Self-cleaning double-roller extrusion granulator

Abstract

The utility model discloses a self-cleaning double-roller extrusion pelletizer which comprises a pelletizer box body, an extrusion roller group, a pelletizing roller group and an extrusion roller cleaning assembly, and the extrusion roller group, the pelletizing roller group and the extrusion roller cleaning assembly are all arranged in the pelletizer box body. An extrusion seam of two extrusion rollers in the extrusion roller group is positioned below a feeding hole in the top of the granulator box body; the cutting seam of the two pelletizing rollers in the pelletizing roller group is positioned below the extrusion seam of the two extrusion rollers; the extrusion roller cleaning assembly makes contact with the extrusion roller set and is used for cleaning the surface of the extrusion roller set. Raw materials attached to the extrusion roller set are effectively removed in time through the extrusion roller cleaning assembly, and therefore the conditions that the quality of formed products is poor and equipment is damaged are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of double-roller extrusion granulator equipment, in particular to a self-cleaning double-roller extrusion granulator. Background Art

[0002] A granulator is a machine that shapes materials into specific shapes. It is widely used in material processing and forming processes in the chemical, petrochemical, pharmaceutical, food, building materials, mining, and metallurgy industries. Currently, a double-roller extrusion granulator is commonly used to produce granular materials. These machines feature two opposing rollers with grooves that correspond to each other, creating a granulation space between the two grooves. As the material passes between the rollers, it is squeezed and shaped, completing the granulation process. However, during the production process, some material may adhere to the roller surfaces, affecting product quality and even damaging the equipment structure. Utility Model Content

[0003] The utility model aims to provide a self-cleaning double-roller extrusion granulator, which can timely and effectively clean the materials adhered to the surface of the extrusion roller group, thereby avoiding the occurrence of poor quality of the molded products and damage to the equipment.

[0004] The utility model is achieved through the following technical solutions:

[0005] A self-cleaning double-roller extrusion granulator includes a granulator housing, an extrusion roller group, a pelletizing roller group, and an extrusion roller cleaning assembly. The extrusion roller group, the pelletizing roller group, and the extrusion roller cleaning assembly are all arranged in the granulator housing. The extrusion slits of the two extrusion rollers in the extrusion roller group are located below the feed port at the top of the granulator housing; the cutting slits of the two pelletizing rollers in the pelletizing roller group are located below the extrusion slits of the two extrusion rollers; the extrusion roller cleaning assembly is in contact with the extrusion roller group and is used to clean the surface of the extrusion roller group. In order to solve the above-mentioned technical problems and achieve the corresponding technical effects, the utility model uses the extrusion roller cleaning assembly to promptly and effectively remove raw materials attached to the extrusion roller group, thereby avoiding the occurrence of poor quality of the molded products and damage to the equipment.

[0006] Further technical solutions:

[0007] The squeezing roller cleaning assembly includes a cleaning member and a slag collecting chamber. The scraper portion of the cleaning member contacts the surface of the squeezing roller. The slag collecting chamber is arranged below the cleaning member, and the slag scraped by the cleaning member falls into the slag collecting chamber.

[0008] Furthermore: the squeezing roller cleaning assembly also includes a receiving member, which is arranged on the top of the slag collection chamber and extends to the bottom of the squeezing roller.

[0009] Furthermore: the bottom plate of the slag collecting chamber is arranged tilted, and a slag outlet is opened on the cavity wall on the tilted side of the bottom plate of the slag collecting chamber.

[0010] Furthermore: the slag collecting chamber is formed by a slag baffle on the inner wall of the granulator housing, and the slag outlet is opened on the side wall of the granulator housing.

[0011] Furthermore: each of the two squeezing rollers is provided with a group of squeezing roller cleaning components.

[0012] Furthermore: a granulation product cavity is formed between the two slag baffles, and the granulation roller group is arranged in the granulation product cavity;

[0013] Furthermore: a finished product outlet is provided at the bottom of the granulation finished product chamber.

[0014] Furthermore: the extrusion roller is provided with an extrusion groove, the cleaning member is provided with cleaning teeth adapted to the extrusion groove, the tooth bottoms of the cleaning teeth are in contact with the surface of the extrusion roller, and the tooth tops of the cleaning teeth are in contact with the groove bottom of the extrusion groove.

[0015] Furthermore: a feed bin is provided on the top of the granulator housing, an outlet of the feed bin is provided above the extrusion gap of the extrusion roller group, and the outlet of the feed bin is opened along the direction of the extrusion gap.

[0016] Furthermore: it also includes a stirring device, which is arranged above the feed bin, and the discharge port of the stirring device is connected to the feed port of the feed bin.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. The utility model is a self-cleaning double-roller extrusion granulator, which uses the extrusion roller cleaning component to promptly and effectively remove the raw materials attached to the extrusion roller group, thereby avoiding the occurrence of poor quality of the molded products and damage to the equipment.

