CN109908824B - Tempering method of efficient tempering device - Google Patents
Tempering method of efficient tempering device Download PDFInfo
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- CN109908824B CN109908824B CN201910306613.0A CN201910306613A CN109908824B CN 109908824 B CN109908824 B CN 109908824B CN 201910306613 A CN201910306613 A CN 201910306613A CN 109908824 B CN109908824 B CN 109908824B
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Abstract
The invention provides an efficient tempering device and a tempering method thereof. The hardening and tempering method comprises the following steps: the method comprises the steps of carrying out initial feeding on materials in a pre-regulated layer at a first feeding hole, starting a steam adding system in the pre-regulated layer, a quality-guaranteeing heat tracing system in the quality-guaranteeing layer and a quality-guaranteeing heat tracing system in the quality-guaranteeing layer, and controlling the first rotating shaft to rotate in a forward and reverse mode to enable the materials of the initial feeding to flow back and forth in a first barrel in the pre-regulated layer. The adoption of the tempering method can reduce the discharge of waste materials in the starting process, can quickly enter a normal production state, and simultaneously reduces the labor intensity.
Description
Technical Field
The invention relates to the technical field of grain and feed processing equipment, in particular to a high-efficiency conditioning device and a conditioning method thereof.
Background
Before pelletizing, the feed needs to be subjected to steam high-temperature conditioning treatment on materials, the conditioning treatment equipment is called a conditioning device, the materials are subjected to high-temperature sterilization by utilizing steam, anti-nutritional factors in the materials are eliminated, the curing degree is improved, and an excellent breeding effect is achieved. In the tempering process, the small particles of the material absorb moisture, the core is softened, and the subsequent granulation is easier. Temperature, moisture, time are three key indexes of measuring tempering effect, in order to realize good tempering effect, the tempering temperature is usually increased, and the tempering time is prolonged to realize the good tempering effect, but when the machine is just started for production, the temperature rise of materials is slow, the materials reach the position of a discharge hole when the temperature required by granulation is not reached in a tempering device, and the materials are treated as waste materials due to disqualification and are directly discharged from a bypass door of a granulator and do not enter the granulator for granulation. The waste materials generated in the starting process are usually dozens of kilograms to hundreds of kilograms, an independent process flow needs to be designed for conveying, storing and treating the waste materials, and workers need to convey the waste materials to a waste material treatment part, so that time and labor are wasted.
Disclosure of Invention
In view of the above situation, the present invention provides a method for tempering by an efficient tempering device, which can reduce the emission of waste materials during the startup process.
In order to achieve the aim, the invention discloses a method for tempering by using an efficient tempering device, which comprises the following steps:
setting the hardening and tempering temperature, the initial feeding amount, the normal feeding amount and the normal rotating speed of the first rotating shaft of the material;
the method comprises the steps of performing initial feeding on a first feeding hole in a pre-conditioned layer, wherein the initial feeding amount is 10% -30% of the normal positive feeding amount, starting a steam adding system, a conditioning heat tracing system and a quality guaranteeing heat tracing system in the pre-conditioned layer, and simultaneously starting and controlling the first rotating shaft to rotate in a positive rotation mode and a reverse rotation mode alternately to enable initially fed materials to flow back and forth in a first cylinder in the pre-conditioned layer, and providing steam for the first cylinder through the steam adding system to enable the materials and the steam to fully perform water and heat exchange;
monitoring the temperature of the material in the first cylinder through a first temperature sensor in a pre-tempering layer, controlling a first rotating shaft to rotate positively when the actual temperature of the material reaches the tempering temperature, wherein the forward rotation speed is 50-80% of the normal rotating speed, feeding the material into the first feeding hole according to the normal feeding amount, increasing the steam addition amount of the steam addition system, and simultaneously controlling a second rotating shaft and a third rotating shaft to rotate so that the material in the first cylinder is uniformly discharged through the second cylinder and the third cylinder in sequence;
the temperature of the materials in the second barrel is monitored through the second temperature sensor, when the temperature of the materials in the second barrel is lower than the material tempering temperature, the materials are heated through a heating layer in the quality-guaranteeing heat tracing system, so that the temperature of the materials in the second barrel meets the material tempering temperature requirement, and the rotating speed of the first rotating shaft is adjusted to be normal after the first rotating shaft rotates positively for 30-60 s.
