Helical ribbon dryer

Abstract

The utility model discloses a helical ribbon dryer, which relates to the dryer field, and comprises a dryer main body and a stirring mechanism rotatably arranged in the dryer main body, a heating cavity is arranged outside the dryer main body, and an input pipe and an output pipe which are communicated with the heating cavity are respectively fixed on two sides of the outer wall of the dryer main body. A flow guide plate of a spiral structure is fixed to the inner wall of the heating cavity, and the stirring mechanism comprises a rotating shaft and spiral stirring blades symmetrically fixed to the two ends of the rotating shaft. The heating medium is spirally conveyed in the heating cavity, the contact area between the heating medium and the inner wall of the heating cavity is enlarged, the contact time between the heating medium and the inner wall of the heating cavity is prolonged, the heating effect of the drying machine body is improved, the spiral stirring blades adjust the position of a dried object in the drying machine body, the dried object corresponds to the heating cavities at different positions, and the drying effect is improved. And the drying uniformity of the dried object is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of drying machine, concretely to a screw belt type drying machine. BACKGROUND

[0002] Currently, in the treatment of industrial wastewater, if the salt is not removed, the wastewater treatment plant will not accept such wastewater because the wastewater contains a lot of salt. Therefore, the wastewater needs to be evaporated to a supersaturated solution to make the salt crystallize out as solid waste for treatment. The treatment cost of solid waste is calculated according to the weight. If the saturated solution of salt is directly given to the solid waste treatment plant for treatment, a high cost is required. Since most of the saturated solution is water, the drying machine is usually used to evaporate the water in the solid waste first, leaving some solid or liquid impurities that cannot be evaporated to be transported to the treatment plant for treatment, thereby greatly reducing the treatment cost and transportation cost. In addition, the drying machine can also be used to reduce the moisture content of the material or the evaporation concentration of the product.

[0003] Currently, the screw belt type drying machine is provided with a drying cavity at the center position, and a heating cavity for circulating heating medium is provided on the outside of the screw belt type drying machine, and an input pipe and an output pipe connected with the heating cavity are installed on both sides of the screw belt type drying machine. Since the heating medium of the gas moves linearly between the input pipe and the output pipe, the heating medium of the liquid is affected by gravity and accumulates at the bottom of the heating cavity, which causes the heating medium to not completely fill in the heating cavity, resulting in insufficient heating of the screw belt type drying machine. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model aims to provide a screw belt type drying machine to solve the technical problem of insufficient heating of the screw belt type drying machine due to the linear movement of the heating medium of the gas between the input pipe and the output pipe, and the accumulation of the heating medium of the liquid at the bottom of the heating cavity due to the influence of gravity, which causes the heating medium to not completely fill in the heating cavity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a screw belt type drying machine, comprising a drying machine main body and a stirring mechanism rotatingly arranged in the drying machine main body, a heating cavity is arranged on the outside of the drying machine main body, and an input pipe and an output pipe in communication with the heating cavity are fixed on both sides of the outer wall of the drying machine main body, a guide plate in a spiral structure is fixed on the inner wall of the heating cavity, and the stirring mechanism comprises a rotating shaft and helical stirring blades fixed symmetrically on both ends of the rotating shaft.

[0006] The utility model is further provided with a feeding channel installed at the top end of the drying machine main body, and a discharging pipe fixed at the bottom end of the drying machine main body.

[0007] The utility model further sets up, the top end of feeding channel is connected with the sealing cover, installs control valve on the discharge pipe.

[0008] The utility model further sets up, the outer wall fixed mounting of pivot has a plurality of mounting rods, the inner wall of two spiral stirring vane respectively with a plurality of mounting rods are fixed.

[0009] The utility model further sets up, the outer wall fixed mounting of drying machine main part has motor, the axle of motor is fixedly connected with pivot.

