CN212768256U - Putty early warning and scram device - Google Patents
Putty early warning and scram device Download PDFInfo
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- CN212768256U CN212768256U CN202021598032.3U CN202021598032U CN212768256U CN 212768256 U CN212768256 U CN 212768256U CN 202021598032 U CN202021598032 U CN 202021598032U CN 212768256 U CN212768256 U CN 212768256U
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Abstract
The utility model discloses a putty early warning and scram device for the putty early warning and the scram of belt chute, include: the device comprises a material detection sensing device, a signal isolation conversion device connected with the material detection sensing device, and an early warning and emergency stop device connected with the signal isolation conversion device. The signal isolation conversion device responds to a material detection sensing device for detecting the belt chute and controls the early warning and emergency stop device; when the material detection sensing device senses material blockage, a material blockage signal is transmitted to the signal isolation and conversion device, and the signal isolation and conversion device controls the early warning and emergency stop device to send out an early warning signal to remind a worker of finding the material blockage phenomenon in time; when the material detection and sensing device senses that the material blocking phenomenon is not processed in time and the materials are continuously increased, a stop signal is sent out, the signal isolation and conversion device controls the early warning and emergency stop device to enable the early warning and emergency stop device to forcibly stop the belt from running, the material accumulation range is further reduced, and the deterioration degree of the material blocking accident is reduced.
Description
Technical Field
The utility model relates to a transportation equipment emergency warning and shutdown control field, more specifically say, relate to a putty early warning and scram device.
Background
The material conveying equipment is widely applied to actual production and life, and is particularly suitable for material conveying equipment such as a multi-stage belt, a chain belt, a tugboat and the like.
At present, coke in an iron works is mainly transported by a belt transport system, and the belt transport system is provided with a chute for receiving and outputting materials. The traditional belt conveying system has a pull rope switch, heavy deviation, light deviation and the like, but does not have a device for online detection and control of belt chute blockage, and the belt chute blockage phenomenon often occurs in the production process.
When a chute in a belt conveying system is blocked, but workers cannot find the blockage in time, a large amount of materials overflow to press or bury the belt, so that the belt slips and even breaks; meanwhile, if the material blockage accident is discovered or not processed in time, the material blockage accident is further worsened, namely, a plurality of materials in the belt conveying system are accumulated, and the smooth production is influenced.
Therefore, how to design a belt chute blockage warning device capable of reminding workers of finding the belt chute blockage phenomenon in time and reducing the deterioration degree of the blockage accident becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that in time discover belt chute putty phenomenon and prevent the putty accident from expanding. Therefore, the utility model provides a belt putty early warning and scram device.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a putty early warning and scram device for the putty early warning and the scram of belt chute, include:
the material detection sensing device is used for detecting materials;
the signal isolation conversion device is connected with the material detection sensing device;
and the early warning and emergency stop device is connected with the signal isolation and conversion device and is used for early warning or forcibly stopping the belt running.
Preferably, the material detection sensing device comprises a first sensing layer, a second sensing layer and a third sensing layer which are arranged from inside to outside;
the first sensing layer is provided with a sensing line and a heavy hammer connected with the sensing line,
the second induction layer is provided with a steel pipe filled with insulating sealant, a grounding wire communicated with the periphery of the steel pipe, and a junction box fixed at one end of the steel pipe far away from the material, wherein the junction box is internally provided with an early warning signal terminal, a stop signal terminal and a public connection terminal,
the third induction layer comprises a material detection induction device rack arranged on the side wall of the belt chute.
Preferably, the sensing lines include a first sensing line and a second sensing line, and the weight includes a first weight and a second weight;
the one end that first response line is close to the material is connected with first weight, and the one end that the material was kept away from to first response line is connected with the early warning signal terminal, and the one end that the material was kept away from to the second response line is connected with the second weight, and the one end that the material was kept away from to the second response line is connected with stop signal terminal.
Preferably, the length of the first induction line is greater than that of the second induction line, and the lengths of the first induction line and the second induction line are both greater than that of the steel pipe.
Preferably, an insulating layer is arranged between the first induction line and the second induction line.
Preferably, the first sensing line and the second sensing line are both soft conductive lines.
Preferably, the soft conductive wire is a soft copper core wire combined with an elastic steel wire rope.
