CN116371278A - Screw pulping device and monitoring control system thereof - Google Patents

Abstract

The invention relates to the technical field of lithium battery production, in particular to a screw pulping device and a monitoring control system thereof. Screw shaft screw pulping device includes: the screw rod is provided with at least one thread element on a screw rod shaft of the screw rod shaft so as to form at least one working area, and the screw rod shaft working areas are in one-to-one correspondence with the screw rod shaft thread elements; the machine barrel is sleeved on the outer peripheral surface of the screw shaft and the screw rod; at least one temperature sensor is arranged on the outer wall of the screw shaft machine barrel, and the screw shaft temperature sensor corresponds to the screw shaft working area and is suitable for detecting the temperature of the screw shaft working area. According to the screw pulping device provided by the invention, when the screw pulping device works, the temperature sensor can monitor the real-time temperature of materials in each stage in real time.

Description

Screw pulping device and monitoring control system thereof

Technical Field

The invention relates to the technical field of lithium battery production, in particular to a screw pulping device and a monitoring control system thereof.

Background

The screw extruder is used as a structure commonly used in the lithium battery industry, and can meet the characteristics of material conveying, kneading, dispersing, mixing and the like. Regardless of the screw pulping device, the whole structure mainly comprises a machine barrel, a screw, a transmission structure, a sealing piece and the like. The prior double-screw equipment mainly adopts a mandrel lap joint mode to realize different functions, and threaded elements with different functions (such as mixing, dispersing, shearing and the like) are threaded on a screw shaft.

In the processing process of the screw extruder, the temperature of the materials in the screw extruder seriously affects the quality of products, and the traditional temperature monitoring equipment is only arranged at the output end of the screw extruder to detect the temperature of the materials to be output, so that the temperature of the materials in each stage can not be monitored, and the requirements of the extrusion processing equipment on temperature detection can not be met.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is that the screw extruder in the prior art cannot monitor the real-time temperature of materials in each stage, so as to provide a screw pulping device and a monitoring control system thereof.

In order to solve the technical problems, the invention provides a screw pulping device, which comprises:

the screw rod is provided with at least one thread element on a screw rod shaft so as to form at least one working area, and the working areas are in one-to-one correspondence with the thread elements;

the machine barrel is sleeved on the outer peripheral surface of the screw;

at least one temperature sensor is arranged on the outer wall of the machine barrel, and corresponds to the working area, and the temperature sensor is suitable for detecting the temperature of the working area.

Optionally, the method further comprises:

and the heating executing piece is arranged on the machine barrel and is suitable for heating materials in the machine barrel.

Optionally, the method further comprises:

and the cooling executing piece is arranged on the machine barrel and is suitable for cooling the screw.

Optionally, the method further comprises:

the controller is respectively connected with the temperature sensor, the heating execution piece and the cooling execution piece, and is suitable for acquiring the working temperature a acquired by the temperature sensor, comparing the value of the working temperature a with the value of the expected temperature b, and when a is more than b, the cooling execution piece works; when a < b, the heating actuator operates.

Optionally, the heating actuator includes:

and the mica heating plate is arranged on the outer wall of the machine barrel.

Optionally, the cooling actuator includes:

and the flow passage penetrates through the wall of the cylinder along the axial direction of the cylinder and is suitable for circulating cooling liquid.

Optionally, the device is characterized in that at least two working areas are provided, and the temperature sensor is arranged on the outer wall of the machine barrel at the joint of the two working areas.

Optionally, the method further comprises:

the pressure sensor is arranged on the outer wall of the machine barrel and at least partially penetrates through the wall of the machine barrel, and the pressure sensor is suitable for detecting the pressure of the machine barrel.

Optionally, the screw is integrally machined.

A monitoring and control system comprising a screw pulping apparatus as described above.

The technical scheme of the invention has the following advantages:

1. the invention provides a screw pulping device which comprises a screw, a machine barrel and at least one temperature sensor. At least one thread element is arranged on a screw shaft of the screw rod so as to form at least one working area, and the working areas correspond to the thread elements one by one; the temperature sensor is arranged on the outer wall of the machine barrel, corresponds to the working area and is suitable for detecting the temperature of the working area. When the screw pulping device works, the temperature sensor can monitor the real-time temperature of the materials in each stage in real time.

