Drying equipment for extracting salt from desulfurization liquid

Abstract

The utility model provides drying equipment for extracting salt from desulfurization liquid, and relates to the technical field of desulfurization liquid salt extraction processes, the drying equipment comprises: a drying tank, the upper part of which is connected with a feed port and an exhaust port, and the lower part of which is connected with a discharge port; a partition plate is arranged on the inner side of the drying tank and divides the inner space of the drying tank into a drying chamber and an air supply chamber, the drying chamber is located above the air supply chamber, and the air supply chamber is provided with an air inlet. The three-dimensional spiral track is arranged in the drying tank, and ventilation holes are distributed in the three-dimensional spiral track; the two-dimensional spiral distribution pipe is positioned below the three-dimensional spiral track; the two-dimensional spiral distribution pipe is provided with an air outlet; the fan is arranged in the air supply chamber; and the heater is arranged in the air supply chamber. Through the arrangement of the three-dimensional spiral track, the moving path of materials can be prolonged while the materials are conveyed by utilizing the gravity of the materials, and the materials are in a moving state when rolling downwards, so that the contact area between the materials and hot air is larger on the whole, and the drying efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to desulfurization liquid salt extraction process technical field especially is related to a kind of drying equipment for desulfurization liquid salt extraction. BACKGROUND

[0002] Desulfurization liquid salt extraction process is the salt solution containing produced in desulfurization process through pretreatment, evaporation concentration, crystallization separation, drying and packaging etc.

[0003] In desulfurization liquid salt extraction process, hot air drying is the key link, directly related to the quality of salt product and drying efficiency.However, in the process of hot air drying, the contact area of material and hot air is small, which affects the drying efficiency and needs to be improved. UTILITARIAN CONTENT

[0004] In view of the above situation, the utility model provides a kind of drying equipment for desulfurization liquid salt extraction, to solve the technical problem that the contact area of material and hot air is small in the process of hot air drying at present, which affects the drying efficiency.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of drying equipment for desulfurization liquid salt extraction, comprising:

[0007] Drying tank, its upper portion is connected with feed inlet and exhaust port, lower portion is connected with discharge port;The inside of drying tank is provided with partition, and the inside space of drying tank is separated to form drying chamber and gas supply chamber after partition, and drying chamber is located above gas supply chamber, and gas supply chamber has air inlet;

[0008] Three-dimensional spiral track is arranged in drying tank, one end is communicated with feed inlet, the other end extends downward and is connected with discharge port;Three-dimensional spiral track is distributed with air-permeable hole;

[0009] Two-dimensional spiral distribution pipe is arranged in drying tank and is located below three-dimensional spiral track;One end of two-dimensional spiral distribution pipe penetrates partition downward and is communicated with gas supply chamber, the other end extends along horizontal direction spirally;The upper side of two-dimensional spiral distribution pipe is uniformly distributed with a plurality of air outlets;

[0010] Fan is arranged in gas supply chamber;

[0011] Heater is arranged in gas supply chamber, and the airflow formed by fan is heated after heater to form hot air, and hot air enters drying chamber from bottom to top through two-dimensional spiral distribution pipe.

[0012] In some embodiments of the utility model, dust screen is installed at air inlet.

[0013] In some embodiments of the utility model, air outlet is connected with airflow diffuser.

[0014] In some embodiments of the utility model, airflow diffuser includes:

[0015] Cylinder, its lower part is detachable with air outlet, the upper part of cylinder is expanded to form hollow expansion part, the inside of expansion part is communicated with air outlet, the bottom of expansion part is distributed with multiple exhaust holes whose air outlet direction is obliquely downward, the top of expansion part is closed.

[0016] Baffle, which is connected to the outside of the middle part of cylinder and located below exhaust hole, forms the flow channel which is obliquely upward between the upper side of baffle and the bottom of cylinder.

[0017] In some embodiments of the utility model, the top of expansion part is sharp.

[0018] In some embodiments of the utility model, the downward projection of baffle is located in the downward projection of expansion part.

[0019] In some embodiments of the utility model, the upper side of baffle is arc-shaped.

[0020] In some embodiments of the utility model, multiple baffles are arranged along the circumference of cylinder.

[0021] In some embodiments of the utility model, it further includes microwave drying box, the inlet of microwave drying box is connected with the discharge port.

[0022] The utility model discloses at least has following advantages or beneficial effects:

[0023] 1, the material (salt material) obtained after desulfurization liquid is extracted is entered into drying tank from feed inlet and is rolled down to discharge port in spiral shape along three -dimensional spiral track, and hot air is generated under the action of fan and heater and flows upward and contacts material to take away the water on the surface of material, realizes drying.

