Humic acid spray drying equipment

Abstract

The utility model provides humic acid spray drying equipment which comprises a hot air supply assembly, a spray drying assembly, a heat energy recovery assembly, a cyclone separator, a cloth bag dust removal assembly and a waste gas conveying assembly, the heat energy recovery assembly comprises a heat preservation shell, a first heat exchange piece and a second heat exchange piece, and the second heat exchange piece is installed in the right side of the heat preservation shell. Compared with the prior art, the spray drying device has the advantages that the waste gas conveying assembly is arranged, the direct exhaust mode is changed, air which is still preheated is conveyed into the heat energy recycling assembly, raw materials which are about to enter the spray drying assembly are preheated, the heat energy recycling assembly is used for recycling waste gas, and the heat exchange piece I is arranged on the left side of the interior of the heat preservation shell. And the heat energy recovery assembly is arranged, so that heat in waste gas can be exchanged to materials which are about to be in contact with hot air, the materials can be aligned in advance for preheating, and energy waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray drying equipment, in particular to humic acid spray drying equipment. Background Art

[0002] Humic acid is a natural organic macromolecular compound that originates from the decomposition and transformation of plant and animal remains in soil and sediments through microorganisms, as well as the accumulation of subsequent chemical and biochemical processes. In the natural environment, humic acid is widely present in soil, peat, lignite, weathered coal and water bodies. It appears as brown or black powder or granules and has weak acidic properties.

[0003] Humic acid needs to go through a specific production process to form a product, and there is often a drying step to meet the needs of production and manufacturing. Some companies use spray drying equipment to dry humic acid.

[0004] Many existing spray drying equipment lacks an efficient heat recovery mechanism. A large amount of hot air containing moisture generated during the drying process is directly discharged into the atmosphere, which not only wastes a lot of heat energy, but may also have a certain impact on the environment. Even if some equipment is equipped with a heat recovery device, the efficiency is often not high enough and the heat energy in these high-temperature gases cannot be fully recovered and utilized. Therefore, we hope to design a spray drying equipment with a new structure to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a humic acid spray drying device to solve the problems raised in the above background technology.

[0006] The utility model is realized by the following technical scheme: a humic acid spray drying device, comprising: a hot air supply component, a spray drying component, a heat recovery component, a cyclone separator, a bag dust removal component and an exhaust gas conveying component, wherein the hot air supply component is connected to the upper end of the spray drying component through a pipeline, and the lower end pipeline of the spray drying component is connected to the upper end of the cyclone separator;

[0007] The cyclone separator is connected to the lower end of the bag dust removal assembly through a pipeline, the bag dust removal assembly is connected to the air inlet end of the exhaust gas conveying assembly through a pipeline, the exhaust gas conveying assembly is connected to the heat energy recovery assembly through a pipeline, and the heat energy recovery assembly is installed at the upper end of the spray drying assembly;

[0008] The heat recovery component includes a heat-insulating shell, a heat exchange component 1, and a heat exchange component 2. The heat exchange component 2 is installed inside the right side of the heat-insulating shell, and the heat exchange component 1 is installed inside the left side of the heat-insulating shell.

[0009] As a preferred embodiment, the heat energy recovery component also includes a guide pipe, a feed pipe, an exhaust gas inlet pipe, a distribution pipe and a delivery pipe. The exhaust gas inlet pipe is installed on the right side of the insulation shell, and the insulation shell is connected to the exhaust gas delivery component through the exhaust gas inlet pipe. In actual use, the insulation shell is sealed except for the air inlet and the air outlet to ensure air tightness while also ensuring the insulation effect. At the same time, a condensate discharge pipe is provided on the lower side of the rear end of the insulation shell, and a switch valve is installed on it.

[0010] As a preferred embodiment, a feed pipe is installed on the upper right side of the insulation shell, the feed pipe is connected to the external raw material supply pipe, the lower side of the feed pipe is fixedly connected to the middle of the upper end of the distribution pipe, and the distribution pipe is connected to the second upper end of the heat exchange component through multiple diversion pipes.

[0011] As a preferred embodiment, the right side of the upper end of the heat exchanger one is connected to the left side of the lower end of the heat exchanger two through multiple guide pipes, and the right side of the lower end of the heat exchanger is connected to the delivery pipe through multiple branch pipes.

