Foam gel preparation device

Abstract

The utility model discloses a foam gel preparation device which comprises a first liquid storage tank for storing a material A and a second liquid storage tank for storing a material B, the first hydraulic proportional dosing pump is provided with a first water inlet, a first dosing port and a first mixed outlet, and the first dosing port is communicated with the first liquid storage tank; the second hydraulic proportional dosing pump is provided with a second water inlet, a second dosing port and a second mixed outlet, and the second dosing port is communicated with the second liquid storage tank; a foaming cavity and a gel cavity which are communicated with each other are formed in the foaming gel-forming assembly, the gel cavity is located on the downstream side of the foaming cavity, the foaming gel-forming assembly is provided with a first feeding port and an air inlet which are communicated with the foaming cavity, and a second feeding port and a foam gel outlet which are communicated with the gel cavity, the first feeding port is communicated with the first mixing outlet, and the second feeding port is communicated with the second mixing outlet. The air inlet is suitable for being communicated with high-pressure air, the second feeding port is communicated with the second mixing outlet, and the foam gel outlet is suitable for being communicated with a grouting drill hole.

Description

Technical Field

[0001] The utility model relates to the technical field of mine fire prevention and extinguishing, in particular to a foam gel preparation device. Background Art

[0002] In related technologies, nitrogen, inhibitor, yellow mud grouting, gel, three-phase foam and other fire prevention and extinguishing technologies are generally adopted to control mine fires and spontaneous combustion of coal. Among them, the gel has the advantages of good covering performance and strong heat absorption and cooling capacity, but its disadvantages are small diffusion range and poor fluidity; the three-phase foam has the advantages of wide diffusion range and fast fire extinguishing speed, but its foam stability is poor, the foam quickly breaks, and a large amount of water flows back out of the fire area after the foam breaks, and it cannot keep the floating coal wet for a long time, and the effect of inhibiting coal spontaneous combustion is poor.

[0003] In order to better prevent and control mine fires and spontaneous combustion of coal, in recent years, the gel and foam fire prevention and extinguishing technologies have been more and more combined to generate foam gel materials, and the foam gel materials are used for grouting or spraying towards the fire prevention and control area. The foam gel material combines the advantages of foam and gel, and at the same time can overcome the disadvantages of foam and gel when used alone.

[0004] However, the foam gel preparation device in related technologies is driven by electricity, has a large volume, is difficult to move during the fire prevention and extinguishing grouting process in the underground coal mining face, and has poor safety. Content of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a foam gel preparation device, which does not require electric drive, has a small volume, is convenient to move and has high safety.

[0006] A foam gel preparation device according to an embodiment of the present utility model includes: a first liquid storage tank for storing material A and a second liquid storage tank for storing material B; a first hydraulic proportional chemical dosing pump, the first hydraulic proportional chemical dosing pump having a first water inlet, a first chemical dosing port and a first mixing outlet, the first water inlet being adapted to communicate with a water source, the first chemical dosing port communicating with the first liquid storage tank; a second hydraulic proportional chemical dosing pump, the second hydraulic proportional chemical dosing pump having a second water inlet, a second chemical dosing port and a second mixing outlet, the second water inlet being adapted to communicate with a water source, the second chemical dosing port communicating with the second liquid storage tank; a foaming and gelling assembly, the foaming and gelling assembly being provided with a foaming chamber and a gelling chamber, the gelling chamber communicating with the foaming chamber and being located downstream of the foaming chamber, the foaming and gelling assembly having a first feed port and an air inlet communicating with the foaming chamber, and a second feed port and a foam gel outlet communicating with the gelling chamber, the first feed port communicating with the first mixing outlet, the air inlet being adapted to communicate with high-pressure gas, the second feed port communicating with the second mixing outlet, the foam gel outlet being adapted to communicate with a grouting borehole.

[0007] In addition, the foam gel preparation device according to an embodiment of the present utility model may further have the following additional technical features:

[0008] According to an embodiment of the present utility model, a foaming net is provided in the foaming chamber, and the foaming net is located at an end of the foaming chamber adjacent to the gelling chamber.

