Equipment for ceramsite production

Abstract

The present invention discloses a device for producing ceramsite, which includes a stirring device, a granulating device, and a baking device connected in sequence, and includes a plurality of storage devices. The stirring device includes an upper stirrer and a lower stirrer connected in an up-and-down distribution. The plurality of storage devices are respectively connected to the upper stirrer through screw weighing scales, and a spraying device is provided between the upper stirrer and the lower stirrer or inside the lower stirrer. The present invention provides a device for producing ceramsite that ensures uniform mixing of various materials and improves the quality of ceramsite.

Description

Technical Field

[0001] The present invention relates to an equipment for producing ceramsite, belonging to the technical field of ceramsite production equipment. Background Art

[0002] As a by-product of waste incineration, fly ash contains relatively high amounts of heavy metals and dioxin-like substances, so it is classified as hazardous waste. However, fly ash also contains components with potential utilization value such as Al2O3, SiO2, K2O, Na2O, and CaO. After being treated by washing with water, etc., these components can be mixed with an appropriate amount of other materials (such as sludge, shale, etc.) in a certain proportion and then made into ceramsite through granulation and sintering for use in construction and horticulture. Currently, the prepared materials are usually directly stirred after adding water, and the prepared materials are each put into a mixer. After adding water, each component is likely to coagulate together, and it is impossible to achieve good uniformity during subsequent stirring, thus affecting the quality of the ceramsite. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an equipment for producing ceramsite, which can ensure the uniform mixing of each material and improve the quality of the ceramsite, and can solve the deficiencies of the prior art.

[0004] The technical solution of the present invention is: an equipment for producing ceramsite, including a stirring device, a granulating device, and a baking device connected in sequence, including several storage devices. The stirring device includes an upper stirrer and a lower stirrer connected in an up-and-down distribution. Several storage devices are respectively connected to the upper stirrer through screw weighing scales, and a spraying device is provided between the upper stirrer and the lower stirrer or inside the lower stirrer.

[0005] Further, the upper stirrer includes a cylinder with an open top and a cover body installed to cooperate with the top of the cylinder. The bottom of the cylinder is connected to the lower stirrer through a connecting pipe, and a valve is provided on the connecting pipe. A driver and a rotating shaft driven by the driver are provided on the cover body. The rotating shaft passes through the cover body and vertically extends into the cylinder, and stirring blades and blades are provided on the rotating shaft.

[0006] Further, several fixed blades are provided on the inner wall of the cylinder.

[0007] Further, the fixed blades are L-shaped, including a longitudinal part that fits the inner wall of the cylinder and a transverse part that extends towards the axis of the cylinder. The two sides of the transverse part are serrated.

[0008] Further, the blades are installed at the bottom of the rotating shaft, and there is a gap between the blades and the transverse part of the fixed blades.

[0009] Further, the blade is slidably connected to the rotating shaft, and a limiting mechanism is provided between the blade and the rotating shaft. Through the cooperation of the limiting mechanism, the blade can slide relative to the rotating shaft and rotate with the rotating shaft. An elastic reset mechanism is provided on the rotating shaft and cooperates with the blade. The elastic reset mechanism includes an elastic member that applies a force to the blade. The blade is in an initial state with a specific gap from the fixed blade under the limitation of the limiting mechanism and the elastic reset mechanism. When the blade slides relative to the rotating shaft under an external force, the gap becomes larger. At this time, the elastic member further deforms to generate an elastic force. After removing the external force, the elastic force of the elastic member resets the blade to the initial state.

[0010] Further, the elastic reset mechanism includes a limiting member installed on the rotating shaft. The elastic member is a spring, and the spring is sleeved on the rotating shaft between the limiting member and the blade. The blade has a collar for sleeving the spring, and the limiting member is provided with a sliding connection and cooperation with the collar.

[0011] Further, the limiting member is threadedly connected to the rotating shaft, and the position of the limiting member is changed by rotation to adjust the elastic force of the elastic member on the blade.

