Screw conveyer capable of conveying materials, circulating carrier gas and returning materials

Abstract

The utility model relates to the technical field of raw material processing, in particular to a spiral conveyor capable of conveying materials, circulating carrier gas and returning the materials. Comprising a cylinder body, a hanging support, an end plate and a shell, the hanging support is installed in the cylinder body, and the end plate is installed on the side of the cylinder body; a shell is mounted between the end plates; the device further comprises a supporting assembly, a conveying assembly, a feeding and discharging assembly and a sealing assembly, and the supporting assembly is installed at the bottom of the shell and used for supporting the shell; the conveying assembly is installed in the shell and used for conveying materials and leading out carrier gas generated in a kiln and a rotary drying machine at the same time. The feeding and discharging assembly is arranged on the shell and used for enabling materials to enter the spiral conveyor or flow out of the spiral conveyor. And the sealing assembly is mounted in the shell and is used for sealing to prevent materials from being mixed with carrier gas.

Description

Technical Field

[0001] This utility model relates to the technical field of raw material processing, specifically to a screw conveyor that can transport materials, circulate air, and return materials. Background Technology

[0002] A kiln is a device used for high-temperature firing of materials or products, widely used in ceramics, glass, metallurgy, chemical and other fields. It generates a large amount of heat through fuel combustion, which is then transferred to the materials inside the kiln via heat exchange. Kiln design typically includes refractory materials, insulation materials, and a control system to ensure that materials can be processed at the required temperature and atmosphere.

[0003] However, in current kiln and rotary dryer systems, materials need to be conveyed into the kiln and rotary dryer cylinders, but at the same time, the carrier gas generated inside the kiln and rotary dryer needs to be extracted, and powder will be carried in the carrier gas. Existing equipment cannot meet the above process requirements at the same time.

[0004] Therefore, the present invention provides a screw conveyor that can transport materials, circulate carrier air, and return materials, in order to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is that in the current kiln and rotary dryer system, it is necessary to transport materials into the kiln and rotary dryer cylinder, but at the same time, the carrier gas generated in the kiln and rotary dryer needs to be drawn out, and there will be powder entrainment in the carrier gas. The existing equipment cannot meet the above process requirements at the same time.

[0006] This utility model provides the following technical solution: a screw conveyor for material conveying, carrier gas circulation, and material return, comprising a cylinder, a hanging support, end plates, and a shell. The hanging support is installed inside the cylinder, and the end plates are installed on the sides of the cylinder. The shell is installed between the end plates. It also includes a support assembly, a conveying assembly, an inlet / outlet assembly, and a sealing assembly. The support assembly is installed at the bottom of the shell and is used to support the shell. The conveying assembly is installed inside the shell and is used to convey materials while simultaneously drawing out carrier gas generated in kilns and rotary dryers. The inlet / outlet assembly is located on the shell and is used to allow materials to enter or exit the screw conveyor. The sealing assembly is installed inside the shell and is used to seal and prevent the material from mixing with the carrier gas.

[0007] Preferably, the transmission assembly includes a motor, a reducer, a transmission end shaft, a first connecting plate, a shaft tube, an outer threaded ribbon, a non-transmission end shaft, a second connecting plate, and an inner threaded ribbon. The reducer is mounted on the output shaft of the motor, and the transmission end shaft is mounted on the other end of the reducer via a coupling. A first connecting plate is mounted on the end of the transmission end shaft, and a shaft tube is mounted on the first connecting plate. An outer threaded ribbon is mounted on the outer edge of the shaft tube, and a non-transmission end shaft is mounted on the other end of the shaft tube. A second connecting plate is mounted between the non-transmission end shaft and the shaft tube, and an inner threaded ribbon is mounted inside the shaft tube.

[0008] Preferably, the support assembly includes a transmission bracket, a first bolt bracket, and a second bolt bracket. The transmission bracket is installed below the reducer, and the first bolt bracket and the second bolt bracket are installed at the bottom of the housing.

