Dust removal device for nano calcium carbonate production
By using an electric dust trap mechanism and ash cleaning device combined with acrylate film dust removal technology in the nano calcium carbonate production process, the problems of low efficiency and high cost of existing equipment are solved, efficient dust removal and equipment life are achieved, and the equipment life is extended, which is reduced. Production cost.
Patent Information
- Application Number
- CN202420287499.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-07
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-02-07
AI Technical Summary
In the production process of nano calcium carbonate, existing dust removal equipment is low efficiency and high cost, and the equipment is complex to use, making it difficult to effectively remove fine dust, affecting the environment and health. The equipment has poor dust removal effect after large-scale transformation, affecting the equipment life.
A dust removal device including an electric dust trap mechanism, ash cleaning device and a glue injection mechanism is designed. Nano calcium carbonate dust is captured through the electric dust trap mechanism, and a dust cleaning device and a glue injection mechanism are arranged below the electric dust trap mechanism, and the dust cleaning device and a glue injection mechanism are used. Acrylate film captures and removes dust, extends the life of the equipment, and adapts to different purification requirements through flexible adjustment of the glue injection mechanism.
Improve dust removal efficiency, reduce production costs and equipment use complexity, extend equipment service life, and reduce production costs by reusing acrylate glue.
Smart Images
Figure CN222343127U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of dust removal, and in particular relates to a dust removal device used for the production of nano calcium carbonate. Background Art
[0002] Nano calcium carbonate, with a particle size between 1 and 100 nm, includes ultrafine calcium carbonate (particle size 20-100 nm) and ultrafine calcium carbonate (particle size 1-20 nm). Compared with ordinary calcium carbonate, nano calcium carbonate has obvious advantages in reinforcement, dispersibility, heat resistance and dimensional stability, and is one of the most widely used nano filler materials. Common application areas include plastics, rubber, ink, adhesives, papermaking, coatings, etc. During the grinding and drying process of nano calcium carbonate, a large amount of fine calcium carbonate dust will be generated and diffused into the air, which will not only cause environmental pollution, but also affect people's health, and will also cause a large amount of waste of high value-added nano calcium carbonate resources.
[0003] Since the calcium carbonate dust particles produced by nano-calcium carbonate are small in size and have weak electrical adsorption, this puts forward more stringent requirements and restrictions on the performance of dust removal equipment. At present, more than 95% of the large and medium-sized electrostatic precipitators in actual use are plate-type (wire plate electric field), and very few are tube-type. In addition, most electrostatic precipitators use mechanical vibration cleaning, and the mechanical vibration generated by vibration cleaning will significantly shorten the effective operation time of the motor. In addition, with the large-scale electrostatic precipitator equipment, the vibration cleaning method is difficult to operate effectively. When the plate dust reaches a certain layer thickness, it will greatly affect the discharge performance of the plate and reduce the dust collection efficiency of the dust collector. Wet cleaning consumes a lot of water, high energy consumption, and poor adaptability to extremely harsh environments. Although the movable electrode electrostatic precipitator can make up for the shortcomings of the poor cleaning effect of the electrostatic precipitator, it has high requirements for equipment design, manufacturing, and installation processes, increases the probability of failure, and reduces the effective working time. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a dust removal device for the production of nano calcium carbonate, thereby improving the dust removal efficiency and reducing the production cost and the complexity of the equipment use.
[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a dust removal device for the production of nano-calcium carbonate, comprising a shell, a flue, an electric dust collection mechanism, a dust cleaning device and a glue injection mechanism, the flue being arranged on the side of the shell and connected to the inside of the shell, at least one group of continuously rotating electric dust collection mechanisms being arranged inside the shell through which the flue gas flows, the cleaning device being connected below the electric dust collection mechanism, a glue injection mechanism being further arranged on the upper part of the shell, the glue injection mechanism being connected to one side of the electric dust collection mechanism, dust removal glue being injected into the glue injection mechanism, and the glue spraying direction of the glue injection mechanism being perpendicular to the moving direction of the electric dust collection mechanism.
