Automated two-component sealant dispersion and mixing apparatus

Abstract

The application provides an automatic two-component sealant dispersion stirring device, and belongs to the sealant production device field. The automatic two-component sealant dispersion stirring device comprises a negative pressure kettle body and a feeding assembly. The feeding assembly is arranged at the top of the negative pressure kettle body and is suitable for adding powder into the negative pressure kettle body through a powder feeding port. The feeding assembly comprises a closed shell and a filter partition plate. The filter partition plate divides the inner cavity of the closed shell into a material collecting cavity and an exhaust cavity. The airflow carrying the powder enters the material collecting cavity through an airflow feeding port, the powder is separated from the airflow by the filter partition plate and remains in the material collecting cavity, the material in the material collecting cavity can fall into the negative pressure kettle body through a material falling port and the powder feeding port, and the airflow enters the exhaust cavity after passing through the filter partition plate and is finally discharged from an exhaust port, so that automatic feeding is completed and the feeding is more convenient. The feeding assembly is arranged at the top of the negative pressure kettle body, the space at the top of the negative pressure kettle body can be fully utilized, the space around the negative pressure kettle body is less occupied, and installation and arrangement are facilitated.

Description

Technical Field

[0001] This application belongs to the technical field of sealant production equipment, and more specifically, relates to an automated two-component sealant dispersion and mixing equipment. Background Technology

[0002] The production of two-component sealants (two-component polyurethane sealants, two-component polysulfide sealants) typically involves processes such as feeding, dispersion and mixing, drum filling, and capping. Dispersion and mixing are usually accomplished using a dispersion and mixing vessel. Workers need to add liquid raw materials and powders to the vessel, which then mixes and disperses them. While liquid raw materials can now be easily added via pumps and pipelines, powders are still added manually, which is labor-intensive and inconvenient. Although common screw conveyors can be used to add powders to the dispersion and mixing vessel, they have certain requirements regarding layout space and inclination angle, and in particular, they cannot fully utilize the space at the top of the vessel, making them unsuitable in situations with limited surrounding space or compact equipment. Utility Model Content

[0003] In view of this, embodiments of this application provide an automated two-component sealant dispersion and mixing device to solve the technical problem of powder addition in existing dispersion and mixing devices.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] On the one hand, an automated two-component sealant dispersion and mixing device is provided, suitable for producing two-component sealants, comprising:

[0006] The negative pressure vessel body contains an internal stirring unit and a dispersion unit, and a powder inlet is located at the top; and

[0007] A feeding assembly is located at the top of the negative pressure vessel and is adapted to add powder to the negative pressure vessel through the powder inlet.

[0008] The feeding assembly includes:

[0009] A sealed housing with a discharge port at the bottom, the discharge port being connected to the powder inlet; and

[0010] A filter baffle is suitable for filtering powder in an airflow; the filter baffle divides the inner cavity of the sealed shell into a material collection chamber and an exhaust chamber, and the material discharge port is located at the bottom of the material collection chamber;

[0011] The sealed housing is also provided with an airflow inlet communicating with the material collection chamber and an exhaust outlet communicating with the exhaust chamber.

[0012] In some embodiments, a discharge control valve is provided between the discharge port and the powder feed port.

[0013] In some embodiments, the filter baffle includes:

[0014] The partition body has multiple through holes; the partition body is fixed inside the sealed housing, dividing the inner cavity of the sealed housing into the material collection chamber and the exhaust chamber; and

[0015] Multiple filter bags are located inside the collection chamber and are respectively connected to each of the through holes.

[0016] In some embodiments, the feeding assembly further includes a backflushing structure, the backflushing structure comprising:

[0017] A buffer gas tank is located on the outside of the sealed housing;

[0018] Multiple sets of nozzles are located inside the exhaust chamber, and each set of nozzles is connected to the buffer gas tank through a backflush valve; each nozzle in each set is directed one-to-one toward the filter bag.

[0019] In some embodiments, the bottom of the buffer tank is also provided with a drain valve.

[0020] In some embodiments, the automated two-component sealant dispersion and mixing equipment further includes:

[0021] The circulating fan has an air inlet connected to the air outlet via an air inlet pipe, and an air outlet connected to the airflow inlet via a material conveying pipe.

[0022] The powder silo has a first weighing unit at the bottom, which detects the change in the weight of the powder in the silo; the discharge port at the bottom of the powder silo is connected to the conveying pipeline for feeding.

