CN108189208A - A kind of prefabricated case beam automatic spray curing means - Google Patents
A kind of prefabricated case beam automatic spray curing means Download PDFInfo
- Publication number
- CN108189208A CN108189208A CN201810102359.8A CN201810102359A CN108189208A CN 108189208 A CN108189208 A CN 108189208A CN 201810102359 A CN201810102359 A CN 201810102359A CN 108189208 A CN108189208 A CN 108189208A
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- Prior art keywords
- contact
- relay
- switch
- automatic spray
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Spray Control Apparatus (AREA)
Abstract
The present invention relates to prefabricated case beam technical fields, disclose a kind of prefabricated case beam automatic spray curing means.Including automatic spray distribution box and Automatic-boosting pump assembly, Automatic-boosting pump assembly includes Automatic-boosting pump assembly distribution box, water pump and stable-pressure device, Automatic-boosting pump assembly distribution box includes the frequency converter for adjusting pump motor rotating speed, frequency converter is connect with water pump, water pump input terminal is connected with water inlet pipe, and water inlet pipe is connected with external water source；Water pump output terminal is connected with outlet pipe, and outlet pipe includes several branches, and each road is equipped with solenoid valve, the automatic spray control loop for controlling electromagnetic valve work is equipped in automatic spray distribution box.The present invention can realize automatic spray.Automatic spray terminates from supplying water to spray, basic to realize automation, greatly reduces labor intensity, improves productivity, reduce cost, ensure that the intensity and quality of beam slab.Reduce originally water consumption simultaneously, save production cost.
Description
Technical field
The present invention relates to prefabricated case beam technical field more particularly to the setting of a kind of prefabricated case beam automatic spray curing means
Meter.
Background technology
Will sprinkle water maintenance in time after usual precast beam form removal, it is ensured that beam slab intensity reaches design requirement；General beam slab is supported
There are three types of modes for shield：First, manually control valve；Second is that control electrically operated valve with multiple microcomputer time-controlled switchs；Third, it uses
Microcomputer time-controlled switch controls water pump (22).Operation is cumbersome and easily mistakes, and takes time and effort；Scale of precast yard is got at present
Come it is bigger, most beam fields beam making bench up to tens it is necessary to be operated with tens microcomputer time-controlled switchs, if it is multiple micro-
During the same time service of computer time switch, water spray tap while the situation for causing hydraulic pressure inadequate too much held can be generated, most
Cause monoblock beam slab spray not in place eventually.
Invention content
The present invention provides a kind of prefabricated case beam automatic spray maintenance dress for the shortcomings that not in place is sprayed in the prior art
It puts.
The present invention solves the problems, such as that spray is not in place, and present design devises automatic spray control loop, substantially in fact
It now automates, greatly reduces labor intensity, improve productivity, reduce cost, ensure that the intensity and quality of beam slab.Together
When entire precasting yard fire hydrant water, clean place water be all variable frequency pump supply water, be considerably reduced tap water in this way
Dosage has saved production cost.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：
A kind of prefabricated case beam automatic spray curing means, including automatic spray distribution box and Automatic-boosting pump assembly, automatically
It is pressurized pump assembly and includes Automatic-boosting pump assembly distribution box, water pump and stable-pressure device, Automatic-boosting pump assembly distribution box includes using
In the frequency converter for adjusting pump motor rotating speed, frequency converter connect with water pump, and water pump input terminal is connected with water inlet pipe, water inlet pipe and outside
Portion water source connects；Water pump output terminal is connected with outlet pipe, and outlet pipe includes several branches, and each road is equipped with solenoid valve, from
The automatic spray control loop for controlling electromagnetic valve work is equipped in dynamic spray distribution box.It is accordingly opened as long as clicking daily
It closes, opens pump switch, beam slab will automatic spray on time as required.Automatic spray curing means terminates from supplying water to spray,
It is basic to realize automation, while supplied water using variable frequency pump, originally water consumption is greatly reduced, has saved production cost.