2. The monitoring control system provided by the invention uses the screw pulping device, so that the monitoring control system has the advantages of any one of the above.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a barrel and related structures in an embodiment of the present invention;

FIG. 2 is a schematic top view of a screw pulping apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a screw pulping apparatus in an embodiment of the present invention;

FIG. 4 is a flow chart of a monitoring control system in an embodiment of the invention;

reference numerals illustrate:

1. a screw; 11. a fixed end; 12. a free end; 2. a barrel; 21. a bushing; 31. a temperature sensor; 32. a pressure sensor; 4. heating the actuator; 5. cooling the actuator; 61. a first bearing; 62. a second bearing; 63. a bearing fixing seat; 71. a sealing seat; 72. sealing a framework; 73. and (5) mechanical oil sealing.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

Referring to fig. 1 to 3, the screw pulping device provided in this embodiment includes:

the screw 1, there is at least one screwed element on the screw shaft of the screw 1, in order to form at least one working area, and the working area corresponds to screwed element one by one;

the machine barrel 2 is sleeved on the peripheral surface of the screw 1;

at least one temperature sensor 31 is provided on the outer wall of the barrel 2, and the temperature sensor 31 corresponds to the working area, the temperature sensor 31 being adapted to detect the temperature of the working area.

In detail, the screw 1 in the present embodiment adopts a twin-screw structure; in other embodiments, a single screw or triple screw configuration may also be employed.

It should be noted that, the screw pulping device is provided with a plurality of different thread elements at different positions of the screw 1 so as to realize various treatments on materials. Common screw functions are mixing, dispersing, shearing, etc. Here, the screw pulping apparatus provided in the present embodiment does not limit the functions and the number of the screw elements integrated on the screw 1.

Specifically, three threaded elements are arranged on the screw 1 of the screw pulping device in the embodiment to form three different working areas, namely, the number of the temperature sensors 31 is also three, and the temperature sensors are used for detecting the temperature differences of the different working areas so as to realize monitoring of the real-time temperature of materials in each stage.

According to the screw pulping device provided by the embodiment of the invention, at least one threaded element is arranged on the screw shaft of the screw 1 so as to form at least one working area, and the working areas are in one-to-one correspondence with the threaded elements; a temperature sensor 31 is provided on the outer wall of the barrel 2, and the temperature sensor 31 corresponds to the working area, the temperature sensor 31 being adapted to detect the temperature of the working area. When the screw pulping device works, the temperature sensor 31 can monitor the real-time temperature of the materials in each stage in real time.

Further, there are at least two working areas, and the temperature sensor 31 is disposed on the outer wall of the barrel 2 where the two working areas meet.

Further, the method further comprises the following steps:

a heating actuator 4, the heating actuator 4 being arranged on the barrel 2, the heating actuator 4 being adapted to heat the material in the barrel 2.

Still further, the heating actuator 4 includes:

and the mica heating plate is arranged on the outer wall of the machine barrel 2.

Specifically, the mica heating plate is arranged on the outer wall of the machine barrel 2 of different working areas, and if the temperature of the working areas does not reach the minimum temperature required during production, the mica heating plate can be heated to heat the working areas.

In detail, a plurality of mica heating plates can be arranged outside different working areas. If the temperature of only one working area does not reach the minimum temperature required in production, only the mica heating plate of the corresponding working area is started, and the energy saving method has the advantage of saving energy.

In addition, a plurality of mica heating plates are independently controlled, so that the gradient heating of materials in the screw pulping device can be realized. For example, the final output temperature of the material is required to be 30 degrees celsius, but the input temperature of the material is 20 degrees celsius, and the number of mica heating plates is set to be 4. The set temperatures of the 4 mica heating plates can be set to 46 ℃, 41 ℃, 36 ℃ and 31 ℃ in sequence according to the direction from the feed inlet to the discharge outlet, so that the output temperature of the material can reach the requirement of 30 ℃.

