CN114177811A - Mixing device and method for heating sheet production raw materials - Google Patents
Mixing device and method for heating sheet production raw materials Download PDFInfo
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- CN114177811A CN114177811A CN202111586896.2A CN202111586896A CN114177811A CN 114177811 A CN114177811 A CN 114177811A CN 202111586896 A CN202111586896 A CN 202111586896A CN 114177811 A CN114177811 A CN 114177811A
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- 238000002156 mixing Methods 0.000 title claims abstract description 198
- 239000002994 raw material Substances 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 239000000084 colloidal system Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims 1
- 238000013329 compounding Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
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Abstract
The invention belongs to the technical field of production equipment, and particularly discloses a mixing device and method for heating sheet production raw materials. The mixer comprises a mixing hopper; the mixing hopper is a hollow cylinder; the water adding component is communicated with the mixing hopper working cavity, and the inflating component is communicated with the mixing hopper working cavity and is used for inflating inert gas into the mixing hopper working cavity; the axis of the hollow cylinder body is horizontally arranged, the two ends of the hollow cylinder body are connected with a horizontal rotating shaft, the horizontal rotating shaft is installed on a supporting frame of a production line and is connected with a driving motor, and the driving motor drives the rotating shaft to rotate, so that the mixing hopper is driven to rotate. The mixer not only can complete the mixing of production raw materials by only one device, but also has simple structure and is easy to popularize.
Description
Technical Field
The invention belongs to the technical field of production equipment, and particularly relates to a mixing device and method for heating sheet production raw materials.
Background
The existing heating sheet production raw materials are mixed by activated carbon, vermiculite, water-absorbent resin, salt, water and other raw materials according to a certain proportion, and the raw materials are mixed into a water-retaining agent by a cone mixer, and then are mixed with iron powder according to a certain proportion by using special equipment. Because the mixed raw materials generate oxidation reaction and generate heat rapidly in a short time, a large-scale conical mixing machine is required to be used for preparing the water retention agent in the prior production process, and then the water retention agent and the iron powder are conveyed into a hopper of a packaging machine after being subjected to proportion regulation in a special proportion distribution device in a transfer container. The production mode of the separated mixed materials has the following problems: firstly, the adopted equipment is huge, and the production and maintenance cost is increased; secondly, a large amount of agglomeration can be generated when the powder in the conical mixing roll is kneaded and pressed by the stirring screw; and thirdly, the mixture is transferred to a small transfer container for storage, so that the production process is increased, and the production labor and material cost is increased. Therefore, a solution is urgently needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a mixing device and a mixing method for heating sheet production raw materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mixing device and a method for raw materials for producing heating sheets are characterized by comprising a mixing hopper; the mixing hopper is a hollow cylinder; the water adding component is communicated with the mixing hopper working cavity, and the inflating component is communicated with the mixing hopper working cavity and is used for inflating inert gas into the mixing hopper working cavity; the axis of the hollow cylinder body is horizontally arranged, the two ends of the hollow cylinder body are connected with a horizontal rotating shaft, the horizontal rotating shaft is installed on a supporting frame of a production line and is connected with a driving motor, and the driving motor drives the rotating shaft to rotate so as to drive the mixing hopper to rotate.
The diameter of the mixing hopper is larger than the width of the mixing hopper, and the mixing hopper gradually narrows from the center to the edge, so that the mixing hopper is flat; raw materials are filled in a mixing working cavity, the raw materials do centrifugal motion along with the rotation of a mixing hopper and approach to the narrowing part of the edge of the mixing hopper, and a feeding hole is arranged at the edge of the mixing hopper; a sealing cover is arranged at the feed inlet; the sealing cover is provided with a blocking plate fixedly connected with the sealing cover, the sealing cover covers the feed inlet, the blocking plate extends into the working cavity of the mixing hopper, the working cavity at the edge narrowing position where the blocking plate is located in the mixing hopper is divided into a plurality of gaps, and therefore raw materials passing through the blocking plate are stirred in the rotating process of the mixing hopper.
