A roller press feeding device with adjustable feed pressure

Abstract

This utility model relates to the technical field of cement production equipment and discloses an adjustable feed pressure roller press feeding device, including a feed hopper and a feed pipe connected to its bottom. The device is characterized by: a pressure-distributing pipe at the connection between the feed pipe and the feed hopper; a pressure-distributing container at the other end of the pressure-distributing pipe connected to a top-connected pipe to the feed hopper; a feeding container located below the feed hopper connected to the outside of the pressure-distributing container; a check valve at the connection between the pressure-distributing container and the feeding container; an electric push rod with a telescopic end extending into the feeding container; a push plate adapted to the cross-section of the inner wall of the feed hopper connected to the telescopic end of the electric push rod; and a check valve extending into the feeding container and preventing material from returning to the feeding container inside the feed hopper. This adjustable feed pressure roller press feeding device has the advantage of preventing a decrease in roller press performance caused by excessive material addition at one time.

Description

Technical Field

[0001] This utility model relates to the field of cement production equipment technology, specifically to a roller press feeding device with adjustable feed pressure. Background Technology

[0002] The roller press used in cement production, also known as an extrusion mill or roller mill, is a machine in which a fixed roller and a movable roller rotate at low speed relative to each other, driven by a motor reducer. Material is continuously fed in from above the two rollers, and the hydraulic system applies pressure to the material between the rollers through the oil cylinder, bearing seat and rollers. The material particle size is reduced by high pressure extrusion.

[0003] During operation, the material pressure at the feed end of the roller press can easily compress the material that has entered the press, causing the material to pass through the roller press too quickly. This can lead to the particle size of the material inside failing to meet the standards. Secondary processing through the roller press greatly reduces the overall work efficiency. Therefore, a device is needed to effectively adjust the material pressure at the feed end of the roller press. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an adjustable feed device for a roller press. It has the advantage of preventing the roller press from becoming less efficient due to excessive material addition at one time. It also solves the problem that during operation, the material pressure at the feed end of the roller press can easily compress the material already inside, causing the material to pass through the roller press too quickly. This can lead to the particle size of the internal material failing to meet standards, and secondary processing through the roller press greatly reduces the overall work efficiency.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A roller press feeding device with adjustable feed pressure includes a feed hopper and a feed pipe connected to its bottom. The device is characterized in that: a pressure-distributing pipe is provided at the connection between the feed pipe and the feed hopper; the other end of the pressure-distributing pipe is connected to a pressure-distributing container whose top is connected to the feed hopper's connecting pipe; a feeding container located below the feed hopper is connected to the outside of the pressure-distributing container; a check valve is provided at the connection between the pressure-distributing container and the feeding container; an electric push rod with a telescopic end extending into the feeding container is provided outside the feeding container; a push plate adapted to the cross-section of the inner wall of the feed hopper is connected to the telescopic end of the electric push rod; a check valve extending into the feeding container and used to prevent material from returning to the feeding container is provided inside the feed hopper; and a material sensing component is provided inside the pressure-distributing container.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the material sensing component consists of a sensing frame and two reflective photoelectric switches, with the two reflective photoelectric switches respectively corresponding to the trigger limit and the extreme alarm limit.

[0010] Furthermore, the bottom of the pressure-distributing container is inclined toward the side of the feeding container, the check plate is hinged to the connection between the pressure-distributing container and the feeding container, and a limiting block is fixed to the bottom wall of the pressure-distributing container to restrict the check plate.

[0011] Furthermore, the check valve includes a sliding sleeve fixed inside the feed hopper, the side wall of the sliding sleeve is provided with a material hole, and a push block that blocks the material hole is slidably connected inside the sliding sleeve.

[0012] Furthermore, the bottom of the push block is inclined and the length of the short side is adapted to the height of the material hole, and the distance between the top of the material hole and the inner top wall of the sliding sleeve is adapted to the length of the short side of the push block.

[0013] Furthermore, the push block is provided with a slider extending into the inside of the feed hopper and slidably connected thereto, and the limit displacement distance of the slider is adapted to the length of the short side of the push block.

[0014] This utility model provides a roller press feeding device with adjustable feed pressure. By setting up a feed hopper, materials can be fed into the roller press during use. Under the action of gravity, the materials enter the feed pipe. When the material pressure at the feed pipe is too high, some materials enter the pressure distribution container through the pressure distribution pipe, thereby reducing the material in the feed hopper and relieving the material pressure at the feed pipe. At the same time, the material in the pressure distribution container enters the feeding container under the action of gravity. By using an electric push rod in conjunction with a push plate, the material in the feeding container can be pushed into the feed hopper, thereby effectively utilizing the material. This device has the advantage of preventing the roller press from deteriorating due to excessive material addition at one time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the material sensing component of this utility model;

[0017] Figure 3 This is a schematic diagram of the anti-return component structure of this utility model;

[0018] Figure 4 This is a diagram showing the connection between the push block and the feed hopper of this utility model.