[0009] Preferably, the feeding and discharging assembly includes a material inlet, a material outlet, a carrier gas inlet, a carrier gas outlet, and a slag discharge port. The material inlet is located at the upper end of the outer shell, the material outlet is located at the lower end of the outer shell, the carrier gas inlet is located in the gap between the non-transmission end shaft head and the shaft tube installation position, the carrier gas outlet is located above the outer shell and to the right of the material inlet, and the slag discharge port is installed below the outer shell and directly below the carrier gas outlet.

[0010] Preferably, the sealing assembly is located between the material outlet and the carrier gas outlet. The sealing assembly includes a connecting flange, connecting fasteners, and a sealing partition. The sealing partition is installed inside the housing. There are two sealing partitions, and a connecting flange is installed between the two sealing partitions. The sealing partition and the connecting flange are fixed by connecting fasteners. A shaft tube is installed in the middle of the connecting flange.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a conveying component and a feeding / discharging component, allows for the simultaneous conveying of materials and the transport of carrier gas via the inner screw belt inside the shaft tube. During the rotation of the screw conveyor shaft tube, the outer screw belt can transport materials, while the carrier gas can circulate inside the shaft tube. The inner screw belt can return the dust entrained in the carrier gas to the inside of the cylinder. This achieves the effect of conveying materials into the kiln and rotary dryer cylinder, while simultaneously drawing out the carrier gas generated in the kiln and rotary dryer and separating the powder in the carrier gas. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is an overall sectional view of the present invention;

[0015] Figure 2 This is an enlarged schematic diagram of point A of this utility model;

[0016] Figure 3 This is an enlarged schematic diagram of point B of this utility model.

[0017] In the diagram: 1. Cylinder; 2. Hanging support; 3. End plate; 4. Outer shell; 51. Transmission bracket; 52. Bolt No. 1 bracket; 53. Bolt No. 2 bracket; 61. Motor; 62. Reducer; 63. Transmission end shaft head; 64. Connecting plate No. 1; 65. Shaft tube; 66. External threaded ribbon; 67. Non-transmission end shaft head; 68. Connecting plate No. 2; 69. Internal threaded ribbon; 71. Material inlet; 72. Material outlet; 73. Carrier gas inlet; 74. Carrier gas outlet; 75. Slag discharge port; 81. Connecting flange; 82. Connecting fasteners; 83. Sealing partition. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely represents some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is conventionally placed during use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0021] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] This disclosure aims to address the problem that current kiln and rotary dryer systems require material to be conveyed into the kiln or rotary dryer cylinder, while simultaneously requiring the extraction of carrier gas generated within the kiln or rotary dryer, which may contain entrained powder. Existing equipment cannot simultaneously meet these process requirements. Therefore, this disclosure proposes a screw conveyor capable of material conveying, carrier gas circulation, and material return. By incorporating conveying and infeed / outfeed components, the conveyor can simultaneously transport material and, through an internal screw conveyor within the shaft tube, carry carrier gas out. During the rotation of the screw conveyor shaft tube, the external screw conveyor transports material, while carrier gas circulates within the shaft tube. The internal screw conveyor returns any dust entrained in the carrier gas to the inside of the cylinder. This achieves the simultaneous conveying of material into the kiln or rotary dryer cylinder, extraction of carrier gas generated within the kiln or rotary dryer, and separation of powder from the carrier gas.

[0023] like Figures 1 to 3As shown, a screw conveyor capable of material conveying, carrier gas circulation, and material return includes a cylinder 1, a hanging support 2, end plates 3, and a shell 4. The hanging support 2 is installed inside the cylinder 1, and the end plates 3 are installed on the side of the cylinder 1. The shell 4 is installed between the end plates 3. It also includes a support assembly, a conveying assembly, an infeed / discharge assembly, and a sealing assembly. The support assembly is installed at the bottom of the shell 4 and supports the shell 4. The conveying assembly is installed inside the shell 4 and conveys the material while simultaneously drawing out the carrier gas generated in the kiln or rotary dryer. The infeed / discharge assembly is located on the shell 4 and allows material to enter or exit the screw conveyor. The sealing assembly is installed inside the shell 4 and seals the material to prevent mixing with the carrier gas.

