Industrial waste heat recycling device

Abstract

The utility model relates to the technical field of industrial waste heat recovery, in particular to an industrial waste heat recycling device, which screens out large-particle dust and impurities in air through a filter device, prevents solid particles from entering a subsequent air heat exchange pipeline to cause pipeline blockage, regularly cleans the filter device through a cleaning device, and improves the working efficiency. According to the air filtering device, the air filtering efficiency of the filtering device is guaranteed, the maintenance frequency of operators is reduced, filtered solid particles are smashed through the smashing device so that subsequent transportation of the solid particles can be facilitated, the output speed of the solid particles is controlled through the discharging device, and the practicability of the device is improved; comprising a filtering device, a cleaning device, a smashing device and a discharging device, the cleaning device is installed on the filtering device, the smashing device is installed on the filtering device, and the discharging device is connected with the smashing device.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial waste heat recovery, in particular to an industrial waste heat recovery and reuse device. Background Art

[0002] Waste heat recovery from industrial waste gas is an important energy-saving and environmental protection technology. It aims to convert the heat energy in the waste gas generated in the industrial production process into useful heat energy. Waste heat recovery absorbs or conducts the heat in the waste gas to the working medium through technical means, and then converts it into hot water, hot steam, hot air and other thermal energy resources for use in other production processes; some industrial waste gas will be mixed with a large amount of dust and solid floating matter, which needs to be filtered and screened out.

[0003] The Chinese utility model patent with application number CN202123321528.3 in the prior art involves an industrial waste heat recovery device, including a base, a cylinder, a water inlet, a motor, a rotating rod, a brush, a purification box and a drain pipe, etc., which can clean the surface of the spiral conveying pipe to prevent scale in the water from easily adhering to the surface of the spiral conveying pipe after long-term use, affecting the heating effect of waste heat on water, so that the waste heat can be fully utilized to meet the needs of users and greatly save heat energy.

[0004] However, in actual use, when the exhaust gas is mixed with a large amount of dust and solid impurities, the dust and solid impurities filtered out have high temperatures themselves, and the above device does not have the ability to recover the heat in the dust and solid impurities, resulting in a waste of heat energy. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an industrial waste heat recovery and reuse device which uses a filtering device to screen out large particles of dust and debris in the air to prevent solid particles from entering the subsequent air heat exchange pipeline and causing pipeline blockage; the filtering device is regularly cleaned by a cleaning device to ensure the filtering efficiency of the filtering device for the air, thereby reducing the maintenance frequency of operators; the filtered solid particles are crushed by a crushing device to facilitate the subsequent transportation of the solid particles; the output rate of the solid particles is controlled by a discharging device, thereby improving the practicality of the device.

[0006] The utility model discloses an industrial waste heat recovery and reuse device; it comprises a filtering device, a cleaning device, a crushing device and a discharging device, wherein the cleaning device is installed on the filtering device, the crushing device is installed on the filtering device, and the discharging device is connected to the crushing device; the large particles of dust and sundries in the air are screened out by the filtering device to prevent solid particles from entering the subsequent air heat exchange pipeline and causing pipeline blockage; the filtering device is regularly cleaned by the cleaning device to ensure the filtering efficiency of the filtering device for the air, thereby reducing the maintenance frequency of the operator; the filtered solid particles are crushed by the crushing device to facilitate the subsequent transportation of the solid particles; the output rate of the solid particles is controlled by the discharging device, thereby improving the practicability of the device.

[0007] Preferably, the filtering device includes an insulated air duct, a flange and a filter screen. The input end of the insulated air duct is connected to the exhaust gas output pipe through the flange, and the filter screen is obliquely installed in the insulated air duct through a bracket. The flange improves the connection strength between the pipes, and the filter screen is used to screen out solid debris in the exhaust gas to prevent the solid debris from entering the subsequent heat exchange pipes. The obliquely installed filter screen facilitates the automatic falling of solid particles, and is convenient for cooperating with the cleaning device to complete the self-cleaning of the equipment, thereby reducing the maintenance frequency of maintenance personnel and improving the practicability of the device.

