A small material adding device with a screening structure

Abstract

The utility model discloses a small material adding device with screening structure, include: annular pipe, fixed mounting is in the inner wall of the reaction cauldron body, the lower surface of annular pipe evenly has multiple groups of drop adding mouth, the upper surface of annular pipe is connected with second connecting pipe, and the upper end of second connecting pipe extends to the outside of sealing cap, the utility model discloses through the design of annular pipe, second connecting pipe, hopper and first connecting pipe etc.

Description

Technical Field

[0001] This utility model relates to the technical field of PVAC emulsion production equipment, specifically a small material addition device with a sieving structure. Background Technology

[0002] In the production of PVAC emulsions, plasticizers, as a key component, need to be added to the reactor in a specific ratio. Current methods often involve direct feeding via a funnel, relying on valves to control the flow rate. However, upon contact with the PVAC emulsion, the plasticizer undergoes a rapid molecular hinge reaction. If uniform dispersion is not achieved quickly enough, localized molecular aggregation can easily form soft, small particles. In practice, even with repeated valve adjustments to control the flow rate, the formation of these particles cannot be completely avoided. This not only affects the stability of the emulsion system but also leads to fluctuations in the performance of subsequent products. Therefore, we need to propose a component addition device with a sieving structure. Utility Model Content

[0003] The purpose of this invention is to provide a small material addition device with a sieving structure to solve the problem mentioned in the background art that if the plasticizer fails to achieve uniform dispersion in a short time after contact with PVAC emulsion, it is easy to form soft small particles due to local molecular aggregation.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A small material addition device with a sieving structure includes: a reaction vessel body with a sealing cap fixedly installed on its top; an annular tube fixedly installed on the inner wall of the reaction vessel body, the lower surface of the annular tube being uniformly connected to multiple sets of drip inlets, the upper surface of the annular tube being connected to a second connecting tube, the upper end of the second connecting tube extending to the outside of the sealing cap; and a funnel with a first connecting tube connected to its bottom, the first connecting tube being threaded onto the second connecting tube for cooperating with the first connecting tube and the second connecting tube to deliver plasticizer into the annular tube.

[0006] Preferably, the upper end of the second connecting pipe is provided with a sealing gasket, and the lower end of the first connecting pipe is pressed against the sealing gasket to seal the connection between the second connecting pipe and the first connecting pipe.

[0007] Preferably, a feeding valve is provided on the first connecting pipe.

[0008] Preferably, a drive motor is fixedly installed on the top of the sealing cover, and a rotating rod is fixedly connected to the output shaft of the drive motor through a coupling. A conical block is fixedly connected to the lower end of the rotating rod. A support frame is fixedly connected to the inner wall of the reaction vessel body. A stirring rod is movably installed in the support frame. A conical groove adapted to the conical block is opened at the upper end of the stirring rod, and the conical block is inserted into the conical groove.

[0009] Preferably, the bottom of the reactor body is connected to a discharge pipe, and a discharge valve is provided on the discharge pipe.

[0010] Preferably, a water tank containing rinsing water is fixedly installed on the top of the sealing cover, an electric heater for heating the rinsing water is fixedly installed on the top of the water tank, a water pump is fixedly installed on the top of the water tank, and a delivery pipe is connected to both the inlet and outlet of the water pump. The delivery pipe at the inlet of the water pump extends into the interior of the water tank, and a corrugated pipe is connected to the delivery pipe at the outlet of the water pump. One end of the corrugated pipe extends to the top of the funnel.

[0011] Preferably, the top of the water tank is connected to a second water inlet pipe for adding flushing water into the water tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a structure consisting of an annular tube, a second connecting tube, a funnel, and a first connecting tube. By installing the annular tube on the inner wall of the reactor and connecting it to the funnel via the second and first connecting tubes, the plasticizer enters the annular tube through the funnel, the first connecting tube, and the second connecting tube. Then, through multiple sets of dripping ports at the bottom of the annular tube, the plasticizer is simultaneously dripped into the PVAC emulsion inside the reactor. This avoids the localized aggregation problem associated with traditional funnel feeding, reducing the formation of soft small particles caused by molecular hinge reactions from the source, and effectively improving production efficiency and finished product qualification rate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the stirring rod and support frame of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the first connecting pipe and the annular pipe of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the water tank, conveying pipe and corrugated pipe of this utility model.

[0019] In the diagram: 1. Reactor body; 2. Sealing cover; 3. Drive motor; 4. Rotating rod; 5. Conical block; 6. Support frame; 7. Stirring rod; 8. Conical groove; 9. First water supply pipe; 10. Funnel; 11. First connecting pipe; 12. Feeding valve; 13. Annular pipe; 14. Second connecting pipe; 15. Dropping port; 16. Sealing gasket; 17. Discharge pipe; 18. Discharge valve; 19. Water tank; 20. Second water supply pipe; 21. Electric heater; 22. Water pump; 23. Conveying pipe; 24. Corrugated pipe; 25. Temperature sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution:

[0022] A small material adding device with a screening structure includes:

[0023] The reactor body 1 has a sealing cover 2 fixedly installed on its top;

[0024] An annular tube 13 is fixedly installed on the inner wall of the reactor body 1. Multiple sets of drip inlets 15 are uniformly connected to the lower surface of the annular tube 13. A second connecting tube 14 is connected to the upper surface of the annular tube 13. The upper end of the second connecting tube 14 extends to the outside of the sealing cover 2.