[0019] In the diagram: 1. Feed hopper; 2. Feed pipe; 3. Pressure dividing pipe; 4. Pressure dividing container; 5. Feeding container; 6. Electric push rod; 7. Push plate; 8. Check valve; 81. Sliding sleeve; 82. Material hole; 83. Push block; 9. Material sensing component; 91. Sensing frame; 92. Reflective photoelectric switch. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a roller press feeding device with adjustable feed pressure, including a feed hopper 1 and a feed pipe 2 connected to its bottom. A pressure-dividing pipe 3 is provided at the connection between the feed pipe 2 and the feed hopper 1. The other end of the pressure-dividing pipe 3 is connected to a pressure-dividing container 4 whose top is connected to the feed hopper 1. A feeding container 5 located below the feed hopper 1 is connected to the outside of the pressure-dividing container 4. A check plate is provided at the connection between the pressure-dividing container 4 and the feeding container 5. An electric push rod 6 with a telescopic end extending into the outside of the feeding container 5 is provided. A push plate 7 adapted to the cross-section of the inner wall of the feed hopper 1 is connected to the telescopic end of the electric push rod 6. A check member 8 extending into the feeding container 5 and used to prevent material from returning to the feeding container 5 is provided inside the feed hopper 1. A material sensing member 9 is provided inside the pressure-dividing container 4.

[0022] Furthermore, the material sensing component 9 consists of a sensing frame 91 and two reflective photoelectric switches 92, which respectively correspond to the push trigger limit and the limit alarm limit.

[0023] Furthermore, the bottom of the pressure-distributing container 4 is inclined toward the side of the feeding container, the check plate is hinged at the connection between the pressure-distributing container 4 and the feeding container 5, and a limiting block is fixed to the bottom wall of the pressure-distributing container 4 to restrict the check plate.

[0024] Specifically, the side wall of the feeding container 5 should be equipped with an openable and closable plate. The material that has leaked into the push plate 7 can be taken out through the openable and closable plate to prevent jamming. At the same time, the push trigger limit should be located below the connection point between the pressure dividing container 4 and the feeding container 5. The setting of the push trigger limit can prevent excessive material from accumulating inside the pressure dividing container 4. The check plate is hinged by a hydraulic hinge. The setting of the hydraulic hinge can ensure that it requires a certain base force when rotating and tends to return to the reset state after the material is released.

[0025] Furthermore, the check valve 8 includes a sliding sleeve 81 fixed inside the feed hopper 1. The side wall of the sliding sleeve 81 is provided with a material hole 82. A push block 83 that blocks the material hole 82 is slidably connected inside the sliding sleeve 81.

[0026] Furthermore, the bottom of the push block 83 is inclined and the length of its short side is adapted to the height of the material hole 82, and the distance between the top of the material hole 82 and the inner top wall of the sliding sleeve 81 is adapted to the length of the short side of the push block 83.

[0027] Furthermore, the push block 83 is provided with a slider extending into the inside of the feed hopper 1 and slidably connected thereto. The limit displacement distance of the slider is adapted to the length of the short side of the push block 83.

[0028] Under normal conditions, the check valve mechanism causes the push block 83 to block the material hole 82 due to gravity. At this time, the material inside the feed hopper 1 cannot pass through the material hole 82 to reach the feed container 5. When the material inside the feed container 5 moves upward under the push of the electric push rod 6, the material will first push the push block 83 upward so that the material hole 82 is no longer blocked and moves to its limit. This allows the material to pass through the material hole 82 and enter the feed hopper 2 under the influence of the inclined surface of the push block 83, thus realizing the feeding operation. When the electric push rod 6 is reset, the push block 83 falls down under the influence of gravity and blocks the material hole 82 again, thus completing the feeding operation.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll press material feeding device capable of adjusting the material pressure, comprising a material hopper (1) and a material pipe (2) in communication with the bottom of the material hopper (1), characterized in that: A pressure-dividing pipe (3) is provided at the connection between the feed pipe (2) and the feed hopper (1). The other end of the pressure-dividing pipe (3) is connected to a pressure-dividing container (4) whose top is connected to the feed hopper (1). The outside of the pressure-dividing container (4) is connected to a feeding container (5) located below the feed hopper (1). A check plate is provided at the connection between the pressure-dividing container (4) and the feeding container (5). An electric push rod (6) with its telescopic end extending into the outside of the feeding container (5) is provided. The telescopic end of the electric push rod (6) is connected to a push plate (7) that is adapted to the cross-section of the inner wall of the feed hopper (1). A check member (8) extending into the feeding container (5) and used to prevent material from returning to the feeding container (5) is provided inside the feed hopper (1). A material sensing member (9) is provided inside the pressure-dividing container (4).

2. The adjustable feed pressure roller press feeding device according to claim 1, characterized in that: The material sensing component (9) consists of a sensing frame (91) and two reflective photoelectric switches (92), which respectively correspond to the push trigger limit and the limit alarm limit.

3. The adjustable feed pressure roller press feeding device according to claim 1, characterized in that: The bottom of the pressure-distributing container (4) is inclined toward the side of the feeding container. The check plate is hinged at the connection between the pressure-distributing container (4) and the feeding container (5). A limiting block is fixed to the bottom wall of the pressure-distributing container (4) to restrict the check plate.

4. The adjustable feed pressure roller press feeding device according to claim 1, characterized in that: The check valve component (8) includes a sliding sleeve (81) fixed inside the feed hopper (1). The side wall of the sliding sleeve (81) is provided with a material hole (82). A push block (83) that blocks the material hole (82) is slidably connected inside the sliding sleeve (81).

5. The adjustable feed pressure roller press feeding device according to claim 4, characterized in that: The bottom of the push block (83) is inclined and the length of the short side is adapted to the height of the material hole (82). The distance between the top of the material hole (82) and the inner top wall of the sliding sleeve (81) is adapted to the length of the short side of the push block (83).

6. The adjustable feed pressure roller press feeding device according to claim 5, characterized in that: The push block (83) is provided with a slider extending into the feed hopper (1) and slidably connected thereto. The limit displacement distance of the slider is adapted to the length of the short side of the push block (83).

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