CN216367589U - Concrete mixing plant slurry water compounding system - Google Patents
Concrete mixing plant slurry water compounding system Download PDFInfo
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- CN216367589U CN216367589U CN202122987358.6U CN202122987358U CN216367589U CN 216367589 U CN216367589 U CN 216367589U CN 202122987358 U CN202122987358 U CN 202122987358U CN 216367589 U CN216367589 U CN 216367589U
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Abstract
The utility model relates to the technical field of slurry compounding of a concrete mixing plant, in particular to a slurry compounding system of a concrete mixing plant, which comprises a slurry weighing tank with fixed capacity, a clear water proportioning tank and a sewage mixing tank, wherein the slurry weighing tank is communicated with the clear water proportioning tank through an overflow pipe, and outlets of the slurry weighing tank and the clear water proportioning tank are respectively provided with a slurry valve and a clear water valve; a slurry weighing device and a clear water weighing device are respectively arranged on the slurry weighing tank and the clear water proportioning tank; a raw slurry tank is arranged on one side of the sewage stirring tank, a slurry pump is arranged in the raw slurry tank, a slurry conveying pipeline is communicated between the raw slurry tank and the slurry weighing tank, and an inlet of the slurry conveying pipeline is connected with the slurry pump; a clear water pipeline is arranged above the slurry weighing tank, the other end of the clear water pipeline is communicated with a high-pressure water source, and a high-pressure water valve is arranged on the clear water pipeline. The utility model has the advantages of high proportioning accuracy, high concrete construction quality and concrete sewage recycling.
Description
Technical Field
The utility model relates to the technical field of slurry water compounding of a concrete mixing plant, in particular to a slurry water compounding system of a concrete mixing plant.
Background
In concrete production, the treatment of concrete sewage and sludge is always a difficult problem which puzzles the concrete industry, the traditional treatment mode is to adopt a sand-stone separator and a filter press to separate sewage and silt in the sewage and sludge to generate sewage and aggregate with lower concentration, wherein only part of the aggregate can be recycled, a large amount of waste residues and sewage are still discharged, the environment is polluted, and more natural resources are wasted. In fact, the concrete sewage can still be used for mixing and stirring concrete in the mixing plant after being properly proportioned, and further the recycling is realized.
However, in the prior art, when concrete sewage is re-proportioned, a differential pressure densimeter is often used for detecting the solid content in sewage slurry, the densimeter normally measures the density of a static solution, but the main components of the sewage in a mixing plant are insoluble solids (cement powder, mineral powder, fly ash, sand and the like) and a mixing system is arranged, liquid is in a moving state when the mixing system operates, and the sewage can be rapidly precipitated when the mixing system stops. The density meter cannot meet the measuring working condition, so that the data is inaccurate, the error is large, the proportion of sewage in concrete is not accurate enough, and the construction quality of concrete engineering is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that a concrete mixing plant slurry-water compounding system in the prior art is large in measurement error, inaccurate in proportioning and influences the construction quality of concrete.
The specific scheme of the utility model is as follows:
designing a slurry compounding system of a concrete mixing plant, which comprises a slurry weighing tank, a clear water proportioning tank and a sewage mixing tank which are sequentially communicated from top to bottom and have fixed capacities, wherein the upper end of the side wall of the slurry weighing tank is provided with an overflow hole, an overflow pipe is arranged at the overflow hole, the outlet of the overflow pipe is communicated with the clear water proportioning tank, and the outlets of the slurry weighing tank and the clear water proportioning tank are respectively provided with a slurry valve and a clear water valve;
a slurry weighing device and a clear water weighing device are respectively arranged on the slurry weighing tank and the clear water proportioning tank;
a raw slurry tank is arranged on one side of the sewage stirring tank, a slurry pump is arranged in the raw slurry tank, a slurry conveying pipeline is communicated between the raw slurry tank and the slurry weighing tank, and an inlet of the slurry conveying pipeline is connected with the slurry pump;
the middle position above the slurry weighing tank is communicated with a clear water pipeline, the other end of the clear water pipeline is communicated with a high-pressure water source, and a high-pressure water valve is arranged on the clear water pipeline.
