Leak-proof kiln spiral feeder

Abstract

Disclosed in the present invention is a leak-proof kiln spiral feeder. A gear-type rotary sealing structure composed of a sealing baffle and blades is mounted on a spiral shaft. In this way, a mixed material can be prevented from coming into contact with the portion of a closed end through which the spiral shaft passes, so as to solve the problem of leakage, and the blades rotate to stir the mixed material in a feeding pipe at the closed end to prevent same from caking, so as to facilitate the pushing and carrying away of the mixed material by a spiral blade on the spiral shaft, such that blockage of the feeding pipe caused by excessive moisture content in the mixed material can be avoided. In addition, when the spiral shaft rotates, the blades lift the mixed material up to a certain height, and then the mixed material slides forward along a conical surface, so that auxiliary pushing for the mixed material is realized, and the mixed material slides down to the spiral blade of the spiral shaft to facilitate continuous forward pushing. Furthermore, an opening is provided at the bottom of the feeding pipe and is in communication with a section of circular chute, and a manual ball valve is mounted in the circular chute, so as to facilitate sampling to check the impact of the ratio of moisture in the mixed material on heat consumption and other process problems, thus achieving a certain function of control over monitoring of the process.

Description

A leakage-proof kiln spiral feeder Technical Field

[0001] The invention belongs to the technical field of kiln feeding, and in particular relates to a leakage-proof kiln spiral feeding machine. Background Art

[0002] The screw feeder is a key equipment for feeding the kiln. The screw feeder includes a feed pipe, one end of which extends into the kiln, and the other end is closed and located outside the kiln. A hopper is provided on the feed pipe near the closed end. A spiral shaft of equal length is provided in the feed pipe, and the shaft of the spiral shaft extends out of the closed end to connect to the driving device. When the driving device drives the spiral shaft to rotate, the spiral blades on the spiral shaft push the material in the feed pipe into the kiln.

[0003] In glass production, a screw feeder conveys a mixture consisting of cullet and raw materials. To prevent some important raw material components with smaller particle sizes from leaking out from the fitting point between the screw shaft and the closed end, a sealing structure is generally provided at the fitting point. For example, Chinese patent CN202220977480.7 discloses a glass powder screw feeder. This solution provides an oil seal at the fitting point between the screw shaft and the closed end to prevent the raw materials from leaking out. However, whether the sealing structure adopts an oil seal or other sealing ring, it will come into contact with the mixed material. After a period of use, it is easy to fail due to erosion and wear of the mixed material, resulting in leakage at the fitting point, which has a great impact on the production quality of the glass.

[0004] Therefore, it is necessary to design a furnace spiral feeder with better sealing reliability to avoid leakage and improve the stability of glass production quality. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a leakage-proof kiln spiral feeder to solve the technical problems of poor sealing reliability and easy leakage of the current spiral feeder, thereby achieving the effect of improving the stability of glass production quality.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A leakage-proof kiln spiral feeder comprises a feed pipe with an open end and a closed end, an axial hole passing through the closed end of the feed pipe, a spiral shaft being provided in the feed pipe, the shaft of the spiral shaft extending out of the feed pipe through the axial hole and connected to a driving member; a sealing partition is provided on the shaft of the spiral shaft in the feed pipe, the outer diameter of the sealing partition is larger than the diameter of the axial hole, the sealing partition is in sealing contact with the closed end, and a raised blade is provided on the side of the sealing partition facing the open end of the feed pipe.

[0008] Furthermore, the sealing baffle extends axially into a cylindrical shape, and an edge of one end of the sealing baffle facing the opening end of the feed pipe is connected to the outer side surface of the sealing baffle through a conical surface transition, and the blades are detachably arranged on the conical surface.

[0009] Furthermore, there are multiple blades that are evenly spaced apart in the circumferential direction.

[0010] Furthermore, the blade has an embedded portion at one end facing the conical surface, and a slot matching the embedded portion is provided on the conical surface, and the embedded portion is embedded in the slot.

[0011] Furthermore, outer edges of the blades protruding from the conical portion are flush with the outer circumferential side surface and the corresponding end surface of the sealing partition.

[0012] Furthermore, the blade is in the shape of a planar plate and the plane where the blade is located passes through the axis of the sealing partition.

[0013] Furthermore, the outer diameter of the sealing partition matches the inner diameter of the feeding pipe.

[0014] Furthermore, one end of the spiral sheet on the spiral shaft is close to the sealing partition.

