Non-intumescent two-component steel construction fireproof coating spraying apparatus

By using a diaphragm pump and servo motor-driven feeding assembly and a three-stage dynamic mixing structure, the problem of uneven mixing ratio in traditional equipment is solved, thereby improving the fire resistance and spraying efficiency of the coating.

CN224486352UActive Publication Date: 2026-07-14SICHUAN FIRE RES INST OF MEM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN FIRE RES INST OF MEM
Filing Date
2025-07-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional equipment cannot accurately control the mixing ratio of non-intumescent two-component fire-retardant coatings for steel structures, resulting in insufficient curing reaction and affecting the fire-retardant performance of the coating.

Method used

The feeding assembly, driven by a diaphragm pump and a servo motor, is combined with a three-stage dynamic mixing structure, including spiral stirring blades and a turbine mixing core. The delivery ratio is monitored and adjusted in real time by a pressure sensor to ensure uniform mixing.

Benefits of technology

It achieves precise mixing of the two components, improves the fire resistance of the coating, ensures the uniformity and flowability of the coating, and improves the accuracy and efficiency of spraying.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224486352U_ABST
    Figure CN224486352U_ABST
Patent Text Reader

Abstract

The utility model relates to fire retardant paint spraying technical field, concretely is non -inflating type two -component steel structure fire -retardant paint spraying equipment, including control cabinet, the inside of control cabinet is provided with the feeding assembly, the rear side of control cabinet is placed with the liquid storage bucket, the left side of control cabinet is provided with the support frame, the inside of support frame is provided with dynamic mixing subassembly, the outside of dynamic mixing subassembly is connected with third connecting pipe. The utility model discloses through the setting of feeding assembly, diaphragm pump and first servo motor are connected drive respectively, control the delivery proportion of two components, and through setting pressure sensor on the inlet pipe and discharge pipe, real -time monitoring delivery pressure and feedback to control system, accurate control delivery proportion, through the setting of dynamic mixing subassembly, through three -level mixing structure, two components are primarily mixed in first -stage premixing cavity, the second -stage dynamic mixing cavity adopts turbine type mixing core, and the inner wall of three -level homogenizing cavity cavity is equipped with guide vane convex rib and guides, ensures that the paint fluidity is stable.
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Description

Technical Field

[0001] This utility model relates to the field of fire-retardant coating spraying technology, specifically to a non-intumescent two-component steel structure fire-retardant coating spraying equipment. Background Technology

[0002] Currently, steel structure buildings are widely used due to their advantages such as high strength and short construction period, and fire-retardant coatings for steel structures are key materials to ensure their fire resistance. Non-intumescent two-component fire-retardant coatings typically consist of component A (base material, filler, flame retardant, etc.) and component B (curing agent), which need to be mixed in the correct proportions before spraying.

[0003] The existing spraying equipment mainly has the following problems:

[0004] Uneven mixing of two components: Traditional equipment often uses static mixers or simple stirring structures, which cannot accurately control the mixing ratio of the two components, easily leading to insufficient curing reaction and affecting the fireproof performance of the coating. To address this issue, we have proposed a non-intumescent two-component steel structure fireproof coating spraying equipment. Utility Model Content

[0005] The purpose of this invention is to provide a non-expansive two-component fire-retardant coating spraying device for steel structures, in order to solve the problem mentioned in the background art that traditional equipment mostly uses static mixers or simple stirring structures, which cannot accurately control the mixing ratio of the two components, easily leading to insufficient curing reaction and affecting the fire-retardant performance of the coating.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-expansion two-component steel structure fireproof coating spraying equipment, including a control cabinet, an infeed component inside the control cabinet, a liquid storage tank placed at the rear of the control cabinet, a support frame on the left side of the control cabinet, a dynamic mixing component inside the support frame, and a third connecting pipe connected to the outside of the dynamic mixing component.

[0007] The feeding assembly includes a diaphragm pump, a first connecting pipe, an inlet pipe, a gear flow meter, an outlet pipe, a first servo motor, and a second connecting pipe. The diaphragm pump is located on the outside of the control cabinet, and the first connecting pipe is located on the outside of the diaphragm pump. The gear flow meter and the first servo motor are located on the bottom two sides of the control cabinet, respectively. The inlet pipe and the outlet pipe are located on the upper side of the gear flow meter, respectively. The second connecting pipe is located on the outside of the control cabinet.