[0019] 2. The utility model is a self-cleaning double-roller extrusion granulator. The setting of the slag collecting chamber can effectively separate the slag and the finished product, avoiding the cleaned slag from entering the finished product and affecting the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a partial schematic diagram of the structure of the squeezing roller cleaning assembly;

[0023] Figure 3 A top view of the cooperating structure of the squeezing roller group and the squeezing roller cleaning assembly;

[0024] Figure 4 This is a schematic diagram of the coordination structure between the cleaning element and the squeezing roller.

[0025] Markings and corresponding parts names in the accompanying drawings:

[0026] 1- granulator housing, 2- extrusion roller group, 3- pelletizing roller group, 4- extrusion roller cleaning assembly, 5- granulation finished product chamber, 6- feed bin, 7- mixing equipment, 21- extrusion groove, 41- cleaning part, 42- slag collection chamber, 43- receiving part, 44- slag outlet, 45- slag baffle, 51- finished product outlet, 411- cleaning teeth. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0029] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout this specification do not necessarily refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0031] Example:

[0032] like Figures 1 to 4 As shown, the utility model is a self-cleaning double-roller extrusion granulator, comprising a granulator housing 1, an extrusion roller group 2, a pelletizing roller group 3 and an extrusion roller cleaning component 4, wherein the extrusion roller group 2, the pelletizing roller group 3 and the extrusion roller cleaning component 4 are all arranged in the granulator housing 1, and the extrusion gaps of the two extrusion rollers in the extrusion roller group 2 are located below the top feed port of the granulator housing 1; the cutting gaps of the two pelletizing rollers in the pelletizing roller group 3 are located below the extrusion gaps of the two extrusion rollers; the extrusion roller cleaning component 4 is in contact with the extrusion roller group 2, and the extrusion roller cleaning component 4 is used to clean the surface of the extrusion roller group 2. In this embodiment, under normal working conditions, the raw materials enter the granulator housing 1 from the feed port and are evenly and effectively distributed to the extrusion gaps of the two extrusion rollers in the extrusion roller group 2. The raw materials squeezed by the two extrusion rollers enter the pelletizing roller group 3 below to complete the pelletizing work. At the same time, the extrusion roller cleaning assembly 4 cleans the surface of the extrusion roller during operation, thereby effectively removing the raw materials attached to the surface, thereby avoiding poor quality of the molded products and damage to the equipment.

[0033] The specific structure of the squeezing roller cleaning assembly 4 is as follows: the squeezing roller cleaning assembly 4 includes a cleaning member 41 and a slag collection chamber 42. The scraper portion of the cleaning member 41 contacts the surface of the squeezing roller. The slag collection chamber 42 is arranged below the cleaning member 41, and the slag scraped off by the cleaning member 41 falls into the slag collection chamber 42. In this embodiment, the cleaning member 41 can effectively clean the raw materials attached to the surface of the squeezing roller. The slag cleaned by the cleaning member 41 then falls directly into the slag collection chamber 42 for centralized processing, thereby preventing the cleaned slag from mixing with the finished material, effectively ensuring the finished product quality of the finished material. Furthermore, the squeezing roller cleaning assembly 4 also includes a receiving member 43, which is arranged at the top of the slag collection chamber 42 and extends to the bottom of the squeezing roller. In this embodiment, during the process of cleaning the raw materials attached to the extrusion roller, slag may fall into the finished product from the gap between the extrusion roller and the slag collection chamber 42. At this time, the setting of the receiving member 43 can effectively prevent the slag from falling into the finished product. Specifically, the other end of the receiving member 43 extends to directly below the center axis of the extrusion roller. This position can not only effectively ensure that the slag falls into the slag collection chamber 42, but also prevent the receiving member 43 from affecting the normal granulation operation. In order to facilitate the discharge of the slag collected in the slag collection chamber 42, the bottom plate of the slag collection chamber 42 is set at an angle, and a slag outlet 44 is opened on the cavity wall on the inclined side of the bottom plate of the slag collection chamber 42. Specifically, the structure of the slag collection chamber 42 in this embodiment is as follows: the slag collection chamber 42 is formed by a slag baffle 45 on the inner wall of the granulator housing 1, and the slag outlet 44 is opened on the side wall of the granulator housing 1.

[0034] In this embodiment, because the squeezing roller group 2 includes two squeezing rollers, each of the two squeezing rollers is provided with a group of squeezing roller cleaning components 4 .

[0035] A finished granulation chamber 5 is formed between the two slag baffles 45. The pelletizing roller assembly 3 is disposed within the finished granulation chamber 5. A finished product outlet 51 is defined at the bottom of the finished granulation chamber 5. In this embodiment, the slag baffles 45 separate the interior of the granulator housing 1 into a slag collection chamber 42 and a finished granulation chamber 5. Slag enters the slag collection chamber 42, while finished product enters the finished granulation chamber 5. This effectively separates the slag from the finished product, preventing slag from mixing with the finished product and affecting its quality.

