Box-type emission-free calcining equipment
By introducing an auxiliary calcination mechanism into the high-temperature box-type equipment, the problems of material accumulation and adhesion were solved, and uniform heating and efficient production of materials were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-31
AI Technical Summary
Materials in high-temperature box-type equipment tend to accumulate and stick together during heating, affecting heating uniformity and product quality.
An auxiliary calcination mechanism is adopted, including components such as rotating columns, circular plates, connecting rods, connectors, and shaking plates. The up-and-down movement of the shaking plates ensures that the material is evenly distributed and fully heated in the furnace. Combined with rock wool insulation, refractory bricks, and silicon carbide heating rods, the thermal efficiency and equipment life are improved.
It improves the uniformity of material heating, shortens heating time, increases production efficiency, and reduces energy consumption.
Smart Images
Figure CN224065907U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of calcination equipment, and in particular to box-type emission-free calcination equipment. Background Technology
[0002] Currently, electric heating high-temperature box-type equipment has become an ideal choice in the field of high-temperature treatment due to its advantages such as precise temperature control, rapid heating, cleanliness and environmental protection, simple operation, high safety, strong adaptability, energy efficiency, flexible design and long service life. High-temperature equipment that converts electrical energy into heat energy is widely used in industries such as ceramics, metallurgy, chemical industry and electronics.
[0003] With its advantages of convenient operation, strong applicability, uniform temperature, energy efficiency, high safety, convenient maintenance and automatic control, the bottom discharge high temperature box equipment has become an ideal choice in the field of high temperature processing, especially suitable for small block, granular and batch production needs.
[0004] However, when materials are heated in high-temperature box-type equipment, since most of the materials being heated are small blocks or granules, they tend to pile up during feeding, which affects the uniformity of heating. Furthermore, in a high-temperature environment, some materials may stick together or clump together, thus affecting the heating effect and product quality. Utility Model Content
[0005] To improve the problem of materials piling up together and sticking or clumping together, this application provides a box-type emission-free calcining equipment.
[0006] The box-type emission-free calcination equipment provided in this application adopts the following technical solution:
[0007] A box-type emission-free calcining device includes a combustion furnace. The outer surface of the combustion furnace is covered with a rock wool insulation layer and refractory bricks. The inner wall of the combustion furnace is covered with silicon carbide heating rods. A material gate is provided on the top surface of the combustion furnace. A support frame is provided on the bottom surface of the combustion furnace. A baffle is rotatably connected to the bottom surface of the combustion furnace. A bottom discharge cylinder is provided on the side of the support frame. A scale conveyor is provided on the bottom surface of the support frame. The box-type emission-free calcining device also includes a screw conveyor. A flue gas outlet is provided on the outer surface of the combustion furnace. A secondary combustion chamber is provided at the end of the flue gas outlet away from the combustion furnace. A flue gas inlet is provided between the secondary combustion chamber and the combustion furnace.
[0008] The combustion furnace is equipped with an auxiliary calcination mechanism to reduce calcination time.
[0009] By adopting the above technical solutions, the rock wool insulation layer is used to reduce heat loss, improve energy efficiency, and maintain a stable temperature inside the combustion furnace; the refractory bricks protect the inner wall of the combustion furnace from high-temperature damage, extend the service life of the equipment, and also help maintain the furnace temperature; the silicon carbide heating rods are used to provide an additional heat source and enhance the heating capacity of the combustion furnace; the screw conveyor is used to transport materials; the auxiliary calcination mechanism is used to reduce calcination time, improve calcination efficiency, reduce energy consumption, and shorten the production cycle by shaking the material.
[0010] Preferably, the auxiliary calcination mechanism includes a rotating column rotatably connected to the inner wall of the combustion furnace, and a circular plate is fixedly connected to one end of the rotating column away from the inner wall of the combustion furnace.
[0011] By adopting the above technical solution, the rotating column inside the combustion furnace provides power to make the circular plate rotate, providing a motion basis for the subsequent connecting rod and vibrating plate.
[0012] Preferably, a connecting rod is rotatably connected to the side of the circular plate away from the rotating column, and a connector is rotatably connected to the end of the connecting rod away from the circular plate.
[0013] By adopting the above technical solution, the connecting rod, as a transmission component, transmits the rotational motion of the circular plate to the connector, while allowing a certain angle change to adapt to the relative positions between different components.
