Double-disc pulping machine

Abstract

The utility model relates to the technical field of papermaking machinery, in particular to a double-disc pulping machine which comprises a grinding chamber and a feed gear, a moving portion of the feed gear is arranged in the grinding chamber and provided with a moving seat, the moving seat is provided with a detection matching portion, the grinding chamber is provided with a detection receding hole, and the detection receding hole is communicated with the feed gear. A linear displacement sensor is arranged outside the grinding chamber, penetrates through the detection receding hole to be matched with the detection matching part and detects the movement amount of the movable seat, the abrasion condition of each grinding disc can be rapidly analyzed by detecting the movement amount of the movable seat through the linear displacement sensor, the labor intensity of manual inspection is reduced, and production safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking machinery technical field, and specifically design a double disc refiner. BACKGROUND

[0002] In the papermaking industry, double disc refiner is a commonly used equipment for grinding fiber raw materials into required paper pulp. The grinding plate of the refiner will gradually wear out during its working process, resulting in a decrease in grinding effect. Therefore, it is crucial to monitor the wear of the grinding plate in real time and replace the grinding plate in a timely manner.

[0003] At present, most refiners use a feed gauge device to detect the wear of the grinding plate. The feed gauge device determines the wear of the grinding plate by measuring the distance moved by the moving seat. However, the accuracy of this device is not high and it is easily affected by human factors. The operator needs to personally check the data of the feed gauge to determine the wear of the grinding plate, which is low in efficiency and may pose a certain safety hazard. Therefore, a more efficient and accurate grinding plate wear detection structure is needed to improve the operating efficiency of the refiner and the product quality of the paper. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a double disc refiner to efficiently and accurately understand the wear of the grinding plate.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a double disc refiner includes a grinding chamber and a feed device. The moving part of the feed device is arranged in the grinding chamber and is installed with a moving seat. A detection matching part is arranged on the moving seat. A detection clearance hole is arranged on the grinding chamber. A linear displacement sensor is arranged outside the grinding chamber. The linear displacement sensor passes through the detection clearance hole and cooperates with the detection matching part to detect the movement of the moving seat. The displacement of the moving seat is detected by the linear displacement sensor to quickly obtain the wear of the grinding plate, which is convenient for the operator to monitor and analyze the wear degree of the grinding plate.

[0006] As a preferred scheme, the linear displacement sensor is a self-resetting spring displacement sensor. The detection direction of the linear displacement sensor is parallel to the moving direction of the moving seat. The linear displacement sensor is arranged through the detection clearance hole, and the detection part of the displacement sensor is connected with the detection matching part.

[0007] As a preferred scheme, the linear displacement sensor has a data transmission module. The data transmission module is used to send the detection result to the controller of the double disc refiner or the computer of the operator.

[0008] As a preferred scheme, the linear displacement sensor is a self-resetting spring rebound electronic ruler.

[0009] As a preferred embodiment, the movable seat is provided with a scale support plate, the scale support plate is provided with a connecting bracket, the outside of the grinding chamber is provided with a mounting bracket, the displacement sensor is mounted on the mounting bracket and the detection part of the displacement sensor is connected to the connecting bracket.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This utility model uses a linear displacement sensor to detect the displacement of the moving seat to determine the wear condition of the grinding disc, which can realize real-time and accurate detection of the wear condition of the grinding disc, improve detection accuracy and efficiency, reduce the labor intensity of manual inspection, and ensure production safety; moreover, the real-time transmission and analysis of grinding disc wear data also provides a basis for grinding disc replacement, which is conducive to improving production efficiency. Attached Figure Description

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the installation of a linear displacement sensor in the grinding chamber;

[0013] In the diagram: 1. Linear displacement sensor, 2. Feeding device, 3. Connecting bracket, 4. Grinding disc, 5. Turntable, 6. Moving base, 7. Scale support plate, 8. Mounting bracket. Detailed Implementation

[0014] 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. Example

[0015] This embodiment provides a dual-disc refiner, such as Figure 1 As shown, it includes a grinding chamber and a feed device 2. The moving part of the feed device 2 is located inside the grinding chamber and a moving seat 6 is installed thereon. The moving seat 6 is provided with a detection mating part. The grinding chamber is provided with a detection clearance hole. A linear displacement sensor 1 is provided outside the grinding chamber. The linear displacement sensor 1 passes through the detection clearance hole and cooperates with the detection mating part to detect the movement of the moving seat 6.

[0016] Specifically, the grinding chamber is provided with a rotating disc 5, and the grinding disc 4 is arranged on the rotating disc 5. The rotating disc 5 is connected to the power main shaft of the double-disc refiner and is driven to rotate by the power main shaft. The main body of the feeding device 2 is installed outside the grinding chamber. The grinding chamber is provided with an adjusting hole corresponding to the feeding device 2. The moving part of the feeding device 2 extends into the grinding chamber through the adjusting hole and is provided with a moving seat 6. The moving seat 6 is provided with a grinding disc 4 mounting position. The grinding disc 4 is arranged in the grinding disc 4 mounting position. The grinding disc 4 is driven to move relative to the grinding disc 4 by the feeding device 2. According to the wear of each grinding disc 4, the feeding device 2 adjusts the position of the grinding disc 4 to maintain the constant distance between the two grinding discs 4.

