Automatic premixing equipment for float glass production line

Abstract

The invention discloses automatic premixing equipment for a float glass production line, and relates to the technical field of glass production, the automatic premixing equipment comprises a premixing tank, a cover plate, a heating wire arranged outside the premixing tank and a stirring frame arranged in the premixing tank, the stirring frame is internally provided with a cleaning mechanism, and the cleaning mechanism comprises a scraping assembly; through the designed cleaning mechanism, the scraper rotates along with the driving assembly and moves up and down, splashing raw material liquid drops on the inner wall of the premixing tank and an area above a liquid level line can be scraped in real time, drying and solidification of the raw material liquid drops are avoided, the two groups of rolling brushes rotate oppositely and move up and down, raw materials attached to the surface of the scraper can be synchronously cleaned, the scraping effect is ensured, and the production efficiency is improved. The inner hydrophobic coatings on the inner wall of the premixing tank and the bottom of the cover plate can reduce adhesion of raw material liquid drops on the top of the premixing tank, subsequent cleaning can be facilitated, and dry and solidified raw material liquid drops are prevented from being mixed into a new batch of raw materials.

Description

Technical Field

[0001] The invention belongs to the technical field of glass production, in particular to automatic premixing equipment for a float glass production line. Background Art

[0002] In float glass production lines, raw material premixing is a critical process that determines glass quality. Glass raw materials typically consist of multiple main ingredients and various smaller ingredients. These smaller ingredients are premixed in a premixing device and then added to the main mixer to mix with the main ingredients. During the premixing process, different smaller ingredients are added to the premixing tank through multiple inlets. To improve premixing efficiency, heating wires are installed on the outer wall of the premixing tank to heat the raw materials inside. This heat conduction enhances the fluidity of the raw materials after heating, thereby shortening mixing time.

[0003] During the stirring process, the viscous raw materials are easily splashed to the inner wall area above the liquid level line in the premixing tank due to centrifugal force. When the heating wire conducts heat to the tank body, the temperature of the inner wall of the premixing tank above the liquid level line of the mixed liquid of the raw materials in the premixing tank rises simultaneously, causing the raw material droplets splashed and attached to the inner wall area above the liquid level line to dry and solidify quickly due to the heat. The dried and solidified raw material residues will not only affect the cleaning efficiency of the inner wall of the premixing tank and increase the difficulty of subsequent manual or mechanical cleaning, but may also fall off after long-term accumulation and mix into the new batch of raw materials, resulting in uneven glass composition, impurity defects and other problems. For this reason, we propose an automated premixing equipment for float glass production lines. Summary of the Invention

[0004] The object of the present invention is to provide an automated premixing device for a float glass production line to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an automated premixing device for a float glass production line, comprising a premixing tank, a cover plate, a heating wire disposed outside the premixing tank, and a stirring frame disposed inside the premixing tank, wherein a cleaning mechanism is disposed inside the stirring frame, and the cleaning mechanism comprises: The scraping assembly includes a scraper and a long box. Two sets of roller brushes are rotatably provided on one side of the long box. A mounting block is fixedly provided on the other side of the long box. An electric push rod is provided on the mounting block for driving the roller brush to move up and down. The inner wall of the premixing tank and the bottom of the cover plate are sprayed with an inner hydrophobic coating to reduce the adhesion of splashing raw material droplets.

[0006] Preferably, a rotating rod 1 and a rotating rod 3 are rotatably provided inside the long box, and a waterproof motor 2 is fixedly provided on the other side of the long box.

[0007] Preferably, a second rotating rod, a first friction wheel and a second friction wheel are rotatably provided inside the long box, an outer wheel is fixedly sleeved on the outside of the third rotating rod, and a transmission belt is sleeved between the second rotating rod and the first rotating rod.

[0008] Preferably, the cleaning mechanism further comprises a driving assembly, wherein the driving assembly comprises an electric slip ring and a sealed bearing arranged inside the premixing tank, and a side frame is fixedly provided at the bottom of the sealed bearing.

