Roller press anti-unbalance load wear-resistant type stable feeding device

Abstract

The utility model discloses a kind of anti-deviation load wear-resistant type stable feeding devices of roller press, fixed support, big side baffle, gate, guide plate, executing mechanism, the top of the fixed support has feeding port, and along the feeding port downward by the big side baffle of two sides, the guide plate of before and after constitutes feeding channel, the bottom of the feeding channel is equipped with gate, the executing mechanism is installed in the feeding port side of fixed support top, and is connected with the gate installed to the inboard of fixed support, the gate moves along guide plate. The utility model feeding device is simple to operate, convenient to install, greatly reduces spare parts cost, effectively solves the edge effect when roller press material flows simultaneously, reduces the phenomenon of material leakage pressure relief, improves equipment operating efficiency and the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of cement clinker production line equipment, and in particular to a roller press anti-eccentric load wear-resistant stable feeding device. Background Technology

[0002] The feeding device is a crucial piece of equipment for ensuring the stable operation of a roller press. The material pressure and flow rate directly affect the extrusion efficiency of the roller press. For example, the published document with authorization announcement number CN201399369Y, authorization announcement date February 10, 2010, entitled "A Feeding Device for a Roller Press Combined Grinding System," discloses a feeding device for a roller press combined grinding system. This device includes a housing with a feed inlet, and a pneumatic gate valve fixedly mounted on the housing. The pneumatic gate valve includes a gate and a drive cylinder. There is one drive cylinder, and the piston rod of the drive cylinder is fixedly connected to a connecting plate, which is fixedly connected to the gate.

[0003] Because the gate and side baffles are constantly eroded by the material, they are worn abnormally. The side baffles cannot be adjusted to improve their sealing performance, resulting in poor sealing performance of the material chamber, material leakage and pressure loss in the roller press, which affects the operation of the entire roller press.

[0004] Generally, the gate, large side baffle, and lower side baffle are made of wear-resistant plate. The average service life of the gate and large side baffle is 5-6 months, and the average service life of the lower side baffle is 2-3 months. The service life is relatively short, and each time it needs to be replaced manually after stopping the machine, which is costly. At the same time, the gate moves along the guide plate for a long time and reciprocates and rubs, which causes the gate to jam and seriously affects the operation and production of the roller press. Utility Model Content

[0005] The technical problem to be solved by this utility model is to realize a stable feeding device for roller press with anti-eccentric load and wear resistance, improve the service life of the feeding device, avoid problems such as high production cost and large consumption of spare parts, and further improve the operating efficiency of roller press.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a roller press anti-eccentric load wear-resistant stable feeding device, comprising a fixed bracket, large side baffles, a gate plate, a guide plate, and an actuator. The fixed bracket has a feeding port at its top, and a feeding channel is formed by the large side baffles on both sides and the guide plates at the front and rear along the feeding port. A gate plate is provided at the bottom of the feeding channel. The actuator is installed next to the feeding port at the top of the fixed bracket and is connected to the gate plate installed inside the fixed bracket. The gate plate moves along the guide plate.

[0007] The device also includes a wedge pre-tightening structure and a lower baffle. The lower baffle is installed at the bottom of the large side baffle. The wedge pre-tightening structure provides a downward pre-tightening force to the lower baffle, so that the lower baffle is in close contact with the side of the roller sleeve of the roller press.

[0008] The large side baffle is divided into inner and outer parts. The inner baffle is a movable structure with countersunk bolt fixing blocks. The outer baffle is installed on a fixed bracket. Bolt adjustment mechanisms are added to both sides of the inner and outer baffles for up and down adjustment to adjust the sealing performance of the inner wear-resistant plate.

[0009] The fixed bracket is installed on the top of the roller press, the large side baffle is installed on both sides of the fixed bracket by hooks and bolts, and the lower side baffle is installed to the bottom of the large side baffle by bolts.

[0010] The surfaces of the large side baffle and the gate are coated with wear-resistant alloy steel material, the lower side baffle is made of special wear-resistant cast steel material, and the guide plate is made of metal-ceramic composite material.

