A liquid thermal insulation coating material mixer powder vacuum feeding system

Abstract

This utility model discloses a vacuum feeding system for a liquid thermal insulation coating material mixer, comprising a support plate, support rods, a base plate, a vacuum pump, a discharge hopper, a feeding shell, and a switch cover assembly. The four corners of the support plate are fixedly connected to the base plate via the support rods. The vacuum pump is mounted on the upper surface of the base plate, and the discharge hopper is installed at the through-feed inlet on the lower surface of the support plate. The bottom of the discharge hopper is connected to a horizontally arranged discharge pipe. This utility model, by connecting a diversion pipe to the upper end of the discharge pipe, and providing through holes and a suction shell on both sides of the opening of the feeding shell, and connecting the diversion pipe, the suction shell, and the vacuum pump to form a vacuum adsorption path, can adsorb dust that may escape during powder pouring, preventing dust from entering the workshop air, reducing dust pollution, lowering occupational health risks for workers, and reducing the impact of dust on workshop electrical equipment, thus reducing the probability of equipment failure.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid thermal insulation coating material production equipment, and in particular to a vacuum feeding system for a liquid thermal insulation coating material mixer powder. Background Technology

[0002] In the production process of liquid thermal insulation coating materials, the feeding of raw material powder into the mixer relies on the existing vacuum feeder. The raw material powder currently used is the core component of the liquid thermal insulation coating, with a particle size of only 20μm and a bulk density of about 0.4. This physical characteristic leads to the following problems in the actual operation of the existing vacuum feeder: In the initial stage of powder pouring from the silo into the vacuum feeder inlet, due to the limited structure of the inlet of the existing equipment, some powder cannot be completely adsorbed and retained. These uncaptured ultrafine powders are easily dispersed into the air with the trace airflow generated by the operation of the equipment, forming continuous dust pollution.

[0003] Escaped dust reduces the effective utilization rate of raw materials, and long-term accumulation will significantly increase production costs. On the other hand, 20μm ultrafine dust floating in the workshop air can directly penetrate the human respiratory barrier due to its extremely small particle size. Long-term inhalation by workers can easily cause occupational health risks such as pneumoconiosis and bronchitis. At the same time, dust may also adhere to the surface of electrical equipment in the workshop, increasing the probability of equipment short circuits and malfunctions. Therefore, a liquid thermal insulation coating material mixer powder vacuum feeding system is proposed to solve the above problems. Utility Model Content

[0004] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a vacuum feeding system for powder in a liquid thermal insulation coating material mixer, which solves the problems of powder spillage, low raw material utilization, high occupational health risks, and high probability of equipment failure that occur when feeding raw material powder for liquid thermal insulation coating materials.

[0005] (II) Technical Solution This utility model provides a vacuum feeding system for a liquid thermal insulation coating material mixer, comprising a support plate, support rods, a base plate, a vacuum pump, a discharge hopper, a feeding shell, and a switch cover assembly. The four corners of the support plate are fixedly connected to the base plate via the support rods. The vacuum pump is mounted on the upper surface of the base plate. The discharge hopper is installed at the through-feed inlet on the lower surface of the support plate, and its bottom is connected to a horizontally arranged discharge pipe. The switch cover assembly is installed at the opening of the feeding shell. A diversion pipe is connected to the upper end of the discharge pipe. Multiple through holes are equidistantly spaced on both sides of the opening of the feeding shell. Suction shells are installed at both ends of the feeding shell outside the multiple through holes. The two ends of the diversion pipe are connected to the suction shells on both sides via connecting pipes. A control valve is installed on the outer end face of the diversion pipe. The vacuum pump is connected to the diversion pipe via a pipeline to form a vacuum feeding path.

[0006] Furthermore, the manifold has a T-shaped structure, and the control valve is a vacuum regulating valve.

