CN117482777A - Warm mix foam asphalt foaming equipment and application method thereof - Google Patents

Warm mix foam asphalt foaming equipment and application method thereof Download PDF

Info

Publication number
CN117482777A
CN117482777A CN202311370716.6A CN202311370716A CN117482777A CN 117482777 A CN117482777 A CN 117482777A CN 202311370716 A CN202311370716 A CN 202311370716A CN 117482777 A CN117482777 A CN 117482777A
Authority
CN
China
Prior art keywords
foaming
valve
water
ball valve
warm mix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311370716.6A
Other languages
Chinese (zh)
Inventor
徐思田
陆慧峰
殷琪
鲁浩晟
孙德洋
许文奎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongyifeng Suzhou Urban Construction And Development Co ltd
Zhongyifeng Suzhou Materials Technology Co ltd
Original Assignee
Zhongyifeng Suzhou Urban Construction And Development Co ltd
Zhongyifeng Suzhou Materials Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongyifeng Suzhou Urban Construction And Development Co ltd, Zhongyifeng Suzhou Materials Technology Co ltd filed Critical Zhongyifeng Suzhou Urban Construction And Development Co ltd
Priority to CN202311370716.6A priority Critical patent/CN117482777A/en
Publication of CN117482777A publication Critical patent/CN117482777A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/834—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices the flow of substances to be mixed circulating in a closed circuit, e.g. from a container through valve, driving means, metering means or dispensing means, e.g. 3-way valve, and back to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/38—Mixing of asphalt, bitumen, tar or pitch or their ingredients
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Road Paving Machines (AREA)

Abstract

The invention discloses warm mix foam asphalt foaming equipment and a using method thereof, which belong to the technical field of warm mix foam asphalt, and comprise a water supply system, a monitoring system and a spraying system which are sequentially arranged; the water supply system comprises a water tank and an atomizer, a first ball valve, a second ball valve and a third ball valve are arranged at the bottom of the water tank, and the atomizer is connected with the third ball valve; the monitoring system comprises a pressure gauge, a pressure sensor and a flowmeter which are sequentially arranged; the spraying system comprises a first electromagnetic gate valve, a first one-way valve, a second one-way valve, a spray gun and a foaming box which are sequentially arranged, wherein the spray gun is arranged on a foaming pipeline and is connected into the foaming box, and water is sprayed into the foaming box through the spray gun. This equipment water supply system has disposed the atomizer, atomizes foaming water and carries out the pitch foaming after, makes hydroenergy and pitch intensive mixing, is showing and improves pitch foaming effect to can guarantee that the spray gun is not blocked, reduce the maintenance cost of equipment.

