Device for controlling discharge amount and glass kiln
By designing a device that controls the discharge volume including heating structure and control structure in a glass kiln, the problem of inconvenient control of glass liquid temperature is solved, flexible adjustment of glass liquid temperature is achieved, and the quality and yield of glass products are improved.
Patent Information
- Application Number
- CN202420918811.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-04-29
AI Technical Summary
In a glass kiln, the temperature control is inconvenient after the glass liquid flows out from the feed port, which affects the flowability, resulting in a deviation from the actual feed quantity and the set feed quantity, affecting the specifications and yield of the glass product.
A device for controlling the discharge volume is designed, including a heating structure and a control structure. The heating structure consists of a heating shell and a heating body. The heating body extends spirally along the heating shell axially. Through the control structure, the heating power of the heating body is adjusted to achieve flexible adjustment of the glass liquid temperature between the feed port and the calendering mechanism.
By flexibly adjusting the temperature of the glass liquid to maintain its fluidity, the actual feeding amount reaching the calendered structure is more consistent with the set feeding amount, improving the quality and yield of glass products, and extending the service life of the refractory bricks.
Smart Images
Figure CN222715234U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of glass manufacturing, and in particular relates to a device for controlling the discharge amount and a glass kiln. Background Art
[0002] During the process of producing glass by calendering, the feed port at the bottom of the glass kiln is opposite to the calendering structure, so as to continuously supply molten glass to the calendering structure according to the set feed amount. However, since the feed port is exposed to the air and has a certain distance from the calendering structure, the fluidity of the molten glass will decrease rapidly with temperature after flowing out of the feed port, resulting in a deviation between the actual feed amount and the set feed amount, which makes it difficult to meet the calendering production requirements.
[0003] To solve the above problems, the traditional method is to set a burner at the feed port, and use the gas flame sprayed from the burner to heat the molten glass at the feed port, so that the molten glass still has a high temperature and good fluidity when it reaches the rolling structure; but the gas flame directly heats the feed port, which is easy to cause the refractory bricks where the feed port is opened to burst, resulting in a shortened kiln life. In addition, since the heating effect of the gas flame is greatly affected by the environment, gas calorific value and gas flow, it is not only difficult to control the glass liquid temperature by adjusting the gas flame size, but also it is easy for the glass liquid flow to be unstable or even interrupted. The stability of the feeding amount of the glass kiln to the rolling structure has a great influence on the specifications and dimensions of the glass products produced by rolling, and to a certain extent determines the yield and output of the glass products.
[0004] Therefore, it is necessary to design a discharge control device that can flexibly adjust the glass liquid temperature between the feed port and the calendering structure to maintain fluidity, so that the actual feed amount reaching the calendering structure is more consistent with the set feed amount. Summary of the invention
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a device for controlling the discharge amount and a glass kiln, so as to solve the technical problems of inconvenient temperature control and fluidity impact after the glass liquid flows out from the feed port, so that the actual feed amount reaching the rolling mechanism is more consistent with the set feed amount, thereby achieving the effect of improving the quality and yield rate of glass products.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A device for controlling the discharge amount comprises a heating structure and a control structure. The heating structure comprises a heating shell and a heating body. The heating shell is provided with an axially penetrating liquid flow channel. The heating body is arranged in the liquid flow channel. The control structure is electrically connected to the heating body. The control structure comprises a controller, a power regulator and a temperature sensor. The sensing end of the temperature sensor is located in the heating shell. The heating body is provided with temperature sensors on both sides of the heating shell in the axial direction so as to obtain temperature data of the glass liquid before and after heating. The controller is electrically connected to the power regulator and the temperature sensor respectively. The power regulator is electrically connected to the heating body so as to control the output power of the power regulator in combination with the temperature data so as to adjust the heating value of the heating body.
[0008] Furthermore, the heating shell is composed of at least two axially split shells that are detachably connected.
[0009] Furthermore, each axially split shell is tightly connected together through a clamp.
[0010] Furthermore, the heating body is an electric heating wire that spirally extends along the axial direction of the heating shell, with both ends facing the same shell and extending out of the heating shell to be electrically connected to the control structure.