Preferably, the horizontal rotation shaft includes a first driven shaft and a second driven shaft; the inflation assembly is mounted on a first driven shaft; the water adding assembly is arranged on a second driven shaft; one end of the first driven shaft is provided with a belt pulley, and the other end of the first driven shaft is connected with one side of the mixing hopper; the second driven shaft is connected with the other side of the mixing hopper; a driving shaft of the driving motor is provided with a driving wheel; the transmission wheel is connected with the belt pulley through a belt.
Preferably, the inflation assembly comprises an inflation tube and a rotatable joint; one end of the inflation pipe is connected with the high-pressure gas tank, and the other end of the inflation pipe is communicated with a gas inlet of the rotatable joint; the rotatable joint is arranged at the end part of the first driven shaft, and a hollow guide pipe is arranged in the first driven shaft; one end of the hollow conduit is communicated with the air outlet of the rotatable joint, and the other end of the hollow conduit is communicated with the working cavity comprising the mixing hopper.
Preferably, a hollow water guide pipe is arranged inside the second driven shaft; the water adding assembly comprises a water guide pipe and a water pipe rotatable joint; one end of the hollow water guide pipe is communicated with a rotatable joint of the water pipe arranged at the end part of the second driven shaft, and the other end of the hollow water guide pipe is communicated with a working cavity of the mixing hopper; one end of the water guide pipe is communicated with the water pump, and the other end of the water guide pipe is communicated with a water inlet of the water pipe rotatable joint.
Preferably, the device also comprises a spray head; the spray head is arranged at the communication position of the hollow water guide pipe and the mixing hopper working cavity.
Preferably, the device further comprises an exhaust valve; the exhaust valve is arranged on the outer wall of the mixing hopper and is communicated with the inner part of the mixing hopper working cavity.
Preferably, the device also comprises a discharge hole; the discharge port is arranged on the mixing hopper and is symmetrically arranged with the feed port, and the discharge port is provided with a discharge valve for sealing.
Preferably, also comprises a DLC anti-adhesion coating; the DLC anti-sticking coating is arranged on the inner wall of the mixing hopper working cavity; and nitrogen is filled in the high-pressure gas tank.
The preferred specific operation steps are as follows:
s1: under the condition that a feed inlet and a discharge outlet of the mixing hopper are closed, an exhaust valve on the mixing hopper is opened, a valve of a high-pressure gas tank is opened at the same time, so that gas obtained in the high-pressure gas tank flows into a working cavity of the mixing hopper along an inflation pipe, a rotatable joint and a hollow conduit, and air is discharged along the exhaust valve under the extrusion of nitrogen until the air in the working cavity of the mixing hopper is completely replaced by the nitrogen to form an oxygen-free environment;
s2: closing the exhaust valve, opening the sealing cover at the feed inlet, and pouring the production raw materials into the working cavity of the mixing hopper;
s3: closing the sealing cover, starting the driving motor to drive the mixing hopper to rotate slowly and acceleratively, fully dispersing the raw materials in the working cavity of the mixing hopper under the action of centrifugal force, gradually gathering the raw materials to the gradually narrowing position of the mixing hopper, blocking the raw materials passing through the edge narrowing position by the blocking plate at the edge narrowing position, and forcing the raw materials to pass through a gap formed between the blocking plate and the inner wall of the working cavity of the mixing hopper so as to stir the raw materials;
s4: after the raw materials rotate at a high speed for a period of time along with the mixing hopper, adjusting the driving motor to drive the mixing hopper to rotate at a low speed, mixing the raw materials in a reciprocating manner in a working cavity of the mixing hopper under the action of self gravity, and stirring the raw materials again at the position of the barrier plate;
s5: after the raw materials are fully stirred, a water pump is started, water is injected into a working cavity of a mixing hopper, a driving motor is adjusted to drive the mixing hopper to rotate at a low speed at the same time, so that colloid is formed after the water and the raw materials are stirred, an exhaust valve is opened at the same time, nitrogen is injected into the mixing hopper again, and oxygen brought into the working cavity of the mixing hopper by a water body is replaced and discharged;
s6: and closing the driving motor, and opening a discharge valve at the discharge port to enable the colloid to enter the next production procedure.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the raw material mixing hopper is arranged into a hollow cylinder, the axis of the hollow cylinder is horizontally arranged, and the two ends of the cylinder are connected with the horizontal rotating shafts, so that when the driving motor drives the rotating shafts to rotate, the raw materials in the mixing hopper also rotate along with the rotating shafts, and by changing the rotating speed of the rotating shafts, the raw materials can be fully dispersed under the action of centrifugal force when the rotating speed is high, and the raw materials can be fully mixed under the action of gravity when the rotating speed is low. In addition, still add nitrogen gas in the compounding fill for form anaerobic environment in the working chamber of mixing fill, avoid the raw materials to produce oxidation reaction at the mixing stirring in-process, in addition still add water in the compounding fill, make originally the process that needs separately go on unite two into one in the compounding fill. The method not only simplifies and changes the original production process, but also saves a large amount of manpower and material resources while improving the product quality, reduces the production cost and also improves the production efficiency.