[0009] According to an embodiment of the present utility model, both the first feed port and the air inlet are provided on a circumferential wall of the foaming chamber and are opposite to each other in the radial direction of the foaming chamber.

[0010] According to an embodiment of the present utility model, a blocking member is provided in the foaming chamber, and the blocking member is located between the first feed port and the air inlet.

[0011] According to an embodiment of the present utility model, the blocking member includes a sealing cover plate and a cylindrical side cover plate, and axial ends of the side cover plate are respectively connected to the sealing cover plate and an inner end wall of the foaming chamber away from the gelling chamber.

[0012] According to an embodiment of the present utility model, the foam gel forming assembly includes: a housing, the housing includes a side peripheral wall, a first end wall and a second end wall, the side peripheral wall includes a foaming section and a gel section connected to each other axially, the first end wall is connected to an axial end of the foaming section away from the gel section, and the second end wall is connected to an axial end of the gel section away from the foaming section; a partition plate, the partition plate is arranged in the housing and is located between the foaming section and the gel section, a foaming cavity is defined between the foaming section, the first end wall and the partition plate, a gel cavity is defined between the gel section, the second end wall and the partition plate, the partition plate is provided with a plurality of through holes spaced apart from each other, the foaming cavity is communicated with the gel cavity through the through holes, the first feed port and the air inlet are both arranged on the foaming section, and the foam gel outlet is arranged on the second end wall; a plug tube, the plug tube is inserted into the housing along the axial direction of the housing, the plug tube includes an extending section located outside the housing and an inserted section located inside the housing, the extending section extends from the first end wall towards the side away from the second end wall, and one end of the inserted section away from the extending section passes through the foaming cavity and extends into the gel cavity, and one end of the extending section away from the inserted section forms the second feed port.

[0013] According to an embodiment of the present utility model, an atomizing nozzle is provided at one end of the inserted section away from the extending section.

[0014] According to an embodiment of the present utility model, the foam gel forming assembly further includes an extension connecting pipe, one end of the extension connecting pipe is connected to the foam gel outlet, and the other end of the extension connecting pipe is adapted to communicate with the grouting borehole.

[0015] According to an embodiment of the present utility model, the foam gel preparation device further includes a bracket, and the first hydraulic proportional chemical dosing pump, the second hydraulic proportional chemical dosing pump and the foam gel forming assembly are all supported on the bracket.

[0016] The foam gel preparation device according to the embodiment of the present utility model automatically sucks material A and material B respectively by using the first hydraulic proportional dosing pump and the second hydraulic proportional dosing pump, so as to realize the automatic quantitative proportioning of material A and water, and the automatic quantitative proportioning of material B and water. Both the first hydraulic proportional dosing pump and the second hydraulic proportional dosing pump use water pressure as the power for sucking materials, without the need to connect to a power supply. And regardless of how the pressure and flow rate of the water flow change, they can maintain a constant proportion of sucking materials, so that the proportioning accuracy between material A and water and between material B and water is high and the proportioning is stable. Further, the foam gel preparation device according to the embodiment of the present utility model does not require electric drive, has a small volume, is light in weight, is convenient to move and has high safety, so that the construction efficiency of fire prevention and extinguishment can be improved, the labor intensity can be reduced, the construction process is simple and efficient, and the construction in a narrow underground space can be satisfied.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a top view of the foam gel preparation device according to the embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a side view of the foam gel preparation device shown in ;

[0021] Figure 3 is Figure 1 a schematic connection diagram between internal components of the foam gel preparation device shown in ;

[0022] Figure 4 is Figure 3 a cross-sectional view of the foam-forming and gel-forming assembly shown in.

