CN113845949A - Nano hydrocarbon fuel preparation and dosing system and method - Google Patents
Nano hydrocarbon fuel preparation and dosing system and method Download PDFInfo
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- CN113845949A CN113845949A CN202111256224.5A CN202111256224A CN113845949A CN 113845949 A CN113845949 A CN 113845949A CN 202111256224 A CN202111256224 A CN 202111256224A CN 113845949 A CN113845949 A CN 113845949A
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/326—Coal-water suspensions
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Abstract
The invention discloses a nano hydrocarbon fuel preparation dosing system and a method thereof, wherein the nano hydrocarbon fuel preparation dosing system comprises the following steps: at least one additive dispensing device; the mixing device is used for receiving and mixing the additives from the additive dispensing devices; the additive homogenizing device is used for homogenizing and mixing various additives from the mixing device; the pre-distribution trough is used for receiving the homogenized additive and pulverized coal and softened water required by the preparation of the externally provided nano hydrocarbon fuel, and mixing the pulverized coal and the softened water; the nano processor is used for receiving the mixed material from the front distribution groove, performing nano processing treatment and preparing the nano hydrocarbon fuel; the cooling tank is used for receiving and cooling the prepared nano hydrocarbon fuel; and a dispersant dispensing device and a dispersant homogenizing device. The invention provides a dosing system suitable for preparing different types and different purposes of additives in the process of preparing nano hydrocarbon fuel, which can accurately control various types of additives and realize continuous and stable production process.
Description
Technical Field
The invention relates to the technical field of coal-based fluid fuels, in particular to a dosing system and a dosing method for a preparation process of a nano hydrocarbon fuel.
Background
The nano hydrocarbon fuel is a coal-based fluid fuel which is prepared by pre-processing, refining and nanocrystallizing high-aluminum raw coal produced by a quasi-energy group company, has a nano-scale particle size, has a high specific surface area and a high surface activity, is a novel, efficient and clean environment-friendly fuel, and has the characteristics of high combustion efficiency, low pollutant emission and the like.
The existing coal water slurry additive dosing device mixes the prepared additives of all components in a slurry mixing tank according to a certain proportion, directly mixes the additives with raw materials and then enters the next production procedure, and the continuous dosing process with reasonable proportion in a plurality of production procedures cannot be realized.
The reasonable addition of the additive is a key step in the preparation process of the nano hydrocarbon fuel, which directly influences the physical and chemical properties and subsequent storage, transportation and atomization properties of the nano hydrocarbon fuel, and the performance of the nano hydrocarbon fuel is influenced when the existing dosing device is used.
Disclosure of Invention
In order to make up for the defects in the prior art, the invention provides a nano hydrocarbon fuel preparation dosing system and a nano hydrocarbon fuel preparation dosing method.
In order to achieve the above object, the present invention adopts the following technical solutions:
the invention provides a nano hydrocarbon fuel preparation dosing system in a first aspect, which comprises:
at least one additive dispensing device;
the mixing device is respectively communicated with each additive dispensing device and is used for receiving and mixing the additives from each additive dispensing device;
the additive homogenizing device is communicated with the mixing device and is used for homogenizing and mixing various additives from the mixing device;
the pre-distribution trough is used for receiving the homogenized additive and pulverized coal and softened water required by the preparation of the externally provided nano hydrocarbon fuel, and mixing the pulverized coal and the softened water;
the nano processor is used for receiving the mixed material from the front distribution groove, performing nano processing treatment and preparing the nano hydrocarbon fuel;
the cooling tank is used for receiving and cooling the prepared nano hydrocarbon fuel;
a dispersant dispensing device for providing a dispersant;
a dispersant homogenizing device for receiving the cooled nano hydrocarbon fuel and the dispersant，And mixing to obtain the nano hydrocarbon fuel finished product.
According to the system, the additive dispensing device comprises a defoaming agent dispensing device, a grinding aid dispensing device and a wetting agent dispensing device, and additives with corresponding concentrations are dispensed according to needs. Preferably, the dispensing device can select a dosing tank with a stirrer, and the rotation speed is preferably 400-500 r/min.
Furthermore, when the additive is liquid, the stirrer adopts a straight blade type stirring paddle, so that the uniformity of the components of the medicament can be ensured, the structure is simple, and the cost is low.
