阅读说明：本技术 一种用于放射性废物处理的水泥固化系统及方法、应用 (Cement solidification system and method for radioactive waste treatment and application ) 是由 龚应伟 李振臣 谢广智 王小兵 杨兰菊 胡加良 刘文磊 王冲 刘辰龙 赵乾 于 2020-06-03 设计创作，主要内容包括：本发明公开了一种用于放射性废物处理的水泥固化系统及方法、应用,所述系统包括三轴轨道车、轨道、标尺检测系统、无线控制系统；三轴轨道车包括水平移动系统、竖直升降系统和旋转系统,水平移动系统、竖直升降系统和旋转系统分别包括运动减速机、升降减速机或旋转减速机,通过无线控制系统控制实现三轴轨道车在轨道上移动,以及实现三轴轨道车的升降和旋转；标尺检测系统用于实时检测三轴轨道车在轨道上的位置；无线控制系统用于接收标尺检测系统检测到的三轴轨道车的位置信息,根据检测到的位置信息判断是否开启运动减速机、升降减速机或旋转减速机。本发明解决了现有采用水泥固化线处理放射性废物导致的设备费用高、复杂、适用性不强问题。(The invention discloses a cement solidification system, a method and application for radioactive waste treatment, wherein the system comprises a three-axis rail car, a rail, a scale detection system and a wireless control system; the three-axis rail car comprises a horizontal moving system, a vertical lifting system and a rotating system, wherein the horizontal moving system, the vertical lifting system and the rotating system respectively comprise a motion speed reducer, a lifting speed reducer or a rotating speed reducer, and the three-axis rail car is controlled by a wireless control system to move on the rail and lift and rotate the three-axis rail car; the scale detection system is used for detecting the position of the three-axis rail car on the rail in real time; the wireless control system is used for receiving the position information of the triaxial railcar detected by the scale detection system and judging whether to start the motion speed reducer, the lifting speed reducer or the rotary speed reducer according to the detected position information. The invention solves the problems of high equipment cost, complexity and poor applicability caused by the adoption of a cement curing line to treat radioactive wastes in the prior art.)

1. A cement solidification system for radioactive waste treatment, characterized by comprising a three-axis rail car, a rail (13), a scale detection system, a wireless control system (14);

the three-axis railcar comprises a horizontal moving system, a vertical lifting system and a rotating system, wherein the horizontal moving system, the vertical lifting system and the rotating system respectively comprise a motion speed reducer (1), a lifting speed reducer (4) and a rotating speed reducer (9), and the motion speed reducer (1), the lifting speed reducer (4) and the rotating speed reducer (9) are controlled by a wireless control system (14) to realize the movement of the three-axis railcar on a track (13) and the lifting and the rotation of the three-axis railcar;

the scale detection system is used for detecting the position of the three-axis rail car on the rail (13) in real time;

the wireless control system comprises a control module, wherein the control module is used for receiving the position information of the triaxial railcar detected by the scale detection system and judging whether to start the motion speed reducer (1), the lifting speed reducer (4) or the rotary speed reducer (9) according to the detected position information.

2. A cement curing system for radioactive waste disposal according to claim 1 wherein the scale detection system comprises a grating (15) and a grating detection module associated with the grating (15), the grating (15) being mounted on the ground between the 2 tracks (13), the grating detection module being mounted on a three-axis rail car.

3. The cement solidification system for radioactive waste treatment of claim 1, further comprising a power system (16), the power system (16) powering the tri-axial railcar, the scale detection system, and the wireless control system (14).

4. The cement solidification system for radioactive waste treatment according to claim 1, characterized in that the horizontal movement system comprises a motion reducer (1), a transmission assembly (2) and a wheel train (3), the power output shaft of the motion reducer (1) being connected with the wheel train (3) through the transmission assembly (2);

the vertical lifting system comprises a lifting speed reducer (4), a turbine speed reducer (5), a lead screw (6) and a nut (7), wherein the lifting speed reducer (4) is arranged at the top of the movement speed reducer (1), a power output shaft of the lifting speed reducer (4) is connected with the lead screw (6) through the turbine speed reducer (5), and the nut (7) is sleeved on the lead screw (6);

the rotating system comprises a rotating speed reducer (9), an orientation assembly (10), a gear train (11) and a rotating assembly (12), wherein the rotating speed reducer (9) is arranged above the motion speed reducer (1) and is connected with a nut (7), and a power output shaft of the rotating speed reducer (9) enables the rotating assembly (12) to rotate around the orientation assembly (10) through the gear train (11).