[0023] REFERENCE MARKS:

[0024] Foam gel preparation device 100; first liquid storage tank 10; second liquid storage tank 20; first hydraulic proportional chemical dosing pump 30; first water inlet 31; first chemical dosing port 32; first mixing outlet 33; second hydraulic proportional chemical dosing pump 40; second water inlet 41; second chemical dosing port 42; second mixing outlet 43; foaming and gelling assembly 50; foaming chamber 50a; first feed inlet 50a1; air inlet 50a2; gel chamber 50b; second feed inlet 50b1; foam gel outlet 50b2; housing 51; side peripheral wall 511; foaming section 5111; gel section 5112; first end wall 512; second end wall 513; partition plate 52; through hole 521; insertion tube 53; extending section 531; inserted section 532; foaming net 54; blocking member 55; cover plate 551; side cover plate 552; atomizing nozzle 56; extension connecting tube 57; distributor 58; inlet end 581; outlet end 582; first connecting tube 591; second connecting tube 592; bracket 60; water flow regulating valve 70; air pressure regulating valve 80; tee structure 90. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0026] Reference is made below to Figures 1-4 describe the foam gel preparation device 100 according to an embodiment of the present invention.

[0027] Reference is made to Figures 1-3 As shown, the foam gel preparation device 100 according to an embodiment of the present invention includes: a first liquid storage tank 10, a second liquid storage tank 20, a first hydraulic proportional chemical dosing pump 30, a second hydraulic proportional chemical dosing pump 40, and a foaming and gelling assembly 50.

[0028] The first liquid storage tank 10 is used to store the A material, and the second liquid storage tank 20 is used to store the B material. In the embodiments of the present application, both the A material and the B material are liquid materials.

[0029] The first hydraulic proportional chemical dosing pump 30 has a first water inlet 31, a first chemical dosing port 32, and a first mixing outlet 33. The first water inlet 31 is adapted to communicate with a water source, and the first chemical dosing port 32 communicates with the first liquid storage tank 10. In this way, water can enter the first hydraulic proportional chemical dosing pump 30 through the first water inlet 31, and the A material stored in the first liquid storage tank 10 can enter the first hydraulic proportional chemical dosing pump 30 through the first chemical dosing port 32.

[0030] It should be noted that in the embodiments of the present application, the "water source" can be surface water or underground water. The first water inlet 31 can be connected to a water supply device (such as a water pump, etc.) or a pipeline providing the water source, so as to realize the connection between the first water inlet 31 and the water source. Optionally, when the foam gel preparation device 100 is used for underground operations, the first water inlet 31 can be directly connected to an underground high-pressure water pipe, and high-pressure water flow is passed through the high-pressure water pipe, so as to realize the connection between the first water inlet 31 and the water source.

[0031] The second hydraulic proportional chemical dosing pump 40 has a second water inlet 41, a second chemical dosing port 42 and a second mixing outlet 43. The second water inlet 41 is adapted to be connected to the water source, and the second chemical dosing port 42 is connected to the second liquid storage tank 20. In this way, water can enter the second hydraulic proportional chemical dosing pump 40 through the second water inlet 41, and the B material stored in the second liquid storage tank 20 can enter the second hydraulic proportional chemical dosing pump 40 through the second chemical dosing port 42. Similarly, the second water inlet 41 is connected to a water supply device (such as a water pump, etc.) or a pipeline providing the water source, so as to realize the connection between the second water inlet 41 and the water source. Optionally, when the foam gel preparation device 100 is used for underground operations, the second water inlet 41 can also be directly connected to an underground high-pressure water pipe, and high-pressure water flow is passed through the high-pressure water pipe, so as to realize the connection between the second water inlet 41 and the water source.

[0032] Optionally, please refer to Figures 1-3 , the first water inlet 31 and the second water inlet 41 can be simultaneously connected to the water source through a tee structure 90, so as to realize the connection between the first water inlet 31 and the water source, and the connection between the second water inlet 41 and the water source. In this way, the connection structure between the first hydraulic proportional chemical dosing pump 30, the second hydraulic proportional chemical dosing pump 40 and the water source can be simplified. Of course, the present application is not limited to this. In some other examples, the first water inlet 31 and the second water inlet 41 can be separately connected to the water source.