Description

Warm mix foam asphalt foaming equipment and application method thereof
Technical Field
The invention belongs to the technical field of warm mix foamed asphalt, and particularly relates to warm mix foamed asphalt foaming equipment and a using method thereof.
Background
The foam asphalt warm mixing technology is to add a certain proportion of water into high-temperature asphalt, the water is vaporized rapidly when meeting heat, the volume of the water expands rapidly, foam asphalt is generated, and the asphalt is sprayed into a mixing cylinder in the form of foam asphalt and mixed with aggregate to form asphalt mixture. Compared with asphalt, the foamed asphalt has lower viscosity, but the workability is increased, so that the foamed asphalt can fully wrap the aggregate at a lower temperature, the mixing temperature of the asphalt mixture is reduced, and the production of the foamed asphalt warm mix mixture is realized.
Because the production cost of the warm mix foam asphalt is low, the operation is simpler, and the warm mix foam asphalt is widely focused and accepted by asphalt manufacturers, but the method needs to be provided with special foaming equipment, has higher requirements on the foaming equipment, needs to set parameters of the equipment in advance, and accurately controls the consumption of asphalt and water in the foaming process. In addition, most domestic manufacturers adopt intermittent asphalt mixture production equipment, and do not have warm-mix asphalt foaming equipment matched with the intermittent asphalt mixture production equipment, so that asphalt cannot be foamed and sprayed into a mixing cylinder in a large quantity, intensively and intermittently in a very short time. Meanwhile, the existing hot-mix asphalt foaming equipment adopts a mode of directly spraying water into an asphalt foaming box for foaming, after the foaming water is gasified, part of small particles are easy to block a spray gun, and the water can only contact the surface of asphalt, so that the final foaming effect is affected.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides warm mix foam asphalt foaming equipment and a using method thereof, so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the warm mix foam asphalt foaming equipment comprises a water supply system, a monitoring system and a spraying system which are sequentially arranged;
the water supply system comprises a water tank and an atomizer, a liquid level meter and a floating ball liquid level switch are sequentially connected to the upper side of the water tank, a first ball valve, a second ball valve and a third ball valve are arranged at the bottom of the water tank, the atomizer is connected with the third ball valve, a micro-opening type safety valve is arranged at the lower end of the atomizer, and the micro-opening type safety valve is connected with the first ball valve to form a first backflow channel;
the monitoring system comprises a pressure gauge, a pressure sensor and a flowmeter which are sequentially arranged, and the pressure gauge is connected with the micro-start type safety valve;
the spraying system comprises a first electromagnetic gate valve, a first one-way valve, a second one-way valve, a spray gun and a foaming box which are sequentially arranged, wherein the spray gun is arranged on a foaming pipeline and is connected into the foaming box, and water is sprayed into the foaming box through the spray gun.
In a preferred embodiment of the invention, the top of the water tank is provided with an access hole, and the side surface of the water tank is provided with a filter, a second electromagnetic gate valve and a fourth ball valve.
In a preferred embodiment of the present invention, the filter, the second electromagnetic gate valve and the fourth ball valve are sequentially connected.
In a preferred embodiment of the invention, a variable frequency motor is arranged at the bottom of the atomizer, a rotary rod is arranged at the driving end of the variable frequency motor, and the variable frequency motor drives the rotary rod to pressurize water.
In a preferred embodiment of the present invention, the flow meter is externally connected with a fifth ball valve, a sixth ball valve and a flow integrating instrument.
In a preferred embodiment of the present invention, a second return passage is formed between the sixth ball valve and the first solenoid valve and between the sixth ball valve and the water tank.
In a preferred embodiment of the present invention, a second electromagnetic gate valve is disposed on the second return channel.
In a preferred embodiment of the invention, the top of the foaming box is provided with a feed inlet, and the bottom of the foaming box is provided with a discharge outlet.
The invention also discloses a using method of the warm mix foam asphalt foaming equipment, which comprises the following steps:
s1, keeping a third ball valve, a micro-opening type safety valve, a sixth ball valve, a first electromagnetic gate valve, a first one-way valve and a second one-way valve to be opened, and keeping other valves in a closed state to enable water in a water tank to flow out smoothly;
s2, the variable frequency motor rotates according to a set frequency to drive the rotating rod to rotate, and the foaming water is guided into the atomizer to be atomized while being pressurized;
s3, the atomized water sequentially passes through a pressure gauge, a pressure sensor and a flowmeter to detect water pressure and flow so as to ensure accurate water quantity;
