Novel cement preparation equipment
By designing negative pressure components and dust scraping components, the problems of dust diffusion and filter clogging during cement preparation were solved, achieving both dust removal efficiency and equipment stability.
Patent Information
- Application Number
- CN202423133670.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Dust generated during cement preparation affects air quality and worker health, and filters are prone to clogging, impacting ventilation performance.
The design incorporates a negative pressure component and a dust scraping component. The negative pressure component draws in dust through an air pump and a negative pressure hood, while the dust scraping component cleans the filter screen through a slip ring and a scraper, ensuring that dust is concentrated and the filter screen remains unobstructed.
It effectively prevents dust from spreading, ensures worker health, extends equipment maintenance cycles, and reduces maintenance costs.
Smart Images
Figure CN223542859U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement preparation technology, and in particular to a novel cement preparation device. Background Technology
[0002] Cement is a fine gray powder primarily used in the construction industry as a binder. When mixed with water, sand, and aggregates, it forms concrete. Cement hardens in both air and water, becoming a strong material widely used in construction, infrastructure, and other engineering projects. Its main raw materials include limestone, clay, and iron ore. These raw materials need to be crushed to facilitate subsequent grinding and mixing. Through continuous technological innovation and environmental protection measures, modern cement production has not only improved efficiency but also made significant progress in reducing its environmental impact.
[0003] In existing technologies, because the raw materials are relatively fine, a large amount of dust is inevitably generated during the cement preparation process. The spread of this dust in the air not only increases the difficulty of subsequent cleaning, but also seriously affects the air quality in the surrounding space of the mixing machine, thereby affecting the health of cement production workers. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of cement preparation equipment in order to solve the technical problems mentioned in the background art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A novel cement preparation device includes a shell, a mixing tank at the top of the shell, and multiple ventilation openings arranged in a ring array on the outer periphery of the shell, each ventilation opening being connected to a filter screen.
[0007] A mixing assembly includes a mixing tank, which is rotatably connected to the bottom of a mixing tank, and a track groove for reciprocating linear motion up and down is provided on the outer periphery of the mixing tank.
[0008] The slagging assembly includes a slip ring and scrapers. The slip ring is fitted around the circumferential side of the mixing tank. The inner wall of the slip ring is connected to balls that contact the track groove. The outer circumferential side of the slip ring is connected to scrapers equal in number to the filter screens. The side of the scraper away from the slip ring contacts the filter screens.
[0009] The negative pressure assembly includes an air pump and negative pressure hoods. The air pump is installed at the bottom of the housing. The air pump's intake port is connected to a number of negative pressure hoods equal to the number of ventilation openings via a connecting pipe. Multiple negative pressure hoods are installed one-to-one at the openings of the ventilation openings.
[0010] Furthermore, the track groove includes an inclined section and a rotary section, and two inclined sections and two rotary sections are provided. The two inclined sections are symmetrically arranged on both sides of the mixing tank with respect to the axis of the mixing tank. The two ends of the two inclined sections are connected by the rotary section, and the connection between the inclined section and the rotary section is smoothly transitioned.
[0011] Furthermore, the stirring assembly also includes a power unit and a stirring rod. The power unit mainly consists of a motor, a cover plate, a sun gear, planetary gears, and a gear ring. The motor is mounted on the top of the cover plate, and the output shaft of the motor passes through the cover plate and is fixedly connected to the sun gear. Multiple planetary gears mesh with the outer periphery of the sun gear. The planetary gears are connected to the cover plate through a planet carrier. The stirring rod is fixedly connected to the bottom of the sun gear, and a gear ring that meshes with the planetary gears is fixedly connected to the top of the stirring tank.
[0012] Furthermore, a support ring for supporting the cover plate is fixedly connected to the opening of the mixing tank, and a space for air intake is left between the bottom of the support ring and the top of the mixing tank.
