A self-dispersible pigment carbon black conveying structure for papermaking

Abstract

This utility model relates to the technical field of papermaking auxiliary material conveying equipment, specifically to a conveying structure for self-dispersing pigment carbon black used in papermaking. It includes a screw conveyor with a protective cover installed at its bottom. The input port of the protective cover is connected to the output port of the screw conveyor. A rotating disk is rotatably mounted at the output port of the protective cover, positioned opposite to the output port of the screw conveyor. Several baffles arranged in an equally spaced circular array are fixedly installed on the top of the rotating disk. This utility model achieves uniform dispersion of carbon black through the centrifugal effect of the rotating disk and baffles, improving the mixing effect with the pulp. The protective cover effectively seals the path of carbon black ejection, reducing dust pollution and meeting environmental protection requirements. The design of the support base and connecting rod enhances overall rigidity. The direct drive between the motor and the rotating disk ensures operational reliability. The protective top plate is removable, facilitating the cleaning of residual materials inside the screw conveyor.

Description

Technical Field

[0001] This utility model relates to the technical field of papermaking auxiliary material conveying equipment, specifically to a conveying structure for self-dispersing pigment carbon black used in papermaking. Background Technology

[0002] In the papermaking industry, carbon black, as an important colorant, needs to be uniformly dispersed in the pulp to ensure paper quality. Traditional carbon black conveying methods typically involve direct feeding using screw conveyors. However, due to the small size and easy dispersion of carbon black particles, this leads to severe dust pollution in the working environment and uneven dispersion, affecting subsequent mixing. Existing technologies have attempted to disperse carbon black through vibration or airflow, but these still suffer from problems such as complex structure, high energy consumption, and unsatisfactory dispersion effects.

[0003] Therefore, there is an urgent need for a conveying device that is simple in structure, stable in operation, and can effectively prevent carbon black from flying. Utility Model Content

[0004] The purpose of this invention is to provide a self-dispersing pigment carbon black conveying structure for papermaking. By using the centrifugal dispersion effect of the rotating disc and baffles, the problem of carbon black flying and uneven dispersion is solved. At the same time, the protective cover can effectively seal off dust and improve the working environment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides a conveying structure for self-dispersible pigment carbon black for papermaking, including a screw conveyor. A protective cover is installed at the bottom of the screw conveyor. The input port of the protective cover is connected to the output port of the screw conveyor. A rotating disk is rotatably installed at the output port of the protective cover. The rotating disk is positioned opposite to the output port of the screw conveyor. Several baffles arranged in an equally spaced ring array are fixedly installed on the top of the rotating disk.

[0007] Furthermore, a protective top plate is detachably installed on the top of the screw conveyor, and the gap between the protective top plate and the end of the screw conveyor is the input port of the screw conveyor.

[0008] Furthermore, a first support base is vertically fixedly installed at the bottom of the screw conveyor, and a second support base is vertically fixedly installed at one end of the screw conveyor. The bottom heights of the first and second support bases are flush and both lower than the bottom height of the protective cover.

[0009] Furthermore, a conical discharge pipe is fixedly installed at the output port of the screw conveyor. The conical discharge pipe is located inside the protective cover and is positioned opposite to the rotating disk.

[0010] Furthermore, a motor is provided at the center of the output port of the protective cover, and the output shaft of the motor is vertically fixed to the center of the bottom of the rotating disk.

[0011] Furthermore, a connecting rod is fixedly installed between the outer ring wall of the motor and the inner ring wall of the protective cover, and the tops of both connecting rods are tapered.

[0012] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0013] High-efficiency dispersion: The centrifugal action of the rotating disc and baffles achieves uniform dispersion of carbon black, improving the mixing effect with pulp.

[0014] Anti-dust design: The protective cover effectively seals off the path of carbon black ejection, reducing dust pollution and meeting environmental protection requirements.

[0015] Stable structure: The design of the support base and connecting rod enhances the overall rigidity, and the direct drive between the motor and the rotating disk ensures operational reliability.

[0016] Easy maintenance: The protective top plate is removable, making it easy to clean residual materials inside the screw conveyor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the rotating disk and the stop bar of this utility model.