The invention further improves the efficient hardening and tempering method, wherein a material level device is arranged in the second cylinder, a preset material height is preset in the material level device, and when the actual material height in the second cylinder is greater than the preset material height, the rotating speed of a second rotating shaft in the second cylinder is increased, so that the discharging speed of the material in the second cylinder is accelerated;
the pre-tempering layer comprises a first barrel body, a first feed inlet is formed at the first end of the first barrel body, a first discharge outlet is formed at the second end of the first barrel body, a steam adding system is further arranged at the first end of the first barrel body and used for conveying steam into the first barrel body, a tempering heat tracing system is arranged on the outer wall of the first barrel body and comprises a first heating layer wrapped on the outer wall of the first barrel body and a first heat preservation layer wrapped outside the first heating layer, a first temperature sensor used for detecting the temperature of materials is fixedly arranged in the first barrel body, a first rotating shaft is rotatably arranged in the first barrel body and is coaxially arranged with the first barrel body, the first rotating shaft sequentially comprises a feed section, an intermediate section and a discharge section from one end close to the first feed inlet, the feeding section comprises a plurality of feeding paddles arranged on the first rotating shaft, the plurality of feeding paddles are distributed on the first rotating shaft at intervals along a first spiral direction, the feeding paddles comprise two working faces and are used for conveying materials to the middle section and the discharging section when the first rotating shaft rotates forwards and reversely, the middle section comprises a plurality of first middle paddles arranged on the first rotating shaft, the plurality of first middle paddles are distributed on the first rotating shaft at intervals along a second spiral direction, the discharging section comprises a plurality of discharging paddles, the plurality of discharging paddles are distributed on the first rotating shaft at intervals along a third spiral direction, and the rotary direction of the second spiral direction is consistent with that of the third spiral direction;
the material-retaining layer comprises a second cylinder, a second feed inlet communicated with the first discharge outlet is formed at the second end of the second cylinder, a second discharge hole is formed at the first end of the second cylinder body, a quality-guaranteeing heat tracing system is arranged on the outer wall of the second cylinder body, the quality-guaranteeing heat tracing system comprises a second heating layer and a second heat-insulating layer, the second heating layer is wrapped on the outer wall of the second cylinder body, the second heat-insulating layer is wrapped on the outer side of the second heating layer, a second temperature sensor for detecting the temperature of the material is arranged in the second cylinder body, a second rotating shaft is rotatably arranged in the second cylinder body, the second rotating shaft and the second cylinder are coaxially arranged, a single-head helical blade and a double-head helical blade are sequentially arranged from the second end of the second rotating shaft to the first end of the second rotating shaft, the pitch of the single-head helical blade is gradually increased from the second end close to the second rotating shaft to the second end far away from the second rotating shaft;
the scattering and homogenizing layer comprises a third cylinder, a third feeding hole communicated with the second discharging hole is formed in the top of the cylinder body of the third cylinder, a third discharging hole is formed in the middle of the bottom of the cylinder body of the third cylinder, a third rotating shaft is coaxially and rotatably arranged in the third cylinder, and a spiral blade, a paddle or a combination of the spiral blade and the paddle are arranged on the third rotating shaft and used for conveying materials to the third discharging hole;
the pre-conditioning layer, the material-holding layer and the scattering and homogenizing layer are sequentially arranged from top to bottom.
The invention has the beneficial effects that: the material is quickly heated through the tempering heat tracing system and the steam adding system, and the time from starting to normal production is shortened; effectively avoid the production of production initial stage waste material, improve the utilization ratio of material, reduce workman's intensity of labour.
The method for tempering the high-efficiency tempering device is further improved in that the device further comprises a first material level device arranged at the second end of the second cylinder and a second material level device arranged at the first end of the second cylinder. The height of the material in the second cylinder is monitored in real time.
The method for quenching and tempering the high-efficiency quenching and tempering device is further improved in that the first end part of the second rotating shaft is also coaxially provided with a wall scraping blade. The end wall of the first end of the second cylinder is cleaned through the wall scraping blade, and material residue is reduced.
The method for quenching and tempering the high-efficiency quenching and tempering device is further improved in that two groups of first helical blades which are symmetrically distributed are arranged on the third rotating shaft in a left-right mode, and the helical directions of the two groups of first helical blades are opposite. When the third rotating shaft rotates, the materials at the two ends flow to the middle position and are discharged through the third discharge hole.
