A pseudo-boehmite production plant dust collecting device

Abstract

The utility model belongs to the production equipment field of pseudo-boehmite, especially relates to a pseudo-boehmite production workshop dust collecting device. Including dryer and auger elevator, be provided with feed inlet on the dryer, still have dust cover on the auger elevator, dust cover is close to the feed inlet setting, the top of dust cover is provided with dust collecting pipe, the one end that dust collecting pipe is away from dust cover is provided with collection box, the top of collection box is provided with sealing board, sealing board detachable setting is at the top of collection box, be provided with supporting plate in collection box, dust collecting pipe is set through supporting plate, the one end that dust collecting pipe is set through supporting plate is provided with flange, supporting plate still is provided with the slot, the utility model discloses through the setting of dust cover, effectively avoided the four overflow of dry powder, simultaneously, through the setting of dust collecting bag, realized the collection to dry powder, avoided the waste.

Description

Technical Field

[0001] This utility model belongs to the field of boehmite production equipment, and in particular relates to a dust collection device for boehmite production workshops. Background Technology

[0002] Boehmite is an amorphous or weakly crystalline structure, exhibiting a wrinkled, lamellae morphology. Compared to fully crystalline boehmite, it has lower crystallinity and smaller grain size (typically less than 10 nm). Its crystal structure contains a large amount of interlayer water and surface-adsorbed water, giving it thixotropic gel properties. Due to its high specific surface area, controllable pore volume (0.4~1.0 mL / g), excellent colloidal solubility, thermal stability, and weakly crystalline structure, boehmite has irreplaceable applications in petrochemicals, environmental protection, new energy, high-end materials, and biomedicine.

[0003] In the existing process of drying boehmite, the filter cake is mainly conveyed to the dryer by an auger elevator. Due to the drop difference of the filter cake (usually 0.5-1.5m), the impact airflow will cause a small amount of dry powder to be stirred up (residual inside the dryer). In addition, the auger elevator is inclined to convey material upward, which means that the feed inlet of the dryer is larger than the pipe diameter of the auger elevator. This causes a small amount of dry powder to overflow. Over time, this accumulates and leads to a poor workshop environment. Utility Model Content

[0004] This invention addresses the problem of overflow during the feeding stage of boehmite drying, proposing a dust collection device for boehmite production workshops that is reasonably designed, simple in structure, easy to process, and can effectively prevent dust overflow from the feed inlet.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a dust collection device for a pseudo-boehmite production workshop, including a dryer and an auger elevator. The dryer is provided with a feed inlet, and the auger elevator is also covered with a dust collection hood. The dust collection hood is located near the feed inlet, and a dust collection pipe is provided on the top of the dust collection hood. A collection box is provided at the end of the dust collection pipe away from the dust collection hood. A sealing plate is provided on the top of the collection box, and the sealing plate is detachably installed on the top of the collection box. A support plate is provided inside the collection box, and the dust collection pipe passes through the support plate. A flange is provided at the end of the dust collection pipe that passes through the support plate. The support plate is also provided with slots, which are located on both sides of the flange. A connecting flange is inserted into the slot, and the connecting flanges are fitted together. A dust collection bag is provided at the end of the connecting flange away from the flange. An exhaust pipe is provided at the end of the collection box away from the dust collection pipe, and the exhaust pipe is connected to an exhaust fan.

[0006] Preferably, the dust collection hood is liftable and adjustable on the dryer.

[0007] Preferably, the dryer is equipped with a track, the dust collection hood is equipped with a connecting plate, the connecting plate is equipped with a slider that cooperates with the track, the dryer is equipped with a fixed pulley, and the dust collection hood is equipped with a lifting rope that passes through the fixed pulley.

[0008] Preferably, a handle is provided on the top of the connecting flange.

[0009] Preferably, the support plate is further provided with a support protrusion, which is configured to contact the bottom of the connecting flange.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model provides a dust collection device for a pseudo-boehmite production workshop. By setting up a dust collection hood, the dry powder is effectively prevented from overflowing. At the same time, by setting up a dust collection bag, the dry powder is collected, avoiding waste. Furthermore, this utility model has a simple structure, is easy to process, and can be improved on the basis of existing technology, making it suitable for large-scale promotion and use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the dust collection device for the boehmite production workshop provided in Example 1; Figure 2 This is a schematic diagram of the structure of the dust collection device for the boehmite production workshop provided in Example 1, which includes the upper part of the dryer, the collection box, and the exhaust pipe. Figure 3 Provided for Example 1 Figure 2 A schematic diagram of a partial structure; In the above figures, 1. Screw hoist; 2. Dryer; 21. Track; 22. Fixed pulley; 3. Dust collection hood; 31. Connecting plate; 32. Sliding block; 33. Pull rope; 4. Dust collection pipe; 41. Flange; 5. Collection box; 51. Sealing plate; 52. Support plate; 521. Slot; 522. Support protrusion; 6. Connecting flange; 61. Dust collection bag; 62. Handle; 7. Exhaust pipe. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Example 1, as Figures 1-3 As shown, this embodiment aims to solve the problem of dry material overflowing from the feed inlet of the dryer 2. To achieve the above objective, this embodiment provides a dust collection device for a boehmite production workshop, which includes a dryer 2 and an auger elevator 1. The dryer 2 is provided with a feed inlet, and the outlet end of the auger elevator 1 extends into the dryer 2 through the feed inlet. The above structure is a common existing structure, and therefore, it will not be described in detail in this embodiment.