s4, spraying foaming water into the foaming box through the first electromagnetic gate valve, the first one-way valve and the second one-way valve in sequence by the spray head, and introducing asphalt into the foaming box through a feed inlet at the top of the foaming box at the moment to prepare the warm mix foam asphalt.
In a preferred embodiment of the present invention, the foaming temperature in the foaming chamber is 120-150 ℃.
The invention solves the defects existing in the background technology, and has the following beneficial effects:
(1) The equipment has small volume, light weight, simple and practical structure, simple and convenient operation and control, and can be matched with intermittent warm mix asphalt foaming technology production equipment for use;
(2) The water supply system of the equipment is provided with the atomizer, and the foaming water is atomized and then subjected to asphalt foaming, so that the water energy and the asphalt are fully mixed, the asphalt foaming effect is obviously improved, the spray gun is prevented from being blocked, the equipment maintenance frequency is reduced, and the equipment maintenance cost is reduced;
(3) The device is provided with the flowmeter and the second backflow channel, and can accurately control the foaming water consumption and simultaneously enable the redundant water to flow back into the water tank for recycling, so that the consumption of water resources is saved.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic view of the overall structure of a preferred embodiment of the present invention;
FIG. 2 is a flow chart of a preferred embodiment of the present invention;
in the figure: 1. a water tank; 2. a liquid level gauge; 3. an access opening; 4. a float ball liquid level switch; 5. a filter; 6. a second solenoid gate valve; 7. a fourth ball valve; 8. a first ball valve; 9. a second ball valve; 10. a third ball valve; 11. an atomizer; 12. a rotating rod; 13. a variable frequency motor; 14. a micro-opening safety valve; 15. a pressure gauge; 16. a pressure sensor; 17. a flow integrating instrument; 18. a flow meter; 19. a fifth ball valve; 20. a sixth ball valve; 21. a second solenoid gate valve; 22. a first solenoid gate valve; 23. a first one-way valve; 24. a second one-way valve; 25. a spray gun; 26. a foaming box; 27. a feed inlet; 28. and a discharge port.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Example 1
As shown in FIG. 1, the embodiment provides warm mix foamed asphalt foaming equipment which has small volume, light weight, simple and practical structure and simple and convenient operation control, and can be matched with intermittent warm mix asphalt foaming technology production equipment for use.
The foaming equipment of this embodiment includes water supply system, monitoring system and sprinkler system that sets gradually.
The water supply system comprises a water tank 1 and an atomizer 11, wherein a liquid level meter 2 and a floating ball liquid level switch 4 are sequentially connected to the upper side of the water tank 1, a first ball valve 8, a second ball valve 9 and a third ball valve 10 are arranged at the bottom of the water tank 1, the atomizer 11 is connected with the third ball valve 10, a micro-start type safety valve 14 is arranged at the lower end of the atomizer 11, the micro-start type safety valve 14 is connected with the first ball valve 8 to form a first backflow channel, the liquid level meter 2 is an electrohydraulic level meter 2 in the embodiment, the water level in the water tank 1 is monitored in real time, the floating ball liquid level switch 4 is a weight type floating ball liquid level switch 4, the floating ball liquid level switch 4 is matched with the liquid level meter 2, the water level in the water tank 1 is monitored jointly, whether dirty and dirty objects exist in the water tank 1 or not is detected by the water supply system, when the dirty objects exist in the water tank 1, the dirty objects are discharged in the water tank 1 through opening the second ball valve 9, the water is guaranteed to be clean, when the clean water in the water tank 1 is confirmed, the water in the water tank 1 is clean and the dirty objects are confirmed, the third ball valve 10 is opened, and the water enters the atomizer 11 for atomization treatment.
Further, in this embodiment, a variable frequency motor 13 is disposed at the bottom of the atomizer 11, a rotating rod 12 is disposed at the driving end of the variable frequency motor 13, and the variable frequency motor 13 drives the rotating rod 12 to pressurize water, so that the water enters the atomizer 11 for atomization treatment.
In this embodiment, the top of the water tank 1 is provided with an access opening 3, the side is provided with a filter 5, a second electromagnetic gate valve 216 and a fourth ball valve 7, the filter 5, the second electromagnetic gate valve 216 and the fourth ball valve 7 are sequentially connected, when the water tank 1 is polluted, the second electromagnetic gate valve 216 and the fourth ball valve 7 are opened, and the filter 5 filters water so as to perform sewage disposal in the water tank 1, thereby ensuring that the foaming water is clean and free of impurities.