Preferably, automatic spray control loop includes power supply circuit and control circuit, power supply circuit and control circuit are simultaneously
Connection；Power supply circuit includes several power supply branches parallel with one another, and control circuit includes the controlling brancher of several interconnections, powers
Branch and controlling brancher correspond, and power supply branch includes A.C. contactor and the solenoid valve of outlet pipe branch road, and solenoid valve leads to
It crosses A.C. contactor to be connected between power cord and zero curve, the control coil of solenoid valve is connected in corresponding controlling brancher.
Controlling brancher is corresponded with power supply branch, and when controlling brancher in turn switches on, solenoid valve is also attracted successively automatically.
Preferably, controlling brancher further includes a button switch, a toggle switch, a time relay and one
Intermediate relay, button switch one end are connect with power cord, the coil connection of the other end and A.C. contactor, A.C. contactor
Coil is connect with zero curve；The coil of the time relay is connected between toggle switch one side contact and zero curve, intermediate relay
Coil is connected between toggle switch another side contact and zero curve；Toggle switch input terminal connects with intermediate relay normally opened contact
It connects, the normally opened timing closing contact of the time relay is in parallel with intermediate relay normally opened contact；The normally closed delay of the time relay is broken
Contact portion is opened between ac contactor coil and time relay coil, the intermediate relay of all controlling branchers it is normally opened
Contact is sequentially connected in series, and there are one intermediate for series connection between the normally opened contact and zero curve of the intermediate relay in last group of controlling brancher
The coil of relay, if the intermediate relay is the first relay.Toggle switch is state prewired all first to be connected with the time relay,
After previous controlling brancher is connected, the time relay obtains electric, and ac contactor coil obtains electric, and power supply branch way solenoid valve is attracted；When
Setting time when time reaches, the normally opened timing closing contact closure of the time relay, the latter controlling brancher obtains electric.
Preferably, control circuit further includes gear selection circuit, gear selection circuit include two switching switches, one
Button switch, a time switch and several intermediate relays, if one of intermediate relay is the second relay, two are cut
It is respectively the first switching switch and the second switching switch to change switch, and the first switching switch and the second switching switch all have first respectively
Group contact and second group of contact, first group of contact series of the first switching switch in power cord, with second cut by second group of contact
First group of contact portion of switch is changed, second first group of the switching switch contact other end is connect with button switch, and the second switching is opened
It connects with the normally opened contact of time switch the second group of contact closed；First normally opened contact of the second relay and time switch
Normally opened contact is in parallel, and second normally opened contact is in parallel with button switch；First relay normally closed contact one end respectively with button
Two normally opened contacts connection of switch, the normally opened contact of time switch and the second relay, the normally-closed contact of the first relay are another
Toggle switch input terminal of the one end respectively with the second relay coil and first group of controlling brancher is connect, the second relay coil with
Zero curve connects；The coils from parallel connection of coils of remaining intermediate relay between contact and zero curve, is formed simultaneously in first group of the first switching switch
Connection group, the button switch and ac contactor coil of first group of controlling brancher and in parallel group it is in parallel；Intermediate relay in parallel group
The normally-closed contact of device is connected with the normally closed delay break contact of the time relay in controlling brancher；Time switch is connected on second and cuts
Second group of switch is changed between contact and zero curve.Gear selection circuit is for selecting automatic transmission, semi-automatic shelves or manual, mutually
Intermediate relay in parallel obtain it is electric after, corresponding intermediate relay normally-closed contact disconnects in controlling brancher, only has in controlling brancher
Button switch can obtain it is electric, can select at this time want opening controlling brancher press button switch.To carry out semi-automatic control
System, the toggle switch being not desired in open controlling brancher is allocated to and is connect with intermediate relay coil, then presses gear selection electricity
Button switch in road can selectively connect solenoid valve in this way.
Preferably, indicator light is parallel in controlling brancher on ac contactor coil.Indicator light is used to indicate exchange and connects
Tentaculum connects situation.
