Drying device for anhydrous sodium sulfate crystallization

Abstract

The utility model provides a drying device for anhydrous sodium sulfate crystallization, which comprises a conveying mechanism and a drying mechanism, the drying mechanism is arranged in the middle of the conveying mechanism and is rotatably connected with the conveying mechanism, driving mechanisms are arranged on the outer sides of the two ends of the drying mechanism, and an auxiliary drying mechanism for auxiliary drying is arranged on the outer side of the middle of the drying mechanism. Supporting frames used for supporting and fixing are arranged on the outer sides of the driving mechanism, the conveying mechanism and the auxiliary drying mechanism. By means of the spiral conveying blades arranged in the conveying barrel, anhydrous sodium sulfate needing to be dried can be attached to the drying mechanism to move continuously and can move continuously on the outer side of the drying mechanism, and the drying efficiency is greatly improved in the mode that the conveying barrel moves to convey the anhydrous sodium sulfate for drying. Anhydrous sodium sulfate needing to be dried can be continuously added to one end of the conveying cylinder, the dried anhydrous sodium sulfate can be continuously discharged from the other end of the conveying cylinder, and then continuous drying treatment of the drying device on the anhydrous sodium sulfate can be conveniently achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium sulfate processing equipment, in particular to a drying device for anhydrous sodium sulfate crystallization. Background Art

[0002] Anhydrous sodium sulfate is a white crystalline solid. It is stable at room temperature, but it is highly hygroscopic and easily absorbs moisture in the air to become a hydrated substance. This substance is usually used as a desiccant, raw material, etc., and has a wide range of uses in chemical industry and laboratories.

[0003] The crystallization process of anhydrous sodium sulfate usually includes the steps of raw material preparation, dissolution, filtration, crystallization, separation, washing, and drying. Among them, the crystallization of anhydrous sodium sulfate is an extremely important step, which is related to the quality of anhydrous sodium sulfate.

[0004] The prior art with patent number CN 216977390 U discloses: comprising a base and a fixing assembly. The base comprises a support platform and a discharge platform, the top of the discharge platform is provided with a guide groove, and one side of the guide groove is provided with a storage box, the fixing assembly comprises a positioning plate, a fixing frame and a tank body, the positioning plates are provided on both sides of the top of the support platform, the tank body is installed inside the fixing frame, the fixing frame is rotatably installed between adjacent positioning plates, a driving motor is provided on one side of the positioning plate, the driving motor is in transmission connection with the fixing frame, when it is necessary to remove the crystal, the driving motor is started, which can drive the fixing frame and the tank body to deflect, thereby facilitating the operator to effectively remove the crystal;

[0005] The above patent document discloses a drying tank for anhydrous sodium sulfate crystallization to solve the problem of inconvenient removal of anhydrous sodium sulfate. Although the drying tank of the above patent can facilitate the removal of dried anhydrous sodium sulfate to a certain extent, it is found in the actual process of anhydrous sodium sulfate crystallization that the drying of anhydrous sodium sulfate is not uniformly heated, and the degree of drying of anhydrous sodium sulfate is easily uneven. At the same time, the drying tank has poor continuity in the drying process of anhydrous sodium sulfate, and anhydrous sodium sulfate needs to be dried intermittently in batches.

[0006] In summary, there is a need for a drying device for anhydrous sodium sulfate that is easy to dry evenly and continuously. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a drying device for anhydrous sodium sulfate crystallization, which solves the problems mentioned in the background technology.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A drying device for anhydrous sodium sulfate crystallization, comprising a conveying mechanism and a drying mechanism, wherein the drying mechanism is arranged in the middle of the conveying mechanism and is rotatably connected to the conveying mechanism, a driving mechanism is provided on the outer sides of both ends of the drying mechanism, an auxiliary drying mechanism for assisting drying is provided on the outer side of the middle of the drying mechanism, and a support frame for supporting and fixing is provided on the outer sides of the driving mechanism, the conveying mechanism, and the auxiliary drying mechanism;

[0010] The conveying mechanism includes a conveying cylinder, conveying blades and air guide holes. The conveying cylinder is arranged outside the drying mechanism. The conveying blades are spiral-shaped and slide in contact with the outside of the drying mechanism. The air guide holes are opened on the outside of the conveying cylinder, and the air guide holes are distributed in multiple groups in a ring.