Preferably, the slurry weighing device and the clear water weighing device both comprise a weighing frame and a weighing sensor, one end of the weighing sensor on the slurry weighing tank is connected with the weighing frame, and the other end of the weighing sensor on the slurry weighing tank is connected with the slurry weighing tank; and one end of a weighing sensor on the clear water weighing device is connected with the weighing frame, and the other end of the weighing sensor is connected with the clear water proportioning tank.
Preferably, the weighing sensor is a pull-type sensor, the upper end of the pull-type sensor on the slurry weighing tank is connected with the weighing frame in a hanging manner, and the lower end of the pull-type sensor on the slurry weighing tank is connected with the slurry weighing tank in a hanging manner; one end of a pull-type weighing sensor on the clear water weighing device is connected with the weighing frame, and the other end of the pull-type weighing sensor is connected with the clear water proportioning tank in a hanging mode.
Preferably, a sewage conveying pipeline is communicated between the sewage stirring tank and the slurry weighing tank, and an inlet of the sewage conveying pipeline is connected with a sewage pump which is positioned in the sewage stirring tank.
Preferably, still include the PLC controller, thick liquid outlet valve and clear water valve are pneumatic butterfly valve, the output of PLC controller is connected with thick liquid valve, clear water valve, thick liquid pump, sewage pump, clear water valve electricity respectively, and the input of PLC controller links to each other with weighing sensor's output.
Preferably, the inside of sewage agitator tank is equipped with the (mixing) shaft and is located the epaxial puddler of stirring, and the top is equipped with agitator motor, agitator motor's output shaft and the coaxial setting of (mixing) shaft.
Preferably, a rotary spray nozzle is arranged at the outlet of the clean water pipeline.
The utility model has the beneficial effects that:
1. the utility model is characterized in that a slurry weighing tank with fixed capacity is arranged, an overflow port is arranged above the side wall of the slurry weighing tank, overflowed slurry flows into a clean water proportioning tank below through an overflow pipe, weighing sensors are arranged on the slurry weighing tank and the clean water weighing tank, the slurry is filled in the slurry weighing tank in an overflow mode, redundant slurry overflows, the weight of the slurry in the slurry weighing tank and the weight of the slurry overflowing from the clean water proportioning tank are respectively weighed through the weighing sensors, then the solid content of the slurry in the slurry weighing tank is calculated according to the volume of the slurry weighing tank, the solid content of the slurry overflowing from the clean water proportioning tank is calculated, the solid content of the slurry and the solid content of the slurry are added to form total solid content, then clean water is proportioned according to the requirement of the concentration of concrete sewage, compared with the traditional solid content detection mode, the mode is simpler, more convenient and more accurate, and has no requirement on the state of the sewage, thereby improving the construction quality of the concrete and realizing the recycling of the concrete sewage slurry of the mixing plant.