Preferably, external water source is tank, it is additionally provided with intelligent water pump, the intelligent water pump for controlling tank water
Distribution box and water level probe, water level probe are mounted in tank, and intelligent water pump distribution box includes frequency converter, frequency converter and intelligence
Water pump connects.The water level of tank uses intelligent control, and time saving and energy saving, variable frequency water supply mode being capable of limited saving water resource.
Preferably, the water pump of Automatic-boosting pump assembly is MODEL VERTICAL MULTISTAGE PUMP, stable-pressure device is air accumulator.
Preferably, several roads of outlet pipe are additionally provided with manually-operated gate.Manually-operated gate be used in solenoid valve failure or
When person damages, the water outlet status of outlet pipe is controlled by manual type.
Preferably, it is additionally provided with isolating transformer in automatic spray distribution box.Isolating transformer is used to protect automatic spray
Control loop.
The present invention has significant technique effect as a result of above technical scheme：It can realize automatic spray.Automatically
Spray terminates from supplying water to spray, basic to realize automation, greatly reduces labor intensity, improves productivity, reduce into
This, ensure that the intensity and quality of beam slab.Reduce originally water consumption simultaneously, save production cost.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention 1.
Fig. 2 is the automatic spray control loop schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the enlarged diagram of part A in Fig. 2.
Fig. 4 is the enlarged diagram of part B in Fig. 2.
Fig. 5 is the enlarged diagram of C portion in Fig. 2.
Fig. 6 is the enlarged diagram of D parts in Fig. 2.
Fig. 7 is the enlarged diagram of E parts in Fig. 2.
The toponym that each number designation is referred in the figures above is as follows：Wherein, 1-automatic spray distribution box, 2-from
Dynamic supercharging pump assembly, 3-water rate control unit, 21-Automatic-boosting pump assembly distribution box, 22-water pump, 23-stable-pressure device,
24-water inlet pipe, 25-outlet pipe, 26-solenoid valve, 27-manually-operated gate, 31-intelligent water pump, 32-intelligent water pump distribution
Case, 33-water level probe.
Specific embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 7, the circuit that part repeats is omitted because circuit is longer, in Fig. 2.A kind of prefabricated case beam is automatic
Spray maintenance device, including automatic spray distribution box 1 and Automatic-boosting pump assembly 2, Automatic-boosting pump assembly 2 includes Automatic-boosting
Pump assembly distribution box 21, water pump 22 and stable-pressure device 23, Automatic-boosting pump assembly distribution box 21 include adjusting 22 electricity of water pump
The frequency converter of machine rotating speed, frequency converter are connect with water pump 22, and 22 input terminal of water pump is connected with water inlet pipe 24, water inlet pipe 24 and external water
Source connects；22 output terminal of water pump is connected with outlet pipe 25, and outlet pipe 25 includes several branches, and each road is equipped with solenoid valve
26, the interior automatic spray control loop being equipped with for solenoid valve 26 to be controlled to work of automatic spray distribution box 1.Automatic spray distribution box
Isolating transformer is additionally provided in 1.The water pump 22 of Automatic-boosting pump assembly 2 is MODEL VERTICAL MULTISTAGE PUMP, and stable-pressure device 23 is air accumulator.Go out
Several roads of water pipe 25 are additionally provided with manually-operated gate 27.
Automatic spray control loop includes power supply circuit and control circuit, and power supply circuit and control circuit are in parallel；Power supply electricity
Road includes several power supply branches parallel with one another, and control circuit includes the controlling brancher of several interconnections, power branch and control
Branch processed corresponds, and power supply branch includes the solenoid valve 26 of 25 roads of A.C. contactor and outlet pipe, and solenoid valve 26 passes through
A.C. contactor is connected between power cord and zero curve, and the control coil of solenoid valve 26 is connected in corresponding controlling brancher.
External water source is tank, is additionally provided with the water rate control unit 3 for controlling tank water, water rate control unit
Including intelligent water pump 31, intelligent water pump distribution box 32 and water level probe 33, water level probe 33 is mounted in tank, intelligent water pump
Distribution box 32 includes frequency converter, and frequency converter is connect with intelligent water pump 31.
