阅读说明：本技术 一种乳化沥青乳浆制造及路面纵向冷接缝乳浆灌注方法 (Emulsified asphalt emulsion manufacturing and pavement longitudinal cold joint emulsion pouring method ) 是由 俄广迅 董昭 姜海龙 王娜 朱世超 夏建平 朱振祥 杨飞 柳久伟 李宁 韦金城 于 2020-11-13 设计创作，主要内容包括：本发明公开了一种乳化沥青乳浆制造及路面纵向冷接缝乳浆灌注方法,属于公路筑路中道路接缝灌缝领域,本发明要解决的技术问题为如何能够快速精确完成冷态接缝拼接处的浆体灌注,提高接缝质量,采用的技术方案为：该方法具体如下：S1、将需要的水泥和乳化沥青加入至乳浆加工装置中；S2、打开动力及发电装置,待动力及发电装置运行稳定后,打开乳浆加工装置,乳浆加工装置按照慢-中-快的搅拌方式完成乳浆的拌合,并保持持续的慢速搅拌状态；S3、打开控制系统,车辆行走和出浆由一人控制,此人打开行走装置；另一人控制乳浆灌注装置,此人将灌注杆组件对准接缝处,同时打开引流组件,浆体通过软导管导入灌注杆组件的注浆头中。(The invention discloses a method for manufacturing emulsified asphalt emulsion and pouring the emulsion of a longitudinal cold joint of a pavement, belonging to the field of joint pouring of roads in road building, aiming at solving the technical problem of how to quickly and accurately finish the slurry pouring of a cold joint splicing part and improve the joint quality, and adopting the technical scheme that: the method comprises the following specific steps: s1, adding the required cement and emulsified asphalt into a milk processing device; s2, turning on the power and power generation device, turning on the milk processing device after the power and power generation device runs stably, completing the mixing of milk by the milk processing device according to a slow-medium-fast stirring mode, and keeping a continuous slow stirring state; s3, opening a control system, wherein the vehicle walking and the slurry discharging are controlled by one person, and the person opens a walking device; another person controls the milk infusion device, who aligns the infusion rod assembly at the seam, while the drainage assembly is opened and the slurry is introduced into the infusion head of the infusion rod assembly through the flexible conduit.)

1. The method for manufacturing the emulsified asphalt emulsion and pouring the emulsion in the longitudinal cold joint of the pavement is characterized by comprising the following steps of:

s1, adding the required cement and emulsified asphalt into a milk processing device;

s2, turning on the power and power generation device, turning on the milk processing device after the power and power generation device runs stably, completing the mixing of milk by the milk processing device according to a slow-medium-fast stirring mode, and keeping a continuous slow stirring state;

s3, opening a control system, wherein the vehicle walking and the slurry discharging are controlled by one person, and the person opens a walking device; another person controls a milk perfusion device, the milk perfusion device comprises a drainage component and a perfusion rod component, the person aligns the perfusion rod component at the joint, simultaneously opens the drainage component, and slurry is guided into a grouting head of the perfusion rod component through a soft catheter;

s4, the grouting head comprises a main soil breaking push block, a grouting spout, a jack rod, a jack conical head and a flat plate, the main soil breaking push block pushes loose materials at the joint higher than the surface of the joint open to expose the joint, the jack rod is inserted into the joint through the jack conical head to cut the joint to a set depth so as to ensure the grouting saturation and the permeation direction of the grouting from the grouting spout, and after the grouting is finished, holes left after grouting are covered through the flat plate to reduce manual treatment and finally finish the grouting;

and S5, after grouting, carefully cleaning the milk processing device and the milk filling device to prevent pipelines from being blocked in next use.

2. The method for manufacturing emulsified asphalt emulsion slurry and pouring the emulsion slurry into the longitudinal cold joint of the pavement according to claim 1, wherein a frame is arranged below the emulsion slurry processing device, and the power and power generation device, the emulsion slurry processing device and the emulsion slurry pouring device are sequentially arranged on the lower side surface of the frame, and the emulsion slurry pouring device is communicated with the emulsion slurry processing device;

one end of the frame is provided with a cantilever, one end of the cantilever is hinged with the frame, and the other end of the cantilever can be detachably connected with a milk perfusion device.

