CN107255094B - A kind of ceramic brick press energy saving in pumping station control method and device - Google Patents

A kind of ceramic brick press energy saving in pumping station control method and device Download PDF

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Publication number
CN107255094B
CN107255094B CN201710317770.2A CN201710317770A CN107255094B CN 107255094 B CN107255094 B CN 107255094B CN 201710317770 A CN201710317770 A CN 201710317770A CN 107255094 B CN107255094 B CN 107255094B
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Prior art keywords
pressure
system pressure
solenoid directional
overflow valve
valve
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CN201710317770.2A
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CN107255094A (en
Inventor
黄蓉
夏建华
余锐平
黄国雄
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Foshan Henglitai Machinery Co Ltd
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Foshan Henglitai Machinery Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/02Servomotor systems with programme control derived from a store or timing device; Control devices therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/14Energy-recuperation means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205Systems with pumps
    • F15B2211/2053Type of pump
    • F15B2211/20546Type of pump variable capacity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/20Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/255Flow control functions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/88Control measures for saving energy

Abstract

The invention discloses a kind of ceramic brick press energy saving in pumping station control methods, comprising: when ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure;When system pressure is not up to the goal systems pressure set, pass through the first solenoid directional control valve and the first overflow valve control system pressure;When system pressure reaches the goal systems pressure of setting, pass through the second solenoid directional control valve and the second overflow valve control system pressure.The invention also discloses a kind of ceramic brick press energy saving in pumping station control method based on ceramics pressure brick process and a kind of ceramic brick press energy saving in pumping station control devices.Using the present invention, it can effectively guarantee that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, to realize the large and small switching of discharge capacity;Meanwhile in the case where guaranteeing that press works normally, the reduction of press energy consumption is realized, under normal operation, power saving rate is about 5%.