Further, the additive dosing device is provided with a feed pump, preferably a metering pump, connected thereto. The addition amount of different additives can be accurately controlled through the metering pumps corresponding to the additives. Wherein, the addition proportion of the three additives is wetting agent: defoaming agent: the grinding aid is 1-2:1-2:3-5, preferably 1:1:3, and the whole addition amount is 0.5-1% (weight ratio) of the nano hydrocarbon fuel preparation amount.
The wetting agent reduces the surface tension or interfacial tension of the coal powder, so that water can spread on the surfaces of coal powder particles or penetrate into the surfaces of the coal powder particles, and the coal powder is more easily soaked by water.
During the nano processing of the coal powder, the particles are gradually thinned, the specific surface area is increased, the surface of the coal powder is charged due to bond breakage, the particles are mutually adsorbed and agglomerated, and the crushing efficiency is reduced. And a small amount of grinding aid is added, so that particle agglomeration can be prevented, the material fluidity is improved, the grinding efficiency is improved, and the nano hydrocarbon fuel production time is shortened.
Meanwhile, due to the use of the wetting agent and the grinding aid, a large amount of foam is generated in the preparation process of the nano hydrocarbon fuel, the subsequent production process is influenced, the production equipment is damaged, the foam generation can be inhibited by adding the defoaming agent, the generated foam is eliminated, and the production and preparation of the nano hydrocarbon fuel are facilitated.
The addition amount of the additive is closely related to the production cost of the nano hydrocarbon fuel, the cost of the nano hydrocarbon fuel is further increased due to excessive addition of the additive, and the optimal additive addition proportion and the optimal total using amount are determined through experiments and optimization exploration, so that the nano hydrocarbon fuel can be prepared at relatively low cost while the quality of the nano hydrocarbon fuel is ensured, and the optimal economical efficiency is achieved.
According to the system of the invention, the mixing device is preferably a mixing valve, which is connected to the feed pump for each additive. Preferably, the mixing valve is further provided with a valve regulator to control the opening and closing degree of the mixing valve.
According to the system of the invention, a stirrer is arranged in the additive homogenizing device, and a metering pump is connected to a discharge port of the additive homogenizing device, and the stirring speed is relatively high, preferably 8000-.
According to the system, the stirrer is arranged in the front distribution groove, the rotating speed is preferably 8000-10000r/min as that of a homogenizing device, comprehensive kinetic energy effects such as high frequency, strong circumferential tangential velocity, angular velocity and the like are formed through high-speed stable rotation of the stirrer, so that the additive and the preparation raw material are fully mixed, meanwhile, the discharge port of the stirrer is connected with an output screw pump, and the nano hydrocarbon fuel is conveyed in the preparation process through the screw pump.
According to the system, the nano processor is a nano mill, and is used for carrying out nano treatment on the additive and the preparation raw material, and grinding to obtain the nano-particle size hydrocarbon fuel. The average particle size of the raw coal (coal powder) for preparation is 150 microns after the pretreatment process, and the average particle size of the nano hydrocarbon fuel is between 400 and 800 nanometers.
According to the system, the stirrer is arranged in the cooling tank, the temperature of the newly prepared nano hydrocarbon fuel is 80-90 ℃, the nano hydrocarbon fuel is sent into the cooling tank through an output screw pump connected with a nano processor to be stirred, cooled and cooled, and the next production process is carried out after the temperature is reduced to below 50 ℃, for example, 40-50 ℃.
According to the system, a propeller type stirrer is arranged in the dispersing agent dispensing device, the rotating speed is preferably 400-500r/min, the volume circulation is taken as the main part, the circulation rate is high, the liquid flows radially during stirring, eddy current is not easy to form to cause the powdery medicament to form large particle groups of the water-in-water medicament, the full dissolution of the dispersing agent is facilitated, and the dispersing agent dispensing device is also connected with a feed pump.
According to the system, the stirrer is arranged in the dispersant homogenizing device, the rotating speed is preferably 8000-10000r/min, the nano hydrocarbon fuel is fully mixed with the dispersant in the dispersant homogenizing device, interaction occurs, the viscosity of the nano hydrocarbon fuel is reduced, the fluidity of the nano hydrocarbon fuel is improved, and meanwhile, the discharge hole of the nano hydrocarbon fuel is connected with the output screw pump. The addition amount of the dispersing agent is preferably 0.5-1% of the preparation amount of the nano hydrocarbon, and is adjusted according to the concentration and viscosity of the prepared nano hydrocarbon fuel to ensure that the viscosity is less than 1000 mPa.