2. When the clear water is proportioned, the clear water pipeline is arranged above the slurry weighing tank, and the rotary spray head is arranged at the outlet of the clear water pipeline, so that the inner wall of the slurry weighing tank can be subjected to dead-angle-free spray washing, slurry adhered to the inner wall of the slurry weighing tank is washed away, the precision of next weighing is not influenced, and the proportioning precision is further improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation structure of the slurry water weighing tank and the clear water weighing tank;
the reference numbers in the figures are: 1 raw milk tank, 2 slurry pumps, 3 slurry conveying pipelines, 4 clear water pipelines, 5 slurry weighing tanks, 6 overflow pipes, 7 clear water proportioning tanks, 8 sewage stirring tanks, 9 stirring rods, 10 stirring shafts, 11 sewage pumps, 12 stirring motors, 13 sewage conveying pipelines, 14 overflow holes, 15 weighing sensors, 16 slurry valves, 17 clear water valves, 18 weighing frames and 19 high-pressure water valves.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
A concrete mixing plant slurry water re-formulation system, as shown in fig. 1 to fig. 2, comprises a slurry water weighing tank 5, a clear water proportioning tank 7 and a sewage mixing tank 8 which are sequentially communicated from top to bottom and have fixed capacity, wherein the upper end of the side wall of the slurry water weighing tank 5 is provided with an overflow hole 14, an overflow pipe 6 is arranged at the overflow hole 14, the outlet of the overflow pipe 6 is communicated with the clear water proportioning tank 7, and the outlets of the slurry water weighing tank 5 and the clear water proportioning tank 7 are respectively provided with a slurry water valve 16 and a clear water valve 17; a raw slurry tank 1 is arranged on one side of the sewage stirring tank 8, a slurry pump 2 is arranged in the raw slurry tank 1, a slurry conveying pipeline 3 is communicated between the raw slurry tank 1 and the slurry weighing tank 5, and the inlet of the slurry conveying pipeline 3 is connected with the slurry pump 2;
the slurry weighing tank 5 and the clear water proportioning tank 7 are respectively provided with a slurry weighing device and a clear water weighing device, the slurry weighing device and the clear water weighing device both comprise a weighing frame 18 and a weighing sensor 15, the weighing sensor 15 is a pull-type sensor, the upper end of the pull-type sensor on the slurry weighing tank 5 is connected with the weighing frame 18 in a hanging manner, and the lower end of the pull-type sensor is connected with the slurry weighing tank 5 in a hanging manner; one end of a pull-type weighing sensor 15 on the clear water weighing device is connected with a weighing frame 18, and the other end is connected with a clear water proportioning tank 7 in a hanging mode.
The middle position above the slurry weighing tank 5 is communicated with a clear water pipeline 4, the other end of the clear water pipeline 4 is communicated with a high-pressure water source, and the clear water pipeline 4 is provided with a high-pressure water valve 19. The slurry in the original slurry tank 1 is sewage slurry generated in the concrete production of the mixing plant, the slurry is conveyed into a slurry measuring tank 5 through a slurry conveying pipeline 3, the slurry water which exceeds the upper overflow hole 14 overflows to the lower clean water proportioning tank 7 through the overflow pipe 6, when the clear water weighing device detects the weight of overflowed slurry, the slurry is stopped being conveyed into the slurry weighing tank 5, and the slurry is filled in the slurry weighing tank 5, so that the volume of the slurry in the slurry weighing tank can be known, then the weight of the slurry is weighed according to the slurry weighing device, so that the solid content in the slurry can be calculated, and the solid content of the slurry overflowing to the clear water proportioning tank 7 is added, the clear water content is accurately proportioned according to the sewage content required in concrete production, and the concrete sludge slurry is proportioned again in a weighing mode so as to meet the concentration requirement of the standard of recycling and realize the recycling of the concrete sewage.
The inside of the sewage stirring tank 8 is provided with a stirring shaft 10 and a stirring rod 9 positioned on the stirring shaft 10, the top of the sewage stirring tank is provided with a stirring motor 12, and the output shaft of the stirring motor 12 is coaxial with the stirring shaft 10. The sewage that the ratio is good all discharges to in the sewage agitator tank 8, drives (mixing) shaft 10 and puddler 9 by agitator motor 12 and rotates, mixes the stirring to the sewage that the ratio was accomplished, and it has sewage conveying pipeline 13 to communicate between sewage agitator tank 8 and thick liquid weighing tank 5, and sewage conveying pipeline 13's import department is connected with sewage pump 11, and sewage pump 11 is located sewage agitator tank 8. The mixed sewage is conveyed into the slurry weighing tank 5 by the sewage pump 11 and the sewage conveying pipeline 13 to detect whether the mixed sewage meets the requirements, and if the mixed sewage meets the requirements, the sewage in the sewage stirring tank 8 is further pumped out for producing concrete.