[0008] Preferably, the cleaning device includes a bracket, a vibration motor, a metal sheet and a conveying rod. The vibration motor is installed on the upper end surface of the insulation air duct through the bracket, the lower end surface of the bracket is connected to the conveying rod, and the metal sheet is installed in the middle of the filter screen. The lower part of the conveying rod passes through the upper end surface of the insulation air duct and extends to the inside of the insulation air duct to be connected to the upper end surface of the metal sheet. The vibration motor is turned on at a regular time to transmit power to the metal sheet through the bracket and the conveying rod, driving the metal sheet to vibrate, thereby shaking off the solid particles on the lower surface of the filter screen to maintain the normal filtration efficiency of the filter screen, reduce the frequency of cleaning the inside of the device by maintenance personnel, and improve the practicability of the device.

[0009] Preferably, the crushing device includes a gear box, a driving motor, a guide plate and a crushing roller. A crushing bin is arranged at the lower part between the filter screen and the input end of the heat-insulating air duct, the crushing bin is connected to the inside of the heat-insulating air duct, a gear box is installed on the side of the crushing bin, and a driving motor is installed on the gear box. Two groups of crushing rollers are horizontally installed in the crushing bin, and a guide plate is obliquely arranged at the top edge of the crushing bin; the solid debris falling from the surface of the filter screen is guided by the guide plate arranged at the top edge of the crushing bin, so that the solid debris falls between the two groups of guide plates, and the driving motor is turned on to transmit power to the two groups of guide plates through the gear box to drive the two groups of guide plates to rotate, thereby crushing the fallen solid impurities, reducing the volume of solid particles, facilitating the subsequent transportation of solid particles, and improving the practicality of the device.

[0010] Preferably, the discharging device includes a collecting bucket, a discharging pipe, a reduction motor and a spiral blade. The collecting bucket is connected to the lower end surface of the crushing bin, the output end of the collecting bucket is connected to the discharging pipe, a discharging port is arranged on the lower side of the discharging pipe, a reduction motor is installed on the lower end surface of the discharging pipe, a spiral blade is vertically installed in the discharging pipe, and the output end of the reduction motor extends through the collecting bucket to the inside of the discharging pipe and is connected to the spiral blade. The crushed solid particles are collected by the collecting bucket, the reduction motor is turned on to transmit power to the spiral blade to drive the spiral blade to rotate, thereby transporting the solid particles downward and sending them out from the discharging port at the lower part of the discharging pipe. By controlling the output power of the reduction motor, the rotation rate of the spiral blade is changed, thereby changing the output rate of the solid particles, thereby improving the practicability of the device.

[0011] Preferably, it also includes a heat exchange sleeve and a heat exchange tube. The heat exchange sleeve is sleeved on the middle part of the discharge pipe, and the heat exchange tube is wound in the heat exchange sleeve. The residual heat in the solid particles is replaced and recovered by the heat exchange sleeve and the heat exchange tube, thereby improving the waste heat recovery efficiency of the equipment and the practicality of the device.

[0012] Preferably, it also includes a detection tube and a temperature sensor. The output end of the discharge tube is connected to the detection tube, and the temperature sensor is arranged in the middle of the lower end surface of the detection tube. The temperature of the discharged solid particles is monitored by the temperature sensor, so that the operator can adjust the discharge rate of the discharge device according to the temperature of the discharged solid particles. When the temperature is higher than the preset value, the discharge rate is controlled to decrease to increase the heat exchange time of the heat exchange tube. When the temperature is lower than the preset value, the discharge rate is increased, thereby improving the practicability of the device.

