CN215749925U

CN215749925U - Ceramic slurry storage amount detection system and stirring pool

Info

Publication number: CN215749925U
Application number: CN202121811993.2U
Authority: CN
Inventors: 林耀桓; 邓翔; 陈亚辉; 刘传军; 何子权
Original assignee: Dongguan City Wonderful Ceramics Industrial Park Co Ltd
Current assignee: Dongguan City Wonderful Ceramics Industrial Park Co Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-02-08
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a ceramic slurry storage amount detection system and a stirring tank, comprising an ultrasonic liquid level meter, wherein a probe of the ultrasonic liquid level meter is arranged in the stirring tank of ceramic slurry and faces to the bottom surface in the stirring tank; the analog-to-digital converter is electrically connected with the ultrasonic liquid level meter and is used for converting an analog signal output by the ultrasonic liquid level meter into a digital signal; the communication module is electrically connected with the analog-to-digital converter; the PLC is electrically connected with the communication module and is used for converting the digital signal into pulp storage amount data; and the display equipment is electrically connected with the PLC and is used for displaying the slurry storage amount data. The problems that in the prior art, the time is long, the efficiency is low and safety accidents are easy to happen due to the fact that the stock of the pulp pond is manually detected are solved.

Description

Ceramic slurry storage amount detection system and stirring pool

Technical Field

The utility model relates to the technical field of ceramic production, in particular to a ceramic slurry storage amount detection system and a stirring tank.

Background

In the process of preparing the ceramic powder, a process of grinding and milling is needed. However, in the production process, a large amount of slurry is needed, and simultaneously, due to the peak-shifting power consumption requirement, multiple batches of concentrated slurry grinding are adopted, the slurry in the same batch is respectively conveyed to corresponding slurry pools through pipelines, a slurry discharging worker needs to be specially configured in the process, the slurry storage amount of the multiple slurry pools is checked at regular time, and the slurry waste caused by the full discharge of the slurry pools is prevented.

As the manual discharging operation has no specific numerical value for the stock storing amount on the spot. The stock solution amount of the stock solution pool needs to be checked once per shift, staff need to measure the stock solution surface height of the stock solution pool one by using a tape measure or a portable laser distance meter during checking, then the stock solution amount of each stock solution pool is calculated according to the area of the stock solution pool, and the work takes two to three hours. The stock process of the manual detection pulp pond is long in required time and low in efficiency, and safety accidents are easy to happen in the checking process.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a system for detecting the amount of stored slurry in ceramic slurry and a stirring tank, which solve the problems of long time, low efficiency and easy occurrence of safety accidents caused by manually detecting the amount of stored slurry in the slurry tank in the prior art.

The technical scheme of the utility model is as follows:

a ceramic slurry storage amount detection system comprises:

the ultrasonic liquid level meter is characterized in that a probe of the ultrasonic liquid level meter is arranged in a stirring pool of ceramic slurry and faces to the bottom surface in the stirring pool;

the analog-to-digital converter is electrically connected with the ultrasonic liquid level meter and is used for converting an analog signal output by the ultrasonic liquid level meter into a digital signal;

the communication module is electrically connected with the analog-to-digital converter;

the PLC is electrically connected with the communication module and is used for converting the digital signal into pulp storage amount data;

and the display equipment is electrically connected with the PLC and is used for displaying the slurry storage amount data.

Furthermore, the output end of the PLC is electrically connected with an audible and visual alarm.

Further, the output end of the PLC is electrically connected with an intermediate relay, and the intermediate relay is connected with an electromagnetic valve;

the electromagnetic valve is used for being arranged at a feeding hole of the stirring tank.

Furthermore, a plurality of analog-to-digital converters are arranged, and each analog-to-digital converter is connected with a plurality of ultrasonic liquid level meters;

the plurality of moduli are respectively connected to the communication module.

Further, the communication module comprises a communication bus, and the communication bus is a Modbus RTU RS485 serial port communication bus.

Further, the communication module further comprises a signal amplifier, and the signal amplifier is arranged between the analog-to-digital converter and the PLC.

Based on the same conception, the utility model also discloses a stirring tank, which comprises a tank body, a stirrer arranged in the tank body, a feed inlet and a material pumping port communicated with the tank body, and the ceramic slurry storage amount detection system.

Further, a frame body is arranged on the tank body, a through hole is formed in the frame body, and the ultrasonic liquid level meter is inserted into the through hole;

be provided with on the support body inner wall and keep off the cover, keep off the cover and be the opening towards one side of stirring pond bottom surface, it encircles to keep off the cover through-hole a week sets up, ultrasonic wave level gauge's probe is located keep off in the cover.

