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WO2018196479A1 - 一种气力输送给料机及输送管连接结构 - Google Patents

一种气力输送给料机及输送管连接结构 Download PDF

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Publication number
WO2018196479A1
WO2018196479A1 PCT/CN2018/077495 CN2018077495W WO2018196479A1 WO 2018196479 A1 WO2018196479 A1 WO 2018196479A1 CN 2018077495 W CN2018077495 W CN 2018077495W WO 2018196479 A1 WO2018196479 A1 WO 2018196479A1
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WIPO (PCT)
Prior art keywords
conveying
pipe
pneumatic conveying
port
upper flange
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PCT/CN2018/077495
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English (en)
French (fr)
Inventor
马云峰
何海熙
王蜀生
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Application filed by CISDI Engineering Co Ltd filed Critical CISDI Engineering Co Ltd
Priority to AU2018259465A priority Critical patent/AU2018259465B2/en
Priority to RU2019137730A priority patent/RU2734648C1/ru
Priority to MYPI2019006111A priority patent/MY198263A/en
Publication of WO2018196479A1 publication Critical patent/WO2018196479A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
    • B65G53/4616—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning parallel to flow

Definitions

  • the invention belongs to the field of bulk material pneumatic conveying equipment, and particularly relates to a pneumatic conveying feeder and a conveying pipe connecting structure.
  • the pneumatic conveying of bulk materials has high requirements on conveying capacity and conveying precision. Usually, it is transported by a vertical rotary feeder, which can achieve higher conveying precision than the ordinary fluidized pressing method.
  • the Chinese patents that are commonly used in vertical feeders currently used in engineering are: 201220205422.9, 201020619756.1, 201220673793.X, 201320480948.2, 201620306364.7, 201620622572.8. From the published information, the feeding and discharging of a single feeder Each port is one, and adopts a 180° phase-displacement arrangement to form a single-channel material conveying mode in the feeder.
  • the main disadvantages are: the space utilization rate of the single-channel structure is low, and the equipment feeding capacity is insufficient.
  • the investment cost is relatively high; in order to improve the single-outlet discharging capacity, the outlet opening is large, resulting in a large waste of blowing gas, and the user operating cost is high; the single-channel structure inlet and outlet are 180° different, causing the injection tank to be blanked. Eccentricity, unable to form a stable overall unloading; uneven layout of the blowing port also caused a certain amount of gas consumption. Since a single-channel structure can only be blown corresponding to one reactor, at least one feeder is required for one reactor, and it is often necessary to configure multiple feeders for one reactor to achieve the blowing capability.
  • the disclosed patent 201210217828.3 is a two-channel star feeder, which is quite different from the traditional vertical rotary feeder in and out of the form and working mode. It is mainly in the form of a horizontal star valve, and the public information shows that Inherent characteristics, this form is less used in applications where accuracy is required.
  • an object of the present invention is to provide a pneumatic conveying feeder with high conveying precision, high conveying density, compact and efficient structure, and flexible and convenient control.
  • the invention also provides a conveying pipe connecting structure suitable for a pneumatic conveying feeder, which can be adapted to various working conditions by improving the piping mode.
  • a pneumatic conveying feeder comprising an intermediate cylinder, an upper flange and a lower flange correspondingly disposed at two ends of the intermediate cylinder, an impeller disposed in the intermediate cylinder, and a sealing bearing seat disposed under the lower flange;
  • the upper flange and the lower flange are correspondingly provided with a feeding port and a discharging port, and the discharging port is correspondingly connected with a discharging pipe, the impeller and the through-sealing
  • the rotating shaft of the bearing seat is connected and driven to rotate by a transmission connected to the other end of the rotating shaft;
  • the feeding port has at least two, evenly spaced around the circumferential direction of the flange, the number of the discharging port and the feeding port The same and the discharge port and the feed port are staggered;
  • the lower surface of the upper flange is provided with a grooved cloth air chamber at a position corresponding to each discharge port, and the air groove of the
  • an orifice plate is arranged below the grooved air chamber, and the orifice plate is arranged with a plurality of gas jet holes.
  • the feed port has two inlets disposed on the upper flange at an angle of 180°; the discharge port has two, and the projection angle between the two adjacent feed ports and the discharge port is 90°. .
