CN109277016B - Control system of subway engineering construction wastewater treatment device - Google Patents

Control system of subway engineering construction wastewater treatment device Download PDF

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Publication number
CN109277016B
CN109277016B CN201811173354.0A CN201811173354A CN109277016B CN 109277016 B CN109277016 B CN 109277016B CN 201811173354 A CN201811173354 A CN 201811173354A CN 109277016 B CN109277016 B CN 109277016B
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homogenizing
funnel
tank
mixing
support
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CN109277016A (en
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阮少伟
姜代红
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Xuzhou University of Technology
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Xuzhou University of 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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/73—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
    • B01F27/731—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs with two or more parallel shafts provided with perpendicularly mounted discs, e.g. lens shaped, one against the other on each shaft and in circumferential contact with the discs on the other shafts, e.g. for cleaning
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • 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
    • C02F2001/007—Processes including a sedimentation step

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

Abstract

A control system of a subway engineering construction wastewater treatment device is characterized in that the bottom of a mixing tank is connected with a pretreatment tank through a liquid discharge pipeline; the support steel frame is driven by a motor to realize the lifting adjustment of the mixing tank; a jacket of a homogeneous mixing cabin body of the mixing tank is filled with heat transfer medium; the side wall of a separating filter screen funnel in the homogenizing and mixing bin body is provided with an opening, the center of a bottom plate of the separating filter screen funnel is rotatably connected with a funnel rotating shaft through a bearing bottom support, and the funnel rotating shaft is fixedly connected with an upper cross beam; the rotating shaft of the funnel is connected with two funnel stirring blades in the separating filter screen funnel; the liquid inlet end of the liquid feeding pipeline is connected with an external liquid feeding source; the bearing bottom support is provided with a cooling cavity and a cooling liquid supply pipeline; the homogenizing system comprises a pair of homogenizing wave wheel sets sleeved on a pair of homogenizing middle shafts; the control box is connected with the support driving motor, the homogeneous driving mechanism and the waterproof motor respectively, and the core of the control box adopts a THX201 controller. The device has simple structure, high mixing efficiency and good effect.

Description

Control system of subway engineering construction wastewater treatment device
Technical Field
The invention belongs to the field of environment-friendly equipment, and particularly relates to a control system of a subway engineering construction wastewater treatment device.
Background
In recent years, the economy of China is rapidly developed, the urbanization process is increasingly accelerated, however, the underground engineering wastewater treatment is far behind the social requirements in the aspects of construction, operation, management and the like, and becomes an important factor for restricting the urbanization development of China. The underground engineering wastewater treatment mainly aims to meet the requirement of recycling water quality after underground engineering wastewater treatment, so that the wastewater can be recycled after treatment.
The waste water brought by the prior underground engineering causes pollution of different degrees to underground water, lakes, rivers and the like, so that the water quality is poor, the water cannot be drunk normally, the growth of algae is promoted, and a large amount of aquatic animals and plants die, so that the ecological environment is disturbed. Therefore, the wastewater from the underground works needs to be treated urgently. The existing stirring tank for underground engineering wastewater treatment still has some problems in the using process, the structural design is simple, the operation is complex, the stirring efficiency is low, and the stirring effect is unsatisfactory, so that a novel stirring tank for underground engineering wastewater treatment system needs to be designed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a control system of a subway engineering construction wastewater treatment device, which has the advantages of simple structure, convenience in operation, high stirring efficiency and ideal stirring effect.
In order to achieve the aim, the invention provides a control system of a wastewater treatment device for subway engineering construction, which comprises a mixing tank, a plurality of support steel frames fixedly connected to the outer side of the lower part of the mixing tank, an upper connecting crank arm, an upper telescopic oil cylinder and a pretreatment tank;
the pretreatment tank comprises a tank body with an opening at the upper end, a screen plate arranged in the tank body, a tank body bracket fixedly supported outside the tank body, a pretreatment tank water inlet pipeline fixedly connected at the upper end of the tank body, a bottom mud discharge pipeline communicated with the bottom of an inner cavity of the tank body and fixedly connected to the bottom end of the tank body, and a pretreatment tank water outlet pipeline communicated with the middle of the inner cavity of the tank body and fixedly connected to one side of the tank body; a clear liquid zone is formed in the middle part in the tank body, and a sludge accumulation zone is formed at the bottom in the tank body; the liquid inlet end of the water inlet pipeline of the pretreatment tank is connected with a sewage source;
the supporting steel frame comprises a support, a pair of vertical beams which are parallel and fixedly connected to the support, an L-shaped support arranged on one side of the pair of vertical beams and a support driving motor arranged on one side of the pair of vertical beams; the vertical beams are respectively provided with a longitudinally extending continuous rack and a longitudinally extending sliding rail on the same side; the upper part and the lower part of the vertical section of the L-shaped bracket corresponding to the position of the continuous rack are respectively provided with a bracket gear, and the bracket gear is rotatably connected to the vertical section of the L-shaped bracket through a gear rotating shaft at the center of the bracket gear; a sliding groove is formed in the position, corresponding to the sliding rail, of the vertical section of the L-shaped support, the sliding groove is sleeved outside the sliding rail in a sliding mode, and the end of the support on the horizontal section of the L-shaped support is fixedly connected with the outer side wall of the mixing tank; the support driving motor is fixedly connected to one side of the L-shaped support, which is far away from the support gear, an output shaft of the support driving motor is connected with an input end of a transmission case fixedly connected to one side of the L-shaped support, and an output end of the transmission case is connected with gear shafts of the two support gears;
the upper opening end of the mixing tank is provided with an upper pressure sealing cover for sealing the mixing tank, and the bottom end of the mixing tank is fixedly connected with a liquid discharge pipeline communicated with the inner cavity of the mixing tank; one end of the upper connecting crank arm is fixedly connected with the upper end face of the upper pressure sealing cover, and the other end of the upper connecting crank arm is hinged with a hinge seat fixedly connected to the outer side of the upper end of the mixing tank; one end of the upper telescopic oil cylinder is hinged with the outer side of the hinged end of the upper connecting crank arm, and the other end of the upper telescopic oil cylinder is hinged with the middle part of the tank body of the mixing tank, so that the upper pressure sealing cover is controlled to be closed or opened through telescopic action;