Controlling brancher further includes a button switch, a toggle switch, a time relay and an intermediate relay
Device, button switch one end are connect with power cord, the coil connection of the other end and A.C. contactor, the coil of A.C. contactor and zero
Line connects；The coil of the time relay is connected between toggle switch one side contact and zero curve, the coil series connection of intermediate relay
Between toggle switch another side contact and zero curve；Toggle switch input terminal is connect with intermediate relay normally opened contact, the time after
The normally opened timing closing contact of electric appliance is in parallel with intermediate relay normally opened contact；The normally closed delay break contact connection of the time relay
Between ac contactor coil and time relay coil, the normally opened contact of the intermediate relay of all controlling branchers is gone here and there successively
Join, connecting between the normally opened contact and zero curve of the intermediate relay in last group of controlling brancher, there are one the lines of intermediate relay
Circle, if the intermediate relay is the first relay.
Control circuit further includes gear selection circuit, gear selection circuit include two switching switches, a button switch,
One time switch and several intermediate relays, if one of intermediate relay is the second relay, two switching switches point
Not Wei the first switching switch and the second switching switch, the first switching switch and the second switching switch all have respectively first group of contact and
Second group of contact, first group of contact series of the first switching switch are in power cord, second group of contact and the second switching switch
First group of contact portion, second first group of the switching switch contact other end are connect with button switch, and the second of the second switching switch
It connects with the normally opened contact of time switch group contact；First normally opened contact of the second relay and the normally opened contact of time switch
Parallel connection, second normally opened contact are in parallel with button switch；First relay normally closed contact one end respectively with button switch, time control
Two normally opened contacts of the normally opened contact of switch and the second relay connect, the normally-closed contact other end of the first relay respectively with
The toggle switch input terminal connection of second relay coil and first group of controlling brancher, the second relay coil are connect with zero curve；
The coils from parallel connection of coils of remaining intermediate relay forms group in parallel in first group of the first switching switch between contact and zero curve, and first
The button switch and ac contactor coil of group controlling brancher and in parallel group of parallel connection；The normally closed of intermediate relay in parallel group is touched
Point is connected with the normally closed delay break contact of the time relay in controlling brancher；Time switch is connected on the second switching switch second
Between group contact and zero curve.In the present embodiment, when carrying out manual operation, circuit is first connected, at this moment the voltage on voltmeter
Should be 220V, at this moment switching switch SA1 is turned to it is manual, at this moment intermediate relay KAI, KA2, KA3, KA4, KA5, KA6,
KA7, KA8 obtain electric, the normally-closed contact disconnection in all controlling branchers, such as KA11, KA12, KA13, KA14.It is arbitrary to press control branch
Button switch in road such as switchs SB1, and A.C. contactor K1 is closed, and solenoid valve M1, M2 obtain electric, and beam slab starts to spray.It carries out certainly
During dynamic shelves operation, switching switch SA1 is turned to automatic, in order to work, convenient be divided into automatically is two kinds, it is semi-automatic with it is automatic.Using
During semi-automatic shelves, switching switch SA2 is turned to semi-automatic, the toggle switch in the controlling brancher corresponding to beam slab that will be conserved
The direction of Connection Time relay coil, such as toggle switch SB2, SB6, SB8, SB22, SB26, SB29 are allocated to, is at this moment pressed again
Lower half automatic button SBA2, at this moment the second relay coil KA obtain electric, normally opened contact KA1 be closed, at this moment toggle switch SB2 connect
Be time relay T1, A.C. contactor K1 coils and time relay T1 coils simultaneously it is electric, A.C. contactor K1 is connected,
First beam slab pedestal starts automatic spray.Until the normally closed delay break contact T11 disconnections of time relay T1, A.C. contactor
K1 coil losing electricities, K1 contacts disconnect, and First beam slab pedestal stops automatic spray.The normally opened timing closing contact of the time relay
T12 is closed, and toggle switch is pressed toward another side, and intermediate relay K4 obtains electric, normally opened contact K4 closures, the past connections of toggle switch SB6
The direction of intermediate relay coil is pressed, A.C. contactor K5, time relay T3 simultaneously electric, K5 contact closures, third platform beam
Pallet seat starts automatic spray, and normally closed delay break contact T31 is disconnected after one minute, and A.C. contactor K5 coil losing electricities touch
Point disconnects, and third platform beam slab pedestal stops automatic spray, and the normally opened timing closing contact T32 of the time relay is closed.Other are with this
Analogize, corresponding beam slab by the defined time will automatic spray conserve.After each pedestal beam slab spray, first after
Electric apparatus coil K61 obtains electric, normally-closed contact K61 disconnections, the second relay coil KA dead electricity, and normally opened contact disconnects, automatic spray one
A cycle stops.
