Automatic batching equipment for producing magnesium refractory bricks for cement kiln

Abstract

The utility model relates to automatic batching equipment for producing magnesium refractory bricks for a cement kiln, which comprises a vertical batching tank and a stirring mechanism, a feed port is arranged at the top of the vertical batching tank, and the technical key points are that a plurality of longitudinal telescopic cylinders are uniformly arranged at the edge of the top surface of the feed port, and the top ends of cylinder rods of the longitudinal telescopic cylinders are jointly connected with a support flange; a telescopic flexible connecting cylinder is connected between the inner edge of the supporting flange and the inner edge of the feeding port, a plurality of weighing sensors are evenly fixed to the upper surface of the supporting flange, the tops of the weighing sensors jointly support a material receiving hopper, and a feeding pipe is fixed to the lower end of the material receiving hopper. The feeding pipe is located in the telescopic flexible connecting cylinder, a control valve is arranged at the lower end of the feeding pipe, a liftable material distributing conical plate is suspended in the material receiving hopper, and an annular flexible check ring is fixed to the upper edge of the material receiving hopper. The equipment further ensures the feeding precision, and meanwhile, powder pretreatment is realized before feeding, and the batching uniformity is improved, so that the product quality is ensured, and the batching efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of refractory brick production equipment, specifically to an automatic batching equipment for producing magnesia refractory bricks for cement kilns. Background Technology

[0002] Magnesia refractory bricks are refractory materials made primarily of magnesia through a high-temperature sintering process, and are widely used in high-temperature cement kilns. The magnesia raw materials include light-burned magnesia powder, fused magnesia, and additives such as graphite and dolomite. The manufacturing process includes crushing, grinding, batching, molding, and sintering.

[0003] CN 220741645 U discloses an automatic batching device for refractory brick production, comprising a batching tank, a feed pipe extending through the top surface of the batching tank, a first spring vertically mounted on the top surface of the feed pipe, and a support plate mounted on the top of the first spring. By using an electric telescopic rod, a first spring, a non-woven fabric sleeve, a support plate, and clearance holes in coordination, the device facilitates accurate entry of refractory brick raw materials into the batching tank during batching, preventing material spillage. During batching, the operator moves the batching tank directly below the batching bin, then activates the electric telescopic rod, causing the support plate to move upwards. This stretches the first spring, causing the non-woven fabric sleeve to move upwards, allowing the support plate to fit over the outside of the batching bin's outlet. Thus, during subsequent discharge, the refractory brick raw materials directly enter the batching tank through the non-woven fabric sleeve, preventing contact with the external environment and reducing material spillage. However, the following problems still exist: 1. During batching, the discharge port of the batching silo passes through the relief hole and squeezes the sealing plate, and the raw materials in the batching silo enter the batching tank. The feeding accuracy of this feeding method depends on the discharge valve of the batching silo. When the discharge accuracy of the discharge valve decreases, it is easy to cause inaccurate feeding and affect product quality; 2. The accumulation of powder in the batching silo is prone to problems such as clumping, which is not conducive to uniform batching after feeding. Utility Model Content

[0004] The purpose of this invention is to provide an automatic batching equipment for the production of magnesia refractory bricks for cement kilns that has a reasonable structure and reliable operation, thereby solving the above-mentioned problems, further ensuring feeding accuracy, and simultaneously performing powder pretreatment before feeding to improve batching uniformity, thus ensuring product quality and improving batching efficiency.

[0005] The technical solution of this utility model is:

[0006] An automatic batching device for producing magnesia refractory bricks for cement kilns includes a vertical batching tank and a stirring mechanism disposed within the vertical batching tank. The vertical batching tank has a feed inlet at its top. The key technical features are: multiple longitudinal telescopic cylinders are evenly distributed along the top edge of the feed inlet; the top of the cylinder rods of each longitudinal telescopic cylinder is connected to a supporting flange; a retractable flexible connecting cylinder is connected between the inner edge of the supporting flange and the inner edge of the feed inlet; multiple weighing sensors are evenly fixed to the upper surface of the supporting flange; the tops of each weighing sensor collectively support a receiving hopper; a feed pipe is fixed to the lower end of the receiving hopper; the feed pipe is located inside the retractable flexible connecting cylinder and has a control valve at its lower end; a liftable distributing cone plate is suspended in the receiving hopper; and an annular flexible retaining ring is fixed to the upper edge of the receiving hopper.

[0007] The aforementioned automatic batching equipment for producing magnesia refractory bricks for cement kilns has a dust-proof annular baffle between the lower outer surface of the receiving hopper and the inner edge of the supporting flange.

