An improved roller press extrusion system

Abstract

This utility model discloses an improved roller press extrusion system, including a sorting machine and a roller press. The sorting machine is connected to the roller press via a chute for material conveying. The chute is located above the roller press and has an overflow port. A discharge pipe is located at the overflow port on the chute, and the end of the discharge pipe is connected to a slag discharge bin. The combination of the chute, overflow port, discharge pipe, and slag discharge bin replaces the traditional flow-stabilizing weighing bin used to stabilize material pressure in a roller press system. A speed-regulating conveyor is located at the bottom of the slag discharge bin. This utility model has a simple structure. By adding an overflow port to the chute and connecting it to the discharge pipe connected to the slag discharge bin, the combination of the chute, overflow port, discharge pipe, and slag discharge bin not only significantly reduces construction and operating costs but also improves system stability and efficiency through optimized design, while reducing equipment wear.

Description

Technical Field

[0001] This utility model relates to the field of material processing technology, specifically an improved roller press extrusion system. Background Technology

[0002] Roller presses are high-efficiency grinding equipment widely used in industries such as mining, cement, and metallurgy. They are mainly used for pre-crushing or fine crushing of various hard materials. Their working principle involves two relatively rotating high-pressure rollers applying enormous compressive force to the material, causing it to be crushed or refined as it passes through the gap between the rollers. The core of the roller press system lies in providing a stable and efficient material supply and processing capacity to ensure the continuity of the production process and product quality.

[0003] In traditional roller press systems, a flow-stabilizing weighing hopper is often installed above the roller press. Its main purpose is to provide a stable and uniform material pressure and supply to the roller press. However, the flow-stabilizing weighing hopper above the roller press has many prominent problems that have not been solved for a long time. For example, in order to ensure that the material does not accumulate in the hopper and to maintain a stable material pressure, it is usually necessary to increase the cone angle at the bottom of the hopper. This leads to a further increase in the height of the hopper, which in turn increases the height requirements of the plant and conveying equipment. In addition, because the bottom of the flow-stabilizing weighing hopper is conical and the volume is relatively large, the material in the hopper is prone to segregation. This may not only cause the roller press to deviate from its normal position, reduce the working efficiency and extrusion effect, but may also cause the material to collapse or surge, impacting subsequent equipment. Furthermore, the presence of the hopper increases the number of dust points and deteriorates the working environment of the workshop. Therefore, an improved roller press extrusion system is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an improved roller press extrusion system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an improved roller press extrusion system, comprising a sorting machine and a roller press, wherein the sorting machine is connected to the roller press via a chute for conveying materials, the chute is provided with an overflow port above the roller press, and a discharge pipe is provided at the overflow port of the chute, the end of the discharge pipe being connected to a slag discharge bin, wherein the combination of the chute, overflow port, discharge pipe and slag discharge bin replaces the flow stabilizing weighing bin used to stabilize material pressure in the traditional roller press system, and a speed-regulating conveyor is provided at the bottom of the slag discharge bin.

[0006] As a further embodiment of this utility model: a first manual rod valve and a pneumatic rod valve are installed on the chute, and both the first manual rod valve and the pneumatic rod valve are located below the overflow port.

[0007] As a further embodiment of this utility model: a second manual rod valve is installed between the slag discharge bin and the speed-regulating conveyor to control whether the material inside the slag discharge bin is discharged.

[0008] As a further embodiment of this utility model: the sorting machine includes:

[0009] The first outlet is connected to the roller press via a chute;

[0010] The second outlet connects directly to the next process step.

[0011] As a further embodiment of this utility model, a load sensor is installed inside the slag discharge bin.

[0012] As a further embodiment of this utility model: the speed-regulating conveyor includes a support frame and a belt mounted on the support frame and driven by a motor.

[0013] As a further embodiment of this utility model: the roller press is provided with a discharge channel for discharging the processed material from the roller press.