(2) The diameter of the mixing hopper is larger than the width of the mixing hopper, and the mixing hopper gradually narrows from the center to the edge, so that the mixing hopper is flat, a feed port is arranged at the edge, and a sealing cover is arranged at the feed port; the sealing cover is provided with a blocking plate fixedly connected with the sealing cover, the sealing cover covers the feed inlet, and the blocking plate extends into the working cavity of the mixing hopper, so that the working cavity at the edge narrowing position where the blocking plate is located in the mixing hopper is separated into a plurality of gaps. When the motor drives the mixing hopper to rotate, the raw materials in the mixing hopper can gradually gather and draw close to the edge narrowing part of the mixing hopper, the blocking plate at the edge narrowing part can block the raw materials passing through the edge narrowing part, and the raw materials are forced to pass through the gap formed between the blocking plate and the inner wall of the working chamber of the mixing hopper, so that the raw materials are stirred, and the raw materials are mixed more fully.
(3) The invention is provided with an inflation tube and a rotatable joint, and a hollow guide tube is arranged in the first driven shaft. The gas tube inputs nitrogen gas in the high-pressure gas tank into the mixing hopper along the rotatable joint and the hollow guide tube which are arranged at one end of the first driven shaft, so that inert gas is filled into the working cavity of the mixing hopper, and the working cavity of the mixing hopper is always in an oxygen-free environment. This has not only avoided traditional heating piece raw materials to produce phenomena such as oxidation reaction, production of heat easily, moreover through providing anaerobic compounding environment for the process of traditional separately compounding evolves into synchronous compounding, has guaranteed that the raw materials mixes more fully, makes final heating piece produce the finished product and possess longer effect of generating heat, thereby has promoted the quality of product.
(4) One end of the hollow water guide pipe is communicated with a rotatable joint of a water pipe arranged at the end part of the second driven shaft, and the other end of the hollow water guide pipe is communicated with a working cavity of the mixing hopper; and the water inlet of rotatable joint and aqueduct intercommunication, the aqueduct communicates with the water pump again, this makes the raw materials in the working chamber of mixing hopper mix the process of adding water after abundant. In addition, because the shower nozzle has been installed in the intercommunication department of cavity aqueduct and compounding fill working chamber, water can evenly spray when the shower nozzle for the drop of water can fully fuse with the raw materials in the pivoted mixing fill, makes the raw materials soak fully, finally obtains high-quality colloid, thereby has further promoted the quality of product.
(5) According to the invention, the DLC anti-sticking coating is arranged on the inner wall of the working cavity of the mixing hopper, so that the problem of sticking of the raw materials to the wall is solved ingeniously, the raw materials can be mixed more fully, and the mixing effect of the mixing hopper is improved.
(6) The discharge port and the feed port are symmetrically arranged, so that the structural symmetry of the mixing hopper is ensured, the mixing hopper is uniformly balanced and is more stable in the rotating process, in addition, sealing measures are arranged at the discharge port and the feed port, the stability of an oxygen-free mixing environment in a working cavity of the mixing hopper is ensured, and the mixing effect is improved.