Description

A kind of ceramic brick press energy saving in pumping station control method and device
Technical field
The present invention relates to ceramic device manufacturing field more particularly to a kind of ceramic brick press energy saving in pumping station control methods, one Ceramic brick press energy saving in pumping station control method and a kind of ceramic brick press energy saving in pumping station control of the kind based on ceramics pressure brick process Device.
Background technique
As shown in Figure 1, the pumping plant of current ceramic brick press comes using one constant pressure variable displacement pump of asynchronous machine band to whole A system provides power source.
The specific working principle is as follows: when solenoid directional control valve YV501 obtains electric, main pump plays pressure, by adjusting overflow valve V501's The size of the adjustable system pressure of aperture.During compressor operation, motor speed is constant, and variable pump is according to the system pressure of setting The discharge capacity of power adjustment pump.
When system pressure is lower, pump is in maximum pump discharge state;When system pressure increases to overflow valve V501 pressure, Pumpage reduces, and output flow reduces, and pressure reduces therewith.
According to formula: NPO=△PQP/ 60, wherein NPOFor pump power output, Δ P is pump inlet outlet pressure differential, QPFor pump Output flow.
Ceramic press is failure to actuate pushing away brick cloth stage, entire press, and whole system pressure has almost no change at this time, pump Output flow is smaller.According to above-mentioned formula, if system pressure reduced, Δ P reduces at this time, and pump power output is reduced by, then Energy can be saved to a certain extent.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of ceramic brick press energy saving in pumping station control method, can have Effect reduces press energy consumption.
The technical problems to be solved by the invention also reside in, and provide a kind of ceramic brick press pump based on ceramics pressure brick process It stands energy-saving control method, can effectively reduce press energy consumption.
The technical problems to be solved by the invention also reside in, and provide a kind of ceramic brick press energy saving in pumping station control device, can Press energy consumption is effectively reduced.
In order to solve the above-mentioned technical problems, the present invention provides a kind of ceramic brick press energy saving in pumping station control methods, comprising: When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure;When system pressure is not up to the target system set When pressure of uniting, pass through the first solenoid directional control valve and the first overflow valve control system pressure;When system pressure reaches the target of setting When system pressure, system pressure is reduced by the second solenoid directional control valve and the second overflow valve.
As an improvement of the above scheme, when the goal systems pressure for reaching setting when system pressure, pass through the second electricity The method that magnetic reversal valve and the second overflow valve reduce system pressure includes: when system pressure reaches the goal systems pressure of setting When, system enters delay stage;After delay stage, second solenoid directional control valve obtain it is electric, and by the second overflow valve drop Low system pressure.
As an improvement of the above scheme, the time of the delay stage is 150 ~ 250ms.
As an improvement of the above scheme, the oil pressure relief of second overflow valve is 3 ~ 6Mpa.
Correspondingly, the present invention also provides a kind of ceramic brick press energy saving in pumping station controlling parties based on ceramics pressure brick process Method, comprising:
S1, in press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system pressure Power;
S2, press, which enters, pushes away the brick cloth stage;
S3, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, the second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve;
S4, feeding are completed, and move beam decline, the second solenoid directional control valve power loss, and pass through the first overflow valve control system Pressure;
S5, compacting are completed, and move beam backhaul to a high position;
S6, judges whether system pressure achievees the purpose that setting system pressure;
S7, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve.
As an improvement of the above scheme, the time of the delay stage is 150 ~ 250ms.
As an improvement of the above scheme, the oil pressure relief of second overflow valve is 3 ~ 6Mpa.
Correspondingly, the present invention also provides a kind of ceramic brick press energy saving in pumping station control devices, including motor, pumping plant, One solenoid directional control valve, the first overflow valve, the second solenoid directional control valve and the second overflow valve;
First solenoid directional control valve and the first overflow valve form first group of control device;