the water outlet end of the water outlet pipeline of the pretreatment tank is stopped right above the upper opening end of the mixing tank;
the mixing tank comprises a homogeneous mixing cabin body with a jacket structure, a heat transfer medium is filled in a jacket of the homogeneous mixing cabin body, a heat medium pipeline communicated with the jacket space of the homogeneous mixing cabin body is connected to the outside of the homogeneous mixing cabin body, and the other end of the heat medium pipeline is connected with a heat medium supply source;
the device comprises a homogenizing mixing bin body, a liquid feeding pipeline, a separating screen funnel and a homogenizing system, wherein the liquid feeding pipeline is obliquely arranged in the homogenizing mixing bin body from top to bottom, the separating screen funnel is horizontally placed and can rotate relative to the homogenizing mixing bin body, a plurality of side wall openings are formed in the side wall of the separating screen funnel in a spreading mode, a plurality of small holes are formed in the surface of the bottom plate of the separating screen funnel in a spreading mode, the rotating center of the bottom plate is connected with a funnel rotating shaft through a bearing base fixedly connected with the bottom plate, and the lower end, inside the separating screen funnel, of the funnel rotating shaft is connected with a funnel stirring blade in; the funnel rotating shaft is sleeved with an outer gear ring at the upper end of the outer part of the separating filter screen funnel, and the outer gear ring is fixedly connected with the funnel rotating shaft through a radial connecting beam; a waterproof motor is fixedly connected to the inner side wall of the homogeneous mixing cabin body corresponding to the outer gear ring, a funnel gear is assembled on an output shaft of the waterproof motor, and the funnel gear is meshed with the outer gear ring; the liquid outlet end of the liquid feeding pipeline is positioned above the separating filter screen funnel, and the liquid inlet end of the liquid feeding pipeline penetrates through the side wall of the homogenizing and mixing bin body and then is connected with a liquid feeding source;
a bearing accommodating groove which is sunken downwards is formed in the center of the bearing bottom support, and an annular cavity is formed in the bearing bottom support in a mode of surrounding the bearing accommodating groove; a backstop bearing is fixedly assembled in the bearing accommodating groove, and an inner ring of the backstop bearing is fixedly connected with the funnel rotating shaft; the annular cavity is respectively connected with a cooling liquid inlet pipeline and a cooling liquid outlet pipeline which are communicated with the inner cavity of the annular cavity, and the cooling liquid inlet pipeline and the cooling liquid outlet pipeline are respectively connected with a cooling source and a cooling liquid recovery box after radially penetrating through the separating filter screen funnel and the homogeneous mixing bin body;
the homogenizing system comprises a pair of homogenizing middle shafts which are arranged side by side, a pair of homogenizing middle shafts are respectively sleeved with a pair of corresponding homogenizing impeller sets in a rotatable mode in the middle, each homogenizing impeller set is composed of a plurality of high-speed homogenizing impellers, and high-speed homogenizing impellers in the pair of homogenizing impeller sets are meshed with each other; two opposite ends of the pair of homogenizing middle shafts respectively penetrate out of the homogenizing mixing cabin body in a rotatable mode and then are respectively connected with output parts of homogenizing driving mechanisms fixedly connected to two sides of the outside of the homogenizing mixing cabin body; the other end of the homogenizing middle shaft, which is far away from the driving mechanism, is rotationally connected with the inner side wall of the homogenizing mixing bin body through a closed thrust bearing;
the control box is connected with the support driving motor, the homogenizing driving mechanism and the waterproof motor respectively, a THX201 controller is adopted as the core of the control box, a DRV pin of the THX201 controller is connected with a base electrode of a switch tube QM, a COMPI pin of the THX201 controller is grounded through a parallel circuit of a capacitor C1 and a resistor R1, a COMPV pin of the THX201 controller is grounded through a parallel circuit of a capacitor C2 and a resistor R2, and I of the THX201 controller is groundedFBThe pin is connected with the emitter of the switch tube QM, the GND pin of the THX201 controller is grounded, and the GND pin and the I of the THX201 controllerFBThe pins pass through a resistor RSThe pin THX201 is connected with the VDD pin of the controller and the cathode of the diode D1, the anode of the diode D1 is connected with one end of the resistor R11 and the winding N respectivelyTOne end of the resistor R11 is connected with the other end of the resistor R11 and the other end of the resistor R11 is respectively connected with the V of the THX201 controllerFBOne end of a pin resistor R22 and a power supply VSConnected, the other end of the resistor R22 is grounded, and the winding NTThe other end of the first and second electrodes is grounded; the collectors of the switch tube QM and the primary winding N of the transformer T respectivelyPIs connected to the anode of a diode D2, and the primary winding N of the transformer TPThe other end of the first resistor is connected with the cathode of a diode D2 through a parallel circuit of a resistor R3 and a capacitor C3, and a primary winding N of a transformer TPThe other end of the rectifier bridge UR is also connected with one output end of the rectifier bridge UR, the other output end of the rectifier bridge UR is grounded, and two input ends of the rectifier bridge UR are connected with two output ends of the alternating current power supply; transformer T secondary winding NSOne end of the diode D3 is connected to the anode of a diode D3, the cathode of the diode D3 is grounded through a parallel circuit of a resistor R4 and a capacitor C4, and a secondary winding N of a transformer T is connected to the groundSAnd the other end of the same is grounded.
Preferably, the homogenizing driving mechanism is formed by connecting a homogenizing driving motor and a speed reducer.
Furthermore, in order to facilitate centralized control, a rotating speed sensor is arranged on the speed reducer, and the heat medium supply source and the liquid adding source are respectively a heat medium supply pump connected with the heat medium source and a liquid adding pump connected with the liquid source;
the control box is respectively connected with the rotating speed sensor, the heat medium supply pump and the liquid charging pump.
Preferably, the number of the supporting steel frames is 3, and the supporting steel frames are uniformly distributed on the outer side of the mixing tank;
the wall thickness of the homogenizing and mixing bin body is 2 mm-50 mm;
the separating filter screen funnel is positioned at the position which is 25 mm-55 mm above the waist part of the homogeneous mixing cabin body;
the included angle between the liquid feeding pipeline and the horizontal direction is 10-32 degrees;
the funnel stirring blade consists of a circular ring sleeved outside the funnel rotating shaft and a radial connecting rod for connecting the circular ring and the funnel rotating shaft;
the thickness of the pore canal is 20 mm-30 mm.
Further, in order to facilitate the detection homogeneity degree, still including setting up the homogeneity degree detector in the homogeneous mixing storehouse internal portion, the homogeneity degree detector is connected with the control box.
Furthermore, in order to improve the homogenizing effect, the number of the high-speed homogenizing wave wheels is 10, the adjacent high-speed homogenizing wave wheels are arranged at equal intervals, the interval is between 5mm and 12mm, and the appearance of the high-speed homogenizing wave wheels is in a ratchet shape.