[0008] Preferably, the dynamic mixing component includes a mixing chamber, a feed inlet, a second servo motor, a mixing shaft, spiral mixing blades, a turbine mixing core, and a guide tube. The mixing chamber is fixedly installed inside the support frame. The feed inlet is fixedly installed at the upper end of the mixing chamber. The second servo motor is fixedly installed at the top of the mixing chamber. The output end of the second servo motor is fixedly connected to the mixing shaft. Spiral mixing blades are fixedly connected to the outer side of the mixing shaft. A turbine mixing core is fixedly connected to the end of the mixing shaft. A guide tube is fixedly connected to the bottom of the mixing chamber.

[0009] Preferably, the gear flow meter is fixedly installed in the lower right corner of the control cabinet, the first servo motor is fixedly installed in the lower left corner of the control cabinet, the output end of the first servo motor is connected to the inside of the gear flow meter, the two ends of the inlet pipe are respectively connected to the first connecting pipe and the gear flow meter, the other end of the first connecting pipe is fixedly connected to a diaphragm pump, the outside of the diaphragm pump is connected to the inside of the liquid storage tank through a water pipe, and the two ends of the outlet pipe are respectively connected to the gear flow meter and the second connecting pipe.

[0010] Preferably, a spraying assembly is provided on the outer side of the third connecting pipe. The spraying assembly includes a base, a third servo motor, a tray, a fourth servo motor, a first movable rod, a second movable rod, a nozzle, and a fifth servo motor. The end of the third connecting pipe is connected to the base. The third servo motor is fixedly installed inside the base. The output end of the third servo motor is fixedly connected to the tray. The surface of the tray is equipped with the fourth servo motor. The output end of the fourth servo motor is fixedly connected to the first movable rod. The first movable rod is rotatably connected to the second movable rod. A nozzle is installed on the outer side of the first movable rod. The output end of the nozzle is connected to the second movable rod. The end of the second movable rod is rotatably connected to the nozzle. The fifth servo motor is installed on the outer side of the second movable rod. The output end of the fifth servo motor is connected to the nozzle. The third connecting pipe is in communication with the nozzle.

[0011] Preferably, the control cabinet is equipped with a control component, which includes a circuit cabinet, a servo server, a control panel, and a pressure sensor. The circuit cabinet is fixedly installed in the upper left corner of the control cabinet, the servo server is fixedly installed in the upper right corner of the control cabinet, the control panel is fixedly installed on the surface of the control cabinet, and pressure sensors are installed on the outer sides of both the inlet pipe and the outlet pipe.

[0012] Preferably, a heating plate is fixedly installed on the inner wall of the mixing chamber, a handle is installed on the back of the support frame, and a screen is snapped onto the surface of the feed inlet.

[0013] Preferably, a laser rangefinder is fixedly installed on the outside of the nozzle, and a three-way valve is connected to the rear end of the third connecting pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses a feeding assembly to drive a diaphragm pump and a first servo motor to control the conveying ratio of the two components. Pressure sensors are installed on the inlet and outlet pipes to monitor the conveying pressure in real time and feed it back to the control system, thereby accurately controlling the conveying ratio.

[0016] 2. This utility model, through the setting of dynamic mixing components and a three-stage mixing structure, has a first-stage premixing chamber with built-in spiral stirring blades to initially mix the two components, a second-stage dynamic mixing chamber with a turbine mixing core, and a third-stage homogenization chamber with guide ridges on the inner wall to ensure stable fluidity of the coating. Attached image description:

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the feeding component and the control component of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the dynamic mixing component of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the spraying component of this utility model.

[0022] In the diagram: 1. Control cabinet; 2. Feed assembly; 201. Diaphragm pump; 202. First connecting pipe; 203. Inlet pipe; 204. Gear flow meter; 205. Discharge pipe; 206. First servo motor; 207. Second connecting pipe; 3. Storage tank; 4. Control assembly; 401. Circuit cabinet; 402. Servo server; 403. Control panel; 404. Pressure sensor; 5. Support frame; 6. Dynamic mixing assembly; 601. Mixing chamber; 602. Feed inlet; 603. Second servo motor; 604, stirring shaft; 605, spiral stirring blade; 606, turbine mixing core; 607, guide tube; 608, three-way valve; 7, screen; 8, third connecting pipe; 9, spraying assembly; 901, base; 902, third servo motor; 903, tray; 904, fourth servo motor; 905, first movable rod; 906, second movable rod; 907, nozzle; 908, fifth servo motor; 909, laser rangefinder sensor; 10, heating plate. Detailed implementation method:

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides an embodiment of a non-expansion two-component steel structure fireproof coating spraying equipment, including a control cabinet 1. The control cabinet 1 is equipped with a feeding component 2 inside. A liquid storage tank 3 is placed on the rear side of the control cabinet 1. A support frame 5 is provided on the left side of the control cabinet 1. A dynamic mixing component 6 is provided inside the support frame 5. A third connecting pipe 8 is connected to the outside of the dynamic mixing component 6. The feeding component 2 includes a diaphragm pump 201, a first connecting pipe 202, an inlet pipe 203, a gear flow meter 204, an outlet pipe 205, a first servo motor 206, and a second connecting pipe 207. The diaphragm pump 201 is provided on the outside of the control cabinet 1. The first connecting pipe 202 is provided on the outside of the diaphragm pump 201. The gear flow meter 204 and the first servo motor 206 are respectively provided on the bottom two sides of the control cabinet 1. The inlet pipe 203 and the outlet pipe 205 are respectively provided on the upper side of the gear flow meter 204. The second connecting pipe 207 is provided on the outside of the control cabinet 1.

[0025] This device, through the setting of the feeding component 2 and the support frame 5, solves the problem that traditional equipment often uses static mixers or simple stirring structures, which cannot accurately control the mixing ratio of the two components, easily leading to insufficient curing reaction and affecting the fireproof performance of the coating.

[0026] Furthermore, the dynamic mixing component 6 includes a mixing chamber 601, a feed inlet 602, a second servo motor 603, a mixing shaft 604, spiral mixing blades 605, a turbine mixing core 606, and a guide tube 607. The mixing chamber 601 is fixedly installed inside the support frame 5. The mixing chamber 601 is divided into three compartments. The feed inlet 602 is fixedly installed at the upper end of the mixing chamber 601. The second servo motor 603 is fixedly installed at the top of the mixing chamber 601. The output end of the second servo motor 603 is fixedly connected to the mixing shaft 604. Spiral mixing blades 605 are fixedly connected to the outer side of the mixing shaft 604, located in the first compartment. The turbine mixing core 606 is fixedly connected to the end of the mixing shaft 604, located in the second compartment. The guide tube 607 is fixedly connected to the bottom of the mixing chamber 601, forming the third compartment. The inner wall of the guide tube 607 is provided with guiding ridges, and the front end of the guide tube 607 is connected to the third connecting pipe 8. Figure 3 As shown, this structure is used to start the second servo motor 603 to drive the stirring shaft 604 to rotate, so that the spiral stirring blades 605 and the turbine mixing core 606 rotate, and stir and mix the material poured in at the feed port 602. Under the stirring of the spiral stirring blades 605 and the turbine mixing core 606, the material is fully mixed, and the mixed material enters the third connecting pipe 8 through the guide pipe 607.

[0027] Furthermore, the gear flow meter 204 is fixedly installed in the lower right corner of the control cabinet 1, and the first servo motor 206 is fixedly installed in the lower left corner of the control cabinet 1. The output end of the first servo motor 206 is connected to the inside of the gear flow meter 204. The two ends of the inlet pipe 203 are respectively connected to the first connecting pipe 202 and the gear flow meter 204. The other end of the first connecting pipe 202 is fixedly connected to a diaphragm pump 201. The outside of the diaphragm pump 201 is connected to the inside of the storage tank 3 through a water pipe. The two ends of the outlet pipe 205 are respectively connected to the gear flow meter 204 and the second connecting pipe 207. Figure 2 As shown, this structure is used to draw the material inside the storage tank 3 into the gear flow meter 204 through the first connecting pipe 202 and the inlet pipe 203 by starting the diaphragm pump 201 and the first servo motor 206. Under the action of the first servo motor 206, the material passes through the gear flow meter 204, is metered according to regulations, and is introduced into the third connecting pipe 8 from the discharge pipe 205 and the second connecting pipe 207.

[0028] Furthermore, a spraying assembly 9 is provided on the outer side of the third connecting pipe 8. The spraying assembly 9 includes a base 901, a third servo motor 902, a tray 903, a fourth servo motor 904, a first movable rod 905, a second movable rod 906, a nozzle 907, and a fifth servo motor 908. The end of the third connecting pipe 8 is connected to the base 901. The third servo motor 902 is fixedly installed inside the base 901. The output end of the third servo motor 902 is fixedly connected to the tray 903. The surface of the tray 903 is equipped with the fourth servo motor 904. The output end of the fourth servo motor 904 is fixedly connected to... There is a first movable rod 905, and a second movable rod 906 is rotatably connected inside the first movable rod 905. A nozzle 907 is installed on the outside of the first movable rod 905, and the output end of the nozzle 907 is connected to the second movable rod 906. The end of the second movable rod 906 is rotatably connected to the nozzle 907. An adjusting ring is installed on the outside of the nozzle 907. The nozzle at the nozzle 907 is connected by a thread for easy replacement. A fifth servo motor 908 is installed on the outside of the second movable rod 906, and the output end of the fifth servo motor 908 is connected to the nozzle 907. A third connecting pipe 8 is connected to the nozzle 907. Figure 4 As shown, this structure is used to rotate the fourth servo motor 904 at the tray 903 by starting the third servo motor 902, adjust the angle of the first movable rod 905, then start the fourth servo motor 904 and the nozzle 907 to adjust the angle of the first movable rod 905 and the second movable rod 906. After adjustment, start the fifth servo motor 908 to fine-tune the angle of the nozzle 907, so as to facilitate spraying at any angle.