Second solenoid directional control valve and the second overflow valve form second group of control device;
First group of control device and second group of control device are mutually indepedent, and control system pressure is respectively to adjust system Energy consumption.
The invention has the following beneficial effects:
Invention uses two sets of independent control devices, and is detected in real time to system pressure using self-control cabinet.Work as system When pressure is not up to the goal systems pressure set, when the first solenoid directional control valve obtains electric, main pump plays pressure, by adjusting the first overflow The aperture of valve can control the size of system pressure;When system pressure reaches the goal systems pressure of setting, program increases The delay of 200ms or so, the second solenoid directional control valve again it is electric, system pressure is determined by the size of the second overflow valve at this time, thus Reach it is following the utility model has the advantages that
(1) effectively guarantee that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, to realize The large and small switching of discharge capacity;
(2) in the case where guaranteeing that press works normally, the reduction of press energy consumption is realized, under normal operation, economize on electricity Rate is about 5%.
Detailed description of the invention
Fig. 1 is existing ceramic brick press pumping plant schematic diagram;
Fig. 2 is the schematic diagram of ceramic brick press energy saving in pumping station control device of the present invention;
Fig. 3 is the flow chart of ceramic brick press energy saving in pumping station control method of the present invention;
Fig. 4 is that the present invention is based on the flow charts of the ceramic brick press energy saving in pumping station control method of ceramics pressure brick process.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing Step ground detailed description.Only this is stated, the present invention occurs in the text or will occur up, down, left, right, before and after, it is inside and outside etc. just Position word is not to specific restriction of the invention only on the basis of attached drawing of the invention.
As shown in Figure 1, the pumping plant of current ceramic brick press comes using one constant pressure variable displacement pump of asynchronous machine band to whole A system provides power source.When solenoid directional control valve YV501 obtains electric, main pump plays pressure, and the aperture by adjusting overflow valve V501 can With the size of control system pressure.
Referring to fig. 2, Fig. 2 shows the specific structure of ceramic brick press energy saving in pumping station control device of the present invention comprising electricity Machine M, pumping plant, the first solenoid directional control valve YV501, the first overflow valve V501, the second solenoid directional control valve YV502 and the second overflow valve V502;The first solenoid directional control valve YV501 and the first overflow valve V501 forms first group of control device;Second electromagnetism changes Second group of control device is formed to valve YV502 and the second overflow valve V502;First group of control device and second group of control fill It sets independently of each other, control system pressure is respectively to adjust system energy consumption.
It should be noted that ceramic press is failure to actuate pushing away brick cloth stage, entire press, whole system pressure is several at this time Do not change, pump output flow is smaller.According to formula NPO=△PQP/ 60, if system pressure reduced, Δ P reduces at this time, Pump power output is reduced by, then can save energy to a certain extent, therefore, is not needed pump in press and is provided energy or needs When smaller energy (such as press pushes away the brick cloth stage), allows system pressure to be switched to the situation of a low-pressure, can achieve energy conservation Effect.But when system pressure not up to sets high pressure, variable pump can huge discharge output;It is set when system pressure reaches When determining high pressure, pumpage can become smaller gradually;If pump discharge pressure is switched to low-pressure suddenly, pump be will receive compared with favourable opposition It hits, certain influence is had on the service life of pump, therefore, when carrying out pressure switching is to guarantee that pump quickly, can be carried out smoothly The key and critical issue to be solved by this invention of pressure switching.
Unlike the prior art, the present invention uses two sets of independent control devices, and the first solenoid directional control valve YV501 is obtained When electric, main pump plays pressure, can control the size of system pressure by adjusting the aperture of the first overflow valve V501.When press is pushing away brick When the cloth stage, the second solenoid directional control valve YV502 obtains electric, and system pressure is determined by the size of the second overflow valve V502 at this time, To in real time to the segmentation of system pressure, divide situation control, strong flexibility.
