Recycling device for industrial solid waste in rotary kiln

Abstract

The utility model discloses a device for recycling industrial solid waste in a rotary kiln, which comprises a device body, a conveying belt device and an electronic metering belt weigher, the conveying belt device is arranged below the device body, and the electronic metering belt weigher is arranged on the right side of the conveying belt device. The device body, the conveying belt device and the electronic metering belt weigher are in telecommunication connection with a production workshop control cabinet; the device body further comprises a screening device, a drying device, a crushing device and a discharging mechanism. The device has the functions of drying and removing water vapor while screening materials, preventing the phenomenon of condensation and caking caused by the influence of the water vapor in the grinding process, and improving the combustion efficiency of the materials in the rotary kiln; materials of different specifications are screened and crushed, the crushing effect of the device is guaranteed, and the service life of fine grinding equipment is prolonged; chippings on the electronic metering belt scale are collected, complete utilization of solid waste resources is guaranteed, and the chippings are prevented from polluting the environment.

Description

Technical Field

[0001] This utility model belongs to the field of waste utilization technology, and in particular relates to a device for recycling and reusing industrial solid waste in a rotary kiln. Background Technology

[0002] In the recycling process of industrial solid waste, solid waste needs to be processed and then sent to a rotary kiln to serve as part of the fuel. While releasing heat, the harmful substances in the solid waste can be removed through combustion reaction.

[0003] In the prior art, such as the Chinese patent (CN210546976U) which discloses a device for recycling and reusing industrial solid waste in a rotary kiln, a feeding body is provided. The bottom of the feeding body is provided with a base. A chain conveyor mechanism is provided on the feeding body. A feeding bin is provided above the chain conveyor mechanism. The output end of the chain conveyor mechanism is provided with a discharge port. A crushing mechanism is provided above the discharge port. A transmission mechanism is provided on the feeding body. An electronic weighing belt scale is provided below the discharge port. A vertical mill is provided at the output end of the electronic weighing belt scale. A material conveying device is provided at the outlet end of the vertical mill. A rotary kiln is provided at the output end of the material conveying device.

[0004] This method has the following drawbacks: First, the solid waste piles, which have been stored for a long time, contain moisture. When the naturally drained waste piles are opened, the moisture inside is exposed. During the grinding process in the vertical mill, the moisture causes the powder to condense, and drying will cause the powder to clump, resulting in incomplete combustion and reduced combustion efficiency. Second, the device does not screen solid waste of different sizes, causing solid waste of different specifications to enter the same crushing device during crushing, resulting in poor crushing effect and reduced service life of the fine grinding equipment. Third, the crushed waste will always produce some debris that sticks to the conveyor belt. This debris is not collected and utilized, and will repeatedly rotate on the conveyor belt. After being vibrated by the equipment, it will fall below the device, causing waste of resources and environmental pollution.

[0005] Therefore, this paper provides a device for recycling and reusing industrial solid waste in a rotary kiln. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model discloses a device for recycling and reusing industrial solid waste in a rotary kiln. The device dries and removes moisture while screening materials, preventing condensation and agglomeration during grinding and improving the combustion efficiency of the material in the rotary kiln. It also screens and crushes materials of different specifications, ensuring the crushing effect of the device and extending the service life of the fine grinding equipment. Furthermore, it collects debris from the electronic weighing belt scale, ensuring the complete utilization of solid waste resources and preventing environmental pollution from debris.

[0007] To achieve the above-mentioned technical effects, this utility model provides a device for recycling and reusing industrial solid waste in a rotary kiln, including a device body, a conveyor belt device, and an electronic metering belt scale. The conveyor belt device is located below the device body, and the electronic metering belt scale is located to the right of the conveyor belt device. The device body, the conveyor belt device, and the electronic metering belt scale are electrically connected to the control cabinet of the production workshop. The device body also includes a screening device, a drying device, a crushing device, and a feeding mechanism. The screening device is located above the conveyor belt device, the drying device is located to the side of the screening device, the crushing device is located to the right of the screening device, and the feeding mechanism is located to the right of the electronic metering belt scale.

[0008] Preferably, the screening device further includes a drive motor, a screening rod, a cylinder, a discharge pipe a, an electric valve a, a discharge pipe b, an electric valve b, a feed inlet, and an electric valve c. The drive motor is located on the front side of the cylinder, and the output end of the drive motor is rotatably connected to the center of the cylinder via a rotating shaft. The screening rod is located on the side of the rotating shaft. The discharge pipe a is located below the cylinder. The electric valve a is located below the discharge pipe a, and a storage space is left between the top of the electric valve a and the inlet of the discharge pipe a. The discharge pipe b is located on the lower right side of the cylinder. The electric valve b is located below the discharge pipe b, and a storage space is left between the top of the electric valve b and the inlet of the discharge pipe b. The feed inlet is located on the upper left side of the cylinder. The electric valve c is located on the pipe between the feed inlet and the cylinder.

[0009] Preferably, the end of the screening rod is inclined upward.