The monitoring system comprises a pressure gauge 15, a pressure sensor 16 and a flowmeter 18 which are sequentially arranged, wherein the pressure gauge 15 is connected with a micro-start type safety valve 14, under the cooperation of the pressure gauge 15, the pressure sensor 16 and the flowmeter 18, the water pressure and the flow rate of foaming water are detected, when the flow rate is too small, a fifth ball valve 19 can be opened to supplement water, if the flow rate is too large, a second electromagnetic gate valve 216 can be opened, and redundant foaming water flows back to the water tank 1 through a second backflow channel.
Specifically, the flow meter 18 is externally connected with a fifth ball valve 19, a sixth ball valve 20 and a flow integrating instrument 17, a second backflow channel is formed between the sixth ball valve 20 and the first electromagnetic gate valve 22 and the water tank 1, the flow integrating instrument 17 can monitor and calculate the flow of the foaming water, a second electromagnetic gate valve 216 is arranged on the second backflow channel, and the second electromagnetic gate valve 216 can control the second backflow channel.
In this embodiment, the spraying system includes a first electromagnetic gate valve 22, a first check valve 23, a second check valve 24, a spray gun 25 and a foaming box 26 which are sequentially arranged, the spray gun 25 is installed on a foaming pipeline and is connected into the foaming box 26, water is sprayed into the foaming box 26 through the spray gun 25, a feed inlet 27 is arranged at the top of the foaming box 26, and a discharge outlet 28 is arranged at the bottom of the foaming box.
Example two
As shown in fig. 2, this embodiment discloses a method for using a warm mix foamed asphalt foaming device, which includes the following steps:
s1, keeping the third ball valve 10, the micro-opening type safety valve 14, the sixth ball valve 20, the first electromagnetic gate valve 22, the first one-way valve 23 and the second one-way valve 24 to be opened, and keeping the other valves in a closed state to enable water in the water tank 1 to flow out smoothly;
s2, a variable frequency motor 13 rotates according to a set frequency to drive a rotating rod 12 to rotate, and the foaming water is guided into an atomizer 11 to be atomized while being pressurized;
s3, the atomized water sequentially passes through the pressure gauge 15, the pressure sensor 16 and the flowmeter 18 to detect the water pressure and the flow rate so as to ensure the water quantity to be accurate;
s4, the foaming water sequentially passes through the first electromagnetic gate valve 22, the first one-way valve 23 and the second one-way valve 24, and is sprayed into the foaming box 26 by the spray head, and at the moment, asphalt is guided into the foaming box 26 through the feed inlet 27 at the top of the foaming box 26, so that the warm-mix foamed asphalt is prepared.
In the method of the embodiment, before foamed asphalt is prepared, whether pollutant residues exist in the water tank 1 or not is detected, if yes, the second ball valve 9 for pollution discharge is opened for pollution discharge of the water tank 1, the purity of foaming water is ensured, and if no, the second ball valve 9 is kept closed, then the third ball valve 10, the micro-opening type safety valve 14, the sixth ball valve 20, the first electromagnetic gate valve 22, the first check valve 23 and the second check valve 24 are kept open, and the rest valves are kept in a closed state. When the foaming equipment receives a foaming instruction sent by the control system, the observation liquid level meter 2 determines the water quantity in the water tank 1, and when the water is deficient, the second electromagnetic gate valve 216 and the fourth ball valve 7 are opened to perform water supplementing operation, and impurities are filtered by the filter 5 and then flow into the water tank 1. The foaming water consumption is controlled to be 1% -2% of the asphalt, the water pressure of a pumping system is set to be 0.5Mpa-1Mpa, a variable frequency motor 13 rotates according to set frequency to drive a rotating rod 12 to rotate, and the foaming water is pressurized and simultaneously sent to an atomizer 11 for atomization. The atomized foaming water enters a monitoring system after being pressurized by a pumping system, the water pressure and the flow are detected sequentially through a pressure gauge 15, a pressure sensor 16 and a flow meter 18, so that various parameters of the foaming water are ensured to be normal, the final foaming effect of the warm mix foam asphalt is ensured, the flow meter 18 is connected with a flow integrating meter 17, so that flow monitoring is ensured, if the flow is too small, a fifth ball valve 19 is opened for external water supplementing, if the flow is too large, a second electromagnetic gate valve 216 is opened, the excessive foaming water flows back into the water tank 1 through a return channel, if various monitoring parameters of the foaming water are normal, the foaming water is sprayed into the asphalt foaming box 26 through a spray gun 25 through a first electromagnetic gate valve 22, a first one-way valve 23 and a second one-way valve 24, meanwhile asphalt enters the asphalt foaming box 26 through an upper asphalt feed port 27, and the foaming temperature is controlled to be 135 ℃ for asphalt foaming. The prepared warm mix foamed asphalt is discharged through an asphalt discharge port 28 and enters a subsequent warm mix asphalt mixture mixing system.
In this embodiment, the foaming temperature in the foaming box 26 is 120-150 ℃.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.