When switching switch SA2 is turned to it is automatic when, when time switch acts, time switch S normally opened contacts are closed, at this moment second
Relay coil KA obtains electric, and normally opened contact KA2 is closed, and at this moment toggle switch SB2 connections are time relay T1, ac contactor
Device coil K1, time relay coil T1 simultaneously electric, A.C. contactor K1 contact closures, beam slab pedestal 1 start automatic spray,
Principle is identical with semi-automatic shelves.As soon as when automatic spray after circulation terminates, by time switch S by regulation mix up the time prepare under
A automatic spray cycle.
In short, the foregoing is merely presently preferred embodiments of the present invention, all equalizations made according to scope of the present invention patent
Variation and modification should all belong to the covering scope of patent of the present invention.
Claims (9)
1. a kind of prefabricated case beam automatic spray curing means, it is characterised in that：Including automatic spray distribution box (1) and Automatic-boosting
Pump assembly (2), Automatic-boosting pump assembly (2) include Automatic-boosting pump assembly distribution box (21), water pump (22) and stable-pressure device
(23), frequency converter of the Automatic-boosting pump assembly distribution box (21) including being used to adjust water pump (22) motor speed, frequency converter and water
(22) connection is pumped, water pump (22) input terminal is connected with water inlet pipe (24), and water inlet pipe (24) is connected with external water source；Water pump (22) is defeated
Outlet is connected with outlet pipe (25), and outlet pipe (25) includes several branches, and each road is equipped with solenoid valve (26), automatic spray
The automatic spray control loop for solenoid valve (26) to be controlled to work is equipped in distribution box (1).
2. a kind of prefabricated case beam automatic spray curing means according to claim 1, it is characterised in that：Automatic spray controls
Circuit includes power supply circuit and control circuit, and power supply circuit and control circuit are in parallel；Power supply circuit includes several parallel with one another
Power supply branch, control circuit include the controlling brancher of several interconnections, power branch and controlling brancher one-to-one correspondence, power supply branch
Road includes A.C. contactor and the solenoid valve (26) of outlet pipe (25) branch road, and solenoid valve (26) is connected to by A.C. contactor
Between power cord and zero curve, the control coil of solenoid valve (26) is connected in corresponding controlling brancher.
3. a kind of prefabricated case beam automatic spray curing means according to claim 2, it is characterised in that：Controlling brancher also wraps
Include a button switch, a toggle switch, a time relay and an intermediate relay, button switch one end and power supply
Line connects, and the coil of the other end and A.C. contactor connects, and the coil of A.C. contactor is connect with zero curve；The line of the time relay
Circle is connected between toggle switch one side contact and zero curve, the coil of intermediate relay be connected on toggle switch another side contact and
Between zero curve；Toggle switch input terminal is connect with intermediate relay normally opened contact, the normally opened timing closing contact of the time relay with
Intermediate relay normally opened contact is in parallel；The normally closed delay break contact of the time relay is connected to ac contactor coil and time
Between relay coil, the normally opened contact of the intermediate relay of all controlling branchers is sequentially connected in series, in last group of controlling brancher
Intermediate relay normally opened contact and zero curve between the coil connected there are one intermediate relay, if the intermediate relay is the
One relay.