Further, the diameter of one side of the opening of the blocking cover is larger than that of one side of the blocking cover facing the through hole.

Further, the upper surface of support body is provided with fixed subassembly, fixed subassembly includes first elasticity pressing blade and second elasticity pressing blade, first elasticity pressing blade and second elasticity pressing blade mirror symmetry set up the both sides of ultrasonic wave level gauge to support and lean on the upper surface of ultrasonic wave level gauge.

Has the advantages that: compared with the prior art, the ceramic slurry storage amount detection system and the stirring tank provided by the utility model have the advantages that the liquid level in the slurry tank is detected through the ultrasonic liquid level meter, the corresponding analog signal is sent out according to the height of the liquid level, the analog signal is transmitted to the analog-to-digital converter, the analog signal output by the ultrasonic liquid level meter is converted into the digital signal through the analog-to-digital converter, the digital signal is transmitted to the PLC through the communication module, the digital signal is converted into the slurry amount data containing the actual slurry height in the slurry tank through the PLC, the residual slurry weight can be calculated according to the bottom area, the slurry height and the slurry proportion of the slurry tank, and the data is transmitted to the display device to simulate the slurry height and the actual slurry weight in the tank (in the tank). The automatic detection of the liquid level in the slurry tank is realized, the detection efficiency is high, the time spent is short, and a worker does not need to detect on the slurry tank, so that the safety accident is avoided.

Drawings

FIG. 1 is a schematic block circuit diagram of an embodiment of a ceramic slurry deposit detection system according to the present invention;

FIG. 2 is a schematic structural view of an embodiment of a stirring tank of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of a stirring tank of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3.

The reference numbers in the figures: 100. an ultrasonic liquid level meter; 200. an analog-to-digital converter; 300. a communication module; 310. a signal amplifier; 400. a PLC; 500. a display device; 510. an audible and visual alarm; 520. an intermediate relay; 530. an electromagnetic valve; 600. a tank body; 610. a stirrer; 620. a feed inlet; 630. a material pumping port; 640. a frame body; 641. a through hole; 700. a shield; 800. a fixing assembly; 810. a first elastic pressing piece; 811. a fixed part; 812. a side surface portion; 813. a pressing part; 814. an arc end; 820. and the second elastic pressing piece.

Detailed Description

The utility model provides a ceramic slurry storage amount detection system and a stirring tank, and in order to make the purposes, technical schemes and effects of the utility model clearer and clearer, the utility model is further described in detail by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the prior art, the amount of slurry in a slurry pool for storing ceramic slurry generally needs manual measurement, staff measure the slurry surface height of the slurry pool one by using a tape measure or a portable laser range finder, then calculate the slurry storage amount of each slurry pool according to the area of the slurry pool, and take two to three hours to complete the work. In the whole pulp storage process, the following problems are easy to occur: the amount of the slurry stored in the slurry tank cannot be intuitively known. The grout discharging worker needs to check the grout amount in the grout pool once every shift, and manual operation has errors, so that the required time is long, the efficiency is low, and safety accidents are easy to happen in the checking process. The multiple pulp pools discharge pulp at the same time, the distance is long, and the pulp needs to go back and forth for multiple times. After the slurry tank is filled up quickly, a slurry discharging worker needs to close the butterfly valve to the ball-milling slurry discharging pipe quickly, slurry overflow is avoided, slurry waste is caused, and operation needs to be carried out by multiple workers. The special product of small batch volume needs to be put thick liquid according to the volume, and staff's thick liquid is put while measuring the thick liquid face height when putting thick liquid, and the operation is inconvenient, measures inaccurately, can put more inadequately for the prevention thick liquid, causes the thick liquids extravagant. The slurry is prepared in advance, the slurry amount is abnormal, and the occurrence reason and the time cannot be searched. In view of the problems which are easy to occur in the production process, the ceramic slurry storage amount detection system disclosed by the scheme can automatically detect and count the slurry storage amount in real time, and can effectively solve the problems in the production. The method specifically comprises the following embodiments:

