Environment-friendly catalyst screening device for sulfuric acid production
By employing an environmentally friendly catalyst screening device with multi-layer filters and cleaning components in sulfuric acid production, the problems of dust and screen clogging are solved, achieving efficient screening and environmental protection.
Patent Information
- Application Number
- CN202422599693.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-10-28
AI Technical Summary
In existing sulfuric acid production processes, the catalyst screening device cannot effectively control dust during screening, leading to environmental pollution and easy clogging of the screen, which affects the screening effect.
An environmentally friendly catalyst screening device is adopted, including multi-layer filter screens and a vibrating motor, combined with a dust pump and cleaning components, to achieve multi-stage screening and dust collection, prevent dust from flying, and avoid screen clogging through the cleaning components.
It effectively suppresses dust, improves screening efficiency, reduces environmental pollution and health risks, and ensures the long-term operational stability of the screening device.
Smart Images
Figure CN223440369U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flow monitoring technical field, concretely is a kind of environmental protection type catalyst screening device for sulfuric acid production. BACKGROUND
[0002] In the production process of sulfuric acid, the screening of catalyst is a key step, which is used to separate catalysts of different particle sizes to ensure reaction efficiency. Dust is inevitably generated during the screening process, causing dust pollution.
[0003] The existing screening device usually uses a vibrating screen or a rotary screen for screening. However, it cannot effectively control dust flying during the screening process, resulting in a poor working environment and failing to meet environmental protection requirements. Moreover, the screen mesh is easily blocked, affecting the screening effect.
[0004] Therefore, an environmental protection type catalyst screening device for sulfuric acid production is proposed. UTILITY MODEL CONTENT
[0005] The utility model aims to provide an environmental protection type catalyst screening device for sulfuric acid production.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] An environmental protection type catalyst screening device for sulfuric acid production includes a screening box, an upper hopper is connected to the top end of the screening box, an environmental protection screening assembly is arranged in the screening box, the environmental protection screening assembly includes a first filter screen and a second filter screen which are uniformly fixed and installed in the screening box, the second filter screen is below the first filter screen, and the filtering diameter of the second filter screen is smaller than that of the first filter screen, a first lower hopper is connected to the bottom end of the screening box, a second lower hopper and a third lower hopper are also connected to the side wall of the screening box, a dust suction pump is connected to the side wall of the first lower hopper, and a vibration motor is fixed and installed on the side wall of the screening box.
[0008] Preferably, the bottom end of each of the first lower hopper, the second lower hopper, and the third lower hopper is connected to a discharge pipe.
[0009] Preferably, the first filter screen and the second filter screen are both inclined, the second lower hopper is at the bottom end of the first filter screen, and the third lower hopper is at the bottom end of the second filter screen.
[0010] Preferably, a maintenance door is rotatably installed on the side wall of the screening box, and an observation window is arranged on the maintenance door.
[0011] Preferably, a cleaning assembly is further arranged on the side wall of the screening box, the cleaning assembly comprises a cleaning frame arranged at the bottom end of the first filter screen and the second filter screen, a plurality of nozzles are uniformly communicated with the top end of the cleaning frame, an air pump is fixedly installed on the side wall of the screening box, two telescopic pipes are communicated with the air outlet of the air pump, the other ends of the two telescopic pipes are communicated with the cleaning frame, two threaded rods are rotatably installed on the side wall of the screening box, a movable ring matched with the threaded rods is fixedly installed on the bottom wall of the top end of the cleaning frame, a limiting rod is further fixedly installed at the bottom end of the screening box, and a limiting ring matched with the limiting rod is fixedly installed on the bottom wall of the bottom end of the cleaning frame.
[0012] Preferably, one end of the two threaded rods extends to the outside of the screening box and is fixedly connected with a first pulley and a second pulley respectively, a transmission belt is commonly sleeved on the first pulley and the second pulley, and a driving motor is further fixedly installed on the side wall of the screening box, and the output end of the driving motor is fixedly connected with the central shaft of the first pulley.
[0013] Preferably, the cleaning frame is arranged in an inclined manner, and the sliding direction of the cleaning frame is perpendicular to the falling direction of the first filter screen and the second filter screen.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] 1. By arranging the environment-friendly screening assembly, the catalyst entering the screening box can be screened after the vibration motor works, and the screening efficiency is improved by realizing layer-by-layer screening of multiple particle sizes at the same time after layer-by-layer filtering through the first filter screen and the second filter screen. In addition, when screening, the dust suction pump can drive the airflow in the screening box to flow from top to bottom, so that the dust in the screening box can be sucked out and collected, the dust flying during the screening process can be effectively inhibited, and the influence of dust on the production environment and the health of workers can be reduced.
[0016] 2. By arranging the cleaning assembly, the driving motor can drive the two threaded rods to rotate in the same direction through the first pulley, the second pulley and the transmission belt. At this time, the cleaning frame can slide along the outside of the limiting rod through the movable ring matched with the threaded rods, so that the nozzles at the top end of the cleaning frame can slide at the bottom end of the first filter screen and the second filter screen. By controlling the rotating direction of the driving motor, the sliding direction of the cleaning frame can be controlled. In combination with the air pump and the telescopic pipes, the nozzles can uniformly spray air on the first filter screen and the second filter screen in the reverse direction, so that the first filter screen and the second filter screen can be prevented from being blocked due to long-time work, and the screening efficiency can be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of one side of the screening box in the embodiment of the present application.