[0013] Furthermore, the bottom of the shell is provided with a dust removal trough that communicates with the stirring tank, and the bottom of the dust removal trough is hinged with a baffle to prevent dust leakage.
[0014] Furthermore, a guide block is fixedly connected to the outer wall of the slip ring, and a guide groove connected to the guide block is vertically opened on the inner wall of the stirring tank.
[0015] In summary, this utility model has at least one of the following beneficial technical effects:
[0016] 1. This new type of cement preparation equipment, through the setting of a negative pressure component, can generate negative pressure in the mixing tank when the new cement preparation equipment is running, thereby sucking the cement raw material dust that is dispersed in the air due to mixing into the mixing tank, so as to avoid the dust being dispersed in the air and affecting the surrounding environment, and can effectively protect the health of workers.
[0017] 2. This new type of cement preparation equipment, through the set dust scraping component, can repeatedly scrape the filter screen during the operation of the mixing component, continuously cleaning the filter screen and avoiding filter screen blockage that would affect ventilation performance, thereby effectively ensuring that the new cement preparation equipment can stably remove dust during use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a novel cement preparation device according to the present invention.
[0020] Figure 2 This is a schematic diagram of the internal structure of a novel cement preparation device according to this utility model.
[0021] Figure 3 This is a schematic diagram of the left side of the shell structure in a novel cement preparation device according to this utility model.
[0022] Figure 4 This is a schematic diagram of the slagging component in a novel cement preparation device according to this utility model.
[0023] Figure 5 This is a schematic diagram of the internal structure of the mixing component in a novel cement preparation device according to this utility model.
[0024] Figure 6 This is a schematic diagram of the structure of the mixing tank in a novel cement preparation device according to this utility model.
[0025] In the diagram, 1. Shell; 2. Mixing assembly; 21. Mixing tank; 22. Power unit; 221. Motor; 222. Cover plate; 223. Sun gear; 224. Planetary gear; 225. Gear ring; 226. Planetary carrier; 23. Mixing rod; 3. Scraping assembly; 31. Slip ring; 32. Scraper; 33. Ball bearing; 4. Negative pressure assembly; 41. Air pump; 42. Negative pressure cover; 43. Connecting pipe; 5. Mixing tank; 6. Ventilation port; 7. Filter screen; 8. Track groove; 81. Inclined section; 82. Rotary section; 9. Support ring; 10. Cleaning trough; 11. Baffle; 12. Guide block; 13. Guide groove. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Example:
[0028] Reference Figure 1 - Figure 6 The present invention discloses a novel cement preparation device, including a shell 1, a mixing tank 5 on the top of the shell 1, and a plurality of ventilation openings 6 arranged in a ring array on the outer periphery of the shell 1, each ventilation opening 6 being connected to a filter screen 7.
[0029] The stirring assembly 2 includes a stirring tank 21, which is rotatably connected to the bottom of the stirring tank 5. The outer periphery of the stirring tank 21 is provided with a track groove 8 for reciprocating linear motion.
[0030] The slagging assembly 3 includes a slip ring 31 and a scraper 32. The slip ring 31 is fitted around the circumferential side of the mixing tank 21. The inner wall of the slip ring 31 is connected to a ball bearing 33 that contacts the track groove 8. The outer circumferential side of the slip ring 31 is connected to a scraper 32 equal in number to the filter screen 7. The side of the scraper 32 away from the slip ring 31 contacts the filter screen 7.
[0031] The negative pressure assembly 4 includes an air pump 41 and a negative pressure cover 42. The air pump 41 is installed at the bottom of the housing 1. The air inlet of the air pump 41 is connected to a negative pressure cover 42 in the same number as the vent 6 via a connecting pipe 43. Multiple negative pressure covers 42 are installed one-to-one at the opening of the vent 6.
[0032] In this embodiment, observation Figure 1 It can be seen that by setting a shell 1, a mixing tank 5 is provided on the top of the shell 1, and a mixing assembly 2 is connected to the top of the shell 1, which includes a mixing bucket 21. The mixing bucket 21 is rotatably connected to the bottom of the mixing tank 5, which can uniformly mix the powders of various materials together when preparing cement.