[0012] As a preferred embodiment, the heat exchanger component 1 includes a liquid tank and a connecting sheet, and every two of the liquid tanks are connected by a plurality of connecting sheets distributed at equal intervals. The upper and lower sides of the heat exchanger component 1 are formed by multiple groups of liquid tanks connected to each other by a plurality of connecting sheets distributed at equal intervals, and the multiple liquid tanks at the same height are not directly connected to each other. In actual use, except for the part connected to multiple branch pipes on the right side of the lower end of the heat exchange component, the part connected to multiple guide pipes on the right side of the upper end, and the part connected to multiple diversion pipes on the right side of the upper surface of the heat exchange component 2, and the part connected to multiple guide pipes on the left side of the lower end, the rest of the structure and size are the same. The heat exchanger component 1 cooperates with the heat exchanger component 2 to exchange heat in the exhaust gas to the material that is about to contact the hot air, and can be aligned in advance for preheating to reduce energy waste.

[0013] As a preferred embodiment, the lower side of the liquid tank on the upper side of each heat exchanger is connected to the upper side of the liquid tank at its lower end through a plurality of copper tubes distributed at equal intervals, and the number and distribution positions of the liquid tanks on the lower side of the heat exchanger match the number and distribution positions of the branch pipes.

[0014] As a preferred embodiment, the left and right sides of the upper end of the liquid tank on the upper side of each of the heat exchangers are connected to the top of the insulation shell through a suspension rod, and the left and right sides of the lower end of the liquid tank on the lower side of each of the heat exchangers are connected to the bottom of the insulation shell through a support rod.

[0015] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by setting the exhaust gas conveying component, the direct exhaust method is changed, and the still preheated air is conveyed to the inside of the heat recovery component, and the raw materials that are about to enter the spray drying component are preheated, thereby reducing the water vapor and heat in the air, and achieving the purpose of energy saving and environmental protection;

[0016] The setting of the heat energy recovery component, in actual use, after the hot air coming out of the hot air supply component dries the atomized material in the spray drying component, the air carries heat and water vapor, etc., and is processed by the cyclone separator and the bag dust removal component, and then enters the heat energy recovery component through the exhaust gas conveying component. When the hot air enters the rear side of the inner insulation shell, it will heat the materials in the heat exchanger one, the heat exchanger two and the multiple guide pipes. On the contrary, the materials absorb the heat of the air and reduce the heat energy contained therein. Since the main structures of the heat exchanger one and the heat exchanger two are the same, their more ventilated structure cooperates with the guide pipe to increase the heat exchange area and improve the heat exchange effect. When the material passes through the heat exchanger two and the guide pipe into the heat exchanger one, it is finally collected into the conveying pipe through multiple branches and transported to the atomizer at the top of the spray drying component. The heat in the exhaust gas can be exchanged with the material that is about to contact the hot air, and it can be aligned in advance for preheating to reduce energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of a humic acid spray drying device.

[0019] Figure 2 This is a schematic diagram of the internal structure of a heat recovery component of a humic acid spray drying device of the utility model.

[0020] Figure 3 This is a schematic diagram of a conveying pipe structure of a humic acid spray drying device of the utility model.

[0021] Figure 4 The utility model is a schematic diagram of a top view of a heat exchange component of a humic acid spray drying device.

[0022] In the figure, 100-hot air supply component;

[0023] 200-spray drying assembly;

[0024] 300-heat recovery component, 310-insulation shell, 320-heat exchange component 1, 321-liquid tank, 322-connecting sheet, 330-discharge pipe, 340-guiding pipe, 350-feed pipe, 360-exhaust gas inlet pipe, 370-manifold, 380-heat exchange component 2, 390-transport pipe, 391-branch pipe;

[0025] 400-cyclone separator;

[0026] 500-Bag dust removal assembly;

[0027] 600 - Exhaust gas conveying assembly. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1 to 4 The utility model provides a technical solution: a humic acid spray drying device, comprising: a hot air supply component 100, a spray drying component 200, a heat recovery component 300, a cyclone separator 400, a bag dust removal component 500 and an exhaust gas conveying component 600, the hot air supply component 100 is connected to the upper end of the spray drying component 200 through a pipeline, and the lower end pipeline of the spray drying component 200 is connected to the upper end of the cyclone separator 400;

[0030] The cyclone separator 400 is connected to the lower end of the bag dust removal assembly 500 through a pipeline, the bag dust removal assembly 500 is connected to the air inlet end of the exhaust gas conveying assembly 600 through a pipeline, the exhaust gas conveying assembly 600 is connected to the heat energy recovery assembly 300 through a pipeline, and the heat energy recovery assembly 300 is installed at the upper end of the spray drying assembly 200;

[0031] The heat recovery assembly 300 includes an insulating shell 310 , a heat exchanger 1 320 , and a heat exchanger 2 380 . The heat exchanger 2 380 is installed inside the right side of the insulating shell 310 , and the heat exchanger 1 320 is installed inside the left side of the insulating shell 310 .