[0007] Furthermore, an electrical distribution box is installed on the outer wall of the vacuum pump, and a controller is also installed on the upper end of the base plate. The controller is electrically connected to the electrical distribution box via wires, and the controller is electrically connected to the vacuum pump and the control valve respectively to achieve control.

[0008] Furthermore, the switch cover assembly includes a cover plate, a mounting bracket, and a gas strut. The cover plate is hinged to the upper opening edge of the feeding housing. The mounting bracket is fixedly installed on the upper end face of the cover plate. Both sides of the mounting bracket are rotatably connected to the side walls of the feeding housing through the rotatable gas strut.

[0009] Furthermore, a handle is fixedly installed on the upper end face of the cover plate, and the surface of the handle is provided with anti-slip texture.

[0010] Furthermore, a screening screen is installed at the through-feed inlet in the middle of the support plate, and the screening screen is made of stainless steel.

[0011] Furthermore, wheels are installed at the bottom of the base plate, and the wheels are omnidirectional wheels with braking function.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: This liquid thermal insulation coating material mixer powder vacuum feeding system, by connecting a diversion pipe to the upper end of the discharge pipe, setting through holes and a suction shell on both sides of the opening of the feeding shell, and connecting the diversion pipe with the suction shell and vacuum pump to form a vacuum adsorption path, can adsorb dust that may be released when the powder is poured, prevent dust from entering the workshop air, reduce dust pollution, reduce occupational health risks to workers, and at the same time reduce the impact of dust on workshop electrical equipment, reducing the probability of equipment failure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a vacuum feeding system for a liquid thermal insulation coating material mixer.

[0014] Figure 2 This is a right view of a powder vacuum feeding system for a mixer of liquid thermal insulation coating material proposed in this utility model.

[0015] Figure 3 This is a perspective view of the installation of the distribution pipe in the powder vacuum feeding system of a liquid thermal insulation coating material mixer according to the present invention.

[0016] Figure 4 This is a partial perspective view of a vacuum feeding system for a liquid thermal insulation coating material mixer according to the present invention. Reference numerals: 1. Handle; 2. Cover plate; 3. Mounting bracket; 4. Gas strut; 5. Through hole; 6. Support plate; 7. Screening screen; 8. Controller; 9. Diverter pipe; 10. Control valve; 11. Connecting pipe; 12. Suction housing; 13. Discharge pipe; 14. Base plate; 15. Wheel; 16. Vacuum pump; 17. Distribution box; 18. Feeding housing; 19. Discharge hopper; 20. Support rod. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example 1 like Figure 1-4 As shown, the present invention proposes a vacuum feeding system for a liquid thermal insulation coating material mixer, comprising a support plate 6, support rods 20, a base plate 14, a vacuum pump 16, a discharge hopper 19, a feeding housing 18, and a switch cover assembly. The four corners of the bottom of the support plate 6 are fixedly connected to the base plate 14 via support rods 20. The vacuum pump 16 is installed on the upper surface of the base plate 14. The discharge hopper 19 is installed at the through-feed inlet on the lower surface of the support plate 6, and the bottom of the discharge hopper 19 is connected to a horizontally arranged discharge pipe 13. The switch cover assembly is installed at the opening of the feeding housing 18. The upper end of the discharge pipe 13 is also connected to the diversion pipe 9. Multiple through holes 5 are equidistantly penetrating both sides of the opening of the feeding housing 18. Suction housings 12 are installed at both ends of the feeding housing 18 and outside the multiple through holes 5. The two ends of the diversion pipe 9 are connected to the suction housings 12 on both sides through connecting pipes 11. A control valve 10 is installed on the outer end face of the diversion pipe 9. The vacuum pump 16 is connected to the diversion pipe 9 through a pipeline to form a vacuum feeding passage.