[0033] Subsequently combined Figure 2 It can be observed that multiple ventilation openings 6 are arranged in a ring array on the outer periphery of the shell 1, and each ventilation opening 6 is connected to a filter screen 7. A negative pressure component 4 is set at the bottom of the shell 1. The negative pressure component 4 mainly consists of an air pump 41 and a negative pressure cover 42. The air pump 41 is installed at the bottom of the shell 1, and the air inlet of the air pump 41 is connected to a negative pressure cover 42 in the same number as the ventilation openings 6 through a connecting pipe 43. Multiple negative pressure covers 42 are installed one-to-one at the openings of the ventilation openings 6. This is used to create a negative pressure chamber inside the shell 1 when mixing raw materials with cement, thereby sucking away the dust generated during the mixing of cement raw materials, preventing dust from spreading and affecting the air environment, and effectively improving the safety during cement production.
[0034] Meanwhile, the filter 7 can filter out the dust drawn in by negative pressure, keeping the dust inside the housing 1, thus concentrating the dust for easy recycling later.
[0035] However, because filter 7's mesh gradually becomes clogged while filtering dust, it affects ventilation performance, leading to a decrease in dust removal efficiency. Therefore, in Figure 2It can also be seen that the outer periphery of the mixing drum 21 is provided with a track groove 8 for reciprocating linear motion. A slip ring 31 is slidably connected to the outer periphery of the mixing drum 21. The inner wall of the slip ring 31 is connected to ball bearings 33 that contact the track groove 8. The outer periphery of the slip ring 31 is connected to scrapers 32, the same number as the filter screen 7. The side of the scraper 32 away from the slip ring 31 contacts the filter screen 7. When the new cement preparation equipment is running, the mixing drum 21 rotates to mix the cement raw materials. As the mixing drum 21 rotates, the track groove 8 rotates as well, thus using the track groove 8 to compress the ball bearings 33, causing the slip ring 31 to move up and down along the axis of the mixing drum 21. This allows the scraper 32 to scrape up and down the surface of the filter screen 7, achieving the effect of cleaning the filter screen 7. This effectively ensures that the filter screen 7 will not become clogged, thereby effectively extending the maintenance cycle of the new cement preparation equipment and reducing its maintenance costs.
[0036] In a further preferred embodiment of this utility model, such as Figure 6 As shown, the track groove 8 includes an inclined section 81 and a rotating section 82. There are two inclined sections 81 and two rotating sections 82. The two inclined sections 81 are symmetrically arranged on both sides of the mixing tank 21 about the axis of the mixing tank 21. The two ends of the two inclined sections 81 are connected by the rotating section 82. The connection between the inclined section 81 and the rotating section 82 is smoothly transitioned.
[0037] In this embodiment, the track groove 8 is configured with two inclined sections 81 and two rotating sections 82. The two inclined sections 81 are symmetrically arranged on both sides of the mixing tank 21 with respect to the axis of the mixing tank 21. Both ends of the two inclined sections 81 are connected by the rotating sections 82. The connection between the inclined sections 81 and the rotating sections 82 is smoothly transitioned. When the mixing tank 21 rotates, the first inclined section 81 squeezes the ball 33 upward. Then, when it moves to the top of the inclined section 81, it enters the rotating section 82. Then, it enters the second inclined section 81 from the rotating section 82. At this time, the inclined section 81 will push the ball 33 downward until it moves to the bottom of the rotating section 82. This process is repeated to achieve the effect of the scraper 32 cleaning the filter screen 7.
[0038] In a further preferred embodiment of this utility model, such as Figure 4 - Figure 6As shown, the stirring assembly 2 also includes a power unit 22 and a stirring rod 23. The power unit 22 mainly consists of a motor 221, a cover plate 222, a sun gear 223, planet gears 224, and a gear ring 225. The motor 221 is installed on the top of the cover plate 222. The output shaft of the motor 221 passes through the cover plate 222 and is fixedly connected to the sun gear 223. Multiple planet gears 224 mesh with the outer periphery of the sun gear 223. The planet gears 224 are connected to the cover plate 222 through a planet carrier 226. The stirring rod 23 is fixedly connected to the bottom of the sun gear 223. The gear ring 225 that meshes with the planet gears 224 is fixedly connected to the top of the stirring tank 21.
[0039] In this embodiment, the power unit 22 and the stirring rod 23 can be used to mix the cement raw materials in the mixing tank 21 to achieve the function of preparing cement.
[0040] Because the mixing drum 21 needs to rotate continuously during the cement preparation process to allow the scraper component 3 to move back and forth to clean the filter screen 7, therefore, in combination with Figure 5 and Figure 6 It can be observed that the power unit 22 mainly consists of a motor 221, a cover plate 222, a sun gear 223, planet gears 224, and a ring gear 225. The motor 221 is mounted on the top of the cover plate 222. The output shaft of the motor 221 passes through the cover plate 222 and is fixedly connected to the sun gear 223. Multiple planet gears 224 mesh with the outer periphery of the sun gear 223. The planet gears 224 are connected to the cover plate 222 via a planet carrier 226. A stirring rod 23 is fixedly connected to the bottom of the sun gear 223. The top of the stirring tank 21 is fixedly connected to the ring gear 225. The gear ring 225 meshes with the motor 221, which drives the sun gear 223 to rotate, thereby causing the planet gear 224 to rotate. The planet gear 224 is connected to the cover plate 222 through the planet carrier 226, so the planet gear 224 does not revolve around the sun and can stably transmit power to the gear ring 225 to make the gear ring 225 rotate. The gear ring 225 is fixedly connected to the mixing tank 21, so when the motor 221 is running, both the mixing rod 23 and the mixing tank 21 will rotate, which achieves the effect of mixing cement raw materials while ensuring the operational stability of the scraper assembly 3.
[0041] In a further preferred embodiment of this utility model, such as Figure 2 As shown, a support ring 9 for supporting the cover plate 222 is fixedly connected to the opening of the stirring tank 5. The bottom of the support ring 9 and the top of the stirring tank 21 have space for air intake.
[0042] In this embodiment, by fixing a support ring 9 at the opening of the stirring tank 5, the support ring 9 can provide support for the cover plate 222, thereby reducing the difficulty of installing the stirring assembly 2 and the shell 1.
[0043] By leaving a space between the support ring 9 and the top of the mixing tank 21, when a negative pressure is generated in the mixing tank 5, the dust generated in the mixing tank 21 due to mixing can be sucked away using this space, which can effectively ensure the stability of dust removal during the cement preparation process.
[0044] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the bottom of the shell 1 is provided with a dust removal trough 10 that communicates with the stirring tank 5, and the bottom of the dust removal trough 10 is hinged with a baffle 11 to prevent dust leakage.
[0045] In this embodiment, by providing a cleaning trough 10 at the bottom of the shell 1 that communicates with the mixing tank 5, the cement raw materials accumulated in the mixing tank 5 can be quickly recovered, which can effectively reduce the difficulty of subsequent cleaning.
[0046] A baffle 11 for preventing dust leakage is hinged at the bottom of the dust removal trough 10, which prevents dust from leaking through the dust removal trough 10 when the new cement preparation equipment is in operation.
[0047] In a further preferred embodiment of this utility model, such as Figure 3 As shown, a guide block 12 is fixedly connected to the outer wall of the slip ring 31, and a guide groove 13 connected to the guide block 12 is vertically opened on the inner wall of the stirring tank 5.