[0012] Further, the spraying device includes a pipe with a chamber inside. The bottom of the connecting pipe and the inlet of the lower stirrer are located inside the chamber of the pipe. The bottom of the connecting pipe is in the shape of a funnel with a large top and a small bottom, and the inlet of the lower stirrer is in an outward-expanded shape, forming an inclined annular flow channel with the bottom of the connecting pipe.

[0013] Further, the lower stirrer is a horizontal stirrer.

[0014] By implementing the present invention, the materials for making ceramsite are respectively stored in the storage device. The materials are transported and weighed by a spiral weigher so that the materials enter the upper stirrer in a certain proportion. The upper stirrer performs dry stirring to make them evenly mixed. The stirred and mixed materials enter the lower stirrer. During the process of entering the lower stirrer, the spraying device sprays the mixed materials to make the materials have a certain viscosity. Subsequently, the materials are further fully stirred and mixed in the lower stirrer and then enter the granulator for granulation. The formed semi-finished ceramsite enters the baking device for sintering to complete the firing of the ceramsite. The dry materials are conducive to accurate proportioning and mixing. After spraying, the materials have a certain viscosity and then are wet-stirred by the lower stirrer to be fully and evenly mixed. The dry stirring and wet stirring can be carried out simultaneously without affecting the production efficiency, realizing the accurate proportioning and uniform mixing of various materials and improving the quality of the ceramsite. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the present invention;

[0016] Figure 2 is a schematic diagram of the stirring device;

[0017] Figure 3 is Figure 2Enlarged view of part B;

[0018] Figure 4 Schematic diagram inside the upper stirrer;

[0019] Figure 5 Cross-sectional view of the upper stirrer;

[0020] Figure 6 is Figure 5 Enlarged view of part A of

[0021] Shown in the figure: pelletizer 1; rotary kiln 2; storage bin 3; upper stirrer 4; lower stirrer 5; screw weigher 6; spraying device 7; cylinder body 8; cover body 9; rotating shaft 10; stirring blade 11; blade 12; fixed blade 13; horizontal part 14; connecting pipe 15; sliding groove 16; elastic pad 17; limiting part 18; spring 19; collar 20; pipeline 21; annular flow channel 22; annular groove 23; connecting pin 24. Specific implementation mode

[0022] Embodiment of the present invention: As Figures 1 to 6 shown, a device for producing ceramsite includes a stirring device, a pelletizer 1, and a rotary kiln 2 that are connected in sequence, and includes a number of storage bins 3. The stirring device includes an upper stirrer 4 and a lower stirrer 5 that are connected and distributed up and down. The number of storage bins 3 are respectively connected to the upper stirrer 4 through screw weighers 6. A spraying device 7 is provided between the upper stirrer 4 and the lower stirrer 5 or inside the lower stirrer 5. Each storage bin 3 stores materials (fly ash, sludge, etc.) for making ceramsite. Through the screw weigher 6, the materials are transported and weighed so that the materials enter the upper stirrer 4 in a certain proportion. The upper stirrer 4 performs dry stirring to make them evenly mixed. The materials after dry stirring and mixing then enter the lower stirrer 5. During the process of entering the lower stirrer 5, the spraying device 7 sprays the mixed materials to make the materials have a certain viscosity. Then, they are fully stirred and mixed in the lower stirrer 5 and then transported to the pelletizer 1 for pelletizing. The formed ceramsite semi-finished products then enter the rotary kiln 2 for sintering to complete the firing of the ceramsite. The dry materials are conducive to accurate proportioning and mixing. After spraying, the materials have a certain viscosity and then are wet-stirred in the lower stirrer 5 and fully and evenly mixed. Dry stirring and wet stirring can be carried out simultaneously without affecting the production efficiency, realizing accurate proportioning and uniform mixing of each material and improving the quality of ceramsite.

