CN218576686U - A PVB crushing and stirring device - Google Patents

Abstract

The utility model provides a PVB crushing and stirring device, which includes a casing, a crushing device, a collecting device and a control system, and is characterized in that it also includes a feeding device and a stirring device, and the crushing device, collecting device, feeding device and stirring device are from top to bottom The crushing device includes a drum, a crushing mechanism inside the drum, and a rotary drive mechanism. A screen is set in the middle of the drum, and the drum is driven by the rotary drive mechanism to rotate. The side wall of the casing is provided with a PVB feed port, an additive feed port and a discharge port, the PVB feed port communicates with the inside of the drum, the additive feed port communicates with the feeding device, and the collecting device communicates with the feeding device. The stirring device includes a stirring paddle and a stirring driving mechanism. The utility model has the advantages of simple and compact structure, simple operation, low energy consumption and high production efficiency. It can not only realize the full pulverization of PVB, but also realize the stirring of adding plasticizers and additives.

Description

A PVB crushing and stirring device

technical field

The utility model belongs to the technical field of chemical production equipment, in particular to a PVB crushing and stirring device.

Background technique

Polyvinyl butyral (PVB) is a condensation product obtained by reacting polyvinyl alcohol (PVA) with butyraldehyde under acid catalysis. PVB molecules contain longer branched chains, have good flexibility, excellent transparency, strong adhesion, good light resistance, heat resistance, cold resistance, water resistance, film-forming properties, solubility, miscibility, High tensile strength and impact resistance, etc., are widely used in safety glass interlayer, photovoltaic module packaging film, vacuum aluminized paper and paint ceramic decal paper, aluminum foil paper, adhesives and other fields. With the rapid development of industries such as automobiles and construction, the demand for high-quality PVB resin is more vigorous, and the demand continues to grow rapidly.

At present, the production technology of high-end polyvinyl butyral is basically monopolized by developed countries and regions such as Europe and the United States, and the high-quality PVB resin used for safety glass interlayer is mainly imported from these countries and regions.

In the production and processing process of PVB film, there is a step that needs to pulverize PVB particles, then add certain plasticizers and additives and stir, and then use a machine to extrude into a film. In this production process, it is necessary to thoroughly crush PVB to a certain fineness of powder, then add plasticizers and additives to PVB powder, and then fully stir to make them fully blend together, and finally, extrude Compression molding.

Facing the above problems, Chinese patent (application number 201520987159.7) discloses an integrated crushing and screening device for PVB production, which includes a lifting shell and a crushing shell, and a feed inlet is provided on the left side of the lower part of the lifting shell. There is a first rotating shaft inside the lifting housing, the upper end of the first rotating shaft is connected with the first motor located above the lifting housing, the first rotating shaft is provided with a helical blade, the upper right side of the lifting housing is provided with a discharge port, and the discharge port The lower part is connected with a crushing shell; the crushing shell is provided with a second rotating shaft, the second rotating shaft is connected with a second motor located above the crushing shell, and crushing blades are uniformly arranged on the second rotating shaft. The beneficial effect of this patent is that the crushed materials whose particle size does not meet the requirements of use can be lifted and crushed again until they meet the requirements of use, and the continuity is strong; The amount of vibration makes the vibrating cylinder vibrate, so that the materials that meet the particle size requirements are separated. This patent can pulverize PVB into a suitable size, and it can lift and pulverize the materials whose particle size cannot meet the usage requirements after pulverization, until they meet the usage requirements. The crushing requirements of PVB have been realized.

Although the above-mentioned patents have improved the pass rate of PVB crushing, the whole device is relatively complicated, occupies a large space, and consumes more energy. Unqualified PVB particles need to be lifted by the device and added to the crushing device again, which consumes a lot Necessary energy, production efficiency is very low, and there is no subsequent feeding and stirring device for plasticizers and additives.

Therefore, how to design a PVB crushing and stirring device, which has a simple and compact structure, simple operation, low energy consumption, and high production efficiency, which can not only realize the full crushing of PVB, but also realize the mixing of plasticizers and additives. This is a technical problem to be solved urgently in this field.

Utility model content

In order to solve the above-mentioned problems existing in the prior art, the utility model provides a PVB crushing and stirring device, which has a simple and compact structure, simple operation, low energy consumption and high production efficiency, which can not only fully crush PVB, but also realize Add plasticizers and additives and stir.