[0008] The above-mentioned automatic batching equipment for the production of magnesia refractory bricks in cement kilns has a supporting rib built into the lower part of the receiving hopper, and a lifting cylinder is provided on the supporting rib. The top of the cylinder rod of the lifting cylinder is connected and fixed to the center of the inner top surface of the lifting and distributing cone plate.

[0009] In the aforementioned automatic batching equipment for producing magnesia refractory bricks for cement kilns, the inner diameter of the annular flexible retaining ring is smaller than the outer diameter of the discharge port of the batching silo.

[0010] In the aforementioned automatic batching equipment for the production of magnesia refractory bricks in cement kilns, the center lines of the receiving hopper, supporting flange, feed pipe, telescopic flexible connecting cylinder, and feed inlet coincide.

[0011] The automatic batching equipment for producing magnesia refractory bricks for cement kilns described above has a vertical mixing paddle as the mixing mechanism, and a mixing motor connected to the vertical mixing paddle is provided on the top of the vertical batching tank.

[0012] The aforementioned automatic batching equipment for producing magnesia refractory bricks for cement kilns has a vertical batching tank with a cone-shaped lower part and a discharge port at its lower end. The lower end of the discharge port is connected to the inlet of a horizontal screw conveyor, and a discharge valve is provided at the discharge port.

[0013] The beneficial effects of this utility model are:

[0014] 1. During material receiving, the longitudinal telescopic cylinder pushes the support flange upward, causing the upper edge of the receiving hopper to approach the discharge port of the batching silo and surround the lower outer side of the discharge port with an annular flexible retaining ring. When the discharge valve of the batching silo opens to feed material into the receiving hopper, it is intercepted by the liftable material distribution cone plate. After feeding is completed, the discharge valve of the batching silo closes, and the liftable material distribution cone plate moves back and forth in small intervals in the vertical direction, thereby causing the lower edge of the liftable material distribution cone plate to open or close repeatedly. During this process, the agglomerated powder is crushed. During the vibration, the powder enters the feed pipe. Finally, the control valve is opened, and all the powder enters the vertical batching tank through the feed port. This utility model realizes the pretreatment of agglomerated powder, thereby improving the uniformity of batching, ensuring product quality, and improving batching efficiency.

[0015] 2. Using various weighing sensors, the powder entering the receiving hopper is re-weighed. When it is detected that too much powder is being discharged from the discharge valve of the batching silo, the liftable distribution cone plate can be used to intercept the excess powder entering the feed pipe, thereby improving the feeding accuracy and ensuring product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of section A in the middle;

[0018] Figure 3 This is a schematic diagram of the lifting and lowering material distribution cone plate of this utility model rising.

[0019] In the diagram: 1. Mixing motor, 2. Vertical mixing paddle, 3. Vertical batching tank, 4. Discharge valve, 5. Horizontal screw conveyor, 6. Feed inlet, 7. Discharge outlet, 8. Annular flexible retaining ring, 9. Liftable distributing cone plate, 10. Lifting cylinder, 11. Support rib, 12. Receiving hopper, 13. Weighing sensor, 14. Dustproof annular retaining cylinder, 15. Support flange, 16. Telescopic flexible connecting cylinder, 17. Longitudinal telescopic cylinder, 18. Feed pipe, 19. Control valve. Detailed Implementation

[0020] The present invention will be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-3 As shown, the automatic batching equipment for producing magnesia refractory bricks for cement kilns includes a vertical batching tank 3 and a stirring mechanism located in the vertical batching tank 3.

[0022] The vertical batching tank 3 has a feed inlet 6 at its top. Multiple longitudinal telescopic cylinders 17 are evenly distributed along the top edge of the feed inlet 6. The top of the cylinder rod of each longitudinal telescopic cylinder 17 is connected to a supporting flange 15. A retractable flexible connecting cylinder 16 connects the inner edge of the supporting flange 15 to the inner edge of the feed inlet 6. Multiple weighing sensors 13 are evenly fixed to the upper surface of the supporting flange 15. The top of each weighing sensor 13 supports a receiving hopper 12. A feed pipe 18 is fixed to the lower end of the receiving hopper 12. The feed pipe 18 is located inside the retractable flexible connecting cylinder 16, and a control valve 19 is located at its lower end. A liftable distributing cone 9 is suspended in the receiving hopper 12. An annular flexible retaining ring 8 is fixed to the upper edge of the receiving hopper 12. The inner diameter of the annular flexible retaining ring 8 is smaller than the outer diameter of the feed outlet 7 of the batching silo.

