A device for producing humic acid-containing coal water slurry additive

Abstract

The present application relates to a kind of for producing humic acid-containing coal-water slurry additive device;Including several reaction stirred tank monomer, and first storage tank and second storage tank;Several reaction stirred tank monomers between feeding device and first storage tank are parallel connection;Several reaction stirred tank monomers between feeding device and second storage tank are series connection;The present application can be used for dry production solid phase humic acid-containing coal-water slurry additive or wet production liquid phase humic acid-containing coal-water slurry additive using the same set of equipment, and according to the characteristics of dry method and wet method humic acid-containing coal-water slurry additive, adjust device, between series and parallel, flexible switching is carried out, to reach the purpose of improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of coal-water slurry additive production technology, specifically to an apparatus for producing coal-water slurry additives containing humic acid. Background Technology

[0002] Coal-water slurry is a new type of environmentally friendly liquid coal-based fuel with significant advantages over direct coal combustion. Coal-water slurry typically consists of coal, water, and additives, with the additives having a significant impact. Common coal-water slurry additives include naphthalene sulfonates, lignin sulfonates, humates, and polycarboxylate-based additives. Specifically: naphthalene-based additives have good viscosity-reducing effects but poor stability, high cost, and are environmentally unfriendly; lignin-based additives have abundant raw materials and low prices, but produce low slurry concentration and poor fluidity; polycarboxylate-based additives are costly and difficult to promote on a large scale; humic acid-containing coal-water slurry additives have the characteristics of low cost, good viscosity-reducing effects, and good fluidity. Humic acid additives include both solid and liquid phase types, requiring two different types of equipment for production, resulting in significant fixed investment for manufacturers. Furthermore, taking liquid-phase humic acid additives as an example, their low solubility and slow dissolution rate in water lead to low production efficiency. These shortcomings severely restrict the development of humic acid-based coal-water slurry additives. Summary of the Invention

[0003] The purpose of this invention is to provide an apparatus for producing humic acid-containing coal-water slurry additives, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An apparatus for producing humic acid-containing coal-water slurry additives, the apparatus comprising several stirred tank reactors for producing solid-phase and liquid-phase humic acid-containing coal-water slurry additives.

[0006] And a first storage tank for storing solid-phase coal-water slurry additives containing humic acid and a second storage tank for storing liquid-phase coal-water slurry additives containing humic acid.

[0007] The solid material outlets of several reaction stirred tank units are respectively connected to the first storage tank;

[0008] The liquid phase outlet at the end of several reaction stirred tank units connected in series is connected to a second storage tank.

[0009] The advantages of this invention are as follows: The same equipment can be used for both dry and wet production of solid-phase humic acid-containing coal-water slurry additives. Furthermore, the equipment can be adjusted according to the characteristics of both dry and wet production, allowing for flexible switching between series and parallel connections to improve production efficiency. Specifically, this invention improves the production efficiency of solid-phase humic acid-containing coal-water slurry additives by connecting several reactor units in parallel, and by connecting several reactor units in series to achieve staged stirring. This not only solves the problems of low solubility and slow dissolution rate but also improves the production efficiency of liquid-phase humic acid-containing coal-water slurry additives.

[0010] As a further preferred embodiment of this technical solution, the bottom of the reaction stirred tank unit is provided with a solid material outlet and a liquid material outlet, and the top of the reaction stirred tank unit is provided with a material inlet adapted to the feeding device; the solid material outlets of the plurality of reaction stirred tank units are respectively connected to the first storage tank.

[0011] As a further preferred embodiment of this technical solution, the liquid phase outlet of the upper-level stirred tank unit among the plurality of stirred tank units is connected to the series liquid phase inlet of the adjacent lower-level stirred tank unit, and the liquid phase outlet of the end stirred tank unit is connected to the second storage tank.

[0012] As a further preferred embodiment of this technical solution, the top height of the adjacent lower-level reaction stirred tank unit is less than the bottom height of the adjacent upper-level reaction stirred tank unit.

