NL2024995A - Jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system - Google Patents

Jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system Download PDF

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Publication number
NL2024995A
NL2024995A NL2024995A NL2024995A NL2024995A NL 2024995 A NL2024995 A NL 2024995A NL 2024995 A NL2024995 A NL 2024995A NL 2024995 A NL2024995 A NL 2024995A NL 2024995 A NL2024995 A NL 2024995A
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agent
stirring
mixing
jet
liquid level
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NL2024995A
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Dutch (nl)
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NL2024995B1 (en
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Zhou Wei
Zhu Jinbo
Min Fanfei
Zhang Yong
Feng Anan
Cai Chuanchuan
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Univ Anhui Sci & Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/10—Dissolving using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71745—Feed mechanisms characterised by the means for feeding the components to the mixer using pneumatic pressure, overpressure, gas or air pressure in a closed receptacle or circuit system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71815—Feed mechanisms characterised by the means for feeding the components to the mixer using vibrations, e.g. standing waves or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • B01F35/8311—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows with means for controlling the motor driving the pumps or the other dispensing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/894—Measuring receptacles therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/305—Treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/48—Mixing water in water-taps with other ingredients, e.g. air, detergents or disinfectants

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)

Abstract

The present invention relates to the field of flocculating agent addition in slime water treatment technologies, in particular to a jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system. The present invention at least includes an annulus jet device and further includes an agent storage system, an agent quantitative delivery and adding system, a jet-stirring coupled dispersing system and a PLC intelligent control system. The jet-stirring coupled dispersing system is a core subsystem of the present invention and includes the annulus jet device and a stirring dispersing device. The annulus jet device is composed of a screw pump, a pressure water pipe, an ejection air pipe, a mixing chamber, a spraying nozzle and a pressure stabilizing throat pipe. The stirring dispersing device includes a stirring mechanism and a mixing stirring barrel. The stirring mechanism is composed of a stator, a sleeve, a shaft and a double-layer impeller. A false bottom is designed at a bottom of the mixing stirring barrel. A plurality of baffles are arranged on a barrel wall. A liquid level measuring device is arranged on an upper part of the barrel wall. The system fully considers addition and dissolution characteristics of a flocculating agent, and thus simultaneous precise and quantitative addition of the powdery agent and a solution can be achieved.

Description

JET-STIRRING COUPLED POWDERY FLOCCULATING AGENT QUANTITATIVE DISPERSING MIXING SYSTEM
BACKGROUND Technical Field The present invention relates to the field of flocculating agent addition in slime water treatment technologies, in particular to a jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system. Related Art Most of coal preparation plants in China adopt wet coal preparation. Slime water treatment is an important link in the wet coal preparation technological process. From economic and environmental considerations, deep clarification of slime water and washing water closed cycle are required. The coal preparation plants usually use a coagulation method to treat the slime water, and the so-called coagulation method is to add a flocculating agent into a slime water system to enable particles in the slime water system to settle through gravity after agglomeration. An organic polymer flocculating agent, such as polyacrylamide, is usually used as a coagulant. Due to the characteristics of large molecular weight, long side chain and the like of the organic polymer flocculating agent, the defects of long dissolution time, insufficient dissolution and the like exist. If the agent is added in water and dispersing mixing is uneven, the phenomena that the agent is not dissolved thoroughly within the set time, the concentration of an agent aqueous solution is low, and the agent is wasted are caused, and in a serious condition, the treatment effect on the slime water is further directly affected. A traditional flocculating agent preparation method for the coal preparation plants is that a powdery flocculating agent is directly added into a mixing stirring barrel manually to be directly stirred, but uneven feeding and insufficient mixing frequently cause the problems of agent agglomeration, insufficient dissolution and the like and special post drivers need to be set to observe the liquid level and add the powdery flocculating agent on time, certain hysteresis exists, and the agent addition amount has artificial deviation. Although the utility model 201721157662.5 proposes that a screw feeder is adopted for feeding to solve the problem of uneven feeding and the invention patent 201410260122. 4 proposes that an agent dispersion sieve is adopted to achieve the purpose of even dispersion of the agent in a feeding process, the problems of insufficient mixing, agglomeration in a stirring process, arch forming and caking in a storage silo and the like cannot be solved, and therefore, a powdery flocculating agent quantitative dispersing mixing device or system is required to solve the problem of insufficient agent dissolution caused by insufficient mixing of the agent and “swelling” agglomeration in a dissolution process. (Swelling refers to the phenomenon that several particles of the powdery particle polymer flocculating agent gather together and then fall into the water, after surface layers of certain particle swells, other particles are wrapped with the swollen surface layers of certain particle, and consequently the particles cannot be separated, resulting in incomplete dissolution.)