The system further comprises a finished product storage device, and materials in the dispersing agent homogenizing device are input into the finished product storage device through a screw pump of the dispersing agent homogenizing device.
According to the system, the additive dispensing device can be provided with a signal acquisition device and a controller, wherein the signal acquisition device acquires signals including medicine box liquid level, medicine flow, temperature and the like, and the controller receives and adjusts the signals.
The second aspect of the present invention provides a preparation method of the dosing system for preparing nano hydrocarbon fuel, including the following steps:
1) respectively preparing a wetting agent, a defoaming agent and a grinding aid by an additive dispensing device;
2) adding the prepared wetting agent, the defoaming agent and the grinding aid into a mixing device according to a certain proportion, mixing, adding the mixture into an additive homogenizing device, and homogenizing and mixing under a stirring state;
3) adding the homogeneous mixed additive obtained in the step 2) and pulverized coal and softened water required by preparation of externally provided nano hydrocarbon fuel into a pre-preparation tank, and mixing;
4) adding the mixture obtained in the step 3) into a nano processor, and carrying out nano processing treatment to prepare nano hydrocarbon fuel;
5) adding the nano hydrocarbon fuel prepared in the step 4) into a cooling tank for cooling;
6) and (3) preparing a dispersing agent through a dispersing agent dispensing device, adding the dispersing agent and the nano hydrocarbon fuel cooled in the step 5) into a dispersing agent homogenizing device, and homogenizing and mixing under a stirring state to obtain a nano hydrocarbon fuel finished product.
According to the method, in the step 2), the adding proportion of the wetting agent, the defoaming agent and the grinding aid is 1:1:3, and the whole adding amount is 0.5-1% of the preparation amount of the nano hydrocarbon fuel.
According to the method, in the step 5), the nano hydrocarbon fuel is cooled to 40-50 ℃.
According to the method, the adding amount of the dispersing agent in the step 6) is 0.5-1% of the preparation amount of the nano hydrocarbon.
According to the method of the invention, in the step 2) and the step 6), the stirring speed for homogeneous mixing is 8000-.
According to the method, the average particle size of the raw material coal powder in the step 3) is 150 microns, and the average particle size of the prepared nano hydrocarbon fuel is 400-800 nanometers.
By adopting the technical scheme, the method has the following technical effects:
(1) by adopting the preparation dosing system, various additives required by the preparation of the nano hydrocarbon fuel can be added in different stages according to reasonable proportion in the production process, so that the production efficiency is increased, and the production cost is reduced; the adding conditions of different additives can be mastered in real time, and the adjustment can be carried out in time according to the actual production conditions, so that the product quality is ensured.
(2) The system can realize automatic control and remote control of the additive, and reduce the labor intensity of operators.
(3) The system of the invention can be provided with stirrers with different forms and rotating speeds according to different additives and the specific requirements of the production process. The form of the feed pump can also be selected to suit the nature of the material to be conveyed.
In conclusion, the invention provides a dosing system suitable for preparing different types and different purposes of additives in the process of preparing nano hydrocarbon fuel, so that the precise control of various types of additives is realized, and the continuous and stable production process is realized.
Drawings
FIG. 1 is a schematic structural diagram of a nano hydrocarbon fuel dispensing and dosing system according to an example of the present invention.
Some of the reference numbers in the figures are explained below: the system comprises an antifoaming agent dispensing device 1, a grinding aid dispensing device 2, a wetting agent dispensing device 3, additive feeding pumps 4, 5 and 6, a mixing device 7, an additive homogenizing device 8 and a feeding pump 9 thereof, a preposed preparation tank 10 and a feeding pump 11 thereof, a nano processor 12 and a feeding pump 13 thereof, a cooling tank 14 and a feeding pump 15 thereof, a dispersing agent dispensing device 16 and a feeding pump 17 thereof, a dispersing agent homogenizing device 18 and a feeding pump 19 thereof, and finished product storage devices 20 and 21.