[0025] The funnel 10 has a first connecting pipe 11 connected to its bottom. The first connecting pipe 11 is threaded onto the second connecting pipe 14 and is used to cooperate with the first connecting pipe 11 and the second connecting pipe 14 to deliver plasticizer into the annular pipe 13.

[0026] The top of the sealing cap 2 is connected to a first water supply pipe 9, through which PVAC emulsion can be added to the interior of the reactor body 1.

[0027] In an optional embodiment: such as Figure 4 As shown, the upper end of the second connecting pipe 14 is provided with a sealing gasket 16, and the lower end of the first connecting pipe 11 is pressed against the sealing gasket 16 to seal the connection between the second connecting pipe 14 and the first connecting pipe 11.

[0028] It should be noted that the sealing gasket 16 is used to seal the connection between the second connecting pipe 14 and the first connecting pipe 11, thereby improving the sealing effect between the second connecting pipe 14 and the first connecting pipe 11 and preventing liquid from leaking out from the connection between the second connecting pipe 14 and the first connecting pipe 11.

[0029] In an optional embodiment: such as Figure 4 As shown, a feeding valve 12 is provided on the first connecting pipe 11.

[0030] It should be noted that by setting the feeding valve 12, the efficiency of plasticizer feeding in the funnel 10 can be adjusted by controlling the feeding valve 12.

[0031] In an optional embodiment: such as Figure 2 and Figure 3 As shown, a drive motor 3 is fixedly installed on the top of the sealing cover 2. The output shaft of the drive motor 3 is fixedly connected to a rotating rod 4 via a coupling. A conical block 5 is fixedly connected to the lower end of the rotating rod 4. A support frame 6 is fixedly connected to the inner wall of the reactor body 1. A stirring rod 7 is movably installed inside the support frame 6. A conical groove 8 that matches the conical block 5 is opened at the upper end of the stirring rod 7. The conical block 5 is inserted into the conical groove 8.

[0032] It should be noted that by cooperating with the drive motor 3, the rotating rod 4, the conical block 5 and the conical groove 8, the stirring rod 7 can be driven to rotate, so that the stirring rod 7 can stir the plasticizer and PVAC emulsion. The plasticizer will be rapidly dispersed into the PVAC emulsion and interact with the main agent to improve the plasticity of the material.

[0033] Furthermore, the conical block 5 and conical groove 8 allow the rotating rod 4 and stirring rod 7 to be disassembled and separated, so that the stirring rod 7 can be maintained or the inside of the reaction vessel 1 can be cleaned after the sealing cover 2 is removed.

[0034] In an optional embodiment: such as Figure 1 and Figure 2 As shown, the bottom of the reactor body 1 is connected to a discharge pipe 17, and a discharge valve 18 is installed on the discharge pipe 17.

[0035] It should be noted that by opening the discharge valve 18, the PVAC emulsion in the reactor body 1 is discharged through the discharge pipe 17.

[0036] In an optional embodiment: such as Figure 1 , Figure 2 and Figure 5As shown, a water tank 19 containing rinsing water is fixedly installed on the top of the sealing cover 2. An electric heater 21 for heating the rinsing water is fixedly installed on the top of the water tank 19. A water pump 22 is fixedly installed on the top of the water tank 19. Both the inlet and outlet ends of the water pump 22 are connected to a delivery pipe 23. The delivery pipe 23 at the inlet end of the water pump 22 extends into the interior of the water tank 19. A corrugated pipe 24 is connected to the delivery pipe 23 at the outlet end of the water pump 22. One end of the corrugated pipe 24 extends above the funnel 10.

[0037] It should be noted that the rinsing water in the water tank 19 is heated by the electric heater 21, and the heated rinsing water in the water tank 19 is delivered to the funnel 10 by the water pump 22 and the delivery pipe 23. The rinsing water delivered to the funnel 10 enters the annular pipe 13 through the first connecting pipe 11 and the second connecting pipe 14 to rinse the residual plasticizer in the funnel 10, the first connecting pipe 11, the second connecting pipe 14 and the annular pipe 13, to prevent the plasticizer residue from solidifying, to keep the annular pipe 13 and the drip port 15 unobstructed, to prevent blockage from affecting the dripping effect, and to ensure that the material is evenly dispersed each time it is added.

[0038] In an optional embodiment: such as Figure 5 As shown, the top of the water tank 19 is connected to a second water inlet pipe 20 for adding flushing water into the water tank 19.