3. The method for manufacturing emulsified asphalt emulsion and pouring the emulsion in the longitudinal cold joint of pavement according to claim 1, wherein the pouring rod assembly comprises a sleeve and a pouring head, an upper rod body is connected in the sleeve, a handle is arranged at the upper end of the upper rod body, and the handle is in an inverted U shape; the lower end of the upper rod body is provided with a lower rod body adopting a hollow structure, a soft conduit penetrating through the lower rod body is arranged in the lower rod body, one end of the soft conduit is communicated with the drainage component, the other end of the soft conduit is communicated with the grouting head, and the grouting head is positioned on the lower end face of the lower rod body.

4. The method for manufacturing emulsified asphalt emulsion and pouring the emulsion on the longitudinal cold joint of the pavement according to claim 1, wherein the ground breaking cone block is arranged on the side wall of the lower rod body, the emulsion nozzle is arranged at the center of the ground breaking cone block, and the soft conduit extends to the emulsion nozzle; one side of the ground breaking vertebral body block is provided with a jack rod, and the lower end of the jack rod is provided with a jack conical head; the other side of the ground breaking vertebral body block is provided with a material leveling plate which is obliquely arranged.

5. The method for manufacturing emulsified asphalt emulsion and pouring the emulsion of the longitudinal cold joint of the pavement according to claim 1, wherein the drainage assembly comprises a drainage tube, a variable frequency pump and an electromagnetic flowmeter, one end of the drainage tube is communicated with the emulsion processing device, the other end of the drainage tube is communicated with a drainage pump, and the drainage pump is communicated with the flexible conduit through the electromagnetic flowmeter.

6. The emulsified asphalt emulsion slurry manufacturing and pavement longitudinal cold joint emulsion slurry pouring method according to any one of claims 1-5, wherein the emulsion slurry processing device comprises a stirring box, a stirring shaft is arranged in the stirring box, and a plurality of stirring blades are arranged on the stirring shaft; the upper side surface of the box is provided with a motor which is in running fit with the stirring shaft.

7. The method for manufacturing emulsified asphalt emulsion and pouring the longitudinal cold joint emulsion of the pavement according to claim 6, wherein the stirring blades are in a herringbone shape, and saw teeth are arranged at the edges of the herringbone stirring blades; and (4) stirring.

8. The method for manufacturing emulsified asphalt emulsion slurry and pouring the emulsion slurry of the longitudinal cold joint on the pavement according to claim 1, wherein the walking device is disposed on the lower side of the frame, the walking device comprises a driving wheel set, a frequency modulation motor and a driven wheel set, the frequency modulation motor is mounted on the driving wheel set, and the driving wheel set and the driven wheel set are disposed in parallel and are respectively located on the lower side of the frame.

9. The method for manufacturing emulsified asphalt emulsion slurry and pouring the emulsion slurry into the longitudinal cold joint of the pavement according to claim 1, wherein the power and power generation device comprises a diesel engine, an oil tank and a generator, the oil tank is positioned below the diesel engine and communicated with the diesel generator, the generator is positioned below the oil tank, and the diesel engine drives the generator to generate power to provide power for the emulsion slurry processing device and the walking device.

10. The emulsified asphalt emulsion slurry manufacturing and pavement longitudinal cold joint emulsion slurry pouring method according to claim 8 or 9, wherein the control system comprises a control box, the control box is arranged at one side of the stirring box, a control computer is arranged in the control box, an operation panel is arranged on the outer side surface of the control box, and a steering wheel is arranged on the operation panel; the lower end of the control box is provided with a stand column, one end of the stand column is fixedly connected with the control box, and the other end of the stand column is fixedly connected with the frame.

Technical Field

The invention relates to the field of road joint grouting in road construction, in particular to a method for manufacturing emulsified asphalt emulsion and grouting longitudinal cold joint emulsion of a pavement.