[0011] The gate is provided in two parts, which together form a double-door structure. One side of each gate is hinged to a large side baffle on one side, and each gate has an independent actuator to drive its rotation.

[0012] The inner wall of the guide plate is provided with two grooves that match the movement trajectory of the gate.

[0013] The upper surface of the gate is provided with multiple downward-extending guide grooves.

[0014] The inner side of the large side baffle is provided with a protruding wing plate above the guide plate. The wing plate is inclined downward at 30-45 degrees. The protruding length of the wing plate is 30% of the length of the single-side gate plate. The distance between the lower edge of the wing plate and the gate plate is 50-100% of the length of the single-side gate plate.

[0015] The gate is provided with an upwardly folding baffle structure on its outer edge, making the gate L-shaped. When the gate is lowered, the baffle is in clearance fit with the roller surface of the roller press.

[0016] This utility model feeding device is simple to operate and easy to install, greatly reducing spare parts costs. At the same time, it effectively solves the edge effect when the material flows in the roller press, reduces material leakage and pressure relief, and improves equipment operating efficiency and service life. Attached Figure Description

[0017] The following is a brief explanation of the content and markings in each of the accompanying drawings in this utility model specification:

[0018] Figure 1 A schematic diagram of the anti-eccentric load wear-resistant stable feeding device for a roller press;

[0019] Figure 2 A schematic diagram of the gate structure of the anti-eccentric load wear-resistant and stable feeding device for a roller press;

[0020] The markings in the above figures are: 1. Fixed bracket; 2-1. Large side baffle; 2-2. Lower side baffle; 3. Gate plate; 4. Guide plate; 5. Actuator; 6. Wedge pre-tightening structure. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, details the specific implementation of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods. This will help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of this utility model.

[0022] Roller press anti-eccentric load wear-resistant stable feeding device, such as Figure 1 As shown, it includes a fixed bracket 1, a large side baffle 2-1, a lower side baffle 2-2, a gate 3, a guide plate 4, an actuator 5, and a wedge pre-tightening structure 6. The fixed bracket 1 has a feeding port at the top. The two guide plates 4 and the two large side baffles 2-1 form a feeding channel. The feeding channel is connected to the feeding port at the top and the discharge port at the bottom, which is located above the roller surface of the roller press. The two guide plates 4 are arranged opposite to each other, and the two large side baffles 2-1 are also arranged opposite to each other, forming a rectangular channel together. The material can enter through the feeding port and fall onto the roller surface of the roller press along the feeding channel.

[0023] The lower baffle 2-2 is installed at the bottom of the large side baffle 2-1, while the large side baffle 2-1 is installed on the lower surface of the fixed bracket 1. The actuator 5 is installed on both sides of the top of the fixed bracket 1 and connected to the gate 3 installed on the inner side of the fixed bracket 1. The large side baffle 2-1 and the gate 3 are made of special wear-resistant alloy steel, or have a wear-resistant alloy steel coating on their surface, which increases their wear resistance.

[0024] The large side baffle 2-1 is divided into two parts, namely, it has inner and outer sides. The inner baffle is a movable structure and is equipped with countersunk bolt fixing blocks. The outer baffle is installed on the fixed bracket 1 and is a fixed component. Bolt adjustment mechanisms are added to both sides of the inner and outer baffles for up and down adjustment to adjust the sealing performance of the inner wear-resistant plate.

[0025] The lower baffle 2-2 is made of special wear-resistant cast steel. Through the matching of various types of materials, the following alloy material configuration is used to achieve the best effect: the ratio of each alloy element is C: 0.34~0.43, Si≤1.72, Mn≤1.48, P≤0.035, S≤0.035, Cr: 0.25~0.29, Mo: 0.3~0.5, N: 0.5~0.9.