[0021] In this utility model, When material loading is required, the operator first presets parameters such as the operating power of the vacuum pump 16 and the initial opening of the control valve 10 using the controller 8. Then, the operator holds the handle 1 on the cover plate 2 and pulls it upward to open the cover plate 2. At this time, the gas strut 4 will use its own supporting force to stably support the cover plate 2 at the preset opening angle, preventing the cover plate 2 from falling back on its own. Next, the operator slowly pours the raw material powder of the liquid heat insulation coating material into the opened loading shell 18. During this process, the loading program of the controller 8 is started, and the vacuum pump 16 immediately starts according to the preset parameters, extracting the air in the distribution pipe 9 through the pipeline, so that a stable negative pressure is quickly formed in the distribution pipe 9. Since the diversion pipe 9 is connected to the suction shell 12 via the connecting pipe 11, a negative pressure is also formed inside the suction shell 12. This pressure, through the through holes 5 on both sides of the opening of the feeding shell 18, allows for the real-time adsorption of ultrafine dust that may escape from the edge of the opening when the powder is poured. The adsorbed dust enters the diversion pipe 9 through the connecting pipe 11, and then enters the discharge pipe 13 together. It merges with the qualified powder that falls from the feed inlet through the support plate 6 and is screened by the sieve 7. Finally, through the guiding effect of the discharge hopper 19, the powder is smoothly transported to the feed end of the mixer via a dedicated conveying pipeline, completing one powder feeding operation. If dust emission or unstable negative pressure is detected during the entire feeding process, the opening of the control valve 10 can be adjusted in real time by the controller 8 so that the negative pressure in the diversion pipe 9 can be controlled.

[0022] It should be added that the discharge end of the discharge pipe 13 is connected to the feed end of the subsequent liquid thermal insulation coating material raw material powder mixer through a dedicated conveying pipeline; while the vacuum pump 16 is connected to the inside of the mixer cavity through a dedicated vacuum pipeline. This allows the vacuum pump 16 to provide negative pressure adsorption power for the feeding system while helping to maintain a micro negative pressure environment inside the mixer, reducing dust overflow caused by airflow disturbance when the powder is fed into the mixer.

[0023] In this embodiment, the diverter 9 has a T-shaped structure, and the control valve 10 is a vacuum regulating valve.

[0024] It should be noted that the T-shaped diverter 9 can better connect with the discharge pipe 13 and the connecting pipe 11, ensuring smooth flow; the vacuum regulating valve can adjust the air passage conduction area and control the flow rate of the negative pressure circuit. The vacuum regulating valve has an adjustable valve core. When the valve core is rotated, the air passage gap is changed. The smaller the gap, the greater the air resistance, the slower the air pumping speed of the negative pressure source, the lower the vacuum degree at the suction end, and the weaker the suction force; the larger the gap, the smaller the air resistance, the vacuum degree approaches the upper limit of the negative pressure source, and the stronger the suction force.

[0025] In this embodiment, a distribution box 17 is installed on the outer wall of the vacuum pump 16, and a controller 8 is also installed on the upper end of the base plate 14. The controller 8 is electrically connected to the distribution box 17 through wires, and the controller 8 is electrically connected to the vacuum pump 16 and the control valve 10 respectively to achieve control.

[0026] It should be noted that the distribution box 17 provides power support for the entire system, while the controller 8 can automatically control the start and stop of the vacuum pump 16, its operating power, and the opening degree of the control valve 10.

[0027] Staff can preset relevant parameters through controller 8 to realize the operation of the system, reduce manual operation, improve production efficiency, and ensure the accuracy and stability of system operation.

[0028] In this embodiment, a wheel 15 is installed at the bottom of the base plate 14. The wheel 15 is a universal wheel with braking function.

[0029] It should be noted that the omnidirectional wheels allow staff to flexibly adjust the position of the entire system according to production needs; and the braking function can fix the wheels 15 after the system is adjusted to a suitable position, preventing movement during operation and ensuring operational stability.

[0030] Example 2 like Figure 1 , 2 In addition, based on the first embodiment, this embodiment defines the switch cover assembly, which includes a cover plate 2, a mounting bracket 3, and a gas strut 4. The cover plate 2 is hinged to the upper opening edge of the feeding housing 18, and the mounting bracket 3 is fixedly installed on the upper end face of the cover plate 2. Both sides of the mounting bracket 3 are rotatably connected to the two side walls of the feeding housing 18 through the rotatable gas strut 4.

