Disclosure of Invention
The invention aims to provide an electromagnetic heating production process to solve the problems in the background technology. In order to achieve the above object, the present invention provides an electromagnetic heating production process, which comprises the following steps:
s1, screening plastic raw materials, crushing coarse-grained raw materials with the diameter larger than 1mm to obtain fine-grained raw materials with the diameter smaller than 1mm, and adding water into the fine-grained raw materials to stir to obtain homogeneous slurry;
s2, adding monoammonium phosphate with the pH value of 5 and potassium sulfate with the pH value of 6 into the slurry, adding neutral filler, and changing the pH value of the slurry to ensure that the mixed slurry has moderate viscosity and fluidity;
s3, putting the mixed slurry into a gun barrel with a spiral induction coil wound on the outer surface, wherein the induction coil is connected with an electromagnetic heater and is electrified to heat the mixed slurry in the gun barrel;
and S4, stirring the melted mixed slurry at a constant speed, driving the slurry to move in the gun barrel to form a vortex, fully mixing the solid raw materials and the liquid phase in the slurry, and bonding to form a briquette.
As a further improvement of the technical scheme, in the S1, the plastic raw material with the diameter larger than 1mm is subjected to roller compaction crushing by a four-roller crusher to form fine grain raw material.
As a further improvement of the technical solution, in S1, a ribbon-type stirrer is used for stirring, water is added to the raw material and placed in a stirring tank of the stirrer, and the stirrer rotates in the stirring tank to stir the liquid, so that the solid particles are uniformly dispersed in the liquid to form a homogeneous slurry.
As a further improvement of the present technical solution, in S2, the neutral filler is glass powder.
As a further improvement of the technical solution, in S3, the barrel is of a cylindrical structure, the interval between the induction coil and the surface of the barrel is 15mm, the ratio of the number of turns of the induction coil to the height of the barrel is 1 to 1, the electromagnetic heater is energized to generate a high-frequency high-voltage current which changes at a high speed and flows through the induction coil to generate an alternating magnetic field which changes at a high speed, when the barrel containing iron is located inside the barrel, the surface of the barrel cuts the alternating magnetic lines of force to generate an alternating current, i.e., a vortex, at the metal part of the surface of the barrel, the vortex makes carriers on the surface of the barrel move randomly at a high speed, and the carriers collide with each other and rub to generate heat energy to heat the slurry.
As a further improvement of the technical solution, in S3, the temperature of the mixed slurry in the gun barrel when melted is 145 ℃, and in S4, the temperature of the mixed slurry in the gun barrel when stirred and granulated is 95 ℃.
In a further improvement of the present invention, in S4, the linear velocity of the stirring blade tip during stirring of the slurry is 5 m/S.
As a further improvement of the technical scheme, in S4, a dust exhaust fan is used to draw out dense smoke to avoid dense smoke poisoning when the slurry is stirred and mixed.
As a further improvement of the technical scheme, in S4, a star discharger is used to take out plastic granules, and the star discharger has a high efficiency of separating granular materials.
Compared with the prior art, the invention has the beneficial effects that:
in the electromagnetic heating production process, after the heating device adopting an electromagnetic heating mode is used, the production cost of materials can be greatly reduced, energy conservation and emission reduction are realized, and the production efficiency and the process stability are improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Example 1
Referring to fig. 1, an object of the present embodiment is to provide an electromagnetic heating production process, which includes the following steps:
s1, screening plastic raw materials, crushing coarse-grained raw materials with the diameter larger than 1mm to obtain fine-grained raw materials with the diameter smaller than 1mm, and adding water into the fine-grained raw materials to stir to obtain homogeneous slurry;
s2, adding monoammonium phosphate with the pH value of 5 and potassium sulfate with the pH value of 6 into the slurry, adding neutral filler, and changing the pH value of the slurry to ensure that the mixed slurry has moderate viscosity and fluidity;
s3, putting the mixed slurry into a gun barrel with a spiral induction coil wound on the outer surface, wherein the induction coil is connected with an electromagnetic heater and is electrified to heat the mixed slurry in the gun barrel;
and S4, stirring the melted mixed slurry at a constant speed, driving the slurry to move in the gun barrel to form a vortex, fully mixing the solid raw materials and the liquid phase in the slurry, and bonding to form a briquette.