[0013] Compared with the prior art, the utility model has the following beneficial effects: large dust particles and debris in the air are screened out by the filtering device to prevent solid particles from entering the subsequent air heat exchange pipeline and causing pipeline blockage; the filtering device is regularly cleaned by the cleaning device to ensure the filtering efficiency of the filtering device for the air, thereby reducing the maintenance frequency of the operator; the filtered solid particles are crushed by the crushing device to facilitate the subsequent transportation of the solid particles; the output rate of the solid particles is controlled by the discharging device, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the first cross-sectional structure of the utility model;

[0017] Figure 4 It is a second cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a third cross-sectional structural schematic diagram of the utility model;

[0019] Markings in the attached figure: 1. Insulated air duct; 2. Flange; 3. Filter; 4. Bracket; 5. Vibration motor; 6. Metal sheet; 7. Conveyor rod; 8. Gear box; 9. Drive motor; 10. Guide plate; 11. Crushing roller; 12. Collecting bucket; 13. Discharge pipe; 14. Reduction motor; 15. Spiral blade; 16. Heat exchange sleeve; 17. Heat exchange tube; 18. Detection tube; 19. Temperature sensor. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The cleaning device is installed on the filtering device, the crushing device is installed on the filtering device, and the discharging device is connected to the crushing device;

[0022] First, the solid impurities in the exhaust gas are screened out through the filter screen 3, and the vibration motor 5 is started at a fixed time to transmit power to the metal sheet 6 through the bracket 4 and the transmission rod 7, so as to drive the metal sheet 6 to vibrate, thereby shaking off the solid particles on the lower surface of the filter screen 3, and the solid impurities dropped from the surface of the filter screen 3 are guided by the guide plate 10 arranged at the top edge of the crushing bin, so that the solid impurities fall between the two groups of guide plates 10, and the drive motor 9 is turned on to transmit power to the two groups of guide plates 10 through the gear box 8 to drive the two groups of guide plates 10 to rotate, so as to crush the dropped solid impurities, and the reduction motor 14 is turned on to transmit power to the spiral blade 15 to drive the spiral blade 15 to rotate, so as to transport the solid particles downward and send them out from the discharge port at the lower part of the discharge pipe 13, and the residual heat in the solid particles is replaced and recovered by the heat exchange sleeve 16 and the heat exchange tube 17, and the temperature of the discharged solid particles is monitored by the temperature sensor 19, and the operator can adjust the discharge rate of the discharge device according to the temperature information at the output end;

[0023] The filtering device comprises a heat preservation air duct 1, a flange 2 and a filter 3. The input end of the heat preservation air duct 1 is connected to the exhaust gas output pipe through the flange 2. The filter 3 is obliquely installed in the heat preservation air duct 1 through a bracket.

[0024] The cleaning device includes a bracket 4, a vibration motor 5, a metal sheet 6 and a transmission rod 7. The vibration motor 5 is installed on the upper end surface of the heat preservation air duct 1 through the bracket 4, and the transmission rod 7 is connected to the lower end surface of the bracket 4. The metal sheet 6 is installed on the middle part of the filter screen 3. The lower part of the transmission rod 7 passes through the upper end surface of the heat preservation air duct 1 and extends to the inside of the heat preservation air duct 1 and is connected to the upper end surface of the metal sheet 6.

[0025] The crushing device includes a gear box 8, a driving motor 9, a guide plate 10 and a crushing roller 11. A crushing bin is arranged at the lower part between the filter screen 3 and the input end of the heat preservation air duct 1. The crushing bin is connected to the inside of the heat preservation air duct 1. A gear box 8 is installed on the side of the crushing bin. The driving motor 9 is installed on the gear box 8. Two groups of crushing rollers 11 are horizontally installed in the crushing bin. A guide plate 10 is inclinedly arranged on the top edge of the crushing bin.

[0026] The discharging device includes a collecting hopper 12, a discharging pipe 13, a reduction motor 14 and a spiral blade 15. The collecting hopper 12 is connected to the lower end surface of the crushing bin, the discharging pipe 13 is connected to the output end of the collecting hopper 12, a discharging port is arranged at the lower part of the side of the discharging pipe 13, a reduction motor 14 is installed on the lower end surface of the discharging pipe 13, a spiral blade 15 is vertically installed in the discharging pipe 13, and the output end of the reduction motor 14 extends through the collecting hopper 12 to the inside of the discharging pipe 13 and is connected to the spiral blade 15;

[0027] It also includes a heat exchange sleeve 16 and a heat exchange tube 17. The heat exchange sleeve 16 is sleeved on the middle part of the discharge pipe 13, and the heat exchange tube 17 is wound in the heat exchange sleeve 16.