[0010] The utility model further sets up, one end of pivot is set out in the lateral wall of drying machine main part, and the lateral wall of pivot is equipped with steam output hole.

[0011] The utility model further sets up, the outer wall of pivot is equipped with a plurality of through -hole, the both ends of a plurality of through -hole are linked together with steam output hole and drying machine main part inside respectively, and filter membrane is fixedly embedded in through -hole.

[0012] Summarized above, the utility model mainly has the following beneficial effects: the utility model discloses a spiral structure's flow guide plate is fixedly embedded in heating cavity, and flow guide plate guides the heating medium flowing in heating cavity, so that the heating medium is conveyed in heating cavity in spiral shape, improves the contact area and contact time of heating medium and the inner wall of heating cavity, and improves the heating effect of drying machine main part;

[0013] By installing pivot in drying machine main part, the positive rotation and reverse rotation of motor drive two groups of spiral stirring vane synchronous rotation, and when spiral stirring vane positive rotation transports the drying material of drying machine main part both sides to the center position, and when spiral stirring vane reverses, the drying material at the center position of drying machine main part is transported to both sides, by adjusting the position of drying material in drying machine main part, makes drying material and different position's heating cavity correspond, improves the uniformity of drying material drying;

[0014] By setting up through -hole and steam output hole on pivot respectively, the water vapor generated when heating is discharged along through -hole and steam output hole, and the filter membrane in through -hole blocks the drying material, which facilitates the discharge of steam generated by drying. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0017] Figure 3 It is the sectional structure schematic diagram of the utility model; Figure 2 The structure enlarged schematic diagram of A place in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the dryer body of this utility model.

[0019] In the diagram: 1. Dryer body; 2. Motor; 3. Input pipe; 4. Sealing cover; 5. Shaft; 6. Output pipe; 7. Control valve; 8. Steam output port; 9. Mounting rod; 10. Spiral stirring blade; 11. Feed channel; 12. Heating chamber; 13. Through hole; 14. Filter membrane; 15. Discharge pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] A type of ribbon dryer, such as Figures 1-4 As shown, the dryer includes a dryer body 1 and a stirring mechanism rotatably disposed in the dryer body 1. A heating chamber 12 is provided on the outside of the dryer body 1, and an input pipe 3 and an output pipe 6 connected to the heating chamber 12 are respectively fixed on both sides of the outer wall of the dryer body 1. A guide plate 16 with a spiral structure is fixed on the inner wall of the heating chamber 12. The stirring mechanism includes a rotating shaft 5 and spiral stirring blades 10 symmetrically fixed at both ends of the rotating shaft 5.

[0022] A feed channel 11 is installed at the top of the dryer body 1, and a discharge pipe 15 is fixed at the bottom of the dryer body 1. A sealing cap 4 is threaded to the top of the feed channel 11. A control valve 7 is installed on the discharge pipe 15. Multiple mounting rods 9 are fixedly installed on the outer wall of the rotating shaft 5. The inner walls of the two spiral stirring blades 10 are respectively fixed to the multiple mounting rods 9. The guide plate 16 with a spiral structure guides the heating medium flowing in the heating chamber 12, so that the heating medium is conveyed in a spiral shape in the heating chamber 12, thereby increasing the contact area and contact time between the heating medium and the inner wall of the heating chamber 12.