[0006] Preferably, the smoke duct comprises a smoke inlet duct and a smoke exhaust duct, the smoke inlet duct is arranged at the lower part of the shell, the smoke exhaust duct is arranged at the upper part of the shell, and the smoke inlet duct is arranged below the smoke exhaust duct.
[0007] Preferably, the electric dust collection mechanism includes an anode plate and a dust collection rubber belt, a transmission roller is provided at each upper and lower end of the anode plate, the dust collection rubber belt is arranged on the outside of the anode plate and is wound around two transmission rollers, and the electric dust collection mechanism is arranged in the direction of flue gas flow.
[0008] Preferably, the dust cleaning device comprises a dust cleaning brush and a dust collecting hopper. The dust cleaning brush is rotatably arranged and has bristles on the outside. The bristles are in contact with the lower part of the electric dust collecting mechanism. The dust collecting hopper is arranged below the dust cleaning brush.
[0009] Preferably, the ash receiving hopper is funnel-shaped and has an ash discharge valve at the bottom.
[0010] Preferably, the cleaning brush rotates in the opposite direction to the electric dust collecting mechanism.
[0011] Preferably, the glue injection mechanism comprises a glue injection port and a glue injection nozzle, the glue injection port is arranged at the upper part of the shell, a glue injection channel is arranged at the glue injection port, one end of the glue injection channel is connected to the glue injection port, and the other end is connected to the glue injection nozzle.
[0012] Preferably, the glue injection nozzle is arranged on one side of the electric dust collection mechanism, and the glue spraying direction of the glue injection nozzle is perpendicular to the moving direction of the electric dust collection mechanism, and the glue injection nozzle is connected to the glue injection port.
[0013] Preferably, the dust removal glue is acrylic glue.
[0014] Compared with the prior art, the above technical solution has the following beneficial effects:
[0015] The utility model discloses a dust removal device for the production of nano-calcium carbonate. The dust removal device adopts an electric dust collection mechanism to effectively capture fine calcium carbonate dust, thereby improving the flue gas purification effect. The dust cleaning device connected below the electric dust collection mechanism can remove dust in time, ensuring a thorough dust cleaning effect, and can also effectively extend the service life of the equipment. In addition, the acrylic film sprayed on the electric dust collection mechanism can be reused after reprocessing, thereby reducing production costs. The position of the glue injection mechanism can be adjusted to meet different flue gas purification requirements, providing greater flexibility for the design. Through this dust removal device, the dust removal efficiency is improved, and the production cost and the complexity of equipment use are also reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the dust removal device for producing nano calcium carbonate of the utility model.
[0017] Figure 2 A side view of a single anode plate.
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0019] Figure 4 It is a schematic diagram of dust collection of the utility model.
[0020] Among them: 1. Shell; 2. Smoke inlet; 3. Baffle; 4. Smoke exhaust duct; 5. Glue injection port; 6. Glue injection nozzle; 7. Anode plate; 8. Cleaning brush; 9. Ash hopper; 10. Ash discharge valve; 11. Dust-catching rubber belt; 12. Transmission roller. DETAILED DESCRIPTION
[0021] Figures 1 to 4 It is the best embodiment of the utility model, and the following Figures 1 to 4 The utility model is further described.
[0022] like Figure 1~2 As shown, the utility model is a dust removal device for the production of nano calcium carbonate, characterized in that it includes a shell 1, a flue, an electric dust collection mechanism, a dust cleaning device and a glue injection mechanism. The flue is arranged on the side of the shell 1 and is connected to the inside of the shell 1. The flue includes a smoke inlet 2 and a smoke exhaust 4. The smoke inlet 2 is arranged at the lower part of the shell 1, the smoke exhaust 4 is arranged at the upper part of the shell 1, and the smoke inlet 2 is arranged below the smoke exhaust 4. At least one group of continuously rotating electric dust collection mechanisms is arranged inside the shell 1 through which the flue gas flows. The dust cleaning device is connected below the electric dust collection mechanism. A glue injection mechanism is also arranged at the upper part of the shell 1. The glue injection mechanism is connected to one side of the electric dust collection mechanism. Dust removal glue is injected into the glue injection mechanism. The glue spraying direction of the glue injection mechanism is perpendicular to the moving direction of the electric dust collection mechanism. In this embodiment, the dust removal glue is acrylic glue.