[0028] The large dust particles and sundries in the air are screened out by the filtering device to prevent solid particles from entering the subsequent air heat exchange pipeline and causing pipeline blockage. The filtering device is cleaned regularly by the cleaning device to ensure the filtering efficiency of the filtering device for the air, thereby reducing the maintenance frequency of the operator. The filtered solid particles are crushed by the crushing device to facilitate the subsequent transportation of the solid particles. The output rate of the solid particles is controlled by the discharging device, thereby improving the practicality of the device.

[0029] The vibration motor 5, gear box 8, drive motor 9, reduction motor 14 and temperature sensor 19 of the industrial waste heat recovery and reuse device of the utility model are purchased on the market. The technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in this field to make creative efforts.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An industrial waste heat recovery and reuse device; characterized in that: The invention comprises a filtering device, a cleaning device, a crushing device and a discharging device, wherein the cleaning device is mounted on the filtering device, the crushing device is mounted on the filtering device, and the discharging device is connected to the crushing device; the filtering device comprises a heat-insulating air duct (1), a flange (2) and a filter screen (3); the input end of the heat-insulating air duct (1) is connected to the exhaust gas output pipe via the flange (2), and the filter screen (3) is obliquely mounted in the heat-insulating air duct (1) via a bracket; the cleaning device comprises a bracket (4), a vibration motor (5), a metal sheet (6) and a transmission rod (7), A vibration motor (5) is mounted on the upper end surface of the heat-insulating air duct (1) via a bracket (4); a transmission rod (7) is connected to the lower end surface of the bracket (4); a metal sheet (6) is mounted on the middle portion of the filter screen (3); the lower portion of the transmission rod (7) passes through the upper end surface of the heat-insulating air duct (1) and extends to the inside of the heat-insulating air duct (1) and is connected to the upper end surface of the metal sheet (6); the pulverizing device comprises a gear box (8), a drive motor (9), a guide plate (10) and a pulverizing roller (11); a lower portion of the filter screen (3) is provided between the input end of the heat-insulating air duct (1) and the lower portion of the transmission rod (7). The crushing chamber is provided at the bottom, the crushing chamber is connected to the inside of the heat preservation air duct (1), a gear box (8) is installed on the side of the crushing chamber, a driving motor (9) is installed on the gear box (8), two groups of crushing rollers (11) are installed horizontally in the crushing chamber, and a guide plate (10) is inclined at the top edge of the crushing chamber; the discharge device comprises a collecting hopper (12), a discharge pipe (13), a reduction motor (14) and a spiral blade (15), the lower end surface of the crushing chamber is connected to the collecting hopper (12), and the output end of the collecting hopper (12) is connected to the discharge pipe (13), a discharge port is arranged at the lower part of the side of the discharge pipe (13), a reduction motor (14) is installed on the lower end surface of the discharge pipe (13), a spiral blade (15) is vertically installed in the discharge pipe (13), and the output end of the reduction motor (14) passes through the collecting bucket (12) and extends to the inside of the discharge pipe (13) and is connected to the spiral blade (15); and also includes a heat exchange sleeve (16) and a heat exchange tube (17), the heat exchange sleeve (16) is sleeved on the middle part of the discharge pipe (13), and the heat exchange tube (17) is wound in the heat exchange sleeve (16).

2. The industrial waste heat recovery and reuse device according to claim 1, characterized in that: It also includes a detection tube (18) and a temperature sensor (19); the output end of the discharge tube (13) is connected to the detection tube (18), and the temperature sensor (19) is arranged in the middle of the lower end surface of the detection tube (18).

Images