Further, in order to improve the heat dissipation effect, the quantity of fin exhibition pole and hydro-cylinder fin is 6, and the material of hydro-cylinder fin is sheet metal stainless steel.
Further, the bottom of the tank body is in an inverted frustum shape.
Further, the distance between the two bracket gears is 15 cm-25 cm
Further, in order to obtain a high-speed homogeneous wave wheel with good homogeneity improving effect, the high-speed homogeneous wave wheel is made of high polymer materials, and comprises the following components in percentage by mass:
30-65% of methyl ester derivative, 25-60% of thiophosphate derivative, 1-5% of mixed auxiliary agent, 1-5% of cross-linking agent, 15-45% of O-ethyl O- (4-methylthiophenyl) S-propyl phosphorodithioate and 2-15% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc.
Further, in order to obtain a high-speed homogeneous impeller with good homogeneity improving effect, the preparation method of the high-speed homogeneous impeller comprises the following steps:
step 1: adding 22-32% of ultrapure water with the conductivity of 1.25 muS/cm-3.15 muS/cm into a reaction kettle, starting a stirrer in the reaction kettle at the rotating speed of 125-375 rpm, and starting a heating pump to raise the temperature in the reaction kettle to 75-185 ℃; sequentially adding 30-65% of methyl ester derivatives and 1-5% of mixed auxiliary agents, stirring until the methyl ester derivatives and the mixed auxiliary agents are completely dissolved, adjusting the pH value to 5.5-8.5, adding 25-60% of thiophosphate derivatives, and adjusting the rotation speed of a stirrer to 255-315 rpm at the temperature of 90-395 ℃;
step 2: adding 15-45% of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate and 2-15% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc, and uniformly mixing;
and 3, step 3: adding 1-5% of cross-linking agent, setting the rotation speed of a stirrer at 75-235 rpm and the temperature at 90-265 ℃, keeping the state for 5-25 hours, discharging, and putting into a molding press to obtain the high-speed homogeneous impeller.
According to the invention, the upper pressure sealing cover is controlled to open and close through the upper telescopic oil cylinder, so that the automation degree of the device can be improved, and the wastewater to be treated can be conveniently added. Waterproof motor passes through the operation of funnel gear drive funnel pivot, and then drives the rotation of funnel stirring leaf, reaches the purpose to the even stirring of material, but also can make the liquid additive of joining and the pending waste water that blending tank upper end added carry out even mixture and stir in advance, and a pair of homogeneity wheelset is the high-speed motion in opposite directions by the drive of even actuating mechanism in the homogeneous system, can not only improve stirring effect, can promote the reaction between additive and the pending waste water moreover. The support steel frame can control the height of the mixing tank relative to the support plane. The pretreatment tank is arranged to facilitate standing precipitation of the wastewater after reaction with the additive, so as to separate treated clear water and discharge precipitated bottom mud. The device simple structure, stirring are efficient, and the homogeneity effect is ideal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a support steel frame according to the present invention;
FIG. 3 is a schematic view of the mixing tank of the present invention;
FIG. 4 is a schematic diagram of a separatory strainer funnel of the present invention;
FIG. 5 is a schematic view of the structure of the bearing shoe of the present invention;
FIG. 6 is a schematic diagram of the homogenization system of the present invention;
FIG. 7 is a schematic diagram showing the structure of a pretreatment tank in the present invention;
FIG. 8 is a core circuit diagram of a controller in the control box of the present invention;
FIG. 9 is a graph showing the effect of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate on uniformity improvement rate in accordance with the present invention;
FIG. 10 is a schematic diagram showing the molecular structural characteristics of the methyl ester derivatives of the present invention;
FIG. 11 is a schematic representation of the molecular structural features of phosphorothioate derivatives of the present invention;
FIG. 12 is a schematic view showing the molecular structural characteristics of the oxysilane-based material according to the present invention.
In the figure: 1. the device comprises a supporting steel frame, 1-1 parts, a support driving motor, 1-2 parts, a transmission case, 1-3 parts, support ends, 1-4 parts, sliding rails, 1-5 parts, continuous racks, 1-6 parts, support gears, 1-7 parts, an L-shaped support, 1-8 parts, a support, 1-9 parts, a vertical beam, 2 parts, a mixing tank, 2-1 parts, a homogenizing and mixing bin, 2-2 parts, a separating screen funnel, 2-2-1 parts, side wall openings, 2-2-2 parts, an outer gear ring, 2-2-3 parts, a funnel gear, 2-2-4 parts, a waterproof motor, 2-2-5 parts, a funnel stirring blade, 2-2-6 parts, a bearing base, 2-2-6-1 parts, a bearing accommodating groove, 2-2-2-6-2 parts, An annular cavity, 2-2-6-3 parts of a retaining bearing, 2-2-6-4 parts of a cooling liquid inlet pipeline, 2-2-6-4 parts of a cooling liquid outlet pipeline, 2-3 parts of a liquid adding pipeline, 2-4 parts of a homogenizing system, 2-4-1 parts of a homogenizing driving motor, 2-4-2 parts of a speed reducer, 2-4-3 parts of a homogenizing middle shaft, 2-4-4 parts of a closed thrust bearing, 2-4-5 parts of a high-speed homogenizing impeller, 2-5 parts of a homogeneity degree detector, 3 parts of an upper pressure sealing cover, 4 parts of an upper connecting crank arm, 5 parts of an upper telescopic oil cylinder, 6 parts of a liquid discharging pipeline, 7 parts of a pretreatment tank, 7-1 parts of a bottom mud discharging pipeline, 7-2 parts of a mesh plate, 7-3 parts of a tank body, and 7-5 parts of a tank body, The device comprises a clear liquid area, 7-6 parts of a sludge accumulation area, 7-7 parts of a pretreatment pool water inlet pipeline, 7-8 parts of a pretreatment pool water outlet pipeline, 8 parts of a control box, 9 parts of a radial connecting beam, 10 parts of a funnel rotating shaft.
Detailed Description
The present invention is further described below.