[0009] Preferably, two groups of side blocks are fixedly provided on the outer wall of the sealed bearing, and hydraulic rods are provided on the tops of the side blocks.

[0010] Preferably, an extension plate is fixedly provided on the inner wall of the sealed bearing, and a waterproof motor 1 is fixedly provided on the extension plate, and a rotating wheel is fixedly provided on the working end of the waterproof motor 1.

[0011] Preferably, a moving part is provided between the bottom of the side frame and the scraper, and the moving part includes an electric push rod 2 fixed to the bottom of the side frame, an L-shaped plate is fixed to the working end of the electric push rod 2, and a vertical plate is fixed to the side of the scraper, and the L-shaped plate and the vertical plate are fixedly connected by two sets of bolts.

[0012] Preferably, the inner wall of the cover plate is provided with a plurality of small material inlets, and an upper motor is fixedly provided on the top of the cover plate.

[0013] Preferably, a stirring shaft is fixedly provided at the bottom working end of the upper motor, and three sets of stirring frames are fixedly provided at the bottom of the stirring shaft.

[0014] Preferably, a heat insulating sleeve is fixedly provided on the outside of the premixing tank, a discharge port is fixedly provided on the bottom of the premixing tank, a discharge valve is provided on the discharge port, and two sets of spoilers are fixedly provided on the inner wall of the premixing tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention has a cleaning mechanism designed in which the scraper rotates and moves up and down with the driving assembly, which can scrape off the splashing raw material droplets on the inner wall of the premixing tank and the area above the liquid level line in real time to prevent them from drying and solidifying. The two sets of roller brushes rotate in opposite directions and move up and down to simultaneously clean the raw materials attached to the scraper surface to ensure the scraping effect. The inner hydrophobic coating on the inner wall of the premixing tank and the bottom of the cover plate can reduce the attachment of raw material droplets on the top of the premixing tank, which can facilitate subsequent cleaning and reduce the mixing of dried and solidified raw material droplets into new batches of raw materials, thereby improving the premixing effect of multiple raw materials.

[0016] (2) The present invention has a moving part designed so that when the scraper's contact surface with the inner wall of the premixing tank is worn due to long-term use, the electric push rod 2 can drive the scraper to move toward the inner wall of the premixing tank, narrowing the gap caused by wear and ensuring that the scraper is always in close contact with the tank wall, continuously and effectively scraping off the attached raw material droplets. In addition, the electric push rod 2 can drive the scraper away from the inner wall of the premixing tank, so that the roller brush can move up and down without hindrance, and comprehensively clean the front, back, both sides and top and bottom of the scraper to prevent the accumulation of residual raw materials on the scraper surface. When the scraper is severely worn and needs to be replaced, it is only necessary to unscrew the bolts to remove the old scraper and install a new scraper. No complicated tools or professional operations are required, which greatly shortens the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic cross-sectional view of the heat insulation sleeve of the present invention; Figure 3 This is a schematic cross-sectional structural diagram of a premixing tank according to the present invention; Figure 4 It is a schematic diagram of the electric slip ring and sealed bearing structure of the present invention; Figure 5 It is a schematic diagram of the hydraulic rod structure of the present invention; Figure 6 It is a bottom view structural diagram of the electric slip ring and sealed bearing of the present invention; Figure 7 It is a schematic cross-sectional view of the electric slip ring and sealed bearing of the present invention; Figure 8 It is a schematic diagram of the scraper and long box structure of the present invention; Figure 9 This is a schematic cross-sectional view of the long box structure of the present invention; In the figure: 100, thermal insulation sleeve; 101, premixing tank; 102, small material inlet; 103, cover plate; 104, heating wire; 105, spoiler; 106, stirring frame; 107, stirring shaft; 200, hydraulic rod; 201, side block; 202, scraper; 203, inner hydrophobic coating; 205, roller brush; 206, electric slip ring; 207, sealed bearing; 208, side frame; 210, long box; 211, electric push rod 1; 212, waterproof motor 1; 213, rotating wheel; 214, mounting block; 215, waterproof motor 2; 216, rotating rod 1; 217, rotating rod 2; 218, rotating rod 3; 219, outer wheel; 300, electric push rod 2; 301, L-shaped plate; 302, vertical plate. DETAILED DESCRIPTION