The method for hardening and tempering the high-efficiency hardening and tempering device is further improved in that a first end to a second end of a third rotating shaft sequentially comprises a first conveying section, a middle section and a second conveying section, the middle section comprises a plurality of second intermediate blades which are arranged on the third rotating shaft and aligned to a third discharge hole, the second intermediate blades are arranged at equal intervals along the circumferential direction of the third rotating shaft, the first conveying section comprises a plurality of first blades which are arranged on the third rotating shaft, the first blades are arranged at intervals along a fourth spiral direction, the arrangement direction of the first blades is vertical to the axial direction of the third rotating shaft, the second conveying section comprises a plurality of second blades which are arranged on the third rotating shaft, the second blades are arranged at intervals along a fifth spiral direction, and the spiral direction of the fourth spiral direction is opposite to the spiral direction of the fifth spiral direction, the first paddles and the second paddles are symmetrically arranged one by one, and the installation angle directions of each first paddle and the corresponding second paddle are opposite.
The method for hardening and tempering the high-efficiency hardening and tempering device is further improved in that the third rotating shaft is provided with two groups of second spiral blades which are symmetrically arranged in a left-right mode and a plurality of third blades which are arranged between the two groups of second spiral blades and aligned to the third discharge hole, the rotating directions of the two groups of second spiral blades are opposite, the plurality of third blades are arranged at equal intervals along the circumferential direction of the third rotating shaft, and the arrangement direction of the third blades is perpendicular to the axial direction of the third rotating shaft.
The method for quenching and tempering the high-efficiency quenching and tempering device is further improved in that the plurality of first temperature sensors are arranged at the bottom of the first cylinder body and are arranged at equal intervals along the axial direction parallel to the first rotating shaft, the plurality of second temperature sensors are arranged at the bottom of the second cylinder body and are arranged at equal intervals along the axial direction parallel to the second rotating shaft.
The method for tempering by the high-efficiency tempering device is further improved in that the device further comprises a first driving system for driving the first rotating shaft to rotate, a second driving system for driving the second rotating shaft to rotate and a third driving system for driving the third rotating shaft to rotate.
Drawings
FIG. 1 is a schematic structural diagram of an efficient conditioning device according to the present invention.
Fig. 2 is a schematic structural view of the first rotating shaft in the present invention.
Fig. 3 is a schematic view of the second cylinder structure in the present invention.
Fig. 4 is a schematic structural view of the second rotating shaft in the present invention.
FIG. 5 is a schematic view of the structure of the scattering and leveling layer of the present invention.
Fig. 6 is a schematic structural view of a third rotating shaft in the present invention.
Detailed Description
To facilitate an understanding of the present invention, the following description is made in conjunction with the accompanying drawings and examples.
Referring to fig. 1 to 6, the invention discloses a method for tempering by using an efficient tempering device, which comprises the following steps:
step 101: setting the hardening and tempering temperature, the initial feeding amount, the normal feeding amount and the normal rotating speed of the first rotating shaft 14 of the material;
step 102: carrying out initial feeding in a first feeding hole in the pre-conditioned layer 1, wherein the initial feeding amount is 10% -30% of the normal positive feeding amount, starting a steam adding system 12, a conditioning heat tracing system 13 and a quality guaranteeing heat tracing system 23 in the quality guaranteeing layer 2 in the pre-conditioned layer 1, and simultaneously starting and controlling a first rotating shaft 14 to rotate forwards and backwards alternately, so that the initially fed materials flow back and forth in a first cylinder 11 in the pre-conditioned layer 1, and providing steam to the first cylinder 11 through the steam adding system 12, so that the materials and the steam fully carry out water and heat exchange;
step 103: monitoring the temperature of the material in the first cylinder 11 through a first temperature sensor 15 in the pre-tempering layer 1, controlling the first rotating shaft 14 to rotate positively when the actual temperature of the material reaches the tempering temperature, wherein the forward rotation speed is 50-80% of the normal rotating speed, feeding the material into the first feeding hole according to the normal feeding amount, increasing the steam addition amount of the steam addition system 12, and simultaneously controlling the second rotating shaft 24 and the third rotating shaft 32 to rotate, so that the material in the first cylinder 11 is uniformly discharged through the second cylinder 21 and the third cylinder 31 in sequence;
the temperature of the material in the second cylinder 21 is monitored through the second temperature sensor 25, when the temperature of the material in the second cylinder 21 is lower than the material tempering temperature, the material is heated through the heating layer in the quality-guaranteeing heat tracing system 23, so that the temperature of the material in the second cylinder 21 meets the requirement of the material tempering temperature, and the rotating speed of the first rotating shaft 14 is adjusted to be normal after the first rotating shaft 14 rotates positively for 30-60 seconds.