  • the two feed ports are fan-shaped holes of the same size, and the feed port is provided with a rectangular strip-shaped strip, and the strip-shaped plate center line does not pass through the center of rotation of the impeller.
  • the transmission device comprises a transmission reducer connected to the rotating shaft, and a variable frequency motor connected to the transmission reducer; the lower part of the sealed bearing seat is provided with a cavity, and the circumferential direction of the sealed bearing seat corresponding to the cavity A detecting element is arranged on the side wall, and an induction plate is arranged on the rotating shaft in the cavity.
  • a hard alloy layer is fixed by surfacing on the portion of the feeder that is easily worn by the material.
  • the intermediate cylinder is provided with a pressure equalizing exhaust pipe, and the equalizing exhaust pipe correspondingly flows through the channel side of the discharge port; the pressure equalizing exhaust pipe is connected with the spray can A check valve is provided on the pipeline.
  • an arched guiding surface is disposed on the upper surface of the upper flange.
  • cross-sectional area of the cavity formed between the impeller blades is decreased from top to bottom.
  • the invention also discloses a conveying pipe connecting structure suitable for the pneumatic conveying feeder as described above, which comprises a conveying pipe which is connected with the discharging pipe and the reactor in one-to-one correspondence, and a gas source is connected to the front end of each conveying pipe; any conveying pipe
  • the pipes are respectively connected with the remaining conveying pipes through the branch pipes, and the material cutting valves are arranged on each conveying pipe and each branch pipe, and the material shut-off valve disposed on each conveying pipe is located between the branch pipe outlet and the inlet of the conveying pipe.
  • the utility model has the beneficial effects that the feeder has at least two feeding ports and a discharging port, and forms a multi-channel material conveying structure with the rotating impeller, thereby improving the space utilization of the device under the premise of ensuring the feeding precision.
  • the rate thereby increasing the feeding capacity of a single device, in order to increase the feed filling rate of the inlet, the operating speed of the impeller can be appropriately reduced, thereby making the operation of the device more reliable.
  • the feeding port is provided with a strip plate and a round table-shaped impeller hub, so that the material is thoroughly mixed and filled with the material of the impeller cavity at the feeding port to prevent bridging.
  • the air blown orifice plate is used to effectively increase the blowing efficiency and the blowing concentration, which saves the gas consumption for the injection and saves the operation cost for the user.
  • the speed detecting component is arranged in the cavity position of the sealed bearing housing to facilitate sealing, which can effectively prevent signal interference and improve the control precision of the device.
  • the wear-resistant position is fixed with cemented carbide by surfacing, which improves the service life and stability of the equipment.
  • the connection structure of the conveying pipe suitable for the feeder has various communication forms, which provides a more economical and flexible configuration mode for the feeding of the multi-reactor, and saves the investment cost for the user.
  • Figure 1 is a schematic view of the overall arrangement of the present invention
  • Figure 2 is a schematic view showing the transportation process of materials inside the feeder
  • Figure 3 is a cross-sectional view showing the internal structure of the feeder
  • Figure 4 is a top plan view of the feeder.
  • the pneumatic conveying feeder of the present invention comprises an intermediate cylinder 2, an upper flange 1 and a lower flange 4 correspondingly disposed at both ends of the intermediate cylinder 2, and an impeller 3 disposed in the intermediate cylinder 2.
  • a sealing bearing seat 5 disposed under the lower flange 4; the upper flange 1 and the lower flange 4 are correspondingly provided with a feeding port 14 and a discharging port 41, and the discharging port 41 is correspondingly connected with a discharging material a tube 42, the impeller 3 is connected to a rotating shaft 51 passing through the sealed bearing housing 5, and is driven to rotate by a transmission connected to the other end of the rotating shaft 51; at least two of the feeding ports 14 are wound around the flange 1
  • the circumferential direction is evenly spaced, the discharge port 41 is the same as the feed port 14, and the discharge port 41 and the feed port 14 are alternately arranged; the lower surface of the upper flange 1 corresponds to each discharge port 41.
  • a trough-shaped air chamber 12 is disposed at the side of the upper flange 1 and an air inlet hole 11 communicating with the air chamber 12 of the trough-shaped cloth is provided.