[0013] As a further preferred embodiment of this technical solution, a non-solid phase inlet is provided on one side of the top of the upper reaction stirring vessel. A tee is provided on the non-solid phase inlet. The second end of the tee is connected to the compressed air pipeline through a first regulating valve, and the third end of the tee is connected to the demineralized water pipeline through a second regulating valve.

[0014] As a further preferred embodiment of this technical solution, the adjacent lower-level reaction stirring vessel is provided with a compressed air inlet, which is connected to the compressed air pipeline network through a third regulating valve.

[0015] As a further preferred embodiment of this technical solution, the reaction stirring vessel is provided with a jacket on the outside, with a steam inlet on one side of the lower part of the jacket and a steam outlet on the upper part of the other side of the jacket.

[0016] As a further preferred embodiment of this technical solution, the bottom of the reaction stirring vessel is provided with a support, and a weight sensor is provided between the reaction stirring vessel and the support.

[0017] As a further preferred embodiment of this technical solution, a stirring motor is provided at the top center of the reaction stirring vessel unit, and the main shaft of the stirring motor extends into the reaction stirring vessel unit through a stirring shaft. At least three layers of stirring blades are fitted on the outer circumference of the stirring shaft inside the reaction stirring vessel unit.

[0018] As a further preferred embodiment of this technical solution, the surface of the reaction stirred tank unit is provided with a viewing window for observing the internal condition of the reaction stirred tank unit.

[0019] An apparatus for producing humic acid-containing coal-water slurry additives, manufactured according to the above scheme, comprises several individual stirred reaction vessels. These vessels are connected in series for producing liquid-phase humic acid-containing coal-water slurry additives, and connected in parallel for producing solid-phase humic acid-containing coal-water slurry additives. This method allows for selection of the appropriate formulation of humic acid-containing coal-water slurry additives based on actual operating conditions and solves the problem of low production efficiency. The preferred solid-phase and liquid-phase humic acid-containing coal-water slurry additives in this invention enter their respective storage tanks by gravity, exhibiting energy-saving and consumption-reducing characteristics. The invention incorporates a weight sensor to effectively monitor the weight of materials within the corresponding reaction vessel, enabling precise mixing and ensuring product quality. By installing a jacket and a stirring motor, the dissolution rate of the liquid-phase humic acid-containing coal-water slurry additive can be increased. Furthermore, the invention includes a non-solid phase inlet, which allows compressed air to be introduced during the production of the solid-phase humic acid-containing coal-water slurry additive, purging the interior of the reaction vessel and improving the recovery efficiency of the additive. When the inlet is used to produce the liquid-phase humic acid-containing coal-water slurry additive, demineralized water is introduced to ensure normal production of the liquid-phase humic acid-containing coal-water slurry additive. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the upper reaction stirring vessel of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the adjacent lower layer reaction stirred tank unit of the present invention.

[0023] In the diagram: 1. Reactor unit; 2. First storage tank; 3. Second storage tank; 4. Feeding device; 5. Solid material outlet; 6. Liquid material outlet; 7. Material inlet; 8. Non-solid phase inlet; 9. First regulating valve; 10. Compressed air pipeline; 11. Second regulating valve; 12. Demineralized water pipeline; 13. Jacket; 14. Steam inlet; 15. Steam outlet; 16. Support; 17. Weight sensor; 18. Stirring motor; 19. Stirring shaft; 20. Stirring blades; 21. Viewing window; 22. Series liquid phase inlet; 23. Compressed air inlet; 24. Third regulating valve. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Reference Figure 1 As shown, an apparatus for producing humic acid-containing coal-water slurry additives is characterized by comprising several reaction stirred tank units 1 for producing solid-phase and liquid-phase humic acid-containing coal-water slurry additives, a first storage tank 2 for storing solid-phase humic acid-containing coal-water slurry additives, and a second storage tank 3 for storing liquid-phase humic acid-containing coal-water slurry additives; the solid material outlets 5 of the several reaction stirred tank units 1 are respectively connected to the first storage tank 2; the liquid phase outlets 6 at the ends of the several reaction stirred tank units 1 connected in series are connected to the second storage tank 3. The key point of this invention is that by using the same equipment to produce different dosage forms according to actual needs, and by utilizing the additive characteristics of different agents during the production process of each dosage form, the production efficiency can be improved. This invention uses several stirred tank reactors 1 to produce humic acid-containing coal-water slurry additives. In actual production, different production routes can be selected according to the required dosage form. When it is necessary to produce solid-phase humic acid-containing coal-water slurry additives, several stirred tank reactors 1 can be connected in parallel to improve production efficiency. When it is necessary to produce liquid-phase humic acid-containing coal-water slurry additives, several stirred tank reactors 1 can be connected in series to solve the defects of low solubility, slow dissolution rate, and low production efficiency of humic acid additives in water.