As shown in fig. 1 to 8, a control system of a wastewater treatment device for subway engineering construction comprises a mixing tank 2, a plurality of support steel frames 1 fixedly connected to the outer side of the lower part of the mixing tank 2, an upper connecting crank arm 4, an upper telescopic oil cylinder 5 and a pretreatment tank 7;
the pretreatment tank 7 comprises a tank body 7-3 with an opening at the upper end, a screen plate 7-2 arranged inside the tank body 7-3, a tank body bracket 7-4 fixedly supported outside the tank body 7-3, a pretreatment tank water inlet pipeline 7-7 fixedly connected to the upper end of the tank body 7-3, a bottom mud discharge pipeline 7-1 communicated with the bottom of an inner cavity of the tank body 7-3 and fixedly connected to the bottom end of the tank body 7-3, and a pretreatment tank water outlet pipeline 7-8 communicated with the middle of the inner cavity of the tank body 7-3 and fixedly connected to one side of the tank body 7-3; a clear liquid zone 7-5 is formed in the middle of the inner part of the tank body 7-3, and a sludge accumulation zone 7-6 is formed at the bottom of the tank body 7-3; the liquid inlet end of the water inlet pipeline 7-7 of the pretreatment tank is connected with a sewage source;
the supporting steel frame 1 comprises supports 1-8, a pair of vertical beams 1-9 which are fixedly connected to the supports 1-8 in parallel, L-shaped supports 1-7 arranged on one sides of the pair of vertical beams 1-9 and support driving motors 1-1 arranged on one sides of the pair of vertical beams 1-9; a pair of vertical beams 1-9 are respectively provided with a longitudinally extending continuous rack 1-5 and a longitudinally extending slide rail 1-4 at the same side; the upper part and the lower part of the vertical section of the L-shaped bracket 1-7 corresponding to the position of the continuous rack 1-5 are respectively provided with a bracket gear 1-6, and the bracket gear 1-6 is rotatably connected to the vertical section of the L-shaped bracket 1-7 through a gear rotating shaft at the center of the bracket gear; a sliding groove is formed in the position, corresponding to the sliding rail 1-4, of the vertical section of the L-shaped support 1-7, the sliding groove is sleeved outside the sliding rail 1-4 in a sliding mode, and the support end 1-3 on the horizontal section of the L-shaped support 1-7 is fixedly connected with the outer side wall of the mixing tank 2; the support driving motor 1-1 is fixedly connected to one side of the L-shaped support 1-7, which is far away from the support gear 1-6, an output shaft of the support driving motor is connected with an input end of a transmission case 1-2 fixedly connected to one side of the L-shaped support 1-7, and an output end of the transmission case 1-2 is connected with gear rotating shafts of the two support gears 1-6;
an upper pressure sealing cover 3 for sealing the mixing tank 2 is arranged at the upper opening end of the mixing tank 2, and a liquid discharge pipeline 6 communicated with the inner cavity of the mixing tank 2 is fixedly connected at the bottom end of the mixing tank 2; one end of the upper connecting crank arm 4 is fixedly connected with the upper end face of the upper pressure sealing cover 3, and the other end of the upper connecting crank arm is hinged with a hinge seat fixedly connected to the outer side of the upper end of the mixing tank 2; one end of an upper telescopic oil cylinder 5 is hinged with the outer side of the hinged end of the upper connecting crank arm 4, and the other end of the upper telescopic oil cylinder is hinged with the middle part of the tank body of the mixing tank 2, so that the upper pressure sealing cover 3 is controlled to be closed or opened through telescopic action;
the water outlet end of the water outlet pipeline 7-8 of the pretreatment tank is stopped right above the upper opening end of the mixing tank 2;
the mixing tank 2 comprises a homogeneous mixing cabin body 2-1 with a jacket structure, a jacket of the homogeneous mixing cabin body 2-1 is filled with a heat transfer medium, a heat medium pipeline communicated with the jacket space of the homogeneous mixing cabin body 2-1 is connected to the outside of the homogeneous mixing cabin body, and the other end of the heat medium pipeline is connected with a heat medium supply source;
a liquid adding pipeline 2-3 which is obliquely arranged, a separating screen funnel 2-2 which is horizontally placed and can rotate relative to the homogenizing mixing cabin body 2-1 and a homogenizing system 2-4 are sequentially arranged in the homogenizing mixing cabin body 2-1 from top to bottom, a plurality of side wall openings 2-2-1 are distributed on the side wall of the separating screen funnel 2-2, a plurality of small holes are distributed on the surface of the bottom plate of the separating screen funnel 2-2, the rotating center of the bottom plate is connected with a funnel rotating shaft 10 through a bearing bottom support 2-2-6 which is fixedly connected with the bottom plate, and the lower end of the funnel rotating shaft 10 in the separating screen funnel 2-2 is connected with a funnel stirring blade 2-2-5 which is in clearance fit with the inner part of the lower end of the homogenizing mixing cabin body 2-1; the funnel rotating shaft 10 is sleeved with an outer gear ring 2-2-2 at the upper end of the outer part of the separating filter screen funnel 2-2, and the outer gear ring 2-2-2 is fixedly connected with the funnel rotating shaft 10 through a radial connecting beam 9; a waterproof motor 2-2-4 is fixedly connected on the inner side wall of the homogeneous mixing cabin body 2-1 corresponding to the outer gear ring 2-2-2, a funnel gear 2-2-3 is assembled on an output shaft of the waterproof motor 2-2-4, and the funnel gear 2-2-3 is meshed with the outer gear ring 2-2-2; the liquid outlet end of the liquid adding pipeline 2-3 is positioned above the separating filter screen funnel 2-2, and the liquid inlet end thereof penetrates through the side wall of the homogeneous mixing cabin body 2-1 and then is connected with a liquid adding source;
a bearing accommodating groove 2-2-6-1 which is sunken downwards is formed in the center of the bearing bottom support 2-2-6, and an annular cavity 2-2-6-2 is formed in the bearing bottom support 2-2-6 in a manner of surrounding the bearing accommodating groove 2-2-6-1; a backstop bearing 2-2-6-3 is fixedly assembled in the bearing accommodating groove, and the inner ring of the backstop bearing 2-2-6-3 is fixedly connected with a funnel rotating shaft 10; the annular cavity 2-2-6-2 is respectively connected with a cooling liquid inlet pipeline 2-2-6-4 and a cooling liquid outlet pipeline 2-2-6-5 which are communicated with the inner cavity of the annular cavity, and the cooling liquid inlet pipeline 2-2-6-4 and the cooling liquid outlet pipeline 2-2-6-5 are respectively connected with a cooling source and a cooling liquid recovery box after radially penetrating through a separating screen funnel 2-2 and a homogenizing mixing cabin body 2-1;