5. The cement solidification system for radioactive waste treatment according to claim 4, wherein the vertical lifting system further comprises 2 guide rods (8) and a guide cross plate, the guide cross plate is arranged on the upper end face of the nut (7), a through hole for passing through the guide rods (8) is arranged on the guide cross plate, the guide rods (8) are arranged on the top of the motion reducer (1), and the rotation reducer (9) is connected with the guide cross plate.

6. A cement solidification system for radioactive waste treatment according to claim 5, characterized in that the top of the motion reducer (1) is provided with a horizontal mounting plate on which the lift reducer (4) and the guide bar (8) are arranged.

7. A cement solidification system for radioactive waste treatment according to claim 5, characterized in that the orientation assembly (10) is mounted on a guide cross plate at the bottom and connected with a gear train (11) at the top.

8. A cement solidification system for radioactive waste treatment according to claim 4, characterized in that the orientation assembly (10) comprises a guide sleeve and a rotary guide member, the gear train (11) comprising a pinion and a gearwheel in mesh with each other, the pinion being connected to the power take-off shaft of the rotary reducer (9), the gearwheel cooperating with the rotary assembly (12).

9. A method for setting a cement setting system for radioactive waste treatment according to any one of claims 1 to 8, comprising the steps of:

s1: installing a three-axis rail car, then placing the three-axis rail car in a track (13), and installing a curing barrel at the top of the three-axis rail car;

s2: setting parameters: inputting the position information of each process into a wireless control system (14);

s3: after the curing barrel is detected, a wireless control system (14) sends an instruction to start the motion reducer (1), the three-axis rail car moves forward on the track (13) under the drive of the motion reducer (1), the position of the three-axis rail car is monitored in real time by the scale detection system, and the monitored position information is sent to the wireless control system (14) through the wireless communication module;

s4: when the scale detection system detects that the position of the three-axis rail car is the same as the set position in the wireless control system (14), the wireless control system (14) sends an instruction to stop the movement speed reducer (1) to carry out corresponding process operation, and after the process operation is finished, the wireless control system (14) sends an instruction to start the movement speed reducer (1) to continue to advance until the next process.

10. Use of a cement solidification system for radioactive waste treatment according to any one of claims 1 to 8, wherein the cement solidification system is used in a cement solidification production process.

Technical Field

The invention relates to the field of radioactive waste treatment, in particular to a cement solidification system, a method and application for radioactive waste treatment.

Background

The radioactive cement solidification line is a production line system for treating radioactive wet waste, and the treated radioactive wet waste forms a uniform and stable cement solidified body.

The domestic current cement solidifies on-line solidification bucket uses the roll table transmission at present in country, include: 5 ~ 8 sets of straight line roll table, 1 ~ 2 sets of turn roll tables, 1 ~ 2 sets of rotatory roll tables, 1 ~ 2 sets of mechanical jacking equipment/or hydraulic pressure jacking roll table, 2 sets of positioning device, 2 sets of clamping equipment, 2 sets of bucket mechanisms that keep off, many sets of signal detection device and control system. The linear roller way is used for conveying the cement curing barrel; the turning roller way is used for turning and turning the cement curing barrel; the rotary roller way is used for the reciprocating rotation of the cement curing barrel at 0-360 degrees; the jacking equipment is used for vertically ascending or descending the cement curing barrel; the positioning equipment is used for secondary accurate positioning of the cement curing barrel; the clamping device is used for clamping the cement curing barrel, and position change of the cement curing barrel after positioning is prevented.

The process route of the existing cement curing line at home and abroad is as follows: placing the curing barrel on a starting roller way, starting a plurality of corresponding linear roller ways, turning roller ways or even rotating roller ways in a forward direction, conveying the curing barrel to a cap removing and sealing process position of the curing barrel, and executing a cap removing process of the curing barrel by a system; reversely starting a plurality of sets of corresponding linear roller ways, conveying the curing barrel to a dry material feeding process position, and executing a feeding process flow by the system; starting a plurality of corresponding linear roller ways reversely again, conveying the curing barrel to a wet material feeding process position, and performing a feeding/stirring process flow by the system (according to different process flow requirements, the sequence of the dry material feeding, wet material feeding and stirring processes is different); before executing the cement curing and stirring process, a curing barrel blocking process, a curing barrel positioning process and a curing barrel lifting process are also carried out; after cement solidification and stirring are completed, forming a cement solidified body, starting a plurality of sets of corresponding linear roller ways in a forward direction, conveying the cement solidified body to a cover taking process position, and performing a cement solidified body sealing process by a system; and starting a plurality of corresponding linear roller ways in the forward direction again, conveying the cement solidified body to a dose detection position, and executing a dose detection process of the cement solidified body by the system.

