Dust explosion-proof control device

Abstract

The embodiment of the utility model provides a dust explosion-proof control device, and relates to the technical field of sensing control. The dust explosion-proof control device comprises a flour mill, a dust detection sensor, a control device and an alarm module, wherein the flour mill comprises a stock bin main body, a flour mill main body and a motor arranged in the flour mill main body; according to the embodiment of the invention, the motor in the flour mill main body works, grains are crushed, the dust detection sensor is arranged on the outer side of the stock bin main body, a feedback signal is sent to the control device when the dust concentration is detected to reach a standard limit value, and the control device receives the feedback signal and sends a control signal to control the motor to stop working; the flour mill main body is stopped in time, continuous generation of dust is avoided, meanwhile, the alarm is automatically given, automatic control processing is achieved in the whole process, the processing efficiency is high, and the safety risk is reduced.

Description

Technical Field

[0001] The present application relates to the field of sensor control technology, and in particular to a dust explosion-proof control device. Background Art

[0002] In the process of grain grinding, due to the sealing of the equipment during operation, a certain amount of grain dust will be generated around the mill when the grain is crushed. When the dust accumulates to a certain concentration, a dust explosion risk is prone to occur. In actual production, when the mill is operating normally, there is no fixed person on duty at the site. Operators carry out operations upstairs and downstairs according to production needs. Due to the different distribution of floors for different processes and the noise interference on the site of each floor during koji production, when the dust concentration at the mill reaches the preset value and the gas alarm module is activated, there is a risk that the operator cannot hear the alarm sound in the first time and cannot arrive at the site in the first time to implement dust concentration control measures. At the same time, the method of relying heavily on on-site personnel to handle is inefficient. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a dust explosion prevention control device to solve the problems of high safety risks and low processing efficiency in existing dust explosion prevention control methods.

[0004] The embodiment of the present application provides a dust explosion-proof control device, comprising: a grinding mill, a dust detection sensor, a control device and an alarm module, wherein the grinding mill comprises a silo body, a grinding mill body and a motor arranged in the grinding mill body; the grinding mill body is connected to the silo body, the dust detection sensor is arranged on the outside of the silo body, and the control device is connected to the dust detection sensor, the alarm module and the motor;

[0005] The dust detection sensor is used to send a feedback signal to the control device when it detects that the dust concentration reaches the standard limit; the control device is used to send a control signal to control the motor to stop working after receiving the feedback signal, and send an alarm signal to control the alarm module to alarm.

[0006] In the above implementation process, the motor in the grinding mill body works to crush the grain. By arranging a dust detection sensor on the outside of the silo body, when it is detected that the dust concentration reaches the standard limit, a feedback signal is sent to the control device. The control device receives the feedback signal, sends a control signal to control the motor to stop working, and sends an alarm signal to control the alarm module to alarm. The grinding mill body is shut down in time to avoid the continued generation of dust. At the same time, the alarm is automatically sounded. The whole process realizes automated control and processing, with high processing efficiency and reduced safety risks.

[0007] Furthermore, the dust detection sensor is arranged at the lower end portion of the outer side of the silo body.

[0008] In the above implementation process, the dust detection sensor is arranged at the lower end of the outer side of the silo body, so as to realize faster and more accurate detection of the dust of the grinding mill.

[0009] Furthermore, the grinding mill body is connected to the silo body through a feed pipe.

[0010] In the above implementation process, the mill body and the silo body are connected through the feed pipe, so that the grain enters the mill body from the silo body through the feed pipe, thereby ensuring the normal operation of the mill.

[0011] Furthermore, a grain observation window is provided on the feed pipe.

[0012] In the above implementation process, the grain transportation situation in the feed pipe is observed through the grain observation window, so as to understand the working situation of the mill and improve the practicality of the mill.

[0013] Furthermore, the control device is connected to the dust detection sensor via a wire tube.