the homogenizing system 2-4 comprises a pair of homogenizing middle shafts 2-4-3 arranged side by side, a pair of homogenizing middle shafts 2-4-3 are respectively sleeved with a pair of corresponding homogenizing impeller sets in the middle in a rotatable manner, each homogenizing impeller set consists of a plurality of high-speed homogenizing impellers 2-4-5, and the high-speed homogenizing impellers 2-4-5 in the pair of homogenizing impeller sets are meshed; the two opposite ends of the pair of homogeneous middle shafts 2-4-3 respectively penetrate out of the homogeneous mixing cabin body 2-1 in a rotatable way and then are respectively connected with the output parts of the homogeneous driving mechanisms fixedly connected with the two outer sides of the homogeneous mixing cabin body 2-1; the other end of the homogenizing middle shaft 2-4-3, which is far away from the driving mechanism, is rotatably connected with the inner side wall of the homogenizing mixing bin body 2-1 through a closed thrust bearing 2-4-4;
the water-proof support is characterized by further comprising a control box 8, the control box 8 is respectively connected with a support driving motor 1-1, a homogenizing driving mechanism and a water-proof motor 2-2-4, a THX201 controller is adopted as the core of the control box 8, a DRV pin of the THX201 controller is connected with a base electrode of a switch tube QM, a COMPI pin of the THX201 controller is grounded through a parallel circuit of a capacitor C1 and a resistor R1, a COMPV pin of the THX201 controller is grounded through a parallel circuit of a capacitor C2 and a resistor R2, and an I pin of the THX201 controller is grounded through a parallel circuit of a capacitor C2 andFBthe pin is connected with the emitter of the switch tube QM, the GND pin of the THX201 controller is grounded, and the GND pin and the I of the THX201 controllerFBThe pins pass through a resistor RSThe pin THX201 is connected with the VDD pin of the controller and the cathode of the diode D1, the anode of the diode D1 is connected with one end of the resistor R11 and the winding N respectivelyTOne end of the resistor R11 is connected with the other end of the resistor R11 and the other end of the resistor R11 is respectively connected with the V of the THX201 controllerFBOne end of a pin resistor R22 and a power supply VSConnected, the other end of the resistor R22 is grounded, and the winding NTThe other end of the first and second electrodes is grounded; the collectors of the switch tube QM and the primary winding N of the transformer T respectivelyPIs connected to the anode of a diode D2, and the primary winding N of the transformer TPThe other end of the first resistor is connected with the cathode of a diode D2 through a parallel circuit of a resistor R3 and a capacitor C3, and a primary winding N of a transformer TPThe other end of the rectifier bridge UR is also connected with one output end of the rectifier bridge UR, the other output end of the rectifier bridge UR is grounded, and two input ends of the rectifier bridge UR are connected with two output ends of the alternating current power supply; transformer T secondary winding NSOne end of the diode D3 is connected to the anode of a diode D3, the cathode of the diode D3 is grounded through a parallel circuit of a resistor R4 and a capacitor C4, and a secondary winding N of a transformer T is connected to the groundSAnd the other end of the same is grounded.
The homogenizing driving mechanism is formed by connecting a homogenizing driving motor 2-4-1 and a speed reducer 2-4-2.
A rotating speed sensor is arranged on the speed reducer 2-4-2, and the heat medium supply source and the liquid adding source are respectively a heat medium supply pump connected with the heat medium source and a liquid adding pump connected with the liquid source;
the control box 8 is also connected with a rotating speed sensor, a heat medium supply pump and a charging pump respectively.
The number of the supporting steel frames 1 is 3, and the supporting steel frames are uniformly distributed on the outer side of the mixing tank 2;
the wall thickness of the homogeneous mixing cabin body 2-1 is 2 mm-50 mm;
the separating filter screen funnel 2-2 is positioned at the position 25 mm-55 mm above the waist part of the homogeneous mixing cabin body 2-1;
the included angle between the liquid feeding pipeline 2-3 and the horizontal direction is 10-32 degrees;
the funnel stirring blade 2-2-5 consists of a circular ring sleeved outside the funnel rotating shaft 10 and a radial connecting rod for connecting the circular ring and the funnel rotating shaft 10;
the thickness of the pore canal 2-2-1-1 is 20 mm-30 mm.
The homogenizing degree detector 2-5 is arranged inside the homogenizing mixing cabin body 2-1, and the homogenizing degree detector 2-5 is connected with the control box 8.
The number of the high-speed homogenizing wave wheels 2-4-5 is 10, the adjacent high-speed homogenizing wave wheels 2-4-5 are arranged at equal intervals, the distance is 5 mm-12 mm, and the shape of the high-speed homogenizing wave wheels 2-4-5 is ratchet-shaped.
The bottom of the tank body 7-3 is in an inverted frustum shape.
The distance between the two bracket gears 1-6 is 15 cm-25 cm.
The high-speed homogeneous impeller 2-4-5 is made of high polymer materials and comprises the following components in percentage by mass:
30-65% of methyl ester derivative, 25-60% of thiophosphate derivative, 1-5% of mixed auxiliary agent, 1-5% of cross-linking agent, 15-45% of O-ethyl O- (4-methylthiophenyl) S-propyl phosphorodithioate and 2-15% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc.
The cross-linking agent is any one of sodium diisopropyl dithiophosphate, isoamyl and isopropyl) zinc dithiophosphate and tetraphenyl (bisphenol-A) diphosphate.
The molecular structure of the methyl ester derivative is characterized as shown in figure 10, wherein R is alkyl with 1-8 carbon atoms.
The molecular structure of the phosphorothioate derivative is characterized as shown in FIG. 11, and the molecular formula is as follows: C10H15O3PS 2; molecular weight: 278.343.
the mixing auxiliary agent is an oxysilane substance, the molecular structural formula of the mixing auxiliary agent is shown in figure 12, and the molecular formula of the molecular structure is as follows: C16H20O2 Si.
The preparation method of the high-speed homogeneous impeller 2-4-5 comprises the following steps:
step 1: adding 22-32% of ultrapure water with the conductivity of 1.25 muS/cm-3.15 muS/cm into a reaction kettle, starting a stirrer in the reaction kettle at the rotating speed of 125-375 rpm, and starting a heating pump to raise the temperature in the reaction kettle to 75-185 ℃; sequentially adding 30-65% of methyl ester derivatives and 1-5% of mixed auxiliary agents, stirring until the methyl ester derivatives and the mixed auxiliary agents are completely dissolved, adjusting the pH value to 5.5-8.5, adding 25-60% of thiophosphate derivatives, and adjusting the rotation speed of a stirrer to 255-315 rpm at the temperature of 90-395 ℃;
step 2: adding 15-45% of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate and 2-15% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc, and uniformly mixing;
and 3, step 3: adding 1-5% of cross-linking agent, stirring at 75-235 rpm and 90-265 deg.C, holding the state for 5-25 hr, discharging, and molding to obtain the high-speed homogeneous impeller 2-4-5.