Background

Along with the gradual increase of road reconstruction and expansion technologies in recent years, longitudinal lap joints of new and old road structures are more and more, and mainly relates to lap joints of new and old cement stabilized base layers, lap joints of old cement stabilized base layers and asphalt cold recycled materials and lap joints of old asphalt pavements and asphalt cold recycled materials. However, in the existing pavement design, a special design and special equipment for splicing are not provided. In the design of a road structure, the integrity of the road structure layer is guaranteed to be the key for guaranteeing the service life of the road, the road splicing in the reconstruction and extension is easy to generate large longitudinal incompleteness, and if the integrity of the road is not guaranteed by a good splicing technology, the road is easy to generate large longitudinal cracks in the service life, so that the service life of the road is influenced.

Therefore, how to rapidly and accurately complete slurry filling at the cold joint splicing part and improve the joint quality is a problem to be solved urgently at present.

Disclosure of Invention

The invention aims to provide a method for manufacturing emulsified asphalt emulsion and pouring the emulsion of a longitudinal cold joint of a pavement, which solves the problems of how to quickly and accurately finish the slurry pouring at the joint of the cold joint and improve the quality of the joint.

The technical task of the invention is realized by the following method, namely a method for manufacturing emulsified asphalt emulsion and pouring the emulsion of a longitudinal cold joint of a pavement, which comprises the following steps:

s1, adding the required cement and emulsified asphalt into a milk processing device;

s2, turning on the power and power generation device, turning on the milk processing device after the power and power generation device runs stably, completing the mixing of milk by the milk processing device according to a slow-medium-fast stirring mode, and keeping a continuous slow stirring state;

s3, opening a control system, wherein the vehicle walking and the slurry discharging are controlled by one person, and the person opens a walking device; another person controls a milk perfusion device, the milk perfusion device comprises a drainage component and a perfusion rod component, the person aligns the perfusion rod component at the joint, simultaneously opens the drainage component, and slurry is guided into a grouting head of the perfusion rod component through a soft catheter;

s4, the grouting head comprises a main soil breaking push block, a grouting spout, a jack rod, a jack conical head and a flat plate, the main soil breaking push block pushes loose materials at the joint higher than the surface of the joint open to expose the joint, the jack rod is inserted into the joint through the jack conical head to cut the joint to a set depth so as to ensure the grouting saturation and the permeation direction of the grouting from the grouting spout, and after the grouting is finished, holes left after grouting are covered through the flat plate to reduce manual treatment and finally finish the grouting;

and S5, after grouting, carefully cleaning the milk processing device and the milk filling device to prevent pipelines from being blocked in next use.

Preferably, a frame is arranged below the milk processing device, the power and power generation device, the milk processing device and the milk filling device are sequentially arranged on the lower side surface of the frame, and the milk filling device is communicated with the milk processing device;

one end of the frame is provided with a cantilever, one end of the cantilever is hinged with the frame, and the other end of the cantilever can be detachably connected with a milk perfusion device.

Preferably, the perfusion rod assembly comprises a sleeve and a grouting head, an upper rod body is connected in the sleeve in an sleeved mode, a handle is arranged at the upper end of the upper rod body, and the handle is in an inverted U shape; the lower end of the upper rod body is provided with a lower rod body adopting a hollow structure, a soft conduit penetrating through the lower rod body is arranged in the lower rod body, one end of the soft conduit is communicated with the drainage component, the other end of the soft conduit is communicated with the grouting head, and the grouting head is positioned on the lower end face of the lower rod body.

Preferably, the ground breaking cone block is arranged on the side wall of the lower rod body, a milk slurry nozzle is arranged at the center of the ground breaking cone block, and the soft conduit extends to the milk slurry nozzle; one side of the ground breaking vertebral body block is provided with a jack rod, and the lower end of the jack rod is provided with a jack conical head; the other side of the ground breaking vertebral body block is provided with a material leveling plate which is obliquely arranged.

Preferably, the drainage assembly comprises a drainage tube, a variable frequency pump and an electromagnetic flowmeter, one end of the drainage tube is communicated with the whey processing device, the other end of the drainage tube is communicated with the drainage pump, and the drainage pump is communicated with the flexible catheter through the electromagnetic flowmeter.

