Cement dryer for cement processing

Abstract

The utility model provides a kind of cement drying machine for cement processing belongs to cement processing technical field;Including: installation bottom plate, still include: stirring transmission subassembly, stirring transmission subassembly is set on the upper wall surface of installation bottom plate;Mixed heating component, mixed heating component is fixedly set in the lateral wall surface of stirring transmission subassembly, and mixed heating component passes through the inside of stirring transmission subassembly;Transmission component, transmission component is set on the lower wall surface of installation bottom plate, and transmission component movably set in the outside of stirring transmission subassembly;Power component, power component is set on the lower wall surface of installation bottom plate;Inlet component, inlet component is set on the upper wall surface of installation bottom plate;The utility model is combined stirring transmission and heating function, realizes dynamic drying, material is continuously stirred and heated in conveying process, ensure that heat penetration is uniform;PLC and sensor are introduced in electrical control system, realize accurate temperature control and automatic operation, solve the drawbacks of traditional device relying on manual adjustment.

Description

Technical Field

[0001] This utility model belongs to the field of cement processing technology, and specifically relates to a cement dryer for cement processing. Background Technology

[0002] Cement processing refers to the process of producing finished cement products from raw cement materials (such as limestone and clay) through crushing, mixing, grinding, and drying. Drying is a crucial step, aiming to reduce the moisture content of the materials and improve cement quality and storage stability. Technological developments in this field focus on improving drying efficiency, reducing energy consumption, ensuring uniform heating, and automating control.

[0003] Patent document CN 222528186 U describes a drying device for cement processing. This device generates hot air through the dryer body and distributes the hot air through multiple ventilation ducts to achieve uniform drying. While this patent addresses the problem of concentrated hot air to some extent, it still has shortcomings: First, it relies on hot air convection, which can easily lead to surface drying while the interior remains damp for viscous materials (such as cement) because the hot air has difficulty penetrating deep into the material. Second, the device uses a static storage tank, and the material is only stirred by the mixing frame during the drying process, resulting in limited mixing and potentially causing localized overheating or incomplete drying. Third, the electrical control system is relatively simple and lacks automated monitoring, such as real-time feedback and adjustment of temperature and humidity, increasing manual intervention and energy waste. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a specific technical solution: a cement dryer for cement processing, comprising: a mounting base plate, and further comprising: a mixing and conveying assembly disposed on the upper wall of the mounting base plate; a mixing and heating assembly fixedly disposed on the side wall of the mixing and conveying assembly, and passing through the interior of the mixing and conveying assembly; a transmission assembly disposed on the lower wall of the mounting base plate, and movably disposed outside the mixing and conveying assembly; a power assembly disposed on the lower wall of the mounting base plate; and a feeding assembly disposed on the upper wall of the mounting base plate. The mixing and conveying assembly comprises: two mixing and conveying support plates, respectively disposed on the upper wall of the mounting base plate; a mixing and conveying tank, disposed inside the two mixing and conveying support plates via bearings; and a mixing and conveying screw plate disposed on the inner wall of the mixing and conveying tank.

[0005] Preferably, the mixing and heating assembly includes: a heating plate disposed between two stirring and conveying support plates and passing through the interior of the stirring and conveying tank; and an electric heating plate disposed on the lower wall surface of the heating plate.

[0006] Preferably, the transmission assembly includes: a large transmission wheel, which is fixedly mounted on the outside of the mixing and conveying tank; and a small transmission wheel, which is mounted on the lower wall of the mounting base plate via a rotating shaft, and the small transmission wheel and the large transmission wheel are driven by a belt.

[0007] Preferably, the power assembly includes: a power motor disposed on the lower wall of the mounting base plate; and a reducer disposed on the lower wall of the mounting base plate, and the reducer is disposed between the drive end of the power motor and the rotating shaft of the transmission wheel.

[0008] Preferably, the feeding assembly includes: a feeding hopper, which is mounted on the upper wall of the mounting base plate via a bracket; and a feeding pipe, one end of which is located at the lower end of the feeding hopper, and the other end of which extends into the mixing and conveying tank.

[0009] Preferably, the lower wall of the mounting base plate is provided with a shock-absorbing bracket.