[0033] Furthermore, please continue to refer to Figures 1-3 , a water flow regulating valve 70 is arranged between the water source and the tee structure 90. The water flow regulating valve 70 is used to regulate the water pressure of the water entering the first hydraulic proportional chemical dosing pump 30 and the second hydraulic proportional chemical dosing pump 40, so as to avoid damaging the first hydraulic proportional chemical dosing pump 30 and the second hydraulic proportional chemical dosing pump 40 when the water source pressure is too high.

[0034] The first hydraulic proportional chemical dosing pump 30 and the second hydraulic proportional chemical dosing pump 40 are both hydraulic proportional chemical dosing pumps. The hydraulic proportional chemical dosing pump does not need to be connected to a power supply. It uses water pressure as the driving force for work and utilizes the kinetic energy of water flow to drive the pump to work. The hydraulic proportional chemical dosing pump can operate automatically when there is water flow passing through it. The amount of material it sucks in is always proportional to the volume of water entering the hydraulic proportional chemical dosing pump and is independent of the changes in water pressure and water flow rate. Regardless of how the water pressure and flow rate change, it can suck in materials in a constant proportion until the water flow stops. The water flow delivered by the water source towards the first water inlet 31 and the second water inlet 41 is pressurized water flow, and this pressurized water flow serves as the driving force for the first hydraulic proportional chemical dosing pump 30 and the second hydraulic proportional chemical dosing pump 40 to automatically suck in materials.

[0035] Specifically, the pressurized water flow from the water source enters the first hydraulic proportional chemical dosing pump 30 through the first water inlet 31. Driven by the pressurized water flow, the first hydraulic proportional chemical dosing pump 30 can automatically suck in the A material in the first liquid storage tank 10 in a proportional and quantitative manner from the first chemical dosing port 32. After the A material sucked in from the first chemical dosing port 32 and the water entering from the first water inlet 31 are mixed in the first hydraulic proportional chemical dosing pump 30 to form a mixed liquid of A material and water, it flows out through the first mixing outlet 33.

[0036] Similarly, the pressurized water flow from the water source enters the second hydraulic proportional chemical dosing pump 40 through the second water inlet 41. Driven by the pressurized water flow, the second hydraulic proportional chemical dosing pump 40 can automatically suck in the B material in the second liquid storage tank 20 in a proportional and quantitative manner from the second chemical dosing port 42. After the B material sucked in from the second chemical dosing port 42 and the water entering from the second water inlet 41 are mixed in the second hydraulic proportional chemical dosing pump 40 to form a mixed liquid of B material and water, it flows out through the second mixing outlet 43.

[0037] Please refer to Figure 4 And in combination with referring to Figures 1-3 , the foam-forming and gelling assembly 50 is provided with a foaming cavity 50a and a gelling cavity 50b. The gelling cavity 50b is communicated with the foaming cavity 50a and is located on the downstream side of the foaming cavity 50a. The foam-forming and gelling assembly 50 has a first feed inlet 50a1 and an air inlet 50a2 communicated with the foaming cavity 50a, as well as a second feed inlet 50b1 and a foam gel outlet 50b2 communicated with the gelling cavity 50b. The air inlet 50a2 is adapted to be communicated with high-pressure gas, and the high-pressure gas can be high-pressure air or high-pressure nitrogen, etc.

[0038] It should be noted that the air inlet 50a2 can be connected to a gas supply device (such as an air compressor or a nitrogen generator) or a pipeline providing high-pressure gas, so as to achieve the connection between the air inlet 50a2 and the high-pressure gas. Optionally, when the foam gel preparation device 100 is used for underground operations, the air inlet 50a2 can be directly connected to the underground compressed air pipeline, and the compressed air is passed through the compressed air pipeline, so as to achieve the connection between the air inlet 50a2 and the high-pressure gas.

[0039] Optionally, please refer to Figures 1-3 , a pneumatic pressure regulating valve 80 can be provided between the high-pressure gas and the air inlet 50a2. The pneumatic pressure regulating valve 80 is used to regulate the pressure of the gas entering the foaming chamber 50a. The first feed port 50a1 is communicated with the first mixing outlet 33, the second feed port 50b1 is communicated with the second mixing outlet 43, and the foam gel outlet 50b2 is adapted to be communicated with a grouting hole in a fire prevention and control area (such as a fired area in a coal mine goaf).

