Spray dryer for preparing manganese adsorbent material with low solution loss and long service life

Abstract

The utility model discloses a low-dissolution-loss long-service-life spray dryer for preparing a manganese adsorbent material, which relates to the technical field of manganese adsorbent material preparation and is technically characterized by comprising a dryer shell, a controller, a discharge pipe, a suction pipe, a centrifugal atomizer, a feeder and a liquid pump. A heating mechanism used for heating liquid mist is arranged on the dryer shell, the heating mechanism comprises an air outlet ring rotationally connected to the dryer shell, and a transfer ring is arranged on the side wall of the air outlet ring in a communicating mode. The material quality problem caused by local overheating or non-uniform drying is reduced, the dissolution loss of the material is low, and the overall service life of the equipment is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to the preparation technical field of manganese series adsorbent material, especially relates to a low solution loss long life manganese series adsorbent material preparation is with spray drier. BACKGROUND

[0002] Manganese series adsorbent is a kind of adsorbent material with manganese element as key component, is widely used in environmental governance, chemical production and other fields, in wastewater treatment, can efficiently remove heavy metal ions, such as lead, mercury etc., in gas purification, can adsorb sulfur dioxide, formaldehyde and other harmful gases, and it has strong adsorption capacity, high selectivity, and part of manganese series adsorbent can be regenerated and reused, reduce cost.

[0003] Spray drier is the key equipment in the preparation process of manganese series adsorbent, it is a kind of equipment that liquid material is converted into dry powder or particle, traditional spray drier adopts hot air spiral air inlet mode, hot air enters in spiral mode, and the contact of hot air with liquid mist sprayed by centrifugal atomizer is not uniform enough, for example, near the top in drying chamber, the contact frequency and intensity of hot air with liquid mist in part area are insufficient, leading to limited heat and mass transfer area, since hot air is not evenly distributed, the thermal field formed in drying chamber is also not uniform, which makes the drying degree of material in drying process different in different positions, leading to inconsistent water content of manganese series adsorbent, affecting the stability of manganese series adsorbent, in order to solve the above problems, we propose this low solution loss long life manganese series adsorbent material preparation is with spray drier. CONTENT OF UTILITY MODEL

[0004] In view of the deficiency of prior art, the utility model provides a low solution loss long life manganese series adsorbent material preparation is with spray drier, solves the problem that traditional manganese series adsorbent spray drier adopts hot air spiral air inlet mode, and the contact of hot air with liquid mist sprayed by centrifugal atomizer is not uniform enough.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a low solution loss long life manganese series adsorbent material preparation is with spray drier, including: dryer shell, controller, discharge pipe, suction pipe, centrifugal atomizer, feeder and liquid pump, the lower end of discharge pipe is connected with guide shell, the dryer shell is equipped with heating mechanism for heating liquid mist, the heating mechanism includes the air outlet ring that rotates and connects on the dryer shell, the side wall of air outlet ring is connected with transfer ring, the transfer ring is connected with hot air pipe through air inlet main pipe, the first motor is installed on the upper end of dryer shell through mounting assembly, the first motor output shaft and the side wall of air outlet ring are equipped with first gear and second gear respectively, the transfer ring is equipped with shunt mechanism for dispersing airflow.

[0006] Preferably, the flow distribution mechanism comprises two air inlet branches in communication with the transfer ring, and the ends of the air inlet branches away from the transfer ring are in communication with the hot gas pipe.

[0007] Preferably, a heating jacket is fixedly connected to the side wall of the dryer shell, and a plurality of electric heating pipes and a temperature sensor are arranged on the heating jacket.

[0008] Preferably, a second motor is fixedly connected to the lower end of the material guiding shell, a driving shaft is fixedly connected to the output shaft of the second motor, and two scrapers are fixedly connected to the side wall of the driving shaft.

[0009] Preferably, two stirring plates are fixedly connected to the side wall of the driving shaft, and a heat preservation jacket is arranged on the side wall of the heating jacket.

[0010] Preferably, two material guiding plates are fixedly connected to the inner bottom of the material guiding shell, and the material guiding shell is arranged in an inclined manner.