The flow chart of ceramic brick press energy saving in pumping station control method of the present invention is shown referring to Fig. 3, Fig. 3 comprising:
S101, when ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure.
It should be noted that ceramic brick press pushes away the brick cloth stage, press does not need pump and provides energy or press needs Smaller energy, at this point, allowing system pressure to be switched to the situation of a low-pressure, to reach energy-efficient effect.
S102 is overflow when system pressure is not up to the goal systems pressure set by the first solenoid directional control valve and first Flow valve control system pressure.
S103 passes through the second solenoid directional control valve and the second overflow when system pressure reaches the goal systems pressure of setting Valve reduces system pressure.
Specifically, when the goal systems pressure for reaching setting when system pressure, pass through the second solenoid directional control valve and Two overflow valves reduce system pressure method include:
A1, when system pressure reaches the goal systems pressure of setting, system enters delay stage;Wherein, the delay The time in stage is 150 ~ 250ms, preferably 200ms.
A2, after delay stage, second solenoid directional control valve obtains electric, and reduces system pressure by the second overflow valve Power.Wherein, the oil pressure relief of second overflow valve is 3 ~ 6Mpa, preferably 5 Mpa, by by the overflow pressure of the second overflow valve When power is transferred to 5 Mpa, energy can be saved to a certain extent.
The present invention in real time detects system pressure using self-control cabinet, when system pressure reaches the goal systems pressure of setting When power, program increases the delay of 200ms or so, the second solenoid directional control valve again it is electric, system pressure is by the second overflow valve at this time Size determines.Wherein, increasing 200ms delay is exactly to carry out pressure switching at this time to guarantee that the discharge capacity of pump at this time becomes minimum, Pump is impacted smaller.Correspondingly, when need of work elevated pressures, the second solenoid directional control valve power loss again.
Referring to fig. 4, Fig. 4 shows that the present invention is based on the ceramic brick press energy saving in pumping station control methods of ceramics pressure brick process Flow chart comprising:
S201, in press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system Pressure.
S202, press, which enters, pushes away the brick cloth stage.
S203, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, the second solenoid directional control valve obtains electric, and reduces system pressure (pumping up low pressure) by the second overflow valve.Wherein, the delay rank The time of section is 150 ~ 250ms, preferably 200ms;The oil pressure relief of second overflow valve is 3 ~ 6Mpa, preferably 5 Mpa.
S204, feeding are completed, and move beam decline, the second solenoid directional control valve power loss, and pass through the first overflow valve control system It unites pressure (pumping up high pressure).
S205, compacting are completed, and move beam backhaul to a high position.
S206, judges whether system pressure achievees the purpose that setting system pressure.
S207, when system pressure reaches the goal systems pressure of setting, system enters delay stage, and delay stage terminates Afterwards, second solenoid directional control valve obtains electric, and reduces system pressure (pump is in low pressure), subsequent system etc. by the second overflow valve Delay to be recycled enters next circulation;When system pressure is not up to the goal systems pressure set, continues waiting for, otherwise examine Hydraulic system is surveyed, after trouble shooting, and when system pressure reaches the goal systems pressure of setting, is again introduced into step S203.
From the foregoing, it will be observed that invention uses two sets of independent control devices, and system pressure is examined in real time using self-control cabinet It surveys.When system pressure is not up to the goal systems pressure set, when the first solenoid directional control valve obtains electric, main pump plays pressure, passes through tune The aperture of whole first overflow valve can control the size of system pressure;When system pressure reaches the goal systems pressure of setting, Program increases the delay of 200ms or so, the second solenoid directional control valve again it is electric, system pressure is determined by the size of the second overflow valve at this time It is fixed, thus reach it is following the utility model has the advantages that
(1) effectively guarantee that pump realizes that high and low pressure is seamless, shock-free switching during press cycle, to realize The large and small switching of discharge capacity;
(2) in the case where guaranteeing that press works normally, the reduction of press energy consumption is realized, under normal operation, economize on electricity Rate is about 5%.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (7)