[0014] In the above implementation process, the control device and the dust detection sensor are connected through a wire tube, so that the feedback signal of the dust detection sensor is sent to the control device, thereby improving the transmission stability of the signal.

[0015] Furthermore, the control device is connected to the motor via a wire tube.

[0016] In the above implementation process, the control device and the motor are connected through a wire tube, so that the motor control signal of the control device is sent to the motor, thereby improving the transmission stability of the signal.

[0017] Furthermore, the control device is connected to the alarm module via a wire tube.

[0018] In the above implementation process, the control device and the alarm module are connected through the wire tube, so that the alarm control signal of the control device is sent to the alarm module, thereby improving the transmission stability of the signal.

[0019] Furthermore, the silo body includes a first cylindrical cavity, a first conical cavity that is larger at the top and smaller at the bottom, and a second cylindrical cavity that are sequentially arranged.

[0020] In the above implementation process, the silo body is formed by sequentially arranging a first cylindrical cavity, a first conical cavity which is larger at the top and smaller at the bottom, and a second cylindrical cavity, so that the silo body can better store grain.

[0021] Furthermore, the feed pipe comprises a third cylindrical cavity and a first cavity which is smaller at the top and larger at the bottom, and the third cylindrical cavity is connected to the first cavity.

[0022] In the above implementation process, the feeding pipe formed by the third cylindrical cavity and the first cavity which is smaller at the top and larger at the bottom enhances the grain conveying efficiency.

[0023] Furthermore, the grinding mill body comprises a second cavity which is smaller at the top and larger at the bottom, and a fourth square cavity, and the second cavity is connected to the fourth square cavity.

[0024] In the above implementation process, the grinding mill body formed by the second cavity which is smaller at the top and larger at the bottom and the fourth square cavity ensures that the grain can be better ground in the grinding mill body and reduces the splashing of grain during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of a dust explosion-proof control device provided in an embodiment of the present application.

[0027] Icons: 10-grinding mill; 100-bin body; 200-grinding mill body; 201-grain observation window; 202-motor; 203-feeding pipe; 301-dust detection sensor; 302-wire pipe; 303-control device; 304-alarm module. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a dust explosion prevention control device 303 provided in an embodiment of the present application. Please refer to Figure 1The dust explosion-proof control device 303 includes a grinding mill 10, a dust detection sensor 301, a control device 303 and an alarm module 304. The grinding mill 10 includes a silo body 100, a grinding mill body 200 and a motor 202 arranged in the grinding mill body 200; the grinding mill body 200 is connected to the silo body 100, the dust detection sensor 301 is arranged on the outside of the silo body 100, and the control device 303 is connected to the dust detection sensor 301, the alarm module 304 and the motor 202; the dust detection sensor 301 is used to send a feedback signal to the control device 303 when it detects that the dust concentration reaches the standard limit; the control device 303 is used to send a control signal after receiving the feedback signal to control the motor 202 to stop working, and send an alarm signal to control the alarm module 304 to alarm.

[0031] Specifically, through the linkage between the dust detection sensor 301, the control device 303 and the alarm module 304, when the dust detection sensor 301 detects that the dust concentration reaches the standard limit, the feedback signal is transmitted to the control device 303 through the wire tube 302, and the control device 303 immediately sends a control signal to the motor 202 to control the motor 202 to stop working, cut off the power supply of the motor 202, and stop the operation of the grinding mill body 200, thereby solving the root cause of dust generation at the source. Since the grinding mill body 200 is shut down immediately, the dust concentration on site no longer increases, and the safety hazard of dust explosion is eliminated in time, which is well adapted to the special situation of unmanned production site. At the same time, the control device 303 transmits the alarm control signal to the alarm module 304, and the alarm module 304 is immediately started and emits an alarm sound, which can remind the operator to take immediate measures, thereby ensuring both production safety and the smooth progress of production.