In this embodiment, when the steam adding system 12 is turned on to provide steam into the first cylinder 11, the steam opening corresponds to the set actual feeding amount; the material entering the first cylinder 11 is fully mixed with steam under the action of the first rotating shaft 14 to carry out water and heat exchange; the first rotating shaft 14 rotates forwards and backwards alternately according to a set time (the time of the forward and reverse alternate operation is preset in the central controller), at the moment, the materials flow back and forth in the pre-regulated layer 1 but are not discharged to the quality guarantee layer 2, the materials stay in the first cylinder 11 for a long time and have enough exchange time with steam, the temperature is gradually increased, the first temperature sensor 15 detects the temperature of the materials in the pre-regulated layer 1 and is compared with the regulating temperature set by the system, when the temperature of the materials detected by the first temperature sensor 15 reaches a set value (regulating temperature), the first rotating shaft 14 starts to rotate forwards continuously and discharges the materials to the quality guarantee layer 2 at a low speed lower than the conventional speed, the materials entering the quality guarantee layer 2 are conveyed forwards slowly under the combined action of the single-head helical blade 241 and the double-head helical blade 242 of the second rotating shaft 24, the materials stay in the quality guarantee layer 2 for a long time, keep warm and homogenize, and (3) further curing and sterilizing, wherein the plurality of second temperature sensors 25 in the second barrel 21 detect the temperature of each section of material, perform real-time production analysis, and control the temperature through a central controller so as to adjust the operation parameters of the quality-guaranteeing heat tracing system 23, the second rotating shaft 24 and the like.
Further, a material level indicator is installed in the second cylinder 21, a preset material height is preset in the material level indicator, and when the actual material height in the second cylinder 21 is greater than the preset material height, the rotating speed of the second rotating shaft 24 in the second cylinder 21 is increased, so that the discharging speed of the material in the second cylinder 21 is increased. In this embodiment, the material level in the second cylinder 21 is monitored by the material level indicator, when the material level is higher than the actual height, the material level indicator sends a signal to the central controller, the central controller increases the rotation speed of the second rotating shaft 24, so that the material flow in the second cylinder 21 is accelerated, and the material accumulation in the second cylinder 21 is prevented from being too much and the machine is prevented from being blocked;
the invention discloses an efficient tempering device, which comprises a pre-tempering layer 1, a quality-guaranteeing layer 2 and a scattering and material-homogenizing layer 3; wherein: the pre-conditioning layer 1 comprises a first barrel 11, a first feed port is formed at a first end of the first barrel 11, a first discharge port is formed at a second end of the first barrel 11, a steam adding system 12 is further arranged at the first end of the first barrel 11 and used for conveying steam into the first barrel 11, a conditioning heat tracing system 13 is arranged on the outer wall of the first barrel 11, the conditioning heat tracing system 13 comprises a first heating layer wrapped on the outer wall of the first barrel 11 and a first heat preservation layer wrapped on the outer side of the first heating layer, a first temperature sensor 15 used for detecting material temperature is fixedly arranged in the first barrel 11, a first rotating shaft 14 is rotatably arranged in the first barrel 11, the first rotating shaft 14 and the first barrel 11 are coaxially arranged, the first rotating shaft 14 sequentially comprises a feed section, an intermediate section and a discharge section from one end close to the first feed port to the end far away from the first feed port, the feed section comprises a plurality of feed paddles 141 arranged on the first rotating shaft 14, the plurality of feeding paddles 141 are distributed on the first rotating shaft 14 at intervals along a first spiral direction, the feeding paddles 141 comprise two working faces and are used for conveying materials to the middle section and the discharging section when the first rotating shaft 14 rotates forwards and reversely, the middle section comprises a plurality of first middle paddles 142 arranged on the first rotating shaft 14, the plurality of first middle paddles 142 are distributed on the first rotating shaft 14 at intervals along a second spiral direction, the discharging section comprises a plurality of discharging paddles 143, the plurality of discharging paddles 143 are distributed on the first rotating shaft 14 at intervals along a third spiral direction, and the spiral direction of the second spiral direction is consistent with the spiral direction of the third spiral direction; the quality-keeping layer 2 comprises a second cylinder 21, a second feed port communicated with the first discharge port is formed at the second end of the second cylinder 21, a second discharge port is formed at the first end of the second cylinder 21, a quality-keeping heat tracing system 23 is arranged on the outer wall of the second cylinder 21, the quality-keeping heat tracing system 23 comprises a second heating layer wrapped on the outer wall of the second cylinder 21 and a second heat-insulating layer wrapped on the outer side of the second heating layer, a second temperature sensor 25 used for detecting the temperature of materials is installed in the second cylinder 21, a second rotating shaft 24 is rotatably installed in the second cylinder 21, the second rotating shaft 24 and the second cylinder 21 are coaxially arranged, a single-head helical blade 241 and a double-head helical blade 242 are sequentially arranged from the second end of the second rotating shaft 24 to the first end of the second rotating shaft 24, and the pitch of the single-head helical blade 241 is gradually increased from the second end close to the second end of the second rotating shaft 24 to the second end far away from the second rotating shaft 24; the scattering and homogenizing material layer 3 comprises a third cylinder 31, a third feeding hole communicated with the second discharging hole is formed in the top of the cylinder body of the third cylinder 31, a third discharging hole is formed in the middle of the bottom of the cylinder body of the third cylinder 31, a third rotating shaft 32 is coaxially and rotatably installed in the third cylinder 31, and a spiral blade, a paddle or a combination of the spiral blade and the paddle is arranged on the third rotating shaft 32 and used for conveying materials to the third discharging hole; the pre-conditioning layer 1, the quality guaranteeing layer 2 and the scattering and material homogenizing layer 3 are sequentially arranged from top to bottom.
