High speed dispersion device for preparing non-phenolic heat sensitive developers

Abstract

The utility model discloses a high -speed dispersion device for preparing non phenol heat -sensitive developer, including dispersion bin, the spiral cooling pipe is wound and is established on the dispersion bin outer wall, and the dispersion bin fixed mounting is in the rack side part, and the dispersion bin top is equipped with the feed inlet of funnel -shaped structure, and the inside installation of dispersion bin and feed inlet has the pivot that can move in lifting, and the bottom end of pivot is installed the cutter head, and the outer wall on pivot main body lower extreme is equipped with the resistance flow screw thread, pivot is along the vertical direction and is worn in the speed reducer, and the top of pivot is linked with the worm screw elevator through the connecting piece. The high -speed dispersion device provided by the utility model can control material dispersion temperature well, ensures product stability, effectively solves the problem that liquid splashes, and can realize efficient uniform dispersion.

Description

Technical Field

[0001] This utility model relates to a high-speed dispersion device for preparing non-phenolic thermosensitive colorimetric agents, belonging to the field of thermosensitive colorimetric agent production technology. Background Technology

[0002] Traditional phenolic color developers, such as bisphenol A, pose potential health and environmental risks, and their use is strictly limited or prohibited in many fields, especially in food packaging and thermal paper for receipts. Therefore, the development and application of non-phenolic thermal color developers has become an important research direction and market trend.

[0003] Non-phenolic color developers, whose active ingredients such as colorless dyes, color developers, and sensitizers, are usually in the form of solid particles. These solid particles need to be uniformly dispersed in a solvent or binder using a disperser to form a stable, highly homogeneous slurry, which is then coated onto the base paper.

[0004] Traditional high-speed dispersers come in various structural styles, such as the double-disc high-speed disperser disclosed in CN201110201693.7 and the electrically driven rotary high-speed disperser disclosed in CN201720059428.2. As a general-purpose device, ordinary high-speed dispersers have the following inherent drawbacks when processing heat-sensitive or easily reactive chemical substances: Heat buildup leads to product failure: During high-speed dispersion, the intense friction and shearing between the blade and the material will generate a lot of heat. For non-phenolic heat-sensitive color developers, once the temperature exceeds its color development initiation temperature, the color development reaction will occur prematurely during the processing stage, causing the product to change color slightly or fail completely, resulting in scrap.

[0005] Material splashing causes losses and pollution: Under high-speed rotation, materials tend to rise along the shaft and splash out from the feed inlet, which not only wastes materials and affects the accuracy of the proportioning, but also pollutes the equipment and the environment.

[0006] Controlling the lifting of the cutter head is difficult: In order to achieve efficient and uniform dispersion, the height of the cutter head of the disperser is usually adjusted by a hydraulic device. However, hydraulic devices are generally inconvenient to install and difficult to control.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] This invention addresses the shortcomings of the prior art by providing a high-speed dispersion device for preparing non-phenolic thermosensitive colorimetric agents. It can effectively control the material dispersion temperature, ensure product stability, effectively solve the problem of liquid splashing, and achieve efficient and uniform dispersion.

[0009] To solve the above technical problems, the present invention adopts the following technical solution: A high-speed dispersion device for preparing non-phenolic thermosensitive colorimetric agents includes a dispersion chamber with a spiral cooling tube wound around its outer wall. The dispersion chamber is fixedly installed on the side of the frame. The top of the dispersion chamber has a funnel-shaped feed inlet. A rotating shaft capable of lifting and lowering is installed inside the dispersion chamber and the feed inlet. A cutter head is installed at the bottom of the rotating shaft. The outer wall of the lower end of the rotating shaft body is provided with a flow-blocking thread. The rotating shaft passes vertically through a reducer, and the top of the rotating shaft is connected to a worm gear screw jack through a connector.

[0010] Furthermore, the inner diameter of the connection between the bottom of the feed inlet and the dispersion chamber is slightly larger than the outer diameter of the cutter head.

[0011] Furthermore, the direction of rotation of the flow-blocking thread is opposite to that of the shaft.