[0032] As the first embodiment of the utility model, by setting up the exhaust gas conveying component 600, the direct exhaust method is changed, and the still preheated air is conveyed to the inside of the heat energy recovery component 300 to preheat the raw materials that are about to enter the spray drying component 200, thereby reducing the water vapor and heat in the air and achieving the purpose of energy saving and environmental protection.

[0033] See also Figures 1 to 4 The heat recovery component 300 also includes a guide pipe 340, a feed pipe 350, an exhaust gas inlet pipe 360, a distribution pipe 370 and a delivery pipe 390. The exhaust gas inlet pipe 360 ​​is installed on the right side of the insulation shell 310. The insulation shell 310 is connected to the exhaust gas delivery component 600 through the exhaust gas inlet pipe 360. In actual use, the insulation shell 310 is sealed except for the air inlet and the air outlet to ensure air tightness while also ensuring the insulation effect. At the same time, a condensate discharge pipe is provided on the lower side of the rear end of the insulation shell 310, and a switch valve is installed on it.

[0034] A feed pipe 350 is installed on the upper right side of the insulation shell 310, and the feed pipe 350 is connected to the external raw material supply pipe. The lower side of the feed pipe 350 is fixedly connected to the middle of the upper end of the branch pipe 370, and the branch pipe 370 is connected to the upper end of the heat exchange component 2 380 through multiple diversion pipes.

[0035] The right side of the upper end of the heat exchanger 1 320 is connected to the left side of the lower end of the heat exchanger 2 380 through a plurality of guide pipes 340 , and the right side of the lower end of the heat exchanger 1 320 is connected to the delivery pipe 390 through a plurality of branch pipes 391 .

[0036] The heat exchanger 320 includes a liquid tank 321 and a connecting sheet 322. Every two liquid tanks 321 are connected by a plurality of connecting sheets 322 distributed at equal intervals. The upper and lower sides of the heat exchanger 320 are formed by multiple groups of liquid tanks 321 connected to each other by a plurality of connecting sheets 322 distributed at equal intervals, and the multiple liquid tanks 321 at the same height are not directly connected to each other. In actual use, except for the part connected to the multiple branch pipes 391 on the right side of the lower end of the heat exchange component, the part connected to the multiple guide pipes 340 on the right side of the upper end, and the part connected to the multiple diversion pipes 340 on the right side of the upper surface of the heat exchange component 2, and the part connected to the multiple guide pipes 340 on the left side of the lower end, the rest of the structure and size are the same. The heat exchanger 1 320 cooperates with the heat exchanger 2 380 to exchange the heat in the exhaust gas to the material that is about to contact the hot air, and can be aligned in advance for preheating to reduce energy waste.

[0037] The lower side of the liquid tank 321 on the upper side of each heat exchanger 320 is connected to the upper side of the liquid tank 321 at its lower end through multiple copper tubes distributed at equal intervals. The number and distribution positions of the liquid tanks 321 on the lower side of the heat exchanger 320 match the number and distribution positions of the branch pipes 391.

[0038] The left and right upper ends of the liquid tank 321 on the upper side of each heat exchanger 320 are connected to the top of the insulation shell 310 through a suspension rod, and the left and right lower ends of the liquid tank 321 on the lower side of each heat exchanger 320 are connected to the bottom of the insulation shell 310 through a support rod.