In the embodiment, (1) the steam adding system 12 and the first feeding hole are arranged at the same end of the first cylinder 11, so that the first time of the material is contacted with steam, water and heat exchange is completed, and meanwhile, the time for heating the material to the tempering temperature can be further shortened by combining the tempering heat tracing system 13; (2) the feeding paddle 141 comprises two working faces, the feeding paddle is used for conveying materials forwards when the first rotating shaft 14 rotates forwards or reversely, the first middle paddle 142 and the discharging paddle 143 are used for conveying materials forwards (namely pointing to the direction of the first discharging port) when the first rotating shaft 14 rotates forwards, and the first middle paddle 142 and the discharging paddle 143 are used for conveying materials backwards (namely pointing to the direction of the first feeding port) when the first rotating shaft 14 rotates reversely, so that the initial feeding materials flow back and forth between the middle section and the discharging section when the first rotating shaft 14 rotates forwards and reversely alternately; (3) the first temperature sensor 15 and the second temperature sensor 25 are used for respectively monitoring the temperature of the material, and when the monitored temperature is lower than the tempering temperature, the temperature of the material is respectively regulated through the tempering heat tracing system 13 and the quality-guaranteeing heat tracing system 23, so that the temperature of the material is ensured to meet the tempering temperature requirement; (4) the uniformity of the material at the second discharge hole can be ensured by arranging the single-head helical blade 241 and the double-head helical blade 242; (5) the pre-conditioning layer 1, the quality guaranteeing layer 2 and the scattering material homogenizing layer 3 are sequentially arranged from top to bottom, so that the installation area can be reduced, and the occupied space is saved. Specifically, (1) the bottom of the first cylinder 11 is provided with a plurality of first temperature sensors 15, the plurality of first temperature sensors 15 are arranged at equal intervals along the axial direction parallel to the first rotating shaft 14, the bottom of the second cylinder 21 is provided with a plurality of second temperature sensors 25, and the plurality of second temperature sensors 25 are arranged at equal intervals along the axial direction parallel to the second rotating shaft 24; (2) the device also comprises a first driving system for driving the first rotating shaft 14 to rotate, a second driving system for driving the second rotating shaft 24 to rotate and a third driving system for driving the third rotating shaft 32 to rotate; (3) the cross section of the feeding paddle 141 is triangular; (4) a temperature sensor 16 is installed in the first discharge hole and used for detecting the temperature of the material entering the second cylinder.
Further, a first level indicator 26 mounted at the second end of the second cylinder 21 and a second level indicator 27 mounted at the first end of the second cylinder 21 are also included. In this embodiment, when the heights of the materials detected by the first material level indicator 26 and the second material level indicator 27 are greater than the predetermined height, the rotating speed of the second rotating shaft 24 is increased, so as to accelerate the flow of the materials in the second cylinder 21 and prevent the second cylinder 21 from being blocked. Specifically, the first level indicator 26 is installed at any level indicator interface 211 at the second inlet of the second cylinder 21, and the second level indicator 27 is installed at any level indicator interface 212 at the second outlet of the second cylinder 21.
Further, a wall scraping vane 243 is coaxially installed at the first end of the second rotating shaft 24. In this embodiment, through setting up and scraping wall blade 243, can reduce the residue of the first end wall position material of second barrel 21, reduce the later stage and wash the degree of difficulty, guarantee safety, the health nature in the material production process then.