Detailed Description
In order to better understand the technical solution of the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
In the description of the present invention, the terms "first" and "second" are used for convenience of description and distinction only, and are not intended to limit the number or order. Each device or element used in the system of the present invention may employ corresponding devices or elements that are conventional in the art, unless otherwise specified.
As shown in fig. 1, a dosing system for nano hydrocarbon fuel in an embodiment of the present invention includes:
at least one additive dosing device (1, 2, 3) and its respective feed pump (4, 5, 6);
the mixing device 7 is respectively communicated with each additive dispensing device (1, 2, 3) and is used for receiving and mixing the additives from each additive dispensing device;
the additive homogenizing device 8 and the feeding pump 9 thereof are communicated with the mixing device 7 and are used for homogenizing and mixing various additives from the mixing device;
the pre-distribution trough 10 and the feeding pump 11 thereof are used for receiving the homogenized additive and pulverized coal and softened water required by the preparation of nano hydrocarbon fuel provided from the outside and mixing the pulverized coal and the softened water;
the nano processor 12 and the feeding pump 13 thereof are used for receiving the mixed material from the pre-distribution tank 10, and performing nano processing treatment to prepare nano hydrocarbon fuel;
the cooling tank 14 and the feeding pump 15 thereof are used for receiving and cooling the prepared nano hydrocarbon fuel;
a dispersant dispensing device 16 and a feed pump 17 thereof for supplying a dispersant;
and the dispersant homogenizing device 18 and the feeding pump 19 thereof are used for receiving the cooled nano hydrocarbon fuel and the dispersant, and mixing the cooled nano hydrocarbon fuel and the dispersant to obtain a nano hydrocarbon fuel finished product.
Wherein the addition amount of each component is as follows:
m (coal powder) ═ M x omega (nano hydrocarbon fuel)/100-omega (H)2O)
M (additive) ═ M × ω (b)/ω (a)
M (demineralized water) ═ M-M (coal powder) -M (additive)
Wherein M is the preparation amount of the nano hydrocarbon fuel;
m (coal powder) is the mass of the needed coal powder;
omega (nano hydrocarbon fuel) is the concentration of nano hydrocarbon fuel,%;
ω(H2o) is the water content of the coal powder,%;
m (additive) is the mass of the additive needed for preparing the nano hydrocarbon fuel;
omega (a) is the content of the effective component of the additive,%;
omega (b) is the addition amount of different additives,%;
m (demineralized water) is the amount of demineralized water used.
For ease of understanding, with reference to fig. 1, the following example illustrates a specific structural arrangement of the system of the present invention, and it should not be understood that the technical solution of the present invention is limited thereto:
preferably, the additive dosing devices comprise a defoamer dosing device 1, a grinding aid dosing device 2 and a wetting agent dosing device 3, wherein additives with corresponding concentrations are dispensed according to needs. Preferably, the dispensing device may select a dosing tank with an agitator.
When the additive is liquid, the stirrer adopts a straight blade type stirring paddle, so that the uniformity of the components of the medicament can be ensured, the structure is simple, and the cost is lower.
The supply pumps (4, 5, 6) of the additive dosing device are preferably metering pumps. The addition amount of different additives can be accurately controlled through the metering pumps corresponding to the additives.
The mixing device 7 is preferably a mixing valve which is connected to the respective feed pump (4, 5, 6) for the respective additive. Preferably, the mixing valve is further provided with a valve adjuster (not shown, of conventional construction) for controlling the opening and closing degree of the mixing valve.
The additive homogenizing device 8 is a homogenizing tank provided with a stirrer inside, and a feeding pump 9 connected with a discharge port of the additive homogenizing device is preferably a metering pump.
The stirrer is arranged in the front distribution groove 10, comprehensive kinetic energy effects such as high-frequency and strong circumferential tangential velocity and angular velocity are formed through high-speed and stable rotation of the stirrer, so that the additive and the preparation raw materials are fully mixed, meanwhile, a feeding pump 11 connected with a discharge port of the stirrer is preferably a screw pump, and the nano hydrocarbon fuel is conveyed in the preparation process through the screw pump.
The nano processor 12 is a nano mill, and is used for nano processing the additive and the preparation raw material and grinding the additive and the preparation raw material to obtain the hydrocarbon fuel with the nano particle size.