[0021] The labels in the diagram represent:

[0022] 1. Screw conveyor; 11. First support base; 12. Second support base; 13. Conical feed pipe;

[0023] 2. Protective cover; 21. Motor; 22. Connecting rod; 23. Rotary disk; 24. Stop bar. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Example 1

[0027] Reference Figure 1-3 This is the first embodiment of the present invention, which discloses a self-dispersible pigment carbon black conveying structure for papermaking, including a screw conveyor 1, a protective cover 2 installed at the bottom of the screw conveyor 1, the input port of the protective cover 2 being connected to the output port of the screw conveyor 1, a rotating disk 23 being rotatably arranged at the output port of the protective cover 2, the rotating disk 23 being positioned opposite to the output port of the screw conveyor 1, and a plurality of baffles 24 arranged in an equally spaced ring array being fixedly installed on the top of the rotating disk 23.

[0028] The screw conveyor 1 is made of 304 stainless steel, with a conveying capacity of 0.5-1.5 t / h, a conveying length of 2-5 m, and a conveying speed of 30-60 rpm. The protective cover 2 is made of transparent polycarbonate material, with a thickness of 5-8 mm and a diameter of 600-800 mm. The rotating disc 23 has a diameter of 300-400 mm, a thickness of 10-15 mm, and is made of aluminum alloy. There are 6-8 baffles 24, with a height of 40-60 mm and a width of 15-20 mm, made of polyurethane material.

[0029] Example 2

[0030] Reference Figure 1-3 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a protective top plate is detachably installed on the top of the screw conveyor 1, the gap between the protective top plate and the end of the screw conveyor 1 is the input port of the screw conveyor 1, a first support seat 11 is vertically fixedly installed at the bottom of the screw conveyor 1, a second support seat 12 is vertically fixedly installed at one end of the screw conveyor 1, the bottom heights of the first support seat 11 and the second support seat 12 are flush and both are lower than the bottom height of the protective cover 2, and a conical discharge pipe 13 is fixedly installed at the output port of the screw conveyor 1. The conical discharge pipe 13 is set inside the protective cover 2 and is opposite to the position of the rotating disk 23.

[0031] A motor 21 is located at the center of the output port of the protective cover 2. Motor 21 is a 0.75kW servo motor with a speed range of 100-1000rpm, and its speed is regulated by a frequency converter. The output shaft of motor 21 is vertically fixed to the center of the bottom of the rotating disk 23. A connecting rod 22 is fixedly installed between the outer ring wall of motor 21 and the inner ring wall of the protective cover 2. The tops of both connecting rods 22 are tapered. The connecting rods 22 are made of 304 stainless steel round bars with a diameter of 20mm and a tapered angle of 30° to prevent the accumulation of pigment carbon black residue on the connecting rods 22. The discharge port diameter of the tapered discharge pipe 13 is 150-200mm, and the tapered angle is 60°. The first support base 11 and the second support base 12 are made of Q235 steel, with a height of 500-800mm, and have M16 anchor bolt mounting holes at the bottom.

[0032] Additional notes:

[0033] The motor power of screw conveyor 1 is 1.5-3kW, and the reduction ratio is 1:30-1:50;

[0034] The bottom of the protective cover 2 is equipped with a detachable dust collection port for easy collection of residual carbon black;

[0035] The rotating disk 23 and the output shaft of the motor 21 are connected by a keyway and are secured with a lock nut;

[0036] The baffle 24 is connected to the rotating disk 23 by M8 stainless steel bolts, which facilitates replacement.

[0037] The entire surface of the equipment is treated with anti-static coating, with a resistance value of less than 10^6Ω.

[0038] The remaining structure is the same as that in Example 1.

[0039] Detailed work process

[0040] Material input stage

[0041] Pigment carbon black enters the screw conveyor 1 through the input port at the top of the screw conveyor 1. The screw blades of the screw conveyor 1 rotate under the drive of the drive motor, pushing the carbon black material towards the output port.

[0042] Material feeding stage

[0043] After the carbon black reaches the output port of the screw conveyor 1, it falls vertically through the fixedly installed conical discharge pipe 13. The design of the conical discharge pipe 13 ensures that the material falls concentrated at the center of the rotating disk 23, avoiding uneven distribution.