[0018] Figure 2 It is the side view cross section structure schematic diagram of the screening box in the embodiment of the utility model;
[0019] Figure 3 It is the whole structure schematic diagram of the other side of the screening box in the embodiment of the utility model;
[0020] Figure 4 It is the structure schematic diagram of the motor output end in the embodiment of the utility model.
[0021] In the drawing: 1, screening box;2, feeding hopper;3, drive motor;4, vibration motor;5, air pump;6, first discharge hopper;7, dust suction pump;8, second discharge hopper;9, third discharge hopper;10, first filter screen;11, second filter screen;12, threaded screw;13, cleaning frame;14, discharge pipe;15, limiting rod;16, access door;17, observation window;18, first pulley;19, transmission belt;20, second pulley;21, movable ring;22, telescopic guide pipe;23, limiting ring;24, spray head. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0023] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in conjunction with the drawings of the specification and specific embodiments.
[0024] Embodiment 1:
[0025] Please refer to Figures 1 to 3 A screening device for catalyst screening in sulfuric acid production, comprising: a screening box 1, a feeding hopper 2 is communicatively arranged at the top end of the screening box 1, an environmental protection screening assembly is arranged in the screening box 1, the environmental protection screening assembly comprises a first filter screen 10 and a second filter screen 11 which are uniformly and fixedly installed in the screening box 1, the second filter screen 11 is located below the first filter screen 10, and the filtering diameter of the second filter screen 11 is smaller than that of the first filter screen 10, a first discharge hopper 6 is communicatively arranged at the bottom end of the screening box 1, a second discharge hopper 8 and a third discharge hopper 9 are also communicatively arranged on the side wall of the screening box 1, a dust suction pump 7 is communicatively arranged on the side wall of the first discharge hopper 6, and a vibration motor 4 is fixedly installed on the side wall of the screening box 1.
[0026] Please refer to Figure 2The bottom end of the first, second and third hoppers 6, 8 and 9 is communicated with a discharging pipe 14.
[0027] Please refer to Figure 2 The first and second filter screens 10 and 11 are both inclined, the second hopper 8 is located at the bottom end of the first filter screen 10, and the third hopper 9 is located at the bottom end of the second filter screen 11.
[0028] Please refer to Figure 3 A maintenance door 16 is rotatably installed on the side wall of the screening box 1, and an observation window 17 is arranged on the maintenance door 16.
[0029] In this embodiment, when in use, the vibration motor 4 works to screen the catalyst entering the screening box 1, and after being filtered by the first and second filter screens 10 and 11 layer by layer, the screening of multiple particle sizes can be realized at the same time, the screening efficiency is improved, and when the closed screening box 1 is screening, the airflow in the screening box 1 can be driven by the dust suction pump 7 to flow from top to bottom, the dust in the screening box 1 can be sucked out and collected, the dust flying in the screening process can be effectively inhibited, and the influence of the dust on the production environment and the health of workers can be reduced.
[0030] Embodiment 2
[0031] Please refer to Figures 1 to 4 The environmental catalyst screening device for sulfuric acid production further comprises a cleaning assembly arranged on the side wall of the screening box 1, the cleaning assembly comprises a cleaning frame 13 arranged at the bottom end of the first and second filter screens 10 and 11, a plurality of nozzles 24 are uniformly arranged on the top end of the cleaning frame 13, a gas pump 5 is fixedly installed on the side wall of the screening box 1, two telescopic pipes 22 are arranged in communication with the gas outlet of the gas pump 5, the other ends of the two telescopic pipes 22 are in communication with the cleaning frame 13, two threaded lead screws 12 are rotatably installed on the side wall of the screening box 1, a movable ring 21 matched with the threaded lead screws 12 is fixedly installed on the bottom wall of the top end of the cleaning frame 13, a limiting rod 15 is further fixedly installed at the bottom end of the screening box 1, and a limiting ring 23 matched with the limiting rod 15 is fixedly installed on the bottom wall of the bottom end of the cleaning frame 13.
[0032] Please refer to Figure 4 One end of each of the two threaded lead screws 12 extends out of the screening box 1 and is fixedly connected with a first pulley 18 and a second pulley 20, respectively, a transmission belt 19 is jointly sleeved on the first and second pulleys 18 and 20, a driving motor 3 is further fixedly installed on the side wall of the screening box 1, and the output end of the driving motor 3 is fixedly connected with the central shaft of the first pulley 18.
[0033] Please refer to Figure 4The cleaning frame 13 is arranged obliquely, and the sliding direction of the cleaning frame 13 is perpendicular to the falling directions of the first filter screen 10 and the second filter screen 11.