A stirrer is arranged in the cooling tank 14, and the newly prepared nano hydrocarbon fuel is sent into the cooling tank 14 through a metering pump 13 connected with the nano processor 12, preferably a screw pump, for cooling, and enters the next production process after the temperature is reduced to below 50 ℃.
Preferably, the dispersant dispensing device 16 is a dispensing tank with a propeller agitator inside, mainly for volumetric circulation, and has a high circulation rate, so that the liquid flows radially during stirring, and the vortex is not easy to form, so that the powdery medicament forms large particles of water-in-medicament, which is beneficial to fully dissolving the dispersant, and similarly, the feed pump 17, preferably a metering pump, is connected to the discharge port of the dispersant dispensing device.
The dispersant homogenizing device 18 is a homogenizing tank with a stirrer arranged inside, the nano hydrocarbon fuel is fully mixed with the dispersant in the homogenizing tank, interaction occurs, the viscosity of the nano hydrocarbon fuel is reduced, the fluidity of the nano hydrocarbon fuel is improved, and meanwhile, a feeding pump 19 connected with a discharge port of the nano hydrocarbon fuel is preferably a screw pump.
The system of the invention also comprises finished product storage devices 20 and 21, and the materials in the dispersing agent homogenizing device 18 are input into the finished product storage devices through screw pumps of the dispersing agent homogenizing device.
In another example, the additive dispensing apparatus may further include a signal acquisition device that acquires signals including a medicine tank liquid level, a medicine flow rate, a temperature, and the like, and a controller that receives and adjusts the signals. The controller can mainly have two functions, namely a process flow picture display function and a system control function. For the display of the process flow picture, the controller mainly displays the following contents, such as the liquid level of a medicine box, the flow rate of the medicine, the temperature, the switching state of a valve switch and the like, so that an operator can master the production dynamics in real time. In the aspect of operation function operation of the system, the automatic control and remote control of a motor, a water pump and a valve in the system can be realized, and the labor intensity of operators is reduced. The specific structure is conventional and will not be described further.
The preparation method of the nano hydrocarbon fuel preparation dosing system comprises the following steps:
1) respectively preparing a wetting agent, a defoaming agent and a grinding aid by additive dispensing devices (1, 2 and 3);
2) adding the prepared wetting agent, the defoaming agent and the grinding aid into a mixing device 7 according to a certain proportion, mixing, adding the mixture into an additive homogenizing device 8, and homogenizing and mixing under a stirring state;
3) adding the homogeneous mixed additive obtained in the step 2) and pulverized coal and softened water required by preparation of nano hydrocarbon fuel provided from the outside into a pre-distribution trough 10, and mixing;
4) adding the mixture obtained in the step 3) into a nano processor 12, and carrying out nano processing treatment to prepare nano hydrocarbon fuel;
5) adding the nano hydrocarbon fuel prepared in the step 4) into a cooling tank 14 for cooling;
6) and (3) a dispersing agent is prepared by a dispersing agent dispensing device 16, the dispersing agent and the nano hydrocarbon fuel cooled in the step 5) are added into a dispersing agent homogenizing device 18, and the nano hydrocarbon fuel is homogenized and mixed under a stirring state to obtain a nano hydrocarbon fuel finished product.
In the step 2), the adding proportion of the wetting agent, the defoaming agent and the grinding aid is 1:1:3, and the whole adding amount is 0.5-1% of the preparation amount of the nano hydrocarbon fuel, such as 0.5%, 0.8% and 1%.
In step 5), the nano hydrocarbon fuel is cooled to 40-50 ℃, for example, 45 ℃ and 40 ℃.
The adding amount of the dispersing agent in the step 6) is 0.5-1%, such as 0.5%, 0.8% and 1% of the preparation amount of the nano hydrocarbon.
In the steps 2) and 6), the stirring speed for homogeneous mixing is 8000-10000r/min, such as 8000r/min, 9000r/min and 10000 r/min.
The average particle size of the raw material coal powder in the step 3) is 150 microns, and the average particle size of the prepared nano hydrocarbon fuel is 400-800 nanometers, such as 400, 500, 600 and 800 nanometers.
