High-pigment special carbon black material circulating reflux granulator

Abstract

The utility model discloses a high-pigment special carbon black material circulating reflux pelletizer, relates to the technical field of pelletizers, and mainly aims to stabilize the carbon black material discharge flow of the pelletizer. According to the main technical scheme, the granulator for circulating reflux of the high-pigment special carbon black material is characterized in that a plurality of digging spoons are arranged on the circumference of the inner side of the rear end surface of a barrel; the spiral conveying mechanism comprises a tube shell and a spiral blade arranged in the tube shell, the tube shell is coaxially arranged in the barrel body, the side wall of the tube shell is sequentially provided with a feeding port, a feeding port, a returning port and a discharging port, the feeding port and the discharging port are located on the outer sides of the opposite end faces of the barrel body respectively, and the multiple digging spoons and the returning port are located on the same vertical plane; the annular partition plate is fixedly arranged in the pipe shell and used for isolating the second spiral blade from the third spiral blade.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a granulator for circulating and reflowing high-pigment special carbon black materials. Background Art

[0002] In the carbon black production process, there are two types of carbon black powder granulation: dry granulation and wet granulation. The wet granulation machine uses a large amount of granulation water, which is roughly equivalent to the carbon black output. The dry granulation machine forms granules through the mutual friction and extrusion of carbon black powder particles.

[0003] At present, the known carbon black dry granulator discharging equipment generally adopts a digging spoon group, which rotates with the granulator barrel. When it is lifted to a certain height, the carbon black particles slide from the digging spoon into the spiral inside the granulator and are transported out by the spiral.

[0004] However, for each scoop of carbon black material entering the granulator spiral, the ratio of discharge volume to reflux volume is unstable, resulting in unstable discharge speed of the granulator. Utility Model Content

[0005] In view of this, the utility model provides a granulator with a high-pigment special carbon black material circulation backflow, the main purpose of which is to stabilize the discharge flow of the carbon black material of the granulator.

[0006] In order to achieve the above-mentioned purpose, the present invention mainly provides the following technical solutions:

[0007] The utility model provides a granulator for circulating and recirculating high-pigment special carbon black materials, which comprises: a cylinder, a spiral conveying mechanism and an annular partition;

[0008] A plurality of scoops are arranged circumferentially on the inner side of the rear end surface of the cylinder;

[0009] The spiral conveying mechanism includes a tube shell and a spiral blade arranged in the tube shell, the tube shell is coaxially arranged in the cylinder, and the side wall of the tube shell is sequentially provided with a feeding port, a feeding port, a return port and a discharging port, the feeding port and the discharging port are respectively located on the outside of the opposite end surfaces of the cylinder, and the multiple scoops and the return port are located in the same vertical plane;

[0010] The spiral blades include a first spiral blade, a second spiral blade, and a third spiral blade connected in sequence, the first spiral blade is located between the feeding port and the feed port, the second spiral blade is located between the feed port and the return port, and the third spiral blade is located between the return port and the discharge port, and the spiral direction of the first spiral blade and the spiral direction of the third spiral blade are opposite to the spiral direction of the second spiral blade;

[0011] The annular partition is fixedly disposed in the tube shell and is used to isolate the second spiral blade from the third spiral blade.

[0012] The purpose of the present invention and the solution to its technical problems can be further achieved by adopting the following technical measures.

[0013] Optionally, a scraper mechanism is further included, one end of the scraper mechanism is fixedly connected to the side wall of the tube shell, and the other end contacts the inner wall of the cylinder.

[0014] Optionally, a first driving mechanism is further included, wherein the first driving mechanism includes a driving gear and a driven gear, the driven gear is coaxially connected to the shaft side of the cylinder, and the driving gear is meshed with the driven gear.

[0015] Optionally, a second driving mechanism is further included, which includes a driving sprocket and a driven sprocket, the driven sprocket is coaxially connected to the spiral blade, and the driving sprocket is drivingly connected to the driven sprocket.

[0016] Optionally, a manhole is provided on the side wall of the cylinder.

[0017] By means of the above technical solution, the present invention has at least the following advantages:

[0018] The cylinder and spiral blades rotate synchronously, and the carbon black powder enters the tube shell from the feeding port. The carbon black powder is transported to the feeding port by the first spiral blade. The carbon black powder in the tube shell falls into the cylinder through the feeding port. As the carbon black powder in the cylinder increases, the carbon black powder moves to the rear end of the cylinder. Multiple scoops rotate with the cylinder and move to the top of the return port in turn. The carbon black material in the scoops slides into the tube shell through the return port.

[0019] A portion of the carbon black material slides to the front side of the annular partition and returns to the feed port along with the second spiral blade. The carbon black material returned in the tube shell passes through the feed port again and reaches the cylinder;

[0020] Another part of the carbon black material slides to the rear side of the annular partition and is transported to the discharge port along the third spiral blade.

[0021] Through the above process, as the carbon black material continues to enter the feeding port, the carbon black material is also continuously discharged from the discharging port. In the above process, the carbon black material circulates inside and outside the tube shell, and the carbon black particles rub and squeeze each other to form particles.