[0024] By setting up conveying components and feeding / discharging components, the material is conveyed while the inner screw belt 69 inside the shaft tube 65 drives the carrier gas out. During the rotation of the screw conveyor shaft tube 65, the outer screw belt 66 can convey the material, the carrier gas can circulate inside the shaft tube 65, and the inner screw belt 69 can return the dust entrained in the carrier gas to the inside of the cylinder 1. Thus, the material is conveyed to the kiln and rotary dryer cylinder 1, while the carrier gas generated in the kiln and rotary dryer is drawn out and the powder in the carrier gas is separated.

[0025] like Figures 1 to 3 As shown, the transmission assembly includes a motor 61, a reducer 62, a transmission end shaft head 63, a first connecting plate 64, a shaft tube 65, an outer threaded ribbon 66, a non-transmission end shaft head 67, a second connecting plate 68, and an inner threaded ribbon 69. The reducer 62 is mounted on the output shaft of the motor 61. The transmission end shaft head 63 is mounted on the other end of the reducer 62 via a coupling. The first connecting plate 64 is mounted on the end of the transmission end shaft head 63. The shaft tube 65 is mounted on the first connecting plate 64. The outer threaded ribbon 66 is mounted in an array around the shaft tube 65. The non-transmission end shaft head 67 is mounted on the other end of the shaft tube 65. The second connecting plate 68 is installed between the non-transmission end shaft head 67 and the shaft tube 65. The inner threaded ribbon 69 is installed inside the shaft tube 65.

[0026] During operation, the motor 61 rotates, driving the reducer 62 to rotate. The reducer 62 lowers the rotation speed, and drives the transmission end shaft 63 to rotate. Due to the fixation of the first connecting plate 64, the rotation of the transmission end shaft 63 drives the shaft tube 65 to rotate. The rotating shaft tube 65 drives the outer helical belt 66 to rotate. The rotating outer helical belt 66 causes the material entering from the material inlet 71 to fall from the material outlet 72, thus completing the material conveying work. At the same time, due to the rotation of the shaft tube 65, the inner helical belt 69 also begins to rotate. During the flow of the carrier gas, the dust entrained in the carrier gas can be returned to the inside of the cylinder 1.

[0027] like Figures 1 to 3 As shown, the support assembly includes a transmission bracket 51, a first bolt bracket 52, and a second bolt bracket 53. The transmission bracket 51 is installed below the reducer 62 and is used to fix the reducer 62 and the motor 61. The first bolt bracket 52 and the second bolt bracket 53 are installed at the bottom of the outer casing 4 and are used to fix the outer casing 4.

[0028] like Figures 1 to 3 As shown, the feeding and discharging assembly includes a material inlet 71, a material outlet 72, a carrier gas inlet 73, a carrier gas outlet 74, and a slag discharge port 75. The material inlet 71 is located at the upper end of the outer shell 4, and the material outlet 72 is located at the lower end of the outer shell 4. The carrier gas inlet 73 is located in the gap between the non-transmission end shaft head 67 and the shaft tube 65. The carrier gas outlet 74 is located above the outer shell 4 and to the right of the material inlet 71. The slag discharge port 75 is located below the outer shell 4 and directly below the carrier gas outlet 74. The material inlet 71 is used to put in materials, the material outlet 72 is used to discharge materials, the carrier gas inlet 73 is used to supply carrier gas, and the carrier gas outlet 74 is used to discharge carrier gas. Since the slag discharge port 75 is directly below the carrier gas outlet 74, the residual slag in the carrier gas can be discharged from the slag discharge port 75 under the action of gravity during the discharge of carrier gas.

[0029] like Figures 1 to 3 As shown, the sealing assembly is located between the material outlet 72 and the carrier gas outlet 74. The sealing assembly includes a connecting flange 81, a connecting fastener 82, and a sealing partition 83. The sealing partition 83 is installed inside the outer casing 4. There are two sealing partitions 83, and the connecting flange 81 is installed between the two sealing partitions 83. The sealing partition 83 and the connecting flange 81 are fixed by the connecting fastener 82. A shaft tube 65 is installed in the middle of the connecting flange 81. The sealing partition 83 and the connecting flange 81 achieve the sealing of the material and the carrier gas, avoiding the mixing of the material and the carrier gas during the material transportation process.