[0034] In use, the driving motor 3 drives the two threaded rods 12 to rotate in the same direction through the first belt pulley 18, the second belt pulley 20 and the transmission belt 19, at this time, the cleaning frame 13 slides along the outside of the limiting rod 15 through the movable ring 21 and the threaded rod 12, so that the nozzle 24 at the top of the cleaning frame 13 slides at the bottom of the first filter screen 10 and the second filter screen 11, the sliding direction of the cleaning frame 13 is controlled by controlling the rotating direction of the driving motor 3, the nozzle 24 uniformly sprays air on the first filter screen 10 and the second filter screen 11 in the reverse direction through the air pump 5 and the telescopic conduit 22, the first filter screen 10 and the second filter screen 11 are prevented from being blocked due to long-time work, and the screening efficiency is ensured.
[0035] Working principle: first, the catalyst to be screened is put into the screening box 1 through the feeding hopper 2, the screening box 1 can be maintained through the maintenance door 16, and the screening condition can be observed through the observation window 17, the catalyst entering the screening box 1 is screened after the vibration motor 4 works, and the screening of multiple particle sizes is realized at the same time after layer-by-layer filtering through the first filter screen 10 and the second filter screen 11, the screening efficiency is improved, the airflow in the screening box 1 flows from top to bottom when the closed screening box 1 is screening, the dust in the screening box 1 is sucked out and collected, the dust flying in the screening process is effectively inhibited, the influence of dust on the production environment and the health of workers is reduced, the screened catalyst is collected along the bottom end of the first, second and third discharge pipes 14, in use, the driving motor 3 drives the two threaded rods 12 to rotate in the same direction through the first belt pulley 18, the second belt pulley 20 and the transmission belt 19, at this time, the cleaning frame 13 slides along the outside of the limiting rod 15 through the movable ring 21 and the threaded rod 12, so that the nozzle 24 at the top of the cleaning frame 13 slides at the bottom of the first filter screen 10 and the second filter screen 11, the sliding direction of the cleaning frame 13 is controlled by controlling the rotating direction of the driving motor 3, the nozzle 24 uniformly sprays air on the first filter screen 10 and the second filter screen 11 in the reverse direction through the air pump 5 and the telescopic conduit 22, the first filter screen 10 and the second filter screen 11 are prevented from being blocked due to long-time work, and the screening efficiency is ensured.
[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly catalyst screening device for sulfuric acid production, comprising: A screening box (1) is characterized in that: the top end of the screening box (1) is connected to an upper hopper (2), an environmentally friendly screening assembly is provided in the screening box (1), and the environmentally friendly screening assembly includes a first filter (10) and a second filter (11) uniformly fixedly installed in the screening box (1), the second filter (11) is located below the first filter (10), and the filtering diameter of the second filter (11) is smaller than the filtering diameter of the first filter (10), the bottom end of the screening box (1) is connected to a first lower hopper (6), the side wall of the screening box (1) is also connected to a second lower hopper (8) and a third lower hopper (9), the side wall of the first lower hopper (6) is connected to a dust suction pump (7), and a vibration motor (4) is fixedly installed on the side wall of the screening box (1).
2. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 1, characterized in that: The bottom ends of the first lower hopper (6), the second lower hopper (8) and the third lower hopper (9) are all connected and provided with a lowering pipe (14).
3. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 2, characterized in that: The first filter screen (10) and the second filter screen (11) are both arranged at an angle, the second lower hopper (8) is located at the bottom end of the first filter screen (10), and the third lower hopper (9) is located at the bottom end of the second filter screen (11).
4. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 3, characterized in that: An inspection door (16) is rotatably mounted on the side wall of the screening box (1), and an observation window (17) is provided on the inspection door (16).
5. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 1, characterized in that: The side wall of the screening box (1) is also provided with a cleaning assembly, which includes a cleaning frame (13) arranged at the bottom ends of the first filter screen (10) and the second filter screen (11), and a plurality of nozzles (24) are evenly connected to the top of the cleaning frame (13). An air pump (5) is fixedly installed on the side wall of the screening box (1), and the air outlet of the air pump (5) is connected to two telescopic pipes (22), and the other ends of the two telescopic pipes (22) are connected to the cleaning frame (13). Two threaded screw rods (12) are rotatably installed on the side wall of the screening box (1), and a movable ring (21) adapted to the threaded screw rods (12) is fixedly installed on the bottom wall of the top end of the cleaning frame (13). A limiting rod (15) is also fixedly installed on the bottom end of the screening box (1), and a limiting ring (23) adapted to the limiting rod (15) is fixedly installed on the bottom wall of the bottom end of the cleaning frame (13).
6. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 5, characterized in that: One end of the two threaded screw rods (12) extends to the outside of the screening box (1) and is fixedly connected to a first pulley (18) and a second pulley (20), respectively. A transmission belt (19) is commonly sleeved on the first pulley (18) and the second pulley (20). A drive motor (3) is also fixedly installed on the side wall of the screening box (1), and the output end of the drive motor (3) is fixedly connected to the central axis of the first pulley (18).
7. The environmentally friendly catalyst screening device for sulfuric acid production according to claim 6, characterized in that: The cleaning rack (13) is arranged at an angle, and the sliding direction of the cleaning rack (13) is perpendicular to the dropping direction of the first filter screen (10) and the second filter screen (11).