Further, in S1, a four-roller crusher is used for crushing plastic raw materials with the diameter larger than 1mm to form fine raw materials, the four-roller crusher utilizes four high-strength wear-resistant alloy grinding rollers, materials are crushed by high extrusion force and shearing force generated by relative rotation, the materials are subjected to the action of the extrusion force generated by the relative rotation of the upper two rollers after entering the V-shaped crushing cavity of the two uppermost rollers, the materials are firstly extruded and nibbled and ground, then enter the two middle rollers of the relative rotation, and finally enter the lower two rollers after being secondarily extruded and nibbled and ground by the extrusion force of the two middle rollers, and the materials are crushed into required granularity after being extruded, sheared and nibbled and ground for the third time by the lower two rollers again and are sent out by a conveying device.
Further, in S1, a ribbon blender is used for blending, the raw material is added with water and placed into a blending tank of the blender, the liquid is blended by the rotation of the blender in the blending tank, the solid particles are uniformly dispersed in the liquid to form a homogeneous slurry, the outer diameter of the ribbon blender is equal to the pitch of the ribbon, the ribbon blender is specially used for blending high viscosity liquid and pseudoplastic fluid, and the operation is usually carried out in a laminar flow state.
Further, in S2, the neutral filler is glass powder, and the glass powder is inorganic amorphous hard ultrafine particle powder with small particle size, good dispersibility, high transparency, and good anti-settling effect.
Furthermore, in S3, the barrel is of a cylindrical structure, the interval between the induction coil and the barrel surface is 15mm, the ratio of the number of turns of the induction coil to the height of the barrel is 1: 1, the electromagnetic heater is energized to generate a high-frequency high-voltage current which changes at a high speed and flows through the induction coil to generate an alternating magnetic field which changes at a high speed, when the barrel containing iron is located in the barrel, the barrel surface cuts the alternating magnetic lines of force to generate an alternating current, i.e., a vortex, which causes carriers on the barrel surface to move randomly at a high speed, and the carriers collide and rub with each other to generate heat energy to heat the slurry.
In S3, the temperature at which the mixed slurry in the barrel is melted is 145 degrees celsius, and in S4, the temperature at which the mixed slurry in the barrel is stirred and granulated is 95 degrees celsius.
Specifically, in S4, the linear velocity of the stirring blade tip is 5m/S during the stirring of the slurry, and the appropriate stirring strength can ensure uniform mixing of the solid raw material and the liquid phase in the mixed slurry and drive the mixed slurry to flow at a uniform velocity.
Further, in S4, a dust exhauster is used to draw out the dense smoke to avoid the poisoning of the dense smoke when the slurry is stirred and mixed.
Additionally, in S4, adopt the star tripper to take out plastic granules, the star tripper is higher to graininess material separation efficiency, is favorable to improving the speed of production of material.
Comparative example 1
A ceramic heating production process comprises the following steps:
s1, screening plastic raw materials, crushing coarse-grained raw materials with the diameter larger than 1mm to obtain fine-grained raw materials with the diameter smaller than 1mm, and adding water into the fine-grained raw materials to stir to obtain homogeneous slurry;
s2, adding monoammonium phosphate with the pH value of 5 and potassium sulfate with the pH value of 6 into the slurry, adding neutral filler, and changing the pH value of the slurry to ensure that the mixed slurry has moderate viscosity and fluidity;
s3, putting the mixed slurry into a gun barrel with a ceramic heater, and heating the mixed slurry by the ceramic heater;
and S4, stirring the melted mixed slurry at a constant speed, driving the slurry to move in the gun barrel to form a vortex, fully mixing the solid raw materials and the liquid phase in the slurry, and bonding to form a briquette.