example one

As shown in fig. 1, the present embodiment provides a system for detecting the slurry storage amount of ceramic slurry, which is used for monitoring the slurry storage height and the slurry storage amount in a slurry tank (stirring tank). The ceramic slurry storage amount detection system comprises: an ultrasonic level meter 100, an analog-to-digital converter 200, a communication module 300, a PLC400, and a display device 500. The slurry tank is taken as an example for explanation. The ultrasonic level meter 100 is a digital level meter controlled by a microprocessor, ultrasonic pulses are emitted by a sensor (transducer) during measurement, sound waves are received by the same sensor after being reflected by the surface of a liquid or an ultrasonic receiver, the sound waves are converted into electric signals through a piezoelectric crystal or a magnetostrictive device, and the distance from the sensor to the surface of the measured liquid is calculated according to the time between the emission and the reception of the sound waves. Because of adopting non-contact measurement, the measured medium is almost unlimited, and can be widely used for measuring the height of various liquid and solid materials. The probe of the ultrasonic level meter 100 in this embodiment is configured to be disposed in a stirring tank (barrel) of ceramic slurry and face a bottom surface of the stirring tank (barrel).

The analog-to-digital converter 200 is electrically connected to the ultrasonic level meter 100 and is configured to convert an analog signal output by the ultrasonic level meter 100 into a digital signal. Specifically, the ultrasonic level gauge 100 outputs an analog signal of 4-20 mA according to the height range of the slurry, and the analog-to-digital converter 200 converts the output analog signal of 4-20 mA into a digital signal. The communication module 300 is electrically connected with the analog-to-digital converter 200, the PLC400 is electrically connected with the communication module 300, and the PLC400 is used for converting digital signals into pulp storage amount data.

The PLC400 is a core control element of the system, reads digital signals through communication, processes the read data by the PLC400, calculates data such as slurry stock and full alarm, and respectively displays the data or controls peripheral equipment according to preset conditions. The display device 500 is electrically connected with the PLC400, and the display device 500 is used for displaying the slurry storage amount data. The display device 500 is a human-machine interface operation control screen that functions to dynamically display pulp height, tonnage of existing pulp, operation and data processing, and historical data queries.

In the above embodiment, the liquid level in the slurry tank is detected by the ultrasonic level meter 100, and a corresponding analog signal is sent according to the height of the liquid level, the analog signal is transmitted to the analog-to-digital converter 200, the analog-to-digital converter 200 converts the analog signal output by the ultrasonic level meter 100 into a digital signal, the digital signal is transmitted to the PLC400 through the communication module 300, the digital signal is converted into slurry amount data including the actual slurry height in the slurry tank by the PLC400, the remaining slurry weight can be calculated according to the bottom area of the slurry tank, the slurry height and the slurry specific gravity, and the data is transmitted to the display device 500 to simulate the slurry height and the actual slurry weight in the tank (in the tank). The automatic detection of the liquid level in the slurry tank is realized, the detection efficiency is high, the time spent is short, and a worker does not need to detect on the slurry tank, so that the safety accident is avoided.

Example two

As shown in fig. 1, the present embodiment performs more optimized setting based on the first embodiment. The method specifically comprises the following steps: the output end of the PLC400 is electrically connected with an audible and visual alarm 510. Audible and visual alarm 510 includes stereo set and warning light, and audible and visual alarm 510 is used for the full thick liquid of suggestion and reports to the police, prevents that the thick liquids from overflowing. When the detected liquid level height value input by the PLC400 exceeds the maximum height value preset in the PLC400, the PLC400 transmits a command to the audible and visual alarm 510, and the audible and visual alarm 510 outputs an alarm. Thereby alerting the operator to perform the valve operation for closing the feed port 620 in time.

As shown in fig. 1 and fig. 2, in this embodiment, the automatic closing of the valve can also be realized, specifically, the output end of the PLC400 is electrically connected to an intermediate relay 520, the intermediate relay 520 is connected to an electromagnetic valve 530, and the electromagnetic valve 530 is configured to be disposed at the feeding port 620 of the stirring tank. The intermediate relay 520 is used for executing the PLC400 output instruction to perform signal transfer, and preventing the PLC400 from burning points. When the detected liquid level height value input by the PLC400 exceeds the maximum height value preset in the PLC400, the PLC400 transmits an instruction to the audible and visual alarm 510, and simultaneously, the PLC400 transmits an instruction to the electromagnetic valve 530, so that the electromagnetic valve 530 of the feeding hole 620 of the stirring tank is started, and the feeding hole 620 of the stirring tank is closed. So that the pulp tank stops feeding pulp.