4. a kind of prefabricated case beam automatic spray curing means according to claim 3, it is characterised in that：Control circuit is also wrapped
Include gear selection circuit, gear selection circuit include two switching switches, a button switch, a time switch and it is several in
Between relay, if one of intermediate relay is the second relay, two switching switches are respectively the first switching switch and the
Two switching switches, the first switching switch and the second switching switch all have first group of contact and second group of contact, the first switching respectively
First group of contact series of switch are in power cord, second group of contact and first group of contact portion of the second switching switch, and second
First group of contact other end of switching switch is connect with button switch, second group of contact of the second switching switch and time switch it is normal
Open contact series；First normally opened contact of the second relay is in parallel with the normally opened contact of time switch, second normally opened contact
It is in parallel with button switch；First relay normally closed contact one end respectively with button switch, the normally opened contact of time switch and
Two normally opened contacts connection of two relays, the normally-closed contact other end of the first relay respectively with the second relay coil and the
The toggle switch input terminal connection of one group of controlling brancher, the second relay coil are connect with zero curve；Remaining intermediate relay
Coils from parallel connection of coils between contact and zero curve, forms group in parallel in first group of the first switching switch, and the button of first group of controlling brancher is opened
Pass and ac contactor coil and in parallel group of parallel connection；In the normally-closed contact and controlling brancher of intermediate relay in parallel group when
Between relay it is normally closed delay break contact series connection；Time switch is connected on second group of the second switching switch between contact and zero curve.
5. a kind of prefabricated case beam automatic spray curing means according to claim 3, it is characterised in that：It is handed in controlling brancher
Indicator light is parallel on stream contactor coil.
6. a kind of prefabricated case beam automatic spray curing means according to claim 1, it is characterised in that：External water source is storage
Pond, is additionally provided with the water rate control unit (3) for controlling tank water, water rate control unit include intelligent water pump (31),
Intelligent water pump distribution box (32) and water level probe (33), water level probe (33) is in tank, intelligent water pump distribution box
(32) including frequency converter, frequency converter is connect with intelligent water pump (31).
7. a kind of prefabricated case beam automatic spray curing means according to claim 1, it is characterised in that：Automatic-boosting pump machine
The water pump (22) of group (2) is MODEL VERTICAL MULTISTAGE PUMP, and stable-pressure device (23) is air accumulator.
8. a kind of prefabricated case beam automatic spray curing means according to claim 1, it is characterised in that：Outlet pipe (25)
Several branch roads are additionally provided with manually-operated gate (27).
9. a kind of prefabricated case beam automatic spray curing means according to claim 1, it is characterised in that：Automatic spray distribution
Isolating transformer is additionally provided in case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102359.8A CN108189208B (en) | 2018-02-01 | 2018-02-01 | Automatic spraying and maintaining device for prefabricated box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810102359.8A CN108189208B (en) | 2018-02-01 | 2018-02-01 | Automatic spraying and maintaining device for prefabricated box girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108189208A true CN108189208A (en) | 2018-06-22 |
| CN108189208B CN108189208B (en) | 2020-06-26 |
Family
ID=62591705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810102359.8A Expired - Fee Related CN108189208B (en) | 2018-02-01 | 2018-02-01 | Automatic spraying and maintaining device for prefabricated box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108189208B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805718A (en) * | 2020-07-31 | 2020-10-23 | 湖北省清江路桥建筑有限公司 | Spraying maintenance system and maintenance method |
| CN112405804A (en) * | 2019-08-03 | 2021-02-26 | 无锡交通建设工程集团有限公司 | Automatic control spraying maintenance system for prefabricated box girder |
| CN114210512A (en) * | 2021-11-10 | 2022-03-22 | 天津力神电池股份有限公司 | Edge dispensing control device of battery pole piece |
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| CN114210512A (en) * | 2021-11-10 | 2022-03-22 | 天津力神电池股份有限公司 | Edge dispensing control device of battery pole piece |
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| CN108189208B (en) | 2020-06-26 |
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