Preferably, the milk processing device comprises a stirring box, wherein a stirring shaft is arranged in the stirring box, and a plurality of stirring blades are arranged on the stirring shaft; the upper side surface of the box is provided with a motor which is in running fit with the stirring shaft.

Preferably, the stirring blades are in a herringbone shape, and sawteeth are arranged at the edges of the herringbone stirring blades; stirring the mixture

Preferably, running gear sets up at the frame downside, and running gear includes drive wheelset, frequency modulation motor and driven wheelset, and frequency modulation motor installs on drive wheelset, and drive wheelset and driven wheelset parallel arrangement just are located the frame downside respectively.

Preferably, the power and power generation device comprises a diesel engine, an oil tank and a generator, wherein the oil tank is positioned below the diesel engine and communicated with the diesel generator, the generator is positioned below the oil tank, and the diesel engine drives the generator to generate power to provide power for the milk processing device and the walking device.

Preferably, the control system comprises a control box, the control box is arranged at one side of the stirring box, a control computer is arranged in the control box, an operation panel is arranged on the outer side surface of the control box, and a steering wheel is arranged on the operation panel; the lower end of the control box is provided with a stand column, one end of the stand column is fixedly connected with the control box, and the other end of the stand column is fixedly connected with the frame.

The emulsified asphalt emulsion manufacturing and pavement longitudinal cold joint emulsion pouring method has the following advantages:

the invention can realize the rapid and accurate completion of slurry filling at the cold joint splicing part, ensure the standardization of the slurry manufacturing, reduce the segregation and the sealing, improve the slurry making efficiency, simultaneously can strictly control the slurry injection amount of the road, ensure that the slurry can be filled to the bottom of the structural layer and ensure the bonding performance in the future;

the cold-state splicing method is mainly used for cold-state splicing between new and old cement-stabilized macadam, asphalt cold recycling and old cement-stabilized macadam or old asphalt pavement in road reconstruction and expansion, can realize effective bonding of materials, improves the integrity of the road, and has important significance for prolonging the service life of the road;

the invention has high automation degree, can realize self-walking and transfer at any time, and has wide application range;

aiming at the characteristics of the emulsified slurry prepared by mixing emulsified asphalt and cement, the herringbone stirring blade is adopted, and the sawteeth are arranged at the edge of the stirring blade so as to increase the shearing action of stirring, so that the cement can be uniformly scattered in the shortest time, the stirring efficiency of powder is effectively improved, and the pulping is more uniform and efficient;

the intelligent control of the slurry filling is realized, and the joint control of a variable frequency pump and an electromagnetic flowmeter is adopted to ensure the plumpness of the grouting;

the perfusion rod assembly can flexibly rotate in a certain range, can be operated by a single person, and can move according to the perfusion part;

and (seventhly), according to the characteristics of a grouting part (one side is a hard old pavement structure, and the other side is a soft new paving material), the grouting head of the grouting rod assembly realizes the functions of material stirring, hole inserting, grouting and material leveling, and ensures the grouting quantity and the grouting depth of the grouting slurry.

The invention has the characteristics of reasonable design, simple structure, easy processing, small volume, convenient use, multiple purposes and the like, thereby having good popularization and use values.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of an emulsified asphalt emulsion manufacturing and pavement longitudinal cold joint emulsion filling device;

FIG. 2 is a view taken along line A of FIG. 1;

FIG. 3 is a view taken along line B of FIG. 1;

FIG. 4 is a schematic view of the fill rod assembly;

fig. 5 is a view along C of fig. 4.

In the figure: 1. the device comprises a frame, 2, a cantilever, 3, a movable hinge, 4, a pin shaft, 5, a sleeve, 6, an upper rod body, 7, a handle, 8, a lower rod body, 9, a flexible conduit, 10, a grouting head, 11, a soil breaking vertebral body block, 12, a grouting nozzle, 13, a jack rod, 14, a jack conical head, 15, a material flattening plate, 16, a drainage tube, 17, a variable frequency pump, 18, an electromagnetic flowmeter, 19, a stirring box, 20, a stirring shaft, 21, a stirring blade, 22, a motor, 23, a sawtooth, 24, a driving wheel set, 25, a frequency modulation motor, 26, a driven wheel set, 27, a diesel engine, 28, an oil tank, 29, a generator, 30, a control box, 31, an operation panel, 32, a steering wheel, 33, a stand column, 34 and a control computer.

