CN215427681U - Liquid grinding aid addition system - Google Patents
Liquid grinding aid addition system Download PDFInfo
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- CN215427681U CN215427681U CN202120654200.4U CN202120654200U CN215427681U CN 215427681 U CN215427681 U CN 215427681U CN 202120654200 U CN202120654200 U CN 202120654200U CN 215427681 U CN215427681 U CN 215427681U
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Abstract
The utility model discloses a liquid grinding aid adding system which comprises a liquid storage tank, a liquid outlet pipeline, a first filtering device, a flowmeter, a metering pump and a control system, wherein the middle lower part of the liquid storage tank is connected with the liquid outlet pipeline, the liquid outlet pipeline is connected with the flowmeter and the metering pump through the first filtering device, the flowmeter and the metering pump are both connected with the control system, a liquid outlet pipe is arranged at the bottom of the liquid storage tank, a liquid outlet valve is arranged on the liquid outlet pipe, a first recovery pipeline is further arranged at the bottom of the liquid storage tank, a recovery valve is arranged on the first recovery pipeline, the first recovery pipeline is connected with a recovery tank through a second filtering device, a second recovery pipeline is arranged at the bottom of the recovery tank, and the second recovery pipeline is connected with the liquid storage tank through a pump body. The liquid grinding aid adding system has stable liquid output, can atomize the liquid grinding aid and then spray the atomized liquid grinding aid, and has good mixing effect with cement and high consistency of cement performance; the liquid storage tank is easy to clean, the liquid grinding aid at the lower part of the liquid storage tank is convenient to recover, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of adding of liquid grinding aids in cement production, in particular to a liquid grinding aid adding system.
Background
The cement grinding aid is a chemical additive for improving the grinding effect and performance of cement, can obviously improve the machine-hour output of cement and the strength of cement at each age, and improves the fluidity of the cement. The cement grinding aid can greatly reduce the phenomenon of electrostatic adsorption ball inclusion formed in the grinding process and can reduce the tendency of secondary agglomeration of ultrafine particles formed in the grinding process. The common cement grinding aid comprises liquid and powder, and can obviously improve the output of a grinding machine, or improve the product quality, or reduce the power consumption of grinding. Therefore, the quality grade, the adding proportion and the contact area with cement of the cement grinding aid directly influence the grinding effect and performance of the cement. The traditional liquid grinding aid production mostly adopts a compound production process, has more impurities, influences the quality grade of the liquid grinding aid, easily causes the phenomenon of pump blockage, and causes the abnormal work of cement grinding. In addition, the liquid grinding aid adding system commonly used in the market at present usually stores the liquid grinding aid in a liquid storage tank, and in order to avoid excessive impurities from entering a liquid outlet pipeline and adding the impurities into cement along with the liquid outlet pipeline, the liquid outlet pipeline is usually arranged at the middle lower part of the liquid storage tank, the liquid outlet pipeline is connected with a filtering device, a flowmeter and a metering pump, the flow of the liquid outlet pipeline is monitored by the flowmeter, and the liquid outlet pipeline is pumped out by the metering pump. This approach is ubiquitous: 1. the liquid grinding aid pumped out by the metering pump is not continuous and inconvenient, and particularly when a plunger pump is used, although the total amount of the liquid output pipeline is unchanged in unit time, the instantaneous flow fluctuation is large, and the cement grinding effect and performance are influenced; 2. the liquid grinding aid at the lower part of the liquid storage tank cannot be recovered or is inconvenient to recover and recycle, so that the resource waste is serious; 3. when the variety of the liquid grinding aid is changed, the liquid storage tank is not easy to clean, and the liquid grinding aids of different varieties are easy to react with each other; 4. the contact area between the liquid grinding aid flowing out of the liquid outlet pipeline and the cement is small, so that the consistency of the performance of the cement is easily influenced; 5. the filter screen in the filter device needs to be frequently replaced, the quality adjustment and filtration times of different batches of cement grinding aids are not easy to adjust, and the requirements in various aspects cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a liquid grinding aid adding system which has stable liquid output, can atomize and spray the liquid grinding aid, has good mixing effect with cement and has high consistency of cement performance; the liquid storage tank is easy to clean, the liquid grinding aid at the lower part of the liquid storage tank is convenient to recover, and the cost is low.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a liquid grinding aid addition system, includes the liquid storage pot, the drain pipe, first filter equipment, the flowmeter, measuring pump and control system, lower part and drain pipe link to each other in the liquid storage pot, the drain pipe links to each other through first filter equipment and flowmeter, measuring pump, flowmeter, measuring pump all link to each other with control system the liquid storage pot bottom is equipped with the fluid-discharge tube, is equipped with fluid-discharge valves on the fluid-discharge tube the liquid storage pot bottom still is equipped with first recovery pipeline, is equipped with the recovery valve on first recovery pipeline, first recovery pipeline links to each other with the recovery tank through second filter equipment the recovery tank bottom is equipped with second recovery pipeline, and second recovery pipeline links to each other through the pump body and liquid storage pot.
