A suspension roasting device for multiple types of alumina

Abstract

The present invention relates to the field of suspension roasting technology, specifically a suspension roasting device for multiple varieties of alumina, comprising a roasting equipment frame and a roasting kettle mounted on the roasting equipment frame; the roasting kettle comprises a high-temperature heating machine, a high-temperature heat pump, a preheating chassis and a roasting chassis; an equipment platform is provided on the roasting kettle, the preheating chassis is mounted on the equipment platform, the roasting chassis is mounted on the preheating chassis, the bottom of the roasting chassis extends into the inner cavity of the preheating chassis and is connected to the inner space of the preheating chassis; a high-temperature machine installation box is provided on the roasting equipment frame, the high-temperature heat pump is installed on the inner side of the discharge box, the input end of the high-temperature heat pump is connected to the heat source output end of the high-temperature heating machine, and the heat source output end of the high-temperature heat pump is connected to the bottom of the roasting chassis. The present invention realizes flexible distribution and efficient utilization of thermal energy by independently setting up a preheating heating system, and realizes accurate measurement and real-time monitoring of the operating temperature of suspension roasting.

Description

Technical Field

[0001] The invention relates to the technical field of suspension roasting, in particular to a suspension roasting device for multi-variety alumina. Background Art

[0002] Changes in market demand have driven the continuous innovation of various alumina production technologies. In order to meet the market demand for high-quality, high-tech, and high-value-added alumina products, alumina manufacturers need to continuously improve production processes and equipment. As one of the key equipment in alumina production, the performance and technical level of the suspension roasting device directly affect the quality and production efficiency of the product.

[0003] The core part of the suspension roasting furnace device in the prior art is a suspension roasting furnace with adjustable heating temperature and air flow speed. A plurality of adjustable nozzles are provided in the furnace for spraying alumina particles and heated air flow into the furnace, so that the alumina particles are suspended in the furnace. However, the existing equipment has certain defects. The preheating stage and the high temperature stage in the suspension roasting process of alumina are operated by the same heating system, so there are defects in temperature control. It is easy to have problems of insufficient preheating or uneven preheating temperature during the roasting process, resulting in quality problems such as cracking and deformation of some products. Summary of the invention

[0004] The object of the present invention is to provide a suspension roasting device for multi-variety alumina to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A suspension roasting device for multiple varieties of alumina, comprising a roasting equipment frame and a roasting kettle mounted on the roasting equipment frame; the roasting kettle comprises a high-temperature heating machine, a high-temperature heating pump, a preheating chassis and a roasting chassis; an equipment platform is provided on the roasting kettle, the preheating chassis is mounted on the equipment platform, the roasting chassis is mounted on the preheating chassis, the bottom of the roasting chassis extends into the inner cavity of the preheating chassis and is connected to the inner space of the preheating chassis; a high-temperature machine installation compartment is provided on the roasting equipment frame, the high-temperature heating machine is installed in the compartment of the high-temperature machine installation compartment, a discharge compartment and a turnover compartment located on the side edge of the discharge compartment are also provided on the roasting equipment frame, the high-temperature heating pump is installed on the inner compartment side edge of the discharge compartment, the high-temperature The input end of the heat supply pump is connected to the heat source output end of the high-temperature heat supply machine, and the heat source output end of the high-temperature heat supply pump is connected to the bottom of the roasting machine case; the side edge of the roasting equipment rack is also provided with a preheating heat supply machine and a preheating heat supply pipe installed on the preheating heat supply machine, and the output end of the preheating heat supply machine is divided into two groups of preheating heat supply pipes, and the preheating heat supply pipes are respectively located on both sides of the roasting machine case and pass into the inner cavity of the preheating machine case; a preheating ventilation pump is also provided on the top of the preheating machine case, and two preheating ventilation pumps are provided and respectively located on both sides of the roasting machine case, and preheating ventilation joints are provided on the preheating ventilation pumps, and the air supply end of the preheating ventilation pump passes into the inner cavity of the preheating machine case; an exhaust system is provided on the top of the roasting machine case.

[0007] As a further solution of the present invention: the main body of the roasting machine box is a roasting main box, the top outer shell of the roasting main box is provided with a roasting outer box, the bottom of the roasting main box is provided with a heat box, the upper layer of the roasting outer box is provided with an exhaust layer, and the exhaust system is connected to the exhaust layer.