[0023] Further, the outer wall of the dryer main body 1 is fixedly provided with a motor 2, the shaft of the motor 2 is fixedly connected with a rotating shaft 5, one end of the rotating shaft 5 is protrudingly arranged on the side wall of the dryer main body 1, the forward rotation and reverse rotation of the motor 2 drives the synchronous rotation of the two groups of spiral stirring blades 10, the spiral stirring blades 10 forward rotation transports the drying materials on both sides of the dryer main body 1 to the center position, the spiral stirring blades 10 reverse rotation transports the drying materials at the center position of the dryer main body 1 to both sides, adjusting the position of the drying materials in the dryer main body 1 makes the drying materials correspond to the heating cavities 12 at different positions, improves the uniformity of the drying materials, and the side wall of the rotating shaft 5 is provided with a steam output hole 8, the outer wall of the rotating shaft 5 is provided with a plurality of through holes 13, the two ends of the plurality of through holes 13 are respectively connected with the steam output hole 8 and the inside of the dryer main body 1, and a filter membrane 14 is embedded and fixed in the through hole 13, the water vapor generated during heating is discharged along the through hole 13 and the steam output hole 8, and the filter membrane 14 in the through hole 13 blocks the drying materials, and the filter membrane 14 includes (polyether sulfone, cellulose acetate membrane, PVDF filter membrane and PCTE polycarbonate membrane).

[0024] The working principle of the utility model is: when using, open the sealing cover 4 and transport the drying materials into the dryer main body 1, the heating medium is transported into the heating cavity 12 from the input pipe 3 and discharged from the output pipe 6, the spiral structure of the flow guide plate 16 guides the flow of the heating medium in the heating cavity 12, so that the heating medium is transported in the heating cavity 12 in a spiral shape, the contact area and contact time of the heating medium and the inner wall of the heating cavity 12 are improved, the heating effect of the dryer main body 1 is improved, the forward rotation and reverse rotation of the motor 2 drives the synchronous rotation of the two groups of spiral stirring blades 10, the spiral stirring blades 10 forward rotation transports the drying materials on both sides of the dryer main body 1 to the center position, the spiral stirring blades 10 reverse rotation transports the drying materials at the center position of the dryer main body 1 to both sides, adjusting the position of the drying materials in the dryer main body 1 makes the drying materials correspond to the heating cavities 12 at different positions, improves the uniformity of the drying materials, the water vapor generated during heating is discharged along the through hole 13 and the steam output hole 8, and the filter membrane 14 in the through hole 13 blocks the drying materials.

[0025] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A screw band dryer comprising a dryer body (1) and a stirring mechanism rotatably provided in the dryer body (1), characterized in that: The outside of the drying machine body (1) is provided with a heating cavity (12), and the outer wall of the drying machine body (1) is fixed with an input pipe (3) and an output pipe (6) respectively which are communicated with the heating cavity (12), the inner wall of the heating cavity (12) is fixed with a spiral flow guide plate (16), and the stirring mechanism comprises a rotating shaft (5) and a spiral stirring blade (10) fixed symmetrically on both ends of the rotating shaft (5).

2. A ribbon dryer according to claim 1, characterised in that: The top end of the drying machine body (1) is provided with a feeding channel (11), and the bottom end of the drying machine body (1) is fixed with a discharging pipe (15).

3. A screw conveyor dryer according to claim 2, characterised in that: The top end of the feeding channel (11) is threadedly connected with a sealing cover (4), and the discharging pipe (15) is provided with a control valve (7).

4. A ribbon dryer according to claim 1, characterised in that: The outer wall of the rotating shaft (5) is fixedly provided with a plurality of mounting rods (9), and the inner walls of the two spiral stirring blades (10) are respectively fixed with the mounting rods (9).

5. A ribbon dryer according to claim 4, characterised in that: The outer wall of the drying machine body (1) is fixedly provided with a motor (2), and the shaft of the motor (2) is fixedly connected with the rotating shaft (5).

6. A ribbon dryer according to claim 1, characterised in that: One end of the rotating shaft (5) protrudes from the side wall of the drying machine body (1), and the side wall of the rotating shaft (5) is provided with a steam output hole (8).

7. A ribbon dryer according to claim 6, characterised in that: The outer wall of the rotating shaft (5) is provided with a plurality of through holes (13), the two ends of the plurality of through holes (13) are respectively communicated with the steam output hole (8) and the inside of the drying machine body (1), and a filter membrane (14) is embedded and fixed in the through hole (13).

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