(7) The invention is provided with the exhaust valve, when nitrogen is filled into one side of the working cavity of the mixing hopper, the air in the working cavity of the mixing hopper is exhausted from the other side of the working cavity of the mixing hopper through the exhaust valve, thereby ensuring the anaerobic environment in the mixing hopper and improving the mixing effect of the mixing hopper.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The actual correspondence between each label and the part name of the invention is as follows:
10-mixing hopper 11-feeding inlet 12-exhaust valve 13-discharging outlet 14-barrier plate
21-first driven shaft 22-second driven shaft 30-driving motor 31-transmission wheel
32-belt pulley 40-inflation tube 50-aqueduct
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.
The first embodiment;
the mixing device and the method for the heating sheet production raw materials are characterized by comprising a mixing hopper 10, wherein the mixing hopper 10 is a hollow cylinder; the diameter of the hollow cylinder is larger than the width of the hollow cylinder, and the mixing hopper 10 gradually narrows from the center to the edge, so that the mixing hopper 10 is flat. The hollow cylinder is horizontally placed, the axis of the hollow cylinder is parallel to the ground, two ends of the hollow cylinder are respectively connected with the first driven shaft 21 and the second driven shaft 22, the first driven shaft 21 and the second driven shaft 22 are connected to a horizontal installation production line supporting frame, a belt pulley 32 is arranged at one end of the first driven shaft 21, and the belt pulley 32 is connected with a driving wheel 31 arranged on a driving shaft of a driving motor 30 through a belt. The driving motor 30 drives the first driven shaft 21 to rotate through the belt, so as to drive the second driven shaft 22 and the mixing hopper 10 to rotate synchronously.
A feed inlet 11 is arranged at the edge narrowing part of the mixing hopper 10, and a sealing cover is covered on the feed inlet 11. The sealing cover is also provided with a blocking plate 14 fixedly connected with the sealing cover, the blocking plate 14 has a certain length, when the sealing cover covers the feed port 11, the blocking plate 14 extends into the working cavity of the mixing hopper 10, and the working cavity at the edge narrowing position where the blocking plate 14 is positioned in the mixing hopper 10 is divided into a plurality of gaps. Because the rotating speed of the driving motor 30 can be adjusted, after the raw materials are added into the mixing hopper 10 through the feeding hole 11, the sealing cover is covered, the driving motor 30 is started to drive the mixing hopper 10 to synchronously rotate at a high rotating speed, and therefore the raw materials do centrifugal motion in the mixing hopper 10. The production process is simplified, a large amount of manpower and material resources are saved, and the production efficiency is improved while the production cost is reduced.
Because the inner wall of the working cavity of the mixing hopper 10 is coated with the DLC anti-sticking layer, the raw materials can not stick to the wall, so that the raw materials can be fully dispersed under the action of centrifugal force. The raw materials are gradually gathered at the edge narrowing position of the mixing hopper 10 under the action of centrifugal force, and the blocking plate 14 is just positioned at the edge narrowing position of the mixing hopper 10, so that the raw materials are forced to pass through a gap formed between the blocking plate 14 and the inner wall of the working cavity of the mixing hopper 10, and the blocking plate 14 preliminarily stirs the raw materials passing through the edge narrowing position. When the raw materials are completely gathered at the edge of the mixing hopper 10 under the action of the centrifugal force and do not move relative to the mixing hopper 10 any more, the driving motor 30 is adjusted to rotate at a low speed, and therefore the mixing hopper 10 also rotates slowly. At this moment, the raw material in the mixing hopper 10 makes free falling body movement back and forth in the working chamber of the mixing hopper 10 under the action of self gravity, when the raw material passes through the barrier plate 14, the barrier plate 14 is covered by the raw material, when the raw material falls back in the direction far away from the barrier plate 14, the raw material passes through the gap between the barrier plate 14 and the inner wall of the working chamber of the mixing hopper 10, and thus the raw material is stirred again by the barrier plate 14. The rotation speed of the mixing hopper 10 driven by the driving motor 30 is adjusted in a reciprocating manner, and the raw materials are fully mixed under the cooperation of the barrier plate 14.
