Vacuum helical ribbon dryer with double layers of helical ribbons

Abstract

The vacuum helical ribbon drying machine comprises a support, a conical tank is fixedly installed on the support, a driving motor is fixedly installed on the support, the output end of the driving motor is fixedly connected with an inner stirring mechanism through a coupler, the bottom end of the inner stirring mechanism penetrates into the conical tank, and the bottom end of the inner stirring mechanism is fixedly connected with the conical tank. And the interior of the conical tank is rotationally connected with a rotating ring. The inner stirring mechanism is driven by the driving motor to scatter centered materials towards the periphery, and meanwhile, the rotating ring is synchronously driven by the transmission part to rotate at a low speed and drives the outer spiral belt to make contact with the inner wall of the conical tank, so that the materials are pushed upwards along the conical tank and make efficient contact with the inner wall of the conical tank, and the drying efficiency is improved. Therefore, the device has the advantages that the device is provided with two helical ribbons with different rotating speeds, synchronous operation of scattering and driving materials is achieved, the driving efficiency of the materials is effectively improved, and the drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum screw belt dryer technical field more specifically, relate to the vacuum screw belt dryer with double -deck screw belt. BACKGROUND

[0002] The working principle of single cone screw belt vacuum dryer is based on the combination of vacuum drying and stirring drying. Its core components include a single conical cylinder, a screw belt stirrer, a vacuum system, a heating system, and a cooling system, etc. During operation, first, wet materials are added to the conical container through the feed inlet. Then, the screw belt stirrer starts to rotate, uniformly stirring and mixing the materials. The heating cone is provided with a heating jacket, and the heat source can be hot water, heat conducting oil or low pressure steam, so that the inner wall of the cone maintains a certain temperature. Under the action of stirring and heating, the moisture or solvent gradually evaporates and is extracted through the vacuum system, achieving the purpose of drying.

[0003] However, the single cone screw belt vacuum dryer in the prior art generally has a single layer of screw belt attached to the inner wall of the cylinder to turn the materials upward, so that the materials are in continuous contact with the cylinder for drying. However, during this process, a large amount of materials still concentrate in the center of the cylinder, which is too concentrated, the stirring effect of the materials is poor, and the drying efficiency is low. SUMMARY

[0004] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a vacuum screw belt dryer with double-layer screw belt to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The vacuum screw belt dryer with double-layer screw belt comprises a support, a conical tank fixedly installed on the support, a driving motor fixedly installed on the support, an inner stirring mechanism fixedly connected to the output end of the driving motor through a shaft coupling, the bottom end of the inner stirring mechanism penetrating into the inside of the conical tank, a rotating ring rotatably connected to the inside of the conical tank, a transmission member installed between the inside of the rotating ring and the inner stirring mechanism, an outer screw belt fixedly installed at the bottom of the rotating ring, and the outer side of the outer screw belt in sliding contact with the inside of the conical tank.

[0007] As a further description of the above technical scheme, the inner stirring mechanism comprises a transmission rod and an inner screw belt, the output end of the driving motor is fixedly connected to the transmission rod through a shaft coupling, the inner screw belt is fixedly sleeved to the outside of the transmission rod, and the outside of the transmission rod is rotatably connected to the conical tank through a sealing bearing.

[0008] As a further description of the above technical scheme: the transmission member comprises a gear, a transmission gear disc and a tooth ring, the inside of the gear is fixedly connected to the outside of the transmission rod, the outside of the tooth ring is fixedly connected to the inside of the rotating ring, the top of the transmission gear disc is rotatably connected to the inside of the conical tank, and the outside of the transmission gear disc is engaged with the inside of the gear and the outside of the tooth ring.

[0009] As a further description of the above technical scheme: the top of the rotating ring is provided with a protective ring cover, and the top of the protective ring cover is rotatably connected to the inside of the conical tank.

[0010] As a further description of the above technical scheme: the bottom end of the conical tank is fixedly connected with a discharge valve.

[0011] As a further description of the above technical scheme: the top of the conical tank is provided with a feeding valve and a vacuum valve pipe.