[0044] Centrifugal dispersion stage

[0045] After the motor 21 starts, its output shaft drives the rotating disk 23 to rotate at high speed. Several baffles 24 fixed on the rotating disk 23 rotate synchronously with the rotating disk 23. After the carbon black material falls into the center of the rotating disk 23, it is thrown to all sides under the action of centrifugal force and is impacted and guided by the baffles 24 to achieve uniform dispersion.

[0046] Dust protection stage

[0047] The protective cover 2 completely surrounds the rotating disk 23 and the baffle 24, causing the ejected carbon black to fall in a directional manner under the constraint of the inner wall of the protective cover 2, preventing carbon black particles from flying everywhere. The closed structure of the protective cover 2 effectively reduces dust leakage and keeps the working environment clean.

[0048] Stable support and transmission

[0049] The motor 21 is fixed inside the protective cover 2 by the connecting rod 22 to ensure the stable operation of the rotating disk 23. The screw conveyor 1 is supported by the first support base 11 and the second support base 12, and the overall structure is stable, avoiding vibration from affecting the conveying and dispersing effect.

[0050] Maintenance and cleaning

[0051] The protective top plate of the screw conveyor 1 is removable, which facilitates regular cleaning of residual materials or maintenance of the internal structure, ensuring long-term stable operation of the equipment.

[0052] Key structural synergy

[0053] Screw conveyor 1: Responsible for the stable conveying of carbon black and ensuring continuous feeding.

[0054] Conical feed tube 13: guides carbon black to fall precisely to the center of rotating disk 23, improving dispersion efficiency.

[0055] Rotating disk 23 and baffle 24: They rotate at high speed under the drive of motor 21, and use centrifugal force to achieve uniform dispersion of carbon black.

[0056] Protective cover 2: Encloses the rotating area to prevent dust from escaping, meeting environmental protection requirements.

[0057] Two support bases and connecting rod 22: enhance overall rigidity and ensure the stability of equipment operation.

[0058] Final effect

[0059] This invention uses a screw conveyor 1 to transport carbon black and utilizes the centrifugal dispersion effect of a rotating disc 23 and baffles 24 to disperse the carbon black evenly and efficiently. At the same time, the protective cover 2 effectively suppresses dust flying. It is suitable for efficient and environmentally friendly carbon black conveying and dispersion operations in the papermaking industry.

[0060] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-dispersible pigment carbon black delivery structure for papermaking, comprising a screw conveyor (1), characterized in that, The bottom of the screw conveyor (1) is equipped with a protective cover (2). The input port of the protective cover (2) is connected to the output port of the screw conveyor (1). A rotating disk (23) is rotatably installed at the output port of the protective cover (2). The rotating disk (23) is positioned opposite to the output port of the screw conveyor (1). Several baffles (24) arranged in an equally spaced ring array are fixedly installed on the top of the rotating disk (23).

2. The self-dispersible pigment carbon black delivery structure for papermaking according to claim 1, characterized by The top of the screw conveyor (1) is detachably fitted with a protective top plate, and the gap between the protective top plate and the end of the screw conveyor (1) is the input port of the screw conveyor (1).

3. The self-dispersible pigment carbon black delivery structure for papermaking according to claim 1, characterized by The screw conveyor (1) is vertically fixed at the bottom with a first support base (11) and a second support base (12) is vertically fixed at one end of the screw conveyor (1). The bottom heights of the first support base (11) and the second support base (12) are flush and both are lower than the bottom height of the protective cover (2).

4. The self-dispersible pigment carbon black delivery structure for papermaking according to claim 1, characterized by A conical discharge pipe (13) is fixedly installed at the output port of the screw conveyor (1). The conical discharge pipe (13) is located inside the protective cover (2) and is positioned opposite to the rotating disk (23).

5. The self-dispersible pigment carbon black delivery structure for papermaking according to claim 1, wherein A motor (21) is provided at the center of the output port of the protective cover (2), and the output shaft of the motor (21) is vertically fixed to the center of the bottom of the rotating disk (23).

6. A self-dispersible pigment carbon black delivery structure for papermaking according to claim 5, characterized by A connecting rod (22) is fixedly installed between the outer ring wall of the motor (21) and the inner ring wall of the protective cover (2), and the top of both connecting rods (22) is set in a conical shape.

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