A hollow guide pipe is arranged in the first driven shaft 21, one end of the hollow guide pipe is communicated with the working cavity of the mixing hopper 10, the other end of the hollow guide pipe is communicated with the air outlet of a rotatable joint arranged at the end part of the first driven shaft 21, the air inlet of the rotatable joint is communicated with an inflation pipe 40, and the inflation pipe 40 is communicated with a high-pressure air tank. In actual production, the high-pressure gas tank is filled with inert gas, preferably nitrogen. An exhaust valve 12 is further arranged on the outer wall of the mixing hopper 10, the exhaust valve 12 is communicated with the working cavity of the mixing hopper 10, the exhaust valve 12 is opened, and inert gas in a high-pressure gas tank is filled into the working cavity of the mixing hopper 10 through an inflation tube 40, so that an oxygen-free environment is created in the working cavity of the mixing hopper 10. At this time, the raw materials are added into the working cavity of the mixing hopper 10 along the feeding hole 11 of the mixing hopper 10, so that the problem of oxidation reaction of the raw materials is solved. This has not only avoided traditional heating piece raw materials to produce phenomena such as oxidation reaction, production of heat easily, moreover through providing anaerobic compounding environment for the process of traditional separately compounding evolves into synchronous compounding, makes more abundant that the raw materials mixes, thereby has promoted the quality of product.
A hollow water guide pipe is arranged in the second driven shaft 22, one end of the hollow water guide pipe is communicated with a water pipe rotatable joint arranged at the end part of the second driven shaft 22, and the other end of the hollow water guide pipe is communicated with the working cavity of the mixing hopper 10. The rotatable joint of the water pipe is communicated with the water guide pipe 50, and one end of the water guide pipe 50 is communicated with the water pump. Therefore, after the raw materials in the working cavity of the mixing hopper 10 are fully mixed, water can be added into the raw materials to produce the colloid.
The shower nozzle is installed in the intercommunication department of cavity aqueduct and compounding fill 10 working chambers, and rivers can fully spray on the inner wall of raw materials and compounding fill 10 working chambers when the shower nozzle. Because the inner wall of the working cavity of the mixing hopper 10 is coated with the DLC anti-sticking layer, water and colloidal raw materials can not stick to the wall, so that water drops can be fully fused with the raw materials in the rotating mixing hopper, the raw materials can be fully soaked, high-quality colloid is finally obtained, and the quality of products is further improved.
The material mixing hopper 10 is further provided with a material outlet 13, the material outlet 13 and the material inlet 11 are symmetrically arranged, and a material outlet valve seal is arranged at the material outlet 13. After the raw materials in the mixing hopper 10 have completed the corresponding production process, the next production process is performed along the discharge port 13.
Example two;
the concrete operation steps of the mixing device of the invention are as follows:
the first step is as follows: under the condition that the feeding port 11 and the discharging port 13 of the mixing hopper 10 are closed, the exhaust valve 12 on the mixing hopper 10 is opened, and meanwhile, the valve of the high-pressure air tank is opened, so that the obtained air in the high-pressure air tank flows into the working cavity of the mixing hopper 10 along the inflation pipe 40, the rotatable joint and the hollow conduit, and the air is discharged along the exhaust valve 12 under the extrusion of the nitrogen until the air in the working cavity of the mixing hopper 10 is completely replaced by the nitrogen, and an oxygen-free environment is formed in the working cavity of the hopper 10.
The second step is that: the exhaust valve 12 is closed, the sealing cover at the feed inlet 11 is opened, and the production raw materials are poured into the working cavity of the mixing hopper 10.
The third step: closing the sealing cover, starting the driving motor 30 to drive the mixing hopper 10 to rotate slowly and acceleratedly, wherein under the action of centrifugal force, the raw materials are fully dispersed in the working cavity of the mixing hopper 10 and gradually gather at the gradual narrowing position of the mixing hopper 10, and the blocking plate 14 at the edge narrowing position can block the raw materials passing through the edge narrowing position, so that the raw materials are forced to pass through a gap formed between the blocking plate 14 and the inner wall of the working cavity of the mixing hopper 10, and the raw materials are stirred.