[0040] Specifically, when the foam gel preparation device 100 is working, the mixture of material A and water flowing out from the first mixing outlet 33 enters the foaming chamber 50a through the first feed port 50a1, the high-pressure gas enters the foaming chamber 50a through the air inlet 50a2. The mixture of material A and water foams under the action of the high-pressure gas to generate foam and flows into the gel chamber 50b. The mixture of material B and water flowing out from the second mixing outlet 43 enters the gel chamber 50b through the second feed port 50b1 and combines with the foam to generate foam gel. The generated foam gel flows out through the foam gel outlet 50b2 and is transported into the grouting hole, so as to inject the foam gel prepared by the foam gel preparation device 100 into the grouting hole, thereby realizing fire prevention and control.

[0041] In summary, according to the foam gel preparation device 100 of the embodiment of the present invention, by using the first hydraulic proportional dosing pump 30 and the second hydraulic proportional dosing pump 40 to respectively suck material A and material B, the automatic quantitative ratio of material A to water and the automatic quantitative ratio of material B to water are realized. Both the first hydraulic proportional dosing pump 30 and the second hydraulic proportional dosing pump 40 use water pressure as the power for sucking materials, without connecting to a power supply. And no matter how the pressure and flow rate of the water flow change, the materials can be sucked in a constant ratio, so that the ratio accuracy between material A and water and between material B and water is high and the ratio is stable. Further, the foam gel preparation device 100 of the embodiment of the present invention does not require electric drive, has a small volume, a light weight, is convenient to move and has high safety, so as to improve the construction efficiency of fire prevention and extinguishment, reduce the labor intensity, the construction process is simple and efficient, and it can meet the construction in a narrow underground space.

[0042] In an embodiment of the present invention, please refer to Figures 1-2, the foam gel preparation device 100 further includes a bracket 60, and the first hydraulic proportional dosing pump 30, the second hydraulic proportional dosing pump 40 and the foam-forming and gel-forming assembly 50 are all supported on the bracket 60. In this way, the foam gel preparation device 100 forms an integral structure, which is compact and convenient to move. At the same time, the bracket 60 can also protect components such as the first hydraulic proportional dosing pump 30, the second hydraulic proportional dosing pump 40 and the foam-forming and gel-forming assembly 50.

[0043] Please refer to Figure 4 , a foaming net 54 is provided in the foaming cavity 50a, and the foaming net 54 is located at one end of the foaming cavity 50a adjacent to the gel cavity 50b. By providing the foaming net 54, the mixture of material A and water foams more fully in the foaming cavity 50a, with a high foaming rate and better foaming effect.

[0044] In an embodiment of the present invention, please refer to Figure 3 and Figure 4 , the first feed port 50a1 and the air inlet 50a2 are both provided on the side peripheral wall 511 of the foaming cavity 50a and are opposite to each other in the radial direction of the foaming cavity 50a, so that the overall structure of the foam-forming and gel-forming device is compact.

[0045] Further, please continue to refer to Figure 4 , a blocking member 55 is provided in the foaming cavity 50a, and the blocking member 55 is located between the first feed port 50a1 and the air inlet 50a2. By providing the blocking member 55, it can be avoided that the high-pressure gas cannot enter the foaming cavity 50a from the air inlet 50a2 due to the excessive pressure of the mixture of material A and water entering from the first feed port 50a1. Optionally, please continue to refer to Figure 4 , the blocking member 55 includes a cover plate 551 and a cylindrical side cover plate 552, and the two axial ends of the side cover plate 552 are respectively connected to the cover plate 551 and the inner end wall of the foaming cavity 50a far from the gel cavity 50b.