[0014] As a further embodiment of this utility model, it also includes a material collection pipe and a material feeding pipe. The material collection pipe has three interfaces, one of which is connected to a speed-regulating conveyor to receive the material discharged through the slag discharge bin, another interface is the raw material inlet, and the remaining interface is connected to the end of the material feeding pipe, the other end of which is connected to a sorting machine.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application adds an overflow port to the chute and connects it to a discharge pipe that is connected to the slag discharge bin. The combination of the chute, overflow port, discharge pipe, and slag discharge bin replaces the traditional flow-stabilizing weighing bin used in roller press systems to stabilize material pressure. This improvement brings several significant advantages: eliminating the flow-stabilizing weighing bin reduces the plant height requirement, lowers civil engineering costs and the height requirements of conveying equipment, thereby effectively reducing overall construction investment. Furthermore, it simplifies the material transport path, reduces equipment complexity and maintenance difficulty, and improves the overall efficiency of the system. Its compact design also increases the maintenance space of the roller press, facilitating daily maintenance and repair work. The combined design of the chute and slag discharge bin ensures the stability of material supply, avoiding unstable extrusion effects caused by material segregation, bin collapse, or material overflow, thus improving the working efficiency and product quality of the roller press. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the extrusion system of this utility model;

[0018] Figure 2This is a schematic diagram of the speed-regulating conveyor of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection between the chute, overflow port, and discharge pipe of this utility model;

[0020] In the diagram: 1. Sorter; 1-1. First outlet; 1-2. Second outlet; 2. Roller press; 3. Chute; 4. Overflow port; 5. Discharge pipe; 6. Slag bin; 7. Variable speed conveyor; 7-1. Support frame; 7-2. Motor; 7-3. Belt; 8. First manual rod valve; 9. Pneumatic rod valve; 10. Second manual rod valve; 11. Load cell; 12. Discharge channel; 13. Collection pipe; 14. Feeding pipe. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3In this embodiment of the invention, an improved roller press extrusion system includes a sorting machine 1 and a roller press 2. The sorting machine 1 is connected to the roller press 2 via a chute 3 to complete the material conveying. The chute 3 adopts a pipe-like design, which differs from the conical structure of the steady-flow weighing bin. The presence of the steady-flow weighing bin easily leads to material segregation within the bin, i.e., the separation of materials with different particle sizes or densities. Material segregation can not only cause the roller press to deviate from its roller position, reducing its working efficiency and extrusion effect, but also cause uneven material distribution within the bin. This situation can cause unnecessary impact on subsequent equipment, affecting the stability and safety of the entire production line. In contrast, the pipe-like design of the chute 3... The design effectively avoids the above-mentioned problems, ensures the uniformity and continuity of material transmission, reduces the risk of impact on subsequent equipment, and thus improves the stability and efficiency of the entire system. The chute 3 is located above the roller press 2 and has an overflow port 4. Because the height of the overflow port 4 on the chute 3 is fixed, the material pressure entering the roller press 2 is stable and the material column is dense. This satisfies the requirements of oversaturated feeding and stable material pressure in the roller press 2, resulting in less material segregation and stable operation of the roller press 2. A discharge pipe 5 is located at the overflow port 4 on the chute 3, and the end of the discharge pipe 5 is connected to the slag discharge bin 6. The chute 3, overflow port 4, and discharge pipe 5 are all connected in this configuration. The combination of the chute 3 and the slag discharge bin 6 replaces the traditional steady-flow weighing bin used to stabilize material pressure in the roller press system. When the material in the chute 3 exceeds the overflow port 4, it will sequentially pass through the overflow port 4 and the discharge pipe 5 into the interior of the slag discharge bin 6. The design and layout of the chute 3 are flexible and can be adjusted according to specific bin conditions, ensuring that its installation does not affect the height space inside the plant. Compared with the steady-flow weighing bin, the chute 3 has a more compact and small structure, is easier to install and arrange, and adapts to different site environments. Moreover, the chute 3 adopts a fully enclosed design with only necessary inlets and outlets, effectively reducing dust problems during material handling. Due to the reduction of dust points, the chute 3 has... To help maintain a clean work site and provide a better working environment, a speed-regulating conveyor 7 is installed at the bottom of the slag discharge bin 6, and the chute 3 is a pipe-shaped design without a steady-flow weighing bin. The steady-flow weighing bin design is prone to material segregation within the bin, which can easily cause the roller press to deviate from its normal position, resulting in low power output and poor extrusion effect. Material segregation within the bin can also cause the bin to collapse and overflow, impacting subsequent equipment. In addition, the presence of the slag discharge bin 6 can store the system's returned material under abnormal operating conditions. Furthermore, as the eye of the roller press system's material balance, changes in the bin position will reflect whether the roller press system's material is balanced, thus facilitating the central control operator to adjust the system parameters.