For easy understanding, referring to fig. 1, the following example illustrates the application operation method flow of the system in the production process, and it should not be understood that the technical solution of the present invention is limited thereto:
the additive with corresponding concentration is prepared through a defoaming agent dosing device 1, a grinding aid dosing device 2 and a wetting agent dosing device 3 respectively according to the production requirements, the three medicaments are reasonably proportioned through regulating and controlling a feeding pump (4, 5 and 6), the three medicaments pass through a mixing device 7 and enter an additive homogenizing device 8 for sufficient homogeneous mixing, the mixed additive enters a preposed dosing tank 10 together with pulverized coal and softened water required by preparation of nano hydrocarbon fuel through a homogenizing device feeding pump 9, high-frequency and strong comprehensive kinetic energy effects such as circumferential tangential velocity and angular velocity are formed through high-speed and stable rotation of a rotor, the additive and preparation raw materials are sufficiently mixed, the mixed material is pumped to a nano processor 12 through a preposed dosing tank feeding pump 11, and nano processing is carried out to prepare the nano hydrocarbon fuel. As more heat is generated in the nanocrystallization process, the prepared nano hydrocarbon fuel has higher temperature which can reach 80-90 ℃ usually, and the subsequent dispersing agent is denatured and loses the original efficacy due to the overhigh temperature. Therefore, the newly prepared nano hydrocarbon fuel needs to be subjected to certain cooling treatment, the newly prepared nano hydrocarbon fuel is delivered into a cooling tank 14 through a nano machine output feeding pump 13 for cooling, and the next production process is carried out after the temperature is reduced to below 50 ℃. The dispersing agent adopts powder medicament, need prepare in advance, dispersing agent dispensing device 16 adopts the propulsion paddle type agitating unit, mainly use the volume circulation, the circulation rate is high, make liquid produce radial flow during the stirring, difficult formation vortex causes the big granule group of powdered medicament formation water drum medicine again, be favorable to fully dissolving of dispersing agent, the dispersing agent that is prepared passes through dispersing agent feed pump 17, add dispersing agent homogeneity device 18 according to reasonable addition, simultaneously, the nanometer hydrocarbon fuel that the cooling was accomplished passes through cooling tank feed pump 15 and adds dispersing agent homogeneity device 18, carry out intensive mixing with the dispersing agent, the interact takes place, reduce the viscosity of nanometer hydrocarbon fuel, improve its mobility. Finally, it is pumped by a homogenizer feed pump 19 into a product storage (20, 21).
The batching tank, the stirrer, the metering pump, the homogenizing tank, the nano mill and the like adopted by the invention can adopt the existing processing facilities, devices or elements with corresponding functions in the field, and the details are not repeated. Those skilled in the art will understand or know what is not described herein, and will not be described in detail.
It will be appreciated by those skilled in the art that modifications or adaptations to the invention may be made in light of the teachings of the present specification. Such modifications or adaptations are intended to be within the scope of the present invention as defined in the claims.
Claims (10)
1. A nano hydrocarbon fuel preparation dosing system is characterized in that: the method comprises the following steps:
at least one additive dispensing device;
the mixing device is respectively communicated with each additive dispensing device and is used for receiving and mixing the additives from each additive dispensing device;
the additive homogenizing device is communicated with the mixing device and is used for homogenizing and mixing various additives from the mixing device;
the pre-distribution trough is used for receiving the homogenized additive and pulverized coal and softened water required by the preparation of the externally provided nano hydrocarbon fuel, and mixing the pulverized coal and the softened water;
the nano processor is used for receiving the mixed material from the front distribution groove, performing nano processing treatment and preparing the nano hydrocarbon fuel;
the cooling tank is used for receiving and cooling the prepared nano hydrocarbon fuel;
a dispersant dispensing device for providing a dispersant;
and the dispersant homogenizing device is used for receiving the cooled nano hydrocarbon fuel and the dispersant and mixing the cooled nano hydrocarbon fuel and the dispersant to obtain a nano hydrocarbon fuel finished product.
2. The nano hydrocarbon fuel dispensing and dosing system according to claim 1, wherein: the additive dispensing device comprises a defoaming agent dispensing device, a grinding aid dispensing device and a wetting agent dispensing device.
3. The nano hydrocarbon fuel dispensing and dosing system according to claim 1 or 2, characterized in that: the additive dispensing device is a dosing tank with a stirrer, and when the additive is liquid, the stirrer adopts a straight blade type stirring paddle; and/or the additive dosing device is provided with a feed pump, preferably a metering pump, connected thereto.