[0046] In an embodiment of the present invention, please refer to Figure 3 and Figure 4 , the foam-forming and gel-forming assembly 50 includes a housing 51, a partition plate 52 and an insertion tube 53. The housing 51 includes a side peripheral wall 511, a first end wall 512 and a second end wall 513, and the side peripheral wall 511 includes a foaming section 5111 and a gel section 5112 that are axially connected to each other. Optionally, please continue to refer to Figure 3 and Figure 4, the foaming section 5111 and the gelling section 5112 can be connected by a flange. Of course, the present application is not limited to this. In some other embodiments, the foaming section 5111 and the gelling section 5112 can be connected by bonding, clamping, etc. Or in some other embodiments, the foaming section 5111 and the gelling section 5112 are integrally formed. The first end wall 512 is connected to the axial end of the foaming section 5111 away from the gelling section 5112, and the second end wall 513 is connected to the axial end of the gelling section 5112 away from the foaming section 5111. The partition plate 52 is disposed in the housing 51 and between the foaming section 5111 and the gelling section 5112. A foaming cavity 50a is defined between the foaming section 5111, the first end wall 512 and the partition plate 52, and a gelling cavity 50b is defined between the gelling section 5112, the second end wall 513 and the partition plate 52. The partition plate 52 is provided with a plurality of through holes 521 spaced apart from each other, and the foaming cavity 50a communicates with the gelling cavity 50b through the through holes 521. The first feed port 50a1 and the air inlet 50a2 are both provided on the foaming section 5111, and the foam gel outlet 50b2 is provided on the second end wall 513. The insertion tube 53 is inserted into the housing 51 along the axial direction of the housing 51. The insertion tube 53 includes an extension section 531 located outside the housing 51 and an insertion section 532 located inside the housing 51. The extension section 531 extends from the first end wall 512 toward the side away from the second end wall 513. One end of the insertion section 532 away from the extension section 531 passes through the foaming cavity 50a and extends into the gelling cavity 50b, and a second feed port 50b1 is formed at the end of the extension section 531 away from the insertion section 532. The overall structure of the foaming and gelling assembly 50 is compact, and the foaming and gelling effect is good.

[0047] Further, please continue to refer to Figure 4 , an atomizing nozzle 56 is provided at one end of the insertion section 532 away from the extension section 531. Optionally, the atomizing nozzle 56 can be a mine atomizing nozzle. By providing the atomizing nozzle 56, the mixed liquid of material B and water is sprayed into the gelling cavity 50b after atomization and combined with the foam entering the gelling cavity 50b from the foaming cavity 50a, and the reaction between the two is more sufficient, thereby increasing the output of the foam gel.

[0048] In an embodiment of the present utility model, please refer to Figure 3 and Figure 4 , the foaming and gelling assembly 50 further includes an extension connecting pipe 57. One end of the extension connecting pipe 57 is connected to the foam gel outlet 50b2, and the other end of the extension connecting pipe 57 is adapted to communicate with a grouting borehole. By providing the extension connecting pipe 57, the connection between the foam gel outlet 50b2 and the grouting borehole can be made more convenient. Optionally, the extension connecting pipe 57 and the housing 51 can be integrally formed or can be separately formed.

[0049] In an embodiment of the present utility model, please refer to Figure 3 andFigure 4 In addition, the foam-forming and gelling assembly 50 further includes a first connecting pipe 591 and a second connecting pipe 592. One end of the first connecting pipe 591 is connected to the first feed port 50a1, and the other end of the first connecting pipe 591 is communicated with the first mixing outlet 33. One end of the second connecting pipe 592 is communicated with the air inlet 50a2, and the other end of the second connecting pipe 592 is connected to high-pressure gas. By providing the first connecting pipe 591 and the second connecting pipe 592, the connection between the first feed port 50a1 and the first mixing outlet 33, and the connection between the air inlet 50a2 and high-pressure gas can be facilitated. The shapes of the first connecting pipe 591 and the second connecting pipe 592 can be arbitrarily selected according to needs. Exemplarily, the first connecting pipe 591 and the second connecting pipe 592 can be formed in an arc tube shape.