  • the cross-sectional shape of the trough-shaped air chamber 12 and the discharge port 41 are provided. The shape is the same.
  • the upper surface of the upper flange is connected to the bottom of the blowing tank 7, and the upper and lower surfaces of the intermediate cylinder are correspondingly connected with the lower surface of the upper flange and the lower flange, and the impeller 3 is installed in the middle cylinder and with the middle cylinder Concentric and high in height with the height of the middle cylinder, the sealed bearing housing 5 is disposed at the lower portion of the lower flange, the lower portion of the rotating shaft 51 is connected with the transmission reducer 52 in the transmission device, the transmission reducer 52 is connected with the variable frequency motor 53, and the upper portion of the rotating shaft 51 is passed The sealed bearing seat extends into the center of the impeller 3 and drives the impeller 3 to rotate together.
  • a sealing ring (not shown) is also provided between the upper flange 1 and the intermediate cylinder 2 connecting surface, and between the intermediate cylinder 2 and the lower flange connecting surface, the sealing ring The compression is connected by bolts.
  • the discharge port 41 has two projection clamps between two adjacent feed ports and a discharge port.
  • the angle is 90°.
  • the material falling from the spray can enters the cavity between the blades of the impeller 3 through the two feed ports 14, respectively, and the material is respectively taken to the discharge port 41 at the most circumferential position through the rotation of the impeller 3, through two
  • the feed port 14, the impeller chamber 31 and the two discharge ports 41 form a two-channel material delivery structure.
  • three sets of staggered feed ports and discharge ports may be provided according to the situation to form a three-channel material conveying structure.
  • the lower surface of the upper flange 1 is disposed at a position corresponding to each discharge port 41 of the lower flange 4, and a groove-shaped air chamber 12 matching the shape of the discharge port is provided, and the side surface of the upper flange 1 is provided with a groove shape.
  • the air inlet hole 11 communicating with the air chamber 12 is provided with an orifice plate 13 at the lower portion of the grooved air chamber 12, and a plurality of gas injection holes are arranged in the array on the orifice plate 13, and the orifice plate 13 can be opposite to the groove of the groove-shaped air chamber 12.
  • the plugging is performed so that the gas can only be sprayed through the gas injection holes in the orifice plate 13, so that the material at the discharge port 41 is injected by the high pressure gas from the orifice plate 13 through the discharge port and the discharge pipe.
  • the connected material conveying pipe Corresponding to the connected material conveying pipe.
  • the two feed ports 14 disposed on the upper flange are fan-shaped cross-section holes of the same size, and the fan-shaped cross-sectional hole size is calculated according to the flow property of the material to ensure that the material is sufficiently filled in the impeller cavity 31.
  • two strip-shaped plates 15 may be disposed at each of the feed ports 14, and the center line of each of the strip-shaped plates 15 does not pass through the center of rotation of the impeller, so that the upper surface of the impeller cavity 31
  • the material is subjected to additional centripetal force or centrifugal force when moving relative to the strip plate 15, so that the material moves in the impeller cavity to achieve the purpose of mixing and filling the material in the impeller cavity.
  • the shape of the strip plate 15 is preferably a rectangular parallelepiped shape.
  • a cavity is disposed at a position where the lower portion of the sealed bearing housing 5 is connected to the transmission reducer 52, and the cavity should be insulated from the bearing installed in the sealed bearing housing 5 to prevent lubricating oil from leaking into the cavity.
  • An opening is formed on the circumferential side wall of the sealed bearing housing 5 corresponding to the cavity, and the detecting element 54 is disposed at the opening, and the sensing plate 55 is correspondingly disposed on the rotating shaft 51 in the cavity, and the detecting component 54 passes The induction plate 55 on the induction shaft 51 pulses to detect the rotational speed of the shaft 51.
  • the hard alloy layer 6 is fixed by surfacing in a position where the inner surface of the discharge pipe 42 is easily worn.
  • the intermediate cylinder 2 in the embodiment is provided with a pressure equalizing exhaust pipe 21, and the pressure equalizing exhaust pipe 21 corresponding to the non-material flowing through the discharge port 41 flows through the passage side (from the feed).
  • the material entering the impeller cavity is brought into the feed port by the rotating impeller.
  • the rotating impeller pushes the material into the discharge port from the side of the discharge port in the direction of rotation.