[0023] As a preference, the upper stirrer 4 includes a cylinder body 8 with an open top and a cover body 9 installed and fitted to the top of the cylinder body 8. The bottom of the cylinder body 8 is connected to the lower stirrer 5 through a connecting pipe 15, and a valve is provided on the connecting pipe 15. A motor and a rotating shaft 10 driven by the motor to rotate are provided on the cover body 9. The rotating shaft 10 passes through the cover body 9 and vertically extends into the cylinder body 8. Stirring blades 11 and blades 12 are arranged on the rotating shaft 10. Each material is conveyed and weighed by a screw weigher 6 and then enters the cylinder body 8 of the upper stirrer 4. The motor drives the rotating shaft 10 to rotate, and the stirring blades 11 and the blades 12 on the rotating shaft 10 rotate accordingly. The blades 12 further crush the material, and the stirring blades 11 perform stirring and mixing to achieve precise proportioning and uniform mixing. After the mixing is completed, the valve on the connecting pipe 15 is opened to discharge it to the lower stirrer 5. To improve the crushing effect, a number of fixed blades 13 are provided on the inner wall of the cylinder body 8. The fixed blades 13 are L-shaped, including a longitudinal part fitting to the inner wall of the cylinder body 8 and a transverse part 14 extending towards the axis of the cylinder body 8. Both sides of the transverse part 14 are serrated. When the stirring blades 11 stir, the material is further crushed when passing through the fixed blades 13, improving the crushing effect.

[0024] As a preference, the fixed blades 13 are installed at the bottom of the rotating shaft 10, and there is a gap between the blades 12 and the transverse part 14 of the fixed blades 13. When the blades 12 rotate, they cooperate with the transverse part 14 of the fixed blades 13 to shear the material, further improving the crushing effect on the material and facilitating uniform mixing.

[0025] As a preference, the blade 12 is slidably connected to the rotating shaft 10, and a matching limiting mechanism is provided between the blade 12 and the rotating shaft 10. The limiting mechanism is a chute 16 opened along the length direction on the rotating shaft 10. A connecting pin 24 slidably engaged with the chute 16 is provided on the blade 12. The blade 12 is sleeved on the rotating shaft 10, and the connecting pin 24 passes through the blade 12 and extends into the chute 16, enabling the blade 12 to slide up and down along the rotating shaft 10 and rotate together with the rotating shaft 10. An elastic reset mechanism cooperating with the blade 12 is provided on the rotating shaft 10. The elastic reset mechanism includes an elastic member applying a force to the blade 12. Specifically, the bottom of the rotating shaft is stepped. The blade 12 is slidably connected to the thin end. An elastic pad 17 is sleeved on the rotating shaft 10 between the upper side of the blade 12 and the stepped surface. Grooves slidably connected to the elastic pad 17 are provided on both the stepped surface and the upper side of the blade 12. A limiting member 18 is provided at the end of the rotating shaft 10. The elastic member is located between the limiting member 18 and the lower side of the blade 12. The elastic member applies an upward force to the blade 12. The elastic pad 17 resists and limits the upper end of the blade 12, making the blade 12 in an initial state with a specific gap from the fixed blade 13. When a relatively large material enters the gap between the blade 12 and the fixed blade 13, a downward force will be applied to the blade 12. At this time, the blade 12 slides down, the elastic member is compressed, the gap becomes larger to allow it to pass smoothly, and then the elastic member resets and pushes the blade 12 to move up and reset, preventing the blade 12 from getting stuck. The chute on the upper side of the blade 12 and the stepped surface has a certain depth. When the blade 12 slides down, both ends of the elastic pad 17 are always located in the grooves on the upper side of the blade 12 and the stepped surface without detaching. The elastic pad 17 resists and cooperates with the blade 12 to achieve soft contact, reducing damage and preventing materials from entering so that the blade 12 can be reset smoothly.

[0026] As a preference, the elastic member is a spring 19. The spring 19 is sleeved on the rotating shaft between the limiting member 18 and the blade 12. The blade 12 has a collar 20 for sleeving the spring 19. A ring groove 23 cooperating with the collar 20 is provided on the limiting member 18. The lower end of the collar 20 is located in the ring groove 23. When the blade 12 slides and resets on the rotating shaft, the collar 20 slides in the ring groove 23. The collar 20 functions to block materials and prevent materials from entering and causing the spring 19 to fail.

[0027] As a preference, the limiting member 18 is threadedly connected to the rotating shaft 10. By adjusting the height position of the limiting member 18, the initial elastic force of the spring 19 on the blade 12 can be adjusted, and the force required for the blade 12 to slide down can be adjusted as needed.