[0008] As a further solution of the present invention: the heat box is located in the middle area of ​​the inner space of the preheating chassis, the bottom side edge of the heat box is connected to the output pipe of the high-temperature heat pump through a flow pump, and side wing heat machines are installed on the two side walls of the heat box, and the left and right areas of the inner space of the preheating chassis are respectively provided with preheating airflow turnover intervals connected to the corresponding side wing heat machines.

[0009] As a further solution of the present invention: the output end of the preheating heating pipe is divided into several preheating heat circulation inlets, the output end of the preheating ventilation pump is provided with a preheating air circulation inlet, and the preheating heat circulation inlet and the preheating air circulation inlet both lead into the corresponding preheating air flow turnover interval.

[0010] As a further solution of the present invention: a discharge valve port is arranged at the midpoint of the bottom of the heat box, a cooling zone is arranged at the top of the discharge chamber, the cooling zone is located directly below the heat box and is opposite to the discharge valve port, a receiving hopper is arranged at the bottom of the cooling zone, and a discharge port is arranged at the bottom of the hopper body.

[0011] As a further solution of the present invention: a support fence is also provided in the middle area of ​​the inner space of the preheating chassis, the support fence is arranged on the periphery of the roasting chassis and the bottom of the support fence is supported on the equipment platform through a fixing frame.

[0012] As a further solution of the present invention: a transverse bottom bracket is arranged on the guardrail, and inner bellows are installed on both side ends of the transverse bottom bracket through bellows frames, and cold air panels are respectively arranged on the inner bellows, and the cold air panels are inclinedly arranged at the inner end of the lower plane of the inner bellows, and the blowing surfaces of the cold air panels are both facing the discharge valve port, and the cold air panels on both sides form an "eight"-shaped structure.

[0013] As a further solution of the present invention: a top bracket, a supporting substrate installed on the top bracket and a top box support frame mounted on the supporting substrate are provided at the bottom of the exhaust layer; the top bracket is installed on the inner wall of the roasting outer box; and a material interception section is provided on the top box support frame.

[0014] As a further solution of the present invention: a plurality of temperature measuring components are also arranged in the exhaust layer, and the temperature measuring components include a temperature sensing adjustment component and a temperature sensor; a side wing mounting plate is installed on the box wall of the exhaust layer, and the temperature sensing adjustment component includes a fixing seat installed on the side wing mounting plate, a steering barrel arranged on the fixing seat, and a steering wheel installed on the steering barrel, a sensor mounting seat is installed on the steering wheel, and the temperature sensor is fixed on the sensor mounting seat.

[0015] As a further solution of the present invention: the temperature sensor includes a sensor chassis, a sensor barrel and a sensor measuring barrel, and the sensor chassis, sensor barrel and sensor measuring barrel are installed in an integrated manner. An airflow introduction cavity is provided in the sensor measuring barrel, and an annular measuring instrument is provided in the airflow introduction cavity. One end of the annular measuring instrument is provided with a plurality of temperature sensing ends at the outer mouth of the sensor measuring barrel, and the other end of the annular measuring instrument is provided with a potential connecting line, which extends into the sensor chassis along the sensor barrel and is connected to the compensation end inside the sensor chassis.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By independently setting up the preheating and heating system, flexible distribution and efficient utilization of heat energy are achieved. The coordinated work of the preheating heater and the preheating ventilation pump enables the alumina raw materials to be more fully preheated in the preheating box, thereby improving the thermal energy utilization efficiency of the entire roasting process. The alumina raw materials after preheating are easier to be suspended and roasted in the roasting box. Due to the increase in the temperature of the raw materials, the heat required for the roasting process is reduced, and the roasting time is shortened, thereby improving the roasting efficiency. The independent setting of the preheating and heating system makes the operation of the entire roasting device simpler and more flexible. The operator can adjust the working parameters of the preheating heater and the preheating ventilation pump according to actual needs to meet the roasting requirements of different types of alumina.

[0018] 2. Through precise cooling zone design and tilted setting of the cold air panel, it is ensured that the alumina particles can be cooled down in a timely and uniform manner during the discharge process, effectively avoiding quality problems caused by excessive temperature.

