A method and apparatus for formulating a liquid formulation of a foam extinguishing agent
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NINGBO NENGLIN FIRE FIGHTING EQUIP
- Filing Date
- 2026-02-09
- Publication Date
- 2026-06-09
Smart Images
Figure CN122164047A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of fire extinguishing, and in particular to a method and apparatus for preparing a liquid formulation of foam extinguishing agent. Background Technology
[0002] Most fire extinguishing agents produced in my country are dry powder. Dry powder fire extinguishing agents have significant limitations: they cannot handle large-area fires, lack the ability to prevent reignition, and are harmful to human health. Currently available alcohol-resistant aqueous film-forming foam (AFCF) fire extinguishing agents are only suitable for use when mixed with fresh water, not with seawater. The fluorocarbon surfactants and anti-burning agents used in these agents are unsuitable for mixing with seawater. Once mixed with seawater, the properties of the fluorocarbon surfactants and anti-burning agents become extremely unstable, significantly impacting foam performance and fire extinguishing capabilities.
[0003] The hazardous chemicals industry has high requirements for fire extinguishing agents, and foam extinguishing agents are generally used to isolate combustibles from external oxygen, thereby achieving the purpose of extinguishing fires. However, existing foam extinguishing agents often suffer from poor foam stability and are prone to breakage, resulting in reduced sealing and ineffective fire extinguishing. Some fluorine-free foam extinguishing agents also exhibit poor foaming performance, leading to low foam quantity and low extinguishing efficiency. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention provides a method and apparatus for preparing a liquid formulation of foam fire extinguishing agent.
[0005] This invention discloses a method for preparing a liquid foam fire extinguishing agent, wherein the fire extinguishing agent is composed of the following raw materials: lauramidopropyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea, and deionized water, comprising the following preparation steps: Step 1: Add lauramide propyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, and urea sequentially into the mixing drum and mix thoroughly to obtain the mixture. Step 2: Add deionized water to the mixing cylinder to dissolve the deionized water in the mixture and obtain the reaction solution; Step 3: The reaction liquid is drained and allowed to stand for a certain period of time to defoam, resulting in a foam extinguishing agent. The foam extinguishing agent is prepared using lauramidopropyl betaine, organosilicon surfactants, alkyl glycosides, fatty amine polyoxyethylene ethers, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea, and deionized water as raw materials. The resulting foam extinguishing agent product exhibits good foaming properties and high foam stability, capable of generating a large amount of foam in a short time. This foam is used to block contact between combustible materials and outside air, improving the fire extinguishing effect.
[0006] Preferably, in step one, the raw materials of the fire extinguishing agent are composed of the following mass percentages: 5%-7% lauramidopropyl betaine, 5%-7% organosilicon surfactant, 5%-7% alkyl glycoside, 20%-30% fatty amine polyoxyethylene ether, 2%-4% sodium dodecyl sulfonate, 1%-4% polyacrylamide, 1%-4% xanthan gum, 2%-5% sodium carboxymethyl cellulose, 3%-8% sodium alginate, 1%-6% urea, and the balance being deionized water.
[0007] Preferably, in steps one and two, the ambient temperature of the mixing cylinder is 15-45 degrees Celsius.
[0008] Preferably, the resting time in step three is 30-120 minutes.