[0026] Furthermore, referring to Figure 1As shown, the bottom of the reaction stirred tank unit 1 is provided with a solid material outlet 5 and a liquid material outlet 6, and the top of the reaction stirred tank unit 1 is provided with a material inlet 7 adapted to the feeding device 4; the solid material outlets 5 of the plurality of reaction stirred tank units 1 are respectively connected to the first storage tank 2. When producing solid-phase coal-water slurry additive containing humic acid, a parallel production method is adopted to mix the materials in different reaction stirred tank units 1 to improve production efficiency. The feeding device 4 described in this invention can be a raw material elevator, a crane, or other conventional feeding device. When the feeding device 4 is a crane, there can be one crane. That is, when producing solid-phase coal-water slurry additive containing humic acid, the same crane feeds to several reaction stirred tank units 1. However, when producing liquid-phase coal-water slurry additive containing humic acid, the crane feeds to the first reaction stirred tank unit 1. Alternatively, a one-to-one correspondence can be adopted between several reaction stirred tank units 1 and multiple feeding devices 4. When a one-to-one correspondence is adopted, multiple feeding devices 4 simultaneously feed to the corresponding reaction stirred tank units 1 when producing solid-phase coal-water slurry additive containing humic acid. When producing liquid-phase coal-water slurry additive containing humic acid, the feeding device 4 corresponding to the first reaction stirred tank unit 1 performs the feeding operation.

[0027] Furthermore, referring to Figure 1 , 2 As shown in Figure 3, the liquid phase outlet 6 of the upper-layer stirred tank unit 1 is connected to the series liquid phase inlet 22 of the adjacent lower-layer stirred tank unit 1, and the liquid phase outlet 6 of the end stirred tank unit 1 is connected to the second storage tank 3. When producing liquid phase containing humic acid coal-water slurry additive, a series production method is adopted, so that the material enters each stirred tank unit 1 in stages for mixing and stirring. This overcomes the defects of slow dissolution rate and low dissolution rate of humic acid additive while improving production efficiency.

[0028] Furthermore, referring to Figure 1 As shown, the top height of the adjacent lower-level stirred tank unit 1 is less than the bottom height of the adjacent upper-level stirred tank unit 1. This arrangement allows the liquid phase to enter the corresponding stirred tank unit 1 by gravity during the production of humic acid-containing coal-water slurry additives, thus achieving energy saving and consumption reduction.

[0029] Furthermore, referring to Figure 1 , 2As shown, a non-solid inlet 8 is provided on one side of the top of the upper reaction stirring vessel unit 1. A tee is provided on the non-solid inlet 8. The second end of the tee is connected to the compressed air pipeline 10 through the first regulating valve 9, and the third end of the tee is connected to the demineralized water pipeline 12 through the second regulating valve 11. This invention utilizes the characteristic that water is required when producing liquid-phase coal-water slurry additives containing humic acid. A tee is provided at the inlet of the non-solid inlet 8 to provide demineralized water for the production of liquid-phase coal-water slurry additives containing humic acid, and to provide compressed air for the production of solid-phase coal-water slurry additives containing humic acid, for purging the uniformly mixed material to prevent some solid-phase coal-water slurry additives from being in a blind zone and unable to be recovered to the first storage tank 2.