The electric control route of the existing cement curing line at home and abroad is as follows: and a fixed position detection point is arranged on the equipment on the cement curing line and is used for detecting the position of the curing barrel from the barrel to each linear roller way end, the angle position of a turning roller way, the angle position of a rotating roller way, the lifting position of the barrel, the clamping position of the barrel, the position of a dry material charging curing barrel, the position of a wet material charging curing barrel, the stirring position, the position of a transition area curing barrel and the like. The components and parts mainly adopt an off switch or a mechanical limit switch. And the component detection signal is transmitted to the control system through a cable to be controlled.

The roller way transmission curing barrel has the following defects:

(1) more traditional cement solidification on-line equipment and single function

In order to meet various process functions of a cement curing line, the traditional equipment on the cement curing line is basically provided with single-function equipment according to process requirements. Generally, a method for linearly conveying a curing barrel by a linear roller way, a method for steering the curing barrel by a turning roller way, a method for lifting the curing barrel by a lifting device, a method for positioning the curing barrel by a positioning device and the like are arranged on a traditional cement curing line. Generally, the traditional cement curing line has more equipment and single function, so that the investment cost is high. Meanwhile, related equipment on a cement curing line is developed for only 40 years, and 1 set of diversified multifunctional comprehensive equipment is not available up to now. The cement curing wireless control rail car and the rail technology are provided for solving the problems.

(2) The process coordination among the devices is complex, the coordination is poor and the installation difficulty is large

The radioactive cement solidified body is produced by a cement solidification line, and is a continuous motion and multiple process matching process, equipment on the cement solidification line consisting of multiple sets of equipment has the following prominent defects, 1) the solidification barrel is transmitted among linear roller beds, the electrical control is required to be added for ensuring, and the error control condition is difficult to avoid. 2) The motion direction of the curing barrel is changed by utilizing the rotary roller way, so that the precision of the motion direction is difficult to ensure. 3) When the curing barrel is positioned at the stirring station, station positioning accuracy errors can occur, and other large-scale equipment is easy to damage. 4) The requirement on the installation and matching precision between equipment groups is high, the difficulty in installing the equipment on site is high, and certain risks exist; 5) the installation equipment is required to be up to 20 sets, the installation precision is required to be adjusted repeatedly, and the construction period is long. 6) In the production process of the cement solidified body, the number of the on-line operation processes is more than 20, the operation flow is complex, and the error control is easy to cause accidents.

(3) Electric control system hardware is many

Because nearly 20 sets of equipment need be controlled to traditional cement curing line electric control system, and the position detection components and parts is nearly 30 sets as much, exposes corresponding shortcoming with it, 1) increase control cable and power cable quantity, project investment cost. 2) The number of control points of the system is large, and various logic controls, interlocking controls and programming are time-consuming and labor-consuming. 3) And the process position of the curing barrel on the cement curing line cannot be determined by adopting a point position detection device.

(4) Adapt to the process flow difference

The general implementation process of radioactive cement curing engineering project is that the radioactive material cement curing formula is firstly adopted, the process flow is fixed, and then a matched cement curing line is designed. When the cement curing formula is changed, the cement curing line system is difficult to be adapted to the technological process of various radioactive material cement formulas, and the system upgrading difficulty of the cement curing line system is huge.

Disclosure of Invention

The invention aims to provide a cement solidification system, a method and application for radioactive waste treatment, and solves the problems of high equipment cost, complexity and poor applicability caused by the adoption of a cement solidification line to treat radioactive waste.

The invention is realized by the following technical scheme:

a cement solidification system for radioactive waste treatment comprises a three-axis rail car, a rail, a scale detection system and a wireless control system;

the three-axis rail car comprises a horizontal moving system, a vertical lifting system and a rotating system, wherein the horizontal moving system, the vertical lifting system and the rotating system respectively comprise a motion speed reducer, a lifting speed reducer and a rotating speed reducer;

the scale detection system is used for detecting the position of the three-axis rail car on the rail in real time;

the wireless control system comprises a control module, wherein the control module is used for receiving the position information of the triaxial railcar detected by the scale detection system and judging whether to start the motion speed reducer, the lifting speed reducer or the rotary speed reducer according to the detected position information.