[0016] To address the issue of dust overflow, it is necessary to collect the spilled dry powder. Ventilation collection is the best solution. Therefore, a dust collection hood 3 is installed on the auger elevator 1. In this embodiment, the dust collection hood 3 is box-shaped, with an opening on the side facing the dryer 2. It has notches on its bottom and the side facing the auger elevator 1 for the auger pipe to pass through. For dust collection, the dust collection hood 3 is positioned near the feed inlet. A dust collection pipe 4 is installed on the top of the dust collection hood 3, and a collection box 5 is installed at the end of the dust collection pipe 4 away from the dust collection hood 3. Since the dry powder is all boehmite, which has economic value, it needs to be collected. In this embodiment, the collection box 5 is rectangular, with an opening on its top. A sealing plate 51 is installed on the top of the collection box 5 to seal the opening and maintain a seal. The sealing plate 51 and the collection box 5 are detachably fixed using bolts or latches.

[0017] To achieve dust collection, a support plate 52 is installed inside the collection box 5, and the dust collection pipe 4 passes through the support plate 52. A flange 41 is installed at one end of the dust collection pipe 4 that passes through the support plate 52. The flange 41 is mainly designed to increase the contact surface and ensure a seal with the connecting flange. The support plate 52 also has an L-shaped slot 521, which is located on both sides of the flange 41. A connecting flange 6 is inserted into the slot 521, and the connecting flange 6 and the flange 41 are fitted together. In this embodiment, both the flange 41 and the connecting flange 6 are epoxy resin flanges 41. This utilizes the elasticity of the material to ensure a good seal. Of course, metal materials can also be used. Locking bolts are installed on the slot 521, and the fixing is achieved by tightening. This configuration depends on the amount of dust collected. If it takes several days or ten days to fill a bag, a locking method can be used.

[0018] A dust collection bag 61 is installed at the end of the connecting flange 6 furthest from the flange 41. The dust collection bag 61 is a cotton bag, which must be breathable; therefore, a sealed bag structure cannot be used. An exhaust pipe 7 is installed at the end of the collection box 5 furthest from the dust collection pipe 4, and the exhaust pipe 7 is connected to an exhaust fan (not shown in the figure). In this embodiment, the exhaust fan is a Roots blower. In this way, the overflowing dry powder is collected into the dust collection bag 61 by the suction of the Roots blower. After the bag is full, the connecting flange 6 is pulled out, the dry powder is poured out, and then it can be plugged back in.

[0019] Considering that the auger elevator 1 conveys wet material, it requires regular cleaning and maintenance (the pseudo-boehmite is an inorganic material and will not mold; it is only for cleanliness). Therefore, the dust collection hood 3 is height-adjustable and mounted on the dryer 2. Specifically, the dryer 2 has a track 21 located on both sides of the feed inlet. A connecting plate 31 is installed inside the dust collection hood 3, and a slider 32 that cooperates with the track 21 is mounted on the connecting plate 31. The connecting plate 31, positioned inside the dust collection hood 3, ensures that the side panels of the dust collection hood 3 fit more snugly against the dryer 2, reducing air leakage. Simultaneously, the dryer 2 has a fixed pulley 22, and the dust collection hood 3 has a lifting rope 33, which passes through the fixed pulley 22. During regular cleaning, the other end of the lifting rope 33 can be tied to an unobstructed location. During normal use, it does not need to be tied; it can simply be hung vertically. Of course, the dust collection pipe 4 of the telescopic section is a telescopic pipe.

[0020] To facilitate the pulling and pulling of the connecting flange 6, a handle 62 is provided on the top of the connecting flange 6. To ensure accurate insertion, a support protrusion 522 is also provided on the support plate 52, and the support protrusion 522 is positioned to contact the bottom of the connecting flange 6. Of course, it can also be observed, but the provision of the support protrusion 522 is more convenient and can also be used in conjunction with the structure of the locking bolts.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dust collection device for a boehmite production workshop, comprising a dryer and a screw conveyor, wherein the dryer is provided with a feed inlet, characterized in that, The auger elevator is also covered with a dust collection hood, which is located near the feed inlet. A dust collection pipe is installed on the top of the dust collection hood, and a collection box is installed at the end of the dust collection pipe away from the dust collection hood. A sealing plate is installed on the top of the collection box, and the sealing plate is detachably installed on the top of the collection box. A support plate is installed inside the collection box, and the dust collection pipe passes through the support plate. A flange is installed at the end of the dust collection pipe that passes through the support plate. The support plate is also provided with slots, which are located on both sides of the flange. Connecting flanges are inserted into the slots, and the connecting flanges are fitted together. A dust collection bag is installed at the end of the connecting flange away from the flange. An exhaust pipe is installed at the end of the collection box away from the dust collection pipe, and the exhaust pipe is connected to an exhaust fan.

2. The dust collection device for a boehmite production workshop according to claim 1, characterized in that, The dust collection hood can be raised and lowered on the dryer.

3. A dust collection device for a boehmite production workshop according to claim 2, characterized in that, The dryer is equipped with a track, the dust collection hood is equipped with a connecting plate, the connecting plate is equipped with a slider that cooperates with the track, the dryer is equipped with a fixed pulley, and the dust collection hood is equipped with a lifting rope that passes through the fixed pulley.

4. A dust collection device for a boehmite production workshop according to claim 3, characterized in that, A handle is provided on the top of the connecting flange.

5. A dust collection device for a boehmite production workshop according to claim 4, characterized in that, The support plate is also provided with a support protrusion, which is in contact with the bottom of the connecting flange.

Images