[0012] Compared with the prior art, the device has the advantages that:

[0013] The inner stirring mechanism and the transmission member drive the outer screw belt to run, realize synchronous operation of the inner and outer screw belts, efficiently scatter the material, and improve the efficiency of the outer screw belt in pushing the material, so that the device has the advantages of setting two screw belts with different rotating speeds, realizing scattering and synchronous driving of the material, effectively improving the driving efficiency of the material, and improving the drying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view of the sectional structure of the device.

[0015] Figure 2 It is a front view of the sectional structure of the device. Figure 1 It is an enlarged schematic view of the A part of the device.

[0016] Figure 3 It is a front view of the sectional structure of the device.

[0017] Figure 4 It is a front view of the sectional structure of the device.

[0018] Explanation of reference numerals in the drawing:

[0019] 1, support; 2, conical tank; 21, discharge valve; 3, driving motor; 4, inner stirring mechanism; 41, transmission rod; 42, inner screw belt; 5, rotating ring; 51, protective ring cover; 6, transmission member; 61, gear; 62, transmission gear disc; 63, tooth ring; 7, outer screw belt; 8, feeding valve; 9, vacuum valve pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1 to 4 In the utility model, the vacuum spiral dryer with double-layer spiral belts comprises a support 1, a conical tank 2 is fixedly installed on the support 1, a driving motor 3 is fixedly installed on the support 1, an inner stirring mechanism 4 is fixedly connected to the output end of the driving motor 3 through a shaft coupling, the bottom end of the inner stirring mechanism 4 penetrates into the inside of the conical tank 2, a rotating ring 5 is rotatably connected to the inside of the conical tank 2, a transmission piece 6 is installed between the inside of the rotating ring 5 and the inner stirring mechanism 4, an outer spiral belt 7 is fixedly installed at the bottom of the rotating ring 5, and the outside of the outer spiral belt 7 is in sliding contact with the inside of the conical tank 2.

[0022] In the utility model, the support 1 is used as the device main body, when in use, firstly, wet materials are added to the connecting part of the conical tank 2, then high-temperature steam is injected into the inner cavity of the conical tank 2 for heating, and the inside of the conical tank 2 is simultaneously vacuumized, the driving motor 3 is started to drive the inner stirring mechanism 4 to make the central materials be scattered to the periphery, the transmission piece 6 is simultaneously used to drive the rotating ring 5 to rotate at a low speed, the outer spiral belt 7 is driven to contact the inner wall of the conical tank 2, the materials are pushed upwards along the conical tank 2, the materials are efficiently contacted with the inner wall of the conical tank 2, and the drying efficiency is improved, so that the device is provided with two spiral belts with different rotating speeds, the materials are scattered and simultaneously driven, the driving efficiency of the materials is effectively improved, the drying efficiency is improved, the problem that, in the prior art, the materials are continuously contacted with the cylinder for drying by being scattered upwards along the inner wall of the cylinder provided with a single-layer spiral belt, too many materials are still concentrated at the central position of the cylinder, the materials are too concentrated, the stirring effect of the materials is poor, and the drying efficiency is low is solved.

[0023] Please refer to Figure 2 The inner stirring mechanism 4 comprises a transmission rod 41 and an inner spiral belt 42, the output end of the driving motor 3 is fixedly connected with the transmission rod 41 through a shaft coupling, the inner spiral belt 42 is fixedly sleeved to the outside of the transmission rod 41, and the outside of the transmission rod 41 is rotatably connected with the conical tank 2 through a sealing bearing.

[0024] In the utility model, the transmission rod 41 is driven to rotate by the driving motor 3, so that the inner spiral belt 42 is driven to rotate at a high speed, and the central materials are efficiently scattered.

[0025] Please refer to Figure 2 and Figure 3Wherein: the transmission member 6 includes a gear 61, a transmission gear plate 62 and a gear ring 63, the inside of the gear 61 is fixedly connected to the outside of the transmission rod 41, the outside of the gear ring 63 is fixedly connected to the inside of the rotating ring 5, the top of the transmission gear plate 62 is rotatably connected to the inside of the conical tank 2, and the outside of the transmission gear plate 62 is in mesh with the inside of the gear 61 and the outside of the gear ring 63.