[0024] 2, through the setting of three -dimensional spiral track, can realize material conveying while using material gravity, prolongs the moving path of material, because material is in the motion state when rolling down, so the contact area of material and hot air is larger and more uniform from the whole, can improve drying efficiency and reduce equipment energy consumption.

[0025] 3, through the setting of two -dimensional spiral distribution pipe, realizes the uniform distribution effect to hot air.

[0026] Other features and advantages of the utility model will be set forth in the subsequent specification, and, partially become obvious from the specification, or be understood by implementing the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 Structure diagram of the drying equipment for desulfurization liquid salt extraction;

[0029] Figure 2 Structure diagram of the two-dimensional spiral distribution pipe extending along the horizontal direction in a spiral manner;

[0030] Figure 3 For Figure 1 Local enlarged view of position A.

[0031] Icon:

[0032] 1-drying tank, 11-inlet, 12-exhaust port, 13-outlet, 14-baffle, 15-drying chamber, 16-gas supply chamber, 161-inlet, 162-dust screen,

[0033] 2-three-dimensional spiral track,

[0034] 3-two-dimensional spiral distribution pipe, 31-outlet,

[0035] 4-fan,

[0036] 5-heater,

[0037] 6-microwave drying box,

[0038] 7-air flow diffuser, 71-cylinder, 72-baffle, 73-enlarged portion, 74-exhaust hole, 75-flow guide channel. DETAILED DESCRIPTION

[0039] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application.

[0040] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0041] Furthermore, the term "multiple" means two or more, unless otherwise explicitly specified.

[0042] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0043] The embodiments of this utility model will be described in detail below.

[0044] Example 1

[0045] See Figures 1-3 This embodiment provides a drying device for desulfurization liquid salt extraction, including a drying tank 1, a three-dimensional spiral track 2, a two-dimensional spiral distribution pipe 3, a fan 4, and a heater 5.

[0046] The upper part of the drying tank 1 is connected to an inlet 11 and an outlet 12, and the lower part is connected to an outlet 13. A partition 14 is provided on the lower inner side of the drying tank 1, dividing the internal space of the drying tank 1 into a drying chamber 15 and an air supply chamber 16. The drying chamber 15 is located above the air supply chamber 16. The air supply chamber 16 has an air inlet 161, and a dustproof screen 162 is installed at the air inlet 161.

[0047] A three-dimensional spiral track 2 is installed inside the drying tank 1. One end of the three-dimensional spiral track 2 is connected to the feed inlet 11, and the other end extends downward spirally and connects to the discharge outlet 13. Ventilation holes (not shown in the figure) are evenly distributed on the three-dimensional spiral track 2.

[0048] A two-dimensional spiral distribution pipe 3 is installed inside the drying tank 1 and located below the three-dimensional spiral track 2. One end of the two-dimensional spiral distribution pipe 3 penetrates downward through the partition 14 and connects to the air supply chamber 16, while the other end extends spirally in the horizontal direction. Multiple air outlets 31 are evenly distributed on the upper side of the two-dimensional spiral distribution pipe 3.

[0049] The fan 4 is installed in the air supply chamber 16 and is located near the air inlet 161.

[0050] The heater 5 is installed in the air supply chamber 16. The airflow generated by the fan 4 is heated by the heater 5 to form hot air. The hot air enters the drying chamber 15 from bottom to top through the two-dimensional spiral distribution pipe 3.

[0051] The material (salt substance) obtained after the desulfurization liquid is salted is fed into the drying tank 1 through the feeding port 11, spirally rolls downward along the three-dimensional spiral track 2 to the discharging port 13, and hot air is generated under the action of the fan 4 and the heater 5 and flows upward to contact the material and take away the water on the surface of the material, so as to realize drying.

[0052] The two-dimensional spiral distribution pipe 3 is arranged to achieve uniform distribution of the hot air. The three-dimensional spiral track 2 is arranged to extend the movement path of the material while utilizing the gravity of the material to realize the conveying of the material. Since the material is in a moving state when rolling downward, the contact area between the material and the hot air is larger and more uniform as a whole, which can improve the drying efficiency and reduce the energy consumption of the equipment.

[0053] Embodiment 2

[0054] Referring to Figures 1-3 Different from embodiment 1, in this embodiment, the desulfurization liquid salted by the drying equipment further comprises a microwave drying box 6, and the inlet of the microwave drying box 6 is connected with the discharging port 13 of the drying tank 1.

[0055] The material is in irregular granular shape and has a phenomenon of adhesion. After adhesion, a larger material is formed, and there are a large number of gaps in the material, in which water is hidden. It is difficult to effectively dry this part of water by hot air alone. In this embodiment, the microwave drying box 6 is additionally arranged to utilize the microwave drying technology to deeply treat the material, so as to ensure drying of the material inside and outside, and to ensure the product quality.