Preferably, the first weight and the second weight are both conductive weights.
Preferably, the first weight and the second weight are both iron weights.
Preferably, the signal isolation and conversion device comprises a first air switch in electric communication, a first circuit matched with the early warning signal terminal and a second circuit matched with the stop signal terminal;
the first circuit and the second circuit which are connected in parallel are connected with the first air switch in series;
the first circuit comprises an early warning relay and an early warning signal port matched with the early warning signal terminal, and the early warning relay is connected with the early warning signal port in series;
when the belt chute is blocked, the material detection sensing device conducts electricity, the early warning signal terminal is communicated with the early warning signal port, the early warning signal port is closed, the first circuit is closed, and the early warning relay is powered on;
the second circuit comprises a stop relay and a stop signal port matched with the stop signal terminal, and the stop signal port is connected with the stop relay in series;
when the belt chute is blocked and cannot be timely processed, the material detection sensing device conducts electricity along with the accumulation of materials, the stop signal terminal is conducted with the stop signal port, the stop signal port is closed, the second circuit is closed, and the stop relay is powered on.
Preferably, the signal isolation and conversion device further comprises a voltage-stabilized power supply device connected in series with the first air switch.
Preferably, the early warning and emergency stop device comprises a third circuit and a fourth circuit which are matched with the signal isolation and conversion device;
the third circuit comprises an early warning device and an early warning relay trigger matched with the signal isolation and conversion device;
when the material detection sensing device detects that the belt chute is blocked, the signal isolation conversion device matched with the material detection sensing device controls the closing of the trigger of the early warning relay, so that the third circuit is closed, and the early warning device sends out an early warning signal;
the fourth circuit comprises a belt coil and a stop relay trigger matched with the signal isolation and conversion device;
when the belt chute is blocked and cannot be timely processed, along with the accumulation of materials, the signal isolation and conversion device matched with the material detection and sensing device controls the stop of the relay trigger to be disconnected, so that the fourth circuit is disconnected, the belt coil is powered off, and the belt stops running.
According to the technical scheme, when the blocking early warning and emergency stop device provided by the utility model is used, the material detection sensing device is used for detecting whether blocking occurs in the belt chute, the signal isolation conversion device connected with the material detection sensing device responds to the material detection sensing device and controls the early warning and emergency stop device; when the material detection sensing device does not sense that the belt chute is blocked, the signal isolation conversion device connected with the material detection sensing device does not respond, and the early warning and emergency stop device does not work; when the material detection sensing device senses material blockage, a material blockage signal is transmitted to the signal isolation and conversion device, and then the signal isolation and conversion device controls the early warning and emergency stop device to enable the early warning and emergency stop device to send out an early warning signal to remind a worker to find and process the material blockage phenomenon in time; when the material detection and sensing device senses that the material blockage phenomenon in the belt chute is not processed in time and the materials are continuously increased, a stop signal is sent out and transmitted to the signal isolation and conversion device, the signal isolation and conversion device controls the early warning and emergency stop device to enable the early warning and emergency stop device to forcibly stop the belt from running, the material accumulation range in the belt transportation system is further reduced, and the deterioration degree of the material blockage accident is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a material detection sensing device of a belt chute early warning and emergency stop device provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a material detection sensing device of another belt chute early warning and emergency stop device provided in the embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure view of a material detection sensing device of a belt chute early warning and emergency stop device provided in an embodiment of the present invention;
fig. 4 is a schematic diagram of a signal isolation and conversion device of a belt chute early warning and emergency stop device provided in an embodiment of the present invention;
fig. 5 is a schematic diagram of a material blockage early warning principle of a belt chute early warning and emergency stop device provided by the embodiment of the utility model;
fig. 6 is the embodiment of the utility model provides a stifled material of belt chute early warning and scram device shuts down the principle sketch map.