  • the push-in side is the material flowing through the channel side, and the other side
  • the non-material flows through the channel side; the pressure equalizing exhaust pipe 21 and the blowing blow tank 7 are connected through the communication line, and the check line D01 is arranged on the communication line.
  • the pressure equalizing exhaust pipe 21 can prevent backflushing of the material of the feed port by the high pressure gas, prevent the material of the spray can 7 from entering the pressure equalizing exhaust pipe 21, and the check valve D01 can prevent the material from directly entering the feed through the connecting pipe. machine.
  • the present embodiment fixes an arched guiding surface (not shown) on the upper surface of the upper flange 1 (not at the position of the feed port) to guide the material.
  • Feed port 14 The fluidizing pores are arranged on the arched guiding surface so that the outlet direction of the air holes faces the feeding port 14, which further enhances the fluidity of the material at the upper surface of the upper flange 1.
  • the cross-sectional area of the cavity 31 formed between the impeller blades is decreased from top to bottom. It facilitates the flow of material and the full filling of the cavity.
  • the impeller hub in the embodiment is in the shape of a truncated cone, and the truncated bus bar can adopt a curved flow line shape such as a hyperbola which is favorable for material flow.
  • the shape of the truncated bus bar can be selected according to the manufacturing difficulty balance.
  • a sealed bearing seat can be further fixed at the center of the upper flange 1, and the lubricating grease of the bearing can be supplied through the upper flange 1 (not shown) to enhance Stability of the operation of the impeller 3.
  • a gas seal structure may also be provided, and the gas seal gas pressure should be slightly higher than the pressure of the spray can.
  • fluidized pores may be arranged on the inner wall of the discharge port 41 or/and the discharge pipe 42.
  • the pores shall be provided with a plurality of small holes and fluidized.
  • the direction of gas injection should be close to the direction of material flow.
