Material blocking detection device for material receiving hopper

Abstract

The material receiving hopper blockage detection device is installed on the material receiving hopper used for collecting pellet stone overflowed due to slipping of a belt conveyor so as to detect the state of the material receiving hopper, the material receiving hopper is modified, a limiting opening is formed in the upper limiting line of the material receiving hopper, and the material receiving hopper blockage detection device can be used for detecting the state of the material receiving hopper. A blocking plate with a spring is installed at a limiting opening through an installed support, when the limiting opening is extruded by materials, it is indicated that the materials are accumulated at the limiting opening at the moment, the spring shrinks to drive an installation rod to move towards the outer side so as to drive a proximity plate and a proximity switch to be disconnected, and at the moment, the belt conveyor can be controlled to stop moving by sending a signal; and meanwhile, the blocking plate is adopted, so that the problem that the blocking plate moves outwards after being stressed, and the material receiving hopper overflows from the upper limiting opening can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor detection of a coal conveying system, and more specifically, to a hopper blockage detection device. Background Art

[0002] Pelletizing is a key method for agglomerating fine ore. The fine ore is first treated with an appropriate amount of water and a binder to form green balls of uniform viscosity and sufficient strength. After drying and preheating, the balls are then calcined in an oxidizing atmosphere to form agglomerates. This method is particularly suitable for processing fine concentrates.

[0003] During the pellet rolling process, it is usually necessary to continuously transport the pellet ore, which requires the use of a belt conveyor. Continuous processing is generally adopted in factories, and due to process limitations, it is necessary to use multiple belts. With traditional video monitoring, it is difficult to accurately monitor the working status of each belt conveyor due to the limitations of the working environment. Therefore, it is easy for the belt to slip, causing the material to block the receiving hopper and overflow the receiving hopper, bury the belt head wheel, and break the belt, resulting in the need to stop work for maintenance and increasing the workload of clearing materials.

[0004] Most of the existing belt conveyor hopper blockage detection devices generally use built-in sensors. Although they can detect whether there is a blockage in the hopper to a certain extent, their detection accuracy is poor and false detection is prone to occur, causing the hopper to be full and overflowing. Moreover, for some sensors set on the outside of the hopper, although they can detect the continuous conveying of pellet ore, when the belt slips, causing the head receiving hopper to be full, even if this structure can detect full material, it is still easy to cause pellet overflow.

[0005] Therefore, it is necessary to propose a hopper blockage detection device to solve the above problems. Utility Model Content

[0006] The utility model provides a hopper blockage detection device to solve the problem that the existing belt conveyor slips, resulting in inaccurate hopper detection and easy overflow of pellet ore in the hopper.

[0007] According to one aspect of the utility model, a hopper blockage detection device is provided, which is used to be installed on one side of the hopper of a belt conveyor, and the hopper blockage detection device includes a mounting frame and a proximity switch mounted on the mounting frame, and a limited opening is provided on the upper part of the hopper; the mounting frame is installed on the outside of the hopper, and a through hole is provided on the mounting frame, and a mounting rod is slidably penetrated through the through hole, a nut is penetrated through one end of the mounting rod, and a blocking plate adapted to the limiting opening is installed at the other end of the mounting rod, and a spring is sleeved on the mounting rod, one side of the spring abuts against the mounting plate, and the other side of the spring abuts against the blocking plate, and a proximity plate coupled to the proximity switch is installed at the free end of the mounting rod close to the nut side, and when the material squeezes the blocking plate and compresses the spring, the proximity plate moves away from the proximity switch to disconnect the proximity switch.

[0008] Preferably, based on the above solution, a discharge port is provided at the lower portion of the receiving hopper, and a cylinder is installed on the receiving hopper, the telescopic rod of the cylinder is connected to a limit plate, and the limit plate is intermittently sealed at the discharge port.

[0009] Preferably, based on the above solution, an inclined material guide plate is provided at the bottom of the receiving hopper.

[0010] Preferably, based on the above solution, the guide plate is located at the lower part of the discharge port and extends to one side of the belt conveyor.

[0011] The utility model discloses a hopper blockage detection device, which is installed on a hopper for collecting pellet stone overflowed by a belt conveyor slipping to detect the state of the hopper. The utility model discloses a hopper blockage detection device, which is installed on a hopper for collecting pellet stone overflowed by a belt conveyor slipping to detect the state of the hopper. The hopper blockage detection device of the utility model, by modifying the hopper, sets a limit opening at the upper limit line of the hopper, and installs a spring-loaded blocking plate at the limit opening through an installed bracket. When material is squeezed at the limit opening, it indicates that material has accumulated at the limit opening. At this time, the spring contracts and drives the installation rod to move outward to drive the proximity plate to disconnect from the proximity switch. At this time, the belt conveyor can be controlled to stop moving by sending a signal, causing the hopper to be full and overflowing. At the same time, a blocking plate is used to effectively prevent the blocking plate from moving outward after being subjected to force, causing the hopper to overflow from the upper limit opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1This is a schematic diagram of the principle structure of the hopper blockage detection device of the utility model;

[0014] Figure 2 This is a partial installation diagram of the proximity switch of the present utility model;

[0015] Description of Figure Numbers:

[0016] Hopper 1, limit opening 11, mounting frame 2, mounting rod 22, nut 23, blocking plate 24, spring 25, proximity plate 26, proximity switch 27, discharge port 12, cylinder 30, limit plate 34, guide plate 4. DETAILED DESCRIPTION

[0017] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0019] To simplify the drawings, only the parts relevant to the present invention are schematically shown in each figure. They do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0020] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0022] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0024] See also Figure 1 , and combined with Figure 2 As shown, a hopper blockage detection device of the present invention is used to be installed on one side of the hopper 1 of the belt conveyor 5, wherein the hopper 1 is used to receive pellet materials caused by the slippage of the belt conveyor 5.

