相连，其出口管道上设有电 动阀门。  The centrifugal fan 14 is connected to the dust collecting hood 22 of the sorting machine 19 and the combination of the straight cylindrical cyclone 26 through the air inlet pipe 25 and the air outlet pipe 1, and an electric valve is arranged on the outlet pipe.
所述袋式除尘器 6的进口与吸尘罩 22上的出口相接， 其上部与 除尘风机 8的进口相连， 除尘风机 8的出口与烟囱 24相接， 袋式除 尘器 6的上部装有反吹风机 23。 所述振动分布给料机 20安装在緩冲仓 21的下部， 其振幅、倾角 可以调节， 可通过汉钢丝绳减振弹簧吊挂装置 3 电动调节分选床 16 的横向、 纵向角度， 吸尘罩 22上设有两个并列出口。 The inlet of the bag filter 6 is connected to the outlet on the dust collecting hood 22, the upper part of which is connected to the inlet of the dust removing fan 8, the outlet of the dust removing fan 8 is connected to the chimney 24, and the upper part of the bag filter 6 is installed. Anti-hair dryer 23. The vibration distribution feeder 20 is installed in the lower part of the buffer tank 21, and the amplitude and the inclination angle thereof can be adjusted. The lateral and longitudinal angles of the sorting bed 16 can be electrically adjusted by the Han wire rope damping spring hanging device 3, and the dust collecting cover There are two parallel exits on the 22nd.
工作原理： 入选原煤经皮带愉送机进入緩沖仓 21 , 由振动分布 给料机 20控制给料量，并均匀分散给入分选机 19内的分选床 16上， 分选机 19后面的四台振动电机 17联动产生直线运动，使入选原煤在 分选床 16内形成具有一定厚度的料层，在振动力及风力作用下松散， 并按密度大小分层。物料上层密度较小的精煤通过排料装置 2下落到 排料溜槽内， 由精煤出口 11下部的皮带输送机外运； 密度较大的中 煤通过排料装置 2由中煤出口 10排出。 床面 4底层矸石、 硫铁矿在 振动惯性作用下集中到矸石端， 由矸石出口 9排出。 其中排料溜槽内 设置的电动截料翻板 7, 控制产品质量。 分选床 16的上方的吸尘罩 22有两个并列出口， 采用并列除尘工艺， 供风除尘部分包括离心通 风机 14、 进风管 25、 出风管 1、 吸尘罩 22、 直筒形旋风除尘器组合 26、 袋式除尘器 6、 除尘风机 8。 并列除尘工艺分为两条线路： 一是 含尘气体由吸尘罩 22的一个出口进入直筒形旋风除尘器组合 26, 除 尘后气体返回离心通风机 14, 再由离心通风机 14通过出风管 1送入 分选床 16下部各风室 12, 形成循环。 其作用是保证分选效果及减少 风机叶轮磨损； 二是部分含尘气体和干选机周围的空气由吸尘罩 22 另一出口进入袋式除尘器 6， 经过滤后的净化空气由袋式除尘器 6下 部的除尘风机 8经烟囱 24排入大气。由于实行整体密封和负压操作， _保证工作环境和大气环境不受煤尘污染。袋式除尘器 6的上部设置的 反吹风机 23可有效提高除尘效果。 Working principle: The raw coal is selected into the buffer tank 21 via the belt feeder, and the feeding amount is controlled by the vibration distribution feeder 20, and uniformly distributed to the sorting bed 16 in the sorting machine 19, behind the sorting machine 19 The four vibration motors 17 are linked to generate a linear motion, so that the selected raw coal forms a layer having a certain thickness in the separation bed 16, and is loose under the action of vibration force and wind force, and is layered according to the density. The clean coal with a lower density of the upper layer of the material falls into the discharge chute through the discharge device 2, and is transported by the belt conveyor at the lower part of the clean coal outlet 11; the medium coal with a higher density is discharged from the medium coal outlet 10 through the discharge device 2 . The bottom layer of the bed 4, vermiculite and pyrite are concentrated to the end of the vermiculite under the action of vibration inertia, and are discharged by the vermiculite outlet 9. The electric cutting flap 7 is arranged in the discharge chute to control the product quality. The dust collecting hood 22 above the sorting bed 16 has two juxtaposed outlets, adopting a parallel dust removing process, and the wind removing part includes a centrifugal fan 14, an air inlet pipe 25, an air outlet pipe 1, a dust collecting hood 22, and a straight whirlwind. The dust collector combination 26, the bag filter 6, and the dust removing fan 8. The parallel dust removal process is divided into two lines: First, the dust-containing gas enters the straight cyclone dust collector combination 26 from one outlet of the dust suction hood 22, and the gas returns to the centrifugal fan 14 after the dust removal, and then passes through the air outlet pipe by the centrifugal fan 14. 1 is fed into each of the lower chambers 12 of the sorting bed 16 to form a circulation. The function is to ensure the sorting effect and reduce the wear of the fan impeller; secondly, part of the dust-containing gas and the air around the dry sorter enter the bag filter 6 from the other outlet of the dust hood 22, and the purified air is filtered by the bag type. The dust removing fan 8 at the lower portion of the precipitator 6 is discharged into the atmosphere via the chimney 24. Due to the implementation of integral sealing and negative pressure operation, _ to ensure that the working environment and the atmospheric environment are not contaminated by coal dust. Set in the upper part of the bag filter 6 The anti-hair dryer 23 can effectively improve the dust removal effect.