[0009] This invention discloses a foam fire extinguishing agent liquid formulation mixing device, comprising a base plate, support legs, a mixing cylinder, a feed hopper, a sampling tube, and a sampling valve. The mixing cylinder is mounted on the top of the base plate via the support legs. A feed hopper is provided at the input end of the mixing cylinder. A sampling tube is provided on the outer wall of the mixing cylinder, and a sampling valve is installed on the sampling tube. The device also includes a drive assembly, a stirring assembly, a mixing assembly, and a water supply assembly. A mixing assembly is provided at the bottom of the mixing cylinder, a stirring assembly is installed inside the mixing cylinder, and a drive assembly is installed at the top of the mixing cylinder. The drive assembly is used for forward and reverse rotation of the stirring assembly. Forward rotation of the stirring assembly is used to stir the powder, and reverse rotation of the stirring assembly is used to activate the mixing assembly to mix the liquid material. The water supply component is used for water injection into the mixing drum. In use, various granular materials are injected into the mixing drum through the feed hopper. The drive component rotates the stirring component forward, causing it to mix the granular materials inside the mixing drum. Then, the water supply component is activated, injecting deionized water into the mixing drum in conjunction with the stirring component. The stirring component continues to rotate forward, rapidly dissolving the granular materials in the deionized water to form a liquid solution. The drive component then reverses the direction of rotation, mixing the liquid solution while simultaneously driving the mixing component to mix the liquid solution from top to bottom within the mixing drum, thus improving mixing efficiency.
[0010] Preferably, the mixing assembly includes a hollow rotating shaft, water outlet pipes, stirring blades, an annular seat, and support arms. The hollow rotating shaft is rotatably mounted at the top of the mixing cylinder, with its bottom sealed. The top of the hollow rotating shaft extends above the mixing cylinder. Multiple sets of water outlet pipes are connected to the outer wall of the hollow rotating shaft inside the mixing cylinder. An annular seat is located directly below the hollow rotating shaft, and two sets of support arms are symmetrically arranged between the annular seat and the hollow rotating shaft. Each set of support arms is equipped with stirring blades. The driving assembly drives the hollow rotating shaft to rotate clockwise, thereby causing the hollow rotating shaft to drive the two sets of support arms to rotate in cooperation with the annular seat. The corresponding multiple sets of stirring blades on the support arms mix and stir the various granular powders inside the mixing cylinder, improving the mixing efficiency.
[0011] Preferably, the mixing assembly includes a one-way bearing, a rotating shaft, a circular groove, a reciprocating screw, a threaded connecting block, a cylinder, a connecting rod, a piston, an inlet pipe, a first one-way valve, an outlet pipe, a second one-way valve, and a bushing. The bottom end of the hollow rotating shaft is connected to the top end of the rotating shaft via a one-way bearing. The bottom end of the rotating shaft is provided with a circular groove, and the reciprocating screw is installed at the top end inside the circular groove. The threaded connecting block is slidably disposed in the circular groove and threadedly connected to the reciprocating screw. The bottom end of the mixing cylinder is provided with a cylinder, and an annular seat is rotatably fitted onto the outer wall of the cylinder. The bottom end of the threaded connecting block is provided with multiple sets of connecting rods. The bottom ends of multiple connecting rods extend into the cylinder and connect to the top of the piston. These connecting rods are slidably connected to the cylinder, and the piston is slidably sealed inside the cylinder. An inlet pipe with a first-order check valve is installed at the inlet end of the cylinder, and an outlet pipe with a second-order check valve is installed at the outlet end. A bushing is installed at the top of the cylinder, with its inner wall contacting the outer wall of the rotating shaft. When the drive assembly drives the hollow shaft to rotate forward, the hollow shaft rotates relative to the rotating shaft with the cooperation of a one-way bearing, thereby causing the hollow shaft to move relative to multiple rotating parts via the support arm and multiple sets of stirring blades. The various granular materials are mixed and stirred. After deionized water is injected through the water supply component, the hollow shaft continues to rotate forward. This allows the deionized water to dissolve the various granular materials, forming a liquid solution. Then, the drive component reverses the rotation of the hollow shaft. At this point, the one-way bearing locks the shaft, causing the hollow shaft to drive the rotating shaft synchronously in reverse. This further causes the rotating shaft to drive the reciprocating screw to rotate in the opposite direction. Because multiple sets of connecting rods are slidably connected to the cylinder, the connecting rods simultaneously limit the threaded connecting block, causing the reciprocating screw and the threaded connecting block to rotate relative to each other, thus causing the threaded connecting block... The screw moves downwards in a reciprocating motion. When the threaded connecting block rises in the circular groove, it drives the piston to rise via the connecting rod, creating a negative pressure inside the cylinder. This forces the high-level liquid solution inside the mixing cylinder to enter the cylinder through the inlet pipe and the first one-way valve. When the threaded connecting block descends, the piston presses the liquid solution inside the cylinder, causing it to pass through the second one-way valve and be transported to the bottom of the mixing cylinder through the outlet pipe. This achieves vertical mixing of the liquid solution while multiple sets of stirring blades perform horizontal stirring of the liquid solution.