[0030] Furthermore, referring to Figure 1 , 3 As shown, the adjacent lower-level reaction stirred tank unit 1 is equipped with a compressed air inlet 23, which is connected to the compressed air pipeline 10 via a third regulating valve 24. During the production process, when the wet process is in operation, there is no need to add demineralized water. Therefore, the adjacent lower-level reaction stirred tank unit 1 is equipped with a compressed air inlet 23 to achieve the purpose of purging the solid phase coal-water slurry containing humic acid after production.

[0031] Furthermore, referring to Figure 1 , 2 As shown in Figure 3, the reaction stirred tank unit 1 is provided with a jacket 13 on the outside. A steam inlet 14 is provided on one side of the lower part of the jacket 13, and a steam outlet 15 is provided on the upper part of the other side of the jacket 13. The present invention can heat the material in the reaction stirred tank unit 1 by setting the jacket 13, especially in the production of liquid phase coal-water slurry additive containing humic acid, which can accelerate the dissolution.

[0032] Furthermore, referring to Figure 1 , 2 As shown in Figure 3, a support 16 is provided at the bottom of the reaction stirred tank unit 1, and a weight sensor 17 is provided between the reaction stirred tank unit 1 and the support 16. This invention, by setting the weight sensor 17, can detect the material entering the reaction stirred tank unit 1, thereby effectively monitoring the weight of the material in the corresponding reaction stirred tank unit, achieving precise mixing, and ensuring product quality.

[0033] Furthermore, referring to Figure 1 , 2As shown in Figure 3, a stirring motor 18 is installed at the top center of the reaction vessel unit 1. The main shaft of the stirring motor 18 extends into the reaction vessel unit 1 through a stirring shaft 19. At least three layers of stirring blades 20 are fitted on the outer circumference of the stirring shaft 19 inside the reaction vessel unit 1. By setting the stirring motor 18 to drive the stirring blades 20 to rotate, the mixing efficiency of the materials can be improved, and the purpose of rapid mixing can be achieved.

[0034] Furthermore, referring to Figure 1 , 2 As shown in Figures 1 and 3, the surface of the reaction stirring vessel unit 1 is provided with a viewing window 21 for observing the internal conditions of the reaction stirring vessel unit.