[0014] Preferably, an auxiliary cylinder is fixedly connected to the end of the connector away from the connecting rod, and a shaking plate is fixedly connected to the end of the auxiliary cylinder away from the connector.
[0015] By adopting the above technical solution, when the circular plate rotates, the vibrating plate will also vibrate up and down through the transmission of the connecting rod and the connecting head. This helps the material to be evenly distributed and heated more fully in the combustion furnace.
[0016] Preferably, a support plate is fixedly connected to the inner wall of the combustion furnace, an auxiliary cylinder is fixedly connected to one end of the support plate, and a return spring is fixedly connected inside the auxiliary cylinder.
[0017] By adopting the above technical solution, the support plate provides support for the auxiliary cylinder, so that it can be stably connected inside the combustion furnace. The auxiliary cylinder is used to guide the movement of the shaking plate, so that it will not tilt when it shakes up and down. When the shaking plate is moved by external force, the reset spring provides a restoring force, so that the shaking plate can return to its original position, ensuring the stability and continuity of the movement.
[0018] Preferably, the vibrating plate has a circular hole inside, and a rotating column is rotatably connected inside the vibrating plate.
[0019] By adopting the above technical solution, the first round hole is used to facilitate the discharge of the material from the calcination furnace after calcination, and the second rotating column provides kinetic energy for the extension and retraction of the telescopic plate.
[0020] Preferably, a telescopic plate is fixedly connected to the outer surface of the rotating column II, and a circular hole II is formed on the outer surface of the telescopic plate.
[0021] By adopting the above technical solution, the telescopic plate is used to block materials and prevent them from being discharged from the round hole.
[0022] Preferably, a reset spring is fixedly connected between the end of the second circular hole away from the second rotating column and the inner wall of the shaking plate, and a push plate is slidably connected to the top surface of the inner wall of the shaking plate.
[0023] By adopting the above technical solution, the second reset spring provides restoring force to the telescopic plate, ensuring that it can stably return to its original position. The push plate is used to push the material after the shaking plate has finished moving, ensuring that the material is discharged from the first round hole after combustion.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] In the auxiliary calcination mechanism, the circular plate drives the connecting rod to rotate, causing the shaking plate to shake up and down. This keeps the material moving in different positions within the furnace, ensuring that all parts of the material are in full contact with the heat source. This reduces local overheating or undercooling and improves the overall heating uniformity of the material. In addition, the shaking can break the thermal boundary layer on the surface of the material, reducing thermal resistance and allowing heat to be transferred to the interior of the material more quickly. This helps to shorten the heating time, improve production efficiency, and create relative movement between the materials, maintaining their dispersed state. Attached Figure Description
[0026] Figure 1 This is a front view of the overall structure of this application;
[0027] Figure 2 This is a schematic diagram of the combustion furnace structure of this application;
[0028] Figure 3 This is a schematic diagram of the internal structure of the combustion furnace in this application;
[0029] Figure 4 This is a schematic diagram of the internal structure of the vibration plate in this application.
[0030] Attached reference numerals: 1. Combustion furnace; 2. Rock wool insulation layer; 3. Refractory bricks; 4. Silicon carbide heating rod; 5. Material gate; 6. Baffle; 7. Bottom discharge cylinder; 8. Scale conveyor;
[0031] 9. Auxiliary calcination mechanism; 91. Rotating column one; 92. Circular plate; 93. Connecting rod; 94. Support plate; 95. Auxiliary cylinder; 96. Return spring one; 97. Vibrating plate; 98. Connector; 99. Auxiliary cylinder; 910. Circular hole one; 911. Telescopic plate; 912. Rotating column two; 913. Circular hole two; 914. Return spring two; 915. Push plate;
[0032] 10. Support frame; 11. Screw conveyor; 12. Flue gas outlet; 13. Secondary combustion chamber; 14. Flue gas inlet. Detailed Implementation
[0033] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0034] This application discloses a box-type emission-free calcining device.