[0019] 3. The temperature sensor is designed to accurately capture the real temperature in the exhaust layer, reducing the error caused by improper measurement position or uneven gas flow. By integrating advanced temperature sensing technology, accurate measurement and real-time monitoring of the operating temperature of suspension roasting are achieved, providing strong support for the optimization of the alumina suspension roasting process.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0022] Figure 1 A schematic diagram of the overall structure of a suspension roasting device for multiple varieties of alumina provided in an embodiment of the present invention.

[0023] Figure 2 A schematic diagram of the structures of a baking chassis and a preheating chassis provided in an embodiment of the present invention.

[0024] Figure 3 A schematic diagram of the arrangement of the preheating heating pipe and the preheating ventilation pump provided in an embodiment of the present invention.

[0025] Figure 4 A schematic diagram of the structure of an inner bellows and a cooling zone provided in an embodiment of the present invention.

[0026] Figure 5A schematic diagram of the internal structure of the exhaust layer provided in an embodiment of the present invention.

[0027] Figure 6 A schematic diagram of the structure of a temperature measurement component provided in an embodiment of the present invention.

[0028] Figure 7 A schematic diagram of the cross-sectional structure of a shell of a temperature sensor provided in an embodiment of the present invention.

[0029] In the figure: 10, roasting kettle; 11, high temperature heating machine; 12, high temperature heating pump; 13, preheating box; 14, roasting box; 15, preheating heating machine; 16, preheating heating pipe; 17, preheating ventilation joint; 18, preheating ventilation pump; 20, roasting equipment rack; 21, work station connection track; 22, high temperature machine installation box; 23, discharge box; 24, turnover box; 25, equipment platform; 26, exhaust system; 31, roasting outer box; 32, roasting main box; 33, heat box; 34, side wing heat machine; 35, preheating heat circulation inlet; 36, preheating air circulation inlet; 37, preheating air flow turnover interval; 38, exhaust layer; 41, discharge valve; 42, drop temperature interval; 43, receiving hopper; 44, discharge port; 51, guardrail; 52, fixed frame; 53, horizontal bottom bracket; 54, bellows frame; 55, inner bellows; 56, cold air panel; 61, top bracket; 62, supporting substrate; 63, top box support frame; 64, material interception interval; 65, side wing mounting plate; 66, temperature measuring component; 70, temperature sensing adjustment part; 71, fixed seat; 72, steering barrel; 73, steering wheel; 74, sensor mounting seat; 80, temperature sensor; 81, sensor chassis; 82, sensor barrel; 83, sensor measuring cylinder; 84, air flow introduction cavity; 85, annular measuring instrument; 86, temperature sensing end; 87, potential connecting line. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0031] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] In one embodiment, see Figure 1, provides a suspension roasting device for multiple varieties of alumina, comprising a roasting equipment frame 20 and a roasting kettle 10 mounted on the roasting equipment frame 20; the roasting kettle 10 comprises a high-temperature heating machine 11, a high-temperature heating pump 12, a preheating chassis 13 and a roasting chassis 14; the roasting kettle 10 is provided with an equipment platform 25, the preheating chassis 13 is mounted on the equipment platform 25, the roasting chassis 14 is mounted on the preheating chassis 13, the bottom of the roasting chassis 14 extends into the inner cavity of the preheating chassis 13 and is connected to the preheating chassis 13 The inner space is connected; a high-temperature machine installation compartment 22 is provided on the roasting equipment rack 20, and the high-temperature heat supply machine 11 is installed in the compartment of the high-temperature machine installation compartment 22. The roasting equipment rack 20 is also provided with a discharge compartment 23 and a turnover compartment 24 located on the side edge of the discharge compartment 23. The high-temperature heat pump 12 is installed on the inner compartment side edge of the discharge compartment 23, and the input end of the high-temperature heat pump 12 is connected to the heat source output end of the high-temperature heat supply machine 11, and the heat source output end of the high-temperature heat pump 12 is connected to the bottom of the roasting machine box 14.

[0034] This embodiment is based on the suspension roasting technology of alumina, and technically optimizes the preheating process and temperature control process of the suspension roasting of alumina. The entire device consists of two main parts: a roasting equipment frame 20 and a roasting kettle 10. The roasting equipment frame 20 serves as the supporting structure of the entire device and is made of sturdy and durable materials to ensure the stability and safety of the device. The roasting kettle 10 is the core component of the device, including a high-temperature heating machine 11, a high-temperature heat pump 12, a preheating chassis 13 and a roasting chassis 14. These components work together to complete the suspension roasting process of alumina.