[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example 1 See also Figures 1-9 The present invention provides a technical solution: an automated premixing device for a float glass production line, wherein the bottom interface of the mixed raw materials in the premixing tank 101 is a liquid level line, comprising the premixing tank 101, a cover plate 103, a heating wire 104 disposed outside the premixing tank 101, and a stirring frame 106 disposed inside the premixing tank 101. A controller is disposed outside the premixing tank 101, and the controller can control the operation of two sets of hydraulic rods 200, electric push rod 1 211, waterproof motor 1 212, waterproof motor 215, and electric push rod 2 300, etc. A cleaning mechanism is disposed inside the stirring frame 106, and the working ends of the two sets of hydraulic rods 200 are synchronously raised and lowered by the controller. The cleaning mechanism includes: The scraping assembly includes a scraper 202 and a long box 210. The outer portion of the roller brush 205 close to the inner wall of the premixing tank 101 is made of steel wire. Two sets of roller brushes 205 are rotatably provided on one side of the long box 210. A mounting block 214 is fixedly provided on the other side of the long box 210. An electric push rod 211 is provided on the mounting block 214. A connecting line 3 is fixedly provided between the top of the electric push rod 211 and the inner wall of the electric slip ring 206 to drive the roller brush 205 to move up and down; The inner wall of the premixing tank 101 and the bottom of the cover plate 103 are sprayed with an inner hydrophobic coating 203. The inner hydrophobic coating 203 is a fluoropolymer coating that can withstand high temperatures of 260 degrees. During use, some small amount of raw material droplets splashing onto the inner hydrophobic coating 203 will not easily adhere to it, making it easier to clean up later. When approaching the middle area of ​​the premixing tank 101, due to the large amount of splashing, a scraper 202 is used to scrape it off to reduce the adhesion of splashed raw material droplets. The interior of the long box 210 is respectively provided with a rotating rod 1 216 and a rotating rod 3 218, and the two groups of roller brushes 205 are respectively located at one end of the rotating rod 1 216 and the rotating rod 3 218. A waterproof motor 215 is fixedly provided on the other side of the long box 210, and the working end of the waterproof motor 215 is fixedly connected to the rotating rod 3 218. When the two groups of roller brushes 205 are driven to rotate, the waterproof motor 215 is turned on, and the working end of the waterproof motor 215 rotates to drive the rotating rod 3 218 to rotate. The rotating rod 3 218 drives the outer wheel 219 and the roller brush 205 fixed to the end of the rotating rod 3 218 to rotate, and the outer wheel 219 drives the second friction wheel to rotate, and the second friction wheel drives the first friction wheel to rotate, and the first friction wheel drives the rotating rod 217 to rotate. The rotating rod 217 drives the rotating rod 1 216 to rotate through the transmission belt. At this time, the rotating rod 1 216 drives the roller brush 205 fixed to it to rotate, and the two groups of roller brushes 205 rotate at the same time. The interior of the long box 210 is respectively provided with a rotating rod 217, a first friction wheel and a second friction wheel. The outer side of the rotating rod 3 218 is fixed with an outer wheel 219. The outer wall of the outer wheel 219 contacts the second friction wheel, the second friction wheel contacts the first friction wheel, and the first friction wheel contacts the outer wall of the rotating rod 217. A transmission belt is provided between the rotating rod 217 and the rotating rod 1 216.