Detailed Description

The method for manufacturing emulsified asphalt emulsion and pouring the emulsion into the longitudinal cold joint of a pavement according to the invention is described in detail with reference to the drawings and the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

the invention discloses a method for manufacturing emulsified asphalt emulsion and pouring the emulsion of a longitudinal cold joint of a pavement, which comprises the following steps:

s1, adding the required cement and emulsified asphalt into a milk processing device;

s2, turning on the power and power generation device, turning on the milk processing device after the power and power generation device runs stably, completing the mixing of milk by the milk processing device according to a slow-medium-fast stirring mode, and keeping a continuous slow stirring state;

s3, opening a control system, wherein the vehicle walking and the slurry discharging are controlled by one person, and the person opens a walking device; another person controls a milk infusion device, the milk infusion device comprising a drainage assembly and an infusion rod assembly, the person aligns the infusion rod assembly at the seam and opens the drainage assembly, and the slurry is introduced into the grouting head 10 of the infusion rod assembly through a flexible catheter;

s4, the grouting head 10 comprises a main soil breaking push block 11, a milk slurry nozzle 12, a jack rod 13, a jack conical head 14 and a flat material plate 15, the main soil breaking push block 11 pushes loose materials at the joint higher than the surface of the joint open to expose the joint, the jack rod 13 is inserted into the joint through the jack conical head 14 to cut the joint to a set depth to ensure the grouting saturation and permeation direction of milk slurry from the milk slurry nozzle 12, and after the slurry is completely grouted, holes left after grouting are covered by the flat material plate 15, so that manual treatment is reduced, and finally, the milk slurry is grouted;

and S5, after grouting, carefully cleaning the milk processing device and the milk filling device to prevent pipelines from being blocked in next use.

As shown in the attached drawings 1, 2 and 3, the walking device is arranged on the lower side surface of the frame 1, and the power and power generation device, the milk processing device and the milk perfusion device are sequentially arranged on the upper side surface of the frame 1 from left to right; the milk perfusion device is communicated with the milk processing device. Cantilever 2 is installed to the one end of frame 1, and the one end of cantilever 2 is connected through activity hinge 3 is articulated with frame 1, and the other end of cantilever 2 can dismantle through round pin axle 4 and connect the breast milk perfusion device.

The milk filling device in this embodiment includes drainage subassembly and perfusion rod subassembly, and drainage subassembly one end is linked together with milk processingequipment, and the drainage subassembly other end is linked together with the perfusion rod subassembly.

The grouting rod assembly in the embodiment comprises a sleeve 5 and a grouting head 10, wherein an upper rod body 6 is connected in the sleeve 5 in an sleeved mode, a handle 7 is installed at the upper end of the upper rod body 6, and the handle 7 is in an inverted U shape; the lower end of the upper rod body 6 is provided with a lower rod body 8 adopting a hollow structure, a soft conduit 9 penetrating through the lower rod body 8 is arranged in the lower rod body 8, one end of the soft conduit 9 is communicated with the drainage component, the other end of the soft conduit 9 is communicated with a grouting head 10, and the grouting head 10 is positioned on the lower end face of the lower rod body 8. Wherein, go up body of rod 6 or lower body of rod 8 through jackscrew fixed connection sleeve 5, through the position of jackscrew restriction body of rod 6 or lower body of rod 8. As shown in fig. 4 and 5, the grouting head 10 comprises a ground breaking vertebral block 11, the ground breaking vertebral block 11 is installed on the side wall of the lower rod body 8, a milk slurry nozzle 12 is installed at the center of the ground breaking vertebral block 11, and the soft conduit 9 extends to the milk slurry nozzle 12; one side of the ground breaking vertebral block 11 is provided with a jack rod 13, and the lower end of the jack rod 13 is provided with a jack conical head 14; and a material leveling plate 15 is arranged on the other side of the ground breaking vertebral body block 11, and the material leveling plate 15 is obliquely arranged. The main push block 11 for breaking the soil can be used for poking loose materials at the joint position higher than the surface of the joint to expose the position of the joint, the jack rod 13 is inserted into the joint through the jack conical head 14 to scratch the joint by a certain depth so as to ensure the grouting saturation and the penetration direction from the grouting nozzle 12, and after the grouting of the grout is completed, holes left after grouting are covered through the material flattening plate 15, so that the manual treatment is reduced.