In the actual slurry storage process, a plurality of slurry pools (stirring pools) are usually provided, so that a plurality of ultrasonic level meters 100 are correspondingly provided. Therefore, a plurality of analog-to-digital converters 200 are provided, and a plurality of ultrasonic liquid level meters 100 are connected to each analog-to-digital converter 200. A plurality of the ultrasonic level meters 100 are located in different agitation tanks. The plurality of modules are respectively connected to the communication module 300. Thus, multiple tanks can be monitored by one PLC 400. The utilization rate of the equipment is improved.

In the present embodiment, 5 analog-to-digital converters 200 are provided, each analog-to-digital converter 200 serves as a slave, and the PLC400 and the display device 500 serve as a master. The communication module 300 comprises a communication bus, and the communication bus is a Modbus RTU RS485 serial port communication bus. The communication between the host and the slave is realized through the communication bus. The ring-shaped architecture communication of master-slave communication is adopted, the transmission impedance is easy to match, the problems of overvoltage, overcurrent and serious influence of electromagnetic wave reflection do not exist, and the system has strong anti-electromagnetic interference capability.

Since the 5 a/d converters 200 are distributed at a relatively long distance, the communication module 300 further includes a signal amplifier 310, and the signal amplifier 310 is disposed on the communication bus such that the signal amplifier 310 is connected between the a/d converter and the PLC 400. In the long-distance transmission process, the signal amplifier 310 realizes the amplification, isolation and anti-interference of communication transmission signals, and the problem of data packet loss is avoided. The PLC400 host and 5 slave machines are networked through a Modbus RS485 communication mode to realize data exchange between the master machine and the slave machines, and the display equipment 500 on the host can display the stock states of all the pulp pools. In addition, a communication terminal resistor is added in the annular structure, so that signal reflection is eliminated, and the whole network data confusion is caused.

In a display interface of the display device, various signal data are displayed through picture and animation simulation, the height and weight of the slurry in the slurry pool can be directly seen on the display device, historical data are made according to the three-shift time, the three-shift stored slurry amount in the day can be directly and intuitively seen in a table form, and the data within 30 days can be inquired at most.

EXAMPLE III

As shown in fig. 2 and fig. 3, based on the same concept, the utility model further discloses a stirring tank, which includes a tank body 600 (tank body), a stirrer 610 disposed in the tank body 600, a feed inlet 620 and a discharge outlet 630 communicating with the tank body 600, and the above-mentioned ceramic slurry storage amount detection system. The feed inlet 620 of the tank body 600 is used for feeding slurry into the tank body 600, and the pumping outlet 630 is used for pumping out the slurry in the tank body 600. And the slurry level of the slurry in the tank is automatically monitored in real time through a ceramic slurry storage amount detection system.

In the concrete structure of the stirring tank, a frame body 640 (or a cover body) is arranged on the tank body 600, a through hole 641 is formed in the frame body 640, and the ultrasonic liquid level meter 100 is inserted into the through hole 641. Be provided with on the support body 640 inner wall and keep off cover 700, keep off cover 700 and be the opening towards one side of stirring pond inner bottom surface, keep off cover 700 and encircle through-hole a week sets up, ultrasonic wave level gauge 100's probe is located keep off in the cover 700. The shield 700 protects the side surface of the probe of the ultrasonic level gauge 100 and prevents the stirred slurry from being splashed onto the probe. The diameter of the opening side of the shield 700 is larger than the diameter of the through hole side of the shield 700. This allows the shield 700 to be formed in the form of a horn that does not block the transmission and reception of sound waves by the ultrasonic level gauge 100. Moreover, the baffle cover 700 in this embodiment is made of stainless steel or PVC, so as to ensure that the inner wall surface of the baffle cover 700 is smooth.

As shown in fig. 2 and 4, a fixing assembly 800 is disposed on the upper surface of the frame 640, the fixing assembly 800 includes a first elastic pressing piece 810 and a second elastic pressing piece 820, and the first elastic pressing piece 810 and the second elastic pressing piece 820 are arranged on two sides of the ultrasonic liquid level meter 100 in a mirror symmetry manner and abut against the upper surface of the ultrasonic liquid level meter 100. The first elastic pressing piece 810 and the second elastic pressing piece 820 both have elasticity, the first elastic pressing piece 810 and the second elastic pressing piece 820 are swung open from two sides, and due to the elasticity of the first elastic pressing piece 810 and the second elastic pressing piece 820, the upper ends of the first elastic pressing piece 810 and the second elastic pressing piece 820 are separated from the ultrasonic liquid level meter 100, the ultrasonic liquid level meter 100 can be moved out of a through hole, and the disassembly is convenient. After the ultrasonic liquid level meter 100 is clamped between the first elastic pressing piece 810 and the second elastic pressing piece 820, the ultrasonic liquid level meter 100 can be pressed on the frame body 640 due to the elasticity of the first elastic pressing piece 810 and the second elastic pressing piece 820.