[0029] Furthermore, the control cabinet 1 is internally equipped with a control component 4, which includes a circuit cabinet 401, a servo server 402, a control panel 403, and a pressure sensor 404. The circuit cabinet 401 is fixedly installed in the upper left corner of the control cabinet 1, the servo server 402 is fixedly installed in the upper right corner, and the control panel 403 is fixedly installed on the surface of the control cabinet 1. The control panel 403 includes control buttons and a touch screen. Pressure sensors 404 are installed on the outer sides of both the inlet pipe 203 and the outlet pipe 205. Figure 2 As shown, this structure is used to collect and process data information through the servo server 402, and adjust the pump speed, mixer speed and spraying pressure in real time according to the sensor data. The touch screen at the control panel 403 displays the spraying parameters, component ratio, pressure and flow rate, and displays real-time operating conditions and fault alarm information, which facilitates rational control.

[0030] Furthermore, a heating plate 10 is fixedly installed on the inner wall of the mixing chamber 601, a handle is installed on the back of the support frame 5, and a screen 7 is snapped onto the surface of the feed inlet 602 to prevent internal blockage caused by excessively rapid pouring. Figure 3As shown, this structure is used to facilitate the movement of the support frame 5 by pushing it through the handle, adjusting its position, activating the heating plate 10, and controlling the temperature at 25-35℃ to ensure stable coating fluidity.

[0031] Furthermore, a laser rangefinder 909 is fixedly installed on the outside of the nozzle 907, and a three-way valve 608 is connected to the rear end of the third connecting pipe 8. The three-way valve 608 is designed to switch to the cleaning fluid storage tank after construction, injecting cleaning fluid such as water or thinner into the mixing chamber and spray gun pipeline, and then using the spraying assembly 9 to remove residual paint. Figure 4 As shown, this structure is used to monitor the distance between the nozzle and the steel structure surface in real time with an accuracy of ±2mm via a laser rangefinder 909, and the linkage control system automatically adjusts the spraying pressure range from 0.5 to 2MPa.

[0032] Working principle: When using, such as Figure 2 As shown, the material is first poured in through the inlet 602. The second servo motor 603 is then started to rotate the stirring shaft 604, causing the spiral stirring blades 605 and the turbine mixing core 606 to rotate, thus mixing the material poured in through the inlet 602. The mixture is thoroughly mixed by the spiral stirring blades 605 and the turbine mixing core 606. The mixed material then enters the three-way valve 608 through the guide pipe 607. Simultaneously, as... Figure 1 and Figure 2 As shown, the diaphragm pump 201 and the first servo motor 206 are started, drawing the material inside the storage tank 3 into the gear flow meter 204 through the first connecting pipe 202 and the inlet pipe 203. Under the action of the first servo motor 206, the material passes through the gear flow meter 204 and is introduced into the third connecting pipe 8 from the outlet pipe 205 and the second connecting pipe 207. The mixture is then mixed according to the prescribed dosage. The servo server 402 collects and processes the data, adjusting the pump speed, mixer speed, and spraying pressure in real time based on sensor data. The touchscreen on the control panel 403 displays the spraying parameters, component ratio, pressure, and flow rate, as well as real-time operating conditions and fault alarm information, enabling rational control. Figure 4 As shown, the third servo motor 902 is started, which drives the fourth servo motor 904 at the tray 903 to rotate, adjusts the angle of the first movable rod 905, and then starts the fourth servo motor 904 and the nozzle 907 to adjust the angles of the first movable rod 905 and the second movable rod 906. After adjustment, the fifth servo motor 908 is started to fine-tune the angle of the nozzle 907. The paint in the third connecting pipe 8 is sprayed out from the nozzle 907 to spray the steel structure surface. The above is the complete working principle of this utility model.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A non-intumescent two-component steel structure fireproof coating spraying equipment, including a control cabinet (1), characterized in that: The control cabinet (1) is equipped with a feeding component (2), a liquid storage tank (3) is placed on the rear side of the control cabinet (1), a support frame (5) is provided on the left side of the control cabinet (1), a dynamic mixing component (6) is provided inside the support frame (5), and a third connecting pipe (8) is connected to the outside of the dynamic mixing component (6). The feeding assembly (2) includes a diaphragm pump (201), a first connecting pipe (202), an inlet pipe (203), a gear flow meter (204), an outlet pipe (205), a first servo motor (206), and a second connecting pipe (207). The diaphragm pump (201) is located on the outside of the control cabinet (1). The first connecting pipe (202) is located on the outside of the diaphragm pump (201). The gear flow meter (204) and the first servo motor (206) are located on the bottom two sides of the control cabinet (1). The inlet pipe (203) and the outlet pipe (205) are located on the upper side of the gear flow meter (204). The second connecting pipe (207) is located on the outside of the control cabinet (1).

2. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 1, characterized in that: The dynamic mixing component (6) includes a mixing chamber (601), a feed inlet (602), a second servo motor (603), a mixing shaft (604), a spiral mixing blade (605), a turbine mixing core (606), and a guide tube (607). The mixing chamber (601) is fixedly installed inside the support frame (5). The feed inlet (602) is fixedly installed at the upper end of the mixing chamber (601). The second servo motor (603) is fixedly installed at the top of the mixing chamber (601). The output end of the second servo motor (603) is fixedly connected to the mixing shaft (604). The spiral mixing blade (605) is fixedly connected to the outer side of the mixing shaft (604). The turbine mixing core (606) is fixedly connected to the end of the mixing shaft (604). The guide tube (607) is fixedly connected to the bottom of the mixing chamber (601).

3. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 1, characterized in that: The gear flow meter (204) is fixedly installed in the lower right corner of the control cabinet (1), and the first servo motor (206) is fixedly installed in the lower left corner of the control cabinet (1). The output end of the first servo motor (206) is connected to the inside of the gear flow meter (204). The two ends of the inlet pipe (203) are respectively connected to the first connecting pipe (202) and the gear flow meter (204). The other end of the first connecting pipe (202) is fixedly connected to the diaphragm pump (201). The outside of the diaphragm pump (201) is connected to the inside of the liquid storage tank (3) through a water pipe. The two ends of the outlet pipe (205) are respectively connected to the gear flow meter (204) and the second connecting pipe (207).

4. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 1, characterized in that: A spraying assembly (9) is provided on the outside of the third connecting pipe (8). The spraying assembly (9) includes a base (901), a third servo motor (902), a tray (903), a fourth servo motor (904), a first movable rod (905), a second movable rod (906), a nozzle (907), and a fifth servo motor (908). The end of the third connecting pipe (8) is connected to the base (901). The third servo motor (902) is fixedly installed inside the base (901). The output end of the third servo motor (902) is fixedly connected to the tray (903). The fourth servo motor (904) is installed on the surface of the tray (903). The output end of the fourth servo motor (904) is fixedly connected to a first movable rod (905). The inside of the first movable rod (905) is rotatably connected to a second movable rod (906). A nozzle (907) is installed on the outside of the first movable rod (905). The output end of the nozzle (907) is connected to the second movable rod (906). The end of the second movable rod (906) is rotatably connected to the nozzle (907). A fifth servo motor (908) is installed on the outside of the second movable rod (906). The output end of the fifth servo motor (908) is connected to the nozzle (907). The third connecting pipe (8) is connected to the nozzle (907).

5. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 1, characterized in that: The control cabinet (1) is equipped with a control component (4), which includes a circuit cabinet (401), a servo server (402), a control panel (403), and a pressure sensor (404). The circuit cabinet (401) is fixedly installed at the upper left corner of the control cabinet (1), the servo server (402) is fixedly installed at the upper right corner of the control cabinet (1), the control panel (403) is fixedly installed on the surface of the control cabinet (1), and pressure sensors (404) are installed on the outside of the inlet pipe (203) and the outlet pipe (205).

6. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 2, characterized in that: A heating plate (10) is fixedly installed on the inner wall of the mixing chamber (601), a handle is installed on the back of the support frame (5), and a screen (7) is snapped onto the surface of the feed inlet (602).

7. The non-intumescent two-component steel structure fireproof coating spraying equipment according to claim 4, characterized in that: A laser rangefinder (909) is fixedly installed on the outside of the nozzle (907), and a three-way valve (608) is connected to the rear end of the third connecting pipe (8).