SUMMARY The present invention aims to overcome deficiencies in the above-mentioned prior art, and design a jet-stirring coupled agent quantitative dispersing mixing system. The core subsystem of the jet-stirring coupled agent quantitative dispersing mixing system is a jet-stirring coupled dispersing system, including an annulus jet device and a stirring dispersing device. Other subsystems further include an agent storage system, an agent quantitative delivery and adding system and a PLC intelligent control system. A quantitative powdery agent is dispersed and mixed in liquid water in unit volume, and it is ensured that the powdery agent is added according to the required amount and evenly dispersed and quickly dissolved in an aqueous solution. The problems of an agent addition amount deviation, “swelling” agglomeration of the powdery flocculating agent, difficult dissolution and the like are overcome. The present invention integrates storage, quantitative screw feeding, automatic blowing agent addition and jet-stirring coupled dispersing mixing, and has the advantages of reasonable device structure, high automatic degree and the like. The deviation caused by human factors can be completely eradicated in processes of storage, delivery and addition. Meanwhile, it is ensured that the powdery agent is efficiently dispersed in the aqueous solution, and a good flocculating agent condition is provided for subsequent slime water treatment work.
In order to achieve the above-mentioned purposes, the present invention adopts following technical solutions:
a jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system at least includes an annulus jet device, and further includes following components:
a jet-stirring coupled dispersing system, wherein the dispersing system includes the annulus jet device and a stirring dispersing device; the annulus jet device mainly includes a feeding screw pump, a pressure water pipe, an ejection air pipe, a mixing chamber, a spraying nozzle and a pressure stabilizing throat pipe; the feeding screw pump delivers liquid water needing to be supplemented into the annulus jet device through the pressure water pipe, the liquid water is sprayed out by the spraying nozzle at a high speed, a negative pressure is formed in the mixing chamber, an external fluid is sucked in from the ejection air pipe, the ejection air pipe is connected with a pneumatic delivery pipeline of an agent quantitative delivery and adding system, a powdery agent enters the mixing chamber of the annulus jet device in a dispersed state under the combined effect of blowing force of the pneumatic delivery pipeline and suction force of the mixing chamber, under the effects of jet impact and cutting of the fluid ejected by the spraying nozzle, the agent is dispersed preliminarily in water, and an agent aqueous solution enters a hollow channel between a sleeve and a shaft of the stirring dispersing device through the pressure stabilizing throat pipe; the stirring dispersing device includes a stirring mechanism and a mixing stirring barrel, the stirring mechanism is composed of a stator, the sleeve, the shaft and a double-layer impeller, wherein an upper part of the stator is provided with a circulating hole, part of the agent aqueous solution in the mixing stirring barrel enters the impeller again from the circulating hole and is stirred and dispersed again, a lower part of the stator is provided with a guiding sheet capable of stabilizing a motion direction of the fluid, the channel adopting hollow design is arranged between the sleeve and the shatt for discharged materials of the annulus jet device to enter the stirring dispersing device, the agent aqueous solution enters the double-layer impeller in a spiral down-flow mode in the hollow channel, the shaft drives the double-layer impeller to rotate, and thus the aqueous solution is dispersed, mixed and dissolved continuously in the mixing stirring barrel; a false bottom is designed at a bottom of the mixing stirring barrel to prevent direct “material mixing” of the agent aqueous solution from a discharging outlet, a plurality of baffles are arranged on a barrel wall of the mixing stirring barrel to eliminate “a cylindrical rotation region” in the barrel so as to improve stirring performance of a stirrer, and a liquid level measuring device is further designed on an upper part of the barrel wall; and the liquid level measuring device mainly includes an ultrasonic probe and a floating ball, the floating ball is mounted in a floating ball channel in outer edges of the baffles and moves up and down vertically along with a height of the liquid level to eliminate the influence of liquid level fluctuation caused by the stirring effect on a measuring result, the liquid level measuring device transmits measured liquid level data to a PLC intelligent control system, the PLC intelligent control system starts the feeding screw pump of the annulus jet device if finding that the liquid level is lower than a lower limit of a set value through data analysis, when the liquid level is higher than an upper limit of the set value, work of the feeding screw pump of the annulus jet device is stopped, in the process, the stirring mechanism continues working, and finally, the agent is efficiently dissolved, the agent quantitative delivery and adding system, wherein the ejection air pipe of the annulus jet device is connected with the pneumatic delivery pipeline of the agent quantitative delivery and adding system; the agent quantitative delivery and adding system is mainly composed of a screw feeder, an air blower and the pneumatic delivery pipeline; the screw feeder includes a screw feeding chute, a screw pushing rod and a variable-frequency drive motor, the screw pushing rod is connected with the variable-frequency drive motor, a rotating speed of the screw pushing rod is adjustable, thus the purpose of quantitative control over the addition amount of the powdery flocculating agent is achieved, and a discharging outlet of the screw feeder is connected with the pneumatic delivery pipeline; and the pneumatic delivery pipeline is connected with a power source device, namely the air blower, and the air blower conducts air blowing work to blow the powdery flocculating agent quantitatively fed by the screw feeder into the ejection air pipe of the annulus jet device; and the PLC intelligent control system, wherein the liquid level measuring device, the feeding screw pump of the annulus jet device, the variable-frequency drive motor of the screw feeder and the air blower are intelligently associated through the PLC intelligent control system, and are simultaneously started or simultaneously stop actions.