[0035] The high temperature heating machine 11 is installed in the high temperature machine installation compartment 22, which has good heat insulation performance to reduce heat loss and improve thermal efficiency. The high temperature heating machine 11 is responsible for providing a stable high temperature heat source to meet the temperature requirements during the roasting process. The preheating chassis 13 is mounted on the equipment platform 25 and is used to preheat the alumina raw materials entering the roasting chassis 14. During operation, the alumina raw materials are first preheated by the preheating chassis 13 to increase the temperature of the raw materials, making it easier to suspend roast in the roasting chassis 14. Then the high temperature heat pump 12 is used as a component for heat source transmission, and its heat source output end is connected to the bottom of the roasting chassis 14. The high temperature heat pump 12 efficiently transmits the heat generated by the high temperature heating machine 11 to the roasting chassis 14, providing the necessary heat for the roasting of alumina. At the same time, the suspended roasting device (such as a stirrer or an air flow nozzle, etc.) in the roasting box 14 keeps the alumina raw material in a suspended state during the roasting process, thereby achieving uniform heating and roasting and improving the roasting efficiency.

[0036] The roasting equipment frame 20 is also provided with a discharge box 23 and a turnover box 24. The discharge box 23 is located below the roasting machine box 14 and is used to collect the roasted alumina products. The turnover box 24 is located on the side of the discharge box 23 and is used to temporarily store the alumina raw materials and products to be roasted or roasted, and is connected to the operation station of the next process through the station connection track 21, which is convenient for logistics turnover and batch management.

[0037] The side edge of the roasting equipment rack 20 is also provided with a preheating heating machine 15 and a preheating heating pipe 16 installed on the preheating heating machine 15. The output end of the preheating heating machine 15 is divided into two groups of preheating heating pipes 16, and the preheating heating pipes 16 are respectively located on both sides of the roasting machine box 14 and pass into the inner cavity of the preheating machine box 13; the top of the preheating machine box 13 is also provided with a preheating ventilation pump 18, and two preheating ventilation pumps 18 are provided and respectively located on both sides of the roasting machine box 14, and the preheating ventilation pumps 18 are provided with preheating ventilation joints 17, and the air supply end of the preheating ventilation pump 18 passes into the inner cavity of the preheating machine box 13;

[0038] In this embodiment, a preheating heating machine 15 is independently provided. This design makes the preheating heating system an independent heat source unit, which can work independently of the high-temperature heating system, thereby improving the flexibility and controllability of thermal energy. The output end of the preheating heating machine 15 is divided into two groups of preheating heating pipes 16, which are respectively located on both sides of the roasting machine box 14 and extend into the inner cavity of the preheating machine box 13. The heat medium (such as steam, heat transfer oil, etc.) circulating in the preheating heating pipe 16 transfers heat to the alumina raw material in the preheating machine box 13 to achieve the preheating treatment of the raw material. The design of the preheating machine box 13 also focuses on the full utilization of thermal energy. In addition to receiving the heat from the preheating heating pipe 16, two preheating ventilation pumps 18 are independently provided on the top of the preheating machine box 13. The two preheating ventilation pumps 18 are respectively located on both sides of the roasting machine box 14 and are connected to the preheating machine box 13 through the preheating ventilation joint 17. The function of the preheating ventilation pump 18 is to send hot air or preheated gas into the preheating box 13 to further increase the temperature of the alumina raw material and promote uniform heat distribution. Since the preheating ventilation pump 18 is independently set, its working parameters can be adjusted according to actual needs to meet the preheating requirements of different alumina varieties.

[0039] The top of the roasting machine box 14 is provided with an exhaust system 26, and the design of the exhaust system 26 takes into account the pressure balance inside the roasting machine box 14 and the flow direction of the exhaust gas. The exhaust pipe is connected to the inside of the roasting machine box 14, and can smoothly guide the exhaust gas to the exhaust valve. The exhaust valve is automatically adjusted according to the pressure change and the exhaust gas emission during the roasting process to ensure the smooth discharge of the exhaust gas. At the same time, the exhaust gas treatment device can purify the exhaust gas, remove the harmful substances therein, and meet the environmental emission standards.

