阅读说明：本技术 一种卧螺离心机选型实验循环系统、方法及应用 (horizontal decanter centrifuge type selection experiment circulating system, method and application ) 是由 陆银林 祁亚辉 杨洛 于 2019-09-24 设计创作，主要内容包括：本发明属于卧螺离心机选型实验技术领域,公开了一种卧螺离心机选型实验循环系统、方法及应用,第一螺杆泵通过管道与药剂混合管道混合器及自清洗系统连接,药剂混合管道混合器及自清洗系统通过软管与卧螺离心机连接,卧螺离心机与脱水机主电机连接,脱水机主电机与液压站系统连接；卧螺离心机左端通过管道与液相收集罐连接,液相收集罐通过管道与第三螺杆泵连接,第三螺杆泵通过管道与固相收集罐,固相收集罐位于卧螺离心机右端的开口的下端；固相收集罐通过管道与第二螺杆泵连接,第二螺杆泵通过管道与冷却罐连接,冷却罐与第一螺杆泵连接。本发明可以实现95％的物料可以实现循环实验,从而丰富实验数据,提高实验参数的可靠性。(The invention belongs to the technical field of selection experiments of horizontal screw centrifuges, and discloses a selection experiment circulating system, a selection experiment method and application of a horizontal screw centrifuge.A first screw pump is connected with a medicament mixing pipeline mixer and a self-cleaning system through pipelines, the medicament mixing pipeline mixer and the self-cleaning system are connected with the horizontal screw centrifuge through hoses, the horizontal screw centrifuge is connected with a main motor of a dehydrator, and the main motor of the dehydrator is connected with a hydraulic station system; the left end of the horizontal screw centrifuge is connected with a liquid phase collecting tank through a pipeline, the liquid phase collecting tank is connected with a third screw pump through a pipeline, the third screw pump is connected with a solid phase collecting tank through a pipeline, and the solid phase collecting tank is positioned at the lower end of an opening at the right end of the horizontal screw centrifuge; the solid phase collecting tank is connected with the second screw pump through a pipeline, the second screw pump is connected with the cooling tank through a pipeline, and the cooling tank is connected with the first screw pump. The invention can realize that 95 percent of materials can realize circulation experiments, thereby enriching experimental data and improving the reliability of experimental parameters.)

1. The utility model provides a spiral shell centrifuge lectotype experiment circulation system crouches, its characterized in that, spiral shell centrifuge lectotype experiment circulation system crouches is provided with:

a first screw pump;

The first screw pump is connected with the medicament mixing pipeline mixer and the self-cleaning system through pipelines, the medicament mixing pipeline mixer and the self-cleaning system are connected with the horizontal screw centrifuge through hoses, the horizontal screw centrifuge is provided with a large end shaft, and the horizontal screw centrifuge is provided with a small end shaft;

the horizontal screw centrifuge is connected with a main motor of the dehydrator, and the main motor of the dehydrator is connected with a hydraulic station system; the left end of the horizontal screw centrifuge is connected with a liquid phase collecting tank through a pipeline, the liquid phase collecting tank is a stainless steel barrel, and a stirrer is arranged inside the liquid phase collecting tank;

The liquid phase collecting tank is connected with a third screw pump through a pipeline, the third screw pump is connected with the solid phase collecting tank through a pipeline, and the solid phase collecting tank is positioned at the lower end of an opening at the right end of the horizontal screw centrifuge;

The solid phase collecting tank is connected with the second screw pump through a pipeline, the second screw pump is connected with the cooling tank through a pipeline, and the cooling tank is connected with the first screw pump.

2. The selective experiment circulating system for the horizontal decanter centrifuge as claimed in claim 1, wherein the medicament mixing pipeline mixer and the self-cleaning system are provided with one-way valves, the one-way valves are connected with electromagnetic valves, and the electromagnetic valves are connected with manual valves; the medicament mixing pipeline mixer and the self-cleaning system are provided with a feeding electromagnetic flowmeter, and the feeding electromagnetic flowmeter is connected with a hose.