[0032] It can be understood that when the dust sensor detector detects that the dust concentration reaches the standard limit, a feedback signal is sent to the control device 303, and the control device 303 controls the operation of the alarm module 304 and the motor 202 according to the feedback signal. There are many existing implementation methods for this process, and the embodiments of the present application are not limited to this.

[0033] In the above-mentioned implementation process, the dust explosion-proof control device 303 of the present application is used to avoid the continuous accumulation of dust concentration when the dust concentration on site reaches the explosion limit. Since the power supply of the motor 202 of the grinding mill main body 200 is immediately cut off, the problem of the delay in the operator rushing to the site from other workstations to deal with the potential safety hazard after the alarm module 304 sounds an alarm is solved. The entire process is automatically controlled and processed with high processing efficiency, which reduces safety risks. At the same time, there is no need for manpower to be on duty at the grinding mill 10, which reduces labor costs.

[0034] In some embodiments, the dust detection sensor 301 is disposed at the lower end of the outer side of the silo body 100; the dust detection sensor 301 is disposed at the lower end of the outer side of the silo body 100, and the dust detection sensor 301 can quickly detect the dust concentration. When the dust concentration reaches the standard limit, a feedback signal is sent to the control device 303 in time, thereby realizing rapid detection of dust in the grinding mill 10. At the same time, the dust detection sensor 301 is disposed at the lower end of the outer side of the silo body 100 to improve the accuracy of dust detection.

[0035] In some embodiments, the grinding mill body 200 is connected to the silo body 100 via a feed pipe 203; the grinding mill body 200 and the silo body 100 are connected via the feed pipe 203, so that grain enters the grinding mill body 200 from the silo body 100 through the feed pipe 203, thereby ensuring the normal operation of the grinding mill 10.

[0036] In some embodiments, a grain observation window 201 is provided on the feed pipe 203; the grain transportation situation in the feed pipe 203 is observed through the grain observation window 201 so as to understand the working condition of the grinding mill 10. It can be understood that whether the grinding mill 10 is in a working state can be observed from the grain observation window 201 to monitor whether the grinding mill 10 is operating normally or malfunctioning, thereby improving the practicality and convenience of the grinding mill 10.

[0037] In some embodiments, the control device 303 is connected to the dust detection sensor 301 through the wire tube 302, so as to send the feedback signal of the dust detection sensor 301 to the control device 303, thereby ensuring smooth transmission of the signal and improving the transmission stability of the signal.

[0038] In some embodiments, the control device 303 is connected to the motor 202 via the wire tube 302, so as to send the motor control signal of the control device 303 to the motor 202, thereby ensuring smooth transmission of the signal and improving the transmission stability of the signal.

[0039] In some embodiments, the control device 303 is connected to the alarm module 304 via the wire tube 302, so as to send the alarm control signal of the control device 303 to the alarm module 304, thereby ensuring smooth transmission of the signal and improving the transmission stability of the signal.

[0040] In some embodiments, the silo body 100 includes a first cylindrical cavity, a first conical cavity that is larger at the top and smaller at the bottom, and a second cylindrical cavity that are arranged in sequence; the silo body 100 is formed by the first cylindrical cavity, the first conical cavity that is larger at the top and smaller at the bottom, and the second cylindrical cavity that are arranged in sequence, so that the silo body 100 can better store grain.

[0041] In some embodiments, the feed pipe 203 includes a third cylindrical cavity and a first cavity that is smaller at the top and larger at the bottom, and the third cylindrical cavity is connected to the first cavity; the feed pipe 203 formed by the third cylindrical cavity and the first cavity that is smaller at the top and larger at the bottom enhances the grain transportation efficiency.

[0042] In some embodiments, the grinding mill body 200 includes a second cavity that is small at the top and large at the bottom, and a fourth square cavity, and the second cavity is connected to the fourth square cavity; the grinding mill body 200 formed by the second cavity that is small at the top and large at the bottom and the fourth square cavity ensures that the grain can be better ground in the grinding mill body 200, reducing the splashing of grain during the grain grinding process.