本装置可以通过调节振动分布给料机 20的振幅、 倾角和分选床 16 的横向、 纵向角度， 以提高工作效率及分选效果。 电气控制部分 包括降压启动柜、 配电拒和自动控制柜， 实现自动连锁控制、 开停车 自动程序控制、 自动报警、床体停车防共振保护及系统运转状况显示 等功能。  The device can improve the working efficiency and the sorting effect by adjusting the amplitude, inclination angle of the vibration distribution feeder 20 and the lateral and longitudinal angles of the sorting bed 16. The electrical control part includes the step-down starter cabinet, the power distribution rejection and the automatic control cabinet, and realizes the functions of automatic interlock control, open-stop automatic program control, automatic alarm, bed body anti-resonance protection and system operation status display.
实施例 2  Example 2
根据实施例 1 的装置， 不同之处在于， 本实施例不设置进风管 25、 出风管 1和直筒形旋风除尘器组合 26, 离心通风机 14只从外界 进风， 仅通过袋式除尘器 6完成除尘。 本实施例不设置辅助风机 13 , 共设置 10个风室。本实施例的封闭体 27内壁不设发泡塑料层， 其上 的孔与相应管路的密封通过密封圈完成。  According to the apparatus of Embodiment 1, the difference is that the air inlet pipe 25, the air outlet pipe 1, and the straight cyclone dust collector combination 26 are not provided in the embodiment, and the centrifugal fan 14 only enters the air from the outside, and only passes the bag type dust removal. The device 6 completes the dust removal. In this embodiment, the auxiliary fan 13 is not provided, and a total of 10 air chambers are provided. The inner wall of the closing body 27 of this embodiment is not provided with a foamed plastic layer, and the sealing of the holes and the corresponding pipes on the inner wall is completed by the sealing ring.
实施例 3  Example 3
根据实施例 1的装置， 不同之处在于， 本实施例共设置 20个风 室。 以上的实施例仅用于解释本发明， 而非限制本发明。如封闭体采 用钢板或其他材料， 选用能达到本发明效果的其他除尘器， 吊挂系统 的筒单变化等而得到的方案均应落入本发明的保护范围之内。  The apparatus according to Embodiment 1 is different in that this embodiment has a total of 20 plenums. The above examples are merely illustrative of the invention and are not intended to limit the invention. If the enclosure is made of steel or other materials, the alternatives of the other precipitators that can achieve the effects of the present invention, the variations of the suspension system, etc., should fall within the scope of the present invention.