The wireless control system comprises a motor primary loop, a motor secondary loop, a device-level field control system unit (a control module, wherein the control module comprises a position detection unit), a wireless transmitting unit and a receiving unit (a wireless communication module); the triaxial railcar is under wireless control system's control, 6 kinds of process motion modes such as solidification bucket forward motion, reverse motion, rising motion, descending motion, forward rotation, reverse rotation that can realize, scale detecting system can detect the position of output solidification bucket in succession, and after the teletransmission arrived main control room display screen, solidification bucket operation picture is more directly perceived, and control does not have the blind spot completely.

The invention has the following advantages:

1) only 1 set of cement curing wireless control railcar and related technologies can replace 10-20 sets of traditional equipment sets, so that the investment cost of engineering projects is obviously reduced, and the radioactive waste disposal cost is further reduced; 2) the process compatibility of the traditional equipment group is required to be considered in engineering application, and the radioactive waste treatment wireless control cement solidification track method is not required to be considered; 3) the field installation of the traditional equipment group on the cement curing line is complex, the requirement on the installation technical parameters is high, the installation of the radioactive waste treatment wireless control cement curing line track technology is simple, and the problem of high requirement on the installation technical parameters is solved; 4) the radioactive waste treatment wireless control cement curing line track technology meets the forming process of various cement curing formulas without upgrading a cement curing line system; 5) the wireless control system, the scale detection system and the power supply system are adopted, the hardware and software of the electrical control system are simplified and reduced, a power cable and a control cable from a site to a control room are not required to be arranged, the position of the curing barrel can be continuously detected, the system is better in visualization, and the operation flow of the cement curing line is simpler and more reliable.

The wireless control system and the ruler detection system are arranged according to the characteristics of the three-axis rail car in a matched mode and are respectively used for controlling the three-axis rail car to move forward or backward, ascend or descend and rotate (rotate forwards or reversely), and the position of the three-axis rail car on the rail is detected.

In conclusion, the invention is characterized in that the horizontal moving system, the vertical lifting system and the rotating system are arranged on the three-axis rail car at the same time, and are respectively used for realizing the advancing or retreating of the three-axis rail car in the horizontal direction, the ascending and descending of the rotating system in the vertical direction and the rotation of the rotating assembly, so that the invention integrates multiple functions, has no problem of higher requirement on functional matching among traditional single equipment, can replace equipment groups of traditional cement curing lines, has no power cable and control cable from the site to a main control room, reduces the investment cost of engineering projects, adopts a wireless control mode, makes an electrical control system more reasonable, has a simpler operating system, and can meet the technological process formed by multiple cement curing formulas.

Further, scale detecting system includes the grating and with the supporting grating detection module of grating, the grating is installed on 2 tracks between subaerial, grating detection module installs on the triaxial railcar.

Functional description of raster technology (prior art): presetting positioning information of a three-axis rail car in a wireless control system according to the process requirement; a grating detection module in the scale detection system detects the position of a grating, and the output signal of the grating detection module is transmitted to a wireless control system for processing; after the treatment, the three-axis rail car can move and be positioned (horizontally moved) at any position on the track, (namely, the distance between the position of each process and the initial position, for example, the distance between a feeding station and the initial position is 1 m, 1 m of parameters are input into the wireless control system, when the three-axis rail car moves, the moving distance of the car is detected by the grating detection module in real time, and when the moving distance is 1 m, the wireless control system controls the three-axis rail car to stop moving forwards).

The lifting height of the lifting speed reducer can also be realized by adopting a grating technology, the lifting height of the lifting speed reducer is set in a control system, a grating is arranged at the end of a motor of the lifting speed reducer to be matched, and when the grating detection module detects that the lifting height of the lifting speed reducer is the same as a set value, the lifting speed reducer is driven to stop working.

The rotation position of the three-axis rail car can also be realized by adopting a grating technology, and the grating is matched and arranged at the tail end of a motor of a rotary speed reducer.

Further, still include electrical power generating system, electrical power generating system is for triaxial railcar, scale detection system and wireless control system power supply.

Specifically, the power supply system comprises a storage battery, a power supply controller and an AC220V charging interface.