Further, in S1, a four-roller crusher is used for crushing plastic raw materials with the diameter larger than 1mm to form fine raw materials, the four-roller crusher utilizes four high-strength wear-resistant alloy grinding rollers, materials are crushed by high extrusion force and shearing force generated by relative rotation, the materials are subjected to the action of the extrusion force generated by the relative rotation of the upper two rollers after entering the V-shaped crushing cavity of the two uppermost rollers, the materials are firstly extruded and nibbled and ground, then enter the two middle rollers of the relative rotation, and finally enter the lower two rollers after being secondarily extruded and nibbled and ground by the extrusion force of the two middle rollers, and the materials are crushed into required granularity after being extruded, sheared and nibbled and ground for the third time by the lower two rollers again and are sent out by a conveying device.
Further, in S1, a ribbon blender is used for blending, the raw material is added with water and placed in a blending tank of the blender, the blender is rotated in the blending tank to blend the liquid, the solid particles are uniformly dispersed in the liquid to form a homogeneous slurry, the outer diameter of the ribbon blender is equal to the pitch of the ribbon, the ribbon blender is specially used for blending high viscosity liquid and pseudoplastic fluid, and the operation is usually performed in a laminar flow state.
Further, in S2, the neutral filler is glass powder, and the glass powder is inorganic amorphous hard ultrafine particle powder with small particle size, good dispersibility, high transparency, and good anti-settling effect.
Further, in S3, the temperature of the mixed slurry in the barrel when melted is 145 ℃, and in S4, the temperature of the mixed slurry in the barrel when stirred and granulated is 95 ℃.
Specifically, in S4, the linear velocity of the stirring blade tip is 5m/S during the stirring of the slurry, and the appropriate stirring strength can ensure uniform mixing of the solid raw material and the liquid phase in the mixed slurry and drive the mixed slurry to flow at a uniform velocity.
Further, in S4, a dust exhauster is used to draw out the dense smoke to avoid the poisoning of the dense smoke when the slurry is stirred and mixed.
Additionally, in S4, adopt the star tripper to take out plastic granules, the star tripper is higher to graininess material separation efficiency, is favorable to improving the speed of production of material.
Experimental example 1
The electromagnetic heating production process reduces the material production cost, reduces the energy consumption and improves the stability of the production process, and in order to verify the related technical scheme, the inventor performs the following experiments:
comparing the production processes in the example 1 and the comparative example 1, wherein the group A adopts the electromagnetic heating production process in the example 1, the group B adopts the ceramic heating production process in the comparative example 1, the cost comparison required by 100 tons of materials continuously heated and produced before and after the modification of the same equipment is calculated according to the same formula, the cost comparison data is filled in a table 1, the host machine current intensity when the production materials are heated for 1.5 hours and the starting rotation speed is 1400 revolutions is detected, the current intensity data is filled in a table 2, the temperature fluctuation ranges of the two processes when the materials are continuously produced for 100 tons are detected, and the temperature fluctuation range data is filled in a table 3.
TABLE 1
|
Electric energy/degree
|
Yuan/ton
|
Example 1
|
371.620
|
274.99
|
Comparative example 1
|
418.91
|
310.00 |
TABLE 2
|
Range of host current intensity
|
Example 1
|
142-145Amp
|
Comparative example 1
|
168-173Amp |
TABLE 3
As can be seen from table 1, the production process provided in example 1 of the present invention has significantly lower power consumption and significantly lower material production cost compared to comparative example 1, and thus it can be shown that, the electromagnetic heating production process can greatly save the production cost of materials, and as can be seen from the table 2, the range of the current intensity of the host machine in the embodiment 1 of the invention is obviously lower than that in the comparative example 1, it can be considered that the current intensity of example 1 is relatively stable and is significantly superior to that of comparative example 1, and it can be seen from table 3 that the temperature fluctuation range of example 1 of the present invention at the time of continuous production of 100 tons is smaller than that of comparative example 1, namely, the electromagnetic heating production process provided in embodiment 1 improves production efficiency, reduces the power demand required for production of each ton of products, saves energy, reduces emission, meets the development requirements and cost control of countries and enterprises, and reduces unnecessary energy waste.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.