Further, the method further comprises the following steps:

and the cooling executing piece 5 is arranged on the machine barrel 2, and the cooling executing piece 5 is suitable for cooling the screw 1.

Still further, the cooling actuator 5 includes:

and a flow passage penetrates through the wall of the cylinder 2 along the axial direction of the cylinder 2, and the flow passage is suitable for circulating cooling liquid.

In practical production, if the screw pulping device does not need to be cooled, the liquid for heating can be circulated in the flow channel so as to improve the heating effect on the materials.

Specifically, the number of the flow channels is not limited herein, and in this embodiment, six flow channels are uniformly formed according to the diameter of the cylinder wall of the cylinder 2 in the radial direction, so as to ensure that the screw 1 in the cylinder 2 is uniformly cooled.

Specifically, the specific arrangement mode of the flow channel is not limited herein, and the flow channel may directly penetrate through the wall of the barrel 2, or may form a spiral flow channel around the screw 1 with the screw 1 as the center. The specific arrangement of the flow channels is not limited here.

Referring to fig. 4, further, the method further includes:

the controller is respectively connected with the temperature sensor 31, the heating executing piece 4 and the cooling executing piece 5, and is suitable for acquiring the working temperature a acquired by the temperature sensor 31, comparing the value of the working temperature a with the value of the expected temperature b, and when a is more than b, the cooling executing piece 5 works; when a < b, the heating actuator 4 operates.

Specifically, the values of the working temperature a and the expected temperature b can be adaptively adjusted according to the type of the material in the screw pulping device, and are not particularly limited herein.

Specifically, the expected temperature b may be a threshold value.

It should be noted that the existing pulping device has a complex machine head structure, high manufacturing cost and incapability of controlling the temperature of the solution. When the temperature of the molten material is too low, the dissolution rate of the material is slow, and the production progress cannot be met. Too high a melt temperature can also result in waste of energy. The embodiment of the invention realizes the control and monitoring of the temperature of each area during the production of the screw pulping device by additionally arranging the controller, the temperature sensor 31, the heating executing piece 4 and the cooling executing piece 5.

Further, the method further comprises the following steps:

a pressure sensor 32 disposed on the outer wall of barrel 2 and extending at least partially through the wall of barrel 2, the pressure sensor 32 being adapted to detect the pressure of barrel 2.

Specifically, the pressure sensor 32 is disposed on the outer wall of the barrel 2, but the detection end of the pressure sensor 32 needs to extend into the barrel 2 to detect the pressure inside the barrel 2.

In detail, the pressure sensor 32 can detect the pressure in the barrel 2, and can determine whether the interior of the barrel 2 is continuously and stably fed by detecting whether the pressure in the barrel 2 is changed, and can monitor whether the interior of the screw pulping device is blocked.

Further, the screw 1 is integrally processed.

Specifically, screw 1 adopts integral type processing, compares dabber overlap joint's structure, and the effectual error of having avoided the installation accumulation, the precision of batching is better.

Further, the screw 1 has a fixed end 11 connected to the transmission mechanism, and a free end 12 remote from the fixed end 11.

Further, the method further comprises the following steps:

a first bearing 61, the first bearing 61 is arranged at the connection part of the fixed end 11 and the transmission mechanism;

a second bearing 62, the second bearing 62 being disposed between the free end 12 and the barrel 2.

Specifically, the bearings are arranged on the two sides of the screw 1, so that the stability of the screw 1 in the machine barrel 2 can be ensured, and the service life of the screw 1 can be prolonged.

Further, the first bearing 61 is a tapered roller bearing adapted to withstand radial and axial forces of the screw 1.

Further, the second bearing 62 is a deep groove ball bearing adapted to withstand radial forces of the screw 1.

In detail, the screw pulping device is supported by using bearings at two ends, one side uses tapered roller bearings to bear radial force and axial force, and the other side uses deep groove ball bearings to bear radial force.

Specifically, the bearing is installed in the bearing frame, and a plurality of bearings can be placed in series in the bearing frame, so that larger torque can be born, friction between the inner walls of the double screw 1 and the machine barrel 2 is reduced, the service lives of the screw 1 and the machine barrel 2 are prolonged, the power of the motor is reduced, the torque is reduced, and the cost is reduced.