[0015] Furthermore, the feeding pipe is horizontally arranged on the bracket, the bottom of the feeding pipe is connected to the feeding pipe, and a valve is provided on the feeding pipe.

[0016] Furthermore, a universal wheel with a brake is provided at the lower end of the bracket, and the driving component is a driving motor and is arranged on the bracket. The output end of the driving motor is synchronously connected to the spiral shaft extending out of the feeding pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The leakage-proof kiln spiral feeder of the utility model is equipped with a gear-type rotary sealing structure composed of a sealing partition and blades on the spiral shaft, which can prevent the mixed material from contacting the position where the spiral shaft passes through the closed end, thereby solving the leakage problem and being beneficial to improving the stability of process quality. The blades rotate to stir the mixed material at the closed end of the feed pipe to prevent it from agglomerating, making it easier for the spiral blades on the spiral shaft to push it away, thereby avoiding clogging of the feed pipe due to excessive water content in the mixed material.

[0019] 2. In the leakage-proof kiln spiral feeder of the utility model, when the spiral shaft rotates, the blades on the sealing partition will lift the mixed material at the closed end to a certain height, and then slide forward along the cone surface to achieve auxiliary pushing of the mixed material, and the mixed material will slide onto the spiral blades of the spiral shaft so that the spiral shaft can continue to push the mixed material forward.

[0020] 3. The leakage-proof kiln spiral feeder of the utility model has an opening below the feed pipe and is connected to a circular chute. A manual ball valve is installed on the circular chute, which is convenient for sampling and checking the influence of the moisture content in the mixed material on heat consumption and other process problems, and plays a certain control role in process monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic structural diagram of a spiral feeder for a kiln that prevents leakage of materials according to an embodiment;

[0022] FIG2 is a schematic structural diagram of the sealing partition according to the embodiment;

[0023] Among them, there are a feeding pipe 1, a closed end 11, an open end 12, a feeding pipe 13, a valve 14, a hopper 2, a spiral shaft 3, a shaft 31, a spiral sheet 32, a sealing partition 4, a blade 41, a conical surface 42, a bracket 5, a universal wheel with a brake 51, and a driving motor 6. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Example:

[0026] Please refer to Figures 1 and 2. A leak-proof kiln screw feeder includes a feed pipe 1 with an open end and a closed end. A hopper 2 is provided on the feed pipe 1 near the closed end 11. The closed end 11 of the feed pipe 1 is penetrated by an axial hole. A spiral shaft 3 is provided in the feed pipe 1. The shaft 31 of the spiral shaft 3 extends out of the feed pipe 1 through the axial hole and is connected to the driving member. A sealing partition 4 is provided on the shaft 31 of the spiral shaft 3 in the feed pipe 1. The hole wall of the sealing partition 4 and the shaft of the spiral shaft 3 are connected. 31 is sealed and fixedly connected, the outer diameter of the sealing partition 4 is larger than the diameter of the shaft hole, the sealing partition 4 is located between the spiral piece 32 of the spiral shaft 3 and the closed end 11, the sealing partition 4 is sealed against the closed end 11, and a raised blade 41 is provided on the side of the sealing partition 4 facing the open end of the feeding tube 1; in this embodiment, the sealing partition 4 is made of metal and is welded and fixed on the shaft 31 of the spiral shaft 3. During implementation, the sealing partition 4 can also be integrally formed on the spiral shaft 3.

[0027] In the leak-proof kiln spiral feeder of the present invention, the mixed material enters the feed pipe 1 from the hopper 2, and the mixed material is transported to the open end of the feed pipe 1 under the drive of the spiral shaft 3, and enters the next process. A sealing partition 4 is installed on the shaft 31 of the spiral shaft 3, and the sealing partition 4 is sealed against the closed end 11 of the feed pipe 1, thereby isolating the fitting part of the spiral shaft 3 and the closed end 11 from the mixed material in the feed pipe 1. This not only prevents the fitting part from being eroded and worn by the mixed material, which is beneficial to prolonging the service life of the sealing structure, but also increases the sealing fitting area of ​​the spiral shaft 3 and the feed pipe 1, which is beneficial to further improve the sealing performance, and can effectively solve the problem of poor sealing reliability and easy leakage of the current spiral feeder, and achieve the effect of improving the stability of glass production quality; in addition, the blades 41 on the sealing partition 4 rotate with the spiral shaft 3, which can stir the nearby mixed material to loosen it and avoid agglomeration, so that the spiral shaft 3 can push the mixed material.