The following examples further illustrate the content of the present invention, which is an important component of the present invention as the high-speed homogeneous pulsator 2-4-5, because of its existence, the service life of the whole apparatus is increased, and it plays a key role in the safe and smooth operation of the whole apparatus. To this end, the following examples further demonstrate that the components of the present invention exhibit physical characteristics that are higher than those of other related patents.
Example 1
The high-speed homogeneous impeller 2-4-5 is manufactured according to the following steps, and comprises the following components by mass percent:
step 1: adding 22% of ultrapure water with the conductivity of 1.25 muS/cm into the reaction kettle, starting a stirrer in the reaction kettle at the rotating speed of 125rpm, and starting a heating pump to raise the temperature in the reaction kettle to 75 ℃; sequentially adding 30% of methyl ester derivative and 1% of mixed auxiliary agent, stirring until the methyl ester derivative and the mixed auxiliary agent are completely dissolved, adjusting the pH value to 5.5, adding 25% of thiophosphate derivative, and adjusting the rotation speed of a stirrer to 255rpm at the temperature of 90 ℃;
step 2: adding 15-45% of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate and 2% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc, and uniformly mixing;
and 3, step 3: adding cross-linking agent 1%, stirring at 75rpm and 90 deg.C, holding the state for 5 hr, discharging, and molding to obtain high-speed homogeneous impeller 2-4-5.
Example 2
The high-speed homogeneous impeller 2-4-5 is manufactured according to the following steps, and comprises the following components by mass percent:
step 1: adding 32% of ultrapure water with the conductivity of 3.15 mu S/cm into the reaction kettle, starting a stirrer in the reaction kettle at the rotating speed of 375rpm, and starting a heating pump to raise the temperature in the reaction kettle to 185 ℃; sequentially adding 65% of methyl ester derivative and 5% of mixed auxiliary agent, stirring until the methyl ester derivative and the mixed auxiliary agent are completely dissolved, adjusting the pH value to 8.5, adding 60% of thiophosphate derivative, and adjusting the rotation speed of a stirrer to 315rpm at 395 ℃;
step 2: adding 45% of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate and 15% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc, and uniformly mixing;
and 3, step 3: adding cross-linking agent 5%, stirring at 235rpm and 265 deg.C, holding the state for 25 hr, discharging, and molding to obtain high-speed homogeneous impeller 2-4-5.
Example 3
The high-speed homogeneous impeller 2-4-5 is manufactured according to the following steps, and comprises the following components by mass percent:
step 1: adding 29 percent of ultrapure water with the conductivity of 1.315 mu S/cm into a reaction kettle, starting a stirrer in the reaction kettle at the rotating speed of 178rpm, and starting a heating pump to raise the temperature in the reaction kettle to 85 ℃; sequentially adding 39% of methyl ester derivative and 4% of mixed auxiliary agent, stirring until the methyl ester derivative and the mixed auxiliary agent are completely dissolved, adjusting the pH value to 5.8, adding 40% of thiophosphate derivative, and adjusting the rotation speed of a stirrer to 300rpm at the temperature of 90 ℃;
step 2: adding 40% of O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate and 10% of (T-4) -bis (diethyl dithiocarbamate-S, S') zinc, and uniformly mixing;
and 3, step 3: adding 3% cross-linking agent, stirring at 90rpm and 91 deg.C, holding the state for 8 hr, discharging, and molding to obtain high-speed homogeneous impeller 2-4-5.
Comparative example
The comparison example is the use condition of a high-speed homogenizing impeller of a certain brand sold in the market in the oil product mixing and sorting process.
The high-speed homogeneous wave wheel 2-4-5 prepared in the embodiment 1-3 and the high-speed homogeneous wave wheel described in the comparative example are used for comparing the use conditions of the oil product mixing process, and the volume resistivity, the oil separation degree, the viscosity reduction rate and the mixing uniformity improvement rate are taken as technical indexes for statistics, and the results are shown in table 1:
Figure DEST_PATH_IMAGE002
table 1 shows the comparison results of various parameters of the high-speed homogenizing impeller described in examples 1 to 3 and the comparative example when used in the oil product mixing process, and it can be seen from table 1 that the volume resistivity, the oil separation degree, the viscosity reduction rate, and the mixing uniformity improvement rate of the high-speed homogenizing impeller 2-4-5 of the present invention are all higher than those of the products produced by the prior art.
Further, as shown in FIG. 9, there is a graph showing the influence of the O-ethyl O- (4-methylthiophenyl) S-propyl dithiophosphate on the uniformity improvement rate. As seen in the figure, the doping amount of the high-speed homogeneous impeller 2-4-5 material is important for improving the product performance, and the doping amount is greatly superior to that of the existing product in the aspect of uniformity improvement rate.
The working method of the device comprises the following steps:
step 1: in the pretreatment tank 7, wastewater enters a clear solution zone 7-5 through a pretreatment tank water inlet pipeline 7-7 for pretreatment so as to precipitate insoluble substances; under the action of the screen plate 7-2, floating objects in the wastewater are filtered; meanwhile, solid matters in the wastewater are settled to a sludge accumulation area 7-6 and discharged from a bottom sludge discharge pipeline 7-1, and then the remaining clear water flows out from a water outlet pipeline 7-8 of the pretreatment tank and enters a mixing tank 2;
step 2: the settled sewage enters the mixing tank 2 through a guide pipe, the upper pressure sealing cover 3 slowly descends through being connected with the crank arm 4 under the action of the upper telescopic oil cylinder 5 and is fitted with the mixing tank 2 to realize sealing;
and 3, step 3: when the support dispatching needs to be adjusted, three support driving motors 1-1 in the three support steel frames 1 are controlled to synchronously operate, and the transmission boxes 1-2 are driven to operate; the transmission case 1-2 simultaneously drives the support gear 1-6 to rotate in the same direction, so that the support gear 1-6 drives the L-shaped support 1-7 to ascend and descend, and the sliding groove arranged at the vertical section of the L-shaped support 1-7 is sleeved outside the sliding rail 1-4 in a sliding manner, so that the L-shaped support 1-7 can be ensured not to be separated from the vertical beam 1-9 in the ascending or descending process; when the bracket gear 1-6 rotates anticlockwise, the L-shaped bracket 1-7 is in a rising state; when the support gear 1-6 rotates clockwise, the L-shaped support 1-7 is in a descending state;
and 4, step 4: in the mixing tank 2, an additive for treating sewage enters the separating screen funnel 2-2 through the liquid adding pipeline 2-3, the liquid adding pipeline 2-3 is obliquely arranged, the entered sewage acts on the separating screen funnel 2-2, the separating screen funnel 2-2 rotates while performing filtering operation, and the rotating separating screen funnel 2-2 performs filtering, so that the sewage and the additive are better mixed; the two homogenizing driving mechanisms drive the two pairs of homogenizing impeller groups to move oppositely, and the high-speed homogenizing impellers in the pair of homogenizing impeller groups are meshed with each other, so that sewage and additives can achieve a homogenizing and mixing effect, and then enter the lower part of the homogenizing and mixing bin body 2-1; the homogeneity degree detector 2-5 makes an induction reaction on the homogeneity degree of the sewage entering the lower part of the homogeneous mixing bin body 2-1 and detects the same; when the homogeneity degree does not meet the detection standard, the homogeneity degree detector 2-5 sends an electric signal to the control box 8, and the controller 8 gives an alarm through an alarm connected with the controller.