[0025] Among them, the hopper blockage detection device of the present invention includes a mounting frame 2 and a proximity switch 27 installed on the mounting frame 2. The present invention provides a limit opening 11 on the upper part of the hopper 1, which can bear the maximum limit of the pellet material. Once the limit opening 11 is exceeded, overflow will occur.

[0026] The mounting frame 2 of the present invention is installed on the outside of the receiving hopper 1, and a through hole is provided on the mounting frame 2, and a mounting rod 22 is slidably penetrated in the through hole, and a blocking plate 24 and an approach plate 26 are respectively installed at both ends of the mounting rod 22, the blocking plate 24 is adapted to the limit opening 11, and the approach plate 26 is coupled with the proximity switch 27, and a spring 25 is sleeved on the mounting rod 22, one end of the spring 25 abuts against the blocking plate 24, and the other end of the spring 25 abuts against the mounting plate, and a nut 23 is installed on the side of the mounting rod 22 close to the approach plate 26.

[0027] When there is no material accumulated at the limit opening 11, the spring 25 is in an extended state. At this time, the blocking plate 24 is inserted in the limit opening 11. When the material in the receiving hopper 1 is accumulated at the limit opening 11, the material acts on the blocking plate 24, pushing the blocking plate 24 to compress the spring 25, and the spring 25 contracts. In this way, the mounting rod 22 will move outward to drive the proximity plate 26 at the other end of the mounting rod 22 away from the proximity switch 27, so that the proximity switch 27 is disconnected and a signal is sent to the controller to control the belt conveyor 5 to stop, thereby avoiding overflow of the receiving hopper 1 when the warehouse is full.

[0028] The lower part of the receiving hopper 1 of the present invention is provided with a discharge port 12 , and a cylinder 30 is installed on the receiving hopper 1 , the telescopic rod of the cylinder 30 is connected to a limit plate 34 , and the limit plate 34 is intermittently sealed at the discharge port 12 .

[0029] The utility model is used to unload the pellet materials in the receiving hopper 1 through the discharge port 12 on the receiving hopper 1, and uses the cylinder 30 to drive the limit plate 34 to move to control the opening or closing of the discharge port 12.

[0030] The bottom of the receiving hopper 1 of the present invention is provided with an inclined material guide plate 4, which is located below the discharge port 12 and extends to one side of the belt conveyor 5 to prevent the problem of falling bulk materials during the unloading process.

[0031] It should be noted that the elastic force of the spring 25 of the present invention should not be too large. If it is too large, it will cause the accumulation of pellet materials, resulting in the spring 25 not being deformed and causing detection failure. Of course, its elastic force cannot be too small. If it is too small, false detection will occur. Therefore, the elastic force of the spring 25 should be selected appropriately according to actual conditions.

[0032] The utility model relates to a hopper blockage detection device, which is installed on a hopper 1 for collecting pelletized stone materials overflowed by the slipping of the belt conveyor 5 to detect the state of the hopper 1. The utility model relates to a hopper blockage detection device, which is installed on a hopper 1 for collecting pelletized stone materials overflowed by the slipping of the belt conveyor 5 to detect the state of the hopper 1. The utility model relates to a hopper blockage detection device, which is configured by modifying the hopper 1 and setting a limit opening 11 at the upper limit line of the hopper 1. A blocking plate 24 with a spring 25 is installed at the limit opening 11 through an installed bracket. When material is squeezed at the limit opening 11, it indicates that material has been accumulated at the limit opening 11. At this time, the spring 25 contracts and drives the installation rod 22 to move outward to drive the proximity plate 26 to disconnect from the proximity switch 27. At this time, the belt conveyor 5 can be controlled to stop moving by sending a signal, causing the hopper 1 to be full and overflowing. At the same time, the blocking plate 24 is adopted to effectively prevent the blocking plate 24 from moving outward after being subjected to force, causing the hopper 1 to overflow from the upper limit opening.

[0033] Finally, the method of this application is only a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A hopper blockage detection device, used to be installed on one side of the hopper of a belt conveyor, characterized in that: The material hopper blockage detection device includes a mounting frame and a proximity switch mounted on the mounting frame, a limited opening is provided on the upper part of the material hopper; the mounting frame is mounted on the outside of the material hopper, and a through hole is provided on the mounting frame, a mounting rod is slidably passed through the through hole, a nut is passed through one end of the mounting rod, a blocking plate adapted to the limited opening is installed at the other end of the mounting rod, and a spring is sleeved on the mounting rod, one side of the spring abuts against the mounting plate, and the other side of the spring abuts against the blocking plate, a proximity plate coupled to the proximity switch is installed at the free end of the mounting rod close to the nut, and when the material squeezes the blocking plate and compresses the spring, the proximity plate moves away from the proximity switch to disconnect the proximity switch.

2. A hopper blockage detection device according to claim 1, characterized in that: A discharge port is provided at the lower portion of the receiving hopper, and a cylinder is mounted on the receiving hopper. The telescopic rod of the cylinder is connected to a limit plate, and the limit plate is intermittently sealed at the discharge port.

3. A hopper blockage detection device according to claim 2, characterized in that: An inclined material guide plate is provided at the bottom of the material receiving hopper.

4. A hopper blockage detection device according to claim 3, characterized in that: The material guide plate is located at the lower part of the discharge port and extends to one side of the belt conveyor.

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