[0011] A feed baffle and a discharge baffle are fixedly provided on the outer sides of both ends of the drying mechanism. A feed pipe is provided on the top of the feed baffle, and a discharge port is formed between the bottom of the discharge baffle and the conveying cylinder.

[0012] Furthermore, the driving mechanism includes a driving ring, a motor and a driving wheel. The motor is provided on the side of the driving ring, and the output end of the motor is provided with a driving wheel. The outer side of the driving wheel is engaged with the outer side of the conveying cylinder, and the driving ring is rotatably connected to the conveying cylinder.

[0013] Furthermore, the drying mechanism includes a drying cylinder, an air dryer, an air supply pipe, an air distribution pipe, an air guide cylinder and a drying hole. Air dryers are provided inside both ends of the drying cylinder, an air supply pipe is provided at the air outlet end of the air dryer, an air distribution pipe is provided on the outside of the air supply pipe, an air guide cylinder is provided on the inside of the drying cylinder, sealing convex edges are provided at both ends of the air guide cylinder, the sealing convex edges are fitted and fixed to the inside of the drying cylinder, an air guide cavity is formed between the air guide cylinder and the drying cylinder, a drying hole is provided on the outside of the drying cylinder, the drying hole is connected to the air guide cavity, and there are multiple groups of drying holes distributed in a ring.

[0014] Furthermore, the air distribution pipes are distributed in a circular arrangement outside the air supply pipe, and multiple groups of air distribution pipes are provided at equal intervals outside the air supply pipe.

[0015] Furthermore, a heating rod 1 is provided between the gas distribution pipes, and a plurality of heating rods 1 are provided inside the drying cylinder.

[0016] Furthermore, the auxiliary drying mechanism includes an auxiliary drying ring, an auxiliary drying box and two heating rods. The auxiliary drying ring is fixedly arranged at the top of the support frame, the auxiliary drying box is provided on the inner side of the auxiliary drying ring, the side of the auxiliary drying box in contact with the conveying tube is provided with a drying port, and the auxiliary drying box is provided with two heating rods inside.

[0017] Furthermore, the auxiliary trunk boxes are distributed in a ring arrangement inside the auxiliary trunk ring, and the second heating rod is arranged corresponding to the auxiliary trunk box.

[0018] The utility model provides a drying device for anhydrous sodium sulfate crystallization. Compared with the prior art, it has the following features:

[0019] Beneficial effects:

[0020] The spiral conveying blades arranged inside the conveying cylinder can continuously move the anhydrous sodium sulfate to be dried close to the drying mechanism and can continuously move outside the drying mechanism. When the conveying cylinder moves to transport the anhydrous sodium sulfate for drying, one end of the conveying cylinder can continuously add the anhydrous sodium sulfate to be dried, and the other end of the conveying cylinder will continuously discharge the dried anhydrous sodium sulfate, thereby facilitating the continuous drying process of the anhydrous sodium sulfate by the drying device.

[0021] The air guide cavity formed by the air guide cylinder and the drying cylinder in the drying mechanism can gather the dry air and then divert it through the drying hole to be sent into the conveying cylinder to contact with anhydrous sodium sulfate, which is conducive to uniform contact between the dry air and the anhydrous sodium sulfate, thereby enabling the drying device to uniformly dry the anhydrous sodium sulfate and improve the quality of the anhydrous sodium sulfate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of a drying device for anhydrous sodium sulfate crystallization according to the present invention is shown;

[0024] Figure 2 Shows a side view schematic diagram of the entirety of the present invention;

[0025] Figure 3 Shows a schematic structural diagram of the drying mechanism of the present utility model;

[0026] Figure 4 Shows a schematic structural diagram of the conveying mechanism of the present utility model;

[0027] Figure 5 Shows a schematic diagram of the distribution of the drying cylinder and the conveying cylinder of the present utility model;