Still include the PLC controller, thick liquid valve 16 and clear water valve 17 are pneumatic butterfly valve, and the output of PLC controller is connected with thick liquid valve 16, clear water valve 17, thick liquid water pump 2, sewage pump 11, clear water valve 17 electricity respectively, and the input of PLC controller links to each other with weighing sensor 15's output. The opening or closing of the pneumatic butterfly valve, the slurry pump 2, the sewage pump 11 and the clear water valve 17 is controlled by the PLC, the whole system is more automatic, and the PLC can adopt the model of S7-1200.
A rotary spray head is arranged at the outlet of the clean water pipeline 4. The rotary spray head can adopt an installation mode adopted in greening irrigation, namely an installation sleeve is sleeved at the outlet of the clear water pipeline 4, a bearing is embedded in the installation sleeve, the rotary spray head corresponding to the clear water pipeline 4 is arranged in the bearing, and a water outlet inclined to the same side is arranged at the bottom edge of the rotary spray head, which is common general knowledge and conventional means of technicians in the field and is not explained more herein; when the clear water is proportioned, the rotary spray head can be utilized to clean the slurry on the inner wall of the slurry weighing tank 5, so that the influence on the next detection of solid content is avoided, and the accuracy of slurry compounding is further improved.
The working principle of the utility model is as follows: firstly, starting a slurry pump 2, conveying slurry in a raw slurry tank 1 into a slurry weighing tank 5 through a slurry conveying pipeline 3, when the slurry overflows into a clear water proportioning tank 7 through an overflow pipe 6, transmitting a weight signal to a PLC (programmable logic controller) after a weighing sensor 15 above the clear water proportioning tank 7 detects the weight, controlling the slurry pump 2 to stop running through the PLC, detecting the weight of the slurry inside the slurry through the weighing sensor 15 on the slurry weighing tank 5, calculating the solid content of the slurry in the slurry weighing tank 5 according to the volume of the slurry weighing tank 5, then adding the solid content of the slurry overflowing from the clear water proportioning tank 7, after the detection is finished, opening a slurry valve 16 and a clear water valve 17 to discharge the slurry into a sewage stirring tank 8 below, starting proportioning clear water according to the total solid content, closing the clear water valve 17, opening a high-pressure water valve 19 on a clear water pipeline 4, in the process of clean water proportioning, simultaneously, under the action of a rotary spray head, high-pressure water is sprayed on the inner wall of a slurry weighing tank 5, slurry adhered on the inner wall of the slurry weighing tank 5 is washed clean, influence on next solid content calculation is avoided, a weighing sensor 15 on a clean water proportioning tank 7 weighs, a weight signal is transmitted to a PLC (programmable logic controller), the PLC controls the closing of a high-pressure water valve 19 according to the weight of clean water set in advance, after the clean water proportioning is finished, a clean water valve 17 is opened, clean water is discharged into a sewage stirring tank 8, a stirring motor 12 is started to enable a stirring shaft 10 and a stirring rod 9 to rotate to stir and mix the sewage and the clean water which are proportioned, then the mixed sewage is conveyed into the slurry weighing tank 5 through a sewage conveying pipeline 13 through a sewage pump 11, whether the prepared sewage meets the requirement or not is detected again, and the detection mode is the same as above, and will not be described in too much detail.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that certain features may be replaced by equivalents thereof; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A concrete mixing plant slurry water compounding system is characterized by comprising a slurry water weighing tank (5), a clear water proportioning tank (7) and a sewage stirring tank (8) which are sequentially communicated from top to bottom and have fixed capacity, wherein an overflow hole (14) is formed in the upper end of the side wall of the slurry water weighing tank (5), an overflow pipe (6) is arranged at the overflow hole (14), the outlet of the overflow pipe (6) is communicated with the clear water proportioning tank (7), and a slurry valve (16) and a clear water valve (17) are respectively arranged at the outlets of the slurry water weighing tank (5) and the clear water proportioning tank (7);
a slurry weighing device and a clear water weighing device are respectively arranged on the slurry weighing tank (5) and the clear water proportioning tank (7);
a raw slurry tank (1) is arranged on one side of the sewage stirring tank (8), a slurry pump (2) is arranged in the raw slurry tank (1), a slurry conveying pipeline (3) is communicated between the raw slurry tank (1) and the slurry weighing tank (5), and an inlet of the slurry conveying pipeline (3) is connected with the slurry pump (2);
the middle position above the slurry weighing tank (5) is communicated with a clear water pipeline (4), the other end of the clear water pipeline (4) is communicated with a high-pressure water source, and a high-pressure water valve (19) is arranged on the clear water pipeline (4).