  • the utility model relates to a conveying pipe connecting structure suitable for the above pneumatic conveying feeder, which comprises a conveying pipe which is connected with the discharge pipe and the reactor one by one, and a gas source is connected to the front end of each conveying pipe; any one of the conveying pipes passes through the branch pipe respectively
  • the other conveying pipes are correspondingly connected, and each material conveying pipe and each branch pipe are provided with a material shut-off valve, and the material shut-off valve disposed on each conveying pipe is located between the branch pipe outlet and the inlet of the conveying pipe.
  • the connecting structure of the conveying pipe is connected with the outlet of the feeding machine by two material conveying pipes 01 and 02, and the gas source T01 and T02 for blowing and conveying are connected at the front end of each conveying pipe 01 and 02.
  • the materials entering the two conveying pipes can be sprayed and conveyed in the direction of the reactors F1 and F2, and two conveying control modes can be adopted according to the use requirements;
  • the two-channel pneumatic conveying feeder feeds only one reactor: two conveying pipes 01 and conveying pipes 02 are merged at a suitable position to a conveying pipe 01 or 02 through a branch pipe, and then the converging The conveying pipe 01 or 02 is connected to a reactor F1 or F2;
  • the two-channel pneumatic conveying feeder feeds two reactors: two conveying pipes 01 and a conveying pipe 02 are respectively connected to the two reactors F1 and F2, and the conveying pipe 01 and the conveying pipe 02 are appropriately
  • the positions are provided with branch pipes communicating with each other to form a branch pipe cross-converging conveying structure, and material shut-off valves S01 and S02 are respectively arranged near the branch pipe outlets of the conveying pipes 01 and 02, and material shut-off valves V01 are correspondingly arranged on the conveying pipes 01 and 02, V02, the material shut-off valves V01 and V02 are respectively located between the branch pipe outlets and the inlets of the conveying pipes 01 and 02.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