The present invention has the following beneficial effects: 1), the jet-stirring coupled dispersing system, the agent storage system, the agent quantitative delivery and adding system and the PLC intelligent control system of the 5 present invention are jointly matched to constitute the jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system. An automatic degree of an addition method adapting to the device is greatly improved. Input of manpower and material resources is greatly reduced. Meanwhile, the agent addition amount deviation caused by the human factors is avoided. The agent is dispersed and mixed more evenly in the aqueous solution. Agent dissolution is higher in speed and safer, and thus agent consumption is reduced.
2), a top of a storage silo of the agent storage system of the present invention is designed to be an open type feeding inlet, so that pouring of powdery materials and observation of a material silo level situation are facilitated, and workers can participate in other post patrol as long as they fully fill the storage silo. Falling in the storage silo is automatically controlled. Electromagnetic vibration exciters are arranged on two sides of an inverted cone on a lower part of the storage silo, so that the powdery flocculating agent can be evenly vibrated down, and occurrence of an arch forming phenomenon in the silo is prevented. A discharging outlet in a bottom of the storage silo is connected with a star discharger, so that it can be ensured that the powdery flocculating agent is discharged evenly, and the phenomena of blockage and agglomeration in a discharging process are prevented.
3), the agent quantitative delivery and adding system of the present invention is mainly composed of the screw feeder, the air blower and the pneumatic delivery pipeline. The screw feeder includes the screw feeding chute, the screw pushing rod and the variable-frequency drive motor. The screw pushing rod is connected with the variable-frequency drive motor. A cross section area S of the screw feeding chute is definite. The agent amount M stored in unit area is definite. The feeding amount in unit time of the screw feeder depends on a rotating speed of the screw pushing rod. The agent feeding amount Q in unit time meets a formula of Q=S » M * u. By controlling the rotating speed of the screw pushing rod, the purpose of quantitative control over the addition amount of the powdery flocculating agent is achieved. The discharging outlet of the screw feeder is connected with the pneumatic delivery pipeline. The power source device for pneumatic delivery is the air blower. The air blower blows the powdery flocculating agent delivered by the screw feeder into the annulus jet device in an agent dispersing device through air blowing.
4), the jet-stirring coupled dispersing system of the present invention includes the annulus jet device and the stirring dispersing device. The annulus jet device mainly includes the feeding screw pump, the pressure water pipe, the ejection air pipe, the mixing chamber, the spraying nozzle and the pressure stabilizing throat pipe. The liquid water enters the annulus jet device through the pressure water pipe under the effect of the screw pump. The negative pressure is formed in the mixing chamber, and the powdery flocculating agent in the ejection air pipe is sucked. The powdery flocculating agent enters the annulus jet device under the combined effect of blowing force of the air blower and suction force of the mixing chamber. The powdery flocculating agent is evenly dispersed in the liquid water under impact and cutting of the jet effect, is mixed with the liquid water and then enters the hollow channel between the sleeve and the shaft of the stirring dispersing device through the pressure stabilizing throat pipe. The stirring dispersing device ensures that the agent mixed aqueous solution makes continuous turbulent motion in the mixing stirring barrel. The stirring dispersing device mainly includes the mixing stirring barrel and the stirring mechanism. The stirring mechanism is composed of the stator, the sleeve, the shaft and the double-layer impeller. The stator can maintain the liquid level stable. The upper part of the stator is provided with the circulating hole. Part of the agent aqueous solution in the mixing stirring barrel enters the impeller again from the circulating hole and is stirred and dispersed again.