In the present invention, the first drive system includes a first motor 17 and a first speed reduction mechanism coupled to the first motor 17 and the first shaft 14, the second drive system includes a second motor 22 and a second speed reduction mechanism coupled to the second motor 22 and the second shaft 24, and the third drive system includes a third motor 33 and a third speed reduction mechanism coupled to the third motor 33 and the third shaft 32.
The invention also comprises a central controller, wherein the central controller is preset with the preset opening degree, the tempering temperature, the initial feeding amount, the normal feeding amount and the preset material height of the steam adding system 12; the central controller is electrically connected with the steam adding system 12 and is used for controlling the opening degree of the steam adding system 12; the central controller is electrically coupled to the first motor 17, the second motor 22 and the third motor 33, and is used for controlling the rotating speeds of the first rotating shaft 14, the second rotating shaft 24 and the third rotating shaft 32 respectively; the central controller is electrically connected with the first level indicator 26 and the second level indicator 27, and controls the second motor 22 to increase the rotating speed to accelerate the material flow when the detected material height is greater than the preset height; the central controller is electrically connected with the first temperature sensor 15 and the second temperature sensor 25, when the temperature detected by any one of the first temperature sensors 15 is equal to the tempering temperature, the central controller controls the first rotating shaft 14 to continuously rotate forwards (in the invention, when the first rotating shaft 14 rotates forwards, the first middle paddle 142 and the discharging paddle 143 convey materials forwards), and when the material temperature detected by the second temperature sensor 25 is lower than the tempering temperature, the quality-guaranteeing heat tracing system is controlled by the central controller to heat.
The third shaft 32 of the present invention is embodied as follows:
the first embodiment is as follows:
the third rotating shaft 32 is provided with two sets of first helical blades symmetrically arranged left and right, and the helical directions of the two sets of first helical blades are opposite. In this embodiment, two sets of first helical blades are symmetrically arranged, so that the material entering the third cylinder 31 from the third feeding port flows to the middle position of the third cylinder 31 through the first helical blades, and is finally discharged from the third discharging port.
Example two:
as shown in fig. 5, the third rotating shaft 32 is provided with two sets of second spiral blades 331 symmetrically arranged in left-right direction and a plurality of third blades 332 arranged between the two sets of second spiral blades 331 and aligned with the third discharge hole, the rotation directions of the two sets of second spiral blades 331 are opposite, the plurality of third blades 332 are arranged at equal intervals along the circumferential direction of the third rotating shaft 32, and the arrangement direction of the third blades 332 is perpendicular to the axial direction of the third rotating shaft 32. In this embodiment, the spiral directions of the second spiral blades 331 on the left and right sides are opposite to each other, so that the material on both sides can flow to the third blades 332, and the material can be uniformly discharged from the third discharge hole by arranging the plurality of third blades 332 at equal intervals along the circumferential direction of the third rotating shaft 32 and arranging the third blades 332 in a direction perpendicular to the axial direction of the third rotating shaft 32.
Example three:
as shown in fig. 6, the first end to the second end of the third rotating shaft 32 sequentially includes a first conveying section, the middle section comprises a plurality of second middle paddles 323 arranged on a third rotating shaft 32 and aligned to a third discharge hole, the second middle paddles 323 are arranged at equal intervals along the circumferential direction of the third rotating shaft 32, the first conveying section comprises a plurality of first paddles 321 arranged on the third rotating shaft 32, the first paddles 321 are arranged at intervals along a fourth spiral direction, the arrangement direction of the first paddles 321 is perpendicular to the axial direction of the third rotating shaft 32, the second conveying section comprises a plurality of second paddles 322 arranged on the third rotating shaft 32, the second paddles 322 are arranged at intervals along a fifth spiral direction, the spiral direction of the fourth spiral direction is opposite to the spiral direction of the fifth spiral direction, the first paddles 321 and the second paddles 322 are symmetrically arranged one to one, and the installation angle direction between each first paddle 321 and the corresponding second paddle 322 is opposite. In the embodiment, (1) the second intermediate blades 323 are vertically arranged with the third rotating shaft 32, and the second intermediate blades 323 are arranged at equal intervals along the circumferential direction of the third rotating shaft 32, so that the materials can be uniformly discharged from the middle position after being scattered by the first conveying section and the second conveying end; (2) through the rotation direction of the fourth spiral direction and the rotation direction of the fifth spiral direction which are opposite and the installation angle direction between the first blade 321 and the corresponding second blade 322 which are opposite, the material can be ensured to flow to the middle section direction through the material of the first conveying section and the second conveying section, and finally the material is scattered through the second middle blade 323 and is uniformly output from the third discharge hole.