[0022] At the same time, due to the setting of the annular partition, carbon black material slides down on the front and rear sides of the annular partition. When the granulator is running at full load, the material flow of the carbon black material through the return port is determined, and the position of the annular partition relative to the return port is fixed. The amount of carbon black material undertaken by the tube shell space on the front and rear sides of the annular partition is also determined, thereby stabilizing the ratio of the carbon black material discharge and return volume of the granulator, and stabilizing the discharge flow of the carbon black material of the granulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a granulator for circulating and recirculating high-pigment special carbon black materials provided in an embodiment of the present utility model;

[0024] Figure 2 is a structural schematic diagram of the first driving mechanism;

[0025] Figure 3 It is a structural schematic diagram of the second driving mechanism.

[0026] The figure marks in the drawings of the specification include: cylinder 1, scoop 2, tube shell 3, feeding port 4, feed port 5, return port 6, discharge port 7, first spiral blade 8, second spiral blade 9, third spiral blade 10, frame 11, scraper 12, support rod 13, driving gear 14, driven gear 15, driving sprocket 16, driven sprocket 17, and annular partition 18. DETAILED DESCRIPTION

[0027] To further illustrate the technical means and effects employed by this utility model to achieve its intended purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed description of the specific implementation methods, structures, features, and effects of this utility model application. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0028] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1 As shown, an embodiment of the present invention provides a granulator for circulating and recirculating high-pigment special carbon black materials, which includes: a cylinder 1, a spiral conveying mechanism and an annular partition 18;

[0030] A plurality of scoops 2 are arranged circumferentially on the inner side of the rear end surface of the cylinder 1;

[0031] The spiral conveying mechanism includes a tube shell 3 and a spiral blade arranged in the tube shell 3. The tube shell 3 is coaxially arranged in the cylinder 1. The side wall of the tube shell 3 is sequentially provided with a feeding port 4, a feeding port 5, a return port 6 and a discharge port 7. The feeding port 4 and the discharge port 7 are respectively located on the outside of the opposite end surfaces of the cylinder 1. The multiple scoops 2 and the return port 6 are located in the same vertical plane.

[0032] The spiral blades include a first spiral blade 8, a second spiral blade 9, and a third spiral blade 10 connected in sequence. The first spiral blade 8 is located between the feeding port 4 and the feed port 5, the second spiral blade 9 is located between the feed port 5 and the return port 6, and the third spiral blade 10 is located between the return port 6 and the discharge port 7. The spiral direction of the first spiral blade 8 and the spiral direction of the third spiral blade 10 are opposite to the spiral direction of the second spiral blade 9.

[0033] The annular partition 18 is fixedly disposed in the tube shell 3 and is used to separate the second spiral blade 9 from the third spiral blade 10 .

[0034] The working process of a granulator with high pigment special carbon black material circulation is as follows:

[0035] The cylinder 1 and the spiral blades rotate synchronously, and the carbon black powder enters the tube shell 3 from the feeding port 4. The carbon black powder is transported to the feeding port 5 by the first spiral blade 8. The carbon black powder in the tube shell 3 falls into the cylinder 1 through the feeding port 5. As the carbon black powder in the cylinder 1 increases, the carbon black powder moves to the rear end of the cylinder 1. Multiple scoops 2 rotate with the cylinder 1 and move in sequence to the top of the return port 6. The carbon black material in the scoops 2 slides through the return port 6 into the tube shell 3;

[0036] A portion of the carbon black material slides to the front side of the annular partition 18 and returns to the feed port 5 along with the second spiral blade 9. The carbon black material returned in the tube shell 3 passes through the feed port 5 again and reaches the cylinder 1;

[0037] Another portion of the carbon black material slides to the rear side of the annular partition 18 and is transported to the discharge port 7 along with the third spiral blade 10 .

[0038] Through the above process, as the carbon black material continues to enter the feeding port 4, the discharge port 7 also continuously discharges the carbon black material. In the above process, the carbon black material circulates inside and outside the tube shell 3, and the carbon black particles rub and squeeze each other to form particles.

[0039] At the same time, due to the setting of the annular baffle 18, carbon black material slides down on the front and rear sides of the annular baffle 18. When the granulator is running at full load, the material flow of the carbon black material through the return port 6 is determined, and the position of the annular baffle 18 relative to the return port 6 is fixed. The amount of carbon black material that can be accommodated in the space of the tube shell 3 on the front and rear sides of the annular baffle 18 is also determined, thereby stabilizing the ratio of the carbon black material discharge and return flow of the granulator, and stabilizing the discharge flow of the carbon black material of the granulator.

[0040] Specifically, it also includes a frame 11, and the lower side walls of both ends of the tube shell 3 are fixedly connected to the frame 11; the central axis of the spiral blade is installed on the frame 11 through a bearing; and the two end surfaces of the cylinder 1 are installed on the frame 11 through bearings.