The drainage assembly in the embodiment comprises a drainage tube 16, a variable frequency pump 17 and an electromagnetic flowmeter 18, wherein one end of the drainage tube 16 is communicated with the milk processing device, the other end of the drainage tube 16 is communicated with the variable frequency pump 17, and the variable frequency pump 17 is communicated with the flexible conduit 9 through the electromagnetic flowmeter 18. The variable frequency pump 17 is communicated with a milk processing device through a drainage tube 16 and then is connected with an electromagnetic flowmeter 18 through a flexible conduit 9, and the electromagnetic flowmeter 18 directly conveys the milk to the grouting head 10 through the lower rod body 8 by the flexible conduit 9.

The milk processing device in the embodiment comprises a stirring box 19, wherein a stirring shaft 20 is arranged in the stirring box 19, and a plurality of stirring blades 21 are arranged on the stirring shaft 20; the upper side surface of the stirring box 19 is provided with a motor 22, and the motor 22 is rotationally matched with the stirring shaft 20. The stirring blades 21 are in a herringbone shape, and saw teeth 23 are arranged at the edges of the herringbone stirring blades 21 to increase the shearing action of stirring. The milk processing device can process 200kg-500kg of slurry. The electric motor 22 is equipped with a three-speed gearbox to accommodate different torque requirements. Wherein, the rotation speed of the stirring blade 21 is divided into a fast speed, a medium speed and a slow speed, the fast stirring speed is 65r/min, the medium stirring speed is 30r/min, and the slow stirring speed is 10 r/min. The stirring process of the emulsified asphalt emulsion is as follows:

firstly, after all raw materials are added into a processing stirring box 19, a motor is started;

secondly, stirring for 1min at a slow speed by a stirring blade 21, then stirring for 1min at a medium speed, and then stirring for 2min at a fast speed to fully disperse the powder;

thirdly, after the slurry is stirred, the stirring shaft 20 drives the stirring blades 21 to continuously rotate at a low speed so as to prevent the material from being separated and influence the grouting quality.

The walking device in this embodiment comprises a driving wheel set 24, a frequency modulation motor 25 and a driven wheel set 26, wherein the frequency modulation motor 25 is installed on the driving wheel set 24, and the driving wheel set 24 and the driven wheel set 26 are arranged in parallel and are respectively located on the lower side surface of the frame 1. The driving wheel set 24 is installed on the hydraulic steering device, can realize the steering of left and right 45 degrees, and the hydraulic steering device adopts the same structure with the automobile steering component, can make the utility model discloses a frame 1 realizes turning round.

The power and power generation device in the embodiment comprises a diesel engine 27, an oil tank 28 and a generator 29, wherein the oil tank 28 is positioned below the diesel engine 27 and communicated with the diesel generator 27, the generator 29 is positioned below the oil tank 28, and the diesel engine 27 drives the generator 29 to generate power to provide power for the milk processing device and the walking device.

In this embodiment, a control system is installed on one side of the stirring box, the control system includes a control box 30, a control computer 34 is installed in the control box 30, an operation panel 31 is installed on the outer side surface of the control box 30, and a steering wheel 32 is installed on the operation panel 31. The lower end of the control box 30 is provided with a vertical column 33, one end of the vertical column 33 is fixedly connected with the control box 30, and the other end of the vertical column 33 is fixedly connected with the frame 1. The control box 30 can control the utility model to run in a fast and slow mode, the fast speed is 5-6km/h, and the slow speed is 3km/h at uniform speed. The control computer 34 can set the pumping flow rate of the variable frequency pump 17, and the flow rate data of the pumped slurry is transmitted to the control computer 34 through the electromagnetic flowmeter 18.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.