[0035] The working principle of this invention is as follows: When it is necessary to produce solid-phase coal-water slurry additive containing humic acid according to actual working conditions, a dry mixing process is adopted, and several reaction stirring tank units 1 are used in parallel; the feeding device 4 feeds materials into several reaction stirring tank units 1 according to a certain proportion. The feeding process is measured by the weight sensor 17 to achieve accurate feeding; the stirring motor 18 is started to drive the stirring blades 20 to rotate; after mixing for a certain period of time, when the materials are mixed evenly, the materials enter the first storage tank 2 through the solid material outlet 5 by their own gravity, and wait for external sale; in the above process, it can be achieved through... Viewpoint 21 allows observation of material mixing; compressed air can be injected into the reaction vessel unit 1 via compressed air pipeline 10 to purge the reaction vessel unit 1 clean, ensuring effective material recovery; when producing liquid-phase humic acid-containing coal-water slurry additives, a wet process is used, with several reaction vessel units 1 connected in series; material is fed into the first reaction vessel unit 1 at a certain ratio via feeding device 4, and the feeding process is measured by weight sensor 17 to achieve precise feeding; the demineralized water pipeline 12 provides demineralized water flow... Steam is fed into the upper reactor unit 1 through the non-solid inlet 8, and further heated by steam entering the jacket 13 through the steam inlet 14. The heated steam is then discharged through the steam outlet 15 to other processes. At the same time, the stirring motor 18 is started, driving the stirring blades 20 to rotate. After mixing for a certain period of time, once the material is uniformly mixed, it enters the adjacent lower reactor unit 1 through the liquid phase outlet 6 and the series liquid phase inlet 22 in the adjacent lower reactor unit 1 by its own gravity, where it is repeatedly heated. The mixture is stirred until it enters the bottom-level reaction vessel 1. This process extends the material residence time and improves the dissolution rate and solubility of humic acid through steam heating and stirring, thereby increasing production efficiency. After the production process is completed, the liquid phase discharge port 6 of the bottom-level reaction vessel 1 can be used to enter the second storage tank 3. In subsequent processes, the liquid phase containing humic acid coal-water slurry additive in the second storage tank 3 can be directly sent to the coal-water slurry section for direct use, sold externally, or transported to the finished product tank in liquid form or prepared into powder after spray drying for later use.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for producing humic acid-containing coal-water slurry additives, characterized in that: The apparatus comprises several reaction stirred tank units (1) for producing solid-phase humic acid-containing coal-water slurry additives and liquid-phase humic acid-containing coal-water slurry additives. And a first storage tank (2) for storing solid phase coal-water slurry additives containing humic acid and a second storage tank (3) for storing liquid phase coal-water slurry additives containing humic acid. The solid material outlets (5) of several reaction stirred tank units (1) are respectively connected to the first storage tank (2); The liquid phase outlet (6) at the end of several reaction stirred tank units (1) connected in series is connected to the second storage tank (3); The bottom of the reaction stirred tank unit (1) is provided with a solid material outlet (5) and a liquid material outlet (6), and the top of the reaction stirred tank unit (1) is provided with a material inlet (7) that is compatible with the feeding device (4). The solid material outlets (5) of the plurality of reaction stirred tank units (1) are respectively connected to the first storage tank (2); The liquid phase outlet (6) of the upper layer of the several reaction stirred tank units (1) is connected to the series liquid phase inlet (22) of the adjacent lower layer of reaction stirred tank units (1), and the liquid phase outlet (6) of the end reaction stirred tank unit (1) is connected to the second storage tank (3).

2. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: The top height of the adjacent lower-level stirred tank unit (1) is less than the bottom height of the adjacent upper-level stirred tank unit (1).

3. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: The upper reaction stirring vessel unit (1) is provided with a non-solid inlet (8) on one side of the top. The non-solid inlet (8) is provided with a three-way valve. The second end of the three-way valve is connected to the compressed air pipeline (10) through the first regulating valve (9), and the third end of the three-way valve is connected to the demineralized water pipeline (12) through the second regulating valve (11).

4. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: The adjacent lower-level reaction stirring vessel unit (1) is provided with a compressed air inlet (23), and the compressed air inlet (23) is connected to the compressed air pipeline (10) through a third regulating valve (24).

5. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: The reaction stirring vessel unit (1) is provided with a jacket (13) on the outside. A steam inlet (14) is provided on one side of the lower part of the jacket (13), and a steam outlet (15) is provided on the upper part of the other side of the jacket (13).

6. An apparatus for producing humic acid-containing coal-water slurry additives according to any one of claims 1-5, characterized in that: The bottom of the reaction stirring vessel unit (1) is provided with a support (16), and a weight sensor (17) is provided between the reaction stirring vessel unit (1) and the support (16).

7. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: A stirring motor (18) is provided at the top center of the reaction stirring vessel unit (1). The main shaft of the stirring motor (18) extends into the reaction stirring vessel unit (1) through the stirring shaft (19). At least three layers of stirring blades (20) are fitted on the outer circumference of the stirring shaft (19) inside the reaction stirring vessel unit (1).

8. The apparatus for producing humic acid-containing coal-water slurry additives according to claim 1, characterized in that: The surface of the reaction stirred tank unit (1) is provided with a viewing window (21) for observing the internal condition of the reaction stirred tank unit.

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