Efficient discharging and drying device
By using a combination design of pre-fighting, thermal coil and material guide plate in the discharge drying device, the problems of low drying efficiency and insufficient hot air utilization in the prior art are solved, and the drying effect of efficient energy utilization and improvement is achieved.
Patent Information
- Application Number
- CN202420643065.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the prior art, the drying efficiency of the discharge drying device is low, resulting in low production efficiency, and insufficient utilization of hot air, wasting energy and increasing production costs.
An efficient discharge drying device is designed. Through the combination of pre-fighting, pre-fighting air inlet and thermal coil, the heat generated during the lye configuration and the heat after drying are recycled and the product is pre-dried. At the same time, through the setting of the guide plate, the residence time of humic acid in the drying box is increased, and the drying effect is improved.
It greatly improves the energy utilization efficiency, improves the subsequent drying rate, enhances the drying effect, and avoids the impact on continuous production.
Smart Images
Figure CN222578695U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material drying in humic acid production, in particular to a high-efficiency material drying device. Background Art
[0002] The discharge drying device is an indispensable part of the humic acid production process. It is used to evaporate the water in the humic acid solution or suspension to obtain a dry humic acid product. The design and operation of the drying device directly affects the quality and production efficiency of the humic acid product.
[0003] In workshop production, products are dried in a single drying box, but there is a problem of low drying efficiency, which affects continuous production. In addition, after drying, the hot air discharged from the drying box is not well utilized, which wastes a lot of energy and increases production costs. Utility Model Content
[0004] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide a high-efficiency discharging drying device, which, through the coordinated use of a pre-oven, a pre-oven air inlet and a heat-conducting coil, recycles the heat generated during the preparation of the alkali solution and the heat after the drying is completed, and pre-dries the product, thereby greatly improving the energy utilization efficiency and the subsequent drying rate. By setting a material guide plate, the residence time of humic acid in the drying box is increased, the drying effect is improved, and the impact on continuous production is avoided.
[0005] The utility model is realized by adopting the following technical solutions:
[0006] The high-efficiency discharging and drying device comprises a solid-liquid separator, an alkali solution preparation tank and a blower. The solid-liquid separator is connected to the neutralization tank through a filter, the solid-liquid separator is connected to the drying box through a pre-drying box, the blower is connected to the drying box through a heater, a conveyor belt is provided inside the pre-drying box, a heat-conducting coil is provided above the conveyor belt, a cooling jacket is provided on the outside of the alkali solution preparation tank, and the cooling jacket is connected to the heat-conducting coil through a pipeline.
[0007] In the alkali solution preparation tank, water and calcium oxide react to produce calcium hydroxide, which releases a large amount of heat. The heat is exchanged through the cooling jacket. After the temperature is increased in the cooling jacket, the liquid phase enters the heat transfer coil to increase the temperature of the pre-oven.
[0008] The solid-liquid separator is connected with a feeding pipeline, and a first-level material discharge guide plate is arranged between the solid-liquid separator and the pre-drying oven.
[0009] The alkali solution preparation tank is connected with the neutralization tank through a pipeline. The bottom of the pre-drying oven is provided with an inclined bottom plate, and a vibrator is provided under the inclined bottom plate.
[0010] The upper part of the pre-oven is provided with a pre-oven air inlet, and the lower part of the pre-oven is provided with a pre-oven impurity discharge port.
[0011] An elevator is arranged between the pre-drying box and the drying box, and the conveyor belt is connected with the elevator through a secondary material unloading guide plate.
[0012] A material guide plate is arranged inside the drying box, and a vent hole and a material guide edge are arranged on the material guide plate. A drying box air inlet is arranged at the connection between the heater and the drying box, and the drying box air inlet is located below the material guide plate.
[0013] There are multiple guide plates, which are arranged longitudinally on both sides of the inner wall of the drying box. The guide plates are inclined, and the material falls from one plate to the next guide plate by gravity.
[0014] The top of the drying box is provided with a drying box air outlet, and the drying box air outlet is connected to the heat conducting coil through an induced draft fan.