[0026] There are two gates 3, which cooperate to form a double-door structure. The two gates 3 are similar to two double doors. Opening the gate opens it, and closing it closes it. The two gates 3 are distributed on both sides and are hinged to the large side baffle 2-1 by a rotating shaft. The two gates 3 are symmetrically arranged. Each gate 3 has an independent actuator 5 to drive it to rotate. The actuator 5 can be driven in any form. For example, the actuator structure is a hydraulic cylinder, and the end of the push rod is directly fixed to the middle position of the gate 3 by a shaft. Alternatively, the actuator 5 can be a mechanism that drives the rotating shaft to rotate, and the rotating shaft drives the gate 3 to rotate. Any form is acceptable. The guide plate 4 is made of a special metal-ceramic composite material. The gate 3 moves along the guide plate 4 in an arc-shaped trajectory. That is, the inner wall of the guide plate 4 is provided with two grooves that match the movement trajectory of the two gates 3. The upper surface of the gate 3 is provided with multiple downward-extending guide grooves. The gate 3 moves up and down along the guide plate 4 without jamming, ensuring that the gate 3 runs along the predetermined track and that the distance between the lower edge of the gate 3 and the surface of the extrusion roller is consistent.

[0027] The gate 3 moves along the guide plate 4, and the wedge pre-tightening structure 6 provides pre-tightening force, making the lower baffle 2-2 tightly adhere to the side of the roller press sleeve. The wedge pre-tightening structure 6 and the lower baffle 2-2 are closely fitted to provide pre-tightening force, making the lower baffle 2-2 tightly adhere to the side of the roller press sleeve, reducing side leakage and enhancing the sealing of the material cavity. The wedge pre-tightening structure 6 is a row of vertically arranged springs. The upper and lower ends of the springs are connected to the strip-shaped support plate. The outer side of the support plate is provided with interlocking sliding plates to prevent the springs from bending. The support plate is then distributed and fixed between the lower baffle 2-2 and the large side baffle 2-1. Multiple springs provide sufficient downward pressure to make the lower baffle 2-2 tightly adhere to the side of the roller press sleeve. A groove that matches the shape of the bottom edge of the lower baffle 2-2 can be pre-set on the side of the roller press sleeve. The groove can further improve the sealing performance and also improve the fit between the feeding device and the roller press.

[0028] The large side baffle 2-1 is tightly fitted to both sides of the gate 3 to form a sealed material cavity, which not only ensures stable material pressure but also does not affect the material's flowability. The large side baffle 2-1 has two wing plates on both sides. The inner side of the large side baffle 2-1 is provided with a protruding wing plate above the guide plate 4. The wing plate is inclined downward at 30-45 degrees. The length of the protruding wing plate is 30% of the length of the gate 3 on one side. The distance between the lower edge of the wing plate and the gate 3 is 50-100% of the length of the gate 3 on one side. Through multiple tests, it can be seen that the size of this wing plate can greatly reduce the edge effect during material flow and improve the smoothness of material transportation.

[0029] like Figure 2As shown, two baffles are provided on the lower edge of the gate 3. When the gate 3 moves, the material will not enter the rear side of the gate 3 along the surface of the extrusion roller, further enhancing the airtightness of the material cavity. That is, the outer extension of the gate 3 is provided with an upwardly folded baffle structure, making the gate 3 have an L-shaped structure. When the gate 3 is lowered, the baffle is in clearance fit with the roller surface of the roller press.

[0030] In general, the fixed bracket 1 is installed on the top of the roller press. The large side baffle 2-1 is installed on both sides of the fixed bracket 1 by hooks and bolts, while the lower side baffle 2-2 is installed to the bottom of the large side baffle 2-1 by bolts. The actuator 5 is installed on both sides of the top of the fixed bracket 1 and is connected to the gate 3 installed inside the fixed bracket 1. The gate 3 moves along the guide plate 4. The wedge pre-tightening structure 6 provides pre-tightening force, so that the lower side baffle 2-2 is tightly attached to the side of the roller sleeve of the roller press. It is worth noting that when the large side baffle 2-1 is worn, tighten the connecting bolts of the large side baffle 2-1, and at the same time, press the wedge pre-tightening structure 6 downward to adjust the gap between the large side baffle 2-1 and the side of the extrusion roller sleeve. When the lower side baffle 2-2 is worn and needs to be replaced, first remove the wedge pre-tightening structure 6, then remove the connecting bolts of the large side baffle 2-1 to the fixed bracket 1, remove the large side baffle 2-1 from the side, and at the same time remove the connecting bolts of the lower side baffle 2-2. During reinstallation, first install the lower side baffle 2-2, then insert the larger side baffle 2-1, fix the bolts connecting the larger side baffle 2-1 to the fixing bracket 1, and finally install the wedge pre-tightening structure 6. This structure is easy to maintain and simple and reliable to operate, which can greatly reduce the company's labor costs.

[0031] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A roller press anti-eccentric load wear-resistant stable feeding device, comprising a fixed bracket, a large side baffle, a gate plate, a guide plate, and an actuator, characterized in that: The fixed bracket has a feeding port at the top, and a feeding channel is formed by large side baffles on both sides and guide plates at the front and rear along the feeding port. A gate is provided at the bottom of the feeding channel. The actuator is installed next to the feeding port at the top of the fixed bracket and is connected to the gate installed inside the fixed bracket. The gate moves along the guide plate. The inner side of the large side baffle is provided with a protruding wing plate above the guide plate. The wing plate is inclined downward at 30-45 degrees. The protruding length of the wing plate is 30% of the length of the gate plate on one side. The distance between the lower edge of the wing plate and the gate plate is 50-100% of the length of the gate plate on one side.

2. The anti-eccentric load, wear-resistant, and stable feeding device for roller presses according to claim 1, characterized in that: The device also includes a wedge pre-tightening structure and a lower baffle. The lower baffle is installed at the bottom of the large side baffle. The wedge pre-tightening structure provides a downward pre-tightening force to the lower baffle, so that the lower baffle is in close contact with the side of the roller sleeve of the roller press.

3. The anti-eccentric load, wear-resistant, and stable feeding device for roller presses according to claim 2, characterized in that: The large side baffle is divided into inner and outer parts. The inner baffle is a movable structure with countersunk bolt fixing blocks. The outer baffle is installed on a fixed bracket. Bolt adjustment mechanisms are added to both sides of the inner and outer baffles for up and down adjustment to adjust the sealing performance of the inner wear-resistant plate.

4. The anti-eccentric load, wear-resistant, and stable feeding device for a roller press according to claim 3, characterized in that: The fixed bracket is installed on the top of the roller press, the large side baffle is installed on both sides of the fixed bracket by hooks and bolts, and the lower side baffle is installed to the bottom of the large side baffle by bolts.

5. The anti-eccentric load, wear-resistant, and stable feeding device for roller presses according to any one of claims 2-4, characterized in that: The surfaces of the large side baffle and the gate are coated with wear-resistant alloy steel material, the lower side baffle is made of wear-resistant cast steel, and the guide plate is made of metal-ceramic composite material.

6. The anti-eccentric load, wear-resistant, and stable feeding device for a roller press according to claim 5, characterized in that: The gate is provided in two parts, which together form a double-door structure. One side of each gate is hinged to a large side baffle on one side, and each gate has an independent actuator to drive its rotation.

7. The anti-eccentric load, wear-resistant, and stable feeding device for roller presses according to claim 6, characterized in that: The inner wall of the guide plate is provided with two grooves that match the movement trajectory of the gate.

8. The anti-eccentric load, wear-resistant, and stable feeding device for a roller press according to claim 7, characterized in that: The upper surface of the gate is provided with multiple downward-extending guide grooves.

9. The anti-eccentric load, wear-resistant, and stable feeding device for a roller press according to claim 8, characterized in that: The gate is provided with an upwardly folding baffle structure on its outer edge, making the gate L-shaped. When the gate is lowered, the baffle is in clearance fit with the roller surface of the roller press.

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