2. The concrete mixing station slurry water mixing system according to claim 1, characterized in that: the slurry weighing device and the clear water weighing device both comprise a weighing frame (18) and a weighing sensor (15), one end of the weighing sensor (15) on the slurry weighing tank (5) is connected with the weighing frame (18), and the other end of the weighing sensor is connected with the slurry weighing tank (5); one end of a weighing sensor (15) of the clear water weighing device is connected with the weighing frame (18), and the other end of the weighing sensor is connected with the clear water proportioning tank (7).
3. The concrete mixing station slurry water mixing system according to claim 2, characterized in that: the weighing sensor (15) is a pull-type sensor, the upper end of the pull-type sensor of the slurry weighing tank (5) is connected with the weighing frame (18) in a hanging manner, and the lower end of the pull-type sensor of the slurry weighing tank (5) is connected with the slurry weighing tank (5) in a hanging manner; one end of a pull-type weighing sensor (15) on the clear water weighing device is connected with the weighing frame (18), and the other end of the pull-type weighing sensor is connected with the clear water proportioning tank (7).
4. The concrete mixing station slurry water mixing system according to claim 1, characterized in that: a sewage conveying pipeline (13) is communicated between the sewage stirring tank (8) and the slurry weighing tank (5), a sewage pump (11) is connected to the inlet of the sewage conveying pipeline (13), and the sewage pump (11) is positioned in the sewage stirring tank (8).
5. The concrete mixing station slurry water mixing system according to claim 2, characterized in that: still include the PLC controller, thick liquid valve (16) and clear water valve (17) are pneumatic butterfly valve, the output of PLC controller is connected with thick liquid valve (16), clear water valve (17), thick liquid pump (2), sewage pump (11), clear water valve (17) electricity respectively, and the input of PLC controller links to each other with the output of weighing sensor (15).
6. The concrete mixing station slurry water mixing system according to claim 1, characterized in that: the sewage stirring tank (8) is internally provided with a stirring shaft (10) and a stirring rod (9) positioned on the stirring shaft (10), the top of the sewage stirring tank is provided with a stirring motor (12), and an output shaft of the stirring motor (12) is coaxially arranged with the stirring shaft (10).
7. The concrete mixing station slurry water mixing system according to claim 1, characterized in that: and a rotary spray head is arranged at the outlet of the clean water pipeline (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122987358.6U CN216367589U (en) | 2021-12-01 | 2021-12-01 | Concrete mixing plant slurry water compounding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122987358.6U CN216367589U (en) | 2021-12-01 | 2021-12-01 | Concrete mixing plant slurry water compounding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366266A (en) * | 2022-09-29 | 2022-11-22 | 中铁十二局集团有限公司 | Method and equipment for weighing aggregate water with stable concrete water consumption |
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2021
- 2021-12-01 CN CN202122987358.6U patent/CN216367589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115366266A (en) * | 2022-09-29 | 2022-11-22 | 中铁十二局集团有限公司 | Method and equipment for weighing aggregate water with stable concrete water consumption |
| CN115366266B (en) * | 2022-09-29 | 2023-07-25 | 中铁十二局集团有限公司 | Method and equipment for weighing aggregate water for stabilizing water consumption of concrete |
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