[0020] Example 2 Based on Example 1, please refer to Figure 3-Figure 8 The cleaning mechanism also includes a drive assembly, which includes an electric slip ring 206 and a sealed bearing 207 arranged inside the premixing tank 101. The electric slip ring 206 can provide power to structures such as the electric push rod 1 211, the waterproof motor 1 212, the waterproof motor 215, and the electric push rod 2 300, and these structures are all resistant to high temperatures. The electric slip ring 206 is composed of a stationary ring and a rotating ring. The stationary ring is fixed to the stationary ring on the sealed bearing 207 below. The rotating ring is connected to the connecting line 3, the connecting line 2, the connecting line 1, and the connecting line 4. The sealed bearing 207 is composed of a stationary ring and a rotating ring. The stationary ring is connected to the side block 201, and the rotating ring is fixedly connected to the extension plate, the runner 213, the side frame 208, and the electric push rod 1 211. The side frame 208 is fixedly provided at the bottom of the sealed bearing 207, and the scraper 202 is located at the bottom of the side frame 208. A connecting line 1 is fixedly provided between the waterproof motor 215 and the inner wall of the electric slip ring 206; Two sets of side blocks 201 are fixedly provided on the outer wall of the sealed bearing 207. A hydraulic rod 200 is provided on the top of the side block 201. The top of the hydraulic rod 200 passes through the interior of the cover plate 103 and is fixed on the cover plate 103. An extension plate is fixedly provided on the inner wall of the sealed bearing 207, and a waterproof motor 212 is fixedly provided on the extension plate. A rotating wheel 213 is fixedly provided on the working end of the waterproof motor 212, and the outer wall of the rotating wheel 213 contacts the bottom of the inner wall of the sealed bearing 207. The waterproof motor 212 is fixedly connected to the inner wall of the electric slip ring 206 through a connecting line 4. The waterproof motor 1 212 and the waterproof motor 2 215 are both high-temperature resistant motors. The electric push rod 1 211 and the electric push rod 2 300 are both high-temperature resistant electric push rods. The waterproof motor 1 212 and the waterproof motor 2 215 can prevent water in the raw materials from entering their interiors.

[0021] In summary, various raw materials weighed in advance are put into the premixing tank 101 through the small material inlet 102 on the cover plate 103, and then the upper motor is turned on to drive the stirring shaft 107 to rotate and then drive the stirring frame 106 to rotate, and then the various raw materials inside can be stirred, and the heating wire 104 is turned on at the same time, and then the heating wire 104 generates heat to heat the raw materials in the premixing tank 101, and during the stirring process, some raw material droplets are easily splashed onto the inner wall of the premixing tank 101 and the inner wall of the inner hydrophobic coating 203. At this time, some small amounts of droplets splashed onto the inner wall of the inner hydrophobic coating 203 are affected by the low surface energy characteristics and special microstructure of the inner hydrophobic coating 203, as well as the surface tension of the droplets themselves, and drip or have weak adhesion (which makes it convenient to clean up the solidified raw material droplets with weak adhesion later); The raw material droplets that splash above the liquid level line and close to the heating wire 104 are easily affected by the heating of the heating wire 104 and dry and solidify. At this time, the raw material droplets are scraped and cleaned before drying and solidifying (that is, while stirring and mixing). When scraping, the waterproof motor 212 is turned on, and then the working end drives the wheel 213 to rotate, thereby driving the rotating ring on the sealed bearing 207 in contact with it to rotate, and the rotating ring drives the electric push rod 211, the side frame 208, etc. to rotate, and the side frame 208 drives the scraper 202 to rotate. At this time, the scraper 202 can scrape the raw material droplets attached to the area above the liquid level line and below the inner hydrophobic coating 203, and during the scraping process of the scraper 202, some droplets adhere to the front or back of the scraper 202. At this time, the two groups of roller brushes 205 rotating in opposite directions (both groups of roller brushes 205 rotate toward the scraper 202, and when viewed from the right, the left roller brush 205 rotates clockwise, and the right roller brush 205 rotates counterclockwise) sweep the raw material droplets attached to the front and back of the scraper 202 to make them fall off, and at the same time, the electric push rod 1 211 is turned on, and the working end of the electric push rod 1 211 moves downward to drive the mounting block 214, the long box 210, the roller brush 205 and the waterproof motor 215 to move downward. When the two groups of roller brushes 205 move downward to the appropriate position (that is, below the scraper 202), the working end of the electric push rod 1 211 moves upward, driving the two groups of rotating roller brushes 205 to move upward, and this is repeated; Moreover, during the scraping and cleaning process, the working ends of the two sets of hydraulic rods 200 move downward, driving the electric slip ring 206, the sealed bearing 207, the scraper 202, the long box 210 and other structures to move downward. At this time, the downward movement of the scraper 202 can scrape off some raw material droplets attached to the inner wall of the premixing tank 101 where the liquid level of some raw materials is at a lower level. Then, after the scraper 202 rotates one circle, the working ends of the two sets of hydraulic rods 200 move upward, driving the scraper 202 and other structures to move upward, and continue to scrape the upper part, and repeat this process. During the stirring process, the scraper 202 can move up and down for cleaning while rotating, and the two sets of roller brushes 205 can move up and down again on the scraper 202 that moves up and down to sweep away the raw material droplets attached to the scraper 202.