[0028] Please refer to Figure 2. The sealing baffle 4 extends axially in a cylindrical shape. The edge of one end of the sealing baffle 4 facing the open end of the feeding pipe 1 is transitionally connected with the outer side surface of the sealing baffle 4 through a conical surface 42. The diameter of the sealing baffle 4 gradually decreases in the direction toward the open end of the feeding pipe 1, and the blade 41 is detachably arranged on the conical surface 42.

[0029] In this way, since the sealing partition 4 rotates with the spiral shaft 3, the blade 41 not only stirs the mixture, but also rotates and lifts part of the mixture upward. When the blade 41 rotates to a certain height, the lifted mixture will slide inward along the blade 41 to the conical surface 42 under the action of gravity, and then slide along the conical surface 42 toward the open end 12 of the feeding tube 1, thereby achieving the goal of pushing the mixture at the closed end 11 toward the open end while stirring, so as to cooperate with the spiral shaft 3 to push the mixture.

[0030] Since the blade 41 stirs the mixture, it wears out quickly. In order to extend the life of the blade 41, the blade 41 is made of metal, and the blade 41 and the sealing partition 4 are detachably connected so as to be replaced regularly. In this embodiment, the specific form of the detachable connection is as follows: the blade 41 has an embedded portion (not shown in the figure) at one end facing the conical surface 42, and a slot matching the embedded portion is provided on the conical surface 42, and the embedded portion is embedded in the slot.

[0031] Referring to Figure 2 , to enhance the mixing and propulsion of the mixed material, multiple blades 41 are provided, evenly spaced circumferentially. The outer edges of the blades 41 protruding from the conical surface 42 are flush with the outer circumferential side surfaces and corresponding end surfaces of the sealing baffle 4 . The protruding portion of the blades 41 is in the shape of a right triangle, with the hypotenuse corresponding to the length of the generatrix of the conical surface 42. This maximizes the size of the blades 41 within the maximum contour of the sealing baffle 4, enabling the blades 41 to better cooperate with the sealing baffle 4 in stirring and propulsion of the mixed material.

[0032] Among them, the blade 41 is in the shape of a flat plate and the plane on which it is located passes through the axis of the sealing partition 4; in this way, the flat-plate-shaped blade 41 is vertically arranged on the conical surface 42, which is conducive to the blade 41 lifting the mixed material when rotating with the sealing partition 4, and after rising to a certain height, the lifted mixed material falls more on the conical surface 42, so that the blade 41 cooperates with the sealing partition 4 to play a better role in pushing the mixed material.

[0033] Please refer to Figure 1. The outer diameter of the sealing partition 4 matches the inner diameter of the feeding tube 1. This not only helps the sealing partition 4 to separate the fitting of the spiral shaft 3 and the closed end 11 from the mixed material in the feeding tube 1, but also allows the blades 41 to approach the inner wall of the feeding tube 1, thereby improving the stirring range and stirring effect.

[0034] Please refer to Figure 1. One end of the spiral blade 32 on the spiral shaft 3 is close to the sealing partition 4. In this way, the distance between the sealing partition 4 and the spiral blade 32 on the spiral shaft 3 is smaller, which not only reduces the possibility of the mixed material being retained between the two, but also allows the mixed material sliding off the conical surface 42 to fall directly onto the spiral blade of the spiral shaft 3, so that the spiral shaft 3 can continue to push the mixed material forward.

[0035] In addition, during the glass production process, if the electricity and gas consumption of the kiln increases and the kiln process is not adjusted, the moisture content in the mixed material may be too high. If it is observed that the material layer in the kiln is deviated too much, the moisture content in the mixed material may be too low. In order to determine the moisture content of the mixed material in a timely manner, please refer to Figure 1. The feed pipe 1 is horizontally arranged on the bracket 5, and a material extraction pipe 13 is connected to the bottom of the feed pipe 1. The end of the material extraction pipe 13 extends out of the bracket 5, and a valve 14 is provided on the material extraction pipe 13. In this embodiment, the valve 14 is a manual ball valve. In this way, the valve 14 can be opened at any time for sampling and testing, and the moisture content of the mixed material can be adjusted in time to reduce energy consumption and heat consumption, quickly restore the process, and stabilize production.

[0036] Please refer to Figure 1. In order to facilitate the fixed operation and mobile maintenance of the kiln screw feeder, a universal wheel 51 with a brake is provided at the lower end of the bracket 5. The driving part adopts a driving motor 6 and is arranged on the bracket 5. The output end of the driving motor 6 is connected to the spiral shaft 3 extending out of the sealed end of the feed pipe 1 through a coupling for synchronous rotation; the kiln screw feeder can be moved out of the kiln through the universal wheel 51 with a brake, and then the coupling can be disconnected to pull the spiral shaft 3 out of the open end 12 of the feed pipe 1, and the blades 41 on the sealing partition 4 can be replaced.