As shown in fig. 4, the first elastic pressing piece 810 and the second elastic pressing piece 820 have the same structure, wherein, taking the first elastic pressing piece 810 as an example, the first elastic pressing piece 810 comprises a fixing part 811 fixed on the surface of the frame 640 by a screw, a side part 812 arranged perpendicular to the fixing part 811, and a pressing part 813 connected to the top end of the side part 812 and arranged toward the through hole, one end of the pressing part 813 is integrally formed with the side part 812, the other end is bent downward to form an arc end 814, the pressing part 813 has an elastic force tending to move toward the side part 812 by the bottom surface of the arc end 814 abutting against the upper surface of the ultrasonic liquid level meter 100, and the closer the pressing part 813 is to the side part 812, the closer the bottom surface of the pressing part 813 is to the surface of the frame 640.

In summary, according to the ceramic slurry storage amount detection system and the stirring tank provided by the present invention, the ultrasonic level meter 100 detects the liquid level in the slurry tank, and sends out a corresponding analog signal according to the height of the liquid level, the analog signal is transmitted to the analog-to-digital converter 200, the analog-to-digital converter 200 converts the analog signal output by the ultrasonic level meter 100 into a digital signal, the digital signal is transmitted to the PLC400 through the communication module 300, the digital signal is converted into slurry amount data including the actual slurry height in the slurry tank through the PLC400, the remaining slurry weight can be calculated according to the bottom area of the slurry tank, the slurry height and the slurry specific gravity, and the data is transmitted to the display device 500 to simulate the slurry height and the actual slurry weight in the tank (tank). The automatic detection of the liquid level in the slurry tank is realized, the detection efficiency is high, the time spent is short, and a worker does not need to detect on the slurry tank, so that the safety accident is avoided. Through this system, reduce and be equipped with the grout discharging worker three specially. (reduce labor cost). The labor capacity of the staff is reduced, the personal safety of the staff at the post is ensured, and the production continuity is ensured. Quantitative discharging is performed, the alarm is given when the required pulp amount is reached, the operation is convenient, and the waste is reduced. And (4) acquiring the pulp amount data in the pulp pool, and updating the existing pulp amount in real time through calculation. Historical data is made for inquiry, and historical data comparison can be carried out to quickly find out problem points when the pulp amount is abnormal. And a more comprehensive automatic monitoring process is realized.

It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.

Claims

1. A ceramic slurry storage amount detection system is characterized by comprising:

2. The system for detecting the amount of stored ceramic slurry according to claim 1, wherein an audible and visual alarm is electrically connected to the output end of the PLC.

3. The system for detecting the slurry storage amount of the ceramic slurry according to claim 1, wherein an output end of the PLC is electrically connected with an intermediate relay, and the intermediate relay is connected with an electromagnetic valve;

4. The system for detecting the slurry storage amount of the ceramic slurry according to claim 1, wherein a plurality of analog-to-digital converters are arranged, and a plurality of ultrasonic liquid level meters are connected to each analog-to-digital converter;

the plurality of moduli are respectively connected to the communication module.

5. The ceramic slurry storage amount detection system according to claim 4, wherein the communication module comprises a communication bus, and the communication bus is a Modbus RTU RS485 serial port communication bus.

6. The ceramic slurry inventory detection system of claim 5, wherein the communication module further includes a signal amplifier disposed between the analog-to-digital converter and the PLC.

7. A stirring pool, which is characterized by comprising a pool body, a stirrer arranged in the pool body, a feed inlet and a material pumping port communicated with the pool body, and a ceramic slurry storage amount detection system as claimed in any one of claims 1 to 6.

8. The stirring pool according to claim 7, wherein a frame body is arranged on the pool body, a through hole is formed in the frame body, and the ultrasonic liquid level meter is inserted into the through hole;

9. The mixing tank of claim 8, wherein the diameter of the opening side of the baffle is larger than the diameter of the through hole side of the baffle.

10. The stirring tank of claim 8, wherein a fixing assembly is arranged on the upper surface of the frame body, the fixing assembly comprises a first elastic pressing piece and a second elastic pressing piece, and the first elastic pressing piece and the second elastic pressing piece are arranged on two sides of the ultrasonic liquid level meter in a mirror symmetry manner and abut against the upper surface of the ultrasonic liquid level meter.