The lower part of the stator is provided with the guiding sheet capable of stabilizing the motion direction of the fluid. The channel adopting hollow design is arranged between the sleeve and the shaft for the discharged materials of the annulus jet device to enter the channel of the stirring dispersing device. The agent aqueous solution enters the double-layer impeller in the spiral down-flow mode in the hollow channel. The shaft drives the double-layer impeller to rotate. The impeller is matched with the stator (the guiding sheet) and the false bottom to enable the liquid to form W-shaped flowing. The turbulence level of the liquid is enhanced, and thus the aqueous solution is continuously dispersed, mixed and dissolved in the mixing stirring barrel.
The false bottom is designed at the bottom of the mixing stirring barrel to prevent direct “material mixing” of the agent aqueous solution from the discharging outlet.
The plurality of baftles are arranged on the barrel wall of the mixing stirring barrel to eliminate “the cylindrical rotation region” in the barrel so as to improve the stirring performance of the stirrer.
The liquid level measuring device is further designed on the upper part of the barrel wall.
The liquid level measuring device mainly includes the ultrasonic probe and the floating ball.
The floating ball is mounted in the floating ball channel in the outer edges of the baffles and moves up and down vertically along with the height of the liquid level to eliminate the influence of liquid level fluctuation caused by the stirring effect on the measuring result.
The liquid level measuring device transmits the measured liquid level data to the PLC intelligent control system.
The PLC intelligent control system starts the feeding screw pump of the annulus jet device if finding that the liquid level is lower than the lower limit of the set value through data analysis, and when the liquid level is higher than the upper limit of the set value, the work of the feeding screw pump of the annulus jet device is stopped.
In the process, the stirring mechanism continues working,
and finally, the agent is efficiently dissolved. 5), the PLC intelligent control system of the present invention can link the electromagnetic vibration exciters, the star discharger, the screw feeder, the air blower and the annulus jet device for work, and precise and quantitative agent feeding and even dispersing of the agent are achieved.
The liquid level measuring device transmits the liquid level data of the mixing stirring barrel to the PLC intelligent control system.
An intelligent control device starts the feeding screw pump of the annulus jet device to supplement the liquid water to the mixing stirring barrel if finding that the liquid level is lower than the lower limit of the set value through data analysis.
The electromagnetic vibration exciters, the star discharger, the screw feeder and the air blower are simultaneously started to blow the quantitative powdery flocculating agent corresponding to the flow of the liquid water into the ejection pipe of the annulus jet device.
The powdery flocculating agent is evenly dispersed in the liquid water.
When the liquid level is higher than the upper limit of the set value, work of the electromagnetic vibration exciters, the star discharger, the screw feeder, the air blower and the feeding screw pump of the annulus jet device is simultaneously stopped.
In the process, the stirring impeller continues working, and finally, the agent is efficiently dissolved. 6) the feeding screw pump of the annulus jet device is a displacement pump, and the flow of the fluid delivered in unit time is stable. The amount of the powdery agent delivered by the screw feeder is related to the rotating speed of the screw pushing rod. Quantitative control can also be achieved. Through cooperation of the feeding screw pump of the annulus jet device and the screw feeder, precise quantitative addition of the powdery agent in the water is achieved.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic front diagram of the present invention. Fig. 2 is a logical relationship diagram of all systems of the present invention. Fig. 3 is a schematic front diagram of an annulus jet device in a structure in Fig. 1. Corresponding relations between all structures shown in the figures and names of components of the present invention are as follows: A-agent storage system; B-agent quantitative delivery and adding system; C-jet-stirring coupled dispersing system; D-PLC intelligent control system; l-silo cover; 2-storage silo; 3-electromagnetic vibration exciter; 4-star discharger; S-variable-frequency drive motor; 6-screw feeder; 6A-screw pushing rod; 6B-screw feeding chute; 7-air blower; 8-pneumatic delivery pipeline; 9-screw pump; 10-pressure water pipe; ll-annulus jet device; 12-belt pulley; 13-stirring dispersing device; 14-stirring mechanism; 15-sleeve; 16-stator; 16A-guiding sheet, 16B-circulating hole; 17-hollow channel; 18-shaft; 19-double-layer impeller; 20-agent sucking chamber; 21-false bottom; 22-discharging outlet; 23-liquid level measuring device; 23A-ultrasonic probe; 23B-floating ball; 23C-floating ball channel;
24-mixing stirring barrel; 25-baffle; 26-pressure water pipe; 27-ejection air pipe; 28-mixing chamber; 29-spraying nozzle; and 30-pressure stabilizing throat pipe.
DETAILED DESCRIPTION The following clearly and completely describes the technical solutions in the present invention with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative effects shall fall within the protection scope of the present invention. Embodiment. Application of the present invention to a powdery flocculating agent addition system in a slime water treatment technology As shown in Figs. 1-3, a jet-stirring coupled powdery flocculating agent quantitative dispersing mixing system includes following components: an agent storage system (A): the storage system includes a storage silo (2), electromagnetic vibration exciters (3), and a star discharger (4) which are sequentially connected, an upper part of the storage silo is in a barrel shape, a lower part of the storage silo is in an inverted cone shape, a top of the storage silo is provided with an open type feeding inlet, the feeding inlet is provided with a silo cover (1) to prevent water absorption and agglomeration of a powdery flocculating agent, a bottom of the storage silo is provided with a discharging outlet, the electromagnetic vibration exciters (3) are arranged on two sides of an inverted cone on the lower part of the storage silo (2), the electromagnetic vibration exciters (3) can evenly vibrate the powdery flocculating agent of the storage silo (2) down to prevent occurrence of an arch forming phenomenon in the silo, materials that are vibrated down are discharged by the discharging outlet in the bottom of the storage silo, the discharging outlet in the bottom of the storage silo is connected with the star discharger (4), it can be ensured that the powdery flocculating agent is discharged evenly, the phenomena of blockage and agglomeration in a discharging process are prevented, and an outlet of the star discharger is externally connected with a screw feeder (6), an agent quantitative delivery and adding system (B): the system is mainly composed of the screw feeder (6), an air blower (7) and a pneumatic delivery pipeline (8); the screw feeder includes a screw feeding chute (6B), a screw pushing rod (6A) and a variable-frequency drive motor (5), the screw pushing rod (6A) is connected with the variable-frequency drive motor (5), the star discharger (4) discharges the powdery flocculating agent into the screw feeding chute (6B), the powdery flocculating agent moves towards a discharging outlet of the screw feeder under the pushing effect of the screw pushing rod (6A), the rotating speed of the screw pushing rod (6A) is adjustable, and thus the purpose of quantitative control over the addition amount of the powdery flocculating agent is achieved; the discharging outlet of the screw feeder is connected with the pneumatic delivery pipeline (8), the pneumatic delivery pipeline (8) is connected with a power source device, namely the air blower (7), for pneumatic delivery and an annulus jet device (11) respectively, and the powdery flocculating agent quantitatively fed by the screw feeder (6) is pneumatically delivered to the annulus jet device (11) through air blowing work of the air blower (7);
a jet-stirring coupled dispersing system (C): the system is mainly composed of the annulus jet device (11), a stirring dispersing device (13) and a liquid level measuring device (23); the annulus jet device mainly includes a pressure water pipe (26), an ejection air pipe (27), a mixing chamber (28), a spraying nozzle (29) and a pressure stabilizing throat pipe (30); the stirring dispersing device mainly includes a stirring mechanism (14) and a mixing stirring barrel (24), the stirring mechanism is composed of a stator (16), a sleeve (15), a shaft (18) and a double-layer impeller(19), an upper part of the stator is provided with a circulating hole (16B), the insufficiently-dissolved agent enters a stirring area of the double-layer impeller (19) again through the circulating hole and is stirred and dispersed again, a lower part of the stator is provided with a guiding sheet (16A) capable of stabilizing a motion direction of a fluid, hollow design is adopted between the sleeve (15) and the shaft (18), an agent solution in the hollow channel (17) enters an agent sucking chamber (20) above the double-layer impeller (19) in a spiral down-flow mode, the shaft (18) drives the double-layer impeller (19) to rotate and thus the agent is continuously dispersed and mixed in an aqueous solution, and finally the agent is quickly and efficiently dissolved; a false bottom (21) is designed at a bottom of the mixing stirring barrel to prevent direct “material mixing” of the aqueous solution from a discharging outlet (22), a plurality of baffles (25) are arranged on a barrel wall of the mixing stirring barrel to eliminate “a cylindrical rotation region” in the