1. a kind of ceramic brick press energy saving in pumping station control method characterized by comprising
When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure;
When system pressure is not up to the goal systems pressure set, pass through the first solenoid directional control valve and the first overflow valve control system System pressure;
When system pressure reaches the goal systems pressure of setting, system is reduced by the second solenoid directional control valve and the second overflow valve Pressure;
Wherein, when system pressure reaches the goal systems pressure of setting, system enters delay stage;After delay stage, Second solenoid directional control valve obtain it is electric, and by the second overflow valve reduce system pressure;
First solenoid directional control valve and the first overflow valve form first group of control device, second solenoid directional control valve and second Overflow valve forms second group of control device, and first group of control device and second group of control device are mutually indepedent.
2. ceramic brick press energy saving in pumping station control method as described in claim 1, which is characterized in that the delay stage when Between be 150~250ms.
3. ceramic brick press energy saving in pumping station control method as described in claim 1, which is characterized in that second overflow valve Oil pressure relief is 3~6Mpa.
4. a kind of ceramic brick press energy saving in pumping station control method based on ceramics pressure brick process characterized by comprising
S1, in press cycle pressing process, the first solenoid directional control valve always it is electric, pass through the first overflow valve control system pressure;
S2, press, which enters, pushes away the brick cloth stage;
S3, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage, Two solenoid directional control valves obtain it is electric, and by the second overflow valve reduce system pressure;
S4, feeding are completed, and move beam decline, the second solenoid directional control valve power loss, and pass through the first overflow valve control system pressure;
S5, compacting are completed, and move beam backhaul to a high position;
S6, judges whether system pressure achievees the purpose that setting system pressure;
S7, when system pressure reaches the goal systems pressure of setting, system enters delay stage, after delay stage, institute State the second solenoid directional control valve obtain it is electric, and by the second overflow valve reduce system pressure.
5. the ceramic brick press energy saving in pumping station control method as claimed in claim 4 based on ceramics pressure brick process, feature exist In the time of the delay stage is 150~250ms.
6. the ceramic brick press energy saving in pumping station control method as claimed in claim 4 based on ceramics pressure brick process, feature exist In the oil pressure relief of second overflow valve is 3~6Mpa.
7. a kind of ceramic brick press energy saving in pumping station control device, which is characterized in that including motor, pumping plant, the first solenoid directional control valve, First overflow valve, the second solenoid directional control valve and the second overflow valve;
First solenoid directional control valve and the first overflow valve form first group of control device;
Second solenoid directional control valve and the second overflow valve form second group of control device;
First group of control device and second group of control device are mutually indepedent, and control system pressure is respectively to adjust system energy Consumption;
When ceramic brick press pushes away the brick cloth stage, self-control cabinet real-time detecting system pressure;
When system pressure is not up to the goal systems pressure set, pass through the first solenoid directional control valve and the first overflow valve control system System pressure;
When system pressure reaches the goal systems pressure of setting, system is reduced by the second solenoid directional control valve and the second overflow valve Pressure;
Wherein, when system pressure reaches the goal systems pressure of setting, system enters delay stage;After delay stage, Second solenoid directional control valve obtain it is electric, and by the second overflow valve reduce system pressure.
CN201710317770.2A 2017-05-08 2017-05-08 A kind of ceramic brick press energy saving in pumping station control method and device Active CN107255094B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108818883B (en) * 2018-07-09 2023-11-14 广东天恒液压机械有限公司 Ceramic press electrohydraulic control method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204099315U (en) * 2014-08-28 2015-01-14 佛山市恒力泰机械有限公司 A kind of hydraulic power energy-saving servo control gear
CN105041744A (en) * 2015-06-25 2015-11-11 广州艾默德驱动系统技术有限公司 PLC control system and method of servo energy-saving control system of ceramic press
CN105090141A (en) * 2015-07-02 2015-11-25 太原重工股份有限公司 Hydraulic variable control system and vehicle
CN105370640A (en) * 2014-08-28 2016-03-02 佛山市恒力泰机械有限公司 Hydraulic power servo control device and method of ceramic brick machine
CN106286453A (en) * 2016-10-13 2017-01-04 佛山市三水宏源陶瓷企业有限公司 The double pressure system of ceramic brick press constant pressure variable displacement pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204099315U (en) * 2014-08-28 2015-01-14 佛山市恒力泰机械有限公司 A kind of hydraulic power energy-saving servo control gear
CN105370640A (en) * 2014-08-28 2016-03-02 佛山市恒力泰机械有限公司 Hydraulic power servo control device and method of ceramic brick machine
CN105041744A (en) * 2015-06-25 2015-11-11 广州艾默德驱动系统技术有限公司 PLC control system and method of servo energy-saving control system of ceramic press
CN105090141A (en) * 2015-07-02 2015-11-25 太原重工股份有限公司 Hydraulic variable control system and vehicle
CN106286453A (en) * 2016-10-13 2017-01-04 佛山市三水宏源陶瓷企业有限公司 The double pressure system of ceramic brick press constant pressure variable displacement pump

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Inventor after: Yu Ruiping

Inventor after: Huang Rong

Inventor after: Xia Jianhua

Inventor after: Huang Guoxiong

Inventor before: Huang Rong

Inventor before: Xia Jianhua

Inventor before: Yu Ruiping

Inventor before: Huang Guoxiong

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EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20171017

Assignee: FOSHAN DLT TECHNOLOGY CO.,LTD.

Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd.

Contract record no.: X2022440000056

Denomination of invention: An energy-saving control method and device for ceramic brick press pump station

Granted publication date: 20190129

License type: Common License

Record date: 20220721

Application publication date: 20171017

Assignee: KEDA CLEAN ENERGY Co.,Ltd.

Assignor: FOSHAN HENGLITAI MACHINERY Co.,Ltd.

Contract record no.: X2022440000057

Denomination of invention: An energy-saving control method and device for ceramic brick press pump station

Granted publication date: 20190129

License type: Common License

Record date: 20220721