[0015] The working principle of the utility model is:
[0016] The material enters the solid-liquid separator through the feed pipe for separation. After the separation, the liquid phase is filtered by the filter, and part of it enters the neutralization tank for storage. The separated solid phase enters the pre-drying oven through the first-level unloading guide plate, and the conveyor belt starts working. In the alkali solution preparation tank, water and calcium oxide react to produce calcium hydroxide, which releases a large amount of heat. The heat is exchanged through the cooling sleeve. The liquid phase after heating in the cooling sleeve enters the heat conduction coil to heat the pre-drying oven; the pre-dried humic acid passes through the second-level unloading guide plate and the elevator, and enters the drying box through the feed port at the top of the drying box. The blower and heater start working, and the humic acid is dried through the guide plate and the air inlet of the drying box. The hot air after drying in the drying box passes through the air outlet of the drying box and enters the pre-drying oven through the induced draft fan to pre-dry the material. Among them, there are multiple guide plates, which are arranged longitudinally on both sides of the inner wall of the drying box. The guide plates are inclined. The material falls from one plate to the next guide plate by gravity.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] By adopting the high-efficiency discharging drying device of the utility model, the heat generated in the process of preparing the alkali solution and the heat after the drying are recovered and utilized through the coordinated use of the pre-drying oven, the pre-drying oven air inlet and the heat-conducting coil, the product is pre-dried, which greatly improves the energy utilization efficiency and also improves the subsequent drying rate; through the setting of the guide plate, the residence time of humic acid in the drying oven is increased, the drying effect is improved, and the influence on continuous production is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1This is a schematic diagram of the structure of the high-efficiency discharging drying device of the utility model;
[0020] Figure 2 This is a structural schematic diagram of the material guide plate of the utility model;
[0021] In the figure: 1. solid-liquid separator; 2. filter; 3. neutralization tank; 4. alkali solution preparation tank; 5. pre-drying oven; 6. elevator; 7. drying box; 8. feeding pipe; 9. primary unloading guide plate; 10. cooling jacket; 11. conveyor belt; 12. heat transfer coil; 13. air inlet of pre-drying oven; 14. inclined bottom plate; 15. impurity discharge port of pre-drying oven; 16. secondary unloading guide plate; 17. guide plate; 18. blower; 19. heater; 20. air inlet of drying box; 21. air outlet of drying box; 22. induced draft fan; 23. vent; 24. guide edge. DETAILED DESCRIPTION
[0022] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] Example 1
[0024] like Figure 1 As shown, the high-efficiency discharge drying device comprises a solid-liquid separator 1, an alkali solution preparation tank 4 and a blower 18. The solid-liquid separator 1 is connected to the neutralization tank 3 through a filter 2, and the solid-liquid separator 1 is connected to the drying box 7 through a pre-drying oven 5. The blower 18 is connected to the drying box 7 through a heater 19. A conveyor belt 11 is provided inside the pre-drying oven 5, and a heat conduction coil 12 is provided above the conveyor belt 11. A cooling sleeve 10 is provided outside the alkali solution preparation tank 4, and the cooling sleeve 10 is connected to the heat conduction coil 12 through a pipeline. A feed pipeline 8 is connected to the solid-liquid separator 1, and a first-level material discharge guide plate 9 is provided between the solid-liquid separator 1 and the pre-drying oven 5. The alkali solution preparation tank 4 is connected to the neutralization tank 3 through a pipeline, and an inclined bottom plate 14 is provided at the bottom of the pre-drying oven 5, and a vibrator is provided below the inclined bottom plate 14. A pre-drying oven air inlet 13 is provided above the pre-drying oven 5, and a pre-drying oven impurity discharge port 15 is provided below the pre-drying oven 5. An elevator 6 is provided between the pre-drying oven 5 and the drying oven 7, and the conveyor belt 11 is connected to the elevator 6 through a secondary unloading guide plate 16. Figure 2 As shown, a guide plate 17 is provided inside the drying box 7, and a vent hole 23 and a guide edge 24 are provided on the guide plate 17. A drying box air inlet 20 is provided at the connection between the heater 19 and the drying box 7, and the drying box air inlet 20 is located below the guide plate 17. There are multiple guide plates 17, which are arranged longitudinally on both sides of the inner wall of the drying box 7. The guide plates 17 are inclined, and the material falls from one plate to the next guide plate 17 by gravity. A drying box air outlet 21 is provided on the top of the drying box 7, and the drying box air outlet 21 is connected to the heat conducting coil 12 through an induced draft fan 22.