[0028] As a preference, the spraying device includes a pipeline 21 with a chamber inside. The bottom of the connecting pipe and the inlet of the lower stirrer 5 are located inside the chamber of the pipeline 21. The bottom of the connecting pipe 15 is in the shape of a funnel with a larger top and a smaller bottom, and the inlet of the lower stirrer 5 is in an outward-expanded shape, forming an inclined annular flow channel 22 with the bottom of the connecting pipe 15. The pipeline 21 is communicated with the water delivery pipeline. The material in the upper stirrer 4 falls into the inlet of the lower stirrer 5 through the connecting pipe and then enters the lower stirrer 5. During this process, the water delivery pipeline conveys water into the chamber of the pipeline 21 at a certain flow rate, and sprays water on the falling material in a circumferential direction through the inclined annular flow channel 22, so that the water and the material are evenly mixed and then fall into the lower stirrer 5, realizing uniform water mixing and preventing the material from generating dust when falling into the lower stirrer 5.

[0029] As a preference, the lower stirrer 5 is a horizontal stirrer, which is more conducive to uniform wet mixing.

Claims

1. An equipment for producing ceramsite, comprising a stirring device, a granulating device and a baking device which are connected in sequence, characterized in that: It includes a number of material storage devices. The stirring device includes an upper stirrer and a lower stirrer which are connected and distributed vertically. The several material storage devices are respectively connected to the upper stirrer through screw weighing scales. A spraying device is arranged between the upper stirrer and the lower stirrer. The upper stirrer includes a cylinder body with an open top and a cover body installed in cooperation with the top of the cylinder body. The bottom of the cylinder body is connected to the lower stirrer through a connecting pipe, and a valve is arranged on the connecting pipe. A driver and a rotating shaft driven by the driver are arranged on the cover body. The rotating shaft passes through the cover body and vertically extends into the cylinder body. Stirring blades and blades are arranged on the rotating shaft. A number of fixed blades are arranged on the inner wall of the cylinder body. The blade is slidably connected to the rotating shaft, and a matching limiting mechanism is arranged between the blade and the rotating shaft. Through the cooperation of the limiting mechanism, the blade can slide relative to the rotating shaft and rotate together with the rotating shaft. An elastic reset mechanism cooperating with the blade is arranged on the rotating shaft. The elastic reset mechanism includes an elastic member that applies a force to the blade. The blade is in an initial state with a specific gap from the fixed blade under the limitation of the limiting mechanism and the elastic reset mechanism. When the blade slides relative to the rotating shaft under an external force to make the gap larger, the elastic member further deforms to generate an elastic force. After removing the external force, the elastic force of the elastic member makes the blade reset to the initial state. The spraying device includes a pipe with a chamber inside. The bottom of the connecting pipe and the inlet of the lower stirrer are located in the chamber of the pipe. The bottom of the connecting pipe is in the shape of a funnel with a large top and a small bottom. The inlet of the lower stirrer is in an outward-expanded shape, forming an inclined annular flow channel with the bottom of the connecting pipe.

2. The equipment for ceramsite production according to claim 1, characterized in that: The fixed blade is L-shaped, including a longitudinal part that fits the inner wall of the cylinder body and a transverse part that extends towards the axis of the cylinder body. The two sides of the transverse part are serrated.

3. The equipment for ceramsite production according to claim 2, characterized in that: The blade is installed at the bottom of the rotating shaft, and there is a gap between the blade and the transverse part of the fixed blade.

4. The equipment for ceramsite production according to claim 1, characterized in that: The elastic reset mechanism includes a limiting member installed on the rotating shaft. The elastic member is a spring. The spring is sleeved on the rotating shaft between the limiting member and the blade. The blade has a collar for sleeving the spring. The limiting member is provided with a sliding connection and cooperation with the collar.

5. The equipment for ceramsite production according to claim 4, characterized in that: The limiting member is threadedly connected to the rotating shaft, and the position of the limiting member is changed by rotation to adjust the elastic force of the elastic member on the blade.

6. The equipment for ceramsite production according to claim 1, characterized in that: The lower stirrer is a horizontal stirrer.

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