[0040] In one embodiment, see Figure 1 , Figure 2 and Figure 3 Based on the contents of the above embodiment, the specific implementation structure of the baking box 14 is designed as follows:

[0041] The main body of the roasting machine box 14 is a roasting main box 32, the top outer shell of the roasting main box 32 is provided with a roasting outer box 31, the bottom of the roasting main box 32 is provided with a heat box 33, the upper layer of the roasting outer box 31 is provided with an exhaust layer 38, and the exhaust system 26 is connected to the exhaust layer 38.

[0042] The heat-through box 33 is located in the middle area of ​​the inner space of the preheating chassis 13, and the bottom side edge of the heat-through box 33 is connected to the output pipe of the high-temperature heat pump 12 through a connecting flow pump. Side wing heat-through machines 34 are installed on the two side walls of the heat-through box 33, and the left and right areas of the inner space of the preheating chassis 13 are respectively provided with preheating airflow circulation sections 37 connected to the corresponding side wing heat-through machines 34; the output end of the preheating heat supply pipe 16 is divided into a plurality of preheating heat circulation inlets 35, and the output end of the preheating ventilation pump 18 is provided with a preheating air circulation inlet 36, and the preheating heat circulation inlet 35 and the preheating air circulation inlet 36 both lead to the corresponding preheating airflow turnover section 37.

[0043] The preheating heat supply pipe 16 receives high-temperature heat energy from an external heat source, and its output end is designed as a plurality of preheating heat circulation inlets 35, which are evenly distributed on the left and right sides of the preheating chassis 13 and directly connected to the preheating air flow turnover interval 37. Such a design improves the uniformity of heat energy distribution and lays a good foundation for the subsequent high-temperature roasting stage. At the same time, the preheating ventilation pump 18 is an auxiliary device, and its output end is connected to the preheating air flow inlet 36, which is also connected to the preheating air flow turnover interval 37. By adjusting the working state of the preheating ventilation pump 18, the speed and flow rate of the preheating air flow can be accurately controlled, thereby further adjusting the temperature gradient during the preheating process to meet the preheating requirements of different varieties of alumina. In addition, the exhaust layer 38 on the top of the roasting main box 32 is connected to the exhaust system 26 to ensure that the waste gas generated during the roasting process can be discharged in time, avoiding the accumulation of waste gas in the roasting device, thereby improving the roasting efficiency and product quality.

[0044] In one embodiment, see Figure 2 and Figure 4 Based on the contents of the above embodiments, this embodiment also has the following technical designs:

[0045] A discharge valve port 41 is provided at the midpoint of the bottom of the heat box 33, a cooling zone 42 is provided at the top of the discharge chamber 23, the cooling zone 42 is located directly below the heat box 33 and is connected to the discharge valve port 41, a receiving hopper 43 is provided at the bottom of the cooling zone 42, and a discharge port 44 is provided at the bottom of the hopper body of the receiving hopper 43. A support fence 51 is also provided in the middle area of ​​the inner space of the preheating chassis 13. The support fence 51 is arranged on the periphery of the roasting chassis 14 and the bottom of the support fence 51 is supported on the equipment platform 25 through a fixing frame 52; a transverse bottom bracket 53 is provided on the support fence 51, and an inner bellows 55 is installed on both side ends of the transverse bottom bracket 53 through a bellows frame 54, and cold air panels 56 are respectively provided on the inner bellows 55, and the cold air panels 56 are arranged obliquely at the inner end of the lower plane of the inner bellows 55, and the blowing surfaces of the cold air panels 56 are both facing the discharge valve port 41, and the cold air panels 56 on both sides form an "eight"-shaped structure.

[0046] In the suspension roasting process of various types of alumina, efficient and stable discharge and cooling mechanism is the key to ensure product quality and production efficiency. The design of this device aims to optimize the initial cooling process of discharge.

[0047] The heat box 33 is the bottom structure of the alumina roasting. When the roasting is completed, the alumina particles enter the next link through the discharge valve port 41. The design of the support fence 51 and the inner bellows 55 in the preheating box 13 provides double protection for the initial cooling during the discharge. The support fence 51 not only firmly supports the roasting box 14, but also cleverly installs the inner bellows 55 through the transverse bottom bracket 53 and the bellows frame 54 set thereon. The cold air panel 56 on the inner bellows 55, with its unique inclined setting and "eight"-shaped structure, ensures that the cold air can be evenly blown to the discharge valve port 41 and the surrounding alumina particles, achieving a more efficient initial cooling effect, quickly taking away the residual heat on the alumina particles, and preventing them from deteriorating or being damaged due to excessive temperature during the subsequent processing. The discharge port 44 set at the bottom of the hopper body of the receiving hopper 43 can adjust the opening degree according to production needs to control the discharge speed of the alumina particles. It is convenient for subsequent transportation and processing.

[0048] In one embodiment, see Figure 1 , Figure 2 and Figure 5 Based on the contents of the above embodiments, this embodiment also has the following technical designs:

[0049] During the suspension roasting of multiple varieties of alumina, the exhaust system 26 should not only efficiently discharge the waste gas generated during the roasting process, but also effectively prevent the alumina material from being lost along with the waste gas. In this embodiment, a top bracket 61, a support substrate 62 mounted on the top bracket 61, and a top box support frame 63 mounted on the support substrate 62 are provided at the bottom of the exhaust layer 38. The top bracket 61 is installed on the inner wall of the roasting outer box 31, and a material interception section 64 is provided on the top box support frame 63.

[0050] The exhaust layer 38 is located at the top of the roasting outer box 31, and its bottom is firmly installed on the inner wall of the roasting outer box 31 through the top bracket 61. The supporting substrate 62 further carries the top box support frame 63. The existence of this frame structure provides a basis for the setting of the material interception interval 64. The material interception interval 64 is designed to effectively block the alumina material from being discharged along with the exhaust gas during the exhaust process. The material interception interval 64 may be composed of multiple layers of fine filters, grilles or other materials with blocking functions. The selection and layout of these materials have been carefully calculated and optimized to ensure that they can effectively block the material without causing excessive obstruction to the smooth discharge of the exhaust gas.

[0051] In addition, the material interception section 64 may also be equipped with a vibration device or an airflow adjustment device to regularly clean the intercepted aluminum oxide material or adjust the speed and flow rate of the exhaust gas passing through, thereby further improving its working efficiency and service life.

[0052] In one embodiment, see Figure 5 , Figure 6 and Figure 7 Based on the contents of the above embodiments, this embodiment also has the following technical designs:

[0053] A plurality of temperature measuring components 66 are also provided in the exhaust layer 38 to monitor the operating temperature of the alumina suspension roasting.

[0054] The temperature measuring assembly 66 includes a temperature sensing adjustment member 70 and a temperature sensor 80; a wing mounting plate 65 is installed on the box wall of the exhaust layer 38, and the temperature sensing adjustment member 70 includes a fixing seat 71 installed on the wing mounting plate 65, a steering cylinder 72 arranged on the fixing seat 71, and a steering wheel 73 installed on the steering cylinder 72, a sensor mounting seat 74 is installed on the steering wheel 73, and the temperature sensor 80 is fixed on the sensor mounting seat 74; the combined design of the steering cylinder 72 and the steering wheel 73 gives the temperature sensor 80 extremely high flexibility and directivity. By adjusting the angle of the steering cylinder 72 and the rotation of the steering wheel 73, the sensor measuring cylinder 83 can be accurately aligned with the key temperature measurement area in the exhaust layer, which is crucial for capturing accurate temperature data.

[0055] The temperature sensor 80 includes a sensor chassis 81, a sensor barrel 82 and a sensor measuring barrel 83, and the sensor chassis 81, the sensor barrel 82 and the sensor measuring barrel 83 are installed in an integrated manner. An airflow introduction cavity 84 is provided in the sensor measuring barrel 83, and an annular measuring instrument 85 is provided in the airflow introduction cavity 84. One end of the annular measuring instrument 85 is provided with a plurality of temperature sensing ends 86 at the outer mouth of the sensor measuring barrel 83, and the other end of the annular measuring instrument 85 is provided with a potential connecting line 87, which extends into the sensor chassis 81 along the sensor barrel 82 and is connected to the compensation end inside the sensor chassis 81.

