CN219037828U - Mud cake thickness real-time supervision device - Google Patents
Mud cake thickness real-time supervision device Download PDFInfo
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- CN219037828U CN219037828U CN202223106492.1U CN202223106492U CN219037828U CN 219037828 U CN219037828 U CN 219037828U CN 202223106492 U CN202223106492 U CN 202223106492U CN 219037828 U CN219037828 U CN 219037828U
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Abstract
The utility model relates to an operation state detection device used on a belt filter press, in particular to a mud cake thickness real-time monitoring device, which comprises a press roller, wherein an inner layer filter belt and an outer layer filter belt are arranged on the press roller, mud cakes exist between the inner layer filter belt and the outer layer filter belt, a swing arm is arranged above the outer layer filter belt, one end of the swing arm is rotationally fixed, the other end of the swing arm is provided with a roller, the roller is propped against the outer layer filter belt due to dead weight, an angle sensor is arranged on the swing arm so as to measure the angle change of the swing arm in real time, when the roller is propped against the outer layer filter belt, the angle alpha of the swing arm is obtained, and the angle alpha of the swing arm has the thickness b mm of the mud cake corresponding to the angle alpha of the mud cake. The running state of the belt filter press is monitored in real time through the device, so that manpower is liberated, the expenditure is saved, and the efficiency is improved.
Description
Technical Field
The utility model relates to an operation state detection device used on a belt filter press, in particular to a mud cake thickness real-time monitoring device.
Background
The belt filter press is one of the conventional devices in the field of sludge dewatering. When the belt filter press is used for dewatering, the sludge is firstly flocculated into larger particles, then the larger particles are uniformly arranged on the filter belts, after redundant water is filtered, the solid sludge is clamped between the two layers of filter belts to form mud cakes with a certain thickness, the filter belts are tensioned by the tensioning mechanism, the filter belts pass through the S-shaped arranged press rollers, and the water in the sludge is further removed through the tensioning force and the shearing force. In actual production, sludge cannot be trapped between two layers of filter belts for various reasons, namely, a mud cake with a certain thickness cannot be formed, so that the sludge dewatering process cannot be completed normally. Or the sludge output and the equipment operation parameters are not properly matched, so that the sludge cake in the equipment is too thick, and the equipment is stopped or damaged due to the tight driving of the equipment. At this time, the thickness of the mud cake in the dehydrator needs to be monitored in real time.
The patent ZL202220332389.X 'a mud cake thickness detection mechanism' disclosed at present, the mud cake thickness detection device described in this patent only gives an alarm when the mud cake is too thick, can not meet the requirement of monitoring the mud cake thickness in real time, in the production operation of the existing equipment, the observation and confirmation of the mud thickness work is completely carried out manually, personnel are required to patrol back and forth, and personnel on duty are required to be set up in a dehydration machine room.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the mud cake thickness real-time monitoring device, which can monitor the running state of the belt filter press in real time, liberate manpower, save expenditure and improve efficiency.
In order to solve the problems, the following technical scheme is adopted:
this mud cake thickness real-time supervision device, including the squeeze roll, be equipped with inlayer filter belt and outer filter belt on the squeeze roll, there is the mud cake between inlayer filter belt and the outer filter belt, outer filter belt top is equipped with the swing arm, and the one end of swing arm is the rotation form fixedly, and the other end is equipped with the gyro wheel, the gyro wheel offsets with outer filter belt owing to the dead weight, be equipped with angle sensor in the swing arm so that the angle variation of real-time measurement swing arm, obtain swing arm angle alpha when gyro wheel offsets with outer filter belt, swing arm angle alpha has the thickness b mm of a mud cake that corresponds with it.
The device further comprises an instrument, and the angle sensor transmits a thickness signal of the mud cake to the instrument according to the angle change of the swing arm.
The angle sensor and the instrument adopt 4-20mA signal transmission.
The instrument is provided with a display screen for displaying the real-time angle of the swing arm and/or the change angle of the swing arm and/or the real-time thickness of the mud cake and/or the change thickness of the mud cake.