公开了一种气力输送给料机，包括中间圆筒（2）、上法兰（1）、下法兰（4）、叶轮（3）以及传动装置；通过在上法兰（1）上设置至少两个进料口（14），并使出料口（41）与进料口（14）数量相同且出料口（41）与进料口（14）交错布置；实现设备空间利用率的提高，从而提高单台设备的给料能力；通过在上法兰（4）下表面与各出料口（41）相对应的位置处设有槽形布气腔（12），改变了喷吹方式，从而提高了同口径单台设备对物料的喷吹能力和喷吹浓度，降低了设备运行成本。还公开了一种输送管连接结构，通过改变输送管道间的连接关系，在保证喷吹物料流量精度的情况下，不但可以按传统方式一台给料机向一个反应器喷吹，还能实现一台给料机对两个反应器喷吹，从而为用户节省了成本。

Description

一种气力输送给料机及输送管连接结构 技术领域
本发明属于散装物料气力输送设备领域，具体涉及一种气力输送给料机及输送管连接结构。
背景技术
在冶金等行业中对散装物料气力输送对输送能力和输送精度都有较高要求，通常采用立式旋转给料机进行输送，能够达到比普通流化加压方式较高的输送精度。当前常在工程中应用的立式给料机公开的中国专利有：201220205422.9、201020619756.1、201220673793.X、201320480948.2、201620306364.7、201620622572.8，从公开的资料显示，单台给料机其进料口与出料口均为各一个，且采用相错180°布置方式，在给料机内形成单通道物料输送方式，其主要缺点在于：单通道结构的设备空间利用率较低，设备给料能力不足，用户投资成本较高；为了提高单出口下料能力，出口开孔较大，造成喷吹用气浪费很大，用户运行成本较高；单通道结构进出料口相差180°，造成喷吹罐下料偏心，无法形成稳定的整体下料；喷吹口结构布置不均匀也造成了一定的用气量浪费。由于单通道结构只能对应一个反应器进行喷吹，所以一台反应器至少需要配一台给料机，而且经常需要为一个反应器配置多台给料机才能达到喷吹能力。
公开的专利201320485328.8和201310346847.0显示，具有多个进料口和出料口，但其进出料口形状及叶片形式或物料在给料机内的输送方式与传统立式旋转给料机有较大的不同，其方案主要在解决传统流化加压方式的精度问题，由于其进出料口形状、叶片形状、和输送方式的设置限定，与普通立式给料机相比，在设备能力和设备空间利用率没有得到提升，其所述的配套喷吹输送方式比较单一。
公开的专利201210217828.3是一种双通道星形给料器，与传统立式旋转给料机进出料形式和工作方式有较大区别，其主要为卧式星形阀形式，公开资料显示，由于其固有的特性，该种形式在精度要求较高的场合应用较少。
发明内容
有鉴于此，本发明的目的在于提供一种输送精度高、输送浓度高、结构紧凑高效且控制灵活方便的气力输送给料机。本发明还提供了一种适用于气力输送给料机的输送管连接结构，通过改进布管方式，使其可适应多种工况需求。
为达到上述目的，本发明提供如下技术方案：一种气力输送给料机，包括中间圆筒、对应设置在中间圆筒两端的上法兰与下法兰、设置在中间圆筒内的叶轮以及设置在下法兰下方的密封轴承座；所述上法兰与下法兰上对应设有进料口与出料口，所述出料口上对应连接有排料管，所述叶轮与穿过密封轴承座的转轴相连接，并由连接在转轴另一端的传动装置驱动旋转；所述进料口至少有两个，绕上法兰圆周方向均匀间隔设置，所述出料口与进料口数量相同且出料口与进料口交错布置；所述上法兰下表面与各出料口相对应的位置处设有槽形布气腔，上法兰侧面处设有与槽形布气腔相连通的进气孔，所述槽形布气腔的横截面形状与出料口形状相同。
进一步，所述槽形布气腔下方设有孔板，所述孔板上阵列布设有若干个喷气孔。
进一步，所述进料口有两个，呈180°夹角设置在上法兰上；所述出料口有两个，两相邻进料口与出料口间的投影夹角为90°。
进一步，两进料口为尺寸相同的扇形孔，所述进料口处设有长方体形的条形板，且条形板中线不穿过叶轮旋转中心。
进一步，所述传动装置包括与转轴相连接的传动减速机、以及与传动减速机相连接的变频电机；所述密封轴承座下部设有空腔，密封轴承座上与空腔相对应的周向侧壁上设有检测元件，位于空腔内的转轴上对应设有感应板。
进一步，给料机上易被物料磨损的部位通过堆焊固设有硬质合金层。
进一步，所述中间圆筒上设有均压排气管，所述均压排气管对应设置在出料口的非物料流经通道侧；所述均压排气管与喷吹罐的连通管路上设有逆止阀。
进一步，所述上法兰上表面处设有拱形导引面。
进一步，所述叶轮叶片间形成的腔格截面积由上至下递减。
本发明还公开一种适用于如上述气力输送给料机的输送管连接结构，包括与排料管及反应器一一对应连接的输送管道，各输送管道前端连接有气源；任一条输送管道均通过支管分别与其余各输送管道对应连接，各输送管道与各支管上均设有物料切断阀，设置在各输送管道上的物料切断阀位于输送管道的支管出口和入口之间。