[0028] As shown in the figure: 1. Support frame; 2. Driving mechanism; 21. Driving ring; 22. Motor; 23. Driving wheel; 3. Conveying mechanism; 31. Conveying cylinder; 32. Conveying blade; 33. Air guide hole; 4. Drying mechanism; 41. Drying cylinder; 42. Air dryer; 43. Air supply pipe; 44. Air distribution pipe; 45. Air guide cylinder; 46. Drying hole; 47. Heating rod 1; 5. Auxiliary drying mechanism; 51. Auxiliary drying ring; 52. Auxiliary drying box; 53. Heating rod 2; 6. Feed baffle; 61. Feed pipe; 7. Discharge baffle; 71. Discharge port. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In order to solve the technical problems in the background technology, a drying device for anhydrous sodium sulfate crystallization is provided as follows: Figures 1-4 As shown, the utility model provides a drying device for anhydrous sodium sulfate crystallization, including a conveying mechanism 3 and a drying mechanism 4, the drying mechanism 4 is arranged in the middle of the conveying mechanism 3, the drying mechanism 4 is rotatably connected to the conveying mechanism 3, the outer sides of the drying mechanism 4 are provided with a driving mechanism 2, the outer side of the middle of the drying mechanism 4 is provided with an auxiliary drying mechanism 5 for auxiliary drying, the outer sides of the driving mechanism 2, the conveying mechanism 3, and the auxiliary drying mechanism 5 are all provided with a support frame 1 for supporting and fixing; the conveying mechanism 3 includes a conveying cylinder 31, a conveying leaf 32 and an air guide hole 33, the conveying cylinder 31 Located outside the drying mechanism 4, a conveying blade 32 is provided inside the conveying cylinder 31. The conveying blade 32 is spiral-shaped and slides in contact with the outside of the drying mechanism 4. Air guide holes 33 are opened on the outside of the conveying cylinder 31, and multiple groups of air guide holes 33 are distributed in a ring. The conveying blade 32 provided inside the conveying cylinder 31 can continuously convey the anhydrous sodium sulfate to be dried when the conveying cylinder 31 rotates. The provision of the air guide holes 33 facilitates the precipitation of moisture from the anhydrous sodium sulfate from the conveying cylinder 31 when the drying mechanism 4 dries the anhydrous sodium sulfate inside the conveying cylinder 31.

[0031] In this embodiment, a feed baffle 6 and a discharge baffle 7 are fixedly provided on the outer sides of both ends of the drying mechanism 4. A feed pipe 61 is provided on the top of the feed baffle 6, and a discharge port 71 is formed between the bottom of the discharge baffle 7 and the conveying cylinder 31. The arrangement of the feed pipe 61 and the discharge port 71 facilitates the discharge of the anhydrous sodium sulfate in the conveying cylinder 31 from the device below the spiral blade after drying.

[0032] As a preferred embodiment, based on the above-mentioned embodiment, the driving mechanism 2 further includes a driving ring 21, a motor 22 and a driving wheel 23. The motor 22 is provided on the side of the driving ring 21, and the output end of the motor 22 is provided with a driving wheel 23. The outer side of the driving wheel 23 is engaged with the outer side of the conveying cylinder 31, and the driving ring 21 is rotatably connected to the conveying cylinder 31; the motor 22 can provide power for the rotation of the conveying cylinder 31 through the driving wheel 23;

[0033] In this embodiment, the spiral conveying blade 32 provided inside the conveying cylinder 31 can continuously move the anhydrous sodium sulfate to be dried in contact with the drying mechanism 4, and can continuously move outside the drying mechanism 4. When the conveying cylinder 31 moves to convey the anhydrous sodium sulfate for drying, one end of the conveying cylinder 31 can continuously add the anhydrous sodium sulfate to be dried, and the other end of the conveying cylinder 31 will continuously discharge the dried anhydrous sodium sulfate, thereby facilitating the continuous drying process of the anhydrous sodium sulfate by the drying device.

[0034] like Figure 1-Figure 5 As shown, based on the above embodiment, in order to make, this embodiment provides the following design:

[0035] As a preferred embodiment, the drying mechanism 4 includes a drying cylinder 41, an air dryer 42, an air supply pipe 43, an air distribution pipe 44, an air guide cylinder 45 and a drying hole 46. The air dryers 42 are provided at both ends of the drying cylinder 41. The air outlet end of the air dryer 42 is provided with an air supply pipe 43. The air distribution pipe 44 is provided on the outside of the air supply pipe 43. The air guide cylinder 45 is provided on the inside of the drying cylinder 41. The air guide cylinder 45 is provided with sealing convex edges at both ends. The sealing convex edges are fixed to the inside of the drying cylinder 41. The air guide cylinder 45 is fixed to the drying cylinder 41. An air guide cavity is formed between the cylinders 41. Drying holes 46 are formed on the outside of the drying cylinder 41. The drying holes 46 are connected to the air guide cavity. There are multiple groups of drying holes 46 arranged in a circle. The air dryer 42 can dry the air and send it into the air supply pipe 43. The air guide cavity formed by the air guide cylinder 45 and the drying cylinder 41 facilitates the collection of dry air, which is then diverted through the drying holes 46 and sent into the interior of the conveying cylinder 31 to contact with the anhydrous sodium sulfate. This is conducive to improving the uniform drying of the anhydrous sodium sulfate by the dry air discharged by the drying mechanism 4.