The fourth step: after the raw materials rotate at a high speed for a period of time along with the mixing hopper 10, the driving motor 30 is adjusted to drive the mixing hopper 10 to rotate at a low speed, the raw materials are mixed in a reciprocating manner in the working cavity of the mixing hopper 10 under the action of self gravity, and the raw materials are stirred again through the barrier plate 14.
The fifth step: after the raw materials are fully stirred, a water pump is started, water is injected into the working cavity of the mixing hopper 10, the driving motor 30 is adjusted to drive the mixing hopper 10 to rotate at a low speed, so that the water and the raw materials are stirred to form a colloid, the exhaust valve 12 is opened, nitrogen is injected into the mixing hopper 10 again, and oxygen brought into the working cavity of the mixing hopper 10 by the water is discharged in a replacement manner.
And a sixth step: the driving motor 30 is closed, and the discharging valve at the discharging port 13 is opened, so that the colloid enters the next production process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A mixing device and a method for raw materials for producing heating sheets are characterized by comprising a mixing hopper (10); the mixing hopper (10) is a hollow cylinder; the device also comprises a water adding component communicated with the working cavity of the mixing hopper (10) and an inflating component communicated with the working cavity of the mixing hopper (10) and used for inflating inert gas into the working cavity; the axis of the hollow cylinder body is horizontally arranged, the two ends of the hollow cylinder body are connected with a horizontal rotating shaft, the horizontal rotating shaft is installed on a supporting frame of a production line and is connected with a driving motor (30), and the driving motor (30) drives the rotating shaft to rotate so as to drive a mixing hopper (10) to rotate.
2. A mixing apparatus and method for heating element production raw material as claimed in claim 1, wherein the mixing hopper (10) has a diameter larger than its width, and the mixing hopper (10) has a gradually narrowing trend from the center to the edge, so that the mixing hopper (10) is flat; raw materials are filled in a working cavity of the mixing hopper (10), the raw materials do centrifugal motion along with the rotation of the mixing hopper (10) and approach to the narrowing part of the edge of the mixing hopper (10), and a feeding hole (11) is arranged at the edge of the mixing hopper (10); a sealing cover is arranged at the feed port (11); the sealing cover is provided with a blocking plate (14) fixedly connected with the sealing cover, the sealing cover covers the feeding hole (11), the blocking plate (14) extends into a working cavity of the mixing hopper (10), the working cavity at the edge narrowing position where the blocking plate (14) is located in the mixing hopper (10) is divided into a plurality of gaps, and therefore raw materials passing through the blocking plate (14) are stirred in the rotating process of the mixing hopper (10).
3. A mixing device and a method for heating sheet production raw material according to claim 2, characterized in that the horizontal rotation axis comprises a first driven shaft (21) and a second driven shaft (22); the inflation assembly is mounted on a first driven shaft (21); the water adding assembly is arranged on a second driven shaft (22); one end of the first driven shaft (21) is provided with a belt pulley (32), and the other end of the first driven shaft is connected with one side of the mixing hopper (10); the second driven shaft (22) is connected with the other side of the mixing hopper (10); a driving wheel (31) is arranged on a driving shaft of the driving motor (30); the transmission wheel (31) is connected with the belt pulley (32) through a belt.
4. A mixing apparatus and method for heating element production feedstock as claimed in claim 3 wherein said inflation assembly comprises an inflation tube (40) and a rotatable joint; one end of the inflation tube (40) is connected with the high-pressure gas tank, and the other end of the inflation tube is communicated with a gas inlet of the rotatable joint; the rotatable joint is arranged at the end part of the first driven shaft (21), and a hollow guide pipe is arranged in the first driven shaft (21); one end of the hollow conduit is communicated with the air outlet of the rotatable joint, and the other end of the hollow conduit is communicated with a working cavity comprising a mixing hopper (10).