本发明的有益效果在于：该给料机中至少设有两个进料口和出料口，与旋转叶轮形成多通道物料输送结构，在保证给料精度的前提下，提高了设备的空间利用率，从而提高单台设备的给料能力，为了提高其进料口进料填充率，可以适当降低叶轮运转速度，从而使设备运转更加可靠。进料口处设有条形板以及采用圆台形的叶轮毂，使物料在进料口对叶轮腔格的物料进行充分混合填充并防止架桥现象。采用布气腔孔板喷吹，可有效提高喷吹效率和喷吹 浓度，节约了喷吹用气量，为用户节省了运行成本。其速度检测元件设置在密封轴承座空腔位置利于封闭，能有效防止信号干扰，提高了设备的控制精度。易磨损位置通过堆焊固设有硬质合金，进而提高了设备的使用寿命和稳定性。适用于给料机的输送管连接结构有多种连通形式，为多反应器的供料提供了更加经济、灵活的配置方式，为用户节省投资成本。
附图说明
为了使本发明的目的、技术方案和有益效果更加清楚，本发明提供如下附图进行说明：
图1为本发明的总体布置示意图；
图2为物料在给料机内部输运过程示意图；
图3为给料机的内部结构剖视图；
图4为给料机的俯视图。
具体实施方式
下面将结合附图，对本发明的优选实施例进行详细的描述。
如图所示，本发明中的气力输送给料机，包括中间圆筒2、对应设置在中间圆筒2两端的上法兰1与下法兰4、设置在中间圆筒2内的叶轮3以及设置在下法兰4下方的密封轴承座5；所述上法兰1与下法兰4上对应设有进料口14与出料口41，所述出料口41上对应连接有排料管42，所述叶轮3与穿过密封轴承座5的转轴51相连接，并由连接在转轴51另一端的传动装置驱动旋转；所述进料口14至少有两个，绕上法兰1圆周方向均匀间隔设置，所述出料口41与进料口14数量相同且出料口41与进料口14交错布置；所述上法兰1下表面与各出料口41相对应的位置处设有槽形布气腔12，上法兰1侧面处设有与槽形布气腔12相连通的进气孔11，所述槽形布气腔12的横截面形状与出料口41形状相同。
具体的，上法兰上表面与喷吹罐7底部连接，中间圆筒的上、下表面对应与上法兰下表面以及下法兰连接，叶轮3安装在中间圆筒内并与中间圆筒同心且高度与中间圆筒高度一致，密封轴承座5设置在下法兰下部，转轴51下部分与传动装置中的传动减速机52连接，传动减速机52与变频电机53连接，转轴51上部分通过密封轴承座伸入叶轮3中心并带动叶轮3一同旋转。因给料机内部需承受高压，故上法兰1与中间圆筒2连接面、以及中间圆筒2和下法兰连接面之间还设有密封圈(图中未示出)，密封圈的压紧通过螺栓连接。
本实施例中的进料口14有两个，呈180°夹角设置在上法兰1上；所述出料口41有两个，两相邻进料口与出料口间的投影夹角为90°。该结构可提高设备的空间利用率，从而提高单台设备的给料能力。
从喷吹罐落下的物料分别通过两个进料口14进入叶轮3叶片之间的腔格中，通过叶轮3旋转，物料分别被带到周向最近位置的出料口41处，通过两个进料口14、叶轮腔格31和两个出料口41，形成了双通道的物料输送结构。当然，在布置空间满足需求的情况下，也可根据情况设置三组交错布置的进料口与出料口，以形成三通道的物料输送结构。
本实施例中，上法兰1下表面正对下法兰4每个出料口41位置设置一个与出料口形状匹配的槽形布气腔12，上法兰1侧面设置有与槽形布气腔12连通的进气孔11，槽形布气腔12下部安装有孔板13，孔板13上阵列布设有若干个喷气孔，孔板13可对槽形布气腔12的槽口进行封堵，使气体只能通过孔板13上的喷气孔对物料进行喷吹，从而使出料口41处的物料被来自于孔板13的高压气体经由出料口和排料管喷入对应连接的物料输送管道中。
本实施例中，设置在上法兰上的两个进料口14为相同尺寸的扇形截面孔，扇形截面孔尺寸根据物料的流动性质进行计算所得，以保证物料在叶轮腔格31进行充分填充。为使物料在叶轮腔格31中分布均匀，可在各进料口14处设置两根条形板15，各条形板15中线不穿过叶轮旋转中心，使得叶轮腔格31中上表面的物料在与条形板15做相对运动时受到额外的向心力或离心力，从而使物料在叶轮腔格中移动，达到物料在叶轮腔格混合填充的目的。此处条形板15形状优选长方体形。
本实施例中，密封轴承座5下部与传动减速机52连接位置设置有空腔，该空腔应与密封轴承座5里面安装的轴承进行隔绝，防止润滑油漏入该腔。密封轴承座5上与空腔相对应的周向侧壁上设有开孔，开孔处设有检测元件54，位于空腔内的转轴51上则对应设有感应板55，检测元件54通过感应转轴51上的感应板55脉冲检测转轴51转速。
为提高设备磨损部位的使用寿命，本实施例在给料机上的上法兰1下表面、下法兰4上表面、中间圆筒2内表面、叶轮3外表面、出料口41内表面、排料管42内表面等易于磨损位置采用堆焊方式固设有硬质合金层6。
作为上述方案的进一步改进，本实施例中的中间圆筒2上设有均压排气管21，均压排气管21对应设置在出料口41的非物料流经通道侧(从进料口进入叶轮腔格的物料被旋转的叶轮带入进料口，旋转的叶轮按旋转方向从出料口一侧将物料推入出料口，推入侧为物料流经通道侧，另一侧则为非物料流经通道侧)；均压排气管21与喷吹罐7通过连通管路连接，连通管路上设有逆止阀D01。均压排气管21可防止高压气体对进料口物料的反吹，阻止了喷吹罐7物料进入均压排气管21，逆止阀D01则可防止物料通过连通管路直接进入给料机。
为了增强物料在上法兰1上表面处的流动性，本实施例在上法兰1上表面(非进料口位置)固设拱形导引面(图中未示出)，将物料导向进料口14。在拱形导引面上设置流化气孔， 使气孔出口方向朝向进料口14，能进一步增强物料在上法兰1上表面处的流动性。