[0036] As an improvement to the above solution, the air distribution pipes 44 are arranged in a circular arrangement outside the air supply pipe 43. Multiple groups of air distribution pipes 44 are provided at equal intervals outside the air supply pipe 43. The multiple groups of air distribution pipes 44 arranged in a circular arrangement can evenly deliver the dry air into the air guide cylinder 45, which helps the air guide cylinder 45 evenly eject the dry air from the drying holes 46.

[0037] In this embodiment, heating rods 47 are provided between the air distribution pipes 44, and multiple groups of heating rods 47 are provided inside the drying cylinder 41. The provision of the heating rods 47 can heat the dry air, thereby improving the drying effect of the dry air on the anhydrous sodium sulfate. At the same time, the heating rods 47 can increase the temperature of the drying cylinder 41, so that the drying cylinder 41 itself can achieve a certain degree of drying effect on the anhydrous sodium sulfate.

[0038] In order to further improve the uniformity of the drying of anhydrous sodium sulfate inside the conveying cylinder 31, the present embodiment provides the following structure: the auxiliary drying mechanism 5 includes an auxiliary drying ring 51, an auxiliary drying box 52 and a second heating rod 53. The auxiliary drying ring 51 is fixedly arranged at the top of the support frame 1. The auxiliary drying box 52 is provided on the inner side of the auxiliary drying ring 51. The side of the auxiliary drying box 52 in contact with the conveying cylinder 31 is provided with a drying port, and a second heating rod 53 is provided inside the auxiliary drying box 52. The auxiliary drying box 52 provided in the auxiliary drying mechanism 5 can heat the conveying cylinder 31 under the action of the second heating rod 53, so that the conveying cylinder 31 can evaporate the moisture in the anhydrous sodium sulfate, which is conducive to further ensuring that the anhydrous sodium sulfate inside the conveying cylinder 31 is evenly dried.

[0039] As an improvement to the above scheme, the auxiliary drying boxes 52 are distributed in a ring on the inner side of the auxiliary drying ring 51, and the second heating rod 53 is set corresponding to the auxiliary drying boxes 52; the auxiliary drying boxes 52 distributed in a ring can uniformly heat the conveying cylinder 31 through the second heating rod 53, which is convenient for controlling the drying temperature of the conveying cylinder 31 for anhydrous sodium sulfate.

[0040] The working principle and use process of this utility model:

[0041] When using:

[0042] First, the anhydrous sodium sulfate to be dried is fed into the conveying cylinder 31 through the feed pipe 61. Then, the motor 22 in the drive mechanism 2 drives the drive wheel 23 to rotate, driving the conveying cylinder 31 to rotate outside the drying cylinder 41 in the drying mechanism 4. When the conveying cylinder 31 rotates, the spiral conveying blades 32 inside the conveying cylinder 31 continuously convey the anhydrous sodium sulfate.

[0043] Then, when the anhydrous sodium sulfate passes through the outside of the drying cylinder 41, the air dryer 42 dries the air and sends it into the air guide cavity formed by the air guide cylinder 45. At this time, the heating rod 1 47 heats the dry air, so that the heated dry air is evenly sent into the interior of the conveying cylinder 31 through the drying hole 46 to contact with the anhydrous sodium sulfate. At this time, the dry air absorbs the moisture in the anhydrous sodium sulfate. Under the continuous delivery of the dry air, the air with the moisture of the anhydrous sodium sulfate is discharged from the air guide hole 33 opened on the outside of the conveying cylinder 31. At the same time, the heating rod 2 53 in the auxiliary drying mechanism 5 heats the conveying cylinder 31, raising the temperature of the conveying cylinder 31, so that the anhydrous sodium sulfate inside the conveying cylinder 31 is more evenly heated and dried.