[0011] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0012] The utility model discloses a heating mechanism is set up, hot air can be dispersed in the equipment, can make hot air all -round, more evenly with liquid mist contact, ensure that every liquid mist particle can fully and evenly be heated, reduce the material quality problem of the local overheating or drying uneven, the structure and performance of material can be better kept, reduce the material solution loss caused by improper drying, can also reduce the wall sticking phenomenon not only can reduce material waste, prevent the corrosion and damage of the equipment caused by the accumulation of wall sticking material, thereby prolong the overall service life of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 A structure schematic view of a low-dissolution-loss long-service-life manganese-based adsorbent material preparation spray dryer is provided for the utility model;

[0014] Fig. 2 A sectional view of a low-dissolution-loss long-service-life manganese-based adsorbent material preparation spray dryer is provided for the utility model;

[0015] Fig. 3 For Fig. 2 The structure enlarged view of A of the utility model;

[0016] Fig. 4 A side view of a low-dissolution-loss long-service-life manganese-based adsorbent material preparation spray dryer is provided for the utility model;

[0017] Fig. 5 Another sectional view of a low-dissolution-loss long-service-life manganese-based adsorbent material preparation spray dryer is provided for the utility model;

[0018] Fig. 6 This is another side view of a spray dryer for preparing a low-dissolution, long-life manganese-based adsorbent material proposed in this utility model.

[0019] In the diagram: 1. Dryer shell, 2. Controller, 3. Discharge pipe, 4. Guide shell, 5. Guide plate, 6. Suction pipe, 7. Hot air pipe, 8. Centrifugal atomizer, 9. Feeder, 10. Liquid pump, 11. Inlet branch pipe, 12. Transfer ring, 13. First motor, 14. Main inlet pipe, 15. Outlet ring, 16. Heating jacket, 17. Electric heating tube, 18. Temperature sensor, 19. Insulation jacket, 20. Second motor, 21. Stirring plate, 22. Drive shaft, 23. Scraper. Detailed Implementation

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] This utility model provides a technical solution:

[0022] Please see Figs. 1-6 A spray dryer for preparing low-loss, long-life manganese-based adsorbent materials includes: a dryer shell 1, a controller 2, a discharge pipe 3, a suction pipe 6, a centrifugal atomizer 8, a feeder 9, and a liquid pump 10. The controller 2, discharge pipe 3, suction pipe 6, centrifugal atomizer 8, feeder 9, and liquid pump 10 are existing technologies in the field of spray dryers, and their working principles are also existing technologies, so they will not be described in detail. A guide shell 4 is connected to the lower end of the discharge pipe 3. A heating mechanism for heating the liquid mist is provided on the dryer shell 1. The device includes an outlet ring 15 rotatably connected to the dryer housing 1. A transfer ring 12 is connected to the side wall of the outlet ring 15. The outlet ring 15 and the transfer ring 12 are rotatably connected. The sealing assembly of the outlet ring 15, the transfer ring 12, and the dryer housing 1 is not shown in the figure. A hot air pipe 7 is connected to the transfer ring 12 through the main air inlet pipe 14. A first motor 13 is mounted on the upper end of the dryer housing 1 through an installation assembly (shown in the figure, with a Z-shaped cross-section). The output shaft of the first motor 13 and the side wall of the outlet ring 15 are respectively provided with a first gear and a second gear.

[0023] The transfer ring 12 is provided with a flow splitting mechanism for dispersing airflow. The flow splitting mechanism includes two air inlet branch pipes 11 connected to the transfer ring 12. The end of the air inlet branch pipe 11 away from the transfer ring 12 is connected to the hot air pipe 7.

[0024] Furthermore, a heating jacket 16 is fixedly connected to the side wall of the dryer shell 1. The heating jacket 16 is equipped with multiple electric heating tubes 17 and a temperature sensor 18. The heating part of the electric heating tubes 17 and the probe of the temperature sensor 18 are located inside the heating jacket 16. The heating jacket 16 is filled with heating oil, which can preheat the shell of the spray dryer before it starts working. This allows the material and hot air entering the shell to reach the appropriate drying temperature more quickly, reducing heat loss. For example, when drying heat-sensitive materials, preheating can prevent the material from being affected by sudden cooling and heating, while also accelerating the drying speed and improving production efficiency. The continuous heat preservation function can reduce heat dissipation from the shell to the external environment, reducing energy consumption. Taking large-scale production as an example, under long-term operation, the heat preservation design can save a lot of energy consumption and reduce production costs.

[0025] Furthermore, a second motor 20 is fixedly connected to the lower end of the feed guide housing 4, and a drive shaft 22 is fixedly connected to the output shaft of the second motor 20. Two scrapers 23 are fixedly connected to the side wall of the drive shaft 22. The rotation of the scrapers 23 can prevent particles from sticking to the inner wall of the dryer housing 1 and speed up the particle feeding.

[0026] Furthermore, two stirring plates 21 are fixedly connected to the side wall of the drive shaft 22, which can accelerate the discharge of materials and avoid bridging. The side wall of the heating jacket 16 is provided with a heat insulation sleeve 19, which can keep the heating jacket 16 warm and reduce heat loss.

[0027] Furthermore, two guide plates 5 are fixedly connected to the bottom of the inner part of the guide housing 4. The cross-section of the guide plate 5 is triangular, which allows the material to be discharged in a concentrated manner towards the center. The guide housing 4 is inclined, and a discharge pipe is connected to the side wall of the guide housing 4. A valve is provided on the discharge pipe, which is not shown in the figure.

[0028] In practical use, the working principle of this utility model is as follows:

[0029] The hot air pipe 7 is connected to an external heat source via a pipe, the suction pipe 6 is connected to an external cyclone separator via a pipe, and the liquid pump 10 is connected to an external manganese-based adsorbent material liquid storage device via a pipe. Before starting the liquid pump 10, multiple electric heating tubes 17 on the heating jacket 16 can be started first. The heating jacket 16 preheats the dryer shell 1. After starting the liquid pump 10, the manganese-based adsorbent material liquid enters the centrifugal atomizer 8 and is centrifuged and thrown out as liquid mist. The hot air generated by the heat source enters the middle through the hot air pipe 7 and the main air inlet pipe 14. Inside the rotating ring 12, the hot air inside the intermediate rotating ring 12 enters the exhaust ring 15, and finally the hot air is discharged from the exhaust hole (shown in the figure) under the exhaust ring 15. The first motor 13 is started, and the output shaft of the first motor 13 drives the exhaust ring 15 to rotate through the meshing of the first gear and the second gear. This causes the sprayed hot air to be dispersed by centrifugal force and come into contact with the manganese adsorbent material liquid mist, causing the water in the droplets to evaporate rapidly. Finally, dry powder or particles are formed and sucked away by the external cyclone separator from the discharge pipe 3 or the side suction pipe 6.

[0030] Secondly, by starting the second motor 20, the output shaft of the second motor 20 drives the drive shaft 22 to rotate, and the drive shaft 22 drives the scraper 23 to rotate, thus preventing the material from sticking to the inner wall of the dryer shell 1.

[0031] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials, comprising: The dryer housing (1), controller (2), discharge pipe (3), suction pipe (6), centrifugal atomizer (8), feeder (9) and liquid pump (10) are characterized in that: the lower end of the discharge pipe (3) is connected to a guide housing (4), the dryer housing (1) is provided with a heating mechanism for heating liquid mist, the heating mechanism includes an air outlet ring (15) rotatably connected to the dryer housing (1), the side wall of the air outlet ring (15) is connected to a transfer ring (12), the transfer ring (12) is connected to a hot air pipe (7) through an air inlet pipe (14), the upper end of the dryer housing (1) is equipped with a first motor (13) through an installation assembly, the output shaft of the first motor (13) and the side wall of the air outlet ring (15) are respectively provided with a first gear and a second gear, and the transfer ring (12) is provided with a flow diversion mechanism for dispersing airflow.

2. The spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials according to claim 1, characterized in that: The diversion mechanism includes two intake branch pipes (11) connected on the transfer ring (12), and the end of the intake branch pipe (11) away from the transfer ring (12) is connected to the hot air pipe (7).

3. The spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials according to claim 2, characterized in that: A heating sleeve (16) is fixedly connected to the side wall of the dryer housing (1), and the heating sleeve (16) is provided with multiple electric heating tubes (17) and a temperature sensor (18).

4. The spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials according to claim 3, characterized in that: The lower end of the material guide housing (4) is fixedly connected to a second motor (20), the output shaft of the second motor (20) is fixedly connected to a drive shaft (22), and two scrapers (23) are fixedly connected to the side wall of the drive shaft (22).

5. The spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials according to claim 4, characterized in that: Two stirring plates (21) are fixedly connected to the side wall of the drive shaft (22), and the side wall of the heating sleeve (16) is provided with a heat insulation sleeve (19).

6. The spray dryer for preparing low-dissolution, long-life manganese-based adsorbent materials according to claim 1, characterized in that: Two guide plates (5) are fixedly connected to the bottom of the guide housing (4), and the guide housing (4) is inclined.

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