[0056] As the main part of the temperature sensor 80, the sensor chassis 81 not only provides a sturdy shell protection, but also has built-in signal processing circuits and compensation components. These components are responsible for receiving the electrical signals from the ring measuring instrument 85, amplifying, filtering and compensating, and finally outputting accurate temperature readings. The sensor barrel 82 is a bridge connecting the sensor chassis 81 and the sensor measuring barrel 83. A channel is designed inside to accommodate the potential connection line 87 to ensure that the electrical signal can be smoothly transmitted from the measuring end to the processing end. At the same time, the sensor barrel 82 also has a certain heat insulation and protection function to prevent the external environment from interfering with the temperature measurement. The sensor measuring tube 83 is the direct measuring part of the temperature sensor 80, and an air flow introduction chamber 84 is arranged inside. The high-temperature gas rising to the exhaust layer 38 enters the air flow introduction chamber 84 and contacts the annular measuring instrument 85. The annular measuring instrument 85 adopts the principle of thermocouple or thermal resistor, and directly contacts the gas through the temperature sensing end 86 to convert the temperature into potential difference. These potential differences are transmitted to the compensation end in the sensor chassis 81 through the potential connecting line 87.

[0057] When the gas in the exhaust layer 38 flows through the sensor measuring tube 83, the airflow introduction chamber 84 can introduce the gas into the measuring area. At this time, the temperature sensing end 86 of the annular measuring instrument 85 is in direct contact with the gas, and the temperature is converted into a potential difference according to the principle of thermocouple or thermal resistor. These potential differences are transmitted to the signal processing circuit in the sensor chassis 81 through the potential connection line 87. In the sensor chassis 81, the signal processing circuit amplifies, filters and compensates the received electrical signal. Among them, the compensation element is used to correct the measurement error caused by factors such as ambient temperature changes or component aging, ensuring that the output temperature reading is accurate and reliable. Finally, the processed temperature reading is output through the interface for use by the control system of the suspension roasting device. Accurate measurement and real-time monitoring of the operating temperature of alumina suspension roasting is achieved, providing strong support for the optimization of the alumina suspension roasting process.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A suspension roasting device for multiple types of alumina, comprising a roasting equipment frame (20) and a roasting kettle (10) mounted on the roasting equipment frame (20); characterized in that: The roasting kettle (10) comprises a high-temperature heating machine (11), a high-temperature heating pump (12), a preheating cabinet (13) and a roasting cabinet (14); The roasting kettle (10) is provided with an equipment platform (25), the preheating chassis (13) is mounted on the equipment platform (25), the roasting chassis (14) is mounted on the preheating chassis (13), and the bottom of the roasting chassis (14) extends into the inner cavity of the preheating chassis (13) and is in communication with the inner space of the preheating chassis (13); The roasting equipment frame (20) is provided with a high-temperature machine installation compartment (22), the high-temperature heat supply machine (11) is installed in the compartment of the high-temperature machine installation compartment (22), the roasting equipment frame (20) is also provided with a discharge compartment (23) and a turnover compartment (24) located at the side edge of the discharge compartment (23), the high-temperature heat supply pump (12) is installed at the inner compartment side edge of the discharge compartment (23), the input end of the high-temperature heat supply pump (12) is connected to the heat source output end of the high-temperature heat supply machine (11), and the heat source output end of the high-temperature heat supply pump (12) is connected to the bottom of the roasting machine box (14); A preheating heating machine (15) and a preheating heating pipe (16) installed on the preheating heating machine (15) are also provided on the side edge of the roasting equipment frame (20); the output end of the preheating heating machine (15) is divided into two groups of preheating heating pipes (16); the preheating heating pipes (16) are respectively located on both sides of the roasting machine box (14) and are connected to the inner cavity of the preheating machine box (13); A preheating ventilation pump (18) is also provided on the top of the preheating chassis (13). Two preheating ventilation pumps (18) are provided and are respectively located on both sides of the roasting chassis (14). A preheating ventilation connector (17) is provided on each of the preheating ventilation pumps (18). The air supply end of the preheating ventilation pump (18) is connected to the inner cavity of the preheating chassis (13). An exhaust system (26) is provided on the top of the roasting machine box (14).

2. The suspension roasting device for multiple types of alumina according to claim 1, characterized in that: The main body of the roasting machine box (14) is a roasting main box (32), the top of the roasting main box (32) is covered with a roasting outer box (31), the bottom of the roasting main box (32) is provided with a heat-conducting box (33), the upper layer of the roasting outer box (31) is provided with an exhaust layer (38), and the exhaust system (26) is connected to the exhaust layer (38).