[0012] Preferably, the water supply assembly includes a water storage tank, a mounting base, a water pump, a first water supply pipe, a second water supply pipe, and a rotary joint. The water storage tank is located at the top of the base plate, and the water pump is mounted on the top of the base plate with the cooperation of the mounting base. The input end of the water pump is provided with a first water supply pipe, which is connected to the output end of the water storage tank. The output end of the water pump is provided with a second water supply pipe, which is rotatably connected to the top of the hollow rotating shaft through the rotary joint. When the water pump is started, the deionized water inside the water storage tank enters the hollow rotating shaft through the first water supply pipe, the second water supply pipe, and the rotary joint. The deionized water entering the hollow rotating shaft is evenly injected into the mixing cylinder through multiple sets of water outlet pipes.
[0013] Preferably, the drive assembly includes a support frame, a servo motor, a first pulley, a second pulley, and a belt. The servo motor is mounted on the top of the mixing cylinder via the support frame. The output end of the servo motor is equipped with a first pulley, and the second pulley is fixedly fitted onto the outer wall of the hollow rotating shaft. The first pulley and the second pulley are driven by a belt. According to the mixing needs, the operator operates the servo motor to rotate forward or backward, thereby causing the first pulley to drive the second pulley to rotate via the belt, which in turn drives the hollow rotating shaft to rotate, improving convenience.
[0014] Preferably, the drain assembly includes a drain pipe and a drain valve. The output end of the mixing cylinder is provided with a drain pipe, and a drain valve is installed on the drain pipe. After the liquid solution is mixed and stirred, the drain valve is opened, so that the liquid solution is discharged through the drain pipe and allowed to stand for a period of time for defoaming.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: a foam extinguishing agent is prepared by using lauramidopropyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea and deionized water as raw materials. The resulting foam extinguishing agent product has good foaming properties and high foam stability, and can generate a large amount of foam in a short time to block the contact between combustibles and the outside air, thereby improving the fire extinguishing effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the isometric structure of the present invention; Figure 2 yes Figure 1 A partially enlarged structural diagram of section A in the middle; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is an exploded structural diagram of the present invention; Figure 5 This is an enlarged structural diagram of the mixing cylinder and sampling tube, etc. Figure 6This is an enlarged structural diagram of the No. 2 water pipe and water pump, etc. Figure 7 This is an enlarged structural diagram of the servo motor and bushing, etc. Figure 8 This is a schematic diagram of an explosion-proof structure consisting of a belt and a hollow rotating shaft, etc. Figure 9 This is an enlarged structural diagram of pulleys No. 1 and No. 2, etc. Figure 10 It is an enlarged structural diagram of structures such as cylinders and rotating shafts; Figure 11 It is a cross-sectional structural diagram of structures such as rotating shafts and threaded connecting blocks.