[0025] The above-mentioned high-efficiency discharging drying device, when in operation, comprises the following steps:
[0026] (1) The material enters the solid-liquid separator 1 through the feed pipe 8 for separation. After the separation, the liquid phase is filtered through the filter 2 and partially enters the neutralization tank 3 for storage. The separated solid phase enters the pre-drying oven 5 through the primary material discharge guide plate 9. The conveyor belt 11 starts to work. In the alkali solution preparation tank 4, water and calcium oxide react to produce calcium hydroxide, releasing a large amount of heat, which is heat exchanged by the cooling jacket 10. The liquid phase heated in the cooling jacket 10 enters the heat conducting coil 12 to heat the pre-drying oven 5; (2) After the pre-drying, the humic acid passes through the secondary material discharge guide plate 16 and the elevator 6, and enters the drying box 7 through the feed port at the top of the drying box 7. The blower 18 and the heater 19 start to work. The humic acid is dried through the material guide plate 17 and the drying box air inlet 20. The hot air after drying in the drying box 7 passes through the drying box air outlet 21 and the induced draft fan 22 to enter the pre-drying oven 5 to pre-dry the material.
Claims
1. A high-efficiency discharging drying device, characterized in that: The invention comprises a solid-liquid separator (1), an alkali solution preparation tank (4) and a blower (18). The solid-liquid separator (1) is connected to a neutralization tank (3) via a filter (2). The solid-liquid separator (1) is connected to a drying box (7) via a pre-drying box (5). The blower (18) is connected to the drying box (7) via a heater (19). A conveyor belt (11) is provided inside the pre-drying box (5). A heat conducting coil (12) is provided above the conveyor belt (11). A cooling jacket (10) is provided outside the alkali solution preparation tank (4). The cooling jacket (10) is connected to the heat conducting coil (12) via a pipeline.
2. The high-efficiency discharging drying device according to claim 1 is characterized in that: The solid-liquid separator (1) is connected to a feed pipe (8), and a first-level material discharge guide plate (9) is provided between the solid-liquid separator (1) and the pre-drying oven (5).
3. The high-efficiency discharging drying device according to claim 1 is characterized in that: The alkali solution preparation tank (4) is connected to the neutralization tank (3) through a pipeline. The bottom of the pre-drying oven (5) is provided with an inclined bottom plate (14), and a vibrator is provided below the inclined bottom plate (14).
4. The high-efficiency discharging drying device according to claim 1 is characterized in that: A pre-oven air inlet (13) is provided above the pre-oven (5), and a pre-oven impurity discharge port (15) is provided below the pre-oven (5).
5. The high-efficiency discharging drying device according to claim 1 is characterized in that: An elevator (6) is provided between the pre-drying oven (5) and the drying oven (7), and a conveyor belt (11) is connected to the elevator (6) via a secondary material discharge guide plate (16).
6. The high-efficiency discharging drying device according to claim 1, characterized in that: A material guide plate (17) is provided inside the drying box (7), and a vent hole (23) and a material guide edge (24) are provided on the material guide plate (17). A drying box air inlet (20) is provided at the connection between the heater (19) and the drying box (7), and the drying box air inlet (20) is located below the material guide plate (17).
7. The high-efficiency discharging drying device according to claim 1, characterized in that: The top of the drying box (7) is provided with a drying box air outlet (21), and the drying box air outlet (21) is connected to the heat conducting coil (12) via an induced draft fan (22).