[0010] Preferably, the discharge end of the mixing and conveying tank is provided with a discharge expansion plate.

[0011] Preferably, the inlet end of the mixing and conveying tank is provided with an inlet baffle.

[0012] Preferably, the feed hopper is equipped with a filter screen inside.

[0013] Preferably, the upper surface of the heating plate is an upwardly convex arc shape.

[0014] The cement dryer for cement processing disclosed in this utility model has the following advantages compared with the prior art: By combining stirring, conveying and heating functions, the cement dryer for cement processing achieves dynamic drying. The material is continuously stirred and heated during the conveying process to ensure uniform heat penetration. The electrical control system introduces PLC and sensors to achieve precise temperature control and automated operation, solving the drawbacks of traditional devices that rely on manual adjustment.

[0015] This device solves the problems of uneven material mixing and low conveying efficiency through the stirring and conveying components, achieving continuous automated production. The rotating design of the stirring and conveying tank and the screw plate keeps the material turning over during the drying process, preventing clumping and improving drying uniformity.

[0016] This device solves the problem of insufficient heat penetration in traditional hot air drying by using a hybrid heating component, achieving deep heating and energy saving. The direct radiation heating method of the electric heating plate allows heat to be directly transferred to the material, reducing heat loss. The temperature control system precisely adjusts the temperature to avoid overheating or underheating.

[0017] This device solves the problems of unstable transmission and frequent maintenance through transmission and power components, achieving high reliability and low noise. The use of synchronous belt drive and reducer ensures smooth power transmission and reduces vibration. Variable frequency control allows for speed adjustment to adapt to different material requirements and extends equipment life. Attached Figure Description

[0018] Figure 1 A schematic diagram of the first overall structure of the cement dryer for cement processing provided by this utility model; Figure 2 This is a schematic diagram of the second integral structure of the cement dryer for cement processing provided by this utility model. Figure 3 An exploded view of a first partial structure of the cement dryer for cement processing provided by this utility model; Figure 4 An exploded view of the second partial structure of the cement dryer for cement processing provided by this utility model; in, Figures 1 to 4 The attached figures and components for a cement dryer for cement processing are as follows: 1. Mounting base plate; 2. Mixing and conveying support plate; 3. Mixing and conveying tank; 4. Mixing and conveying screw plate; 5. Heating support plate; 6. Electric heating plate; 7. Large transmission wheel; 8. Small transmission wheel; 9. Power motor; 10. Reducer; 11. Feed hopper; 12. Feed pipe; 13. Discharge expansion plate; 14. Feed baffle. Detailed Implementation

[0019] The following are specific implementation cases and appendices. Figures 1-4 This utility model will be further described, but it is not limited to these embodiments. This utility model provides a technical solution: a cement dryer for cement processing, comprising: a mounting base plate 1, and further comprising: a mixing and conveying assembly disposed on the upper wall of the mounting base plate 1; a mixing and heating assembly fixedly disposed on the side wall of the mixing and conveying assembly, and passing through the interior of the mixing and conveying assembly; a transmission assembly disposed on the lower wall of the mounting base plate 1, and movably disposed outside the mixing and conveying assembly; and a power assembly disposed on the mounting base plate 1. The lower wall of the base plate 1; the feeding assembly, which is set on the upper wall of the mounting base plate 1; the mixing and conveying assembly includes: two mixing and conveying support plates 2, which are respectively set on the upper wall of the mounting base plate 1; a mixing and conveying tank 3, which is set inside the two mixing and conveying support plates 2 by bearings; a mixing and conveying screw plate 4, which is set on the inner wall of the mixing and conveying tank 3; a shock-absorbing bracket is provided on the lower wall of the mounting base plate 1; a discharge expansion plate 13 is provided at the discharge end of the mixing and conveying tank 3; and a feed baffle 14 is provided at the feed end of the mixing and conveying tank 3.

[0020] As a preferred embodiment, the mixing and heating assembly further includes: a heating plate 5, which is disposed between two stirring and conveying support plates 2 and passes through the interior of the stirring and conveying tank 3; and an electric heating plate 6, which is disposed on the lower wall of the heating plate 5 and the upper surface of the heating plate 5 is an upwardly convex arc shape.