[0011] Furthermore, an annular mounting groove matching the spiral size of the heating body is provided on the inner wall of the liquid flow channel, and the heating body is located in the annular mounting groove.
[0012] The utility model also includes a glass kiln for controlling the discharge amount, the glass kiln includes a device for controlling the discharge amount as described above, a feed port is provided at the bottom of the glass kiln, a heating shell is installed below the glass kiln, the liquid flow channel is opposite to the feed port, and the upper end of the heating shell is in close contact with the refractory bricks around the feed port.
[0013] Furthermore, the heating shell is installed under the glass kiln through a bracket, the bracket includes a base plate and a bracket, the base plate is provided with a through hole, the heating shell is located between the glass kiln and the base plate, the lower end of the heating shell abuts against the base plate, and the liquid flow channel is connected to the through hole, and the bracket is located outside the heating shell and connected between the glass kiln and the base plate.
[0014] Furthermore, a plurality of adjusting screw holes are vertically penetrated on the bottom plate, and the plurality of adjusting screw holes are arranged along the circumference of the heating shell and facing the lower end of the heating shell. The inner threads of the adjusting screw holes are connected with adjusting bolts, and the free ends of the rods of the adjusting bolts abut against and support the heating shell.
[0015] Furthermore, a plurality of positioning holes corresponding to the plurality of adjusting screw holes and matching in diameter are vertically opened at the lower end of the heating shell, and the free end of the rod of the adjusting bolt is located in the corresponding positioning hole and abuts against the bottom of the positioning hole.
[0016] Furthermore, a calendering mechanism is provided below the heating shell, and the ratio of the vertical length of the heating shell to the vertical distance from the feed port to the calendering mechanism is 0.3-0.8.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] 1. When in use, the utility model installs the heating shell under the glass kiln, the upper end of the heating shell abuts against the refractory bricks around the feed port of the glass kiln, and the inner hole of the heating shell faces the feed port to allow the glass liquid to pass through; the heating power of the heating body is adjusted by the control structure to achieve flexible adjustment of the glass liquid temperature between the feed port and the rolling mechanism, so as to control the feed amount and improve the quality and yield of glass products; in addition, the feed port and the area below close to the rolling mechanism are surrounded by the heating shell, which can effectively reduce the influence of the environment on the glass liquid temperature, which is beneficial to improve the heating effect and heating stability of the device, thereby avoiding the situation that the glass liquid flow is unstable or even interrupted; the glass liquid is heated by radiation from the heating body, which has little effect on the temperature of the refractory bricks at the feed port, which is beneficial to prolonging its service life.
[0019] 2. In the device for controlling the discharge amount of the utility model, the control structure realizes closed-loop control of the glass liquid temperature through temperature sensors respectively arranged on the upper and lower sides of the heating body. The glass liquid temperature control is simpler and more accurate, so that the glass liquid temperature is more in line with the temperature required by the corresponding feed amount, thereby improving the quality and yield rate of glass products.
[0020] 3. In the glass kiln for controlling the discharge amount of the utility model, the device for controlling the discharge amount is installed under the glass kiln through a bracket, and the heating shell can be tightly abutted against the refractory bricks around the glass kiln feed port by turning the adjusting bolt upward, and the heating structure can be removed for maintenance by turning the adjusting bolt downward, making the installation, use, and disassembly and maintenance of the heating structure simpler and more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram of a device for controlling the discharge amount and a glass kiln in an embodiment;
[0022] Among them, there are a heating shell 1, a heating body 2, a clamp 3, a bottom plate 4, refractory bricks 5, a temperature sensor 6, a rolling mechanism 7, a transformer 8, a power regulator 9, an adjusting bolt 10, a glass kiln 11, a pool bottom steel structure 12, glass liquid 13, and a bracket 14. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.