[0037] The spiral feeder for kiln that prevents leakage of materials of the present invention is equipped with a gear-type rotary sealing structure composed of a sealing partition 4 and a blade 41 on the spiral shaft 3. On the one hand, it can prevent the mixed material from contacting the position where the spiral shaft 3 passes through the closed end 11, thereby solving the problem of leakage and being beneficial to improving the stability of process quality. The blade 41 rotates and stirs the mixed material at the closed end 11 in the feed pipe 1 to prevent it from agglomerating, making it easier for the spiral piece 32 on the spiral shaft 3 to push it away, thereby avoiding clogging of the feed pipe 1 due to excessive water content in the mixed material. On the other hand, When the spiral shaft 3 rotates, the blades 41 on the sealing partition 4 will lift the mixed material at the closed end 11 to a certain height, and then slide forward along the conical surface 42 to achieve auxiliary pushing of the mixed material, and the mixed material will slide onto the spiral piece 32 of the spiral shaft 3, so that the spiral shaft 3 can continue to push the mixed material forward; in addition, an opening is set at the bottom of the feeding pipe 1 and connected to it. A material taking pipe is installed on the material taking pipe to facilitate sampling to check the influence of the moisture content in the mixed material on heat consumption and other process problems, which plays a certain control role in process monitoring.

[0038] The leakage-proof kiln spiral feeder of the present invention can not only effectively solve the leakage problem, but also loosen and propel the mixed material in the feeding pipe 1, thereby avoiding blockage. In addition, it is convenient for sampling, facilitates better tracking of process changes, maintains the stability of feeding and the quality of raw materials, and provides certain favorable conditions and guarantees for production.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the technical solutions. Those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present invention that do not depart from the purpose and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A leak-proof kiln screw feeder, characterized by: It comprises a feeding tube with one end open and the other end closed, an axial hole passing through the closed end of the feeding tube, a spiral shaft provided in the feeding tube, the shaft of the spiral shaft extending out of the feeding tube through the axial hole and connected to a driving member; a sealing partition is sleeved on the shaft of the spiral shaft in the feeding tube, the outer diameter of the sealing partition is larger than the diameter of the axial hole, the sealing partition is in sealing contact with the closed end, and a raised blade is provided on the side of the sealing partition facing the open end of the feeding tube.

2. The leak-proof kiln spiral feeder according to claim 1, characterized in that: The sealing partition extends axially into a cylindrical shape, and an edge of one end of the sealing partition facing the opening end of the feed pipe is connected with the outer side surface of the sealing partition through a conical surface transition, and the blades are detachably arranged on the conical surface.

3. The leak-proof kiln spiral feeder according to claim 2, characterized in that: There are multiple blades that are evenly spaced around the circumference.

4. The leak-proof kiln spiral feeder according to claim 2, characterized in that: One end of the blade facing the conical surface is provided with an embedding portion, the conical surface is provided with a slot matching the embedding portion, and the embedding portion is embedded in the slot.

5. The leak-proof kiln spiral feeder according to claim 4, characterized in that: The outer edges of the blades protruding from the conical surface portion are flush with the outer circumferential side surface and the corresponding end surface of the sealing partition.

6. The leak-proof kiln screw feeder according to claim 5, characterized in that: The blades are in the shape of flat plates and the plane where they are located passes through the axis of the sealing partition.

7. A leakage-proof kiln spiral feeder according to any one of claims 1 to 6, characterized in that: The outer diameter of the sealing plate matches the inner diameter of the feed tube.

8. The leakage-proof kiln spiral feeder according to claim 7, characterized in that: One end of the spiral sheet on the spiral shaft is close to the sealing partition.

9. The leakage-proof kiln spiral feeder according to claim 1, characterized in that: The feeding pipe is horizontally arranged on the bracket, the bottom of the feeding pipe is connected with a feeding pipe, and a valve is arranged on the feeding pipe.

10. The leakage-proof kiln spiral feeder according to claim 9, characterized in that: A universal wheel with a brake is provided at the lower end of the bracket. The driving component is a driving motor and is arranged on the bracket. The output end of the driving motor is synchronously rotated and connected with a spiral shaft extending out of the feeding pipe.

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