[0022] Example 3 Based on Example 2, please refer to Figures 1-8A moving part is provided between the bottom of the side frame 208 and the scraper 202, and the moving part includes an electric push rod 2 300 fixed to the bottom of the side frame 208, an L-shaped plate 301 is fixed on the working end of the electric push rod 2 300, and a vertical plate 302 is fixed on the side of the scraper 202. The L-shaped plate 301 and the vertical plate 302 are fixedly connected by two sets of bolts. The scraper 202 that is severely worn after a long period of use can be removed and replaced by the bolts. A connecting line 2 is fixed between the electric push rod 2 300 and the inner wall of the electric slip ring 206.

[0023] In summary, when some droplets of raw material adhere to both sides of the scraper 202, the electric push rod 200 can be turned on, and the working end of the electric push rod 200 extends outward to drive the L-shaped plate 301 to move toward the long box 210, and the L-shaped plate 301 drives the vertical plate 302 and the scraper 202 to move toward the long box 210. Subsequently, the side of the scraper 202 that is in contact with the inner wall of the premixing tank 101 no longer contacts the inner wall of the premixing tank 101. At this time, the two sets of roller brushes 205 continue to move up and down to sweep away the droplets of raw material attached to the surfaces of both sides of the scraper 202, thereby achieving all-round cleaning of the outer surface of the scraper 202. Moreover, when the scraper 202 is used for a long time and the surface in contact with the inner wall of the premixing tank 101 is worn, the surface gap between the scraper 202 and the inner wall of the premixing tank 101 increases, and then the electric push rod 2 300 can be started. At this time, the working end moves to the left (that is, moves away from the long box 210), driving the scraper 202 and other structures to move. Subsequently, the scraper 202 moves to fit the inner wall surface of the premixing tank 101, reducing the gap, maintaining the scraping effect of the scraper 202, and increasing the service life of the scraper 202. When the scraper 202 is severely worn after a long period of use, the two sets of bolts on the L-shaped plate 301 can be unscrewed to remove the scraper 202 and the vertical plate 302, and then replaced with a new one and tightened with the two sets of bolts for easy replacement.

[0024] In this embodiment, a plurality of small material inlets 102 are provided on the inner wall of the cover plate 103 , and an upper motor is fixedly provided on the top of the cover plate 103 .

[0025] In this embodiment, a stirring shaft 107 is fixedly provided at the bottom working end of the upper motor, and three sets of stirring frames 106 are fixedly provided at the bottom of the stirring shaft 107 .

[0026] In this embodiment, a heat-insulating sleeve 100 is fixedly provided on the outside of the premixing tank 101, and a temperature sensor is provided on the inner wall of the premixing tank 101. The temperature sensor monitors the temperature inside the premixing tank 101. If heating is required (for example, colorants such as iron oxide and cobalt oxide), the heating wire 104 in the heat-insulating sleeve 100 is controlled to start heating. The heating wire 104 is located inside the heat-insulating sleeve 100, and the heating wire 104 is spiral. The arrangement of the heating wire 104, the heat-insulating sleeve 100 and the temperature sensor can meet the mixing requirements of some small materials that have temperature requirements, thereby improving the applicability of the equipment. The bottom of the premixing tank 101 is fixedly provided with a discharge port, and a discharge valve is provided on the discharge port. The discharge valve is used to control the output of the premixed raw materials. The inner wall of the premixing tank 101 is fixedly provided with two sets of spoilers 105. The spoilers 105 enhance the mixing effect of the various raw materials added, and improve the mixing efficiency and quality. The interior of the cover plate 103 is also provided with an air outlet. The weight of the various raw materials added to the premixing tank 101 is weighed in advance according to needs, and then added to the premixing tank 101 according to the corresponding small material inlet 102, and then the stirring and premixing operation is carried out.