[0021] As a preferred embodiment, the transmission assembly further includes: a large transmission wheel 7, which is fixedly mounted on the outside of the mixing and conveying tank 3; and a small transmission wheel 8, which is mounted on the lower wall of the mounting base plate 1 via a rotating shaft, and the small transmission wheel 8 and the large transmission wheel 7 are driven by a belt.

[0022] As a preferred embodiment, the power assembly further includes: a power motor 9, which is disposed on the lower wall of the mounting base plate 1; and a reducer 10, which is disposed on the lower wall of the mounting base plate 1 and is located between the drive end of the power motor 9 and the rotating shaft of the transmission wheel 8.

[0023] As a preferred embodiment, the feeding assembly further includes: a feeding hopper 11, which is mounted on the upper wall of the mounting base plate 1 via a bracket; a feeding pipe 12, one end of which is located at the lower end of the feeding hopper 11, and the other end of which extends into the mixing and conveying tank 3; and a filter screen is provided inside the feeding hopper 11.

[0024] Working principle: Before using this device, the operator installs it in the designated location using the shock-absorbing bracket, connects an external AC power supply to the device to provide energy for the electrical equipment, and connects a matching controller to the device to provide control and operating logic for the electrical equipment.

[0025] Then, the device is started, and the power motor 9 begins to rotate. The drive end of the power motor 9 drives the transmission pulley 8 to rotate through the reducer 10. The rotation of the transmission pulley 8 drives the transmission pulley 7 to rotate through the transmission belt. The transmission pulley 7 drives the mixing and conveying tank 3 and the mixing and conveying screw plate 4 installed inside the mixing and conveying tank 3 to rotate. At the same time, the electric heating plate 6 starts to work, generating heat to raise the temperature inside the mixing and conveying tank 3.

[0026] Next, the operator pours the raw materials for cement processing into the feed hopper 11. The feed hopper 11 is equipped with a filter screen to remove excessively large portions of the raw materials. The raw materials are then discharged into the mixing and conveying tank 3 through the feed pipe 12. The operator pours various cement-making raw materials into the feed hopper 11, simultaneously conveying and mixing them. The mixing and conveying tank 3 and the mixing and conveying screw plate 4 rotate simultaneously. The rotating mixing and conveying tank 3 continuously agitates the raw materials, achieving mixing. The rotating mixing and conveying screw plate 4 conveys the raw materials from the inlet to the outlet of the mixing and conveying tank 3. The inlet of the mixing and conveying tank 3 is equipped with an inlet baffle 14 to prevent material leakage, while the outlet of the mixing and conveying tank 3 is equipped with a discharge expansion plate 13 to facilitate the discharge of cement raw materials from inside the mixing and conveying tank 3.

[0027] Example: This cement dryer mainly includes a mounting base plate 1, a mixing and conveying assembly, a mixing and heating assembly, a transmission assembly, a power assembly, and a feeding assembly. The mounting base plate 1 serves as the supporting foundation for the entire device and is installed in a designated position using vibration-damping brackets to reduce vibration and noise. The mixing and conveying assembly is responsible for mixing and conveying the cement raw materials, the mixing and heating assembly provides heating, the transmission assembly and power assembly drive the movement of the mixing and conveying assembly, and the feeding assembly is used for feeding the raw materials. The electrical control system is integrated into the device and achieves automated control through an external controller (such as a PLC or microcontroller).

