A data acquisition and transmission device for detecting the wear of mill liner

Abstract

A data acquisition and transmission device for detecting the wear of a mill liner, comprising a detection bolt, a data processor, a mounting plate, an outer mounting nut, an inner mounting nut, a connecting wire, etc. The data processor is embedded in the mounting plate, a hole is punched in the mounting plate, and the detection bolt is fixedly connected through the inner and outer mounting nuts. The length of the wear of the sensor probe is converted into readable data by the data processor and transmitted to an external base station through an information transmission element. The device solves the problem of detecting the wear of the mill liner without stopping the machine, and at the same time improves the mechanical structure of the original wear measuring device in the industry, making the device more adaptable to complex working conditions of industrial applications. At the same time, because the device is reusable, it is more practical and reduces costs compared with previous wear devices in the industry.

Description

Technical Field

[0001] The invention relates to the technical field of mills, in particular to a data acquisition and transmission device for detecting the wear amount of a mill liner. Background Art

[0002] In the prior art, in order to avoid serious wear of the liner, which in turn damages the mill and reduces the grinding efficiency, the industry has taken measures to regularly stop the mill to check the wear of the liner. Since the liner covers the entire inner cavity surface of the mill, there is a lack of direct detection methods. The current commonly used methods for detecting the wear of the liner are direct method and indirect method. The direct method is to remove the liner and measure it directly. The indirect method is to detect the changes in the inner wall space of the mill and then infer the wear of the liner.

[0003] The above-mentioned methods for detecting the wear of the mill liner must firstly be performed when the mill is shut down, and secondly, they all require entering the interior of the mill, which is costly and difficult to operate.

[0004] At present, the prior art has also proposed a method of sealing the data acquisition and transmission device inside the bolt or welding it to the bolt head to detect the wear of the mill liner in the non-stop state. However, this device will cause damage to the entire device due to the wear of the bolts, and does not have the best protection effect, and the mechanical structure needs to be improved. At the same time, this liner wear detection device can only be used once and is a consumable part. It cannot be used again after wear, resulting in a huge waste of resources. Summary of the invention

[0005] In order to solve the technical problems that the detection device in the prior art needs to stop the mill for operation during detection, which is costly and cumbersome to operate; the detection bolt is a consumable part and has high requirements for installation technology. The present invention provides a data acquisition and transmission device for detecting the wear of the mill liner, which can quickly detect the wear of the mill liner in real time and transmit the detection data, and can effectively protect the data acquisition and transmission components to achieve multiple reuse.

[0006] The present invention solves the above technical problems and adopts the following technical solutions: a data acquisition and transmission device for detecting the wear of a mill liner, comprising a detection bolt and a data processor, one end of the detection bolt passes through the mill cylinder and the mill liner in sequence and is flush with the inner edge of the mill liner, the other end of the detection bolt extends out of the outer side of the mill cylinder, the interior of the detection bolt is a hollow structure, and a sensor probe is sealed and fixed to the hollow structure part by an insulating casting material, and the sensor probe is connected to the data processor through a connecting wire;

[0007] A mounting plate is also provided at one end of the detection bolt extending out of the mill cylinder, and the mounting plate is sleeved on the detection bolt. The upper and lower sides of the mounting plate are respectively provided with an outer mounting nut and an inner mounting nut for fixing the mounting plate and the detection bolt. The data processor is fixedly arranged on the upper surface of the mounting plate, and an information transmission element is arranged inside the data processor. The data processor transmits the collected data information to an external base station through the information transmission element.

[0008] Preferably, the sensor probe is arranged in the hollow structure portion of the detection bolt along the length direction of the detection bolt.

[0009] Preferably, the sensor probe includes an electrode and a linear resistor, the linear resistor is arranged along the length direction of the detection bolt, and the length of the linear resistor is not less than the thickness of the mill liner, and the electrode and the linear resistor are connected to the data processor through connecting wires.

[0010] Preferably, a wire hole is provided at one end of the detection bolt away from the mill cylinder, and a connecting wire is connected to an external data processor through the wire hole.

[0011] Preferably, the data processor is provided with a wire installation head, and the connecting wire is connected to the data processor through the wire installation head.

[0012] Preferably, a through hole is provided on the mounting plate, and the mounting plate is sleeved on the detection bolt through the through hole.

[0013] Preferably, the data processor has a housing made of stainless steel.

[0014] Beneficial effects:

[0015] 1. The data acquisition and transmission device of the present invention solves the problem of detecting the wear of the liner without stopping the machine, thereby improving the utilization rate of the liner, avoiding the wear of the mill equipment, and improving the production efficiency.

[0016] 2. The data acquisition and transmitting device of the present invention realizes the independent setting and installation of the data processor outside the mill through the setting of the mounting plate and the inner and outer mounting nuts, which not only reduces the installation difficulty of the detection bolts and improves the installation efficiency, but also successfully solves the protection problem of the data processing and transmitting elements, making it reusable, thereby reducing costs and saving energy.

[0017] 3. The data acquisition and transmission device of the present invention optimizes the installation plate and the separate structure of the data processor and the detection bolt, so that when installing the data acquisition component - the detection bolt, it can be installed just like installing ordinary lining bolts, and no special training is required for the installation workers; after the data acquisition component is installed, the professional will install the data processor with information transmission function, and connect the two through a cable. This operation mode has clear division of labor, simple operation, strong practicality, and enables the overall device to be more adaptable to complex working conditions of industrial applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Top view;

[0020] Markings in the diagram: 101, mill cylinder, 102, mounting plate, 103, data processor, 104, connecting wires, 105, detection bolts, 106, external mounting nuts, 107, internal mounting nuts, 108, wire mounting heads. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings, but the purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention, and the present invention is not limited to the following embodiments.