[0044] Anhydrous sodium sulfate will continue to dry during the transportation process and eventually be discharged from the device through the discharge port 71. The feed pipe 61 can continuously add anhydrous sodium sulfate that needs to be dried, thereby realizing continuous drying of anhydrous sodium sulfate by the drying device.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A drying device for anhydrous sodium sulfate crystallization, characterized in that: The drying mechanism (4) comprises a conveying mechanism (3) and a drying mechanism (4), wherein the drying mechanism (4) is arranged in the middle of the conveying mechanism (3), the drying mechanism (4) and the conveying mechanism (3) are rotatably connected, a driving mechanism (2) is arranged on the outer sides of both ends of the drying mechanism (4), an auxiliary drying mechanism (5) for assisting drying is arranged on the outer side of the middle of the drying mechanism (4), and a support frame (1) for supporting and fixing is arranged on the outer sides of the driving mechanism (2), the conveying mechanism (3), and the auxiliary drying mechanism (5); The conveying mechanism (3) includes a conveying cylinder (31), a conveying blade (32) and an air guide hole (33). The conveying cylinder (31) is arranged outside the drying mechanism (4). The conveying blade (32) is provided inside the conveying cylinder (31). The conveying blade (32) is spiral-shaped. The conveying blade (32) slides in contact with the outside of the drying mechanism (4). The air guide holes (33) are opened on the outside of the conveying cylinder (31). The air guide holes (33) are distributed in a ring in a plurality of groups. A feed baffle (6) and a discharge baffle (7) are fixedly provided on the outer sides of both ends of the drying mechanism (4); a feed pipe (61) is provided on the top of the feed baffle (6); and a discharge port (71) is formed between the bottom of the discharge baffle (7) and the conveying cylinder (31).

2. A drying device for anhydrous sodium sulfate crystallization according to claim 1, characterized in that: The driving mechanism (2) comprises a driving ring (21), a motor (22) and a driving wheel (23). The motor (22) is provided on the side of the driving ring (21). The output end of the motor (22) is provided with a driving wheel (23). The outer side of the driving wheel (23) is in meshing contact with the outer side of the conveying cylinder (31). The driving ring (21) is rotatably connected to the conveying cylinder (31).

3. A drying device for anhydrous sodium sulfate crystallization according to claim 1, characterized in that: The drying mechanism (4) comprises a drying cylinder (41), an air dryer (42), an air supply pipe (43), an air distribution pipe (44), an air guide cylinder (45) and a drying hole (46). The air dryers (42) are provided inside the drying cylinder (41) at both ends. The air outlet end of the air dryer (42) is provided with an air supply pipe (43). The air distribution pipe (44) is provided outside the air supply pipe (43). The air guide cylinder (45) is provided inside the drying cylinder (41). The air guide cylinder (45) is provided with sealing convex edges at both ends. The sealing convex edges are fixed to the inside of the drying cylinder (41). An air guide cavity is formed between the air guide cylinder (45) and the drying cylinder (41). Drying holes (46) are opened outside the drying cylinder (41). The drying holes (46) are connected to the air guide cavity. The drying holes (46) are distributed in a ring in a plurality of groups.

4. A drying device for anhydrous sodium sulfate crystallization according to claim 3, characterized in that: The air distribution pipes (44) are distributed in a ring array outside the air supply pipe (43), and multiple groups of air distribution pipes (44) are provided at equal intervals outside the air supply pipe (43).

5. A drying device for anhydrous sodium sulfate crystallization according to claim 4, characterized in that: A heating rod (47) is provided between the gas distribution pipes (44), and a plurality of heating rods (47) are provided inside the drying cylinder (41).

6. A drying device for anhydrous sodium sulfate crystallization according to claim 1, characterized in that: The auxiliary drying mechanism (5) comprises an auxiliary drying ring (51), an auxiliary drying box (52) and a second heating rod (53). The auxiliary drying ring (51) is fixedly arranged at the top of the support frame (1). The auxiliary drying box (52) is provided on the inner side of the auxiliary drying ring (51). A drying port is provided on the side of the auxiliary drying box (52) that contacts the conveying cylinder (31). The second heating rod (53) is provided inside the auxiliary drying box (52).

7. A drying device for anhydrous sodium sulfate crystallization according to claim 6, characterized in that: The auxiliary trunk boxes (52) are distributed in a ring array inside the auxiliary trunk ring (51), and the second heating rod (53) is arranged corresponding to the auxiliary trunk box (52).

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