作为上述方案的进一步改进，所述叶轮叶片间形成的腔格31截面积由上至下递减。便于物料的流动和对腔格的充分填充。本实施例中的叶轮轮毂为圆台形状，圆台母线可采用利于物料流动的双曲线等曲线流线形状，具体实施时可根据制造难度平衡选择圆台母线形状。
作为上述方案的进一步改进，还可以在上法兰1的中心处再固设一个密封轴承座，其轴承的润滑油脂可通过上法兰1开设管路供给(图中未示出)，以增强叶轮3运行的稳定性。
为防止粉尘进入轴承，除在密封轴承座5内安装密封防尘圈外，还可以设置气封结构，其气封气压力应略高于喷吹罐的压力。
为增强物料在排料管42的流动性，可在出料口41内壁或/和排料管42上设置流化气孔，为便于流化均匀性，气孔应设置成多个小孔，流化气体喷吹方向应接近物料流动的方向。
一种适用于上述气力输送给料机的输送管连接结构，包括与排料管及反应器一一对应连接的输送管道，各输送管道前端连接有气源；任一条输送管道均通过支管分别与其余各输送管道对应连接，各输送管道与各支管上均设有物料切断阀，设置在各输送管道上的物料切断阀位于输送管道的支管出口和入口之间。
本实施例中，该输送管连接结构采用两路物料输送管道01、02与上述给料机出口配套连接，在每条输送管道01、02前端对应连接有喷吹输送用的气源T01、T02，使进入这两条输送管道的物料能够向反应器F1、F2方向进行喷吹输送，根据使用需求，可以采用两种输送控制方式；
第一种方式，双通道气力输送给料机只对一个反应器进行供料：两条输送管道01和输送管道02通过一条支管在适当位置汇合到一条输送管道01或02上，再由该汇合输送管道01或02与一个反应器F1或F2相连；
第二种方式，双通道气力输送给料机对两个反应器进行供料：两条输送管道01和输送管道02分别连接两个反应器F1和F2，输送管道01和输送管道02上在适当位置彼此设有相互连通的支管，形成支管交叉汇合输送结构，输送管道01、02对应支管出口附近分别设置有物料切断阀S01、S02，输送管道01、02上则对应设有物料切断阀V01、V02，物料切断阀V01、V02分别位于输送管道01、02的支管出口和入口之间。当反应器F1和F2同时需要物料时，S01和S02关闭，V01和V02打开，由输送管道01、02分别对反应器F1、F2喷吹输送；当反应器F1和F2只有其中一个需要物料时，通过控制S01、S02、V01、V02使给料机排出的物料仅向一个反应器供料。
最后说明的是，以上优选实施例仅用以说明本发明的技术方案而非限制，尽管通过上述 优选实施例已经对本发明进行了详细的描述，但本领域技术人员应当理解，可以在形式上和细节上对其作出各种各样的改变，而不偏离本发明权利要求书所限定的范围。

Claims (10)

  1. 一种气力输送给料机，包括中间圆筒、对应设置在中间圆筒两端的上法兰与下法兰、设置在中间圆筒内的叶轮以及设置在下法兰下方的密封轴承座；所述上法兰与下法兰上对应设有进料口与出料口，所述出料口上对应连接有排料管，所述叶轮与穿过密封轴承座的转轴相连接，并由连接在转轴另一端的传动装置驱动旋转；其特征在于：所述进料口至少有两个，绕上法兰圆周方向均匀间隔设置，所述出料口与进料口数量相同且出料口与进料口交错布置；所述上法兰下表面与各出料口相对应的位置处设有槽形布气腔，上法兰侧面处设有与槽形布气腔相连通的进气孔，所述槽形布气腔的横截面形状与出料口形状相同。
  2. 根据权利要求1所述的气力输送给料机，其特征在于：所述槽形布气腔下方设有孔板，所述孔板上阵列布设有若干个喷气孔。
  3. 根据权利要求1所述的气力输送给料机，其特征在于：所述进料口有两个，呈180°夹角设置在上法兰上；所述出料口有两个，两相邻进料口与出料口间的投影夹角为90°。
  4. 根据权利要求3所述的气力输送给料机，其特征在于：两进料口为尺寸相同的扇形孔，所述进料口处设有条形板，且条形板中线不穿过叶轮旋转中心。
  5. 根据权利要求1所述的气力输送给料机，其特征在于：所述传动装置包括与转轴相连接的传动减速机、以及与传动减速机相连接的变频电机；所述密封轴承座下部设有空腔，密封轴承座上与空腔相对应的周向侧壁上设有检测元件，位于空腔内的转轴上对应设有感应板。
  6. 根据权利要求1所述的气力输送给料机，其特征在于：给料机上易被物料磨损的部位通过堆焊固设有硬质合金层。
  7. 根据权利要求1所述的气力输送给料机，其特征在于：所述中间圆筒上设有均压排气管，所述均压排气管对应设置在出料口的非物料流经通道侧；所述均压排气管与喷吹罐的连通管路上设有逆止阀。
  8. 根据权利要求1所述的气力输送给料机，其特征在于：所述上法兰上表面处设有拱形导引面。
  9. 根据权利要求1所述的气力输送给料机，其特征在于：所述叶轮叶片间形成的腔格截面积由上至下递减。
  10. 一种适用于如权利要求1-9任一项所述的气力输送给料机的输送管连接结构，其特征在于：包括与排料管及反应器一一对应连接的输送管道，各输送管道前端连接有气源；任 一条输送管道均通过支管分别与其余各输送管道对应连接，各输送管道与各支管上均设有物料切断阀，设置在各输送管道上的物料切断阀位于输送管道的支管出口和入口之间。
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