[0041] Specifically, the spiral rotation direction of the first spiral blade 8 and the spiral rotation direction of the third spiral blade 10 are respectively positive directions, and the spiral rotation direction of the second spiral blade 9 is negative direction.

[0042] Specifically, the central axis of the spiral blade passes through the central hole of the annular partition 18 .

[0043] In a specific embodiment, a scraper mechanism is further included, one end of which is fixedly connected to the side wall of the tube shell 3 , and the other end of which contacts the inner wall of the cylinder 1 .

[0044] In this embodiment, specifically, the scraper mechanism includes a plurality of support rods 13 and scrapers 12, the lower ends of the support rods 13 are fixedly connected to the upper side wall of the tube shell 3, and the upper ends of the support rods 13 are fixedly connected to the scrapers 12, and the scrapers 12 contact the inner side wall of the cylinder 1. During the rotation of the cylinder 1 relative to the tube shell 3, the scrapers 12 peel off the carbon black material adhered to the inner side wall of the cylinder 1 to ensure the fluidity of the carbon black material.

[0045] like Figure 2 As shown, in a specific embodiment, it also includes a first driving mechanism, which includes a driving gear 14 and a driven gear 15. The driven gear 15 is coaxially connected to the shaft side of the cylinder 1, and the driving gear 14 is engaged with the driven gear 15.

[0046] In this embodiment, specifically, the driving gear 14 is coaxially connected to the output shaft of the first drive motor, the first drive motor drives the driving gear 14 to rotate, the driving gear 14 drives the driven gear 15 to rotate, and the driven gear 15 and the cylinder 1 rotate coaxially, thereby forming a relative movement between the inner side surface of the cylinder 1 and the scraper 12, so that the carbon black adhering to the inner side surface of the cylinder 1 falls off.

[0047] like Figure 3As shown, in a specific embodiment, a second driving mechanism is further included, which includes a driving sprocket 16 and a driven sprocket 17. The driven sprocket 17 is coaxially connected to the spiral blade, and the driving sprocket 16 is transmission-connected to the driven sprocket 17.

[0048] In this embodiment, specifically, the driving sprocket 16 is coaxially connected to the output shaft of the second driving motor, the driven sprocket 17 is coaxially connected to the central axis of the spiral blade, the driving sprocket 16 is connected to the driven sprocket 17 through a chain, the second driving motor drives the driving sprocket 16 to rotate, the driving sprocket 16 drives the driven sprocket 17 to rotate, and the driven sprocket 17 drives the spiral blade to rotate, thereby realizing the transportation of carbon black material in the tube shell 3.

[0049] In a specific embodiment, a manhole is provided on the side wall of the cylinder 1 .

[0050] In this embodiment, specifically, when an abnormal situation occurs in the feeding or discharging of the granulator, the operator can stop the machine and open the inspection manhole on the side wall of the cylinder 1 to check the internal situation of the cylinder 1.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A granulator for circulating high-pigment special carbon black materials, characterized in that: include: A cylinder, wherein a plurality of scoops are arranged circumferentially on the inner side of the rear end surface of the cylinder; A spiral conveying mechanism, the spiral conveying mechanism comprising a tube shell and a spiral blade disposed within the tube shell, the tube shell being coaxially disposed within the cylinder, the side wall of the tube shell being sequentially provided with a feeding port, a feed port, a return port, and a discharge port, the feeding port and the discharge port being respectively located on the outside of opposite end surfaces of the cylinder, and the plurality of scoops and the return port being located in the same vertical plane; The spiral blades include a first spiral blade, a second spiral blade, and a third spiral blade connected in sequence, the first spiral blade is located between the feeding port and the feed port, the second spiral blade is located between the feed port and the return port, and the third spiral blade is located between the return port and the discharge port, and the spiral direction of the first spiral blade and the spiral direction of the third spiral blade are opposite to the spiral direction of the second spiral blade; An annular partition is fixedly disposed in the tube shell and is used to isolate the second spiral blade from the third spiral blade.

2. The granulator for circulating and recirculating high-pigment special carbon black materials according to claim 1, characterized in that: It also includes a scraper mechanism, one end of which is fixedly connected to the side wall of the tube shell, and the other end of which contacts the inner side wall of the cylinder.

3. The granulator for circulating and recirculating high-pigment special carbon black materials according to claim 2, characterized in that: The invention also includes a first driving mechanism, which includes a driving gear and a driven gear. The driven gear is coaxially connected to the shaft side of the cylinder, and the driving gear is meshed with the driven gear.

4. The granulator for circulating and recirculating high-pigment specialty carbon black materials according to any one of claims 1 to 3, characterized in that: The invention also includes a second driving mechanism, which includes a driving sprocket and a driven sprocket. The driven sprocket is coaxially connected to the spiral blade, and the driving sprocket is drivingly connected to the driven sprocket.

5. The granulator for circulating and recirculating high-pigment specialty carbon black materials according to any one of claims 1 to 3, characterized in that: A maintenance manhole is provided on the side wall of the cylinder.

Images