And 5, step 5: in the separating filter screen funnel 2-2, the waterproof motor 2-2-4 is switched on and then operates to drive the funnel gear 2-2-3 to rotate, and then the funnel gear 2-2-3 drives the funnel rotating shaft 10 to operate to drive the funnel stirring blade 2-2-5 to rotate, so that the mixed liquid is uniformly stirred; after being stirred, the mixed solution flows out from the bottom plate and the side wall opening 2-2-1 of the separating filter screen funnel 2-2;
and 6, step 6: in the bearing bottom support 2-2-6, cooling liquid enters from a cooling liquid inlet pipeline 2-2-6-4 and flows into the annular cavity 2-2-6-2 through a cooling liquid outlet pipeline 2-2-6-4, and then is discharged from the cooling liquid outlet pipeline 2-2-6-4; and cooling the stop bearing 2-2-6-3.

Claims (7)

1. A control system of a subway engineering construction wastewater treatment device comprises a mixing tank (2) and a plurality of support steel frames (1) fixedly connected to the outer side of the lower part of the mixing tank (2), and is characterized by further comprising an upper connecting crank arm (4), an upper telescopic oil cylinder (5) and a pretreatment tank (7);
the pretreatment tank (7) comprises a tank body (7-3) with an opening at the upper end, a screen plate (7-2) arranged inside the tank body (7-3), a tank body support (7-4) fixedly supported outside the tank body (7-3), a pretreatment tank water inlet pipeline (7-7) fixedly connected to the upper end of the tank body (7-3), a bottom sludge discharge pipeline (7-1) communicated with the bottom of an inner cavity of the tank body (7-3) and fixedly connected to the bottom end of the tank body (7-3), and a pretreatment tank water outlet pipeline (7-8) communicated with the middle of the inner cavity of the tank body (7-3) and fixedly connected to one side of the tank body (7-3); a clear liquid zone (7-5) is formed in the middle of the inner part of the tank body (7-3), and a sludge accumulation zone (7-6) is formed at the bottom of the inner part of the tank body (7-3); the liquid inlet end of the water inlet pipeline (7-7) of the pretreatment tank is connected with a sewage source;
the supporting steel frame (1) comprises supports (1-8), a pair of vertical beams (1-9) which are fixedly connected to the supports (1-8) in parallel, L-shaped supports (1-7) arranged on one sides of the vertical beams (1-9) and support driving motors (1-1) arranged on one sides of the vertical beams (1-9); a pair of vertical beams (1-9) are respectively provided with a longitudinally extending continuous rack (1-5) and a longitudinally extending slide rail (1-4) at the same side; the upper part and the lower part of the vertical section of the L-shaped bracket (1-7) corresponding to the position of the continuous rack (1-5) are respectively provided with a bracket gear (1-6), and the bracket gear (1-6) is rotatably connected to the vertical section of the L-shaped bracket (1-7) through a gear rotating shaft at the center of the bracket gear; a chute is formed in the position, corresponding to the sliding rail (1-4), of the vertical section of the L-shaped support (1-7), the chute is sleeved outside the sliding rail (1-4) in a sliding mode, and a support end (1-3) on the horizontal section of the L-shaped support (1-7) is fixedly connected with the outer side wall of the mixing tank (2); the support driving motor (1-1) is fixedly connected to one side of the L-shaped support (1-7) departing from the support gears (1-6), an output shaft of the support driving motor is connected with an input end of a transmission case (1-2) fixedly connected to one side of the L-shaped support (1-7), and an output end of the transmission case (1-2) is connected with gear rotating shafts of the two support gears (1-6);
an upper pressure sealing cover (3) for sealing the mixing tank (2) is arranged at the upper opening end of the mixing tank (2), and a liquid discharge pipeline (6) communicated with the inner cavity of the mixing tank (2) is fixedly connected at the bottom end of the mixing tank; one end of the upper connecting crank arm (4) is fixedly connected with the upper end face of the upper pressure sealing cover (3), and the other end of the upper connecting crank arm is hinged with a hinge seat fixedly connected to the outer side of the upper end of the mixing tank (2); one end of the upper telescopic oil cylinder (5) is hinged with the outer side of the hinged end of the upper connecting crank arm (4), and the other end of the upper telescopic oil cylinder is hinged with the middle part of the tank body of the mixing tank (2) so as to control the covering or the opening of the upper pressure sealing cover (3) through telescopic action;
the water outlet end of the water outlet pipeline (7-8) of the pretreatment tank is stopped right above the upper opening end of the mixing tank (2);
the mixing tank (2) comprises a homogeneous mixing cabin body (2-1) with a jacket structure, a jacket of the homogeneous mixing cabin body (2-1) is filled with heat transfer media, the outside of the homogeneous mixing cabin body (2-1) is connected with a heat medium pipeline communicated with the jacket space of the homogeneous mixing cabin body, and the other end of the heat medium pipeline is connected with a heat medium supply source;
a liquid adding pipeline (2-3) which is obliquely arranged, a separating screen funnel (2-2) which is horizontally placed and can rotate relative to the homogenizing mixing cabin body (2-1) and a homogenizing system (2-4) are sequentially arranged in the homogenizing mixing cabin body (2-1) from top to bottom, a plurality of side wall open pores (2-2-1) are arranged on the side wall of the separating screen funnel (2-2) all over, a plurality of small holes are arranged on the bottom plate of the separating screen funnel (2-2) all over the surface of the separating screen funnel, the rotating center of the bottom plate is connected with a funnel rotating shaft (10) through a bearing bottom support (2-2-6) fixedly connected with the bottom plate, and the lower end of the funnel rotating shaft (10) in the separating screen funnel (2-2) is connected with a funnel stirring blade (2-2-5) in clearance fit with the inner part of the lower end of the homogenizing and mixing bin body (2-1); an outer gear ring (2-2-2) is sleeved at the upper end of the funnel rotating shaft (10) outside the separating filter screen funnel (2-2), and the outer gear ring (2-2-2) is fixedly connected with the funnel rotating shaft (10) through a radial connecting beam (9); a waterproof motor (2-2-4) is fixedly connected to the inner side wall of the homogeneous mixing cabin body (2-1) corresponding to the outer gear ring (2-2-2), a funnel gear (2-2-3) is assembled on an output shaft of the waterproof motor (2-2-4), and the funnel gear (2-2-3) is meshed with the outer gear ring (2-2-2); the liquid outlet end of the liquid adding pipeline (2-3) is positioned above the separating filter screen funnel (2-2), and the liquid inlet end of the liquid adding pipeline penetrates through the side wall of the homogenizing and mixing cabin body (2-1) and then is connected with a liquid adding source;
a bearing accommodating groove (2-2-6-1) which is sunken downwards is formed in the center of the bearing bottom support (2-2-6), and an annular cavity (2-2-6-2) is formed in the bearing bottom support (2-2-6) in a manner of surrounding the bearing accommodating groove (2-2-6-1); a retaining bearing (2-2-6-3) is fixedly assembled in the bearing accommodating groove, and the inner ring of the retaining bearing (2-2-6-3) is fixedly connected with the funnel rotating shaft (10); the annular cavity (2-2-6-2) is respectively connected with a cooling liquid inlet pipeline (2-2-6-4) and a cooling liquid outlet pipeline (2-2-6-5) which are communicated with the inner cavity of the annular cavity, and the cooling liquid inlet pipeline (2-2-6-4) and the cooling liquid outlet pipeline (2-2-6-5) are respectively connected with a cooling source and a cooling liquid recovery box after radially penetrating through the separating screen funnel (2-2) and the homogeneous mixing bin body (2-1);
the homogenizing system (2-4) comprises a pair of homogenizing middle shafts (2-4-3) which are arranged side by side, and a pair of corresponding homogenizing impeller sets are respectively and rotatably sleeved at the middle parts of the pair of homogenizing middle shafts (2-4-3), each homogenizing impeller set consists of a plurality of high-speed homogenizing impellers (2-4-5), and the high-speed homogenizing impellers (2-4-5) in the pair of homogenizing impeller sets are meshed; the two opposite ends of the pair of homogeneous middle shafts (2-4-3) respectively penetrate out of the homogeneous mixing cabin body (2-1) in a rotatable way and then are respectively connected with the output parts of the homogeneous driving mechanisms fixedly connected with the two sides outside the homogeneous mixing cabin body (2-1); the other end of the homogenizing middle shaft (2-4-3) far away from the driving mechanism is rotationally connected with the inner side wall of the homogenizing mixing cabin body (2-1) through a closed thrust bearing (2-4-4);
the water-proof support is characterized by further comprising a control box (8), the control box (8) is respectively connected with the support driving motor (1-1), the homogenizing driving mechanism and the water-proof motor (2-2-4), a THX201 controller is adopted as the core of the control box (8), a DRV pin of the THX201 controller is connected with a base electrode of a switch tube QM, a COMPI pin of the THX201 controller is grounded through a parallel circuit of a capacitor C1 and a resistor R1, a COMPV pin of the THX201 controller is grounded through a parallel circuit of a capacitor C2 and a resistor R2, and an I pin of the THX201 controller is grounded through a parallel circuit of a capacitor C2 and a resistorFBThe pin is connected with the emitter of the switch tube QM, the GND pin of the THX201 controller is grounded, and the GND pin and the I of the THX201 controllerFBThe pins pass through a resistor RSThe pin THX201 is connected with the VDD pin of the controller and the cathode of the diode D1, the anode of the diode D1 is connected with one end of the resistor R11 and the winding N respectivelyTOne end of the resistor R11 is connected with the other end of the resistor R11 and the other end of the resistor R11 is respectively connected with the V of the THX201 controllerFBOne end of a pin resistor R22 and a power supply VSConnected, the other end of the resistor R22 is grounded, and the winding NTThe other end of the first and second electrodes is grounded; the collectors of the switch tube QM and the primary winding N of the transformer T respectivelyPIs connected to the anode of a diode D2, and the primary winding N of the transformer TPThe other end of the first resistor is connected with the cathode of a diode D2 through a parallel circuit of a resistor R3 and a capacitor C3, and a primary winding N of a transformer TPThe other end of the rectifier bridge UR is also connected with one output end of the rectifier bridge UR, the other output end of the rectifier bridge UR is grounded, and two input ends of the rectifier bridge UR are connected with two output ends of the alternating current power supply; transformer T secondary winding NSOne end of the diode D3 is connected to the anode of a diode D3, the cathode of the diode D3 is grounded through a parallel circuit of a resistor R4 and a capacitor C4, and a secondary winding N of a transformer T is connected to the groundSAnd the other end of the same is grounded.
2. The control system of claim 1, wherein the homogeneous driving mechanism is formed by connecting a homogeneous driving motor (2-4-1) and a speed reducer (2-4-2).
3. The control system of a wastewater treatment device for subway engineering construction as claimed in claim 1 or 2, wherein said decelerator (2-4-2) is provided with a rotation speed sensor, said heat medium supply source and said liquid feeding source are respectively a heat medium supply pump connected to said heat medium source and a liquid feeding pump connected to said liquid source;
the control box (8) is also respectively connected with a rotating speed sensor, a heat medium supply pump and a charging pump.
4. The control system of the wastewater treatment device for the subway engineering construction as claimed in claim 3, further comprising a homogeneity degree detector (2-5) disposed inside the homogeneous mixing cabin (2-1), wherein the homogeneity degree detector (2-5) is connected with the control box (8).
5. The control system of the wastewater treatment device for subway engineering construction as claimed in claim 4, wherein the number of said high speed homogenizing wave wheels (2-4-5) is 10, the high speed homogenizing wave wheels (2-4-5) are arranged at equal intervals between adjacent high speed homogenizing wave wheels (2-4-5), the interval is 5 mm-12 mm, and the high speed homogenizing wave wheels (2-4-5) are ratchet-shaped.
6. A control system of a wastewater treatment plant for subway engineering construction as claimed in claim 5, wherein said tank body (7-3) is of inverted frustum type at its bottom.
7. The control system of a wastewater treatment facility for subway engineering construction as claimed in claim 6, wherein the distance between two rack gears (1-6) is 15 cm-25 cm.
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