The method for tempering by the high-efficiency tempering device has the beneficial effects that:
1. the materials are heated rapidly under the combined action of the tempering heat tracing system and the steam adding system, the tempering temperature required by granulation is rapidly reached, and the materials can rapidly enter a normal production state after being started.
2. The conditioning device enters the continuous production mode process from the starting mode, the transition is stable, the discharging is uniform, the equipment has no impact and waste materials, the raw material utilization rate is high, the feed conditioning time is long, the curing effect is good, and the continuous production device is safe and sanitary.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the range covered by the technical contents disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Claims (6)
1. A method for tempering by using an efficient tempering device comprises the following steps: setting the hardening and tempering temperature, the initial feeding amount, the normal feeding amount and the normal rotating speed of the first rotating shaft of the material;
the method comprises the steps of performing initial feeding on a first feeding hole in a pre-conditioned layer, wherein the initial feeding amount is 10% -30% of the normal feeding amount, starting a steam adding system, a conditioning heat tracing system and a quality guaranteeing heat tracing system in the pre-conditioned layer, and simultaneously starting and controlling a first rotating shaft to rotate forwards and backwards alternately, so that initially-fed materials flow back and forth in a first cylinder in the pre-conditioned layer, and steam is provided for the first cylinder through the steam adding system, so that the materials and the steam fully perform water and heat exchange;
monitoring the temperature of the material in the first cylinder through a first temperature sensor in a pre-tempering layer, controlling a first rotating shaft to rotate positively when the actual temperature of the material reaches the tempering temperature, wherein the forward rotation speed is 50-80% of the normal rotating speed, feeding the material into the first feeding hole according to the normal feeding amount, increasing the steam addition amount of the steam addition system, and simultaneously controlling a second rotating shaft and a third rotating shaft to rotate so that the material in the first cylinder is uniformly discharged through the second cylinder and the third cylinder in sequence;
the temperature of the materials in the second cylinder is monitored through a second temperature sensor, when the temperature of the materials in the second cylinder is lower than the material hardening and tempering temperature, the materials are heated through a heating layer in a quality-guaranteeing heat tracing system, so that the temperature of the materials in the second cylinder meets the material hardening and tempering temperature requirement, and the rotating speed of the first rotating shaft is adjusted to be normal after the first rotating shaft rotates positively for 30-60 seconds;
a material level indicator is installed in the second cylinder, a preset material height is preset in the material level indicator, and when the actual material height in the second cylinder is larger than the preset material height, the rotating speed of a second rotating shaft in the second cylinder is increased, so that the discharging speed of the material in the second cylinder is accelerated;
the pre-tempering layer comprises a first barrel body, a first feed inlet is formed at the first end of the first barrel body, a first discharge outlet is formed at the second end of the first barrel body, a steam adding system is further arranged at the first end of the first barrel body and used for conveying steam into the first barrel body, a tempering heat tracing system is arranged on the outer wall of the first barrel body and comprises a first heating layer wrapped on the outer wall of the first barrel body and a first heat preservation layer wrapped outside the first heating layer, a first temperature sensor used for detecting the temperature of materials is fixedly arranged in the first barrel body, a first rotating shaft is rotatably arranged in the first barrel body and is coaxially arranged with the first barrel body, the first rotating shaft sequentially comprises a feed section, an intermediate section and a discharge section from one end close to the first feed inlet, the feeding section comprises a plurality of feeding paddles arranged on the first rotating shaft, the plurality of feeding paddles are distributed on the first rotating shaft at intervals along a first spiral direction, the feeding paddles comprise two working faces and are used for conveying materials to the middle section and the discharging section when the first rotating shaft rotates forwards and reversely, the middle section comprises a plurality of first middle paddles arranged on the first rotating shaft, the plurality of first middle paddles are distributed on the first rotating shaft at intervals along a second spiral direction, the discharging section comprises a plurality of discharging paddles, the plurality of discharging paddles are distributed on the first rotating shaft at intervals along a third spiral direction, and the rotary direction of the second spiral direction is consistent with that of the third spiral direction;