[0048] In this embodiment, since the ball 33 is rolled by the compression of the track groove 8, the track groove 8 will laterally compress the ball 33 under the drive of the mixing tank 21, which will cause the ball 33 to generate a lateral torque, which will cause the slip ring 31 to squeeze the side wall of the vent 6 with the scraper 32, resulting in friction damage between the scraper 32 and the vent 6.
[0049] Therefore in Figure 3 It can be seen that a guide block 12 is fixedly connected to the outer wall of the slip ring 31, and a guide groove 13 is then opened on the inner wall of the mixing tank 5. The guide block 12 is slidably disposed in the guide groove 13, thereby using the guide groove 13 to assist the guide block 12 to prevent the slip ring 31 from shifting to the side when sliding up and down, thereby preventing the scraper 32 from rubbing against the side wall of the vent 6.
[0050] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A novel cement preparation device, characterized in that, Includes a shell (1), a stirring tank (5) is provided on the top of the shell (1), and multiple ventilation openings (6) are provided in a ring array on the outer periphery of the shell (1), and a filter screen (7) is connected in each ventilation opening (6); The stirring assembly (2) includes a stirring tank (21), which is rotatably connected to the bottom of the stirring tank (5). The outer periphery of the stirring tank (21) is provided with a track groove (8) for reciprocating linear motion up and down. The slagging assembly (3) includes a slip ring (31) and a scraper (32). The slip ring (31) is fitted around the circumferential side of the mixing tank (21). The inner wall of the slip ring (31) is connected to a ball bearing (33) that contacts the track groove (8). The outer circumferential side of the slip ring (31) is connected to a number of scrapers (32) equal to the number of filter screens (7). The side of the scraper (32) away from the slip ring (31) contacts the filter screen (7). The negative pressure assembly (4) includes an air pump (41) and a negative pressure cover (42). The air pump (41) is installed at the bottom of the housing (1). The air inlet of the air pump (41) is connected to a negative pressure cover (42) in the same number as the vent (6) via a connecting pipe (43). Multiple negative pressure covers (42) are installed one by one at the opening of the vent (6).
2. The novel cement preparation equipment according to claim 1, characterized in that, The track groove (8) includes an inclined section (81) and a rotating section (82). There are two inclined sections (81) and two rotating sections (82). The two inclined sections (81) are symmetrically arranged on both sides of the mixing tank (21) about the axis of the mixing tank (21). The two ends of the two inclined sections (81) are connected by the rotating section (82). The connection between the inclined section (81) and the rotating section (82) is smoothly transitioned.
3. The novel cement preparation equipment according to claim 2, characterized in that, The stirring assembly (2) also includes a power unit (22) and a stirring rod (23). The power unit (22) mainly consists of a motor (221), a cover plate (222), a sun gear (223), planet gears (224), and a gear ring (225). The motor (221) is installed on the top of the cover plate (222). The output shaft of the motor (221) passes through the cover plate (222) and is fixedly connected to the sun gear (223). Multiple planet gears (224) mesh on the outer periphery of the sun gear (223). The planet gears (224) are connected to the cover plate (222) through a planet carrier (226). The stirring rod (23) is fixedly connected to the bottom of the sun gear (223). The gear ring (225) meshing with the planet gears (224) is fixedly connected to the top of the stirring tank (21).
4. The novel cement preparation equipment according to claim 3, characterized in that, The opening of the mixing tank (5) is fixedly connected to a support ring (9) for supporting the cover plate (222), and the bottom of the support ring (9) and the top of the mixing tank (21) have space for air intake.
5. The novel cement preparation equipment according to claim 4, characterized in that, The bottom of the shell (1) is provided with a cleaning trough (10) that communicates with the stirring tank (5), and the bottom of the cleaning trough (10) is hinged with a baffle (11) to prevent ash leakage.
6. The novel cement preparation equipment according to claim 5, characterized in that, The outer wall of the slip ring (31) is fixedly connected to a guide block (12), and the inner wall of the stirring tank (5) is vertically provided with a guide groove (13) connected to the guide block (12).