[0030] The overall working process is as follows: the motor 61 rotates, driving the reducer 62 to rotate. The reducer 62 reduces the rotation speed, and the reducer 62 drives the transmission end shaft 63 to rotate. Due to the fixation of the first connecting plate 64, the rotation of the transmission end shaft 63 drives the shaft tube 65 to rotate. The rotating shaft tube 65 drives the outer screw belt 66 to rotate. The rotating outer screw belt 66 drives the material entering from the material inlet 71 to fall from the material outlet 72, thus completing the material conveying work. At the same time, due to the rotation of the shaft tube 65, the inner screw belt 69 also begins to rotate. During the flow of the carrier gas, the dust entrained in the carrier gas can be returned to the inside of the cylinder 1.

[0031] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screw conveyor for material conveying, air circulation, and return, comprising a cylinder (1), a hanging support (2), end plates (3), and a shell (4), wherein the hanging support (2) is installed inside the cylinder (1), and the end plates (3) are installed on the side of the cylinder (1); the shell (4) is installed between the end plates (3); characterized in that, It also includes a support assembly, a conveying assembly, an infeed / outfeed assembly, and a sealing assembly. The support assembly is installed at the bottom of the outer shell (4) and is used to support the outer shell (4). The conveying assembly is installed inside the outer shell (4) and is used to convey materials while drawing out the carrier gas generated in the kiln and rotary dryer. The infeed / outfeed assembly is opened on the outer shell (4) and is used to allow materials to enter or flow out of the screw conveyor. The sealing assembly is installed inside the outer shell (4) and is used to seal and prevent the materials from mixing with the carrier gas.

2. The screw conveyor according to claim 1, capable of material conveying, air circulation, and material return, characterized in that: The transmission assembly includes a motor (61), a reducer (62), a transmission end shaft head (63), a first connecting plate (64), a shaft tube (65), an outer threaded ribbon (66), a non-transmission end shaft head (67), a second connecting plate (68), and an inner threaded ribbon (69). The reducer (62) is mounted on the output shaft of the motor (61). The transmission end shaft head (63) is mounted on the other end of the reducer (62) via a coupling. The first connecting plate (64) is mounted on the end of the transmission end shaft head (63). The shaft tube (65) is mounted on the first connecting plate (64). The outer threaded ribbon (66) is mounted on the outer array of the shaft tube (65). The non-transmission end shaft head (67) is mounted on the other end of the shaft tube (65). The second connecting plate (68) is installed between the non-transmission end shaft head (67) and the shaft tube (65). The inner threaded ribbon (69) is installed inside the shaft tube (65).

3. A screw conveyor for material conveying, air circulation, and material return according to claim 2, characterized in that: The support assembly includes a transmission bracket (51), a first bolt bracket (52), and a second bolt bracket (53). The transmission bracket (51) is installed below the reducer, and the first bolt bracket (52) and the second bolt bracket (53) are installed at the bottom of the housing (4).

4. A screw conveyor for material conveying, air circulation, and material return according to claim 3, characterized in that: The feeding and discharging assembly includes a material inlet (71), a material outlet (72), a carrier gas inlet (73), a carrier gas outlet (74), and a slag discharge port (75). The material inlet (71) is located at the upper end of the outer shell (4), the material outlet (72) is located at the lower end of the outer shell (4), the carrier gas inlet (73) is located in the gap between the non-transmission end shaft head (67) and the shaft tube (65), the carrier gas outlet (74) is located on the outer shell (4) and to the right of the material inlet (71), and the slag discharge port (75) is located below the outer shell (4) and directly below the carrier gas outlet (74).

5. A screw conveyor for material conveying, air circulation, and material return according to claim 4, characterized in that: The sealing assembly is located between the material outlet (72) and the carrier gas outlet (74). The sealing assembly includes a connecting flange (81), a connecting fastener (82), and a sealing partition (83). The sealing partition (83) is installed inside the outer shell (4). There are two sealing partitions (83), and a connecting flange (81) is installed between the two sealing partitions (83). The sealing partition (83) and the connecting flange (81) are fixed by the connecting fastener (82). A shaft tube (65) is installed in the middle of the connecting flange (81).

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