[0024] Example:
[0025] See also Figure 1 A device for controlling the discharge amount includes a heating structure and a control structure. The heating structure includes a heating shell 1 and a heating body 2. The heating shell 1 is provided with an axially penetrating liquid flow channel. The heating body 2 is arranged in the liquid flow channel. The control structure is electrically connected to the heating body 2. The control structure includes a controller, a power regulator 9 and a temperature sensor 6. The sensing end of the temperature sensor 6 is located in the heating shell 1. The heating body 2 is provided with temperature sensors 6 on both sides of the heating shell 1 in the axial direction so as to obtain the temperature data of the glass liquid 13 before and after heating. The controller is electrically connected to the power regulator 9 and the temperature sensor 6 respectively. The power regulator 9 is electrically connected to the heating body 2 so as to control the output power of the power regulator 9 in combination with the temperature data so as to adjust the heating value of the heating body 2.
[0026] When the utility model is in use, the heating shell 1 is installed below the glass kiln 11, and the upper end of the heating shell 1 is abutted against the refractory bricks 5 around the feed port of the glass kiln 11, so that there is no or almost no gap between the heating shell 1 and the refractory bricks 5. The inner hole of the heating shell 1 is directly opposite to the feed port, and the feed port and the area below close to the rolling mechanism 7 are surrounded by the heating shell 1, which can effectively reduce the impact of the environment on the temperature of the glass liquid 13, which is beneficial to improve the heating effect and heating stability of the device, thereby avoiding the situation where the flow of the glass liquid 13 is unstable or even interrupted. The glass liquid 13 is heated by radiation from the heating body 2, which has little effect on the temperature of the refractory bricks 5 at the feed port, which is beneficial to prolonging its service life; the heating power of the heating body 2 is adjusted by the control structure, so as to realize the flexible adjustment of the temperature of the glass liquid 13 between the feed port and the rolling mechanism 7, so as to control the feeding amount and improve the quality and yield rate of glass products. In addition, the controller controls the power regulator 9 according to the temperature of the glass liquid 13 before heating obtained by the upper temperature sensor 6, and adjusts the heating power of the heating body 2 through the power regulator 9 to control the temperature of the glass liquid 13. The lower temperature sensor 6 feeds back the temperature of the glass liquid 13 after heating, so that the controller can correct the heating power of the heating body 2 through the power regulator 9 to make the temperature of the glass liquid 13 more consistent with the temperature required by the corresponding feed amount; the temperature control closed loop is realized by two temperature sensors 6, making the temperature control more accurate.
[0027] During implementation, the heating shell 1 can be a cylindrical structure such as an outer circle and an inner square, an outer square and an inner circle, etc., in which the liquid flow channel is formed for the glass liquid 13 to pass through; in this embodiment, the heating shell 1 is cylindrical, and its inner and outer walls are both circular, and the heating body 2 is arranged in the liquid flow channel and against its inner wall; in this way, the wall thickness of the heating shell 1 is equal at various places, which not only makes the heating shell 1 have the same insulation effect on the ambient temperature in the circumferential direction, but also makes the heating shell 1 absorb the same amount of heat from the heating body 2 in the circumferential direction. At the same time, the heating body 2 is arranged against its inner wall, which makes the heating effect provided by the heating body 2 to the glass liquid more uniform, which is beneficial to improving the heating effect and making the temperature control more accurate.
[0028] In this embodiment, the sensing end of the temperature sensor 6 extends into the liquid flow channel to more accurately obtain the temperature of the glass liquid 13; the controller adopts a PLC, and the power regulator 9 is connected to the heating body 2 through the transformer 8, and the heating power of the heating body 2 is adjusted by controlling the output voltage of the transformer 8. Figure 1 As shown, the temperature sensor 6 is connected to the PLC, the PLC is connected to the power regulator 9, the output end of the power regulator 9 is respectively connected to the U and V input ends of the transformer 8, and the R and S output ends of the transformer 8 are respectively connected to the a and b ends of the heating body 2.
[0029] See also Figure 1 , the heating shell 1 is composed of at least two axially split shells that are detachably connected; when implemented, the heating shell 1 can be composed of two, three or four axially split shells, and each shell can be detachably connected by setting matching buckles and slots at opposite ends, or the opposite ends of each shell are bonded by glue; in this embodiment, the heating shell 1 is composed of two axially split shells, and the two axially split shells are tightly connected together by a clamp 3; in this way, each shell is detachably connected by the clamp 3, which not only does not require a separate connection structure to be designed on the shell, but also facilitates processing and manufacturing. In addition, the clamp 3 is a component independent of the heating shell 1, which is convenient to replace when damaged, and will not affect the connection of each shell, which is conducive to improving the reliability of the device; separating the two shells is convenient for replacing the heating body 2, cleaning the heating body 2, the temperature sensor 6 and the inner wall of the shell, etc., which is conducive to improving the practicality of the device; on the premise of meeting the convenience of disassembly, setting the heating shell 1 to be composed of two shells can reduce the difficulty of disassembly and assembly and improve the structural stability of the heating shell 1.