Claims

权利要求书 Claim
1、 一种封闭式复合式干法选煤装置， 包括机架、 緩冲仓、 振动分布 给料机、 分选机、 吊挂装置、 排料装置以及供风除尘装置， 其特征在 于：  1. A closed composite dry coal preparation device comprising a frame, a buffer tank, a vibration distribution feeder, a sorting machine, a hanging device, a discharge device and a wind and dust removal device, characterized in that:
所述的供风除尘装置包括一离心通风机、 一吸尘罩、 一除尘器、 一除尘风机以及复数风室；  The air dust removing device comprises a centrifugal fan, a dust collecting cover, a dust remover, a dust removing fan and a plurality of air chambers;
所述的分选机、 吸尘罩、 排料装置三者由一封闭体整体密封； 所述的离心通风机通过管路与风室相连；  The sorting machine, the dust collecting cover and the discharging device are integrally sealed by an enclosure; the centrifugal fan is connected to the air chamber through a pipeline;
所述的除尘器的进口与该吸尘罩的出口相连，该除尘器的出口与 该除尘风机的进口相连。  The inlet of the dust collector is connected to the outlet of the dust collecting hood, and the outlet of the dust collector is connected to the inlet of the dust removing fan.
2、根据权利要求 1所述的封闭式复合式干法选煤装置， 其特征在于， 所述的供风除尘装置还包括另一除尘器， 所述的另一除尘器的进、 出 口通过管路分别与该吸尘罩和该离心通风机相连。  The closed type composite dry coal preparation device according to claim 1, wherein the air supply and dust removal device further comprises another dust remover, and the inlet and outlet of the other dust remover pass through the pipe The road is connected to the dust hood and the centrifugal fan, respectively.
3、 根据权利要求 1或 2所述的封闭式复合式干法选煤装置， 其特征 在于， 所述的除尘器为袋式除尘器， 其上部装有一反吹风机。  The closed type composite dry coal preparation apparatus according to claim 1 or 2, wherein the dust remover is a bag type dust remover, and an anti-hair blower is mounted on an upper portion thereof.
4、根据权利要求 2所述的封闭式复合式干法选煤装置， 其特征在于， 所述的另一除尘器为直筒形旋风除尘器。  The closed type composite dry type coal preparation apparatus according to claim 2, wherein the other precipitator is a straight cylindrical cyclone.
5、根据权利要求 4所述的封闭式复合式干法选煤装置， 其特征在于， 所述的直筒形旋风除尘器的出口管道上设置有一电动阀门。  The closed type composite dry coal preparation device according to claim 4, wherein an electric valve is disposed on the outlet pipe of the straight cylindrical cyclone.
6、根据权利要求 1所述的封闭式复合式干法选煤装置， 其特征在于， 所述的封闭体由薄铁板组装而成。  The closed type composite dry coal preparation apparatus according to claim 1, wherein the enclosure is assembled from a thin iron plate.
7、 根据权利要求 1或 2或 6所述的封闭式复合式干法选煤装置， 其 特征在于， 所述的封闭体的内壁上附着有发泡塑料。 7. The closed composite dry coal preparation device according to claim 1 or 2 or 6, wherein It is characterized in that a foamed plastic is adhered to the inner wall of the enclosure.
8、根据权利要求 1所述的封闭式复合式干法选煤装置， 其特征在于， 所述的吊挂装置为双钢丝绳减振弹簧吊挂装置，所述的分选机后部设 置有四台联动产生直线运动的振动电机。  The closed type composite dry coal preparation device according to claim 1, wherein the hanging device is a double wire rope damping spring hanging device, and the rear portion of the sorting machine is provided with four The table is linked to a vibration motor that produces a linear motion.
9、根据权利要求 1所述的封闭式复合式干法选煤装置， 其特征在于， 所述风室位于所述分选机的分选床的下方并与该床面连成一体，一共 设置 10 - 20个风室， 各风室均与进风管软连接并设置风门。  The closed type composite dry coal preparation device according to claim 1, wherein the air chamber is located below the sorting bed of the sorting machine and is integrated with the bed surface, and is set in total. 10 - 20 plenums, each of which is softly connected to the inlet duct and has a damper.
10、根据权利要求 1或 2或 9所述的封闭式复合式干法选煤装置，其 特征在于，所述的风室中最靠近该分选床的入料口位置的风室配备有 一高压离心风机作为辅助风机。  The closed type composite dry coal preparation device according to claim 1 or 2 or 9, wherein the plenum of the plenum closest to the inlet of the sorting bed is equipped with a high pressure The centrifugal fan acts as an auxiliary fan.
PCT/CN2007/001970 2006-06-23 2007-06-25 Close combined dry coal-sorting device WO2008000167A1 (en)

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