Further, the horizontal movement system comprises a motion speed reducer, a transmission assembly and a wheel train, wherein a power output shaft of the motion speed reducer is connected with the wheel train through the transmission assembly;

the vertical lifting system comprises a lifting speed reducer, a turbine speed reducer, a lead screw and a nut, wherein the lifting speed reducer is arranged at the top of the motion speed reducer, a power output shaft of the lifting speed reducer is connected with the lead screw through the turbine speed reducer, and the nut is sleeved on the lead screw;

the rotating system comprises a rotating speed reducer, an orientation assembly, a gear train and a rotating assembly, wherein the rotating speed reducer is arranged above the motion speed reducer and connected with a nut, and a power output shaft of the rotating speed reducer enables the rotating assembly to rotate around the orientation assembly through the gear train.

Further, vertical operating system still includes 2 guide bars and direction diaphragm, the direction diaphragm sets up the up end at the nut, set up the through-hole that is used for passing the guide bar on the direction diaphragm, the guide bar sets up at the motion speed reducer top, rotatory speed reducer is connected with the direction diaphragm.

Further, the top of motion speed reducer is provided with horizontal installation board, lift speed reducer and guide bar set up on horizontal installation board.

Further, the bottom of the orientation assembly is mounted on the guide cross plate and the top is connected with the gear train.

Further, the wheel train comprises 4 wheels, which wheels cooperate with a rail on the ground.

Furthermore, the bottom of the orientation assembly is installed on the guide transverse plate, the top of the orientation assembly is connected with a gear train, the gear train comprises a small gear and a large gear which are meshed with each other, the small gear is connected with a power output shaft of the rotary speed reducer, and the large gear is matched with the rotation assembly.

A curing method based on a cement curing system for radioactive waste treatment, comprising the following steps:

s1: installing a three-axis rail car, then placing the three-axis rail car in a track, and installing a curing barrel at the top of the three-axis rail car;

s2: setting parameters: inputting the position information of each process into a wireless control system;

s3: after the curing barrel is detected, the wireless control system sends an instruction to start the movement speed reducer, the three-axis rail car moves forward on the rail under the driving of the movement speed reducer, the scale detection system monitors the position of the three-axis rail car in real time, and the monitored position information is sent to the wireless control system through the wireless communication module;

s4: when the scale detection system detects that the position of the three-axis rail car is the same as the set position in the wireless control system, the wireless control system sends an instruction to stop the motion reducer to carry out corresponding process operation, and after the process operation is finished, the wireless control system sends an instruction to start the motion reducer to continue to advance until the next process.

The curing method can be suitable for different cement curing lines, and can be realized by modifying the parameter setting of the wireless control system, namely modifying the parameter of the wireless control system into the parameter under the corresponding process condition; complex operations such as replacing equipment of a traditional system are not needed, a set of three-axis rail car replaces multiple traditional equipment, application of a flexible cement curing production process flow which is suitable for multiple formulas of radioactive materials is achieved, and the application can be extended to factory transportation of cement curing products). 2) The traditional special automobile special for personnel driving transports radioactive products, personnel are easily irradiated by radioactivity, and once transport traffic accidents happen, the radioactive products are easily upgraded to the transport traffic accidents, so that the radioactive products are extremely harmful to the society.

The application of the cement solidification system for radioactive waste treatment is to apply the cement solidification system to a cement solidification production process.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the invention is characterized in that a horizontal moving system, a vertical lifting system and a rotating system are arranged on the three-axis rail car at the same time, and are respectively used for realizing the forward or backward movement of the three-axis rail car in the horizontal direction, the ascending and descending of the rotating system in the vertical direction and the rotation of the rotating component, thereby integrating multiple functions into a whole, having no problem of higher requirement on functional matching among traditional single equipment, replacing the equipment group of the traditional cement curing line, having no power cable and control cable from the site to a main control room, reducing the investment cost of engineering projects, and adopting a wireless control mode to ensure that an electrical control system is more reasonable, an operating system is simpler, and the process flow formed by multiple cement curing formulas can be met.

2. The three-axis railcar can be adaptively adjusted according to the technical requirements of the process, and is simple and convenient to operate; simple installation, short construction period and no need of considering the installation and matching problem between equipment

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of a three-axis rail car.

FIG. 2 is a top view of a cement curing system.

Reference numbers and corresponding part names in the drawings:

1-a motion speed reducer, 2-a transmission assembly, 3-a wheel train, 4-a lifting speed reducer, 5-a turbine speed reducer, 6-a screw rod, 7-a nut, 8-a guide rod, 9-a rotary speed reducer, 10-an orientation assembly, 11-a gear train, 12-a rotary assembly, 13-a track, 14-a wireless control system, 15-a grating and 16-a power supply system.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.