[0023] In this embodiment, a dust-proof annular baffle 14 is provided between the lower outer surface of the receiving hopper 12 and the inner edge of the supporting flange 15. A supporting rib 11 is built into the lower part of the receiving hopper 12, and a lifting cylinder 10 is provided on the supporting rib 11. The top end of the cylinder rod of the lifting cylinder 10 is connected and fixed to the center of the inner top surface of the liftable material distribution cone plate 9. The center lines of the receiving hopper 12, supporting flange 15, feed pipe 18, retractable flexible connecting cylinder 16, and feed inlet 6 coincide.

[0024] The stirring mechanism is a vertical stirring paddle 2, and the top of the vertical batching tank 3 is equipped with a stirring motor 1 connected to the vertical stirring paddle 2. The lower part of the vertical batching tank 3 is cone-shaped and has a discharge port at its lower end. The lower end of the discharge port is connected to the inlet of the horizontal screw conveyor 5, and a discharge valve 4 is provided at the discharge port.

[0025] Working principle:

[0026] 1. During operation, the vertical batching tank 3 is fixed on the movable base (omitted in the figure).

[0027] 2. The vertical batching tank 3 moves to the lower part of the batching silo, and each longitudinal telescopic cylinder 17 moves synchronously, pushing the support flange 15 to rise, driving the upper edge of the receiving hopper 12 to approach the discharge port 7 of the batching silo, and causing the annular flexible retaining ring 8 to surround the lower outer side of the discharge port 7 to prevent dust from overflowing during feeding.

[0028] 3. The discharge valve of the batching silo opens to feed material into the receiving hopper 12. The powder falls into the receiving hopper 12 and is intercepted by the liftable distribution cone 9. After feeding is completed, the discharge valve of the batching silo closes, and the powder is distributed around the liftable distribution cone 9. At this time, each weighing sensor 13 re-weighs the powder entering the receiving hopper 12 to check whether it is excessive.

[0029] 4. Start the reciprocating motion of the lifting cylinder 10, and the lifting and distributing cone plate 9 reciprocates at small intervals in the vertical direction, thereby causing the lower edge of the lifting and distributing cone plate 9 to open or close repeatedly. During this process, the clumps of powder are crushed. During the vibration, the powder enters the feed pipe 18. Finally, the control valve 19 is opened, and all the powder enters the vertical batching tank 3 through the feed port 6.

[0030] 2. When the weighing sensor 13 detects that the discharge valve of the batching silo is discharging too much material, the lifting and lowering distribution cone plate 9 can be used to intercept the excess powder material into the feed pipe 18, thereby improving the feeding accuracy.

[0031] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. An automatic batching device for producing magnesia refractory bricks for cement kilns, comprising a vertical batching tank and a stirring mechanism disposed within the vertical batching tank, wherein the top of the vertical batching tank is provided with a feed inlet, characterized in that: Multiple longitudinal telescopic cylinders are evenly arranged on the top edge of the feed inlet. The top of the cylinder rod of each longitudinal telescopic cylinder is connected to a support flange. A telescopic flexible connecting cylinder is connected between the inner edge of the support flange and the inner edge of the feed inlet. Multiple weighing sensors are evenly fixed on the upper surface of the support flange. The top of each weighing sensor supports a receiving hopper. A feed pipe is fixed at the lower end of the receiving hopper. The feed pipe is located inside the telescopic flexible connecting cylinder and has a control valve at its lower end. A liftable distributing cone plate is suspended in the receiving hopper. An annular flexible retaining ring is fixed on the upper edge of the receiving hopper.

2. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: A dust-proof annular baffle is provided between the lower outer surface of the receiving hopper and the inner edge of the supporting flange.

3. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: The lower part of the receiving hopper has a built-in support rib, and the support rib is equipped with a lifting cylinder. The top of the cylinder rod of the lifting cylinder is connected and fixed to the center of the inner top surface of the lifting and distributing cone plate.

4. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: The inner diameter of the annular flexible retaining ring is smaller than the outer diameter of the feed inlet of the batching hopper.

5. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: The center lines of the receiving hopper, supporting flange, feed pipe, retractable flexible connecting cylinder, and feed inlet are aligned.

6. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: The stirring mechanism is a vertical stirring paddle, and the top of the vertical batching tank is equipped with a stirring motor connected to the vertical stirring paddle.

7. The automatic batching equipment for producing magnesia refractory bricks for cement kilns according to claim 1, characterized in that: The lower part of the vertical batching tank is cone-shaped and has a discharge port at its lower end. The lower end of the discharge port is connected to the inlet of the horizontal screw conveyor, and a discharge valve is provided at the discharge port.

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