[0023] In this embodiment, a baffle plate 3 is further provided between the smoke inlet duct 2 and the smoke exhaust duct 4. The baffle plate 3 is used to prevent the smoke that has not been dust-removed from being directly discharged, thereby ensuring the effective operation of the dust removal device.
[0024] In this embodiment, a plurality of electric dust collecting mechanisms are arranged in parallel in the horizontal direction. The electric dust collecting mechanism includes an anode plate 7 and a dust collecting rubber belt 11. A driving roller 12 is provided at each of the upper and lower ends of the anode plate 7. The dust collecting rubber belt 11 is provided on the outer side of the anode plate 7 and is wound around the two driving rollers 12. The electric dust collecting mechanism is provided in the direction in which the flue gas flows. The dust collecting rubber belt 11 has good electrical conductivity. When the motor drives the driving roller 12 to rotate, the dust collecting rubber belt 11 rotates with the driving roller 12. A dust cleaning device is connected below the electric dust collecting mechanism. The dust cleaning device includes a dust cleaning brush 8 and a dust collecting hopper 9. The dust cleaning brush 8 is arranged to rotate. The direction of rotation of the dust cleaning brush is opposite to the direction of rotation of the dust collecting rubber belt 11 of the electric dust collecting mechanism. The outside of the dust cleaning brush 8 is provided with bristles, which are in contact with the dust collecting rubber belt 11 and are used to clean the dust adsorbed on the dust collecting rubber belt 11. A dust collecting hopper 9 is provided below the dust cleaning brush 8 to collect, store and facilitate subsequent dust treatment. The ash receiving hopper 9 is funnel-shaped, so that the dust can flow to the bottom of the ash receiving hopper 9 more easily. An ash discharge valve 10 is provided at the bottom of the ash receiving hopper 9 to facilitate the discharge of the dust.
[0025] Combination Figure 3 , 4 The glue injection mechanism includes a glue injection port 5 and a glue injection nozzle 6. The glue injection port 5 is arranged on the upper part of the shell 1. A glue injection channel is provided at the glue injection port 5. One end of the glue injection channel is connected to the glue injection port 5, and the other end is connected to the glue injection nozzle 6. The glue injection nozzle 6 is arranged on one side of the dust catching rubber belt 11 of the electric dust catching mechanism, and the glue spraying direction of the glue injection nozzle 6 is perpendicular to the moving direction of the dust catching rubber belt 11, so as to facilitate the spraying of acrylic glue on the dust catching rubber belt 11 to form an acrylic glue film to adhere to the dust.
[0026] The working process of this utility model:
[0027] First, the flue gas enters the housing 1 from the flue gas inlet 2, and then flows through the electric dust collecting mechanism. The acrylic glue is injected into the glue injection port 5, and the acrylic glue flows through the glue injection channel to the glue injection nozzle 6. The motor drives the driving roller 12 to rotate, and the dust collecting rubber belt 11 rotates with the driving roller 12. The glue injection nozzle 6 sprays a layer of acrylic glue on the dust collecting rubber belt 11, and a layer of acrylic glue film is formed on the dust collecting rubber belt 11, and a dust collecting area is formed between multiple electric dust collecting mechanisms.
[0028] During operation, the positive and negative high-voltage power supply corona electrodes are used to discharge in the dust collecting area to generate a corona electric field. Since the dust collecting rubber belt 11 is conductive, the dust collecting rubber belt 11 will carry the same charge as the corona electric field. When the flue gas passes under the electric dust collecting mechanism, the nano calcium carbonate dust will carry a charge opposite to the anode plate 7, and then pass through the electric dust collecting mechanism with the airflow. The electron layers of the nano calcium carbonate dust and the dust collecting rubber belt 11 attract each other, and the nano calcium carbonate dust gathers in the direction of the dust collecting rubber belt 11. The nano calcium carbonate dust collides with the molecules of the acrylic film and is finally adhered to the acrylic film. When the dust adhered to the acrylic film reaches saturation, the dust collecting rubber belt 11 moves to the ash receiving hopper 9, and tannin or banana water and a cleaning brush 8 are used to remove the nano calcium carbonate dust and acrylic glue captured on the dust collecting rubber belt 11. After that, continue to spray the acrylic glue and continuously remove dust. The recovered acrylic glue can be reused after repolymerization and esterification.