[0039] It should be noted that flushing water is added to the water tank 19 through the second water inlet pipe 20;

[0040] A temperature sensor 25 for detecting the heated rinsing water is fixedly installed inside the water tank 19. A controller is fixedly installed on the side of the reactor body 1. The drive motor 3, electric heater 21, water pump 22 and temperature sensor 25 are all electrically connected to the controller. The controller starts the electric heater 21 to heat the rinsing water in the water tank 19. The temperature sensor 25 monitors the temperature of the rinsing water and transmits the real-time temperature data accurately to the controller. After receiving the data, the controller will quickly analyze and judge. Once it finds that the rinsing water temperature is close to the preset high threshold, it will immediately issue a control command to control the electric heater 21 to adjust the heating power or even stop heating, thereby effectively preventing the rinsing water temperature from being too high.

[0041] The usage process of this utility model is as follows: When it is necessary to add plasticizer into the reactor body 1, first add plasticizer into the funnel 10, open the feeding valve 12, so that the plasticizer in the funnel 10 enters the annular tube 13 through the first connecting pipe 11 and the second connecting pipe 14. The plasticizer entering the annular tube 13 is simultaneously added to the PVAC emulsion in the reactor body 1 through multiple sets of dripping ports 15, avoiding the local aggregation problem of traditional reactor body 1 feeding, reducing the generation of soft small particles caused by molecular hinge reaction from the source, and effectively improving production efficiency and finished product qualification rate.

[0042] When the plasticizer is added to the reactor body 1, the electric heater 21 and the drive motor 3 are started. The electric heater 21 heats the rinsing water inside the water tank 19. The output shaft of the drive motor 3 drives the rotating rod 4 to rotate. When the rotating rod 4 rotates, it drives the stirring rod 7 to rotate through the conical block 5 and the conical groove 8. When the stirring rod 7 rotates, it stirs the plasticizer and PVAC emulsion. The plasticizer added to the reactor body 1 will quickly disperse into the PVAC emulsion and interact with the main agent to improve the plasticity of the material.

[0043] After the plasticizer is added, a certain amount of hot water needs to be added to rinse the drip inlet 15. By starting the water pump 22, the water pump 22 draws the heated rinsing water from the water tank 19 through the delivery pipe 23. The drawn rinsing water is delivered to the funnel 10 through the delivery pipe 23 and the corrugated pipe 24. The rinsing water delivered to the funnel 10 enters the annular pipe 13 through the first connecting pipe 11 and the second connecting pipe 14 to rinse the residual plasticizer in the funnel 10, the first connecting pipe 11, the second connecting pipe 14 and the annular pipe 13 to prevent plasticizer residue.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small material adding device with a screening structure, characterized in that, include: The reactor body (1) has a sealing cover (2) fixedly installed on its top; An annular tube (13) is fixedly installed on the inner wall of the reactor body (1). The lower surface of the annular tube (13) is uniformly connected with multiple sets of drip inlets (15). The upper surface of the annular tube (13) is connected with a second connecting tube (14). The upper end of the second connecting tube (14) extends to the outside of the sealing cap (2). The funnel (10) has a first connecting pipe (11) connected to its bottom. The first connecting pipe (11) is threaded onto the second connecting pipe (14) and is used to cooperate with the first connecting pipe (11) and the second connecting pipe (14) to deliver plasticizer into the annular pipe (13).

2. The small material adding device with a screening structure according to claim 1, characterized in that: The upper end of the second connecting pipe (14) is provided with a sealing gasket (16), and the lower end of the first connecting pipe (11) is pressed against the sealing gasket (16) to seal the connection between the second connecting pipe (14) and the first connecting pipe (11).

3. The small material adding device with a screening structure according to claim 1, characterized in that: A feeding valve (12) is provided on the first connecting pipe (11).

4. The small material adding device with a screening structure according to claim 1, characterized in that: A drive motor (3) is fixedly installed on the top of the sealing cover (2). The output shaft of the drive motor (3) is fixedly connected to a rotating rod (4) via a coupling. A conical block (5) is fixedly connected to the lower end of the rotating rod (4). A support frame (6) is fixedly connected to the inner wall of the reactor body (1). A stirring rod (7) is movably installed inside the support frame (6). A conical groove (8) adapted to the conical block (5) is opened at the upper end of the stirring rod (7). The conical block (5) is inserted into the conical groove (8).

5. A small material adding device with a screening structure according to claim 1, characterized in that: The bottom of the reactor body (1) is connected to a discharge pipe (17), and a discharge valve (18) is provided on the discharge pipe (17).

6. A small material adding device with a screening structure according to claim 1, characterized in that: A water tank (19) containing rinsing water is fixedly installed on the top of the sealing cover (2). An electric heater (21) for heating the rinsing water is fixedly installed on the top of the water tank (19). A water pump (22) is fixedly installed on the top of the water tank (19). The inlet and outlet of the water pump (22) are both connected to a delivery pipe (23). The delivery pipe (23) at the inlet of the water pump (22) extends into the interior of the water tank (19). A corrugated pipe (24) is connected to the delivery pipe (23) at the outlet of the water pump (22). One end of the corrugated pipe (24) extends above the funnel (10).

7. A small material adding device with a screening structure according to claim 6, characterized in that: The top of the water tank (19) is connected to a second water inlet pipe (20) for adding flushing water into the water tank (19).

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