A dust collector having a material metering discharge valve

Abstract

The utility model discloses a dust collecting cabinet with material metering unloading valve belongs to material unloading field, including dust collecting cabinet main part, the shell of dust collecting cabinet main part is cylindrical, be provided with the air inlet structure for gas entering and the air outlet structure for gas discharging on the shell, the cylindrical shell lower extreme extension is provided with the funnel shape material concentration unit, the bottom of material concentration unit is installed with metering unloading valve. The utility model discloses through funnel shape material concentration unit can utilize gravity natural gathering collection dust and other materials, avoid material residual, and the metering unloading valve of material concentration unit bottom realizes the integration design of material collection and metering unloading, need not additional increase metering device, has simplified the overall structure, guarantees the unloading process measurable simultaneously, satisfies accurate control amount demand.

Description

Technical Field

[0001] This utility model belongs to the field of material unloading, specifically, it relates to a dust collection cabinet with a material metering unloading valve. Background Technology

[0002] In industrial production, the collection and treatment of dusty materials is a crucial step in ensuring a clean production environment and preventing dust pollution and safety hazards. Dust collection cabinets, as commonly used dust collection equipment, are widely used in chemical, metallurgical, and building materials industries. The core function of a dust collection cabinet is to introduce dust-laden gas into the cabinet through airflow circulation, separate dust and gas using filtration components (such as filter bags and filter cartridges), allow the purified gas to be discharged, and collect the dust inside the cabinet before discharging it through the unloading structure.

[0003] However, in the existing structural design of dust collection cabinets, the bottom material collection structure of the dust collection cabinet is mostly a simple inclined plate or shallow cone design. Dust is easy to remain and accumulate at the bottom, making it difficult to completely collect at the discharge port, resulting in incomplete discharge. In addition, the discharge of traditional dust collection cabinets mostly relies on ordinary gate valves, butterfly valves, etc., which can only realize the on-off control of discharge and cannot measure the discharge amount.

[0004] Therefore, this application is hereby submitted. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology, optimize the structure of the existing dust collection cabinet unloading valve, make the unloading valve easy to discharge and unload, and make the unloading process metered and controlled, so as to provide a dust collection cabinet with a material metering unloading valve.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A dust collection cabinet with a material metering and unloading valve includes a dust collection cabinet body, the outer shell of the dust collection cabinet body is cylindrical, and the outer shell is provided with an air inlet structure for gas entry and an air outlet structure for gas discharge.

[0008] The lower end of the cylindrical outer shell extends to form a funnel-shaped material collection section, and a metering discharge valve is installed at the bottom of the material collection section.

[0009] Furthermore, a dust collection chamber is provided inside the main body of the dust collection cabinet, and a pressure sensor is installed on the main body of the dust collection cabinet; the detection end of the pressure sensor is set facing into the dust collection chamber.

[0010] Furthermore, the air intake structure is a first pipe with an air intake port, and the air outlet structure is a second pipe with an air outlet port.

[0011] The first pipeline is equipped with a one-way explosion-proof valve and a first differential pressure sensor, and the second pipeline is equipped with a second differential pressure sensor.

[0012] Furthermore, an explosion vent is provided on the side of the main body of the dust collection cabinet.

[0013] Furthermore, a temperature sensor is installed on the main body of the dust collection cabinet, and the detection end of the temperature sensor is located inside the main body of the dust collection cabinet.

[0014] Furthermore, the metering discharge valve includes a valve body, and a drive motor is provided on one side of the valve body.

[0015] Furthermore, the valve body has a single-sided opening structure, with a flange installed on one side of the opening. The flange has a central opening, and a drive shaft connected to the output end of the drive motor is installed at the opening. The part of the drive shaft located inside the valve body is equipped with a discharge section.

[0016] Furthermore, the unloading section is a star-shaped unloading rotor, which includes multiple unloading plates arranged in a uniform circumferential array along the axis of the drive shaft.

[0017] Furthermore, a metering unit is installed on the side of the drive shaft located outside the valve body and away from the drive motor.

[0018] Furthermore, the measuring unit includes a rotating part and a measuring part provided corresponding to the rotating part. The rotating part is an impeller structure with blades, and the tips of the blades are provided corresponding to the measuring part.

[0019] The number of blades is the same as the number of unloading plates, and each blade is on the same plane as its corresponding unloading plate.

[0020] After adopting the above technical solution, the dust collection cabinet with material metering and unloading valve provided by this utility model has the following beneficial effects compared with the prior art:

[0021] (1) The dust and other materials can be collected by gravity through the funnel-shaped material collection section, avoiding material residue. The metering unloading valve at the bottom of the material collection section realizes the integrated design of material collection and metering unloading, without the need for additional metering devices, which simplifies the overall structure and ensures that the unloading process can be metered to meet the requirements of precise quantity control.

[0022] (2) The pressure sensor installed in the dust collection chamber can monitor the changes in air pressure inside the dust collection cabinet in real time. When the air pressure is too high or too low, it can provide timely feedback, which makes it easy for operators to judge whether the dust collection chamber is blocked, leaking air or the filter components are malfunctioning, so as to maintain it in time, ensure the continuous and stable operation of the dust collection cabinet, and avoid the dust collection effect or safety hazards caused by abnormal air pressure.

[0023] (3) When the pressure inside the dust collection cabinet exceeds the safety threshold due to abnormality (such as dust explosion or rapid gas expansion), the explosion relief window on the side of the main body of the dust collection cabinet can quickly rupture and release the excessive pressure, thus preventing the main body of the dust collection cabinet from cracking due to overpressure, protecting the safety of the equipment body and the surrounding environment, and reducing accident losses.

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the star-shaped unloading rotor structure of this utility model.

[0029] In the diagram: 1. Dust collection cabinet body; 2. First differential pressure sensor; 3. One-way explosion-proof valve; 4. Air inlet; 5. Pressure sensor; 6. Second differential pressure sensor; 7. Explosion relief window; 8. Temperature sensor; 9. Air outlet; 10. Metering unloading valve; 11. Level gauge; 12. Rotary rotary valve; 13. Drive shaft; 14. Flange; 15. Rotating part; 16. Measuring part.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" 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 utility model 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 utility model.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] like Figure 1 and Figure 2 As shown, the present invention provides a dust collection cabinet with a material metering and unloading valve, including a dust collection cabinet body 1. The outer shell of the dust collection cabinet body 1 is cylindrical, and the outer shell is provided with an air inlet structure for gas entry and an air outlet structure for gas discharge.

[0036] The lower end of the cylindrical outer shell extends to form a funnel-shaped material collection section, and a metering discharge valve 10 is installed at the bottom of the material collection section.

[0037] The main body of the dust collection cabinet 1 uses a cylindrical shell, which is conducive to the uniform distribution of airflow inside the cabinet, reduces airflow dead zones, and improves dust collection efficiency. The funnel-shaped material collection section at the bottom of the shell can use gravity to naturally collect dust and other materials, avoiding material residue. The metering and unloading valve 10 at the bottom of the material collection section realizes the integrated design of material collection and metering unloading, eliminating the need for additional metering devices, simplifying the overall structure, and ensuring that the unloading process can be metered to meet the requirements of precise quantity control.

[0038] A bracket is installed on the main body 1 of the dust collection cabinet. The bracket is a triangular bracket with an annular support at the top, which is installed in conjunction with the bottom edge of the cylindrical part of the main body 1 of the dust collection cabinet.

[0039] Preferably, a dust collection chamber is provided inside the dust collection cabinet body 1, and a pressure sensor 5 is installed on the dust collection cabinet body 1; the detection end of the pressure sensor 5 is positioned facing into the dust collection chamber. Specifically, a cloth bag or other container can be provided in the dust collection cabinet to serve as the dust collection chamber.

[0040] The pressure sensor 5 installed inside the dust collection chamber can monitor the changes in air pressure in the chamber in real time. When the air pressure is too high or too low, it can provide timely feedback, which makes it easy for operators to judge whether the dust collection chamber is blocked, leaking air or the filter components are malfunctioning, so as to maintain it in time, ensure the continuous and stable operation of the dust collection cabinet, and avoid the dust collection effect or safety hazards caused by abnormal air pressure.

[0041] The air intake structure is a first pipe with an air inlet 4, and the air outlet structure is a second pipe with an air outlet 9; a one-way explosion-proof valve 3 and a first differential pressure sensor 2 are installed on the first pipe, and a second differential pressure sensor 6 is installed on the second pipe.

[0042] The one-way explosion-proof valve 3 on the first pipeline can effectively prevent flames, high-temperature gases or explosion shock waves that may be generated inside the dust collection cabinet from spreading back to the air intake side, thereby improving equipment safety.

[0043] The first differential pressure sensor 2 and the second differential pressure sensor 6 work together to detect the pressure difference between the inlet and outlet sides in real time. By measuring the changes in the difference, the degree of blockage of the filter components can be determined, providing an accurate basis for maintenance cycles and avoiding blind shutdowns for cleaning.

[0044] Preferably, the dust collection cabinet body 1 is provided with an explosion relief window 7 on its side. When the pressure inside the cabinet exceeds the safety threshold due to abnormality (such as dust explosion or rapid gas expansion), the explosion relief window 7 on the side of the dust collection cabinet body 1 can quickly rupture and release the excessive pressure, preventing the dust collection cabinet body 1 from exploding due to overpressure, protecting the safety of the equipment body and the surrounding environment, and reducing accident losses.

[0045] Furthermore, a temperature sensor 8 is installed on the main body 1 of the dust collection cabinet, and the detection end of the temperature sensor 8 is located inside the main body 1 of the dust collection cabinet. The internal temperature sensor 8 can monitor the internal temperature of the dust collection cabinet in real time. When the temperature rises abnormally (such as due to dust friction, static electricity or external heat sources), it can provide timely warnings, so that operators can take cooling or shutdown measures to prevent safety accidents such as dust spontaneous combustion or explosion caused by high temperature, and improve the safety of equipment operation.

[0046] The metering discharge valve 10 includes a valve body, on one side of which a drive motor is installed. The motor drive can precisely control the discharge speed and start / stop, improving the stability and controllability of the discharge process and avoiding material accumulation or uneven discharge. Furthermore, a stepper motor or similar device can be used to precisely control the rotation angle and can also rotate back and forth to avoid uneven material accumulation.

[0047] The valve body has a single-sided opening structure. A flange 14 is installed on one side of the opening. The flange 14 has a central hole, and a drive shaft 13 connected to the output end of the drive motor is installed at the hole. The part of the drive shaft 13 located inside the valve body is equipped with a discharge part.

[0048] Preferably, the unloading section is a star-shaped unloading rotor 12, which includes a plurality of unloading plates arranged in a uniform circumferential array along the axis of the drive shaft 13.

[0049] Multiple discharge plates of the star-shaped discharge rotor 12 are evenly arranged in a circular array along the drive shaft 13. During rotation, they can continuously receive and transport materials. At the same time, the cooperation between the discharge plates and the inner wall of the valve body forms a dynamic seal, reducing the leakage of gas from the cabinet with the material during discharge. This ensures smooth discharge and avoids the imbalance of air pressure inside the dust collection cabinet from affecting the dust collection effect.

[0050] A metering unit is installed on the side of the drive shaft 13 located outside the valve body and away from the drive motor. The metering unit on the outside of the drive shaft 13 operates synchronously with the internal unloading unit, which can monitor the operating status of the unloading unit in real time (such as speed and number of rotations), and calculate the actual unloading amount through metering data, so as to realize real-time metering and feedback of the unloading process, meet the requirements for precise control of material output, and is especially suitable for scenarios that require quantitative unloading.

[0051] The metering unit includes a rotating part 15 and a measuring part 16 corresponding to the rotating part 15. The rotating part 15 is an impeller structure with blades, and the top of the blades is corresponding to the measuring part 16. The number of blades is the same as the number of unloading plates, and each blade is on the same plane as its corresponding unloading plate.

[0052] The number of blades in the metering unit is the same as that of the unloading plate and they are coplanar, so that the number of blade rotations corresponds perfectly to the cycle of material pushing by the unloading plate. The measuring unit 16 can accurately calculate the unloading amount (such as the fixed amount of material pushed by the unloading plate corresponding to each blade) by detecting the number of blade rotations, which greatly improves the metering accuracy. The impeller-type rotating unit 15 has a simple structure and sensitive response, ensuring that the metering data is real-time and accurate, providing a reliable basis for material control.

[0053] Furthermore, a level gauge 11 is installed on the funnel-shaped material collection section. The angle at which the motor is driven to rotate is determined based on the material level data read by the level gauge 11, thereby realizing unloading.

[0054] Dust-laden gas enters through the first pipe with an air inlet 4. The one-way explosion-proof valve 3 on the first pipe can prevent the back diffusion of flames, high-temperature gases or explosion shock waves that may be generated inside the cabinet, ensuring the safety of the air inlet side. Subsequently, the dust-laden gas enters the interior of the cylindrical dust collection cabinet body 1. The cylindrical shell facilitates the uniform distribution of airflow to reduce dead corners. The dust in the gas is captured by the filter components such as cloth bags in the dust collection chamber. The filtered clean gas is discharged through the second pipe with an air outlet 9.

[0055] During this process, the pressure sensor 5 on the main body 1 of the dust collection cabinet monitors the air pressure in the dust collection chamber in real time, the temperature sensor 8 monitors the temperature inside the cabinet, and the first differential pressure sensor 2 and the second differential pressure sensor 6 work together to detect the pressure difference between the inlet and outlet sides. These are used to determine whether the dust collection chamber is blocked or leaking, to prevent safety accidents caused by high temperature, and to determine the degree of blockage of the filter components to clarify the maintenance cycle. If the pressure inside the cabinet exceeds the threshold due to abnormality, the explosion relief window 7 on the side will quickly rupture to release pressure and protect the equipment.

[0056] The captured dust naturally gathers to the funnel-shaped material collection section at the bottom of the outer shell under the action of gravity. After the material level gauge 11 on the material collection section reads the material level data, it controls the start of the drive motor of the metering unloading valve 10 (a stepper motor can be selected to precisely control the rotation angle or reciprocate to prevent material accumulation). The motor drives the star-shaped unloading rotor 12 in the valve body to rotate through the transmission shaft 13 at the center of the flange 14 on one side of the valve body. The unloading plates with a uniform circumferential array on the rotor continuously receive and transport the material, while forming a dynamic seal with the inner wall of the valve body to reduce the leakage of gas in the cabinet with the material. Meanwhile, the metering section on the side of the transmission shaft 13 away from the motor moves synchronously. The blades of its impeller-type rotating section 15 (the number is the same as the unloading plate and they are coplanar) rotate with the transmission shaft 13. The measuring section 16 accurately calculates the unloading amount by detecting the number of blade rotations, and finally realizes efficient dust collection, safe monitoring and accurate metering unloading.

[0057] Compared with the prior art, the above embodiments of this utility model have the following beneficial technical effects:

[0058] The funnel-shaped material collection section allows for the natural collection of dust and other materials by gravity, preventing material residue. The metering and unloading valve 10 at the bottom of the material collection section integrates material collection and metering unloading, eliminating the need for additional metering devices, simplifying the overall structure, and ensuring that the unloading process is measurable, meeting the requirements for precise quantity control.

[0059] The pressure sensor 5 installed in the dust collection chamber can monitor the changes in air pressure inside the dust collection cabinet in real time. When the air pressure is too high or too low, it can provide timely feedback, which makes it easy for operators to judge whether the dust collection chamber is blocked, leaking air or the filter components are malfunctioning, so as to maintain it in time, ensure the continuous and stable operation of the dust collection cabinet, and avoid the dust collection effect or safety hazards caused by abnormal air pressure.

[0060] The explosion relief window 7 on the side of the dust collection cabinet body 1 can quickly rupture and release pressure when the pressure inside the cabinet exceeds the safety threshold due to abnormality (such as dust explosion or rapid gas expansion), thus preventing the dust collection cabinet body 1 from exploding due to overpressure, protecting the safety of the equipment body and the surrounding environment, and reducing accident losses.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-mentioned technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A dust collection cabinet with a material metering and unloading valve, characterized in that: It includes a dust collection cabinet body, the outer shell of which is cylindrical, and the outer shell is provided with an air inlet structure for gas entry and an air outlet structure for gas exit. The lower end of the cylindrical outer shell is provided with a funnel-shaped material collection section, and a metering discharge valve is installed at the bottom end of the material collection section.

2. A dust collection cabinet with a material metering and unloading valve according to claim 1, characterized in that: The dust collection cabinet body is provided with a dust collection chamber, and a pressure sensor is installed on the dust collection cabinet body; the detection end of the pressure sensor is set facing the dust collection chamber.

3. A dust collection cabinet with a material metering and unloading valve according to claim 1, characterized in that: The air intake structure is a first pipe with an air inlet, and the air outlet structure is a second pipe with an air outlet. The first pipeline is equipped with a one-way explosion-proof valve and a first differential pressure sensor, and the second pipeline is equipped with a second differential pressure sensor.

4. A dust collection cabinet with a material metering and unloading valve according to claim 1, characterized in that: The dust collection cabinet body is equipped with an explosion vent window on its side.

5. A dust collection cabinet with a material metering and unloading valve according to claim 1, characterized in that: A temperature sensor is installed on the main body of the dust collection cabinet, and the detection end of the temperature sensor is located inside the main body of the dust collection cabinet.

6. A dust collection cabinet with a material metering and unloading valve according to any one of claims 1-5, characterized in that: The metering unloading valve includes a valve body, and a drive motor is provided on one side of the valve body.

7. A dust collection cabinet with a material metering and unloading valve according to claim 6, characterized in that: The valve body has a single-sided opening structure, with a flange installed on one side of the opening. The flange has a central hole, and a drive shaft connected to the output end of the drive motor is installed at the hole. The part of the drive shaft located inside the valve body is equipped with a discharge part.

8. A dust collection cabinet with a material metering and unloading valve according to claim 7, characterized in that: The unloading section is a star-shaped unloading rotor, which includes multiple unloading plates arranged in a uniform circumferential array along the axis of the drive shaft.

9. A dust collection cabinet with a material metering and unloading valve according to claim 8, characterized in that: The metering unit is installed on the side of the drive shaft located outside the valve body and away from the drive motor.

10. A dust collection cabinet with a material metering and unloading valve according to claim 9, characterized in that: The metering unit includes a rotating part and a measuring part corresponding to the rotating part. The rotating part is an impeller structure with blades, and the tip of the blades is corresponding to the measuring part. The number of blades is the same as the number of unloading plates, and each blade is on the same plane as its corresponding unloading plate.

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