[0012] Furthermore, the dispersion chamber is connected to the frame by two hoops set at the top and bottom, and the spiral cooling pipe is positioned by the two hoops at the top and bottom.

[0013] Furthermore, a discharge valve and a discharge pipe are installed sequentially at the bottom of the dispersion bin.

[0014] Furthermore, the reducer is a horizontal hollow reducer, which is fixedly installed on the top of the frame, and the shaft is connected to the reducer via a flat key.

[0015] Furthermore, a support sleeve is installed on the main body of the rotating shaft, and the support sleeve is fixed to the top of the frame.

[0016] Furthermore, the connector is fixedly installed at the bottom end of the screw of the worm gear screw jack, and the connector is rotatably connected to the top of the rotating shaft.

[0017] Furthermore, the worm gear screw jack is mounted above the reducer via a support arm.

[0018] Furthermore, there are multiple support arms.

[0019] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: The spiral cooling pipe tightly wraps around the dispersion chamber, and the heat generated during dispersion is continuously and efficiently carried away by circulating cooling water. This allows the working temperature to be precisely controlled below the color development initiation temperature, fundamentally avoiding the problem of premature color development and product failure caused by processing heat. The dual anti-splash design is achieved through radial sealing and axial flow obstruction. The narrow channel at the bottom of the feed inlet forms a physical barrier above the cutter head, effectively preventing material from splashing upwards. The reverse flow obstruction thread generates a downward pumping reaction force on the liquid trying to climb up the shaft, pushing it back into the dispersion chamber, reducing material loss and ensuring the accuracy of the formulation ratio. By adopting the worm gear screw jack and the rotational connection of the transmission system, the precise and stable lifting of the shaft and cutter head during operation is achieved, realizing the efficient and uniform dispersion of materials.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the distribution warehouse.

[0022] In the diagram, 1-frame, 2-dispersion chamber, 3-feed inlet, 4-spiral cooling pipe, 5-rotating shaft, 6-flow-blocking thread, 7-cutter disc, 8-discharge valve, 9-discharge pipe, 10-reducer, 11-support sleeve, 12-worm gear screw jack, 13-support arm, 14-connector. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a high-speed dispersion device for preparing non-phenolic thermosensitive colorimetric agents, including a dispersion chamber 2, which is fixedly installed on the side of the frame 1. The top of the dispersion chamber 2 is provided with a funnel-shaped feed inlet 3. The dispersion chamber 2 and the feed inlet 3 are equipped with a rotating shaft 5 that can be lifted and lowered. A cutter disc 7 is installed at the bottom of the rotating shaft 5 and is located in the inner cavity of the dispersion chamber 2.

[0025] The inner diameter of the connection between the bottom of the feed inlet 3 and the dispersion chamber 2 is slightly larger than the outer diameter of the cutter disc 7. The cutter disc 7 can thus be installed into the inner cavity of the dispersion chamber 2, and can also prevent the liquid from splashing during the dispersion process.

[0026] The outer wall at the lower end of the main body of the rotating shaft 5 is provided with a flow-blocking thread 6. The direction of rotation of the flow-blocking thread 6 is opposite to that of the rotating shaft 5. By setting the flow-blocking thread 6, the liquid material is prevented from moving upward along the axial direction and splashing.

[0027] The dispersion chamber 2 is connected to the frame 1 by two hoop rings set at the top and bottom. A spiral cooling pipe 4 is wound around the outer wall of the dispersion chamber 2, and the position of the spiral cooling pipe 4 is defined by the two hoop rings at the top and bottom.

[0028] The spiral cooling pipe 4 can be circulated with cooling water to maintain the low temperature environment in the dispersion chamber 2, so as to prevent the heat generated during the dispersion process from exceeding the color development start temperature of the color developer, and avoid the color developer from reacting prematurely during the processing stage, resulting in slight discoloration or failure.

[0029] The bottom of the dispersion chamber 2 is sequentially equipped with a discharge valve 8 and a discharge pipe 9. After the liquid material in the dispersion chamber 2 is dispersed, it is discharged through the discharge valve 8 and the discharge pipe 9.