[0027] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An automated premixing device for a float glass production line, comprising a premixing tank (101), a cover plate (103), a heating wire (104) arranged outside the premixing tank (101), and a stirring rack (106) arranged inside the premixing tank (101), wherein a cleaning mechanism is arranged inside the stirring rack (106), and the device is characterized in that: The cleaning mechanism comprises: A scraping assembly, the scraping assembly comprising a scraper (202) and a long box (210), two groups of roller brushes (205) being rotatably provided on one side of the long box (210), a mounting block (214) being fixedly provided on the other side of the long box (210), and an electric push rod (211) being provided on the mounting block (214) for driving the roller brushes (205) to move up and down; The inner wall of the premixing tank (101) and the bottom of the cover plate (103) are sprayed with an inner hydrophobic coating (203) to reduce the adhesion of splashed raw material droplets.

2. The automated premixing equipment for a float glass production line according to claim 1, characterized in that: A rotating rod 1 (216) and a rotating rod 3 (218) are rotatably provided inside the long box (210), and a waterproof motor 2 (215) is fixedly provided on the other side of the long box (210).

3. The automated premixing equipment for a float glass production line according to claim 2, characterized in that: The interior of the long box (210) is rotatably provided with a second rotating rod (217), a first friction wheel, and a second friction wheel. The exterior of the third rotating rod (218) is sleeved with an outer wheel (219), and a transmission belt is sleeved between the second rotating rod (217) and the first rotating rod (216).

4. The automated premixing equipment for a float glass production line according to claim 1, characterized in that: The cleaning mechanism further comprises a drive assembly, wherein the drive assembly comprises an electric slip ring (206) and a sealed bearing (207) arranged inside the premixing tank (101), and a side frame (208) is fixedly arranged at the bottom of the sealed bearing (207).

5. The automated premixing equipment for a float glass production line according to claim 4, characterized in that: Two groups of side blocks (201) are fixedly provided on the outer wall of the sealed bearing (207), and a hydraulic rod (200) is provided on the top of the side blocks (201).

6. The automated premixing equipment for a float glass production line according to claim 5, characterized in that: An extension plate is fixedly provided on the inner wall of the sealed bearing (207), and a waterproof motor (212) is fixedly provided on the extension plate. A rotating wheel (213) is fixedly provided on the working end of the waterproof motor (212).

7. The automated premixing equipment for a float glass production line according to claim 4, characterized in that: A movable part is provided between the bottom of the side frame (208) and the scraper (202), and the movable part includes a second electric push rod (300) fixed to the bottom of the side frame (208), an L-shaped plate (301) is fixedly provided at the working end of the second electric push rod (300), and a vertical plate (302) is fixedly provided on the side of the scraper (202), and the L-shaped plate (301) and the vertical plate (302) are fixedly connected by two sets of bolts.

8. The automated premixing equipment for a float glass production line according to claim 1, characterized in that: The inner wall of the cover plate (103) is provided with a plurality of small material inlets (102), and an upper motor is fixedly provided on the top of the cover plate (103).

9. The automated premixing equipment for a float glass production line according to claim 8, characterized in that: A stirring shaft (107) is fixedly provided at the bottom working end of the upper motor, and three sets of stirring frames (106) are fixedly provided at the bottom of the stirring shaft (107).

10. The automated premixing equipment for a float glass production line according to claim 1, characterized in that: A heat-insulating sleeve (100) is fixedly provided on the outside of the premixing tank (101), a discharge port is fixedly provided on the bottom of the premixing tank (101), a discharge valve is provided on the discharge port, and two groups of spoilers (105) are fixedly provided on the inner wall of the premixing tank (101).

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