[0017] In the attached diagram, the following are labeled: 101, base plate; 102, support leg; 103, mixing cylinder; 104, feed hopper; 105, sampling tube; 106, sampling valve; 201, hollow rotating shaft; 202, water outlet pipe; 203, stirring blade; 204, annular seat; 205, support frame; 301, one-way bearing; 302, rotating shaft; 303, circular groove; 304, reciprocating screw; 305, threaded connecting block; 307, cylinder; 308, connecting rod; 309, movable... 310. Inlet pipe; 311. Check valve No. 1; 312. Outlet pipe; 313. Check valve No. 2; 314. Bushing; 401. Water storage tank; 402. Mounting base; 403. Water pump; 404. Water supply pipe No. 1; 405. Water supply pipe No. 2; 406. Rotary joint; 501. Support frame; 502. Servo motor; 503. Pulley No. 1; 504. Pulley No. 2; 505. Belt; 601. Discharge pipe; 602. Discharge valve. Detailed Implementation
[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
[0019] Example 1 This invention discloses a method for preparing a liquid foam fire extinguishing agent, wherein the fire extinguishing agent is composed of the following raw materials: lauramidopropyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea, and deionized water, comprising the following preparation steps: Step 1: Add lauramide propyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, and urea sequentially into the mixing drum and mix thoroughly to obtain the mixture. Step 2: Add deionized water to the mixing cylinder to dissolve the deionized water in the mixture and obtain the reaction solution; Step 3: The reaction liquid is drained and allowed to stand for a certain period of time to defoam, resulting in a foam extinguishing agent solution; In step one, the extinguishing agent is composed of the following raw materials by mass percentage: 5%-7% lauramidopropyl betaine, 5%-7% organosilicon surfactant, 5%-7% alkyl glycoside, 20%-30% fatty amine polyoxyethylene ether, 2%-4% sodium dodecyl sulfonate, 1%-4% polyacrylamide, 1%-4% xanthan gum, 2%-5% sodium carboxymethyl cellulose, 3%-8% sodium alginate, 1%-6% urea, and the balance being deionized water; In steps one and two, the ambient temperature of the mixing cylinder is 15-45 degrees Celsius. The resting time in step three is 30-120 minutes.
[0020] In this embodiment, a foam extinguishing agent is prepared using lauramidopropyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea, and deionized water as raw materials. The resulting foam extinguishing agent product has good foaming properties and high foam stability, and can generate a large amount of foam in a short time to block the contact between combustibles and the outside air, thereby improving the fire extinguishing effect.
[0021] Example 2 like Figures 1 to 11 As shown, a foam fire extinguishing agent liquid formulation preparation device of the present invention includes a base plate 101, a support leg 102, a mixing cylinder 103, a feed hopper 104, a sampling tube 105, and a sampling valve 106. The mixing cylinder 103 is mounted on the top of the base plate 101 via the support leg 102. The feed hopper 104 is provided at the input end of the mixing cylinder 103. The sampling tube 105 is provided on the outer wall of the mixing cylinder 103, and the sampling valve 106 is installed on the sampling tube 105. The device also includes a drive assembly, a stirring assembly, a mixing assembly, and a water supply assembly. The mixing assembly is provided at the bottom of the mixing cylinder 103. The stirring assembly is installed inside the mixing cylinder 103. The drive assembly is installed at the top of the mixing cylinder 103. The drive assembly is used for the forward and reverse rotation of the stirring assembly. The forward rotation of the stirring assembly is used for stirring the powder, and the reverse rotation of the stirring assembly is used to start the mixing assembly to mix the liquid material. The water supply assembly is used for water injection into the mixing cylinder 103. The mixing assembly includes a hollow rotating shaft 201, a water outlet pipe 202, a stirring blade 203, an annular seat 204, and a support arm 205. The hollow rotating shaft 201 is rotatably mounted at the top of the mixing cylinder 103. The bottom of the hollow rotating shaft 201 is sealed, and the top of the hollow rotating shaft 201 extends above the mixing cylinder 103. Multiple sets of water outlet pipes 202 are connected to the outer wall of the hollow rotating shaft 201 inside the mixing cylinder 103. A set of annular seats 204 is arranged directly below the hollow rotating shaft 201. Two sets of support arms 205 are symmetrically arranged between the annular seats 204 and the hollow rotating shaft 201. A stirring blade 203 is installed on each set of support arms 205. The mixing assembly includes a one-way bearing 301, a rotating shaft 302, a circular groove 303, a reciprocating screw 304, a threaded connecting block 305, a cylinder 307, a connecting rod 308, a piston 309, an inlet pipe 310, a first one-way valve 311, an outlet pipe 312, a second one-way valve 313, and a bushing 314. The bottom end of the hollow rotating shaft 201 is connected to the top end of the rotating shaft 302 via the one-way bearing 301. The bottom end of the rotating shaft 302 is provided with a circular groove 303. The reciprocating screw 304 is installed at the top end of the circular groove 303. The threaded connecting block 305 slides in the circular groove 303 and is threadedly connected to the reciprocating screw 304. The bottom end of the mixing cylinder 103 is provided with a cylinder 307. 