[0030] The rotating shaft 5 is vertically inserted into the reducer 10. The reducer 10 is a horizontal hollow reducer, which is fixedly installed on the top of the frame 1. The rotating shaft 5 and the reducer 10 are connected by a flat key. The reducer 10 can transmit torque to the rotating shaft 5, and the rotating shaft 5 can move up and down along the inside of the reducer 10.

[0031] A support sleeve 11 is installed on the main body of the rotating shaft 5. The support sleeve 11 is fixed inside the top of the frame 1 and can provide rotational support for the rotating shaft 5.

[0032] The top end of the rotating shaft 5 is connected to the worm gear screw jack 12 via a connector 14. The worm gear screw jack 12 is mounted above the reducer 10 via support arms 13. There are multiple support arms 13.

[0033] Connector 14 is fixedly installed at the bottom end of the screw of the worm gear screw jack 12, and connector 14 is rotatably connected to the top of the rotating shaft 5. The screw of the worm gear screw jack 12 can drive the rotating shaft 5 to perform lifting and lowering actions, but there is no torque transmission between the two.

[0034] The specific working principle of this utility model is as follows: The material is fed into the dispersion chamber 2 through the feed inlet 3. The reducer 10 is started to drive the rotating shaft 5 and the cutter head 7 to rotate at high speed, performing high-speed shearing and dispersion of the material. At the same time, the worm gear screw jack 12 can drive the cutter head 7 to move up and down in the inner cavity of the dispersion chamber 2 to ensure that the dispersion process is efficient and uniform. After uniform dispersion, the discharge valve 8 at the bottom is opened to discharge the finished liquid material for subsequent processes.

[0035] Throughout the dispersion process, the spiral cooling pipe 4 operates continuously to ensure that the generated heat is carried away in time, keeping the temperature inside the chamber below the critical temperature of the color developer.

[0036] The special structure of the feed inlet 3 and the reverse flow-blocking thread 6 on the rotating shaft 5 work together to effectively prevent liquid splashing, ensuring a clean production environment and accurate material proportioning.

[0037] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric reagents, comprising a dispersion chamber (2), characterized in that: A spiral cooling pipe (4) is wound around the outer wall of the dispersion chamber (2). The dispersion chamber (2) is fixedly installed on the side of the frame (1). The top of the dispersion chamber (2) is provided with a funnel-shaped feed inlet (3). The dispersion chamber (2) and the feed inlet (3) are equipped with a rotating shaft (5) that can move up and down. A cutter disc (7) is installed at the bottom of the rotating shaft (5). A flow-blocking thread (6) is provided on the outer wall of the lower end of the rotating shaft (5). The rotating shaft (5) is installed vertically in the reducer (10). The top of the rotating shaft (5) is connected to the worm gear screw jack (12) through the connector (14).

2. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The inner diameter of the bottom of the feed inlet (3) at the connection with the dispersion bin (2) is slightly larger than the outer diameter of the cutter head (7).

3. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric reagents as described in claim 1, characterized in that: The direction of rotation of the flow-blocking thread (6) is opposite to that of the rotating shaft (5).

4. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The dispersion chamber (2) is connected to the frame (1) by two hoops set at the top and bottom, and the spiral cooling pipe (4) is positioned by the two hoops at the top and bottom.

5. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The bottom of the dispersion bin (2) is equipped with a discharge valve (8) and a discharge pipe (9) in sequence.

6. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The reducer (10) is a horizontal hollow reducer, which is fixedly installed on the top of the frame (1), and the shaft (5) is connected to the reducer (10) by a flat key.

7. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric reagents as described in claim 1, characterized in that: A support sleeve (11) is installed on the main body of the rotating shaft (5), and the support sleeve (11) is fixed to the top of the frame (1).

8. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The connector (14) is fixedly installed at the bottom end of the screw of the worm gear screw jack (12), and the connector (14) is rotatably connected to the top of the rotating shaft (5).

9. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 1, characterized in that: The worm gear screw jack (12) is mounted above the reducer (10) via a support arm (13).

10. The high-speed dispersion apparatus for preparing non-phenolic thermosensitive colorimetric agents as described in claim 9, characterized in that: The number of support arms (13) is multiple.

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