the material-retaining layer comprises a second cylinder, a second feed inlet communicated with the first discharge outlet is formed at the second end of the second cylinder, a second discharge hole is formed at the first end of the second cylinder body, a quality-guaranteeing heat tracing system is arranged on the outer wall of the second cylinder body, the quality-guaranteeing heat tracing system comprises a second heating layer and a second heat-insulating layer, the second heating layer is wrapped on the outer wall of the second cylinder body, the second heat-insulating layer is wrapped on the outer side of the second heating layer, a second temperature sensor for detecting the temperature of the material is arranged in the second cylinder body, a second rotating shaft is rotatably arranged in the second cylinder body, the second rotating shaft and the second cylinder are coaxially arranged, a single-head helical blade and a double-head helical blade are sequentially arranged from the second end of the second rotating shaft to the first end of the second rotating shaft, the pitch of the single-head helical blade is gradually increased from the second end close to the second rotating shaft to the second end far away from the second rotating shaft;
the scattering and homogenizing layer comprises a third cylinder, a third feeding hole communicated with the second discharging hole is formed in the top of the cylinder body of the third cylinder, a third discharging hole is formed in the middle of the bottom of the cylinder body of the third cylinder, a third rotating shaft is coaxially and rotatably arranged in the third cylinder, and a spiral blade, a paddle or a combination of the spiral blade and the paddle are arranged on the third rotating shaft and used for conveying materials to the third discharging hole;
the pre-conditioning layer, the material-retaining layer and the scattering and homogenizing layer are sequentially arranged from top to bottom;
the first material level indicator is arranged at the second end of the second cylinder body, and the second material level indicator is arranged at the first end of the second cylinder body;
the device also comprises a first driving system for driving the first rotating shaft to rotate, a second driving system for driving the second rotating shaft to rotate and a third driving system for driving the third rotating shaft to rotate.
2. The method for tempering by using the high-efficiency tempering device according to claim 1, wherein: and the end part of the first end of the second rotating shaft is also coaxially provided with a wall scraping blade.
3. The method for tempering by using the high-efficiency tempering device according to claim 1, wherein: and two groups of first helical blades which are symmetrically distributed at left and right are arranged on the third rotating shaft, and the helical directions of the two groups of first helical blades are opposite.
4. The method for tempering by using the high-efficiency tempering device according to claim 1, wherein: the first end to the second end of the third rotating shaft sequentially comprises a first conveying section, a middle section and a second conveying section, the middle section comprises a plurality of second middle paddles which are arranged on the third rotating shaft and aligned to the third discharge port, the second middle paddles are arranged at equal intervals along the circumferential direction of the third rotating shaft, the first conveying section comprises a plurality of first paddles which are arranged on the third rotating shaft, the first paddles are arranged at intervals along a fourth spiral direction, the arrangement direction of the first paddles is vertical to the axial direction of the third rotating shaft, the second conveying section comprises a plurality of second paddles which are arranged on the third rotating shaft, the second paddles are arranged at intervals along a fifth spiral direction, the rotation direction of the fourth spiral direction is opposite to the rotation direction of the fifth spiral direction, and the first paddles and the second paddles are symmetrically arranged one by one, the installation angle direction between each first paddle and the corresponding second paddle is opposite.
5. The method for tempering by using the high-efficiency tempering device according to claim 1, wherein: the third rotating shaft is provided with two groups of second spiral blades which are symmetrically distributed in a bilateral mode and a plurality of third blades which are arranged between the second spiral blades and aligned to the third discharge hole, the rotating directions of the second spiral blades are opposite, the third blades are distributed at equal intervals in the circumferential direction of the third rotating shaft, and the distribution direction of the third blades is perpendicular to the axial direction of the third rotating shaft.
6. The method for tempering by using the high-efficiency tempering device according to claim 1, wherein: the bottom of the first barrel is provided with a plurality of first temperature sensors which are arranged at equal intervals along the axial direction parallel to the first rotating shaft, the bottom of the second barrel is provided with a plurality of second temperature sensors which are arranged at equal intervals along the axial direction parallel to the second rotating shaft.
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| CN110180426B (en) * | 2019-07-10 | 2022-05-31 | 江苏丰尚智能科技有限公司 | Rotor of continuous mixer |
| CN110665386A (en) * | 2019-10-28 | 2020-01-10 | 徐州丰禾智能科技有限公司 | Material mixing equipment capable of uniformly stirring according to temperature |
| CN113893811A (en) * | 2021-11-10 | 2022-01-07 | 吴志学 | Method for producing mesophase C-stage resin high-carbon material by using novel heat polymerization pusher |
| CN115090137B (en) * | 2022-06-24 | 2023-10-03 | 三一技术装备有限公司 | Pulping equipment, pulping system and battery production system |
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