[0023] Please see Figure 1In one embodiment, preferably, a first manual rod valve 8 and a pneumatic rod valve 9 are installed on the chute 3. Both the first manual rod valve 8 and the pneumatic rod valve 9 are located below the overflow port 4. A load sensor 11 is installed inside the slag discharge bin 6. The slag discharge bin 6 and the speed-regulating conveyor 7 are connected by a second manual rod valve 10 to control whether the material inside the slag discharge bin 6 is discharged. During normal production, the first manual rod valve 8, the pneumatic rod valve 9, and the second manual rod valve 10 are all in the open state. When the amount of material conveyed exceeds the position of the overflow port 4 on the chute 3, it will flow into the slag discharge bin 6 through the discharge pipe 5. The load sensor 11 located inside the slag discharge bin 6 is... Sensor 11 monitors the material level changes in the bin in real time. Since the speed-regulating conveyor 7 is running at a constant speed, the feeding and discharging of the entire extrusion system are balanced. When the load sensor 11 detects an abnormal change in the bin level, it indicates that the balance between the feeding and discharging of the system has been broken. At this time, the operator will adjust the system parameters or adjust the conveying speed of the speed-regulating conveyor 7 to re-establish the balance. The operator will close the pneumatic rod valve 9 and the second manual rod valve 10 only when the system is under maintenance or starting and stopping. In order to prevent the pneumatic rod valve 9 from malfunctioning, a first manual rod valve 8 is also provided for manual closing.

[0024] Please see Figure 1 In one embodiment, preferably, the sorting machine 1 includes a first outlet 1-1, which is connected to the roller press 2 via a chute 3. The material discharged through the first outlet 1-1 is coarse material and needs to be further processed by the roller press 2 to become fine material. The second outlet 1-2 is directly connected to the next process, and the material discharged through the second outlet 1-2 is fine material that can directly enter the next process for processing.

[0025] Please see Figure 2 In one embodiment, preferably, the speed-regulating conveyor 7 includes a support 7-1 and a belt 7-3 mounted on the support 7-1 and driven by a motor 7-2. When the motor 7-2 rotates forward, the belt 7-3 on the speed-regulating conveyor 7 runs to one side to send the material discharged from the slag discharge bin 6 into the sorting machine 1 for secondary sorting. When it is necessary to clean the impurities in the chute 3, the motor 7-2 will be set to reverse mode. At this time, the belt 7-3 on the speed-regulating conveyor 7 will run in the opposite direction. This reverse movement ensures that the impurities discharged from the slag discharge bin 6 can be effectively transported outward instead of entering the normal material processing flow. When the belt 7-3 moves to the other side, any impurities falling on the belt 7-3 will not enter the collection pipe 13 and will be kept away from the normal material flow, making it easier for workers to collect and process these impurities in a unified manner. In addition, adjusting the speed of the motor 7-2 can adjust the speed of material conveying, thereby achieving a balance between feeding and discharging.

[0026] Please see Figure 1 In one embodiment, preferably, the roller press 2 is provided with a discharge channel 12 for discharging the processed material from the roller press 2, and the end of the discharge channel 12 is connected to the next process.

[0027] Please see Figure 1 In one embodiment, preferably, it further includes a collection pipe 13 and a feeding pipe 14. The collection pipe 13 has three interfaces, one of which is connected to the speed-regulating conveyor 7 to receive the material discharged through the slag discharge bin 6, another interface is the raw material inlet, and the remaining interface is connected to the end of the feeding pipe 14. The other end of the feeding pipe 14 is connected to the separator 1, which further facilitates the collection of the speed-regulating conveyor 7 and the raw materials and their re-feeding into the separator 1 through the feeding pipe 14.

[0028] The working principle and usage process of this utility model are as follows: The raw materials are first fed into one interface of the collection pipe 13. Then, the materials are transferred to the inside of the sorting machine 1 through the feeding pipe 14. Inside the sorting machine 1, the materials are divided into fine materials and coarse materials according to their particle size. The fine materials are discharged through the second outlet 1-2 and enter the next process, while the coarse materials enter the chute 3 through the first outlet 1-1 for further processing. The coarse materials are fed into the roller press 2 through the chute 3 for extrusion processing. After processing, the materials are discharged from the system through the discharge channel 12. Due to the oversaturated feeding characteristics of the roller press, when the material fills the chute 3, the excess material will reach the overflow port 4. The excess material is automatically guided into the slag discharge bin 6 through the discharge pipe 5 and transported to the speed-regulating conveyor 7. The speed-regulating conveyor 7 sends the material in the slag discharge bin 6 back to the roller press 2 to realize the recycling and reprocessing of the materials.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0030] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An improved roller press extrusion system, comprising a sorting machine (1) and a roller press (2), characterized in that, The sorting machine (1) is connected to the roller press (2) through the chute (3) to complete the material conveying. The chute (3) is located above the roller press (2) and has an overflow port (4). The chute (3) is located at the overflow port (4) and has a discharge pipe (5). The end of the discharge pipe (5) is connected to the slag discharge bin (6). The combination of the chute (3), overflow port (4), discharge pipe (5) and slag discharge bin (6) replaces the steady flow weighing bin used to stabilize the material pressure in the traditional roller press system. The bottom of the slag discharge bin (6) is equipped with a speed-regulating conveyor (7).

2. The improved roller press extrusion system according to claim 1, characterized in that, The chute (3) is equipped with a first manual rod valve (8) and a pneumatic rod valve (9), both of which are located below the overflow port (4).

3. The improved roller press extrusion system according to claim 1, characterized in that, The material inside the slag discharge bin (6) is controlled by a second manual rod valve (10) between the slag discharge bin (6) and the speed regulating conveyor (7).

4. The improved roller press extrusion system according to claim 1, characterized in that, The sorting machine (1) includes: The first outlet (1-1) is connected to the roller press (2) via a chute (3); The second outlet (1-2) is directly connected to the next process.

5. The improved roller press extrusion system according to claim 1, characterized in that, A load sensor (11) is installed inside the slag discharge bin (6).

6. The improved roller press extrusion system according to claim 1, characterized in that, The speed-regulating conveyor (7) includes a support (7-1) and a belt (7-3) mounted on the support (7-1) and driven by a motor (7-2).

7. The improved roller press extrusion system according to claim 1, characterized in that, The roller press (2) is provided with a discharge channel (12) for discharging the processed material from the roller press (2).

8. The improved roller press extrusion system according to claim 1, characterized in that, It also includes a collection pipe (13) and a feeding pipe (14). The collection pipe (13) has three interfaces, one of which is connected to a speed-regulating conveyor (7) to receive the material discharged through the slag discharge bin (6), another interface is the raw material inlet, and the remaining interface is connected to the end of the feeding pipe (14). The other end of the feeding pipe (14) is connected to the sorting machine (1).

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