[0030] See also Figure 1 The heating body 2 is an electric heating wire extending in a spiral along the axial direction of the heating shell 1, and both ends are facing the same shell, and extend out of the heating shell 1 to be electrically connected to the control structure. During the process of the glass liquid 13 falling from the liquid flow channel, the electric heating wire continuously surrounds and heats the glass liquid 13; in this way, the heating effect provided by the electric heating wire to the glass liquid 13 passing through the liquid flow channel is more uniform.
[0031] See also Figure 1 An annular mounting groove matching the spiral size of the heating body 2 is provided on the inner wall of the liquid flow channel, and the heating body 2 is located in the annular mounting groove; in this way, it is convenient to install and position the heating body 2 through the annular mounting groove, and the annular mounting groove also provides axial support for the heating body 2 and limits radial movement; the heating body 2 is installed in the heating shell 1 without expanding the inner diameter of the heating shell 1 and ensuring the heating efficiency.
[0032] See also Figure 1 The utility model also includes a glass kiln for controlling the discharge amount, the glass kiln includes a device for controlling the discharge amount as described above, a feed port is provided at the bottom of the glass kiln 11, a heating shell 1 is installed below the glass kiln 11, the liquid flow channel is directly opposite to the feed port, and the upper end of the heating shell 1 is tightly abutted against the refractory bricks 5 around the feed port; in this way, the heating shell 1 separates the feed port from the surrounding environment, which can effectively reduce the influence of the surrounding environment on the temperature at the feed port, which is beneficial to improving the heating effect of the device and the accuracy of temperature control.
[0033] See also Figure 1 In order to facilitate the installation of the device to the bottom of the glass kiln 11, a bracket is arranged below the glass kiln 11, the bracket includes a bottom plate 4 and a bracket 14, the bottom plate 4 is provided with a through hole, the heating shell 1 is located between the glass kiln 11 and the bottom plate 4, the lower end of the heating shell 1 abuts against the bottom plate 4, and the liquid flow channel is communicated with the through hole, the bracket 14 is located outside the heating shell 1 and connected between the glass kiln 11 and the bottom plate 4; in this embodiment, the bracket 14 is rod-shaped and the upper end is fixedly connected to the pool bottom steel structure 12 of the glass kiln 11, there are multiple brackets 14 and they are circumferentially spaced outside the heating shell 1, and the spacing between at least two adjacent brackets 14 is greater than the outer diameter of the heating shell 1, so as to put in and take out the heating shell 1.
[0034] See also Figure 1 A plurality of adjusting screw holes are vertically penetrated on the bottom plate 4, and the plurality of adjusting screw holes are arranged along the circumferential direction of the connection between the heating shell 1 and the bottom plate 4 and are directly opposite to the lower end of the heating shell 1. The adjusting screw holes are threadedly connected with adjusting bolts 10, and the free end of the rod of the adjusting bolt 10 abuts against the supporting heating shell 1; in this way, after the heating shell 1 is placed between the bottom plate 4 and the glass kiln 11, the upper end of the heating shell 1 can be tightly abutted against the refractory bricks 5 around the feed port by tightening the adjusting bolts 10, thereby reducing the influence of the ambient temperature on the heating effect of the device and improving the accuracy of temperature control. When the device needs to be maintained, the heating shell 1 can be removed by only loosening the adjusting bolts 10, making the device more convenient to use.