barrel so as to improve stirring performance of the stirring mechanism, and the liquid level measuring device (23) 1s further designed on an upper part of the barrel wall; and the liquid level measuring device (23) mainly includes an ultrasonic probe (23A) and a floating ball (23B), the floating ball (23B) is mounted in a floating ball channel (23C) in outer edges of the baffles (25) and moves up and down vertically along with a height of the liquid level to eliminate the influence of liquid level fluctuation caused by the stirring effect on a measuring result, the liquid level measuring device (23) transmits measured liquid level data to a PLC intelligent control system (D), the PLC intelligent control system starts the feeding screw pump (9) of the annulus jet device (11) if finding that the liquid level is lower than a lower limit of a set value through data analysis, when the liquid level is higher than an upper limit of the set value, work of the feeding screw pump (9) of the annulus jet device (11) is stopped, in the process, the stirring mechanism (14) continues working, and finally, the agent 1s efficiently dissolved; and the PLC intelligent control system (D): the liquid level measuring device (23) transmits the liquid level data of the mixing stirring barrel to the PLC intelligent control system, an intelligent control device simultaneously starts the electromagnetic vibration exciters (3), the star discharger (4), the screw feeder (6), the air blower (7) and the feeding screw pump (9) of the annulus jet device (11) if finding that the liquid level is lower than the lower limit of the set value through data analysis, when the liquid level is higher than the upper limit of the set value, work of the electromagnetic vibration exciters (3), the star discharger (4), the screw feeder (6), the air blower(7) and the feeding screw pump (9) of the annulus jet device (11) is simultaneously stopped.
To sum up, the jet-stirring coupled powdery flocculating agent quantitative automatic adding device of the present invention fully considers addition and dissolution characteristics of the slime water flocculating agent, and thus simultaneous precise and quantitative addition of liquid water and the powdery agent is achieved. The advantages of reasonable device structure, high automatic degree and the like are achieved. A deviation caused by human factors can be completely eradicated in the processes of storage, delivery and addition. Meanwhile, it is ensured that the powdery agent is efficiently dispersed and dissolved in the aqueous solution. A good flocculating agent condition is provided for subsequent slime water treatment work, and the agent consumption cost is also reduced extremely obviously.

Claims (3)

CONCLUSIESCONCLUSIONS 1. Een jet-roerend gekoppeld poederachtig uitvlokkingsmiddel kwantitatief dispergeermengsysteem, omvattende ten minste een ringvormige straalinrichting (11), en verder omvattende de volgende componenten: een middelopslagsysteem (A), een kwantitatief middeltransport- en toevoegsysteem (B), een jet-roerend gekoppeld dispersiesysteem (C) en PLC intelligent besturingssysteem (D), waarbij het jet-roerende gekoppelde dispersiesysteem (C) de ringvormige straalinrichting (11) en een roer- dispergeerinrichting (13) omvat, waarbij de ringvormige straalinrichting (11) in hoofdzaak een voedingsschroefpomp (9), een drukwaterpijp (10), een uitstootgaspijp (27), een mengkamer (28), een mondstuk (29) en een drukstabiliserende slang (30) omvat, waarbij de voedingsschroefpomp (9) ingericht is voor toevoer van vloeibaar water aan de ringvormige straalinrichting (11) middels de drukwaterpijp (10) en ingericht voor uitwerpen van vloeibaar water met hoge snelheid door het mondstuk (29), voor vorming in de mengkamer (28) van een negatieve druk en aanzuiging van externe fluidum uit de uitstootluchtpijp (27), en waarbij de uitstootluchtpijp (27) 1s verbonden met een pneumatische transportpijp (8) van het kwantitatieve middeltransport- en toevoegsysteem (B), en ingericht zodat een poedervormig middel de mengkamer (28) van de ringvormige straalinrichting (11) binnenkomt in een gedispergeerde toestand onder het gecombineerde effect van de blaaskracht van de pneumatische transportpijp (8) en de zuigkracht van de mengkamer, en onder de effecten van jet-inslag en het snijden van de vloeistof die uit het mondstuk (29) wordt uitgestoten, waarbij het middel voorlopig gedispergeerd wordt in water en een waterige oplossing van het middel in een hol kanaal (17) tussen een huls (15) en een schacht (18) van de roer-dispersie-inrichting (13) binnenkomt via de drukstabiliserende slang (30), waarbij de roer- en dispergeerinrichting (13) een roerwerk (14) en een mengroervat (24) omvat, waarbij het roerwerk (14) een stator (16), een huls (15), een as (18) en een dubbellaagse roerder (19) omvat, waarin een circulatiegat (16B) is voorzien bij een bovendeel van de stator (16), ingericht zodat een deel van de waterige oplossing van het middel opnieuw in het menggebied van de dubbellaagse roerder (19) van het mengroervat (24) komt vanuit het circulatiegat (16B), en is een geleidestuk (16A) voorzien bij een ondereind van de stator (16), voor het stabiliseren van een bewegingsrichting van de vloeistof, waarbij het kanaal verschaffende hol ontwerp is gerangschikt tussen de huls (15) en de as (18), voor gemengde materialen in de ringvormige jet-inrichting (11) om de roer- en dispergeerinrichting (13) binnen te gaan, waarbij de waterige oplossing van het middel de dubbellaagse roerder (19) ingaat in een neerwaartse spiraalvormige stroming in het holle kanaal (17), en de as (18) ingericht is om de dubbellaagse waaier (19) aan te drijft om te roteren, zodat de waterige oplossing continu wordt gedispergeerd, gemengd en opgelost in het meng- en roervat (24), waarbij verder de bodem van het meng- en roervat (24) is voorzien van een valse bodem (21) ingericht om te voorkomen dat de waterige oplossing van het middel rechtstreeks mengt bij een uitlaat (22), schotten (25) voorzien op een vatwand van het meng- en roervat (24) om een "cilindrische roterende gebied" in het vat te elimineren, en een vloeistofniveau-meetinrichting (23) voorzien bij een boven de vatwand, de vloeistofniveau-meetinrichting (23) in hoofdzaak omvattende een ultrasone sonde (23A) en een zwevende bal (23B), waarbij de zwevende bal (23B) is geïnstalleerd in een zwevend kogelkanaal (23C) op buitenranden van de schotten, en de zwevende bal verticaal op en neer beweegt met het vloeistofniveau en de vloeistofniveau-meetinrichting de gemeten vloeistofniveau-gegevens naar het PLC intelligente besturingssysteem (D) verzendt, waarbij wanneer het PLC intelligente besturingssysteem (D) middels gegevensanalyse vaststelt dat het vloeistofniveau lager is dan de ondergrens van de ingestelde waarde, de voedingsschroefpomp (9) van de ringvormige jet-inrichting (11) inschakelt en wanneer het vloeistofniveau hoger is dan de bovengrens van de ingestelde waarde, wordt de voedingsschroefpomp (9) van de ringvormige jet-inrichting (11) uitgeschakeld, waarbij tijdens dit proces het roermechanisme (14) blijft werken en uiteindelijk een efficiënte oplossing van het middel bereikt wordt.A jet agitated coupled powdery flocculant quantitative dispersion mixing system comprising at least one annular jet device (11), and further comprising the following components: an agent storage system (A), a quantitative agent transport and addition system (B), a jet agitated coupled dispersion system (C) and PLC intelligent control system (D), wherein the jet stirring coupled dispersion system (C) comprises the annular jet device (11) and an agitated dispersion device (13), the annular jet device (11) essentially a screw feed pump ( 9), comprising a pressurized water pipe (10), an ejection gas pipe (27), a mixing chamber (28), a nozzle (29) and a pressure stabilizing hose (30), the screw feed pump (9) being adapted to supply liquid water to the annular jet device (11) through the pressurized water pipe (10) and adapted to eject liquid water at high velocity through the nozzle (29), for formation in the m engaging chamber (28) of a negative pressure and suction of external fluid from the exhaust air pipe (27), and wherein the exhaust air pipe (27) is connected to a pneumatic transport pipe (8) of the quantitative medium transport and addition system (B), and arranged so that a powdery agent enters the mixing chamber (28) of the annular jet (11) in a dispersed state under the combined effect of the blowing force of the pneumatic conveying pipe (8) and the suction force of the mixing chamber, and under the effects of jet impact and cutting the liquid expelled from the nozzle (29), the agent being provisionally dispersed in water and an aqueous solution of the agent in a hollow channel (17) between a sleeve (15) and a shaft (18) of the agitator-dispersion device (13) enters through the pressure stabilizing hose (30), the agitator and dispersion device (13) comprising an agitator (14) and a mixing agitator vessel (24), the agitator ( 14) comprises a stator (16), a sleeve (15), a shaft (18) and a double-layer stirrer (19), in which a circulation hole (16B) is provided at an upper part of the stator (16), so that a part of the aqueous solution of the agent again in the mixing area of the double-layer stirrer (19) of the mixing vessel (24) comes from the circulation hole (16B), and a guide piece (16A) is provided at a lower end of the stator (16), for stabilizing a direction of movement of the liquid, the channel providing