7. The annular seat 204 is rotatably mounted on the outer wall of the cylinder 307. The bottom end of the threaded connecting block 305 is provided with multiple sets of connecting rods 308. The bottom ends of the multiple sets of connecting rods 308 extend into the inside of the cylinder 307 and are connected to the top end of the piston 309. The multiple sets of connecting rods 308 are slidably connected to the cylinder 307. The piston 309 is slidably and sealed inside the cylinder 307. The input end of the cylinder 307 is provided with an inlet pipe 310. A first check valve 311 is installed on the inlet pipe 310. The output end of the cylinder 307 is provided with an outlet pipe 312. A second check valve 313 is installed on the outlet pipe 312. The top end of the cylinder 307 is provided with a bushing 314. The inner side wall of the bushing 314 contacts the outer side wall of the rotating shaft 302. The water supply assembly includes a water storage tank 401, a mounting base 402, a water pump 403, a first water supply pipe 404, a second water supply pipe 405, and a rotary joint 406. The water storage tank 401 is provided at the top of the base plate 101. The water pump 403 is installed at the top of the base plate 101 with the cooperation of the mounting base 402. The input end of the water pump 403 is provided with the first water supply pipe 404, which is connected to the output end of the water storage tank 401. The output end of the water pump 403 is provided with the second water supply pipe 405, which is rotatably connected to the top of the hollow rotating shaft 201 through the rotary joint 406. The drive assembly includes a support frame 501, a servo motor 502, a first pulley 503, a second pulley 504, and a belt 505. The servo motor 502 is mounted on the top of the mixing cylinder 103 via the support frame 501. The output end of the servo motor 502 is provided with a first pulley 503. The second pulley 504 is fixedly fitted onto the outer wall of the hollow rotating shaft 201. The first pulley 503 and the second pulley 504 are driven by the belt 505. The drainage assembly includes a discharge pipe 601 and a discharge valve 602. The discharge pipe 601 is provided at the output end of the mixing cylinder 103, and the discharge valve 602 is installed on the discharge pipe 601.
[0022] In this embodiment, during use, various granular materials are injected into the mixing cylinder 103 through the feed hopper 104. The servo motor 502 is started to drive the hollow rotating shaft 201 to rotate forward. The hollow rotating shaft 201 rotates relative to the rotating shaft 302 with the cooperation of the one-way bearing 301, so that the hollow rotating shaft 201 mixes and stirs the various granular materials through the support arm 205 and multiple sets of stirring blades 203. The water pump 403 is started, so that the deionized water in the water storage tank 401 enters the hollow rotating shaft 103 through the first water supply pipe 404, the second water supply pipe 405 and the rotary joint 406. Inside the hollow rotating shaft 201, deionized water is evenly injected into the mixing cylinder 103 through multiple sets of water outlet pipes 202, continuing to make the hollow rotating shaft 201 rotate forward. This allows the deionized water to dissolve various particulate materials into a liquid solution. Then, the servo motor 502 reverses the rotation of the hollow rotating shaft 201. At this time, the one-way bearing 301 locks the rotating shaft 302, causing the hollow rotating shaft 201 to drive the rotating shaft 302 to rotate synchronously in reverse. This further causes the rotating shaft 302 to drive the reciprocating screw 304 to rotate in the opposite direction. Multiple sets of connecting rods 308 are slidably connected to the cylinder 307. The connecting rods 308 simultaneously limit the threaded connecting block 305, thereby causing the reciprocating screw 304 and the threaded connecting block 305 to rotate relative to each other. This causes the threaded connecting block 305 to reciprocate downwards along the reciprocating screw 304. When the threaded connecting block 305 rises in the circular groove 303, it drives the piston 309 to rise via the connecting rods 308. A negative pressure is formed inside the cylinder 307, causing the high-level liquid solution inside the mixing cylinder 103 to pass through the inlet pipe 310 and through the first... One-way valve 311 enters the inside of cylinder 307. When threaded connecting block 305 descends, piston 309 presses the liquid solution inside cylinder 307, causing the liquid solution inside cylinder 307 to pass through one-way valve 313 and be transported to the bottom of mixing cylinder 103 through outlet pipe 312. This achieves vertical mixing of the liquid solution while multiple sets of stirring blades 203 stir the liquid solution horizontally. After the liquid solution is mixed, discharge valve 602 is opened, allowing the liquid solution to be discharged through discharge pipe 601. The solution is then allowed to stand for a period of time for defoaming.