The angle sensor is provided with an initial value alpha degree, the instrument is provided with a mud cake real-time thickness b mm corresponding to the initial value alpha degree, when the alpha degree is changed into the alpha 'degree, the instrument is provided with a mud cake thickness b' mm corresponding to the initial value alpha degree, the swing arm changes the angle to be the angle of |alpha-alpha '| degree, and the mud cake changes the thickness to be the angle of |b-b' | mm.
One end of the swing arm is fixed through a pin shaft.
The adoption of the scheme has the following advantages:
the device for monitoring the thickness of the mud cake in real time comprises a squeezing roller, wherein an outer layer filter belt is arranged on the squeezing roller, a swing arm is arranged above the filter belt, one end of the swing arm is movably fixed through a pin shaft, the other end of the swing arm is provided with a roller, the roller swings up and down along with the swing arm, the roller is propped against the outer layer filter belt due to dead weight, an angle sensor is arranged on the swing arm and is used for measuring the angle change of the swing arm in real time, and when the thickness of the mud cake changes, the angle of the swing arm also changes, so that when the roller is propped against the outer layer filter belt, the angle alpha of the swing arm is obtained, and when the roller naturally drops on the outer layer filter belt along with gravity, the angle alpha of the swing arm has and only one mud cake thickness b mm corresponding to the angle alpha of the swing arm, and at the moment, the mud cake thickness of the device can be monitored in real time through measuring the angle of the swing arm.
Drawings
Fig. 1 is a schematic structural diagram of a mud cake thickness real-time monitoring device of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
As shown in fig. 1, the real-time thickness monitoring device for mud cakes comprises a pressing roller 9, an outer layer filter belt 6 is arranged on the pressing roller 9, a swing arm 3 is arranged above the outer layer filter belt 6, one end of the swing arm 3 is fixed in a rotating mode through a pin shaft 4, a roller 1 is arranged at the other end of the swing arm, the roller 1 swings up and down along with the swing arm 3, the roller 1 is propped against the outer layer filter belt 6 due to dead weight, an angle sensor 2 is arranged on the swing arm 3 and is used for measuring the angle change of the swing arm 3 in real time, when the thickness of a mud cake 7 changes, the angle of the swing arm 3 also changes, therefore when the roller 1 is propped against the outer layer filter belt 6, the angle alpha of the swing arm 3 is obtained, and only one corresponding mud cake 7 has the thickness b mm along with the gravity, and at the moment, the thickness of the mud cake 7 of the device can be monitored in real time through measuring the angle of the swing arm 3.
The device also comprises a meter 8, wherein the angle sensor 2 transmits a thickness signal of the mud cake 7 to the meter 8 according to the angle change of the swing arm 3. The 4-20mA signal transmission between the angle sensor 2 and the instrument 8 is not easy to be interfered, and the stability of the signal transmission is improved. The instrument 8 is provided with a display screen for displaying the real-time angle of the swing arm 3 and/or the change angle of the swing arm 3 and/or the real-time thickness of the mud cake 7 and/or the change thickness of the mud cake 7. The meter 8 can remotely monitor the thickness of the mudcake 7 so as to meet the requirement of remote unattended operation.
Further, the angle sensor 2 sets an initial value α degree, at this time, the meter 8 has a real-time thickness b mm of the mud cake 7 corresponding thereto, when α degree is changed to α 'degree, the meter 8 has a thickness b' mm of the mud cake 7 corresponding thereto, the swing arm 3 changes the angle to be |α - α '| degree, and the mud cake 7 changes the thickness (i.e. the thickness difference of the mud cake 7 changes) to be |b-b' | mm.
Specifically, the installation position of the device is above a press roller 9 of a belt filter press, an angle sensor 2 is fixed on a swing arm 3, the swing arm 3 is fixed through a pin shaft 4, the pin shaft 4 is used as the rotation center of the swing arm 3, a roller 1 is fixed at the front end of the swing arm 3, and the roller 1 is attached to an outer layer filter belt 6 by utilizing dead weight.