4. The nano hydrocarbon fuel dispensing and dosing system according to any one of claims 1 to 3, wherein: the mixing device is a mixing valve, and the mixing valve is respectively connected with the feeding pumps of the additives; preferably, the mixing valve is further provided with a valve regulator to control the opening and closing degree of the mixing valve.
5. The nano hydrocarbon fuel dispensing and dosing system according to any one of claims 1 to 4, wherein: a stirrer is arranged in the additive homogenizing device, and a discharge port of the additive homogenizing device is connected with a metering pump; and/or a stirrer is arranged in the front distribution groove, and a discharge hole of the front distribution groove is connected with a screw pump.
6. The nano hydrocarbon fuel dispensing and dosing system according to any one of claims 1 to 5, wherein: the nano processor is a nano mill and is used for carrying out nano treatment on the additive and the preparation raw material to obtain the nano particle material.
7. The nano hydrocarbon fuel dispensing and dosing system according to any one of claims 1 to 6, wherein: the inside agitator that sets up of cooling bath, the nanometer hydrocarbon fuel of preparation is sent into the cooling bath through the screw pump that nanometer processor connects and is cooled down.
8. The nano hydrocarbon fuel dispensing and dosing system according to any one of claims 1 to 7, wherein: a propeller type stirrer is arranged in the dispersing agent dispensing device, and a discharge port of the dispersing agent dispensing device is also connected with a feeding pump; and/or, a stirrer is arranged in the dispersant homogenizing device, and a discharge port of the dispersant homogenizing device is connected with an output screw pump.
9. The method for preparing the nano hydrocarbon fuel dosing system according to any one of claims 1 to 8, wherein the method comprises the following steps: the method comprises the following steps:
1) respectively preparing a wetting agent, a defoaming agent and a grinding aid by an additive dispensing device;
2) adding the prepared wetting agent, the defoaming agent and the grinding aid into a mixing device according to a certain proportion, mixing, adding the mixture into an additive homogenizing device, and homogenizing and mixing under a stirring state;
3) adding the homogeneous mixed additive obtained in the step 2) and pulverized coal and softened water required by preparation of externally provided nano hydrocarbon fuel into a pre-preparation tank, and mixing;
4) adding the mixture obtained in the step 3) into a nano processor, and carrying out nano processing treatment to prepare nano hydrocarbon fuel;
5) adding the nano hydrocarbon fuel prepared in the step 4) into a cooling tank for cooling;
6) and (3) preparing a dispersing agent through a dispersing agent dispensing device, adding the dispersing agent and the nano hydrocarbon fuel cooled in the step 5) into a dispersing agent homogenizing device, and homogenizing and mixing under a stirring state to obtain a nano hydrocarbon fuel finished product.
10. The preparation method of the nano hydrocarbon fuel preparation dosing system according to claim 8, wherein: in the step 2), the addition ratio of the wetting agent, the defoaming agent and the grinding aid is 1-2:1-2:3-5, and the whole addition amount is 0.5-1% of the preparation amount of the nano hydrocarbon fuel; and/or, cooling the nano hydrocarbon fuel to 40-50 ℃ in the step 5), and/or adding the dispersant in the step 6) in an amount which is 0.5-1% of the preparation amount of the nano hydrocarbon; and/or the stirring speed for homogeneous mixing in the step 2) and the step 6) is 8000-10000 r/min; step 3) the average particle size of the raw material coal powder is 150 microns, and the average particle size of the prepared nano hydrocarbon fuel is 400-800 nanometers。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115584287A (en) * | 2022-09-23 | 2023-01-10 | 神华准能资源综合开发有限公司 | Naphthalene dispersant for preparing nano hydrocarbon fuel and application thereof |
| CN116265573A (en) * | 2022-06-30 | 2023-06-20 | 神华准能资源综合开发有限公司 | Grinding aid and nano hydrocarbon fuel nano crushing pre-process |
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| CN115584287B (en) * | 2022-09-23 | 2023-10-27 | 神华准能资源综合开发有限公司 | Naphthalene dispersant for preparing nano hydrocarbon fuel and application thereof |
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| CN113845949B (en) | 2023-04-18 |
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