[0039] As the second embodiment of the utility model, based on the above-mentioned first embodiment, the setting of the heat recovery component 300, in actual use, after the hot air coming out of the hot air supply component 100 dries the atomized material in the spray drying component 200, the air carries heat and water vapor, etc., and is processed by the cyclone separator 400 and the bag dust removal component 500, and then enters the heat recovery component 300 through the exhaust gas conveying component 600 (composed of a high-pressure fan and an air duct). When the hot air enters the rear side of the heat-insulating shell 310, it will heat the materials in the heat exchange component 1 320, the heat exchange component 2 380 and the multiple guide pipes 340. On the contrary, the materials absorb the heat of the air and reduce the heat energy contained therein. 320 and the main structure of the heat exchanger 380 are the same. Its more ventilated structure cooperates with the guide pipe 340 to increase the heat exchange area and improve the heat exchange effect. After the material passes through the heat exchanger 380 and the guide pipe 340, it enters the heat exchanger 320, and is finally collected into the conveying pipe 390 through multiple branches 391 and conveyed to the atomizer on the top of the spray drying component 200. The heat in the exhaust gas can be exchanged with the material that is about to contact the hot air, and can be aligned in advance for preheating, thereby reducing energy waste (the above-mentioned hot air supply component 100, spray drying component 200, cyclone separator 400, and bag dust removal component 500 can all be products already available on the market, and their specific models can be selected according to actual usage requirements).

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A humic acid spray drying device, comprising: A hot air supply component (100), a spray drying component (200), a heat recovery component (300), a cyclone separator (400), a bag dust removal component (500), and an exhaust gas conveying component (600), characterized in that the hot air supply component (100) is connected to the upper end of the spray drying component (200) through a pipeline, and the lower end pipeline of the spray drying component (200) is connected to the upper end of the cyclone separator (400); The cyclone separator (400) is connected to the lower end of the bag dust removal assembly (500) through a pipeline, the bag dust removal assembly (500) is connected to the air inlet end of the exhaust gas conveying assembly (600) through a pipeline, the exhaust gas conveying assembly (600) is connected to the heat energy recovery assembly (300) through a pipeline, and the heat energy recovery assembly (300) is installed on the upper end of the spray drying assembly (200); The heat energy recovery component (300) comprises a heat-insulating shell (310), a heat exchange component 1 (320), and a heat exchange component 2 (380). The heat exchange component 2 (380) is installed inside the right side of the heat-insulating shell (310), and the heat exchange component 1 (320) is installed inside the left side of the heat-insulating shell (310).

2. A humic acid spray drying device as claimed in claim 1, characterized in that: The heat energy recovery component (300) further comprises a guide pipe (340), a feed pipe (350), an exhaust gas inlet pipe (360), a header pipe (370) and a delivery pipe (390); an exhaust gas inlet pipe (360) is installed on the right side of the heat-insulating shell (310); and the heat-insulating shell (310) is connected to the exhaust gas delivery component (600) via the exhaust gas inlet pipe (360).

3. A humic acid spray drying device as claimed in claim 2, characterized in that: A feed pipe (350) is installed on the upper right side of the heat-insulating shell (310), and the feed pipe (350) is connected to an external raw material supply pipe. The lower side of the feed pipe (350) is fixedly connected to the middle of the upper end of the branch pipe (370), and the branch pipe (370) is connected to the upper end of the second heat exchange component (380) through a plurality of branch pipes.

4. A humic acid spray drying device as claimed in claim 3, characterized in that: The right side of the upper end of the heat exchange component 1 (320) is connected to the left side of the lower end of the heat exchange component 2 (380) through a plurality of guide pipes (340), and the right side of the lower end of the heat exchange component 1 (320) is connected to the delivery pipe (390) through a plurality of branch pipes (391).

5. The humic acid spray drying equipment according to claim 1, characterized in that: The heat exchange element 1 (320) comprises a liquid tank (321) and a connecting sheet (322), and each two of the liquid tanks (321) are connected via a plurality of connecting sheets (322) distributed at equal intervals. The upper and lower sides of the heat exchange element 1 (320) are formed by a plurality of groups of liquid tanks (321) connected to each other via a plurality of connecting sheets (322) distributed at equal intervals, and the plurality of liquid tanks (321) at the same height are not directly connected to each other.

6. A humic acid spray drying device as claimed in claim 5, characterized in that: The lower side of the liquid tank (321) on the upper side of each heat exchange element (320) is connected to the upper side of the liquid tank (321) at its lower end through a plurality of copper tubes distributed at equal intervals, and the number and distribution positions of the liquid tanks (321) on the lower side of the heat exchange element (320) match the number and distribution positions of the branch pipes (391).

7. A humic acid spray drying device as claimed in claim 6, characterized in that: The left and right sides of the upper ends of the liquid tank (321) on the upper side of each heat exchanger (320) are connected to the top of the heat-insulating outer shell (310) via a suspension rod, respectively, and the left and right sides of the lower ends of the liquid tank (321) on the lower side of each heat exchanger (320) are connected to the bottom of the heat-insulating outer shell (310) via a support rod, respectively.

Images