[0029] The utility model improves the flue gas purification effect by using an electric dust collection mechanism to capture nano calcium carbonate dust. The connected dust removal device can remove the nano calcium carbonate dust in time and extend the life of the equipment. The sprayed acrylic film on the electric dust collection mechanism can be reused to reduce production costs. The glue injection mechanism can adjust the position to adapt to different purification requirements, providing flexibility.
[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.
Claims
1. A dust removal device for the production of nano calcium carbonate, characterized in that: The invention comprises a shell (1), a flue, an electric dust collecting mechanism, a dust cleaning device and a glue injection mechanism, wherein the flue is arranged at the side of the shell (1) and is communicated with the inside of the shell (1), at least one group of continuously rotating electric dust collecting mechanisms is arranged inside the shell (1) through which the flue gas flows, the bottom of the electric dust collecting mechanism is connected to the dust cleaning device, and the upper part of the shell (1) is also provided with a glue injection mechanism, which is connected to one side of the electric dust collecting mechanism, and dust removal glue is injected into the glue injection mechanism, and the glue injection direction of the glue injection mechanism is perpendicular to the moving direction of the electric dust collecting mechanism.
2. A dust removal device for nano calcium carbonate production according to claim 1, characterized in that: The smoke duct comprises a smoke inlet duct (2) and a smoke exhaust duct (4); the smoke inlet duct (2) is arranged at the lower part of the outer shell (1); the smoke exhaust duct (4) is arranged at the upper part of the outer shell (1); and the smoke inlet duct (2) is arranged below the smoke exhaust duct (4).
3. A dust removal device for nano calcium carbonate production according to claim 1, characterized in that: The electric dust collecting mechanism comprises an anode plate (7) and a dust collecting rubber belt (11), wherein a driving roller (12) is provided at each of the upper and lower ends of the anode plate (7), the dust collecting rubber belt (11) is arranged outside the anode plate (7) and is wound around two driving rollers (12), and the electric dust collecting mechanism is arranged in the direction in which the flue gas flows.
4. A dust removal device for the production of nano calcium carbonate according to claim 1, characterized in that: The dust cleaning device comprises a dust cleaning brush (8) and a dust collecting hopper (9); the dust cleaning brush (8) is rotatably arranged and has bristles on the outside, the bristles are in contact with the lower part of the electric dust collecting mechanism; and the dust collecting hopper (9) is arranged below the dust cleaning brush (8).
5. A dust removal device for the production of nano calcium carbonate according to claim 4, characterized in that: The ash receiving hopper (9) is funnel-shaped and has an ash discharge valve (10) at the bottom.
6. A dust removal device for the production of nano calcium carbonate according to claim 4, characterized in that: The direction of rotation of the cleaning brush (8) is opposite to that of the electric dust collecting mechanism.
7. A dust removal device for nano calcium carbonate production according to claim 1, characterized in that: The glue injection mechanism comprises a glue injection port (5) and a glue injection nozzle (6); the glue injection port (5) is arranged on the upper part of the housing (1); a glue injection channel is provided at the glue injection port (5); one end of the glue injection channel is connected to the glue injection port (5) and the other end is connected to the glue injection nozzle (6).
8. A dust removal device for the production of nano calcium carbonate according to claim 7, characterized in that: The glue injection nozzle (6) is arranged on one side of the electric dust collection mechanism, and the glue injection nozzle (6) sprays glue in a direction perpendicular to the moving direction of the electric dust collection mechanism. The glue injection nozzle (6) is connected to the glue injection port (5).
9. A dust removal device for the production of nano calcium carbonate according to claim 1, characterized in that: The dust removal glue is acrylic glue.