[0023] In some embodiments, there are multiple powder hoppers, and the bottom of each powder hopper is provided with the first weighing and metering unit; the discharge port of each powder hopper is provided with a discharge valve and is respectively connected to the conveying pipeline for feeding.

[0024] In some embodiments, there are multiple powder silos, and the bottom of each powder silo is provided with the first weighing and metering unit; each powder silo has a discharge valve at its discharge port, and the discharge port of each powder silo is connected to a collecting pipe, which is connected to the conveying pipeline for feeding.

[0025] In some embodiments, the automated two-component sealant dispersion and mixing equipment further includes a liquid raw material premixing tank, the outlet of which is connected to the liquid inlet of the negative pressure vessel; a second weighing unit is provided at the bottom of the liquid raw material premixing tank, the second weighing unit being adapted to detect the weight change of the mixed liquid raw material in the liquid raw material premixing tank.

[0026] In some embodiments, the automated two-component sealant dispersion and mixing equipment further includes multiple liquid raw material tanks, the outlet of each liquid raw material tank being connected to the inlet of the liquid raw material premixing tank; a third weighing unit is provided at the bottom of each liquid raw material tank, the third weighing unit being adapted to detect the weight change of the liquid raw material in the liquid raw material tank.

[0027] The advantages of the automated two-component sealant dispersion and mixing equipment provided in this application embodiment are as follows: Compared with the prior art, in the automated two-component sealant dispersion and mixing equipment of this application embodiment, the airflow carrying the powder enters the collection chamber through the airflow inlet. The powder is separated from the airflow by the filter baffle and remains in the collection chamber. The material in the collection chamber can fall into the negative pressure vessel through the discharge port and the powder inlet. The airflow enters the exhaust chamber after passing through the filter baffle and is finally discharged from the exhaust port, completing the automatic feeding, making feeding more convenient and reducing the amount of labor. Moreover, the feeding component is set at the top of the negative pressure vessel, which can make full use of the space at the top of the negative pressure vessel, reduce the occupation of the space around the negative pressure vessel, and facilitate the installation and layout. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the automated two-component sealant dispersion and mixing equipment provided in the embodiments of this application;

[0030] Figure 2 for Figure 1 Enlarged view of the feed assembly section.

[0031] The following are the labeling elements in the figure:

[0032] 1-Negative pressure vessel body; 11-Stirring unit; 12-Dispersion unit; 2-Feeding assembly; 21-Sealed shell; 211-Discharge port; 212-Airflow inlet; 213-Exhaust port; 214-Collection chamber; 215-Exhaust chamber; 22-Filter baffle; 221-Baffle body; 222-Filter bag; 23-Discharge control valve; 3-Backflush structure; 31-Buffer air tank; 32-Backflush valve; 33-Nozzle; 34-Drain valve; 4-Circulating fan; 41-Inlet pipe; 42-Conveying pipe; 5-Powder silo; 51-First weighing and metering unit; 52-Discharge valve; 6-Liquid raw material premixing tank; 61-Second weighing and metering unit; 7-Liquid raw material tank; 71-Third weighing and metering unit. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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 application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0037] Please refer to the following: Figure 1 and 2 The automated two-component sealant dispersion and mixing equipment provided in the embodiments of this application will now be described. An automated two-component sealant dispersion and mixing equipment, suitable for producing two-component sealants, includes:

[0038] The negative pressure vessel body contains an internal stirring unit and a dispersion unit, and a powder inlet is located at the top; and

[0039] The feeding assembly is located at the top of the negative pressure vessel and is suitable for adding powder into the negative pressure vessel through the powder inlet.

[0040] The feeding assembly includes:

[0041] A sealed housing with a discharge port at the bottom, which connects to the powder inlet; and

[0042] The filter baffle is suitable for filtering powder in the airflow; the filter baffle divides the inner cavity of the sealed shell into a material collection chamber and an exhaust chamber, and the material discharge port is located at the bottom of the material collection chamber.

[0043] The sealed shell is also equipped with an airflow inlet connected to the material collection chamber and an exhaust outlet connected to the exhaust chamber.

[0044] Compared with the prior art, the automated two-component sealant dispersion and mixing equipment of this application embodiment has the feeding component set at the top of the negative pressure vessel, which can make full use of the space at the top of the negative pressure vessel, reduce the occupation of the space around the negative pressure vessel, and facilitate installation and layout.

[0045] The airflow carrying powder enters the collection chamber through the airflow inlet. The powder is separated from the airflow by the filter baffle and remains in the collection chamber. The material in the collection chamber can fall into the negative pressure vessel through the discharge port and the powder inlet. The airflow enters the exhaust chamber after passing through the filter baffle and is finally discharged from the exhaust port, completing the automatic feeding, making feeding more convenient and reducing the amount of labor.

[0046] In this embodiment, the negative pressure vessel can refer to the structure of an existing dispersion and mixing vessel, and its interior is equipped with a stirring unit and a dispersion unit for mixing and dispersing materials. During dispersion and stirring, the interior of the negative pressure vessel is maintained at a negative pressure by a negative pressure machine. The vessel wall of the negative pressure vessel is provided with a heat insulation layer, so that the internal materials can be maintained at a certain temperature. The negative pressure vessel can be equipped with a temperature gauge, a pressure gauge, and an observation window.

[0047] The feeding assembly is installed at the top of the negative pressure vessel, connecting the discharge port at the bottom of the sealed shell with the powder inlet. An airflow inlet is located at the bottom of the sealed shell, and an exhaust port at the top. A filter baffle is installed in the middle of the sealed shell, dividing the inner cavity into an upper collection chamber and a lower exhaust chamber. Airflow carrying powder enters the collection chamber through the airflow inlet, where the powder is separated from the airflow by the filter baffle and remains in the collection chamber. The material in the collection chamber automatically falls into the negative pressure vessel through the discharge port and the powder inlet. After passing through the filter baffle and entering the exhaust chamber, the airflow is finally discharged from the exhaust port.

[0048] Please see Figure 1 and2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, a discharge control valve is provided between the discharge port and the powder inlet.

[0049] In this embodiment, by setting a material discharge control valve, on the one hand, the powder can be controlled to enter the negative pressure vessel, and on the other hand, the gas exchange between the sealed shell and the negative pressure vessel can be isolated, so as to prevent harmful gases in the negative pressure vessel from leaking out through the sealed shell, and also to prevent the airflow in the sealed shell from affecting the pressure and temperature inside the negative pressure vessel.

[0050] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, the filter baffle includes:

[0051] The partition body has multiple through holes; the partition body is fixed inside the sealed shell, dividing the inner cavity of the sealed shell into a material collection chamber and an exhaust chamber; and

[0052] Multiple filter bags are located inside the collection chamber and are respectively connected to each through hole.

[0053] In this embodiment, multiple filter bags are set on the partition body to increase the filtration area and better filter the powder in the airflow.

[0054] In practice, the shape of the baffle body is the same as the cross-sectional shape of the sealed shell. For example, if the sealed shell is cylindrical, then the baffle body is circular. The cylindrical sealed shell is vertically installed at the top of the negative pressure vessel, and the baffle body is horizontally installed at a position slightly above the middle of the sealed shell.

[0055] The partition body can have multiple evenly spaced circular through holes, with each filter bag connected to one of these holes. When airflow passes through the partition body, it enters the filter bags through the through holes, whereupon the powder is separated from the filter bags.

[0056] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, the feeding assembly further includes a backflushing structure, which includes:

[0057] A buffer gas tank is located on the outside of the sealed housing;

[0058] Multiple sets of nozzles are located inside the exhaust chamber, and each set of nozzles is connected to the buffer air tank through a backflush valve; each nozzle in each set is directed one-to-one toward the filter bag.

[0059] After prolonged operation of the feeding assembly, powder can clog the filter bag. The backflushing structure in this embodiment can backflush the filter bag, thus cleaning it.

[0060] Specifically, each filter bag is equipped with a corresponding nozzle, and all nozzles are divided into multiple groups. Each group can contain one or more nozzles, and the nozzles in the same group are connected to a buffer gas tank via a backflush valve. During backflush, a certain amount of high-pressure gas is buffered in the buffer gas tank. By opening different backflush valves, the corresponding filter bags can be backflushed through different groups of nozzles. In practice, the backflush valves can be electrically controlled for convenient remote control.

[0061] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, a drain valve is also provided at the bottom of the buffer tank.

[0062] In this embodiment, the water accumulated in the buffer tank can be drained using a drain valve to prevent water from being sprayed into the filter bag during the backflushing process.

[0063] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, the automated two-component sealant dispersion and mixing equipment further includes:

[0064] The circulating fan has an air inlet connected to the air outlet via an air inlet pipe, and an air outlet connected to the airflow inlet via a material conveying pipe.

[0065] The powder silo has a first weighing unit at the bottom, which detects the change in the weight of the powder in the silo; the discharge port at the bottom of the powder silo is connected to the conveying pipeline for feeding.

[0066] In this embodiment, the circulating fan forms a circulation loop with the sealed shell through the air intake pipe and the material conveying pipe, allowing the airflow to circulate internally, reducing gas emissions and preventing pollution of the workshop environment. By setting a first weighing unit at the bottom of the powder silo, the first weighing unit can detect the decrease in the weight of the powder in the powder silo in real time when adding material to the negative pressure vessel, thereby controlling the amount of powder added to the negative pressure vessel each time.

[0067] In practical implementation, the first weighing unit can use existing weight sensors and supporting components. It can be installed on the base of the powder silo, or it can be installed on each support leg of the powder silo.

[0068] The connection method between the discharge port at the bottom of the powder silo and the conveying pipeline can refer to various pneumatic conveying methods on the market. Specifically, the discharge port at the bottom of the powder silo can be connected to the conveying pipeline through a T-shaped pipe, allowing the powder discharged from the discharge port to enter the feeding assembly along with the airflow in the conveying pipeline. Specifically, the straight section of the T-shaped pipe is connected to the conveying pipeline, and the branch end is connected to the discharge port of the powder silo. The branch end of the T-shaped pipe is inclined towards the air inlet end of the straight section, that is, the angle between the branch end and the air inlet end of the straight section is less than 90° (e.g., 60°), reducing the airflow in the conveying pipeline from entering the powder silo.

[0069] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, there are multiple powder silos, and each powder silo is equipped with a first weighing and metering unit at its bottom; each powder silo has a discharge valve at its discharge port, which is connected to the conveying pipeline for feeding.

[0070] In this embodiment, different materials, such as light calcium carbonate and heavy calcium carbonate, can be metered separately using multiple powder silos. In use, the discharge valve of one powder silo can be opened while the discharge valves of the other silos are closed, thus achieving the conveying of powder from a single silo. Of course, in some cases, the discharge valves of two or more powder silos can be opened simultaneously, thereby achieving the simultaneous conveying of powder from multiple silos.

[0071] In practice, the discharge ports of each powder silo can be connected to the conveying pipeline via T-shaped pipes.

[0072] Please see Figure 1 and 2 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, there are multiple powder silos, and each powder silo is equipped with a first weighing and metering unit at its bottom; each powder silo has a discharge valve at its discharge port, and each powder silo's discharge port is connected to a collecting pipe, which is connected to a conveying pipeline for feeding.

[0073] In this embodiment, different materials, such as light calcium carbonate and heavy calcium carbonate, can be metered separately using multiple powder silos. In use, the discharge valve of one powder silo can be opened while the discharge valves of the other silos are closed, thus achieving the conveying of powder from a single silo. Of course, in some cases, the discharge valves of two or more powder silos can be opened simultaneously, thereby achieving the simultaneous conveying of powder from multiple silos.

[0074] In practice, the discharge ports of each powder silo are connected to one end of the collecting pipe, and the other end of the collecting pipe is connected to the conveying pipeline via a T-shaped pipe. More specifically, the collecting pipe can be vertically arranged, with the discharge ports of each powder silo connected to the upper end of the collecting pipe, and the lower end of the collecting pipe connected to the conveying pipeline via a T-shaped pipe.

[0075] Please see Figure 1 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, the automated two-component sealant dispersion and mixing equipment also includes a liquid raw material premixing tank, the outlet of which is connected to the liquid inlet of the negative pressure vessel; a second weighing and metering unit is provided at the bottom of the liquid raw material premixing tank, which is suitable for detecting the weight change of the mixed liquid raw material in the liquid raw material premixing tank.

[0076] In this embodiment, various liquid raw materials for producing two-component sealants (such as two-component polyurethane sealants and two-component polysulfide sealants) can be premixed in a liquid raw material premixing tank. When adding materials to the negative pressure vessel, the weight reduction of the liquid raw materials in the liquid raw material premixing tank is detected in real time by the second weighing and metering unit, thereby controlling the amount of mixed liquid raw materials added to the negative pressure vessel each time.

[0077] In practical implementation, the second weighing unit can utilize existing weight sensors and supporting components. It can be installed on the base of the liquid raw material premixing tank, or it can be installed on each leg of the liquid raw material premixing tank. The liquid raw material premixing tank can deliver the mixed liquid raw material to the negative pressure vessel via a liquid pump.

[0078] Please see Figure 1 As a specific embodiment of the automated two-component sealant dispersion and mixing equipment provided in this application, the automated two-component sealant dispersion and mixing equipment also includes multiple liquid raw material tanks, the outlet of each liquid raw material tank is connected to the inlet of the liquid raw material premixing tank; a third weighing and metering unit is provided at the bottom of each liquid raw material tank, the third weighing and metering unit is suitable for detecting the weight change of the liquid raw material in the liquid raw material tank.

[0079] In this embodiment, each liquid raw material tank contains various liquid raw materials for two-component sealants (such as two-component polyurethane sealants and two-component polysulfide sealants). A third weighing unit is installed at the bottom of each liquid raw material tank. The second weighing unit can detect the decrease in weight of the liquid raw materials in each tank in real time, thereby controlling the amount of each liquid raw material added to the liquid raw material premixing tank.

[0080] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automated two-component sealant dispersion and mixing apparatus suitable for producing a two-component sealant, characterized in that, include: The negative pressure vessel body is equipped with a stirring unit and a dispersion unit inside, and a powder inlet is located at the top. as well as A feeding assembly is located at the top of the negative pressure vessel and is adapted to add powder to the negative pressure vessel through the powder inlet. The feeding assembly includes: A sealed housing with a discharge port at the bottom, the discharge port being connected to the powder inlet; and A filter baffle is suitable for filtering powder in an airflow; the filter baffle divides the inner cavity of the sealed shell into a material collection chamber and an exhaust chamber, and the material discharge port is located at the bottom of the material collection chamber; The sealed housing is also provided with an airflow inlet communicating with the material collection chamber and an exhaust outlet communicating with the exhaust chamber.

2. The automated two-component sealant dispersion and mixing apparatus of claim 1, wherein, A discharge control valve is provided between the discharge port and the powder inlet.

3. The automated two-component sealant dispersion and mixing apparatus of claim 1, wherein, The filter baffle includes: The partition body has multiple through holes; the partition body is fixed inside the sealed housing, dividing the inner cavity of the sealed housing into the material collection chamber and the exhaust chamber; and Multiple filter bags are located inside the collection chamber and are respectively connected to each of the through holes.

4. The automated two-component sealant dispersion and mixing equipment as described in claim 3, characterized in that, The feeding assembly further includes a backflushing structure, which comprises: A buffer gas tank is located on the outside of the sealed housing; Multiple sets of nozzles are located inside the exhaust chamber, and each set of nozzles is connected to the buffer gas tank through a backflush valve; each nozzle in each set is directed one-to-one toward the filter bag.

5. The automated two-component sealant dispersion and mixing equipment as described in claim 4, characterized in that, The bottom of the buffer tank is also equipped with a drain valve.

6. The automated two-component sealant dispersion and mixing equipment as described in claim 1, characterized in that, The automated two-component sealant dispersion and mixing equipment also includes: The circulating fan has an air inlet connected to the air outlet via an air inlet pipe, and an air outlet connected to the airflow inlet via a material conveying pipe. The powder silo has a first weighing unit at the bottom, which detects the change in the weight of the powder in the silo; the discharge port at the bottom of the powder silo is connected to the conveying pipeline for feeding.

7. The automated two-component sealant dispersion and mixing equipment as described in claim 6, characterized in that, There are multiple powder silos, and the bottom of each powder silo is equipped with the first weighing and metering unit; each powder silo has a discharge valve at its discharge port, which is connected to the conveying pipeline for feeding.

8. The automated two-component sealant dispersion and mixing equipment as described in claim 6, characterized in that, There are multiple powder silos, and the bottom of each powder silo is equipped with the first weighing and metering unit; each powder silo has a discharge valve at its discharge port, and the discharge port of each powder silo is connected to a collecting pipe, which is connected to the conveying pipeline for feeding.

9. The automated two-component sealant dispersion and mixing equipment as described in claim 1, characterized in that, The automated two-component sealant dispersion and mixing equipment also includes a liquid raw material premixing tank, the outlet of which is connected to the liquid inlet of the negative pressure vessel; a second weighing unit is provided at the bottom of the liquid raw material premixing tank, which is adapted to detect the weight change of the mixed liquid raw material in the liquid raw material premixing tank.

10. The automated two-component sealant dispersion and mixing equipment as described in claim 9, characterized in that, The automated two-component sealant dispersion and mixing equipment also includes multiple liquid raw material tanks, the outlet of each liquid raw material tank being connected to the inlet of the liquid raw material premixing tank; each liquid raw material tank is provided with a third weighing unit at its bottom, the third weighing unit being adapted to detect changes in the weight of the liquid raw material in the liquid raw material tank.

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