[0036] The extrusion roller is provided with an extrusion groove 21, and the cleaning member 41 is provided with cleaning teeth 411 adapted to the extrusion groove 21. The bottoms of the cleaning teeth 411 contact the surface of the extrusion roller, while the tops of the cleaning teeth 411 contact the bottom of the extrusion groove 21. In this embodiment, the extrusion roller utilizes the extrusion groove 21 to extrude the raw material into strips, which are then cut into granular products by the pelletizing roller assembly 3. Furthermore, to facilitate the cleaning of residue within the extrusion groove 21, the cleaning member 41 is further provided with cleaning teeth 411 adapted to its structure.

[0037] A feed bin 6 is provided on the top of the granulator housing 1. The outlet of the feed bin 6 is provided above the extrusion slot of the extrusion roller assembly 2 and extends in the direction of the extrusion slot. In this embodiment, the provision of the feed bin 6 ensures a smooth distribution of the raw materials, and the outlet of the feed bin 6 is in the shape of an elongated strip that matches the structure of the extrusion slot.

[0038] The granulator further includes a stirring device 7 , which is arranged above the feed bin 6 , and the discharge port of the stirring device 7 is connected to the feed port of the feed bin 6 .

[0039] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A self-cleaning roller extrusion granulator, characterized in that: The invention comprises a granulator housing (1), an extrusion roller group (2), a pelletizing roller group (3) and an extrusion roller cleaning assembly (4); the extrusion roller group (2), the pelletizing roller group (3) and the extrusion roller cleaning assembly (4) are all arranged in the granulator housing (1); the extrusion slits of the two extrusion rollers in the extrusion roller group (2) are located below the top feed port of the granulator housing (1); the cutting slits of the two pelletizing rollers in the pelletizing roller group (3) are located below the extrusion slits of the two extrusion rollers; the extrusion roller cleaning assembly (4) is in contact with the extrusion roller group (2), and the extrusion roller cleaning assembly (4) is used to clean the surface of the extrusion roller group (2).

2. The self-cleaning roller extrusion granulator according to claim 1, characterized in that: The squeezing roller cleaning assembly (4) comprises a cleaning member (41) and a slag collecting chamber (42), wherein the scraper portion of the cleaning member (41) contacts the surface of the squeezing roller, the slag collecting chamber (42) is arranged below the cleaning member (41), and the slag scraped off by the cleaning member (41) falls into the slag collecting chamber (42).

3. The self-cleaning roller extrusion granulator according to claim 2, characterized in that: The squeezing roller cleaning assembly (4) further comprises a receiving member (43), wherein the receiving member (43) is arranged on the top of the slag collecting chamber (42), and the receiving member (43) extends to the bottom of the squeezing roller.

4. The self-cleaning roller extrusion granulator according to claim 3, characterized in that: The bottom plate of the slag collecting chamber (42) is arranged tilted, and a slag outlet (44) is provided on the chamber wall on the tilted side of the bottom plate of the slag collecting chamber (42).

5. The self-cleaning double-roller extrusion granulator according to claim 4, characterized in that: The slag collecting chamber (42) is formed on the inner wall of the granulator housing (1) by being enclosed by a slag baffle (45), and the slag outlet (44) is opened on the side wall of the granulator housing (1).

6. The self-cleaning double-roller extrusion granulator according to claim 5, characterized in that: Each of the two squeezing rollers is provided with a group of squeezing roller cleaning components (4).

7. The self-cleaning double-roller extrusion granulator according to claim 6, characterized in that: A granulation product cavity (5) is formed between the two slag baffles (45), and the granulation roller group (3) is arranged in the granulation product cavity (5); a finished product outlet (51) is provided at the bottom of the granulation product cavity (5).

8. The self-cleaning roller extrusion granulator according to claim 2, characterized in that: The squeezing roller is provided with an squeezing groove (21), and the cleaning member (41) is provided with a cleaning tooth (411) adapted to the squeezing groove (21), the tooth bottom of the cleaning tooth (411) contacts the surface of the squeezing roller, and the tooth top of the cleaning tooth (411) contacts the groove bottom of the squeezing groove (21).

9. The self-cleaning double-roller extrusion granulator according to claim 1, characterized in that: A feed bin (6) is provided on the top of the granulator housing (1), an outlet of the feed bin (6) is provided above the extrusion gap of the extrusion roller group (2), and the outlet of the feed bin (6) is opened along the direction of the extrusion gap.

10. The self-cleaning double-roller extrusion granulator according to claim 9, characterized in that: It also includes a stirring device (7), which is arranged above the feed bin (6), and the discharge port of the stirring device (7) is connected to the feed port of the feed bin (6).

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