[0028] The mixing and conveying assembly is the core component, comprising two mixing and conveying support plates 2, a mixing and conveying tank 3, and a mixing and conveying screw plate 4. The two mixing and conveying support plates 2 are fixedly installed on the upper wall of the mounting base plate 1. The mixing and conveying support plates 2 are made of high-strength steel with rust-proof treatment to extend their service life. The mixing and conveying tank 3 is mounted inside the two mixing and conveying support plates 2 via bearings. Deep groove ball bearings are used, capable of withstanding radial and axial loads to ensure smooth rotation of the mixing and conveying tank 3. The mixing and conveying tank 3 is made of stainless steel with a smooth inner wall to reduce material adhesion. The mixing and conveying screw plate 4 is fixedly installed on the inner wall of the mixing and conveying tank 3, employing a spiral design to push material from the inlet end to the outlet end. The blade thickness of the mixing and conveying screw plate 4 is 5mm, with rounded edges to avoid damaging the material. An inlet baffle 14 is provided at the inlet end of the mixing and conveying tank 3, and an outlet expansion plate 13 is provided at the outlet end. The inlet baffle 14 prevents material from splashing during input, and the outlet expansion plate 13 is designed in a funnel shape to facilitate material discharge. The rotation of the stirring and conveying assembly is driven by a power motor 9 through a transmission assembly. The control logic sets the startup sequence: first, the heating assembly is started for preheating, then the stirring and conveying assembly is started. PLC programming is used to adapt to materials with different moisture levels. A speed sensor (such as an encoder) is installed on the stirring and conveying tank 3, feeding back signals to the controller to achieve closed-loop control.

[0029] The mixing and heating assembly includes a heating tray 5 and an electric heating plate 6. The heating tray 5 is positioned between two stirring and conveying support plates 2, passing through the interior of the stirring and conveying tank 3. The upper surface of the heating tray 5 is designed with an upward-convex arc shape, matching the contour of the inner wall of the stirring and conveying tank 3 to ensure uniform heat transfer. The heating tray 5 is made of aluminum alloy with good thermal conductivity, has a thickness of 10mm, and is coated with a high-temperature resistant coating. The electric heating plate 6 is fixedly installed on the lower wall of the heating tray 5, using resistance wire heating. The electric heating plate 6 integrates a temperature sensor (such as a thermocouple) to monitor the temperature in real time. The electric heating plate 6 is connected to a contactor and a temperature controller in the control cabinet via a cable. The temperature controller is set to a temperature range of 50-150°C and automatically adjusts according to the material's moisture content. Control logic: When the device starts, the temperature controller is powered on first, and the electric heating plate 6 begins heating. Only after the set temperature is reached does the controller allow the power motor 9 to start, avoiding material agglomeration caused by cold starts. During the heating process, the temperature sensor provides feedback data, and the PLC controls the process to maintain a stable temperature. If the temperature exceeds the safety threshold, the overheat protection switch will cut off the power.

[0030] The transmission assembly includes a large transmission pulley 7 and a small transmission pulley 8. The large transmission pulley 7, made of cast iron and with synchronous belt pulley teeth, is fixedly mounted on the outside of the mixing and conveying tank 3. The small transmission pulley 8, made of the same material as the large transmission pulley 7, is mounted on the lower wall of the mounting base plate 1 via a rotating shaft. The small transmission pulley 8 and the large transmission pulley 7 are connected by a synchronous belt (HTD 8M, 20mm wide) to ensure high transmission efficiency and low noise. The rotating shaft is supported on a bearing housing and lubricated with grease.

[0031] The power assembly includes a power motor 9 and a reducer 10. The power motor 9 is a three-phase asynchronous motor, mounted on the lower wall of the mounting base 1 and secured with anchor bolts. The reducer 10 is a worm gear reducer with a reduction ratio of 10:1 and an output speed of 144 rpm. It connects the drive end of the power motor 9 and the rotating shaft of the transmission wheel 8. The reducer 10 housing is made of cast iron, internally filled with lubricating oil, and well-sealed. The PLC outputs signals to the frequency converter to adjust the motor speed. The control logic includes a soft-start function to avoid current surges; the speed setting is input via a human-machine interface and can be adjusted according to the material type.

[0032] The feeding assembly includes a feeding hopper 11 and a feeding pipe 12. The feeding hopper 11 is mounted on the upper wall of the mounting base plate 1 via a bracket and is made of stainless steel with a smooth inner wall. A filter screen is installed inside the feeding hopper 11 to remove excessively large impurities. One end of the feeding pipe 12 is connected to the lower end of the feeding hopper 11, and the other end extends into the mixing and conveying tank 3, using a flange connection for easy disassembly and cleaning.