Preferably, be equipped with the buffer tank on the drain pipe way, the buffer tank is located between measuring pump and the flowmeter to still be equipped with the back pressure valve between buffer tank and flowmeter.
Preferably, the upper part of the liquid storage tank is provided with a plurality of cleaning nozzles, the cleaning nozzles are connected with a high-pressure water pump, and the high-pressure water pump is connected with a water source.
Preferably, an atomizing nozzle is arranged at the end of the liquid outlet pipe.
Further preferably, the atomizing spray head side of the liquid outlet pipeline is connected with the bottom of the buffer tank.
In the technical scheme, the liquid grinding aid stored in the liquid storage tank is filtered by a plurality of filter screens with different filter apertures in the first filtering device, then is pumped to the buffer tank by the metering pump, and is sprayed out from the buffer tank through the back pressure valve and the flowmeter through the atomizing nozzle; because a plurality of filter screens with different filter apertures are distributed in the first filter device, the filter times and the filter quality can be flexibly adjusted according to the actual production condition, and the impurities are dispersed by the multi-stage filter screens, so that the replacement frequency of the filter screens is greatly reduced; the arrangement of the buffer tank enables the liquid grinding aid pumped out by the metering pump to be buffered and stabilized, then the liquid grinding aid is conveyed to the flowmeter at constant pressure through the backpressure valve, and the liquid grinding aid is finally released in a vaporific form through the atomizing nozzle after being monitored by the flowmeter, the contact area of the vaporific liquid grinding aid and cement is greatly higher than that of the water-flow form, so that the mixing effect of the liquid grinding aid and the cement is greatly improved, and the performance consistency of the cement is improved; the flow measured by the flowmeter is transmitted to a control system, and the control system automatically adjusts the unit flow of the metering pump according to the flow data measured by the flowmeter, so that the liquid grinding aid is sprayed out from the atomizing nozzle at a continuous and constant flow and then is added to the cement in the mill; the first recovery pipeline is arranged at the bottom of the liquid storage tank, and is connected with the recovery tank through the second filtering device, so that the liquid grinding aid at the lower part of the liquid storage tank can be conveniently recovered into the recovery tank after being filtered, and the liquid grinding aid in the recovery tank can be conveniently and quickly injected into the liquid storage tank again through the pump body and the second recovery pipeline according to production needs, thereby avoiding the waste of the liquid grinding aid at the lower part of the liquid storage tank; the high-pressure water pump is started, and the cleaning nozzle at the upper part of the liquid storage tank can quickly clean the liquid storage tank; the first pressure sensor and the second pressure sensor monitor the liquid pressure of the corresponding pipelines in real time on line so as to facilitate an operator to judge whether the corresponding filter screen is replaced.
Drawings
Figure 1 is a schematic front view of the present liquid grinding aid addition system.
Detailed Description
The utility model will be further explained with reference to the accompanying drawings:
as shown in figure 1, the liquid grinding aid adding system comprises a liquid storage tank 10, a liquid outlet pipeline 20 which is arranged at the middle lower part of the liquid storage tank 10 and connected with the liquid storage tank 10, a first filtering device 30, a flowmeter 40, a metering pump 50 and a control system, wherein the liquid outlet pipeline 20 is connected with the flowmeter 40 and the metering pump 50 through the first filtering device 30, the flowmeter 40 and the metering pump 50 are both connected with the control system, a liquid outlet pipe 60 is arranged at the bottom of the liquid storage tank 10, a liquid outlet valve 61 is arranged on the liquid outlet pipe 60, the liquid outlet pipe 60 is matched with the liquid outlet valve 61 to empty liquid in the liquid storage tank 10, a first recovery pipeline 70 is further arranged at the bottom of the liquid storage tank 10, a recovery valve 71 is arranged on the first recovery pipeline 70, the first recovery pipeline 70 is connected with a recovery tank 90 through a second filtering device 80, so that the liquid grinding aid at the lower part of the liquid storage tank 10 can be conveniently recovered to the recovery tank 70 through the first recovery pipeline 70 after being filtered through the second filtering device 80 according to actual production conditions 90, according to production requirements, the liquid grinding aid in the recovery tank 90 can be injected into the liquid storage tank 10 again through a second recovery pipeline 72 arranged at the bottom of the recovery tank 90 and a pump body 73 arranged on the second recovery pipeline 72, so that waste of the liquid grinding aid at the lower part of the liquid storage tank 10 is avoided; in the present embodiment, a buffer tank 100 is provided in the liquid outlet pipe 20, the buffer tank 100 is provided between the metering pump 50 and the flow meter 40, and a back pressure valve 110 is further provided between the buffer tank 100 and the flow meter 40. Thus, the liquid grinding aid stored in the liquid storage tank 10 is firstly filtered by the filter screen of the first filtering device 30, then pumped into the buffer tank 100 by the metering pump 50 for buffering and pressure stabilization, and then released into a mill or added into cement by the buffer tank 100 through the backpressure valve 110 and the flow meter 40; the buffer tank 100 is arranged so that the liquid grinding aid pumped out by the metering pump 50 is firstly buffered and stabilized, then is conveyed to the flow meter 40 through the backpressure valve 110 at constant pressure, the flow measured by the flow meter 40 is transmitted to the control system, and the control system automatically adjusts the unit flow of the metering pump 50 according to the flow data measured by the flow meter 40, so that the liquid grinding aid is added into a mill or cement at a continuous and constant flow; when the liquid grinding aid in the liquid storage tank 10 needs to be recovered or the batch and variety of the liquid grinding aid are not used for a while, the recovery valve 71 is opened, the liquid grinding aid is filtered by the second filtering device 80 and then recovered to the recovery tank 90 through the first recovery pipeline 70, and the liquid grinding aid in the recovery tank 90 is injected into the liquid storage tank 10 again through the second recovery pipeline 72 and the pump body 73 according to the production requirement, so that the waste of the liquid grinding aid at the lower part of the liquid storage tank 10 is avoided.
In a preferred embodiment, a plurality of cleaning nozzles 120 are provided at an upper portion of the reservoir tank 10, and the cleaning nozzles 120 are connected to a water source by a high pressure water pump. The high pressure water pump is started, and the cleaning nozzle 120 at the upper part of the liquid storage tank 10 can quickly clean the liquid storage tank 10. Furthermore, an atomizing nozzle 130 can be arranged at the terminal of the liquid outlet pipe 20, so that the liquid grinding aid in the liquid outlet pipe 20 is released in a mist form through the atomizing nozzle 130, the contact area of the liquid grinding aid in the mist form and the cement is greatly higher than that of the liquid grinding aid in the water flow form, the mixing effect of the liquid grinding aid and the cement is greatly improved, and the consistency of the cement performance is improved; usually, the atomizing nozzle 130 side of the liquid outlet pipeline 20 is connected with the bottom of the buffer tank 100, so as to avoid the liquid accumulation in the buffer tank 100.
In a preferred embodiment, each of the first and second filtering devices 30 and 80 includes a plurality of Y-shaped filters 31, typically 2-3, and a filtering net 32 is disposed in each of the Y-shaped filters 31, wherein the filtering holes of the filtering net 32 are gradually smaller from the end near the reservoir 10 to the end far from the reservoir 10. Therefore, the filtering times and the filtering quality of the liquid grinding aid can be flexibly adjusted according to the actual production conditions, multi-stage filtration is achieved, impurities are dispersed by the multi-stage filter screen 32, and the replacement frequency of the filter screen 32 is greatly reduced.
In another preferred embodiment, a first pressure sensor 140 is disposed on the outlet pipe 20, the first pressure sensor 140 is further disposed between the first filtering device 30 and the metering pump 50, a second pressure sensor 150 is disposed on the first recycling pipe 70, and the second pressure sensor 150 is further disposed between the second filtering device 80 and the pump body 73, so that the liquid pressure in the corresponding pipe is monitored online in real time by the first pressure sensor 140 and the second pressure sensor 150, so as to facilitate the operator to determine whether the filter screen of the corresponding filtering device is replaced. A PH value tester 160 can be arranged on the liquid outlet pipeline 20 to monitor the PH value of the liquid grinding aid in the liquid outlet pipeline 20 in real time.
In the above technical scheme, the liquid grinding aid stored in the liquid storage tank 10 is firstly filtered by a plurality of filter screens 32 with different filter apertures in the first filtering device 30, then pumped to the buffer tank 100 by the metering pump 50, buffered and stabilized by the buffer tank 100, then conveyed to the flow meter 40 by the backpressure valve 110 at constant pressure, and the flow measured by the flow meter 40 is transmitted to the control system, the control system automatically adjusts the unit flow of the metering pump 50 according to the flow data measured by the flow meter 40, so as to achieve the purpose that the liquid grinding aid is finally added to the cement in the mill in a mist form through the atomizing nozzle 130 at continuous and constant flow; the filtering times of the filter screen 32 and the filtering aperture of the filter screen 32 are flexibly adjusted according to the actual production situation, different filtering quality requirements are met, and the frequency of replacing the filter screen 32 is greatly reduced due to the arrangement of the multi-stage filter screen 32; when the liquid grinding aid in the liquid storage tank 10 needs to be recovered or the liquid grinding aid of the batch and the variety is not used for a while, the recovery valve 71 is opened, the liquid grinding aid is filtered by the second filtering device 80 and then recovered into the recovery tank 90 through the first recovery pipeline 70, and the liquid grinding aid in the recovery tank 90 is injected into the liquid storage tank 10 again through the second recovery pipeline 72 and the pump body 73 according to the production requirement, so that the waste of the liquid grinding aid at the lower part of the liquid storage tank 10 is avoided; the high-pressure water pump is started, the cleaning spray head 120 at the upper part of the liquid storage tank 10 can quickly clean the liquid storage tank 10, and the liquid discharge pipe 60 is matched with the liquid discharge valve 61 to empty the liquid in the liquid storage tank 10; the first pressure sensor 140 and the second pressure sensor 150 monitor the liquid pressure of the corresponding pipeline on line in real time, so that an operator can conveniently judge whether the filter screen of the corresponding filter device is replaced.
The embodiment is only for explaining the conception and the implementation of the utility model, and does not limit the same, and the technical solution without substantial change is still in the protection scope under the conception of the utility model.
Claims (5)
1. The utility model provides a liquid grinding aid addition system, includes the liquid storage pot, the drain pipe, first filter equipment, the flowmeter, measuring pump and control system, lower part and drain pipe link to each other in the liquid storage pot, the drain pipe links to each other through first filter equipment and flowmeter, measuring pump, flowmeter, measuring pump all link to each other with control system the liquid storage pot bottom is equipped with the fluid-discharge tube, is equipped with the flowing back valve on the fluid-discharge tube, its characterized in that the liquid storage pot bottom still is equipped with first recovery pipeline, is equipped with the recovery valve on first recovery pipeline, first recovery pipeline links to each other with the recovery tank through second filter equipment the recovery tank bottom is equipped with second recovery pipeline, and second recovery pipeline links to each other through pump body and liquid storage pot.
2. The liquid grinding aid addition system of claim 1, wherein a buffer tank is disposed on the effluent line between the metering pump and the flow meter, and a back pressure valve is disposed between the buffer tank and the flow meter.
3. The liquid grinding aid addition system of claim 2 wherein a plurality of cleaning jets are provided in the upper portion of the reservoir, said cleaning jets being connected to a high pressure water pump, said high pressure water pump being connected to a water source.
4. The liquid grinding aid addition system of claim 2, wherein an atomizer is disposed at the end of the outlet conduit.
5. The liquid grinding aid addition system of claim 4, wherein the atomizing spray side of the liquid outlet line is connected to the bottom of the surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654200.4U CN215427681U (en) | 2021-03-31 | 2021-03-31 | Liquid grinding aid addition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120654200.4U CN215427681U (en) | 2021-03-31 | 2021-03-31 | Liquid grinding aid addition system |
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| Publication Number | Publication Date |
|---|---|
| CN215427681U true CN215427681U (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120654200.4U Active CN215427681U (en) | 2021-03-31 | 2021-03-31 | Liquid grinding aid addition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751177A (en) * | 2021-03-31 | 2021-12-07 | 唐山冀东水泥外加剂有限责任公司 | Liquid grinding aid adds device |
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2021
- 2021-03-31 CN CN202120654200.4U patent/CN215427681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751177A (en) * | 2021-03-31 | 2021-12-07 | 唐山冀东水泥外加剂有限责任公司 | Liquid grinding aid adds device |
| CN113751177B (en) * | 2021-03-31 | 2023-03-07 | 唐山冀东水泥外加剂有限责任公司 | Liquid grinding aid adds device |
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