[0026] In the utility model, the gear 61 is driven to rotate by the transmission rod 41, the transmission gear plate 62 is driven to rotate by the gear 61, the gear ring 63 is driven to rotate reversely by the transmission gear plate 62, so as to drive the rotating ring 5 to rotate, so that the outer screw belt 7 is driven to rotate, and since the inner diameter of the gear ring 63 is greater than that of the gear plate 62, the rotating speed of the gear ring 63 is less than the rotating speed of the gear 61, so that the rotating speed of the outer screw belt 7 is lower than that of the inner screw belt 42.

[0027] Please refer to Figure 1 and Figure 4 Wherein: the top of the rotating ring 5 is provided with a protective ring cover 51, and the top of the protective ring cover 51 is rotatably connected to the inside of the conical tank 2.

[0028] In the utility model, the area at the top of the rotating ring 5 is isolated by the protective ring cover 51, so that the material does not fall between the gear 61 and the transmission gear plate 62 during feeding, and the internal structure is protected.

[0029] Please refer to Figure 1 Wherein: the bottom end of the conical tank 2 is fixedly connected with a discharge valve 21.

[0030] In the utility model, the conical tank 2 is discharged conveniently through the discharge valve 21.

[0031] Please refer to Figure 1 Wherein: the top of the conical tank 2 is provided with a feeding valve 8 and a vacuum valve pipe 9.

[0032] In the utility model, the feeding valve 8 is used for feeding, the vacuum valve pipe 9 is used for conveniently connecting an external vacuum device, and gas extraction and water vapor discharge are carried out.

[0033] The above merely describes a preferred specific embodiment of the utility model; however, the protection scope of the utility model is not limited to this. Any person skilled in the art, according to the technical scheme and the improved conception of the utility model, makes equivalent replacement or change within the technical range disclosed by the utility model, and all of them should be covered in the protection scope of the utility model.

Claims

1. A vacuum ribbon dryer with double-layer ribbons, comprising a support frame (1), characterized in that: A conical tank (2) is fixedly installed on the bracket (1). A drive motor (3) is fixedly installed on the bracket (1). An internal stirring mechanism (4) is fixedly connected to the output end of the drive motor (3) through a coupling. The bottom end of the internal stirring mechanism (4) extends into the interior of the conical tank (2). A rotating ring (5) is rotatably connected inside the conical tank (2). A transmission component (6) is installed between the inner side of the rotating ring (5) and the internal stirring mechanism (4). An outer spiral ribbon (7) is fixedly installed at the bottom of the rotating ring (5). The outer side of the outer spiral ribbon (7) slides in contact with the inner side of the conical tank (2).

2. The vacuum ribbon dryer with double-layer ribbons according to claim 1, characterized in that: The internal stirring mechanism (4) includes a transmission rod (41) and an inner spiral ribbon (42). The output end of the drive motor (3) is fixedly connected to the transmission rod (41) through a coupling. The inner spiral ribbon (42) is sleeved and fixed to the outside of the transmission rod (41). The outside of the transmission rod (41) is rotatably connected to the conical tank (2) through a sealed bearing.

3. The vacuum ribbon dryer with double-layer ribbons according to claim 2, characterized in that: The transmission component (6) includes a gear (61), a transmission gear disc (62), and a gear ring (63). The inside of the gear (61) is fixedly connected to the outside of the transmission rod (41), and the outside of the gear ring (63) is fixedly connected to the inside of the rotating ring (5). The top of the transmission gear disc (62) is rotatably connected to the inside of the conical tank (2). The outside of the transmission gear disc (62) meshes with the inside of the gear (61) and the outside of the gear ring (63).

4. The vacuum ribbon dryer with double-layer ribbons according to claim 1, characterized in that: The top of the rotating ring (5) is provided with a protective ring cover (51), and the top of the protective ring cover (51) is rotatably connected to the inside of the conical tank (2).

5. The vacuum ribbon dryer with double-layer ribbons according to claim 1, characterized in that: The bottom end of the conical tank (2) is fixedly connected to a discharge valve (21).

6. The vacuum ribbon dryer with double-layer ribbons according to claim 1, characterized in that: The top of the conical tank (2) is equipped with a feed valve (8) and a vacuum valve pipe (9).

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