Claims (10)

1. The warm mix foam asphalt foaming equipment is characterized by comprising a water supply system, a monitoring system and a spraying system which are sequentially arranged;
the water supply system comprises a water tank and an atomizer, a liquid level meter and a floating ball liquid level switch are sequentially connected to the upper side of the water tank, a first ball valve, a second ball valve and a third ball valve are arranged at the bottom of the water tank, the atomizer is connected with the third ball valve, a micro-opening type safety valve is arranged at the lower end of the atomizer, and the micro-opening type safety valve is connected with the first ball valve to form a first backflow channel;
the monitoring system comprises a pressure gauge, a pressure sensor and a flowmeter which are sequentially arranged, and the pressure gauge is connected with the micro-start type safety valve;
the spraying system comprises a first electromagnetic gate valve, a first one-way valve, a second one-way valve, a spray gun and a foaming box which are sequentially arranged, wherein the spray gun is arranged on a foaming pipeline and is connected into the foaming box, and water is sprayed into the foaming box through the spray gun.
2. The warm mix foamed asphalt foaming apparatus of claim 1 wherein the top of the water tank is provided with an access opening and the sides are provided with a filter, a second solenoid gate valve and a fourth ball valve.
3. The warm mix foamed asphalt foaming apparatus of claim 2 wherein said filter, second solenoid gate valve and fourth ball valve are connected in sequence.
4. The warm mix foamed asphalt foaming apparatus according to claim 1, wherein a variable frequency motor is arranged at the bottom of the atomizer, a rotating rod is arranged at the driving end of the variable frequency motor, and the variable frequency motor drives the rotating rod to pressurize water.
5. The warm mix foamed asphalt foaming apparatus of claim 1 wherein said flow meter is externally connected with a fifth ball valve, a sixth ball valve and a flow totalizer.
6. The warm mix foamed asphalt foaming apparatus of claim 5, wherein a second return passage is formed between said sixth ball valve and said first solenoid valve and said water tank.
7. The warm mix foamed asphalt foaming apparatus of claim 6 wherein said second return channel is provided with a second electromagnetic gate valve.
8. The warm mix foamed asphalt foaming apparatus according to claim 1, wherein the top of the foaming box is provided with a feed inlet, and the bottom is provided with a discharge outlet.
9. A method for using a warm mix foamed asphalt foaming device, which is applied to the warm mix foamed asphalt foaming device of any one of claims 1 to 8, and is characterized by comprising the following steps:
s1, keeping a third ball valve, a micro-opening type safety valve, a sixth ball valve, a first electromagnetic gate valve, a first one-way valve and a second one-way valve to be opened, and keeping other valves in a closed state to enable water in a water tank to flow out smoothly;
s2, the variable frequency motor rotates according to a set frequency to drive the rotating rod to rotate, and the foaming water is guided into the atomizer to be atomized while being pressurized;
s3, the atomized water sequentially passes through a pressure gauge, a pressure sensor and a flowmeter to detect water pressure and flow so as to ensure accurate water quantity;
s4, spraying foaming water into the foaming box through the first electromagnetic gate valve, the first one-way valve and the second one-way valve in sequence by the spray head, and introducing asphalt into the foaming box through a feed inlet at the top of the foaming box at the moment to prepare the warm mix foam asphalt.
10. The method of claim 9, wherein the foaming temperature in the foaming box is 120-150 ℃.
CN202311370716.6A 2023-10-23 2023-10-23 Warm mix foam asphalt foaming equipment and application method thereof Pending CN117482777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311370716.6A CN117482777A (en) 2023-10-23 2023-10-23 Warm mix foam asphalt foaming equipment and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311370716.6A CN117482777A (en) 2023-10-23 2023-10-23 Warm mix foam asphalt foaming equipment and application method thereof

Publications (1)

Publication Number Publication Date
CN117482777A true CN117482777A (en) 2024-02-02

Family

ID=89677279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311370716.6A Pending CN117482777A (en) 2023-10-23 2023-10-23 Warm mix foam asphalt foaming equipment and application method thereof

Country Status (1)

Country Link
CN (1) CN117482777A (en)

Similar Documents

Publication Publication Date Title
CN101543669B (en) Vehicular compressed air foam fire-extinguishing system
CN201524364U (en) Vehicle compressed air foam extinguishing system
CN101342545B (en) Lubrication system of hot-tandem rolling finishing rolling unit
CN203154668U (en) Compressed gas foam proportioning device
CN107349545A (en) Machinery is pumped into formula compressed air foam extinguishing device
CN201082887Y (en) Inner-grinder spraying cooling system
CN107792387B (en) Piston type double-atomizing-nozzle water injection device and using method
CN202869944U (en) Spraying device of composite salt fog test chamber
CN113123193B (en) Asphalt multi-pipe foaming system and process
CN117482777A (en) Warm mix foam asphalt foaming equipment and application method thereof
CN116982463A (en) Water, fertilizer and pesticide integrated spray irrigation system and method
KR200449110Y1 (en) Microbubble gas­liquid mixing device
CN115725315A (en) Asphalt foaming device
CN114669170A (en) Automatic spraying deodorization device and treatment method thereof
CN216434127U (en) High-pressure atomization type asphalt foaming test device
CN212468131U (en) Device for quickly generating gas hydrate
CN204551190U (en) Use the cold renewal equipment of foamed asphalt
RU2639938C1 (en) Method for washing and preserving gas-air path of aircraft engine and device for its implementation
CN209550237U (en) Cooling device is used on a kind of steel rolling roller
CN203907207U (en) Inflammable gas synergism mixing device
CN215327909U (en) Asphalt foaming device
CN201873924U (en) Device for adding liquid state warm mixing agent for producing asphalt mixture
CN208643100U (en) A kind of atomizer being used to prepare amorphous powder
CN113063932B (en) Self-cleaning anti-blocking asphalt foaming experimental device
KR970002616B1 (en) Chemical attenuation system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination