Chromium powder adding device capable of preventing dust raising

Abstract

A dust-raising-preventing chromium powder adding device comprises an adding bin, a feeding port is formed in the top of the adding bin, a discharging port is formed in the bottom of the adding bin, a spiral conveying motor is installed on the feeding port in a penetrating mode, the spiral conveying motor is connected with a closed conveying mechanism, and the closed conveying mechanism penetrates through the top of the adding bin and extends into the adding bin. A feeding port is formed in the top of the adding bin, a discharging port is formed in the bottom of the adding bin, the closed conveying mechanism is connected with the dispersing head through a spiral conveying shaft, an adsorption plate is installed on the adsorption support, and the negative pressure adsorption mechanism comprises an adsorption cavity and a filtering cavity and is communicated with the adding bin through a ventilation opening. Flying dust is comprehensively treated in cooperation with the dispersing head and the adsorption plate, dust diffusion in the chromium powder adding process is effectively restrained, environmental pollution is reduced, the working environment quality is improved, and the beneficial effects of being reasonable in structure, convenient to operate and excellent in environmental protection performance are achieved.

Description

Technical Field

[0001] This utility model relates to the field of material conveying and environmental protection equipment technology, and in particular to a dust-preventing chromium powder adding device. Background Technology

[0002] With the continuous development of materials processing and environmental protection, chromium powder has been widely used in various industrial applications. However, dust problems have always been a problem for enterprises during the chromium powder addition process. These problems not only affect the working environment, but may also lead to health risks and environmental pollution. Although the existing chromium powder addition devices have solved some problems to a certain extent, they still have some shortcomings.

[0003] The problem indicates that current chromium powder adding devices on the market are ineffective in dealing with dust issues during the chromium powder adding process, leading to a deterioration of the working environment, increased health risks, and environmental pollution.

[0004] Therefore, it is essential to provide a dust-proof chromium powder adding device to address the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a dust-proof chromium powder adding device. By using a negative pressure adsorption mechanism installed on the adding chamber in conjunction with a closed conveying mechanism, dust generated during the chromium powder adding process can be effectively controlled. Inside the adding chamber, a dispersion head installed at the bottom of the spiral conveyor shaft and an adsorption plate installed on the adsorption bracket achieve comprehensive dust treatment. During operation, a negative pressure fan is used to sequentially extract and filter the air in the adsorption chamber, which can further suppress dust generated during the chromium powder adding process, reduce environmental pollution, and improve the quality of the working environment.

[0006] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0007] A dust-proof chromium powder adding device is provided, including an adding chamber, an inlet installed at the top of the adding chamber, an outlet opened at the bottom of the adding chamber, a screw conveyor motor installed through the inlet, the screw conveyor motor connected to a closed conveying mechanism, the closed conveying mechanism penetrating through the top of the adding chamber and extending into the interior of the adding chamber, negative pressure adsorption mechanisms are respectively arranged on both sides of the adding chamber, and a ventilation opening is opened between the negative pressure adsorption mechanism and the adding chamber.

[0008] The closed conveying mechanism includes a screw conveyor shaft, a dispersing head installed at the bottom of the screw conveyor shaft, a synchronous rotating shaft sleeved on the screw conveyor shaft, two sets of adsorption brackets installed on the synchronous rotating shaft, and adsorption plates sleeved on the adsorption brackets.

[0009] The negative pressure adsorption mechanism includes an adsorption chamber and a filter chamber. A partition is installed between the adsorption chamber and the filter chamber. Exhaust ports are provided at the top of the adsorption chamber and the filter chamber respectively. The bottom of the adsorption chamber and the filter chamber are connected to the ventilation port.

[0010] Specifically, an adjustment section is provided in the center of the screw conveyor shaft, and an elastic support component is installed inside the adjustment section.

[0011] Specifically, both the adsorption chamber and the filter chamber are equipped with electrically controlled valves at the bottom, and adsorption plates and filter plates are installed on the adsorption chamber and the filter chamber, respectively.

[0012] Specifically, the two sets of adsorption supports are installed parallel to the inner wall of the addition chamber, and the two sets of adsorption plates are installed symmetrically with the spiral conveyor shaft as the central axis, with the adsorption plates in contact with the inner wall of the addition chamber.

[0013] Specifically, limit rings are installed at both the top and bottom ends of the adsorption plate, and a protective pad is installed on the limit ring near the bottom of the adsorption plate.

[0014] This invention effectively controls dust generation during the chromium powder addition process by using a negative pressure adsorption mechanism installed on the addition chamber in conjunction with a closed conveying mechanism. Inside the addition chamber, a dispersion head installed at the bottom of the spiral conveyor shaft and an adsorption plate installed on the adsorption bracket achieve comprehensive dust control. During operation, a negative pressure fan sequentially extracts and filters the air in the adsorption chamber, further suppressing dust generation during the chromium powder addition process, reducing environmental pollution, and improving the quality of the working environment. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0016] Figure 1 This is a front view of a dust-proof chromium powder adding device according to this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the adsorption plate in a dust-proof chromium powder adding device of this utility model.

[0018] from Figures 1 to 2 Including:

[0019] 1. Addition bin; 2. Feed inlet; 3. Discharge outlet; 4. Screw conveyor motor; 5. Screw conveyor shaft; 6. Dispersing head; 7. Synchronous rotating shaft; 8. Adsorption bracket; 9. Adsorption plate; 10. Adsorption chamber; 11. Filter chamber; 12. Partition; 13. Exhaust port; 14. Ventilation port; 15. Adjustment section; 16. Elastic support component; 17. Electrically controlled valve; 18. Adsorption insert plate; 19. Filter insert plate; 20. Limiting ring; 21. Protective pad. Detailed Implementation

[0020] The present invention will be further described in conjunction with the following embodiments.

[0021] Example 1:

[0022] like Figure 1-2 As shown, a dust-proof chromium powder adding device includes an adding chamber 1 with an inlet 2 at the top and an outlet 3 at the bottom. A screw conveyor motor 4 is installed through the inlet 2, and the screw conveyor motor 4 is connected to a closed conveying mechanism. The closed conveying mechanism penetrates the top of the adding chamber 1 and extends into the interior of the adding chamber 1. Negative pressure adsorption mechanisms are respectively set on both sides of the adding chamber 1. A ventilation port 14 is opened between the negative pressure adsorption mechanism and the adding chamber 1. The closed conveying mechanism includes a screw conveyor shaft 5, a dispersing head 6 is installed at the bottom of the screw conveyor shaft 5, a synchronous rotating shaft 7 is sleeved on the screw conveyor shaft 5, two sets of adsorption brackets 8 are installed on the synchronous rotating shaft 7, and adsorption plates 9 are sleeved on the adsorption brackets 8. The negative pressure adsorption mechanism includes an adsorption chamber 10 and a filter chamber 11. A partition 12 is installed between the adsorption chamber 10 and the filter chamber 11. An exhaust port 13 is respectively set at the top of the adsorption chamber 10 and the filter chamber 11. The bottom of the adsorption chamber 10 and the filter chamber 11 are connected to the ventilation port 14.

[0023] In actual operation, chromium powder is first added to the addition chamber 1 through the feed inlet 2. At this time, the screw conveyor motor 4 is started, which drives the screw conveyor shaft 5 to rotate. The dispersing head 6 on the screw conveyor shaft 5 rotates accordingly. The function of the dispersing head 6 is to initially disperse the chromium powder entering the addition chamber 1, so as to avoid the accumulation of chromium powder and the formation of local high-concentration areas, thereby reducing the generation of dust. At the same time, the synchronous rotating shaft 7 on the screw conveyor shaft 5 also rotates with the screw conveyor shaft 5. The two sets of adsorption brackets 8 installed on the synchronous rotating shaft 7 move accordingly. The adsorption plate 9 on the adsorption bracket 8 contacts the inner wall of the addition chamber 1. Limiting rings 20 are installed at the upper and lower ends of the adsorption plate 9. Protective pads 21 are installed on the limiting rings 20 near the bottom of the adsorption plate 9. The protective pads 21 can effectively prevent hard friction between the adsorption plate 9 and the inner wall of the addition chamber 1. At the same time, it ensures that the adsorption plate 9 remains stable during the movement. The function of the adsorption plate 9 is to adsorb chromium powder particles near the inner wall of the addition chamber 1 to further reduce the spread of dust.

[0024] An adjustment section 15 is set in the center of the spiral conveyor shaft 5 in the closed conveying mechanism. An elastic support 16 is installed inside the adjustment section 15. The design of the elastic support 16 enables the spiral conveyor shaft 5 to automatically adjust its rigidity and stability according to the density change of chromium powder inside the addition chamber 1 during operation, thereby ensuring the smoothness of the entire conveying process. In addition, the adsorption bracket 8 is installed parallel to the inner wall of the addition chamber 1, and two sets of adsorption plates 9 are installed symmetrically with the spiral conveyor shaft 5 as the central axis. The adsorption plates 9 are in contact with the inner wall of the addition chamber 1. This design can ensure that the adsorption plates 9 can fully cover all areas near the inner wall of the addition chamber 1, thereby achieving effective control of dust.

[0025] Both the adsorption chamber 10 and the filter chamber 11 in the negative pressure adsorption mechanism are equipped with electrically controlled valves 17 at their bottoms. Adsorption plates 18 and filter plates 19 are respectively installed on the electrically controlled valves 17. When the device is running, the negative pressure fan starts and sequentially draws and filters the air in the adsorption chamber 10. After the air enters the adsorption chamber 10 through the vent 14, it passes through the partition 12 and enters the filter chamber 11, and finally exits from the exhaust port 13. In this process, the adsorption chamber 10 is mainly responsible for the initial adsorption of larger chromium powder particles in the air, while the filter chamber 11 further filters the fine particles, thereby ensuring that the discharged air does not contain chromium powder particles. The design of the electrically controlled valves 17 allows the adsorption plates 18 and filter plates 19 to be opened or closed as needed, thereby facilitating the cleaning and maintenance of the adsorption chamber 10 and the filter chamber 11.

[0026] In practical applications, when chromium powder enters the addition chamber 1 through the feed inlet 2, the screw conveyor shaft 5 and the dispersing head 6 initially disperse and transport it. The adsorption plate 9 adsorbs the chromium powder particles near the inner wall of the addition chamber 1, and the negative pressure adsorption mechanism extracts and filters the air in the addition chamber 1, thereby achieving comprehensive dust control. In addition, since the bottom of the adsorption chamber 10 and the filter chamber 11 are equipped with electrically controlled valves 17, the operator can periodically open the electrically controlled valves 17 to clean the adsorption chamber 10 and the filter chamber 11, thereby ensuring the long-term stable operation of the device.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dust-preventing chromium powder adding device, characterized in that: The device includes an addition chamber, with a feed inlet at the top and a discharge outlet at the bottom. A screw conveyor motor is installed through the feed inlet, and the screw conveyor motor is connected to a sealed conveying mechanism. The sealed conveying mechanism extends through the top of the addition chamber and into its interior. Negative pressure adsorption mechanisms are respectively provided on both sides of the addition chamber, and a ventilation opening is provided between the negative pressure adsorption mechanism and the addition chamber. The sealed conveying mechanism includes a spiral conveying shaft, a dispersing head installed at the bottom of the spiral conveying shaft, a synchronous rotating shaft sleeved on the spiral conveying shaft, two sets of adsorption brackets installed on the synchronous rotating shaft, and adsorption plates sleeved on the adsorption brackets; The negative pressure adsorption mechanism includes an adsorption chamber and a filtration chamber. A partition is installed between the adsorption chamber and the filtration chamber. An exhaust port is provided at the top of the adsorption chamber and the filtration chamber respectively. The bottom of the adsorption chamber and the filtration chamber are connected to the ventilation port.

2. The dust-preventing chromium powder adding device according to claim 1, characterized in that: An adjustment section is provided in the center of the spiral conveyor shaft, and an elastic support is installed inside the adjustment section.

3. The dust-preventing chromium powder adding device according to claim 2, characterized in that: Both the adsorption chamber and the filter chamber are equipped with electrically controlled valves at their bottoms, and adsorption plates and filter plates are respectively installed on the adsorption chamber and the filter chamber.

4. The dust-preventing chromium powder adding device according to claim 3, characterized in that: The two sets of adsorption supports are installed parallel to the inner wall of the addition chamber, and the two sets of adsorption plates are installed symmetrically with the spiral conveyor shaft as the central axis, with the adsorption plates in contact with the inner wall of the addition chamber.

5. The dust-preventing chromium powder adding device according to claim 4, characterized in that: Limiting rings are installed at both the upper and lower ends of the adsorption plate, and a protective pad is installed on the limiting ring near the bottom end of the adsorption plate.

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