[0022] As shown in the figure, a data acquisition and transmission device for detecting the wear of a mill liner includes a detection bolt 105 arranged in a mill cylinder 101, a mounting plate 102, a data processor 103, a connecting wire 104, an outer mounting nut 106, an inner mounting nut 107 and a wire mounting head 108.

[0023] Among them, one end of the detection bolt 105 passes through the mill cylinder 101 and the mill liner in sequence, and is flush with the inner edge of the mill liner. The other end of the detection bolt 105 extends out of the outside of the mill cylinder 101. The interior of the detection bolt 105 is a hollow structure, and the hollow structure part seals the sensor probe inside the detection bolt 105 through an insulating castable. The sensor probe includes an electrode and a linear resistor. The linear resistor is arranged along the length direction of the detection bolt 105, and the length of the linear resistor is not less than the thickness of the mill liner. The end of the linear resistor is flush with the inner edge of the mill liner. A wire hole is opened at the end of the detection bolt 105 away from the mill cylinder 101. The electrode and the linear resistor are connected to the external data processor 103 through the connecting wire 104, and the connecting wire 104 passes through the wire hole at the end of the detection bolt 105.

[0024] A mounting plate 102 is also provided at one end of the detection bolt 105 extending out of the mill cylinder 101, and the mounting plate 102 is sleeved on the detection bolt 105, and the upper and lower sides of the mounting plate 102 are respectively provided with an outer mounting nut 106 and an inner mounting nut 107 for fixing the mounting plate 102 and the detection bolt 105. The data processor 103 is fixedly arranged on the upper surface of the mounting plate 102, and an information transmission element is arranged inside the data processor 103. The data processor 103 transmits the collected data information to an external base station through the information transmission element for data exchange.

[0025] The data processor 103 is provided with a wire installation head 108 , and the connecting wire 104 is connected to the data processor 103 through the wire installation head 108 .

[0026] Preferably, the data processor 103 is provided with an external protective casing, and the protective casing is made of stainless steel.

[0027] The sensor probe in the present invention includes an electrode and a linear resistor parallel to the electrode. When the probe is worn, its resistance value changes linearly with the change of length. Through the change of resistance value, the length corresponding to the current resistance value, that is, the thickness of the lining plate, can be calculated. Common methods for converting the probe resistance signal into voltage and current signals include bridge method, constant voltage source method, constant current source method, etc.

[0028] The length of the sensor probe worn away is converted into an electrical signal, which is then sent to the data processor after A / D conversion to convert it into readable data, and the data is transmitted back to the external base station through the information transmission element. This system solves the problem of detecting the wear of the lining without stopping the machine, and at the same time improves the mechanical structure of the original wear measurement device in the industry, making the device more adaptable to the complex working conditions of industrial applications.

[0029] The data processor is connected to the grinding mill programmable controller through a serial communication line, and is connected to the central control operator station through an Ethernet communication line to realize a human-machine exchange function.

[0030] The present application adopts a method of separately setting the detection bolts for data collection and the data processor information transmission element for data transmission. When installing the data collection device, it can be installed just like installing ordinary lining bolts, and there is no need for special training for the installation workers. After the data collection device is installed, the professional will install the transmitter and connect the two through a cable. The mechanical structure of the original wear measurement device in the industry is improved, making the device more adaptable to the complex working conditions of industrial applications.

[0031] The parts not described in detail in the above content are prior art, so they are not described in detail.

Claims

1. A data acquisition and transmission device for detecting wear of a mill liner, comprising a detection bolt (105) and a data processor (103), characterized in that: One end of the detection bolt (105) passes through the mill cylinder (101) and the mill liner in sequence and is flush with the inner edge of the mill liner. The other end of the detection bolt (105) extends out of the outside of the mill cylinder (101). The interior of the detection bolt (105) is a hollow structure, and a sensor probe is sealed and fixed to the hollow structure portion through an insulating castable. The sensor probe comprises an electrode and a linear resistor. The linear resistor is arranged along the length direction of the detection bolt (105), and the length of the linear resistor is not less than the thickness of the mill liner. The electrode and the linear resistor are connected to the data processor (103) through a connecting wire (104). A wire hole is provided at one end of the detection bolt (105) away from the mill cylinder (101), and the connecting wire (104) is connected to an external data processor (103) through the wire hole. A mounting plate (102) is also provided at one end of the detection bolt (105) extending out of the mill barrel (101); the mounting plate (102) is sleeved on the detection bolt (105); and an outer mounting nut (106) and an inner mounting nut (107) for fixing the mounting plate (102) and the detection bolt (105) are respectively provided on the upper and lower sides of the mounting plate (102); the data processor (103) has a housing made of stainless steel; the housing of the data processor (103) is fixedly arranged on the upper surface of the mounting plate (102); an information transmission element is provided inside the data processor (103); and the data processor (103) transmits collected data information to an external base station via the information transmission element.

2. The data acquisition and transmission device for detecting the wear of a mill liner according to claim 1 is characterized in that: The data processor (103) is provided with a wire installation head (108), and the connecting wire (104) is connected to the data processor (103) through the wire installation head (108).

3. The data acquisition and transmission device for detecting the wear of a mill liner according to claim 1 is characterized in that: A through hole is provided on the mounting plate (102), and the mounting plate (102) is sleeved on the detection bolt (105) through the through hole.

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