5. A mixing device and a method for heating sheet production raw materials according to claim 3 or 4, characterized in that a hollow water guide pipe is arranged inside the second driven shaft (22); the water adding assembly comprises a water guide pipe (50) and a rotatable water pipe joint; one end of the hollow water guide pipe is communicated with a rotatable joint of a water pipe arranged at the end part of the second driven shaft (22), and the other end of the hollow water guide pipe is communicated with a working cavity of the mixing hopper (10); one end of the water guide pipe (50) is communicated with the water pump, and the other end of the water guide pipe is communicated with the water inlet of the water pipe rotatable joint.
6. A mixing device and a method for a heating sheet production raw material according to claim 5, characterized by further comprising a spray head; the spray head is arranged at the communication position of the hollow water guide pipe and the working cavity of the mixing hopper (10).
7. A mixing device and a method for raw materials for producing heating sheets as claimed in claim 6, characterized by further comprising an exhaust valve (12); the exhaust valve (12) is arranged on the outer wall of the mixing hopper (10) and is communicated with the inside of the working cavity of the mixing hopper (10).
8. A mixing device and a method for raw materials for producing heating sheets as claimed in claim 7, characterized by further comprising a discharge port (13); the discharge port (13) is arranged on the mixing hopper (10) and is symmetrically arranged with the feed port (11), and the discharge port (13) is provided with a discharge valve seal.
9. A mixing device and method for heating sheet production raw material as claimed in claim 8, characterized by further comprising an anti-adhesion coating layer of DLC; the DLC anti-sticking coating is arranged on the inner wall of the working cavity of the mixing hopper (10); and nitrogen is filled in the high-pressure gas tank.
10. A mixing device and a method for raw materials for producing heating sheets according to any one of claims 1 to 9, characterized in that the specific operation steps are as follows:
s1, under the condition that a feed inlet (11) and a discharge outlet (13) of the mixing hopper (10) are closed, opening an exhaust valve (12) on the mixing hopper (10), simultaneously opening a valve of a high-pressure gas tank, enabling gas in the high-pressure gas tank to flow into a working cavity of the mixing hopper (10) along an inflation pipe (40), a rotatable joint and a hollow conduit, and enabling air to be exhausted along the exhaust valve (12) under the extrusion of nitrogen until the air in the working cavity of the mixing hopper (10) is completely replaced by the nitrogen to form an oxygen-free environment;
s2, closing the exhaust valve (12), opening the sealing cover at the feed inlet (11), and pouring the production raw materials into the working cavity of the mixing hopper (10);
s3, closing the sealing cover, starting the driving motor (30) to drive the mixing hopper (10) to rotate slowly and quickly, fully dispersing the raw materials in the working cavity of the mixing hopper (10) under the action of centrifugal force, gradually gathering the raw materials to the gradually narrowing position of the mixing hopper (10), blocking the raw materials passing through the edge narrowing position by the blocking plate (14) at the edge narrowing position, and forcing the raw materials to pass through a gap formed between the blocking plate (14) and the inner wall of the working cavity of the mixing hopper (10) so as to stir the raw materials;
s4, after the raw materials rotate at a high speed for a period of time along with the mixing hopper (10), adjusting the driving motor (30) to drive the mixing hopper (10) to rotate at a low speed, mixing the raw materials in a reciprocating manner in the working cavity of the mixing hopper (10) under the action of self gravity, and stirring the raw materials again at the position of the blocking plate (14);
s5, after the raw materials are fully stirred, turning on a water pump, injecting water into a working cavity of the mixing hopper (10), adjusting a driving motor (30) to drive the mixing hopper (10) to rotate at a low speed, so that the water and the raw materials are stirred to form colloid, simultaneously turning on an exhaust valve (12), injecting nitrogen into the mixing hopper (10) again, and discharging oxygen brought into the working cavity of the mixing hopper (10) by the water body in a replacement manner;
s6, closing the driving motor (30), and opening a discharge valve at the discharge port (13) to enable the colloid to enter the next production procedure.
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| CN202111586896.2A CN114177811A (en) | 2021-12-23 | 2021-12-23 | Mixing device and method for heating sheet production raw materials |
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