[0031] It should be noted that the gas strut 4 has a supporting and buffering function. When opening the cover plate 2, the gas strut 4 can provide assistance, making it easier to open the cover plate 2. When closing the cover plate 2, the gas strut 4 can play a buffering role, preventing damage caused by collision between the cover plate 2 and the feeding housing 18.

[0032] In this embodiment, a handle 1 is fixedly installed on the upper end face of the cover plate 2, and the surface of the handle 1 is provided with anti-slip texture.

[0033] It should be noted that the handle 1 is designed to make it easy for staff to open or close the cover 2. The anti-slip texture increases the friction between the hand and the handle 1, preventing slippage during operation and improving the safety and convenience of operation.

[0034] Example 3 like Figure 1As shown, based on the previous embodiment, this embodiment adds a screening screen 7. A screening screen 7 is installed at the through-feed inlet in the middle of the support plate 6. The screening screen 7 is made of stainless steel.

[0035] It should be noted that the screening screen 7 can screen the powder entering the discharge hopper 19, remove impurities and large particles that may exist in the powder, and ensure the quality of the powder raw materials entering the mixer.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum feeding system for a liquid thermal insulation coating material mixer, comprising a support plate (6), a support rod (20), a base plate (14), a vacuum pump (16), a discharge hopper (19), a feeding housing (18), and a switch cover assembly, wherein the four corners of the bottom of the support plate (6) are fixedly connected to the base plate (14) via the support rod (20), the vacuum pump (16) is installed on the upper end face of the base plate (14), the discharge hopper (19) is installed at the through-feed inlet on the lower end face of the support plate (6), the bottom of the discharge hopper (19) is connected to a horizontally arranged discharge pipe (13), and the switch cover assembly is installed at the opening of the feeding housing (18), characterized in that, The upper end of the discharge pipe (13) is also connected to a diversion pipe (9). Multiple through holes (5) are equidistantly penetrating both sides of the opening of the feeding shell (18). Suction shells (12) are installed at both ends of the feeding shell (18) and outside the multiple through holes (5). The two ends of the diversion pipe (9) are connected to the suction shells (12) on both sides through connecting pipes (11). A control valve (10) is installed on the outer end face of the diversion pipe (9). The vacuum pump (16) is connected to the diversion pipe (9) through a pipeline to form a vacuum feeding passage.

2. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 1, characterized in that, The shunt pipe (9) has a T-shaped structure, and the control valve (10) is a vacuum regulating valve.

3. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 1, characterized in that, A distribution box (17) is installed on the outer wall of the vacuum pump (16), and a controller (8) is also installed on the upper end of the base plate (14). The controller (8) is electrically connected to the distribution box (17) through wires, and the controller (8) is electrically connected to the vacuum pump (16) and the control valve (10) respectively to realize control.

4. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 1, characterized in that, The switch cover assembly includes a cover plate (2), a mounting bracket (3), and a gas strut (4). The cover plate (2) is hinged to the upper opening edge of the feeding housing (18). The mounting bracket (3) is fixedly installed on the upper end face of the cover plate (2). Both sides of the mounting bracket (3) are rotatably connected to the two side walls of the feeding housing (18) through the rotatable gas strut (4).

5. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 4, characterized in that, A handle (1) is fixedly installed on the upper end face of the cover plate (2), and the surface of the handle (1) is provided with anti-slip texture.

6. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 1, characterized in that, A screening screen (7) is installed at the through-feed inlet in the middle of the support plate (6), and the screening screen (7) is made of stainless steel.

7. The liquid heat-insulating coating material stirring machine powder vacuum feeding system according to claim 1, characterized in that, The bottom of the base plate (14) is equipped with wheels (15), which are universal wheels with braking function.

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