[0033] Before using this device, the operator should secure it using the shock-absorbing bracket, connect it to a 380V AC three-phase power supply, and connect the controller (such as a Siemens S7-1200 PLC). The controller programming includes the following operating logic: ① Startup Sequence: The operator presses the start button via HMI, and the controller first checks the safety status. Then, the electric heating plate 6 is powered on, the temperature controller starts heating, and during the heating process, the temperature sensor provides real-time feedback, and the PLC makes adjustments. When the temperature reaches 80°C, the controller sends a signal to start the power motor 9.

[0034] ② Operation Phase: The power motor 9 is soft-started via a frequency converter, and its speed gradually increases to the set value. After the reducer 10 reduces the speed, it drives the transmission pulley 8, which in turn drives the transmission pulley 7 via a synchronous belt, causing the mixing and conveying tank 3 and the mixing and conveying screw plate 4 to rotate. At the same time, the operator feeds cement raw materials into the feed hopper 11. After being screened by a filter screen, the raw materials enter the mixing and conveying tank 3 through the feed pipe 12. The rotation of the mixing and conveying screw plate 4 achieves the mixing and forward conveying of the materials. The electric heating plate 6 continuously heats the tank to maintain the temperature inside, and the moisture is evaporated.

[0035] ③ Monitoring and Protection: The PLC continuously monitors key parameters: motor current (overload protection), temperature (overheat protection), and speed (encoder feedback). If any parameter is abnormal, the controller triggers an alarm.

[0036] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cement dryer for cement processing, comprising: Mounting base plate (1), characterized in that it further includes: A stirring and conveying assembly is disposed on the upper wall of the mounting base plate (1); A mixing and heating assembly is fixedly disposed on the side wall of the stirring and conveying assembly, and the mixing and heating assembly passes through the interior of the stirring and conveying assembly; A transmission assembly is disposed on the lower wall of the mounting base plate (1) and is movably disposed outside the stirring and conveying assembly; A power assembly is disposed on the lower wall of the mounting base plate (1); Feeding assembly, which is disposed on the upper wall of the mounting base plate (1); The mixing and conveying assembly includes: Two stirring conveying support plates (2) are respectively set on the upper wall of the mounting base plate (1); The mixing and conveying tank (3) is installed inside the two mixing and conveying support plates (2) by bearings; A stirring conveying screw plate (4) is disposed on the inner wall surface of the stirring conveying tank (3).

2. The cement dryer for cement processing according to claim 1, characterized in that, The hybrid heating assembly includes: Heating plate (5) is disposed between two stirring conveyor support plates (2) and passes through the interior of stirring conveyor tank (3); An electric heating plate (6) is disposed on the lower wall of the heating tray (5).

3. The cement dryer for cement processing according to claim 1, characterized in that, The transmission assembly includes: The transmission wheel (7) is fixedly installed on the outside of the mixing and conveying tank (3); The transmission pinion (8) is mounted on the lower wall of the mounting base plate (1) via a rotating shaft, and the transmission pinion (8) and the transmission wheel (7) are driven by a belt.

4. The cement dryer for cement processing according to claim 1, characterized in that, The power assembly includes: A power motor (9) is mounted on the lower wall of the mounting base plate (1); The reducer (10) is disposed on the lower wall of the mounting base plate (1) and is disposed between the drive end of the power motor (9) and the rotating shaft of the transmission wheel (8).

5. The cement dryer for cement processing according to claim 1, characterized in that, The feeding assembly includes: Feed hopper (11), the feed hopper (11) is mounted on the upper wall of the mounting base plate (1) by means of a bracket; Feed pipe (12), one end of which is located at the lower end of the feed hopper (11), and the other end of which extends into the mixing and conveying tank (3).

6. The cement dryer for cement processing according to claim 1, characterized in that, The lower wall of the mounting base plate (1) is provided with a shock-absorbing bracket.

7. The cement dryer for cement processing according to claim 1, characterized in that, The discharge end of the mixing and conveying tank (3) is provided with a discharge expansion plate (13).

8. The cement dryer for cement processing according to claim 1, characterized in that, The feed inlet of the mixing and conveying tank (3) is provided with a feed baffle (14).

9. The cement dryer for cement processing according to claim 5, characterized in that, The feed hopper (11) is equipped with a filter screen inside.

10. The cement dryer for cement processing according to claim 2, characterized in that, The upper surface of the heating plate (5) is an upwardly convex arc shape.

Images