The purpose of this utility model is achieved by the following technical solutions:

A PVB crushing and stirring device, comprising a shell, a crushing device, a collecting device and a control system, characterized in that it also includes a feeding device and a stirring device, and the crushing device, collecting device, feeding device and stirring device are sequentially arranged from top to bottom In the shell, the crushing device includes a drum, a crushing mechanism inside the drum, and a rotary drive mechanism. The drum rotates, a screen is set on the side wall of the middle part of the drum, the collecting device is arranged under the middle part of the drum, the collecting device communicates with the feeding device below it, and the upper side wall of the shell is set A PVB feed port, the PVB feed port communicates with the inside of the drum, an additive feed port is provided on the middle side wall of the shell, the additive feed port communicates with the feeding device, and the shell The lower side wall is provided with a discharge port, the stirring device includes a stirring paddle and a stirring drive mechanism, the stirring paddle is installed at the bottom of the shell, the control end of the rotary drive mechanism and the stirring drive mechanism is connected to the connection to the control system described above.

Improvement to the above technical solution: the crushing mechanism includes a first crushing mechanism and a second crushing mechanism, the first crushing mechanism includes a rotating shaft and blades, and a plurality of blades are arranged on the rotating shaft, so that the rotating shaft forms a rotating stabbing stick, The rotating stabbing stick is arranged horizontally, and its two ends form a rotational fit with the inner wall of the housing, and the rotating stabbing stick is driven to rotate by the rotary drive mechanism through the speed change mechanism to crush the PVB. The second crushing mechanism includes extruding gears and driving motors arranged in pairs on the inner wall of the drum, and the driving motor drives two adjacent extruding gears to rotate in reverse through the transmission mechanism to realize the crushing and crushing of PVB , the control terminals of the drive motors are all connected to the control system.

A further improvement to the above technical solution: a metering device is arranged below the collection device, the metering device includes a metering device housing and a metering sensor therein, the metering sensor is connected to the control system, and the metering device housing A metering inlet is provided on the top, and a metering outlet is arranged at the bottom of the housing of the metering device. The collecting device communicates with the metering inlet, and the metering outlet communicates with the feeding device below it.

A further improvement to the above technical solution: the collecting device is a funnel-shaped collecting tray with a material leakage hole in the middle, the feeding device adopts a shower structure, and feeding holes are respectively set on the top surface and the bottom surface of the feeding device and several spraying holes, the leakage hole communicates with the feed hole through a pipeline, and the additive feed port communicates with the leakage hole through a pipeline.

A further improvement to the above technical solution: there are at least two stirring paddles, the stirring paddles include stirring blades and a stirring shaft, the stirring drive mechanism includes a stirring motor and a transmission shaft, and the transmission shaft is connected to the stirring shaft , the control system controls the rotation speed of the stirring motor.

A further improvement to the above technical solution: the casing is a vertical square cylinder or a vertical cylinder, a valve is set at the discharge port of the casing, and the control system is set on the inner wall of the casing.

Advantage and positive effect of the present utility model are:

1. The utility model realizes the qualified pulverization of PVB particles and the subsequent mixing of plasticizers and additives, which simplifies the process and reduces the cost;

2. The utility model avoids subsequent problems caused by uneven stirring;

3. The utility model realizes the uniform feeding of PVB powder, plasticizer, auxiliary agent, etc.;

4. The utility model can save energy, has a simple principle, is easy to operate, and is convenient for disassembly, maintenance and cleaning.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of a PVB crushing and stirring device of the present invention.

Fig. 2 is a functional block diagram of a control system in a PVB crushing and stirring device of the present invention.

The numbers in the figure are: 1-PVB feed inlet, 2-first crushing mechanism, 3-screen, 4-second crushing mechanism, 5-rotating shaft, 6-control system, 7-additive feed inlet, 8-feeding Device, 9-stirring shaft, 10-stirring blade, 11-drum, 12-collecting device, 13-metering system, 14-valve, 15-discharge port, 16-driving motor, 17-stirring motor, 18-rotary motor .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1, Fig. 2, the embodiment of a kind of PVB pulverizing and agitating device of the present utility model, comprises shell, pulverizing device, collecting device and control system 6, also comprises collecting device 12, feeding device 8 and stirring device, described pulverizing device , the collecting device 12, the feeding device 8 and the stirring device are sequentially arranged in the shell from top to bottom. The above-mentioned crushing device includes a drum 11, a crushing mechanism in the drum 11 and a rotary drive mechanism. The drum 11 is arranged horizontally, and its two ports form a rotational fit with the shell, and the rotary drive mechanism drives the drum 11 to rotate. A screen 3 is set on the wall. The collection device 12 is arranged below the middle part of the drum 11, and the collection device 12 communicates with the feeding device 8 below it, and a PVB feed port 1 is arranged on the upper side wall of the casing, and the PVB feed port 1 communicates with the inside of the drum 11; An additive feed port 7 is set on the middle side wall of the shell, and the additive feed port 7 communicates with the feeding device 8; a discharge port 15 is set on the lower side wall of the shell. The stirring device includes a stirring paddle and a stirring driving mechanism, the stirring paddle is installed at the bottom of the housing, and the control ends of the rotary driving mechanism and the stirring driving mechanism are connected to the control system 6 .

Further, the above-mentioned pulverizing mechanism includes a first pulverizing mechanism 2 and a second pulverizing mechanism 4, the first pulverizing mechanism 2 includes a rotating shaft 5 and blades, and a plurality of blades are arranged on the rotating shaft 5, so that the rotating shaft 5 forms a rotating stabbing stick, and the rotating stabbing stick It is arranged laterally, and its two ends form a rotational fit with the inner wall of the housing, and the rotary goad is driven to rotate by the rotary drive mechanism through the speed change mechanism to achieve crushing of the PVB. Preferably, the above-mentioned rotary drive mechanism includes a rotary motor 18 and a transmission mechanism. The rotary motor 18 directly drives the drum 11 to rotate at a slower speed through the transmission mechanism. The higher speed drives the rotating goad into rapid rotation. The above-mentioned second pulverizing mechanism 4 includes extruding gears and driving motors 16 arranged in pairs on the inner wall of the drum 11, and the driving motor 16 drives two adjacent extruding gears to reversely rotate through the transmission mechanism to realize the crushing of PVB. Crushing, the control end of the drive motor 16 is connected with the control system 6.

Still further, a metering device 13 is arranged below the above-mentioned collecting device 12, and the metering device 13 includes a metering device housing and a metering sensor therein, and the metering sensor is connected with the control system 6, and a metering feed inlet is set on the top of the metering device housing to measure A metering outlet is provided at the bottom of the device housing, the collecting device communicates with the metering inlet, and the metering outlet communicates with the feeding device 8 below it.

Still further, the above-mentioned collecting device 12 is a funnel-shaped collecting pan with a material leakage hole in the middle, and the feeding device 8 adopts a shower structure, and a feeding hole and a number of spraying holes are respectively arranged on the top surface and the bottom surface of the feeding device 8, so that The leakage hole is communicated with the feed hole through a pipeline, and the additive feed port 7 is communicated with the leakage hole through a pipeline.

Furthermore, the above-mentioned housing is a vertical square cylinder or a vertical cylinder, a valve 14 is provided at the outlet 15 of the housing, the control system 6 is arranged on the inner side wall of the housing, and the valve 14 is controlled by the control system 6. Control on and off.

Preferably, the above-mentioned stirring device includes three (or more) stirring paddles, the stirring paddles include stirring blades 10 and the stirring shaft 9, the stirring drive mechanism includes a stirring motor 17 and a transmission shaft, and the transmission shaft is connected with the transmission shaft respectively through the transmission mechanism. The three stirring shafts 9 are connected, and the control system 6 controls the rotation speed of the stirring motor 17 to realize the control of the rotation rate of the stirring shafts 9 .

The PVB feed port 1 is located on the left side of the drum 11. When in use, the PVB feed port 1 can pass the PVB material into the crushing device. The PVB material added to the drum 11 is initially crushed by the first crushing mechanism 2, and then passed through the second crushing mechanism. The second crushing mechanism 4 is further crushed. Through the above crushing process, the PVB is crushed into a suitable particle size. The qualified PVB powder after crushing can be rotated by the revolving shaft 5 of the drum 11, and the PVB with a suitable particle size is rotated and screened 3 It is discharged by the action, falls into the collection device 12 below, and then passes through the metering system 13 below. The control system 6 adds the required amount to the feeding device 8 below, and then evenly feeds it into the stirring device below.

Additives such as plasticizers and additives enter from the additive feed port 7, and are uniformly added to the stirring device below through a shower structure feeding device 8, and the stirring rate is adjusted by the control system 6, which can fully realize PVB and plasticizer. After the mixing with additives is completed, the control system 6 controls to open the valve 14, and the material can be discharged to the next process through the discharge port 15.

The utility model realizes uniform feeding and uniform stirring in one device at the same time, contributes to the improvement of the quality of subsequent products, and saves the occupied area.

The above description is not a limitation to the present utility model, and the present utility model is not limited to the above-mentioned examples. Any changes, modifications, additions or replacements made within the essential scope of the present utility model by those of ordinary skill in the art are also acceptable. Should belong to the protection scope of the present utility model.

Claims (10)

1. The utility model provides a PVB smashes agitating unit, includes shell, reducing mechanism, collection device and control system, its characterized in that still includes feeding device and agitating unit, reducing mechanism, collection device, feeding device and agitating unit from the top down set gradually in the shell, reducing mechanism and rotary driving mechanism in cylinder, the cylinder transversely sets up, and its both ends mouth with the shell forms normal running fit, by rotary driving mechanism drives the cylinder rotates, set up the screen cloth on the lateral wall at cylinder middle part, collection device sets up the below at cylinder middle part, collection device rather than the below the feeding device intercommunication, set up the PVB feed inlet on the upper portion lateral wall of shell, the PVB feed inlet with the inside intercommunication of cylinder, set up the additive feed inlet on the middle part lateral wall of shell, the additive feed inlet with the feeding device intercommunication, set up the discharge gate on the lower part lateral wall of shell, agitating unit includes stirring rake and stirring actuating mechanism, the stirring rake is installed the bottom of shell, rotary driving mechanism and stirring actuating mechanism's control end all with control system connects.

2. The PVB smashes agitating unit of claim 1, wherein rubbing crusher constructs including first rubbing crusher structure and second rubbing crusher structure, first rubbing crusher constructs including pivot and blade, set up a plurality of blades in the pivot, make the pivot form and rotate the thorn rod, rotate thorn rod and transversely set up, and its both ends with the shell inner wall forms normal running fit, and by rotary drive constructs through the gear change mechanism drive rotate thorn rod rotation and realize smashing to hitting of PVB, second rubbing crusher constructs including setting up in pairs extrusion gear and the driving motor on the cylinder inner wall, by driving motor drives two adjacent through drive mechanism extrusion gear antiport realizes smashing to rolling of PVB, driving motor's control end all with control system connects.

3. A PVB crushing and stirring device according to claim 1 or 2, wherein a metering device is arranged below the collecting device, the metering device comprises a metering device shell and a metering sensor therein, the metering sensor is connected with the control system, a metering feed inlet is arranged at the top of the metering device shell, a metering discharge outlet is arranged at the bottom of the metering device shell, the collecting device is communicated with the metering feed inlet, and the metering discharge outlet is communicated with the feeding device below the collecting device.

4. The PVB crushing and stirring device of claim 1 or 2, wherein the collecting device is a funnel-shaped collecting tray, the middle of the collecting device is a material leaking hole, the feeding device adopts a shower structure, the top surface and the bottom surface of the feeding device are respectively provided with a feeding hole and a plurality of spraying holes, the material leaking hole is communicated with the feeding hole through a pipeline, and the additive feeding hole is communicated with the material leaking hole through a pipeline.

5. The PVB crushing and stirring device of claim 3, wherein the collecting device is a funnel-shaped collecting tray, the middle of the collecting device is a material leaking hole, the feeding device adopts a shower structure, the top surface and the bottom surface of the feeding device are respectively provided with a feeding hole and a plurality of spraying holes, the material leaking hole is communicated with the feeding hole through a pipeline, and the additive feeding hole is communicated with the material leaking hole through a pipeline.

6. The PVB crushing stirring device of claim 1 or 2, wherein the number of the stirring paddles is at least 2, the stirring paddles comprise stirring blades and stirring rotating shafts, the stirring driving mechanism comprises a stirring motor and a transmission shaft, the transmission shaft is connected with the stirring rotating shafts, and the control system controls the rotating speed of the stirring motor.

7. The PVB crushing stirring device of claim 3, wherein the number of the stirring paddles is at least 2, the stirring paddles comprise stirring blades and stirring rotating shafts, the stirring driving mechanism comprises a stirring motor and a transmission shaft, the transmission shaft is connected with the stirring rotating shafts, and the control system controls the rotating speed of the stirring motor.

8. The PVB crushing stirring device of claim 5, wherein the number of the stirring paddles is at least 2, the stirring paddles comprise stirring blades and stirring rotating shafts, the stirring driving mechanism comprises a stirring motor and a transmission shaft, the transmission shaft is connected with the stirring rotating shafts, and the control system controls the rotating speed of the stirring motor.

9. A PVB crushing and stirring device as set forth in claim 1 or 2, wherein the housing is a vertical square cylinder or a vertical cylinder, a valve is arranged at the outlet of the housing, and the control system is arranged on the inner side wall of the housing.

10. The PVB crushing and stirring device of claim 8, wherein the housing is a vertical square cylinder or a vertical cylinder, a valve is arranged at the discharge port of the housing, and the control system is arranged on the inner side wall of the housing.

Images