Wherein: 100 is a material detection sensing device, 101 is a first sensing layer, 102 is a second sensing layer, 103 is a third sensing layer, 400 is a belt chute, 1011 is a first sensing line, 1012 is a first weight, 1013 is a second sensing line, 1014 is a second weight, 1021 is a steel pipe, 1022 is a junction box, 1022-a is an early warning signal terminal, 1022-b is a stop signal terminal, 1022-c is a common connection terminal, 1023 is a ground line, 1031 is a material detection sensing device rack, 201 is a first circuit, 2011 is an early warning relay, 2012 is an early warning signal port, 202 is a second circuit, 2021 is a stop relay, 2022 is a stop signal port, 203 is a voltage stabilizing power supply device, 2031 is a voltage reducer, 2032 is a first diode, 2033 is a second diode, 204 is a first air switch, 301 is a third circuit, 3011 is an early warning relay trigger, 3012 is a second air switch, 3013 is a reset switch, 3014, 3015, 302, a fourth circuit, 3021, a stop relay trigger, 3022, a third air switch, 3023, a stop switch, 3024, a start switch, 3025, a K-lock point, 3026, a self-lock switch, and 3027, a belt coil.
Detailed Description
The core of the utility model is to provide a putty early warning and scram device to in time discover the putty phenomenon of belt chute and prevent the putty accident from expanding.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 6, the embodiment of the utility model provides a putty early warning and scram device for the putty early warning and the scram of belt chute 400, include:
a material detection sensing device 100 for detecting a material;
a signal isolation and conversion device connected with the material detection and sensing device 100;
and the early warning and emergency stop device is connected with the signal isolation and conversion device and is used for early warning or forcibly stopping the belt running.
The material detection sensing device 100 is used for detecting whether material blockage occurs in the belt chute 400, and the signal isolation and conversion device connected with the material detection sensing device 100 responds to the material detection sensing device 100 and controls the early warning and emergency stop device to send out an early warning signal or stop the belt running;
specifically, when the material detection sensing device 100 does not sense that the belt chute 400 is blocked, the signal isolation and conversion device connected with the material detection sensing device 100 does not respond, and the early warning alarm and emergency stop device does not work; when the material detection and sensing device 100 senses that material blockage occurs in the belt chute 400, a material blockage signal is transmitted to the signal isolation and conversion device, and then the signal isolation and conversion device controls the early warning and emergency stop device according to the material blockage signal, so that the early warning and emergency stop device sends out an early warning signal to remind a worker to find and process the material blockage phenomenon in time; when the material detection and sensing device 100 senses that the material blockage phenomenon in the belt chute 400 is not processed in time and the materials are continuously increased, a stop signal is sent out and transmitted to the signal isolation and conversion device, the signal isolation and conversion device controls the early warning and emergency stop device to enable the early warning and emergency stop device to forcibly stop the belt from running, the material accumulation range in a belt transportation system is reduced, and the deterioration degree of the material blockage accident is reduced.
As shown in fig. 1, the material detection sensing device 100 includes a first sensing layer 101, a second sensing layer 102 and a third sensing layer 103 arranged from inside to outside;
the first sensing layer 101 has a sensing line and a weight connected to the sensing line for sensing whether a material jam occurs in the belt chute 400,
as shown in fig. 2, the second sensing layer 102 has a steel pipe 1021, and the steel pipe 1021 is filled with an insulating sealant so that the sensing lines can be fixed and insulated inside the steel pipe 1021; a grounding wire 1023 communicated with the periphery of the steel pipe 1021 to ensure the safety of the field working process; a terminal box 1022 fixed on one end of the steel pipe 1021 far away from the material, a warning signal terminal 1022-a and a stop signal terminal 1022-b for connecting with the signal isolation and conversion device, and a common terminal 1022-c for connecting with the belt chute 400 are arranged in the terminal box 1022.
It should be noted that there are various connection manners of the common connection terminal 1022-c and the belt chute 400, such as through a wire, a connector or a connection terminal, and the connection between the common connection terminal 1022-c and the belt chute 400 is within the protection scope of the present invention as long as it can be realized; preferably, the utility model discloses public binding post 1022-c that provides borrows the electric conductivity of steel pipe 1021, directly is connected with belt chute 400 through steel pipe 1021, has saved the material, has improved economic benefits.
In addition, the shape of the cross section of the steel pipe 1021 on the plane perpendicular to the axial direction of the steel pipe 1021 can be circular, square, rectangular, polygonal and the like, and the size of the cross section shape is not required, so long as the size of the cross section of the steel pipe 1021 is smaller than the size of the cross section of the belt chute 400, the steel pipe 1021 can extend into the inside of the belt chute 400, and the use strength of the material detection sensing device 100 can be satisfied, which belongs to the protection scope of the utility model; preferably, the cross-sectional shape of the steel tube 1021 in the axial plane is circular, and the cross-sectional dimension is phi 50 mm.