[0023] The one-way bearing 301, reciprocating screw 304, first one-way valve 311, second one-way valve 313, water pump 403, rotary joint 406 and servo motor 502 of the foam fire extinguishing agent liquid formulation preparation method and device of the present invention are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0024] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A method for preparing a liquid foam fire extinguishing agent, wherein the fire extinguishing agent is composed of the following raw materials: lauramidopropyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, urea, and deionized water, characterized in that, The following preparation steps are included: Step 1: Add lauramide propyl betaine, organosilicon surfactant, alkyl glycoside, fatty amine polyoxyethylene ether, sodium dodecyl sulfonate, polyacrylamide, xanthan gum, sodium carboxymethyl cellulose, sodium alginate, and urea sequentially into the mixing drum and mix thoroughly to obtain the mixture. Step 2: Add deionized water to the mixing cylinder to dissolve the deionized water in the mixture and obtain the reaction solution; Step 3: The reaction liquid is drained and allowed to stand for a certain period of time to defoam, resulting in a foam extinguishing agent.
2. The method for preparing a foam extinguishing agent liquid formulation as described in claim 1, characterized in that, In step one, the extinguishing agent is composed of the following raw materials by mass percentage: 5%-7% lauramidopropyl betaine, 5%-7% organosilicon surfactant, 5%-7% alkyl glycoside, 20%-30% fatty amine polyoxyethylene ether, 2%-4% sodium dodecyl sulfonate, 1%-4% polyacrylamide, 1%-4% xanthan gum, 2%-5% sodium carboxymethyl cellulose, 3%-8% sodium alginate, 1%-6% urea, and the balance being deionized water.
3. The method for preparing a foam fire extinguishing agent liquid formulation as described in claim 2, characterized in that, In steps one and two, the ambient temperature of the mixing cylinder is 15-45 degrees Celsius.
4. The method for preparing a foam extinguishing agent liquid formulation as described in claim 3, characterized in that, The resting time in step three is 30-120 minutes.
5. A foam extinguishing agent liquid formulation mixing device, characterized in that, The system includes a base plate (101), support legs (102), a mixing cylinder (103), a feed hopper (104), a sampling tube (105), and a sampling valve (106). The mixing cylinder (103) is mounted on the top of the base plate (101) via the support legs (102). The feed hopper (104) is provided at the input end of the mixing cylinder (103). The sampling tube (105) is provided on the outer wall of the mixing cylinder (103), and the sampling valve (106) is installed on the sampling tube (105). The system also includes a drive mechanism. The mixing cylinder (103) is equipped with a mixing component, a stirring component, and a water supply component. The mixing cylinder (103) is equipped with a stirring component at its bottom and a driving component at its top. The driving component is used to rotate the stirring component in both forward and reverse directions. The stirring component rotates in the forward direction to stir the powder and rotates in reverse to start the mixing component to mix the liquid material. The water supply component is used to inject water into the mixing cylinder (103).