When the thickness of the mud cake 7 between the inner side and the outer side of the two layers of filter belts on the squeezing roller 9 changes, the roller 1 moves along with the outer layer of filter belt 6, the swing arm 3 swings up and down, the angle sensor 2 outputs 4-20mA signals according to the rotation angle, the signals are converted by the instrument 8 connected with the angle sensor, the thickness of the current mud cake 7 can be displayed on the screen of the instrument 8 in real time, the instrument 8 can manually set parameters and alarm signals, for example, the angle alpha 'of the swing arm 3 corresponding to the limit thickness of the mud cake 7 is set, and when the angle of the swing arm 3 reaches alpha', the alarm is automatically given, and an on-duty person is timely reminded.
The principle of the utility model is that the roller 1 is attached to the outer layer filter belt 6 to move, the swing arm 3 and the angle sensor 2 are driven to rotate together, the angle sensor 2 outputs 4-20mA signals in real time, the signals are uploaded to the instrument 8, and the thickness of the real-time mud cake 7 is obtained and displayed on the instrument 8 through a fixed conversion formula set by a singlechip in the instrument 8, so that the real-time monitoring of the thickness of the mud cake 7 is realized.
The angle sensor 2 of this scheme is high in accuracy, but real-time transmission signal, monitoring devices simple structure, low cost, it is convenient to maintain, and applicable scene is many.
Claims (6)
1. The utility model provides a mud cake thickness real-time supervision device, includes squeeze roll (9), is equipped with inlayer filter belt (5) and outer filter belt (6) on squeeze roll (9), exists mud cake (7) between inlayer filter belt (5) and outer filter belt (6), a serial communication port, outer filter belt (6) top is equipped with swing arm (3), and the one end of swing arm (3) is rotatory form fixedly, and the other end is equipped with gyro wheel (1), gyro wheel (1) offsets with outer filter belt (6) owing to the dead weight, be equipped with angle sensor (2) on swing arm (3) so that the angle variation of real-time measurement swing arm (3), obtain swing arm (3) angle alpha when gyro wheel (1) offsets with outer filter belt (6), swing arm (3) angle alpha has thickness b mm of mud cake (7) that corresponds with it.
2. The mud cake thickness real-time monitoring device according to claim 1, further comprising an instrument (8), wherein the angle sensor (2) transmits a thickness signal of the mud cake (7) to the instrument (8) according to an angle change of the swing arm (3).
3. A mud cake thickness real-time monitoring device according to claim 1 or 2, characterized in that 4-20mA signal transmission is adopted between the angle sensor (2) and the instrument (8).
4. A mud cake thickness real-time monitoring device according to claim 2, characterized in that the instrument (8) is provided with a display screen for displaying the real-time angle of the swing arm (3) and/or the change angle of the swing arm (3) and/or the real-time thickness of the mud cake (7) and/or the change thickness of the mud cake (7).
5. A real-time mud cake thickness monitoring device according to claim 4, characterized in that the angle sensor (2) is provided with an initial value of α degrees, the instrument (8) is provided with a real-time mud cake (7) thickness b mm corresponding to the initial value, when α degrees are changed to α 'degrees, the instrument (8) is provided with a mud cake (7) thickness b' mm corresponding to the initial value, the swing arm (3) changes to an angle of |α - α '| degrees, and the mud cake (7) changes to a thickness of |b-b' | mm.
6. The mud cake thickness real-time monitoring device according to claim 1, wherein one end of the swing arm (3) is fixed through a pin shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223106492.1U CN219037828U (en) | 2022-11-23 | 2022-11-23 | Mud cake thickness real-time supervision device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223106492.1U CN219037828U (en) | 2022-11-23 | 2022-11-23 | Mud cake thickness real-time supervision device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219037828U true CN219037828U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223106492.1U Active CN219037828U (en) | 2022-11-23 | 2022-11-23 | Mud cake thickness real-time supervision device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219037828U (en) |
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2022
- 2022-11-23 CN CN202223106492.1U patent/CN219037828U/en active Active
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