[0050] Optionally, please refer to Figure 3 and Figure 4 In addition, the foam-forming and gelling assembly 50 may further include a dispenser 58. The dispenser 58 has an inlet end 581 and a plurality of outlet ends 582. The inlet end 581 is connected to the extension connecting pipe 57, and the plurality of outlet ends 582 are adapted to be correspondingly connected to a plurality of grouting drill holes one by one. In this way, the foam gel preparation device 100 can grout into a plurality of grouting drill holes simultaneously.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In the description of the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0053] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0054] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A foam gel preparation device, characterized in that, Comprising: A first liquid storage tank for storing material A and a second liquid storage tank for storing material B; A first hydraulic proportional chemical dosing pump having a first water inlet, a first chemical dosing port and a first mixing outlet, the first water inlet being adapted to communicate with a water source, and the first chemical dosing port communicating with the first liquid storage tank; A second hydraulic proportional chemical dosing pump having a second water inlet, a second chemical dosing port and a second mixing outlet, the second water inlet being adapted to communicate with a water source, and the second chemical dosing port communicating with the second liquid storage tank; A foaming and gelling assembly provided with a foaming chamber and a gelling chamber therein, the gelling chamber communicating with the foaming chamber and being located on the downstream side of the foaming chamber, the foaming and gelling assembly having a first feed port and an air inlet communicating with the foaming chamber, and a second feed port and a foam gel outlet communicating with the gelling chamber, the first feed port communicating with the first mixing outlet, the air inlet being adapted to communicate with high-pressure gas, the second feed port communicating with the second mixing outlet, and the foam gel outlet being adapted to communicate with a grouting borehole; 2. The foam gel preparation device according to claim 1, wherein A foaming net is provided in the foaming chamber, and the foaming net is located at one end of the foaming chamber adjacent to the gelling chamber; 3. The foam gel preparation device according to claim 1, characterized in that, Both the first feed port and the air inlet are provided on the circumferential wall of the foaming chamber and are opposite to each other in the radial direction of the foaming chamber; 4. The foam gel preparation device according to claim 3, characterized in that A blocking member is provided in the foaming chamber, and the blocking member is located between the first feed port and the air inlet; 5. The foam gel preparation device according to claim 4, characterized in that, The blocking member includes a cover plate and a cylindrical side cover plate, and the two axial ends of the side cover plate are respectively connected to the cover plate and the inner end wall of the foaming chamber away from the gelling chamber; 6. The foam gel preparation device according to any one of claims 1 to 5, characterized in that, The foaming and gelling assembly includes: A housing including a circumferential wall, a first end wall and a second end wall, the circumferential wall including a foaming section and a gelling section connected to each other axially, the first end wall being connected to one axial end of the foaming section away from the gelling section, and the second end wall being connected to one axial end of the gelling section away from the foaming section; A partition plate provided in the housing and located between the foaming section and the gelling section, a foaming chamber being defined between the foaming section, the first end wall and the partition plate, a gelling chamber being defined between the gelling section, the second end wall and the partition plate, the partition plate being provided with a plurality of through holes spaced apart from each other, the foaming chamber communicating with the gelling chamber through the through holes, the first feed port and the air inlet being both provided on the foaming section, and the foam gel outlet being provided on the second end wall; An insertion tube axially inserted into the housing along the axis of the housing, the insertion tube including an extending section located outside the housing and an inserted section located inside the housing, the extending section extending from the first end wall towards the side away from the second end wall, and one end of the inserted section away from the extending section passing through the foaming chamber and extending into the gelling chamber, and one end of the extending section away from the inserted section forming the second feed port; 7. The foam gel preparation device according to claim 6, wherein, An atomizing nozzle is provided at one end of the inserted section away from the extending section.

8. The foam gel preparation device according to claim 6, characterized in that The foaming and gelling assembly further includes an extension connecting pipe, one end of the extension connecting pipe is connected to the foam gel outlet, and the other end of the extension connecting pipe is adapted to communicate with the grouting borehole.

9. The foam gel preparation device according to claim 1, wherein It further includes a bracket, and the first hydraulic proportional chemical dosing pump, the second hydraulic proportional chemical dosing pump and the foaming and gelling assembly are all supported on the bracket.

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