3. the decanter centrifuge model selection experiment circulation system of claim 1, wherein the decanter centrifuge big end shaft is provided with a temperature sensor and a speed sensor; and a vibration sensor and a temperature sensor are arranged on the small end shaft of the horizontal screw centrifuge.

4. The decanter centrifuge sizing experiment circulation system of claim 1, wherein the cooling tank is a stainless steel tank with a stirrer mounted therein.

5. the decanter centrifuge model selection experiment circulation system of claim 1, wherein the hydraulic station system is connected with a hydraulic station through a hydraulic oil pipe, the hydraulic station is connected with a manual valve through a hydraulic oil pipe, and the manual valve is connected with an oil tank;

The hydraulic station is provided with a hydraulic motor, a hydraulic fan motor, a pressure gauge, a temperature sensor, a pressure sensor and a liquid level sensor in a distributed mode.

6. The decanter centrifuge type-selection experiment circulating system of claim 1, wherein the solid phase collection tank is a stainless steel barrel, an electric heating device is arranged outside the stainless steel barrel, and a heat insulating material is wrapped on the electric heating device; the bucket is internally provided with a stirrer, wherein the blade of the stirrer is in a scraper blade shape.

7. The decanter centrifuge type-selection experimental circulation system as claimed in claim 1, wherein said liquid phase collection tank, cooling tank and solid phase collection tank are provided with an on-line PH meter, an ultrasonic level meter and an on-line densimeter.

8. A decanter centrifuge sizing experimental cycling method according to claim 1, characterized in that it comprises:

directly separating the obtained solid phase and the liquid phase, directly conveying the collected separation liquid to a solid phase collection tank, and mixing and homogenizing at a high speed for reuse;

After the materials added with the organic polymeric flocculant are separated, directly conveying the collected separation liquid to a solid phase collection tank, stirring and homogenizing the mixed liquid in the solid phase collection tank, heating to 60-80 ℃ to degrade the flocculant in the liquid phase, conveying to a cooling tank, and repeatedly using after cooling and homogenizing.

9. The application of the experiment circulation system for selecting the horizontal decanter centrifuge as defined in any one of claims 1-7 in the experiment for selecting the horizontal decanter centrifuge.

Technical Field

The invention belongs to the technical field of horizontal screw centrifuge model selection experiments, and particularly relates to a circulation system, a method and application of a horizontal screw centrifuge model selection experiment.

background

Currently, the closest prior art: the model selection experiment of the horizontal decanter centrifuge is the core work of accurate model selection of a horizontal decanter centrifuge product, provides technical service for the sale and after-sale of the product, and provides main basic data for the design and research and development of the product.

1) In general, materials which need to be selected by an experimental device are newly developed or other processes are originally adopted, and the original processes and equipment need to be changed. The traditional treatment technology is that enough materials need to be treated and are used for multiple experiments, and a common treatment process comprises a centrifugal machine, a pump and a barrel, wherein the experiments are carried out by directly treating the materials in a manual mode or manually adding a flocculating agent.

2) There is a set of suggested technology, connects centrifuge, pump, jar body with the pipeline, goes on through the manual mode, does not have a system debugging to each process, only relies on operating personnel's cognitive regulation and control, does not have an on-line measuring record process. Although material repeat experiments could be achieved, the data was not accurate.

The materials processed in the model selection laboratory are complex and various, and relate to various water treatment fields such as municipal administration, chemical industry, pharmacy, metallurgy and the like. The experiment must produce a certain amount of waste which needs special treatment, and the sample sending amount of a client is strictly limited. However, if stable and accurate model selection experiment parameters need to be obtained, the model selection experiment parameters can be realized only by long-time (large amount of materials) experiments. Because centrifuge parameters need to be adjusted according to the slag and liquid discharge conditions, an adjustment process is generally needed, slag and water discharge data are needed to be checked after adjustment, and long-time data analysis is needed. If the data is not ideal, the experiment needs to be repeated and then the parameters are adjusted until the ideal result or the experiment failure can not meet the requirements.

in summary, the problems of the prior art are as follows: the conventional experiment circulating system of the horizontal screw centrifuge has longer time for acquiring the parameters of the model selection experiment.