[0035] Reference Figure 1 , Figure 2 The box-type emission-free calcining equipment includes a combustion furnace 1. The equipment has a built-in power supply circuit, control system, and drive circuit. A rock wool insulation layer 2, 200mm thick, is installed on the outer surface of the combustion furnace 1 to reduce heat loss. Refractory bricks 3 are placed between the inner wall of the combustion furnace 1 and the rock wool insulation layer 2. A silicon carbide heating rod 4 is installed on the inner wall of the combustion furnace 1. The silicon carbide heating rod 4 uses resistance heating; when current passes through the rod, due to its high resistance, electrical energy is converted into heat energy, generating high temperatures. The combustion temperature reaches 1300℃~1380℃. A material gate 5 is fixedly connected to the top surface of the combustion furnace 1. A screw conveyor 11 is installed on the top surface of the combustion furnace 1, connected to the material gate 5. The screw conveyor 11 transports the material to the inside of the material gate 5 and then conveys it through the material gate 5. Inside the combustion furnace 1, the support frame 10 is fixedly connected to the bottom surface of the combustion furnace 1, the baffle 6 is rotatably connected to the bottom surface of the combustion furnace 1, and the side of the baffle 6 away from the combustion furnace 1 is fixedly connected to the bottom discharge cylinder 7. The opening and closing state of the baffle 6 is controlled by the extension and retraction of the bottom discharge cylinder 7. The scale conveyor 8 is fixedly connected to the bottom surface of the support frame 10, and the scale conveyor 8 is located below the baffle 6. The box-type emission-free calcining equipment also includes a screw conveyor 11. The outer surface of the combustion furnace 1 is provided with a flue gas outlet 12 and a flue gas inlet 14, and the flue gas outlet 12 is located above the flue gas inlet 14. The secondary combustion box 13 is fixedly connected to one end of the flue gas outlet 12, and the secondary combustion box 13 is located at the end away from the combustion furnace 1. The end of the secondary combustion box 13 away from the flue gas outlet 12 is fixedly connected to the end of the flue gas inlet 14 away from the combustion furnace 1.
[0036] Batch materials are loaded and unloaded from the top of the new type of environmentally friendly box-type emission-free calcining equipment using a screw conveyor. The calcining equipment uses electric heating, achieving a combustion temperature of 1300℃~1380℃. Equipped with an advanced temperature control system, it automatically heats when the box temperature is below 1300℃ and automatically stops heating when the temperature reaches 1380℃, ensuring stable and uniform temperature while reducing energy consumption. The lower part of the box-type emission-free calcining equipment features an automatic hydraulic feeding plate. After thorough calcination, the feeding plate is opened to unload the material into a resistant container. The high-temperature conveyor belt enters the silo. After the material is unloaded, the hydraulic discharge plate automatically closes. The second batch of material is then loaded and unloaded again using a screw conveyor from the top of the new material environmentally friendly box-type emission-free calcining equipment for calcination. The new material environmentally friendly box-type emission-free calcining equipment has exhaust gas ports 12 and inlet gas ports 14 at both ends. The exhaust gas ports 12 discharge the flue gas into the secondary combustion chamber 13 for secondary combustion. The secondary inlet gas ports 14 allow the remaining small amount of flue gas from the secondary combustion chamber 13 to re-enter the new material environmentally friendly box-type emission-free calcining equipment for cyclic calcination.
[0037] Reference Figure 3The auxiliary calcination mechanism 9 is located inside the combustion furnace 1. The internal structure of the auxiliary calcination mechanism 9 is made of high-temperature resistant materials. A rotating column 91 is rotatably connected to the inner wall of the combustion furnace 1. Rotating columns 91 are rotatably connected to both sides of the inner wall of the combustion furnace 1, and the rotating columns 91 are driven by the drive shaft of a motor. When the rotating column 91 needs to be started, the control system sends a command to the drive circuit of the motor. The motor starts running, and its rotation is transmitted to the rotating column 91 through a transmission device, causing it to begin rotating. A circular plate 92 is fixedly connected to one end of the rotating column 91, and the circular plate 92 is located at the end furthest from the inner wall of the combustion furnace 1. A connecting rod 93 is rotatably connected to one side of the circular plate 92, and the connecting rod 93 is located at an eccentric position on the side furthest from the rotating column 91. Therefore, the eccentric design of the connecting rod 93 can change its relative positional relationship with the rotating column 91, thereby affecting the movement trajectory of the connected mechanism or component to achieve uniform heating of the material. A connecting head 98 is rotatably connected to the connecting rod 93. One end of the auxiliary cylinder 98 is located away from the circular plate 92, and the auxiliary cylinder 99 is fixedly connected to the end of the auxiliary cylinder 98 away from the connecting rod 93. The vibrating plate 97 is fixedly connected to the end of the auxiliary cylinder 99 away from the connecting head 98. That is, when the rotating column 91 and the circular plate 92 rotate, the connecting rod 93 will be driven to shift accordingly, thereby causing the connecting head 98, the auxiliary cylinder 99 and the vibrating plate 97 to move up and down, thereby vibrating the material in the vibrating plate 97. The support plate 94 is fixed. The auxiliary cylinder 95 is fixedly connected to one end of the support plate 94 and is located on the top surface of the end away from the inner wall of the combustion furnace 1. The return spring 96 is fixedly connected inside the auxiliary cylinder 95 and the other end of the return spring 96 is fixedly connected to the bottom surface of the shaking plate 97. The return spring 96 is located on both sides of the auxiliary cylinder 99. The auxiliary cylinder 95 and the return spring 96 are used to maintain the balance of the shaking plate 97 and prevent it from tilting when shaking.
[0038] When the material on the shaking plate 97 is shaken, the control system sends a command to the motor drive circuit. The motor starts running and the rotation of the motor is transmitted to the rotating column 91 through the transmission device, causing it to start rotating. The rotation of the rotating column 91 drives the circular plate 92 fixedly connected to it to rotate. The rotation of the circular plate 92 will cause the connecting rod 93 to shift accordingly, thereby causing the connecting head 98, the auxiliary column 99 and the shaking plate 97 to move up and down, thereby shaking the material in the shaking plate 97.
[0039] Reference Figure 4A circular hole 910 is formed inside the vibrating plate 97 and is located on one side of the vibrating plate 97. It is used to discharge the material after calcination. The diameter of the circular hole 910 is 5cm to 10cm. A rotating column 912 is rotatably connected inside the vibrating plate 97 and is driven to rotate by the drive shaft of motor 2. When it is necessary to start the rotating column 912, the control system sends a command to the drive circuit of motor 2, and motor 2 starts to run. The rotation of motor 2 is transmitted to the rotating column 912 through the transmission device, causing it to start rotating. A telescopic plate 911 is fixedly connected to the outer surface of the rotating column 912, and the other end of the telescopic plate 911 is fixedly connected to the return spring 914. The inner wall of the shaking plate 97 has a second circular hole 913 on the outer surface of the telescopic plate 911. The second circular hole 913 is located on the side away from the rotating column 912 and is located below the first circular hole 910. The diameter of the second circular hole 913 is 5cm to 10cm. In the initial state, the first circular hole 910 and the second circular hole 913 are staggered to prevent material from flowing out of the circular hole. The push plate 915 is slidably connected to the inner wall of the shaking plate 97 and is driven by an electric telescopic rod. When a start command is received, the control circuit sends a control signal to the drive circuit to drive the electric telescopic rod to start telescopic movement. The push plate 915 is a wedge-shaped block used to push the material that has not been discharged in the shaking plate 97 to the circular hole.
[0040] When it is necessary to discharge the remaining material on the shaking plate 97, the control system sends a command to the drive circuit of motor 2, and motor 2 starts to run. The rotation of motor 2 is transmitted to the rotating column 912 through the transmission device, causing it to start rotating. The rotation of rotating column 912 drives the telescopic plate 911 to rewind, thereby stretching the reset spring 914, so that the first round hole 910 and the second round hole 913 coincide. Subsequently, the control system sends a command to the electric telescopic rod, which extends and drives the push plate 915 to push the material to the round hole, thereby discharging the material onto the baffle 6.
[0041] The implementation principle of the box-type emission-free calcining equipment in this application embodiment is as follows: During use, the material enters the box from the top of the new material environmentally friendly box-type emission-free calcining equipment using a screw loading and unloading method; the calcining equipment box is heated by electricity, and the combustion temperature can reach 1300℃~1380℃. It is equipped with an advanced temperature control system, which automatically heats when the box temperature is below 1300℃ and automatically stops heating when the box temperature reaches 1380℃. This not only ensures stable and uniform temperature but also reduces energy consumption.
[0042] The box-type emission-free calcining equipment is equipped with an automatic hydraulic feeding plate at the bottom. When the material is calcined, the control system sends a command to the drive circuit of motor one. When the motor starts running, the rotation of motor one is transmitted to the rotating column one 91 through the transmission device, so that it starts to rotate. The rotation of rotating column one 91 drives the circular plate 92 fixedly connected to it to rotate. The rotation of circular plate 92 will drive the connecting rod 93 to make a corresponding offset, which in turn drives the connecting head 98, auxiliary column 99 and shaking plate 97 to move up and down, thereby shaking the material in the shaking plate 97.
[0043] After the material has been fully calcined, the control system sends a command to the drive circuit of motor two, and motor two starts to run. The rotation of motor two is transmitted to rotating column two 912 through the transmission device, causing it to start rotating. The rotation of rotating column two 912 drives the telescopic plate 911 to retract, thereby stretching the reset spring two 914, so that the first round hole 910 and the second round hole 913 coincide. Subsequently, the control system sends a command to the electric telescopic rod, which extends, driving the push plate 915 to push the material to the round hole, thereby discharging the material onto the baffle 6. Then, the baffle 6 is opened to release the material. The material is unloaded into the high-temperature resistant conveyor belt and enters the silo. After the material is unloaded, the hydraulic discharge plate closes automatically. The second batch of material is then loaded and unloaded again using a screw conveyor and enters the box from the top of the new material environmentally friendly box-type emission-free calcining equipment for calcination. The new material environmentally friendly box-type emission-free calcining equipment is equipped with exhaust gas outlets 12 and inlet gas outlets 14 at both ends. The exhaust gas outlets 12 discharge the flue gas into the secondary combustion box 13 for secondary combustion. The secondary inlet gas outlets 14 allow the remaining small amount of flue gas from the secondary combustion box 13 to re-enter the new material environmentally friendly box-type emission-free calcining equipment for cyclic calcination.
[0044] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.
Claims
1. A box-type emission-free calcining apparatus, characterized by: The utility model relates to a box type emissionless calcining equipment, including combustion furnace (1), the outer surface of combustion furnace (1) is provided with rock wool insulation layer (2), the outer surface of combustion furnace (1) is provided with firebrick (3), the inner wall of combustion furnace (1) is provided with silicon carbon heating rod (4), the top surface of combustion furnace (1) is provided with material gate (5), the bottom surface of combustion furnace (1) is provided with support frame (10), the bottom surface of combustion furnace (1) is rotatably connected with baffle (6), the side surface of support frame (10) is provided with bottom discharge oil cylinder (7), the bottom surface of support frame (10) is provided with scale plate conveyor (8), the box type emissionless calcining equipment further includes screw conveyor (11), the outer surface of combustion furnace (1) is provided with flue gas outlet (12), the one end of flue gas outlet (12) away from combustion furnace (1) is provided with secondary combustion box (13), and the secondary combustion box (13) is provided with flue gas inlet (14) between combustion furnace (1). The inside of the combustion furnace (1) is provided with an auxiliary calcining mechanism (9) for reducing the calcining time.
2. The box-type emission-free calcination apparatus according to claim 1, characterized by: The auxiliary calcining mechanism (9) includes a rotating column I (91) rotatably connected to the inner wall of the combustion furnace (1), and the one end of the rotating column I (91) away from the inner wall of the combustion furnace (1) is fixedly connected with a circular plate (92).
3. The box-type emission-free calcination apparatus according to claim 2, characterized by: The one side of the circular plate (92) away from the rotating column I (91) is rotatably connected with a connecting rod (93), and the one end of the connecting rod (93) away from the circular plate (92) is rotatably connected with a connecting head (98).
4. The box-type emission-free calcination apparatus according to claim 3, characterized by: The one end of the connecting head (98) away from the connecting rod (93) is fixedly connected with an auxiliary cylinder (99), and the one end of the auxiliary cylinder (99) away from the connecting head (98) is fixedly connected with a shaking plate (97).
5. The box-type emission-free calcination apparatus according to claim 4, characterized by: The inner wall of the combustion furnace (1) is fixedly connected with a supporting plate (94), one end of the supporting plate (94) is fixedly connected with an auxiliary cylinder (95), and the inside of the auxiliary cylinder (95) is fixedly connected with a return spring I (96).
6. The box-type emission-free calcination apparatus according to claim 4, characterized by: The inside of the shaking plate (97) is provided with a circular hole I (910), and the inside of the shaking plate (97) is rotatably connected with a rotating column II (912).
7. The box-type emission-free calcination apparatus according to claim 6, characterized by: The outer surface of the rotating column II (912) is fixedly connected with an expansion plate (911), and the outer surface of the expansion plate (911) is provided with a circular hole II (913).
8. The box-type emission-free calcination apparatus according to claim 7, characterized by: The one end of the circular hole II (913) away from the rotating column II (912) is fixedly connected with a return spring II (914) between the inner wall of the shaking plate (97), and the top surface of the inner wall of the shaking plate (97) is slidably connected with a push plate (915).