3. The suspension roasting device for multiple types of alumina according to claim 2, characterized in that: The heat-transfer box (33) is located in the middle area of ​​the inner space of the preheating machine box (13); the bottom side edge of the heat-transfer box (33) is connected to the output pipe of the high-temperature heat supply pump (12) via a flow connection pump; wing heat-transfer machines (34) are installed on both side walls of the heat-transfer box (33); and the left and right areas of the inner space of the preheating machine box (13) are respectively provided with preheating airflow circulation sections (37) connected to corresponding wing heat-transfer machines (34).

4. The suspension roasting device for multiple types of alumina according to claim 3, characterized in that: The output end of the preheating heat supply pipe (16) is divided into a plurality of preheating heat circulation inlets (35), and the output end of the preheating ventilation pump (18) is provided with a preheating air circulation inlet (36), and both the preheating heat circulation inlet (35) and the preheating air circulation inlet (36) are connected to a corresponding preheating air flow circulation zone (37).

5. The suspension roasting device for multiple types of alumina according to claim 2, characterized in that: A discharge valve opening (41) is provided at the midpoint of the bottom of the heat-transmitting box (33), a cooling zone (42) is provided at the top of the discharge chamber (23), the cooling zone (42) is located directly below the heat-transmitting box (33) and is in contact with the discharge valve opening (41), a receiving hopper (43) is provided at the bottom of the cooling zone (42), and a discharge opening (44) is provided at the bottom of the hopper body of the receiving hopper (43).

6. The suspension roasting device for multiple types of alumina according to claim 5, characterized in that: A guardrail (51) is also provided in the middle region of the inner space of the preheating cabinet (13). The guardrail (51) is arranged on the periphery of the roasting cabinet (14) and the bottom of the guardrail (51) is supported on the equipment platform (25) via a fixing frame (52).

7. The suspension roasting device for multiple types of alumina according to claim 6, characterized in that: The support fence (51) is provided with a transverse bottom bracket (53), and inner bellows (55) are installed on both side ends of the transverse bottom bracket (53) through bellows frames (54). Cold air panels (56) are respectively provided on the inner bellows (55), and the cold air panels (56) are arranged at an angle at the inner end of the lower plane of the inner bellows (55). The blowing surfaces of the cold air panels (56) are both facing the discharge valve port (41), and the cold air panels (56) on both sides form an "eight"-shaped structure.

8. The suspension roasting device for multiple types of alumina according to claim 2, characterized in that: The bottom of the exhaust layer (38) is provided with a top bracket (61), a supporting substrate (62) mounted on the top bracket (61), and a top box support frame (63) mounted on the supporting substrate (62); the top bracket (61) is mounted on the inner wall of the roasting outer box (31); and the top box support frame (63) is provided with a material interception section (64).

9. The suspension roasting device for multiple types of alumina according to claim 8, characterized in that: A plurality of temperature measuring components (66) are also arranged in the exhaust layer (38), and the temperature measuring components (66) include a temperature sensing adjustment component (70) and a temperature sensor (80); A wing mounting plate (65) is mounted on the box wall of the exhaust layer (38); the temperature sensing adjustment member (70) comprises a fixing seat (71) mounted on the wing mounting plate (65), a steering cylinder (72) disposed on the fixing seat (71), and a steering wheel (73) mounted on the steering cylinder (72); a sensor mounting seat (74) is mounted on the steering wheel (73); and the temperature sensor (80) is fixed on the sensor mounting seat (74).

10. The suspension roasting device for multiple types of alumina according to claim 9, characterized in that: The temperature sensor (80) comprises a sensor case (81), a sensor barrel (82) and a sensor measuring barrel (83); the sensor case (81), the sensor barrel (82) and the sensor measuring barrel (83) are installed in an integrated manner; an airflow introduction chamber (84) is provided in the sensor measuring barrel (83); an annular measuring instrument (85) is provided in the airflow introduction chamber (84); one end of the annular measuring instrument (85) is provided with a plurality of temperature sensing ends (86) at the outer opening of the sensor measuring barrel (83); the other end of the annular measuring instrument (85) is provided with a potential connecting line (87); the potential connecting line (87) extends into the sensor case (81) along the sensor barrel (82) and is connected to a compensation end inside the sensor case (81).

Images