[0035] See also Figure 1A plurality of positioning holes corresponding to the plurality of adjusting screw holes and matching in diameter are vertically opened at the lower end of the heating shell 1, and the free end of the rod of the adjusting bolt 10 is located in the corresponding positioning hole and abuts against the bottom of the positioning hole; in this way, when the heating shell 1 is placed between the bottom plate 4 and the glass kiln 11, the adjusting bolt 10 can be matched with the positioning hole to achieve installation and positioning, ensuring that the through hole is vertically connected to the inner hole of the heating shell 1, and can also limit the movement of the heating shell 1 on the bottom plate 4 during use of the device, which is beneficial to improving the reliability of the device.
[0036] See also Figure 1 A calendering mechanism 7 is provided below the heating shell 1, and the ratio of the vertical length of the heating shell 1 to the vertical distance from the feed port to the calendering point of the calendering mechanism 7 is 0.3-0.8; thus, by limiting the ratio of the two, the distance that the glass liquid 13 is heated and the distance that it is cooled before reaching the calendering mechanism 7 after heating are matched, thereby ensuring that the actual feed amount of the glass liquid 13 reaching the calendering mechanism 7 after the temperature of the heating structure is controlled is more consistent with the set feed amount.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.
Claims
1. A device for controlling the discharge amount, characterized in that: It includes a heating structure and a control structure. The heating structure includes a heating shell and a heating body. The heating shell is provided with an axially penetrating liquid flow channel. The heating body is arranged in the liquid flow channel. The control structure is electrically connected to the heating body. The control structure includes a controller, a power regulator and a temperature sensor. The sensing end of the temperature sensor is located in the heating shell. The heating body is provided with temperature sensors on both sides of the heating shell in the axial direction so as to obtain temperature data before and after the glass liquid is heated. The controller is electrically connected to the power regulator and the temperature sensor respectively. The power regulator is electrically connected to the heating body so as to control the output power of the power regulator in combination with the temperature data so as to adjust the heating value of the heating body.
2. The device for controlling the discharge amount according to claim 1, characterized in that: The heating shell is composed of at least two axially split shells which are detachably connected.
3. The device for controlling the discharge amount according to claim 2, characterized in that: The axially split shells are tightly connected together through clamps.
4. The device for controlling the discharge amount according to claim 1, characterized in that: The heating body is an electric heating wire which spirally extends along the axial direction of the heating shell, and both ends of the electric heating wire face the same shell and extend out of the heating shell to be electrically connected with the control structure.
5. The device for controlling the discharge amount according to claim 4, characterized in that: An annular installation groove matching the spiral size of the heating body is provided on the inner wall of the liquid flow channel, and the heating body is located in the annular installation groove.
6. A glass furnace for controlling the discharge amount, characterized in that: The glass kiln includes a device for controlling the discharge amount as described in any one of claims 1 to 5, a feed port is provided at the bottom of the glass kiln, a heating shell is installed below the glass kiln, the liquid flow channel is opposite to the feed port, and the upper end of the heating shell is in close contact with the refractory bricks around the feed port.
7. A glass furnace for controlling the discharge amount according to claim 6, characterized in that: The heating shell is installed under the glass kiln through a bracket. The bracket includes a bottom plate and a bracket. The bottom plate is provided with a through hole. The heating shell is located between the glass kiln and the bottom plate. The lower end of the heating shell abuts against the bottom plate, and the liquid flow channel is connected to the through hole. The bracket is located outside the heating shell and connected between the glass kiln and the bottom plate.
8. A glass furnace for controlling the discharge amount according to claim 7, characterized in that: A plurality of adjusting screw holes are vertically penetrated on the bottom plate, and the plurality of adjusting screw holes are arranged along the circumference of the heating shell and face the lower end of the heating shell. The inner threads of the adjusting screw holes are connected with adjusting bolts, and the free ends of the rods of the adjusting bolts abut against and support the heating shell.
9. A glass furnace for controlling the discharge amount according to claim 8, characterized in that: The lower end of the heating shell is vertically provided with a plurality of positioning holes which correspond to the plurality of adjusting screw holes one by one and have matching diameters. The free end of the rod of the adjusting bolt is located in the corresponding positioning hole and abuts against the bottom of the positioning hole.
10. A glass furnace for controlling the discharge amount according to claim 6, characterized in that: A calendering mechanism is arranged below the heating shell, and the ratio of the vertical length of the heating shell to the vertical distance from the feed port to the calendering mechanism is 0.3-0.8.