6. The foam extinguishing agent liquid formulation mixing device as described in claim 5, characterized in that, The mixing assembly includes a hollow rotating shaft (201), a water outlet pipe (202), a stirring blade (203), an annular seat (204), and a support arm (205). The hollow rotating shaft (201) is rotatably installed at the top of the mixing cylinder (103). The bottom end of the hollow rotating shaft (201) is sealed. The top end of the hollow rotating shaft (201) extends to the top of the mixing cylinder (103). Multiple sets of water outlet pipes (202) are connected to the outer wall of the hollow rotating shaft (201) inside the mixing cylinder (103). A set of annular seats (204) is provided directly below the hollow rotating shaft (201). Two sets of support arms (205) are symmetrically arranged between the annular seats (204) and the hollow rotating shaft (201). A stirring blade (203) is installed on each set of support arms (205).
7. The foam extinguishing agent liquid formulation mixing device as described in claim 6, characterized in that, The mixing assembly includes a one-way bearing (301), a rotating shaft (302), a circular groove (303), a reciprocating screw (304), a threaded connecting block (305), a cylinder (307), a connecting rod (308), a piston (309), an inlet pipe (310), a first one-way valve (311), an outlet pipe (312), a second one-way valve (313), and a bushing (314). The bottom end of the hollow rotating shaft (201) is connected to the top end of the rotating shaft (302) through the one-way bearing (301). The bottom end of the rotating shaft (302) is provided with a circular groove (303). The reciprocating screw (304) is installed at the top end of the circular groove (303). The threaded connecting block (305) slides in the circular groove (303) and is threadedly connected to the reciprocating screw (304). The bottom end of the mixing cylinder (103) is provided with a cylinder (307), a connecting rod (308), a piston (309), an inlet pipe (310), a first one-way valve (311), an outlet pipe (312), a second one-way valve (313), and a bushing (314). 07), the annular seat (204) is rotatably mounted on the outer wall of the cylinder (307). The bottom end of the threaded connecting block (305) is provided with multiple sets of connecting rods (308). The bottom ends of the multiple sets of connecting rods (308) extend into the cylinder (307) and are connected to the top end of the piston (309). The multiple sets of connecting rods (308) are slidably connected to the cylinder (307). The piston (309) is slidably sealed inside the cylinder (307). The cylinder (307) is provided with an inlet pipe (310) at the input end. A first check valve (311) is installed on the inlet pipe (310). The cylinder (307) is provided with an outlet pipe (312) at the output end. A second check valve (313) is installed on the outlet pipe (312). The top end of the cylinder (307) is provided with a bushing (314). The inner side wall of the bushing (314) is in contact with the outer side wall of the rotating shaft (302).
8. The foam extinguishing agent liquid formulation mixing device as described in claim 7, characterized in that, The water supply assembly includes a water storage tank (401), a mounting base (402), a water pump (403), a first water supply pipe (404), a second water supply pipe (405), and a rotary joint (406). The water storage tank (401) is provided at the top of the base plate (101). The water pump (403) is installed at the top of the base plate (101) with the cooperation of the mounting base (402). The input end of the water pump (403) is provided with a first water supply pipe (404). The input end of the first water supply pipe (404) is connected to the output end of the water storage tank (401). The output end of the water pump (403) is provided with a second water supply pipe (405). The output end of the second water supply pipe (405) is rotatably connected to the top of the hollow rotating shaft (201) through the rotary joint (406).
9. The foam extinguishing agent liquid formulation mixing device as described in claim 5, characterized in that, The drive assembly includes a support frame (501), a servo motor (502), a first pulley (503), a second pulley (504), and a belt (505). The servo motor (502) is mounted on the top of the mixing cylinder (103) via the support frame (501). The output end of the servo motor (502) is provided with a first pulley (503). The second pulley (504) is fixedly fitted on the outer wall of the hollow rotating shaft (201). The first pulley (503) and the second pulley (504) are driven by the belt (505).
10. The foam extinguishing agent liquid formulation mixing device as described in claim 5, characterized in that, The discharge assembly includes a discharge pipe (601) and a discharge valve (602). The discharge pipe (601) is provided at the output end of the mixing cylinder (103), and the discharge valve (602) is installed on the discharge pipe (601).