[0043] Optionally, the alarm module 304 adopts a gas alarm controller.

[0044] As described above, when the dust explosion-proof control device 303 of the embodiment of the present application is working, the grain enters the grinding mill body 200 from the silo body 100 through the feed pipe 203, and the grain transportation situation can be observed through the grain observation window 201 on the feed pipe 203. The motor 202 in the grinding mill body 200 works to grind the grain in the grinding mill body 200 into powder. In the whole working process of the grinding mill body 200, dust is inevitably generated. The dust concentration is detected in real time by the dust detection sensor 301 arranged on the outside of the silo body 100. When the dust concentration reaches When the standard limit is reached, a feedback signal is sent to the control device 303, and the control device 303 sends a control signal to the motor 202 to control the motor 202 to stop working, and the grinding mill body 200 stops grinding, thereby solving the root cause of dust generation from the source. Due to the immediate shutdown of the grinding mill body 200, the dust concentration on site no longer increases, and the safety hazard of dust explosion is eliminated in time. At the same time, the control device 303 sends an alarm control signal to the alarm module 304, and the alarm module 304 sends an alarm sound to remind the operator to take measures, which not only ensures the safety of production, but also ensures the smooth progress of production.

[0045] For example, wheat crushing is an important process in koji production. Due to the sealing of the equipment during operation, a certain amount of grain dust will be generated around the mill 10 when wheat is crushed. When the dust accumulation reaches a certain concentration, dust explosion risk is prone to occur. In order to closely detect the dust concentration and prevent and control the risk of dust explosion, the embodiment of the present application installs a dust detection sensor 301 on the outside of the silo body 100, which can instantly sense the dust concentration on the mill 10 site. When the dust concentration around the mill 10 reaches the standard limit, the control device 303 controls the mill 10 to stop working, and the control alarm module 304 sends an alarm to remind the operator to take disposal measures to find and solve the cause of the excessively high dust concentration.

[0046] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0047] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A dust explosion-proof control device, characterized in that: include: A grinding mill, a dust detection sensor, a control device and an alarm module, wherein the grinding mill comprises a silo body, a grinding mill body and a motor arranged in the grinding mill body; the grinding mill body is connected to the silo body, the dust detection sensor is arranged outside the silo body, and the control device is connected to the dust detection sensor, the alarm module and the motor; The dust detection sensor is used to send a feedback signal to the control device when it detects that the dust concentration reaches the standard limit; the control device is used to send a control signal to control the motor to stop working after receiving the feedback signal, and send an alarm signal to control the alarm module to alarm.

2. The dust explosion-proof control device according to claim 1, characterized in that: The dust detection sensor is arranged at the lower end portion of the outer side of the silo body.

3. The dust explosion-proof control device according to claim 1, characterized in that: The grinding mill body is connected to the silo body through a feed pipe.

4. The dust explosion-proof control device according to claim 3, characterized in that: A grain observation window is provided on the feeding pipe.

5. The dust explosion-proof control device according to claim 1, characterized in that: The control device is connected to the dust detection sensor through a wire tube.

6. The dust explosion-proof control device according to claim 1, characterized in that: The control device is connected to the motor through a wire tube.

7. The dust explosion-proof control device according to claim 1, characterized in that: The control device is connected to the alarm module via a wire tube.

8. The dust explosion-proof control device according to claim 1, characterized in that: The silo body comprises a first cylindrical cavity, a first conical cavity which is larger at the top and smaller at the bottom, and a second cylindrical cavity which are arranged in sequence.

9. The dust explosion-proof control device according to claim 3, characterized in that: The feeding pipe comprises a third cylindrical cavity and a first cavity which is smaller at the top and larger at the bottom, and the third cylindrical cavity is connected to the first cavity.

10. The dust explosion-proof control device according to claim 1, characterized in that: The grinding machine body comprises a second cavity which is smaller at the top and larger at the bottom and a square cavity, wherein the second cavity is connected to the square cavity.

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