[0017] The linear displacement sensor 1 is arranged outside the grinding chamber. The linear displacement sensor 1 passes through the detection accommodation hole on the grinding chamber and cooperates with the detection matching part on the rotating disc 5. The linear displacement sensor 1 detects the movement distance of the rotating disc 5, so that the movement distance of the rotating disc 5 can be quickly known, and the adjustment amount of the distance between the two grinding discs 4 can be judged, and finally the wear of each grinding disc 4 can be analyzed.

[0018] The double-disc refiner of the embodiment utilizes the linear displacement sensor 1 to detect the movement distance of the rotating disc 5, so that the wear of each grinding disc 4 can be analyzed. Not only the strength of manual inspection can be reduced, the safety of production can be ensured, but also the stable operation of the double-disc refiner and the product quality of the paper can be maintained.

[0019] As a specific example, the linear displacement sensor 1 is a self-resetting spring displacement sensor. The detection direction of the linear displacement sensor 1 is parallel to the moving direction of the moving seat 6. The linear displacement sensor 1 is arranged through the detection accommodation hole and the detection part of the displacement sensor is connected with the detection matching part.

[0020] Specifically, the linear displacement sensor 1 is a self-resetting spring displacement sensor. The linear displacement sensor 1 is installed outside the grinding chamber. The detection part of the linear displacement sensor 1 passes through the detection accommodation hole and is connected with the detection matching part. When the feeding device 2 drives the rotating disc 5 to move and adjust, the rotating disc 5 drives the detection end of the linear displacement sensor 1 to move. The reset spring in the linear displacement sensor 1 is deformed. The movement distance of the rotating disc 5 can be obtained through the matched device.

[0021] In order to facilitate the monitoring and analysis of the staff, the linear displacement sensor 1 has a data transmission module. The data transmission module is a wired data transmission module or a wireless data transmission module. The detection data of the linear displacement sensor 1 can be sent to the controller of the double-disc refiner or the control terminal device such as the computer of the staff through the data transmission module. The staff can know the detection result of the linear displacement sensor 1 in time, so as to know the displacement data of the moving seat 6.

[0022] In some embodiments, the linear displacement sensor 1 is a self-resetting spring rebound electronic ruler, which has the advantages of small volume, stable operation, and the like, and is convenient to use in cooperation with a controller of the double-disc refiner or a control terminal such as a computer of a staff.

[0023] In some embodiments, the moving seat 6 is provided with a scale support plate 7, the scale support plate 7 is provided with the connecting bracket 3, the outside of the grinding chamber is provided with a mounting bracket 8, and the displacement sensor is arranged on the mounting bracket 8 and the detection part of the displacement sensor is connected with the connecting bracket 3.

[0024] Specifically, the moving seat 6 is provided with the scale support plate 7, the scale support plate 7 cooperates with a scale of the double-disc refiner, and the relative position of the scale and the scale support plate 7 can be manually checked by a staff to check the displacement of the rotating disc 5, the scale support plate 7 is provided with the connecting bracket 3, the outside of the grinding chamber is provided with the mounting bracket 8, the displacement sensor is arranged on the mounting bracket 8, and the detection part of the displacement sensor passes through a detection position and is connected with the connecting bracket 3.

[0025] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example", and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A twin-disc refiner comprising a refining chamber and an infeed device (2), a moving part of the infeed device (2) being arranged inside the refining chamber and mounted with a moving seat (6), characterized in that: The mobile seat (6) is provided with a detection matching part, the grinding chamber is provided with a detection allowing hole, the outside of the grinding chamber is provided with a linear displacement sensor (1), the linear displacement sensor (1) passes through the detection allowing hole and matches with the detection matching part and detects the moving amount of the mobile seat (6).

2. A twin-disc pulp refiner according to claim 1, characterized in that: The linear displacement sensor (1) is a self-resetting spring type displacement sensor, the detection direction of the linear displacement sensor (1) is parallel with the moving direction of the mobile seat (6), the linear displacement sensor (1) is arranged through the detection allowing hole and the detection part of the displacement sensor is connected with the detection matching part.

3. A twin-disc pulp refiner according to claim 2, characterized in that: The linear displacement sensor (1) has a data transmission module.

4. A twin-disc pulp refiner according to claim 2, characterized in that: The linear displacement sensor (1) is a self-resetting spring rebound type electronic ruler.

5. A twin-disc pulp refiner according to claim 2, characterized in that: The mobile seat (6) is provided with a scale support plate (7), the scale support plate (7) is provided with a connecting bracket (3), the outside of the grinding chamber is provided with a mounting bracket (8), the displacement sensor is arranged on the mounting bracket (8) and the detection part of the displacement sensor is connected with the connecting bracket (3).

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