Further, a sealing seat 71 is arranged at the joint of the screw 1 and the machine barrel 2, and a framework seal 72 and a mechanical oil seal 73 are arranged on the sealing seat 71.

Specifically, the seal seat 71 is fixed on the side end surface of the machine barrel 2 through screws, the seal seat 71 is provided with a fixing spigot for installing a mechanical seal, and the mechanical seal is fixed at the shaft head position of the double screw 1 through a fastening screw of a movable ring after being installed on the seal seat 71. The ring will rotate with the screw 1. The static ring is in interference fit with the sealing seat 71, and a liquid film formed by the mechanical sealing moving ring and the static ring achieves a better sealing effect under the action of the spring pressure compensator. The tang position of installation skeleton oil blanket is designed to the opposite side of seal seat 71, can establish ties and install a plurality of oil blanket, and mechanical seal and skeleton oil blanket combination's design has guaranteed that the material can not leak in the transportation, and adds left-hand thread on the metal skeleton oil blanket double seal lip that adopts, uses pressure up to 35bar, has promoted sealed effect.

Further, the method further comprises the following steps:

a liner 21, the liner 21 is disposed on the inner surface of the barrel 2, and the liner 21 is made of ceramic material.

In detail, the bushing 21 is made of ceramic material, so that the influence of metal powder generated by friction during the operation of the twin-screw 1 on the material can be avoided.

Example 2

The embodiment provides a monitoring control system.

The above-described feed system employs the screw pulping apparatus of example 1 and thus has all the advantages of the screw pulping apparatus.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (10)

1. A screw pulping apparatus comprising:

the device comprises a screw (1), wherein at least one thread element is arranged on a screw shaft of the screw (1) to form at least one working area, and the working areas are in one-to-one correspondence with the thread elements;

the machine barrel (2) is sleeved on the outer peripheral surface of the screw rod (1);

at least one temperature sensor (31) is arranged on the outer wall of the machine barrel (2), and the temperature sensor (31) corresponds to the working area, and the temperature sensor (31) is suitable for detecting the temperature of the working area.

2. The screw pulping apparatus of claim 1, further comprising:

-a heating actuator (4), said heating actuator (4) being arranged on said barrel (2), said heating actuator (4) being adapted to heat the material in said barrel (2).

3. The screw pulping apparatus of claim 2, further comprising:

-a cooling actuator (5), said cooling actuator (5) being arranged on said barrel (2), said cooling actuator (5) being adapted to cool down said screw (1).

4. A screw pulping apparatus according to claim 3, further comprising:

the controller is respectively connected with the temperature sensor (31), the heating executing piece (4) and the cooling executing piece (5), and is suitable for acquiring the working temperature a acquired by the temperature sensor (31) and comparing the value of the working temperature a with the value of the expected temperature b, and when a is more than b, the cooling executing piece (5) works; when a < b, the heating actuator (4) operates.

5. Screw pulping apparatus according to claim 2, characterized in that said heating actuator (4) comprises:

and the mica heating plate is arranged on the outer wall of the machine barrel (2).

6. A screw pulping apparatus according to claim 3, characterized in that the cooling actuator (5) comprises:

and a flow passage penetrating through the wall of the machine barrel (2) along the axial direction of the machine barrel (2), wherein the flow passage is suitable for circulating cooling liquid.

7. Screw pulping apparatus according to any of claims 1-6, characterized in that at least two of said working areas are provided, and that said temperature sensor (31) is arranged on the outer wall of said barrel (2) where two of said working areas meet.

8. The screw pulping apparatus of claim 7, further comprising:

and the pressure sensor (32) is arranged on the outer wall of the machine barrel (2) and at least partially penetrates through the wall of the machine barrel (2), and the pressure sensor (32) is suitable for detecting the pressure of the machine barrel (2).

9. Screw pulping apparatus according to claim 1, characterized in that the screw (1) is manufactured in one piece.

10. A monitoring and control system comprising a screw pulping apparatus according to any of claims 1-9.

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