hollow design being arranged between the sleeve (15) and the shaft (18), for mixed materials in the annular jet device (11) around the stirring and dispersing device ( 13), wherein the aqueous solution of the agent enters the double layer stirrer (19) in a downward spiral flow in the hollow channel (17), and the shaft (18) is arranged to act on the double layer impeller (19). floats to rotate so that the aqueous solution is continuously dispersed mixed and dissolved in the mixing and stirring vessel (24), further the bottom of the mixing and stirring vessel (24) is provided with a false bottom (21) arranged to prevent the aqueous solution of the agent from mixing directly at an outlet (22), baffles (25) provided on a vessel wall of the mixing and stirring vessel (24) to eliminate a "cylindrical rotating region" in the vessel, and a liquid level measuring device (23) provided at an above the vessel wall, the liquid level measuring device (23) mainly comprising an ultrasonic probe (23A) and a floating ball (23B), the floating ball (23B) being installed in a floating ball channel (23C) on outer edges of the baffles, and the floating ball vertically moves up and down with the liquid level and the liquid level measuring device sends the measured liquid level data to the PLC intelligent control system (D), where when the PLC intelligent control system (D) determines through data analysis that the liquid level is lower than the lower limit of the set value, turn on the screw feed pump (9) of the annular jet device (11), and when the liquid level is higher than the upper limit of the set value, the screw feed pump (9) of the annular jet device (11), whereby during this process the agitation mechanism (14) continues to operate and ultimately an efficient dissolution of the agent is achieved. 2. Het jetroerend gekoppeld poederachtig uitvlokkingsmiddel kwantitatief dispersie mengsysteem volgens conclusie 1, met het kenmerk, dat het kwantitatieve middeltransport- en toevoegsysteem (B) in hoofdzaak omvat een schroeftoevoer (6), een blazer (7) en pneumatische transportpijp (8), waarbij de schroeftoevoerder (6) een schroeftoevoergoot (6B), een schroefdrukker (6A) en een aandrijfmotor met variabele frequentie (5) omvat, waarbij de schroefdrukker (6A) is verbonden met de aandrijfmotor met variabele frequentie (5) en de rotatiesnelheid van de schroefdrukker (6A) instelbaar is, voor kwantitatief regelen van de toevoegingshoeveelheid van het poederachtige uitvlokmedicijn, en een uitlaat van de schroeftoevoer (6) verbonden is met de pneumatische transportbuis (8) en de pneumatische transportpijp (8) verbonden is met een krachtbron, te wetende blazer (7), en de blazer (7) luchtblaas arbeid uitoefent om het poederachtige uitvlokmiddel kwantitatief toe te voeren door de schroeftoevoer in de uitstootluchtpijp (27) van de ringvormige straalinrichting (11).The moving coupled powdery flocculant quantitative dispersion mixing system according to claim 1, characterized in that the quantitative agent conveying and adding system (B) essentially comprises a screw feeder (6), a blower (7) and pneumatic conveying pipe (8), wherein the screw feeder (6) comprises a screw feed chute (6B), a screw pusher (6A) and a variable frequency drive motor (5), the screw pusher (6A) being connected to the variable frequency drive motor (5) and the rotational speed of the screw pusher (6A) is adjustable, for quantitatively controlling the addition amount of the powdery flocculation drug, and an outlet of the screw feeder (6) is connected to the pneumatic conveying tube (8) and the pneumatic conveying pipe (8) is connected to a power source, knowing blower (7), and the blower (7) performs air blowing work to supply the powdery flocculant quantitatively through the screw feed in the exhaust air pipe (27) of the annular jet device (11). 3. Het jet-roerend gekoppeld poederachtig uitvlokkingsmedicijn kwantitatief dispersie mengsysteem volgens conclusie 1, met het kenmerk, dat de vloeistofniveau- meetinrichting (23), de voedingsschroefpomp (9) van de ringvormige straalinrichting (11), de aandrijfmotor met variabele frequentie (5) van de schroefaanvoer (6) en de blazer (7) intelligent verbonden zijn door het PLC intelligente besturingssysteem (D), en tegelijkertijd worden gestart of gestopt.The jet agitatingly coupled powdery flocculation drug quantitative dispersion mixing system according to claim 1, characterized in that the liquid level measuring device (23), the feed screw pump (9) of the annular jet device (11), the variable frequency drive motor (5) of the screw feeder (6) and the blower (7) are intelligently connected by the PLC intelligent control system (D), and start or stop at the same time.
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