The difficulty of solving the technical problems is as follows: the equipment matching requirement is high, the requirement on electrical automation is high, the requirement on the precision of a required online detection instrument is high, data are uploaded in real time, the whole set of equipment is high in cost, and the device is suitable for processing high-requirement refined materials.

the significance of solving the technical problems is as follows:

the system can be automatically controlled and started and stopped by one key.

The solid content of the feed, the weight of the original material, the weight of the solid after treatment, the solid content of the solid, the weight of the liquid, the SS of the liquid and other data can be calculated after the material is treated for the first time.

If a flocculant experiment is needed, the flocculant of the model selection experiment can be simulated through a small early-stage flocculant test, and the flocculant is automatically added by the dosing device according to the amount and is more accurately controlled.

If the material property is complex, the data needs to be compared in multiple experiments, and the experiment can be carried out without providing extra amount of materials by customers.

If the flocculant experiment is carried out, the organic flocculant is added into the raw material, and if the experiment is not processed, the interference is generated on the material, the experimental data acquisition is not facilitated, and the experimental data is not scientific. The treated clear liquid can be conveyed to a solid phase collecting tank through a screw pump, stirred uniformly and heated to 60-80 ℃ to degrade and separate the flocculating agent mixed in the materials. If the material needs to be heated, the material is heated to the required problem, and then the flocculant comparison experiment is performed again according to the requirement; if material itself is the normal atmospheric temperature, because this jar body has the heat preservation material, the material after will be even carries the cooling tank through the screw pump, and the cooling is to the normal atmospheric temperature, further flocculating agent contrast experiment.

Basic data after the system is tested are displayed on the touch screen, so that the system is clear at a glance, and experimental data can be obtained only by simple calculation.

The existing type selection experiment obtains stable and accurate type selection experiment parameters, and can be realized only by a long time and a large amount of material experiments.

Disclosure of Invention

aiming at the problems in the prior art, the invention provides a horizontal decanter centrifuge type selection experiment circulating system, a horizontal decanter centrifuge type selection experiment circulating method and application.

The invention is realized in such a way that a horizontal decanter centrifuge type selection experiment circulating system is provided with:

A first screw pump;

The first screw pump is connected with the medicament mixing pipeline mixer and the self-cleaning system through pipelines, the medicament mixing pipeline mixer and the self-cleaning system are connected with the horizontal screw centrifuge through hoses, the horizontal screw centrifuge is provided with a large end shaft, and the horizontal screw centrifuge is provided with a small end shaft;

The horizontal screw centrifuge is connected with a main motor of the dehydrator, and the main motor of the dehydrator is connected with a hydraulic station system; the left end of the horizontal screw centrifuge is connected with a liquid phase collecting tank through a pipeline, the liquid phase collecting tank is a stainless steel barrel, and a stirrer is arranged inside the liquid phase collecting tank;

The liquid phase collecting tank is connected with a third screw pump through a pipeline, the third screw pump is connected with the solid phase collecting tank through a pipeline, and the solid phase collecting tank is positioned at the lower end of an opening at the right end of the horizontal screw centrifuge;

The solid phase collecting tank is connected with the second screw pump through a pipeline, the second screw pump is connected with the cooling tank through a pipeline, and the cooling tank is connected with the first screw pump.

Further, the medicament mixing pipeline mixer and the self-cleaning system are provided with one-way valves, the one-way valves are connected with electromagnetic valves, and the electromagnetic valves are connected with manual valves; the medicament mixing pipeline mixer and the self-cleaning system are provided with a feeding electromagnetic flowmeter, and the feeding electromagnetic flowmeter is connected with a hose.

further, a temperature sensor and a speed sensor are arranged on the large end shaft of the horizontal screw centrifuge; and a vibration sensor and a temperature sensor are arranged on the small end shaft of the horizontal screw centrifuge.

furthermore, the cooling tank is a stainless steel barrel, and a stirrer is arranged in the barrel.

Furthermore, the liquid phase collecting tank, the cooling tank and the solid phase collecting tank are all provided with an online PH meter (with temperature display), an ultrasonic liquid level meter and an online densimeter.

Furthermore, the hydraulic station system is connected with a hydraulic station through a hydraulic oil pipe, the hydraulic station is connected with a manual valve through the hydraulic oil pipe, and the manual valve is connected with an oil tank;

The hydraulic station is provided with a hydraulic motor, a hydraulic fan motor, a pressure gauge, a temperature sensor, a pressure sensor and a liquid level sensor in a distributed mode.

Further, the solid phase collection tank is a stainless steel barrel, an electric heating device is installed outside the stainless steel barrel, and a heat insulation material is wrapped on the electric heating device; the bucket is internally provided with a stirrer, wherein the blade of the stirrer is in a scraper blade shape.

the invention also aims to provide a circulation system method for a horizontal decanter centrifuge model selection experiment, which comprises the following specific processes:

1. directly separating the obtained solid phase and the liquid phase, directly conveying the collected separation liquid to a solid phase collection tank, and mixing and homogenizing at a high speed for reuse.

2. After the materials added with the organic polymeric flocculant are separated, directly conveying the collected separation liquid to a solid phase collection tank, stirring and homogenizing the mixed liquid in the solid phase collection tank, heating to 60-80 ℃ (degrading the flocculant in the liquid phase), and conveying to a cooling tank for repeated use after cooling and homogenizing.

In summary, the advantages and positive effects of the invention are: the invention can realize that 95 percent of materials can realize circulation experiments, thereby enriching experimental data and improving the reliability of experimental parameters. Meanwhile, the liquid phase collecting tank is used for collecting liquid separated by the centrifugal machine; the solid phase collection tank is used for collecting slag discharged after separation by the centrifuge, mixing homogeneous solid phase and homogeneous liquid phase, and heating and degrading the organic flocculant in the mixed liquid; the stainless steel barrel, the outer wall of the barrel is provided with an electric heating device and wraps the heat-insulating material, and the barrel is internally provided with a stirrer (the blade of the stirrer is in a shovel blade shape), and the stirrer can be controlled in a variable speed manner; the cooling tank is used for cooling the mixed solution after the heating degradation to the normal temperature. A stainless steel barrel, wherein a stirrer is arranged in the barrel; the conveying pump is used for conveying the substances in the liquid phase collecting tank into the solid phase collecting tank, outputting the prepared materials in the solid phase collecting tank to the cooling tank or the centrifugal machine, and conveying the materials in the cooling tank to the centrifugal machine.

Drawings

Fig. 1 is a schematic structural diagram of a model selection experiment circulation system of a horizontal decanter centrifuge provided by an embodiment of the invention.

in the figure: 1. a medicament mixing pipeline mixer and a self-cleaning system; 2. a temperature sensor; 3. a third screw pump; 4. a horizontal screw centrifuge; 5. a vibration sensor; 6. a liquid phase collection tank; 7. a speed sensor; 8. a main motor of the dehydrator; 9. a hydraulic station system; 10. a hydraulic station; 11. a first screw pump; 12. a cooling tank; 13. a second screw pump; 14. and (5) a solid phase collection tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the invention provides a horizontal decanter centrifuge model selection experiment circulating system, a horizontal decanter centrifuge model selection experiment circulating method and application, and the horizontal decanter centrifuge model selection experiment circulating system is described in detail below by combining accompanying drawings.

As shown in fig. 1, the model selection experiment circulation system of the horizontal decanter centrifuge provided by the embodiment of the present invention is provided with a first screw pump 11, the first screw pump 11 is connected with a chemical mixing pipeline mixer and a self-cleaning system 1 through a pipeline, the chemical mixing pipeline mixer and the self-cleaning system 1 are connected with a horizontal decanter centrifuge 4 through a hose, the horizontal decanter centrifuge 4 is provided with a large end shaft, and the horizontal decanter centrifuge 4 is provided with a small end shaft.

The horizontal screw centrifuge 4 is connected with a main motor 8 of the dehydrator, and the main motor 8 of the dehydrator is connected with a hydraulic station system 9.