Further, the steel pipe 1021 can be a straight pipe, or can be a steel pipe 1021 which is bent to form a right angle, an obtuse angle or an acute angle, and the side length of the right angle, the obtuse angle or the acute angle is not limited, so long as the shape and the size which meet the strength requirement of the material detection sensing device 100 and are convenient to install all belong to the protection scope of the present invention; preferably, the steel pipe 1021 that the embodiment of the utility model provides is right angle steel pipe 1021 after buckling to two right-angle sides are 450 mm.
As shown in fig. 3, the third sensing layer 103 provided in the embodiment of the present invention includes a material detection sensing device rack 1031 for mounting the material detection sensing device 100 on the side wall of the belt chute 400;
specifically, the material detection sensing device rack 1031 is welded on the outer circumferential surface of the steel pipe 1021, and a mounting surface parallel to the side wall of the belt chute 400 is arranged along the outer circumference of the steel pipe 1021, so that during installation, the mounting surface of the material detection sensing device rack 1031 is connected with the side wall of the belt chute 400.
It should be noted that the mounting surface of the material detection sensing device rack 1031 may be a circular ring surface parallel to the side wall of the belt chute 400 and arranged along the periphery of the steel pipe 1021, or may be a plurality of square surfaces, circular surfaces, or special-shaped surfaces parallel to the side wall of the belt chute 400 and uniformly distributed along the periphery of the steel pipe 1021, and the material detection sensing device rack 1031 which satisfies the use strength of the material detection sensing device 100 belongs to the protection scope of the present invention; preferably, the installation face that the embodiment of the present invention adopted is 4 square faces parallel to the side wall of the belt chute 400 that are uniformly distributed along the periphery of the steel pipe 1021.
Furthermore, the connection mode between the mounting surface of the rack 1031 of the material detection sensing device and the side wall of the belt chute 400 is not limited, and may be welding, bolting, flange connection, etc., as long as the connection between the mounting surface of the rack 1031 of the material detection sensing device and the side wall of the belt chute 400 can be realized, which belongs to the protection scope of the present invention;
preferably, the mounting surface of the rack 1031 of the material detection sensing device provided by the embodiment of the present invention is connected to the side wall of the belt chute 400 by bolts; specifically, 4 square faces of the material detection sensing device rack 1031 are respectively provided with 1 threaded hole, during installation, connecting holes corresponding to the threaded holes in each square face of the material detection sensing device rack 1031 are processed on the side wall of the belt chute 400, and then the material detection sensing device rack 1031 is installed on the side wall of the belt chute 400 through bolt connection.
As shown in fig. 2, the sensing line provided by the embodiment of the present invention includes a first sensing line 1011 and a second sensing line 1013, the weight includes a first weight 1012 and a second weight 1014,
further, one end of the first sensing line 1011 close to the material is connected with a first weight 1012, the first sensing line 1011 and the first weight 1012 are used in a matching manner to detect whether the sensing belt chute 400 is blocked or not, and one end of the first sensing line 1011 far away from the material is connected with an early warning signal terminal 1022-a; one end of the second sensing wire 1013 close to the material is connected to the second counterweight 1014, the second sensing wire 1013 and the second counterweight 1014 are used in cooperation to detect whether the worker has processed the material jam in time when the sensing belt chute 400 is jammed, and one end of the second sensing wire 1013 far away from the material is connected to the stop signal terminal 1022-b.
When the early warning and emergency stop device provided by the embodiment of the utility model is used, the first induction line 1011 is drawn by the first weight 1012 to always go downwards for detecting whether the material blockage occurs in the induction belt chute 400; the second sensing line 1013 is always drawn downwards by the second counterweight 1014 to detect whether the blockage phenomenon of the belt chute 400 is timely handled.
Further, the length of the first sensing line 1011 is greater than that of the second sensing line 1013, so as to detect whether material blockage occurs at different height positions of the sensing belt chute 400, and prepare for making early warning and emergency stop actions later; the lengths of the first induction line 1011 and the second induction line 1013 are both greater than the length of the steel pipe 1021, so that the situation that the steel pipe 1021 is damaged after the first heavy hammer 1012 and the second heavy hammer 1014 cannot contact materials so as not to send out an early warning signal and a stop signal or the accumulated materials contact the steel pipe 1021 during material blockage is prevented; preferably, the embodiment of the present invention provides a first sensing line 1011 extends out 500mm of the port of the steel pipe 1021 near one end of the material, and a second sensing line 1013 extends out 200mm of the port of the steel pipe 1021 near one end of the material.
In addition, the first weight 1012 and the second weight 1014 have reasonable distances from the bottom of the belt chute 400, so that the purposes that the blockage early warning and emergency stop device wrongly warns due to too small distance or the blockage early warning and emergency stop device cannot be achieved due to too large distance are avoided; preferably, the first weight 1012 is kept at a distance of 600mm from the bottom of the belt chute 400, and the second weight 1014 is kept at a distance of 900mm from the bottom of the belt chute 400.
As shown in fig. 3, an insulating layer is disposed between the first sensing line 1011 and the second sensing line 1013 for isolating the first sensing line 1011 and the second sensing line 1013.
Further, the first sensing line 1011 and the second sensing line 1013 are both soft conductive lines, so that they can always go downward under the traction of the weight.
When it is required to be mentioned, the soft conductive wire can be a PVC soft wire, a rubber soft wire, etc., and the soft conductive wire is within the protection scope of the present invention; preferably, the embodiment of the present invention provides a soft conductive wire, which is a soft copper core wire combined with an elastic steel wire rope, so as to increase the mechanical strength and toughness of the first sensing wire 1011 and the second sensing wire 1013.
In addition, the specifications of the soft copper core wire and the elastic steel wire rope are not limited, and the elastic steel wire rope and the soft copper core wire which can meet the mechanical strength and toughness of the first induction wire 1011 and the second induction wire 1013 belong to the protection scope of the utility model; preferably, the soft copper core that the embodiment of the utility model provides is 10 square millimeters soft copper core, and elasticity wire rope is phi 8 elasticity wire rope.
Furthermore, the material in the belt chute 400 is a material with conductivity, the embodiment of the present invention takes coke as an example, and the first weight 1012 and the second weight 1014 are both weights with conductivity, so that when material blockage occurs, the conductivity of the weight and the coke in the belt chute 400 is utilized to energize the material detection sensing device 100, and prepare for subsequently sending an early warning signal or emergently stopping the belt operation;
specifically, when the coke in the belt chute 400 reaches a certain amount, the coke contacts the first weight 1012, and since the common connection terminal 1022-c is communicated with the belt chute 400, the early warning signal terminal 1022-a is powered on by the conductivity of the first weight 1012 and the coke, the early warning signal is switched on,
if the staff fails to timely handle the material blockage phenomenon, along with the continuous rising of the coke position in the belt chute 400, the coke in the belt chute 400 is contacted with the second heavy hammer 1014, and because the public connection terminal 1022-c is connected with the belt chute 400, the stop signal terminal 1022-b is electrified by utilizing the conductivity of the second heavy hammer 1014 and the coke, and the stop signal is switched on.
It should be noted that the first weight 1012 and the second weight 1014 may be iron weights, copper weights, aluminum weights, or the like, and any weight having conductivity is within the protection scope of the present invention; preferably, the first weight 1012 and the second weight 1014 provided by the embodiment of the present invention are both iron weights.
As shown in fig. 4, the signal isolation and conversion device provided by the embodiment of the present invention includes a first air switch 204 electrically connected to protect the signal isolation and conversion device; a first circuit 201 mated with the early warning signal terminal 1022-a and a second circuit 202 mated with the stop signal terminal 1022-b,
the first circuit 201 and the second circuit 202 connected in parallel are connected in series with a first air switch 204.
Specifically, first circuit 201 includes warning relay 2011 and warning signal port 2012 mated with warning signal terminal 1022-a, and warning relay 2011 is connected in series with warning signal port 2012,
when the belt chute 400 is blocked, the material detection sensing device 100 conducts electricity, the early warning signal terminal 1022-a is communicated with the early warning signal port 2012, the early warning signal port 2012 is closed, the first circuit 201 is closed, and the early warning relay 2011 is electrified;
the second circuit 202 includes a stop relay 2021 and a stop signal port 2022 mated with the stop signal terminals 1022-b, and the stop signal port 2022 is connected in series with the stop relay 2021;
when the belt chute 400 is blocked and cannot be processed timely, the material detection sensing device 100 conducts electricity along with the accumulation of coke, the stop signal terminal 1022-b is conducted with the stop signal port 2022, the stop signal port 2022 is closed, the second circuit 202 is closed, and the stop relay 2021 is powered on.
Further, as shown in fig. 4, the signal isolation and conversion device further includes a regulated power supply device 203 connected in series with the first air switch 204, where the regulated power supply device 203 includes a voltage reducer 2031, a first diode 2032 and a second diode 2033, and forms a bridge rectifier circuit with the warning relay 2011 and the stop relay 2021, so as to reduce the 220V ac voltage communicated by the signal isolation and conversion device to 24V ac voltage, and output the 24V ac voltage as double 24V dc voltage after bridge rectification for subsequent use; and the signal isolation conversion device can effectively isolate the 220V alternating voltage communicated by the signal isolation conversion device in the earlier stage from the subsequently used 24V direct current voltage, so that signal interference is prevented.
As shown in fig. 5 and fig. 6, the early warning and emergency stop device provided by the embodiment of the present invention includes a third circuit 301 and a fourth circuit 302 cooperating with the signal isolation and conversion device.
As shown in fig. 5, the third circuit 301 includes an early warning unit 3015 and an early warning relay trigger 3011 cooperating with the signal isolation switching device,
specifically, when the material detection sensing device 100 detects that the belt chute 400 is blocked, the signal isolation and conversion device matched with the material detection sensing device 100 controls the closing of the early warning relay trigger 3011, so that the third circuit 301 is closed, and the early warning device 3015 sends out an early warning signal.
In addition, the third circuit 301 further includes a second air switch 3012, a reset switch 3013, and a test switch 3014 connected in series with the early warning unit 3015, and the test switch 3014 is connected in parallel with the early warning relay trigger 3011.
Specifically, when the belt normally runs, the reset switch 3013 is closed, and the test switch 3014 and the early warning relay trigger 3011 are both opened; when coke in the belt chute 400 is blocked, the coke is in contact with the first heavy hammer 1012, because the common wiring terminal 1022-c is connected with the belt chute 400, and the first heavy hammer 1012 and the coke have electrical conductivity, the early warning signal terminal 1022-a is powered on, the early warning signal port 2012 connected with the early warning signal terminal 1022-a is powered on, the first circuit 201 is powered on, the early warning relay 2011 connected to the first circuit 201 is powered on, the early warning relay trigger 3011 matched with the early warning relay 2011 is closed, the third circuit 301 is switched on, and the early warning unit 3015 sends out an early warning signal, so that a worker can find and process the coke in time;
the test switch 3014 is used to test whether there is a circuit fault in the third circuit 301, during the test, the warning relay trigger 3011 is turned off, the reset switch 3013 and the test switch 3014 are turned on, if the warning signal is sent by the warning device 3015, there is no circuit fault in the third circuit 301; if the early warning device 3015 does not send out an early warning signal, the third circuit 301 has a circuit fault and needs to be repaired;
the opening of the reset switch 3013 can temporarily remove the warning signal from the early warning device 3015.
As shown in fig. 6, the fourth circuit 302 includes a belt coil 3027 and a stop relay trigger 3021 cooperating with the signal isolation switching device.
Specifically, when the belt chute 400 is blocked and cannot be timely disposed, along with accumulation of coke, the signal isolation and conversion device matched with the material detection sensing device 100 controls the stop relay trigger 3021 to be turned off, so that the fourth circuit 302 is turned off, the belt coil 3027 is turned off, and the belt stops running.
In addition, the fourth circuit 302 further includes a third air switch 3022, a stop switch 3023, a start switch 3024, a K interlock point 3025, and a self-lock switch 3026 in series with the belt coil 3027;
specifically, when the third air switch 3022, the stop switch 3023, the K interlock point 3025, and the stop relay trigger 3021 are closed, the start switch 3024 is closed, the fourth circuit 302 is closed, the belt coil 3027 is energized, and the belt runs; when the blockage occurs and cannot be timely treated, along with the accumulation of coke, the signal isolation and conversion device matched with the material detection sensing device 100 controls the stop relay trigger 3021 to be disconnected, so that the fourth circuit 302 is disconnected, the belt coil 3027 is powered off, the self-locking switch 3026 is disconnected, and the belt stops running.
It should be noted that the number of the K interlock points 3025 is, but not limited to, one, and is used for automatic protection of the fourth circuit 302; specifically, when the belt coil 3027 is overheated, coke is blocked, or the fourth circuit 302 is overcurrent, the K interlock point 3025 may be automatically turned off, so that the fourth circuit 302 is powered off, the belt stops running, and further expansion of an accident is avoided.
In addition, the third air switch 3022, the stop switch 3023, the K interlock point 3025, and the stop relay trigger 3021 are normally closed, the start switch 3024 is normally open, and when the start switch 3024 is pressed, the fourth circuit 302 is closed, so that the fourth circuit 302 is powered on, and the self-locking switch 3026 connected in parallel to the start switch 3024 is automatically closed, so that the fourth circuit 302 is still turned on after the start switch 3024 is released; when the fourth circuit 302 is subjected to power-off protection due to the situations of overheating of the belt coil 3027, coke blockage, circuit overcurrent and the like, the self-locking switch 3026 is automatically turned off correspondingly; therefore, the self-locking switch 3026 is used for automatically controlling the fourth circuit 302, and the fourth circuit 302 can be turned on without pressing the start switch 3024 all the time, so that labor waste is reduced, and enterprise benefits are improved.
Therefore, the early warning and emergency stop device provided by the embodiment of the utility model does not work when the belt normally runs and the belt chute 400 is not blocked; when material blockage occurs in the belt chute 400, the early warning signal terminal 1022-a is powered by utilizing the conductivity of the first heavy punch 1012 and coke, so that the early warning signal port 2012 of the signal isolation and conversion device is closed, namely the first circuit 201 is closed, the early warning relay 2011 is powered, then the early warning relay trigger 3011 matched with the early warning relay 2011 is closed, the third circuit 301 is closed, and the early warning device 3015 sends out an early warning signal; when the material blocking phenomenon in the belt chute 400 cannot be solved in time, along with the accumulation of coke, the second weight 1014 is in contact with the coke, so that the stop signal terminal 1022-b is powered on, further the stop signal port 2022 of the signal isolation and conversion device is closed, namely the second circuit 202 is closed, the stop relay 2021 is powered on, then the stop relay trigger 3021 matched with the stop relay 2021 is disconnected, namely the fourth circuit 302 is disconnected, the belt coil 3027 is powered off, meanwhile, the self-locking switch 3026 is disconnected, and the belt stops running.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. The utility model provides a putty early warning and scram device for the putty early warning and the scram of belt chute (400), its characterized in that includes:
the material detection sensing device (100) is used for detecting materials;
the signal isolation and conversion device is connected with the material detection sensing device (100);
and the early warning and emergency stop device is connected with the signal isolation and conversion device and is used for early warning or forcibly stopping the belt from running.
2. The blockage early warning and emergency stop device according to claim 1, wherein the material detection sensing device (100) comprises a first sensing layer (101), a second sensing layer (102) and a third sensing layer (103) which are arranged from inside to outside;
the first sensing layer (101) is provided with a sensing line and a heavy hammer connected with the sensing line,
the second induction layer (102) is provided with a steel pipe (1021) filled with an insulating sealant, a grounding wire (1023) communicated with the periphery of the steel pipe (1021), and a junction box (1022) fixed at one end of the steel pipe (1021) far away from materials, wherein an early warning signal terminal (1022-a), a stop signal terminal (1022-b) and a public connection terminal (1022-c) are arranged in the junction box (1022),
the third sensing layer (103) comprises a material detection sensing device housing (1031) mounted to a side wall of the belt chute (400).
3. The device for pre-warning and emergency stop of material blockage according to claim 2, wherein the sensing lines comprise a first sensing line (1011) and a second sensing line (1013), and the weight comprises a first weight (1012) and a second weight (1014);
one end of the first sensing line (1011) close to the material is connected with the first weight (1012), one end of the first sensing line (1011) far away from the material is connected with the early warning signal terminal (1022-a), one end of the second sensing line (1013) close to the material is connected with the second weight (1014), and one end of the second sensing line (1013) far away from the material is connected with the stop signal terminal (1022-b).
4. The blockage warning and emergency stop device according to claim 3, wherein the length of the first induction line (1011) is greater than the length of the second induction line (1013), and the lengths of the first induction line (1011) and the second induction line (1013) are both greater than the length of the steel pipe (1021).
5. The blockage warning and emergency stop device according to claim 4, wherein an insulating layer is arranged between the first sensing wire (1011) and the second sensing wire (1013).
6. The blockage warning and emergency stop device according to claim 5, wherein the first sensing line (1011) and the second sensing line (1013) are both soft conductive lines.
7. The blockage warning and emergency stop device according to claim 6, wherein the soft conductive wire is a soft copper core wire combined with an elastic steel wire rope.
8. The device for pre-warning and emergency stop of material blockage according to claim 3, wherein the first weight (1012) and the second weight (1014) are conductive weights.
9. The device for pre-warning and emergency stop of material blockage according to claim 8, wherein said first weight (1012) and said second weight (1014) are both iron weights.
10. The blockage warning and scram device according to claim 2, wherein the signal isolation switching means comprises a first air switch (204) in electrical communication, a first circuit (201) cooperating with the warning signal terminal (1022-a), and a second circuit (202) cooperating with the stop signal terminal (1022-b);
the first circuit (201) and the second circuit (202) which are connected in parallel are connected with the first air switch (204) in series;
the first circuit (201) comprises an early warning relay (2011) and an early warning signal port (2012) matched with the early warning signal terminal (1022-a), and the early warning relay (2011) is connected with the early warning signal port (2012) in series;
when the belt chute (400) is blocked, the material detection sensing device (100) conducts electricity, the early warning signal terminal (1022-a) is communicated with the early warning signal port (2012), the early warning signal port (2012) is closed, the first circuit (201) is closed, and the early warning relay (2011) is electrified;
the second circuit (202) comprises a stop relay (2021) and a stop signal port (2022) mated with the stop signal terminal (1022-b), and the stop signal port (2022) is connected in series with the stop relay (2021);
when the belt chute (400) is blocked and cannot be processed timely, the material detection sensing device (100) conducts electricity along with the accumulation of materials, the stop signal terminal (1022-b) is conducted with the stop signal port (2022), the stop signal port (2022) is closed, the second circuit (202) is closed, and the stop relay (2021) is electrified.
11. The blockage warning and emergency stop apparatus according to claim 10, wherein the signal isolation and conversion apparatus further comprises a regulated power supply apparatus (203) connected in series with the first air switch (204).
12. The blockage warning and emergency stop device according to claim 1, wherein the warning and emergency stop device comprises a third circuit (301) and a fourth circuit (302) cooperating with the signal isolation and conversion device;
the third circuit (301) comprises an early warning device (3015) and an early warning relay trigger (3011) matched with the signal isolation and conversion device;
when the material detection sensing device detects that the belt chute (400) is blocked, the signal isolation and conversion device matched with the material detection sensing device (100) controls the early warning relay trigger (3011) to be closed, so that the third circuit (301) is closed, and the early warning device (3015) sends out an early warning signal;
the fourth circuit (302) comprises a belt coil (3027) and a stop relay trigger (3021) cooperating with the signal isolation and conversion device;
when the belt chute (400) is blocked and cannot be timely processed, along with the accumulation of materials, the signal isolation and conversion device matched with the material detection sensing device (100) controls the stop relay trigger (3021) to be disconnected, so that the fourth circuit (302) is disconnected, the belt coil (3027) is powered off, and the belt stops running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598032.3U CN212768256U (en) | 2020-08-04 | 2020-08-04 | Putty early warning and scram device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021598032.3U CN212768256U (en) | 2020-08-04 | 2020-08-04 | Putty early warning and scram device |
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| CN212768256U true CN212768256U (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682280A (en) * | 2023-12-27 | 2024-03-12 | 湖北虹润高科新材料有限公司 | Early warning circuit, early warning device and control system of discharge valve |
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2020
- 2020-08-04 CN CN202021598032.3U patent/CN212768256U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682280A (en) * | 2023-12-27 | 2024-03-12 | 湖北虹润高科新材料有限公司 | Early warning circuit, early warning device and control system of discharge valve |
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