[0056] Embodiment 3

[0057] This embodiment is a further improvement based on embodiment 1 or 2.

[0058] Referring to Figures 1-3 In order to expand the coverage range of each air outlet 31, the air outlet 31 is connected with an airflow diffuser 7, which disperses the hot air originally discharged upward from the top end of the air outlet 31, so as to expand the coverage range, which is helpful to reduce the number of air outlets 31 used.

[0059] The airflow diffuser 7 comprises a column body 71 and a baffle 72.

[0060] The lower part of the column body 71 is detachably connected with the air outlet 31 in a threaded connection manner or the like. The upper part of the column body 71 is expanded to form a hollow expanded part 73, the inside of the expanded part 73 is connected with the air outlet 31, the bottom of the expanded part 73 is circumferentially distributed with a plurality of air outlet holes 74 with air outlet directions inclined downward, and the top of the expanded part 73 is closed and in a sharp shape.

[0061] The baffle plate 72 is connected to the outer side of the middle part of the column 71 and is located below the exhaust hole 74. The upper side of the baffle plate 72 is arc-shaped. The upper side of the baffle plate 72 and the bottom of the column 71 form a flow guide channel 75 that is directed obliquely upward. The flow guide channel 75 is arc-shaped. The downward projection of the baffle plate 72 is located within the downward projection of the bulge 73. A plurality of baffle plates 72 are arranged at intervals in the circumferential direction of the column 71. The number of baffle plates 72 matches the number of exhaust holes 74, and they are one-to-one corresponding.

[0062] After the hot air enters the airflow diffuser 7, it enters the flow guide channel 75 from the exhaust hole 74 and is sprayed obliquely upward under the guidance of the flow guide channel 75, thereby achieving the diffusion of the hot air.

[0063] In addition, water in the material inevitably passes through the air-permeable hole and drips downward. Since the top of the bulge 73 is sharp, the downward dripping water is blocked by the bulge 73 and flows along the top of the bulge 73, avoiding the water from entering the air outlet 31 and the air supply chamber 16.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A drying device for salt extraction from desulfurization solution, characterized in that, include: A drying tank has an inlet and an outlet connected to its upper part and an outlet connected to its lower part; a partition is provided on the inner side of the drying tank, which divides the internal space of the drying tank into a drying chamber and an air supply chamber, the drying chamber being located above the air supply chamber, and the air supply chamber having an air inlet; A three-dimensional spiral track is installed inside the drying tank, with one end connected to the feed inlet and the other end spiraling downwards and connecting to the discharge outlet; ventilation holes are distributed on the three-dimensional spiral track. A two-dimensional spiral distribution tube is installed inside the drying tank and located below the three-dimensional spiral track; one end of the two-dimensional spiral distribution tube passes downward through the partition and is connected to the air supply chamber, and the other end extends spirally in the horizontal direction; multiple air outlets are evenly distributed on the upper side of the two-dimensional spiral distribution tube; A fan is installed in the air supply chamber; A heater is installed in the air supply chamber. The airflow generated by the fan is heated by the heater to form hot air, which enters the drying chamber from bottom to top through the two-dimensional spiral distribution pipe.

2. The drying equipment for salt extraction from desulfurization liquid according to claim 1, characterized in that, A dustproof screen is installed at the air inlet.

3. The drying equipment for desulfurization liquid salt extraction according to claim 1, characterized in that, An airflow diffuser is connected to the air outlet.

4. The drying equipment for desulfurization liquid salt extraction according to claim 3, characterized in that, The airflow diffuser includes: The column has its lower part detachably connected to the air outlet; the upper part of the column expands to form a hollow expansion section, the interior of which is connected to the air outlet, and the bottom of the expansion section has multiple exhaust holes with the air outlet direction pointing diagonally downward; the top of the expansion section is closed. A baffle is connected to the outer side of the middle part of the column and located below the exhaust port. An upwardly oriented guide channel is formed between the upper side of the baffle and the bottom of the column.

5. The drying equipment for desulfurization liquid salt extraction according to claim 4, characterized in that, The top of the enlarged portion is pointed.

6. The drying equipment for desulfurization liquid salt extraction according to claim 4, characterized in that, The downward projection of the baffle is located within the downward projection of the enlarged portion.

7. The drying equipment for desulfurization liquid salt extraction according to claim 4, characterized in that, The upper side of the baffle is arc-shaped.

8. The drying equipment for desulfurization liquid salt extraction according to claim 4, characterized in that, The baffles are arranged at intervals along the circumference of the column.

9. The drying equipment for desulfurization liquor salt extraction according to any one of claims 1 to 8, characterized in that, It also includes a microwave drying chamber, the inlet of which is connected to the outlet.

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