The left end of the horizontal decanter centrifuge 4 is connected with a liquid phase collecting tank 6 through a pipeline, the liquid phase collecting tank 6 is a stainless steel barrel, and the liquid phase collecting tank 6 is internally provided with a stirrer.

The liquid phase collecting tank 6 is connected with the third screw pump 3 through a pipeline, the third screw pump 3 is connected with the solid phase collecting tank 14 through a pipeline, and the solid phase collecting tank 14 is positioned at the lower end of an opening at the right end of the horizontal screw centrifuge 4.

The solid phase collecting tank 14 is connected with the second screw pump 13 through a pipeline, the second screw pump 13 is connected with the cooling tank 12 through a pipeline, and the cooling tank 12 is connected with the first screw pump 11.

Preferably, the medicament mixing pipeline mixer and self-cleaning system 1 is provided with a one-way valve, the one-way valve is connected with an electromagnetic valve, and the electromagnetic valve is connected with a manual valve; the medicament mixing pipeline mixer and the self-cleaning system 1 is provided with a feeding electromagnetic flowmeter (model number is DN50), and the feeding electromagnetic flowmeter is connected with a hose.

Preferably, the large end shaft of the horizontal screw centrifuge 4 is provided with a temperature sensor 2 and a speed sensor 7; a vibration sensor 5 and a temperature sensor 2 are arranged on the small end shaft of the horizontal screw centrifuge 4.

Preferably, the cooling tank 12 is a stainless steel tank, and a stirrer is installed in the tank.

preferably, the hydraulic station system 9 is connected to the hydraulic station 10 through a hydraulic oil pipe, the hydraulic station 10 is connected to a manual valve through a hydraulic oil pipe, and the manual valve is connected to a fuel tank.

The hydraulic station 10 is provided with a hydraulic motor, a hydraulic fan motor, a pressure gauge, a temperature sensor 2, a pressure sensor and a liquid level sensor.

preferably, the solid phase collection tank is a 14-position stainless steel barrel, an electric heating device is arranged outside the barrel, and a heat insulation material is wrapped on the barrel; the bucket is internally provided with a stirrer, wherein the blade of the stirrer is in a scraper blade shape.

the method for the model selection experiment circulating system of the horizontal decanter centrifuge provided by the embodiment of the invention specifically comprises the following processes:

1. Directly separating the obtained solid phase and the liquid phase, directly conveying the collected separation liquid to a solid phase collecting tank 14, mixing at high speed and homogenizing, and then reusing. The separated liquid flows into the liquid phase collecting tank 6 automatically at a high position, if the experiment needs to be repeated, the separated liquid is conveyed to the solid phase collector by pumping for mixing and stirring, if the material is subjected to the flocculation experiment in the earlier stage, the solid phase collecting tank 14 needs to be heated to 60-80 ℃ to decompose the flocculating agent, and then the separated liquid is conveyed to the cooling tank 12 for cooling for standby.

2. After the material added with the organic polymeric flocculant is separated, the collected separation liquid is directly conveyed to a solid phase collection tank 14, the mixed liquid is stirred and homogenized in the solid phase collection tank 14 and heated to 60-80 ℃ (so that the flocculant in the liquid phase is degraded), and then the mixed liquid is conveyed to a cooling tank 12 for repeated use after being cooled and homogenized.

Compared with the traditional processing mode, the method has the advantages that:

(1) The operation is simple and convenient, and can be completed by only one person, so that the labor cost is saved;

(2) If a comparison experiment is needed, no additional materials are needed to be provided by a customer, so that the materials are recycled, the transportation cost is reduced, and the secondary pollution is also reduced;

(3) the device has an online detection function, and does not need operators to detect one by one, so that the error of experimental data is reduced;

(4) the flocculant adding device is arranged, manual preparation is not needed, and the flocculant adding device is more accurate and convenient;

(5) The heating and cooling functions can be realized, the variety of the processed materials is increased, and the adaptability of the experimental system is expanded;

(6) the treated materials are easy to collect, secondary pollution is reduced, and the solid-liquid separation effect is achieved; is particularly suitable for recovering materials and increasing the recovery rate of the materials.

the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.