[0010] Preferably, the drying device further includes an air inlet pipe, air valve a, a sensor, an air outlet pipe, air valve b, a bag filter, and a recovery box. The air inlet pipe is located on the upper right side of the cylinder, air valve a is located on the air inlet pipe, the sensor is located on the upper inner side of the discharge pipe a and discharge pipe b respectively and is electrically connected to the production workshop control cabinet, the air outlet pipe is located on the right side of the cylinder, air valve b is located on the air outlet pipe, the bag filter is located on the left side of the air outlet pipe, and the recovery box is located below the bag filter.

[0011] Preferably, the crushing device further includes a crushing roller and a jaw crusher, with the crushing roller located to the lower right of the discharge pipe b and the jaw crusher located to the lower right of the conveyor belt device.

[0012] Preferably, the feeding mechanism further includes a feeding hopper, a spring base, and a support. The feeding hopper is rotatably mounted on the right end of the electronic weighing belt scale, the spring base is located on the right side of the bottom of the feeding hopper, and the support is fixedly mounted below the spring base.

[0013] Preferably, the connection between the hopper and the electronic metering belt scale is slidably connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The device is equipped with a drying unit that dries and removes moisture from the material while screening it, preventing condensation and agglomeration during the grinding process and improving the combustion efficiency of the material in the rotary kiln. It also includes a screening and crushing unit that separates and crushes materials of different sizes while drying them, ensuring the crushing effect of the device and extending the service life of the fine grinding equipment. Finally, a feeding mechanism collects debris from the electronic weighing belt scale, ensuring the complete utilization of solid waste resources and preventing debris from polluting the environment. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention;

[0017] Figure 2 This is a front view of the present invention;

[0018] Figure 3 This is the left view of this utility model;

[0019] Figure 4 yes Figure 3 A sectional view of section a.

[0020] Figure 5 yes Figure 4 A partial schematic diagram of b in the middle;

[0021] Figure 6 yes Figure 4 A partial schematic diagram of c in the middle;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Conveyor belt device; 2. Electronic weighing belt scale; 3. Screening device; 4. Drying device; 5. Crushing device; 6. Feeding mechanism; 7. Drive motor; 8. Screening rod; 9. Cylinder; 10. Discharge pipe a; 11. Electric valve a; 12. Discharge pipe b; 13. Electric valve b; 14. Feed inlet; 15. Electric valve c; 16. Air inlet pipe; 17. Air valve a; 18. Air outlet pipe; 19. Air valve b; 20. Bag dust collector; 21. Recycling box; 22. Crushing roller; 23. Jaw crusher; 24. Feed hopper; 25. Spring base; 26. Support. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example 1

[0025] like Figures 1 to 6As shown:

[0026] The prior art in this embodiment has the following problems: The inventors have found the following defects in the prior art: 1. Solid waste piles that have been piled up for a long time contain moisture. When the naturally drained waste pile is opened, the part containing moisture is exposed. During the vertical mill process, the moisture will cause the powder to condense during grinding. Drying will also cause the powder to clump, resulting in incomplete combustion of the powder and reduced combustion efficiency; 2. The device does not screen and process solid waste of different sizes, resulting in solid waste of different specifications entering the same crushing device for crushing, resulting in poor crushing effect and reduced service life of fine grinding equipment; 3. After crushing, some debris will always be generated and stick to the conveyor belt. This debris is not collected and utilized, and will rotate repeatedly on the conveyor belt. After being vibrated by the equipment, it will fall below the device, causing waste of resources and environmental pollution.

[0027] Therefore, the inventor provides a device for recycling and reusing industrial solid waste in a rotary kiln, including a device body, a conveyor belt device 1, and an electronic metering belt scale 2. The conveyor belt device 1 is located below the device body, and the electronic metering belt scale is located to the right of the conveyor belt device 1. The device body, the conveyor belt device 1, and the electronic metering belt scale 2 are electrically connected to the production workshop control cabinet (not shown in the figure). The device body also includes a screening device 3, a drying device 4, a crushing device 5, and a feeding mechanism 6. The screening device 3 is located above the conveyor belt device 1, the drying device 4 is located to the side of the screening device 3, the crushing device 5 is located to the right of the screening device 3, and the feeding mechanism 6 is located to the right of the electronic metering belt scale 2.

[0028] Using the above scheme, untreated solid waste enters from above the screening device 3 and is separated into two specifications of materials after screening. During the process, the drying device 4 dries the moisture in the material pile separated by screening. Then, the two batches of materials enter the conveyor belt device 1 and the crushing device 5 respectively. The coarser material is coarsely crushed and then enters the next stage crushing device 5 for fine crushing together with the finer material previously screened. After that, it enters the electronic metering belt scale 2. The electronic metering belt scale 2 feeds the finely crushed material into the vertical mill (not shown in the figure) through the feeding mechanism 6 according to the set weight. After grinding, it is transferred to the rotary kiln (not shown in the figure) for reuse. Example 2

[0029] like Figures 1 to 6 As shown:

[0030] Furthermore, the screening device 3 also includes a drive motor 7, a screening rod 8, a cylinder 9, a discharge pipe a10, an electric valve a11, a discharge pipe b12, an electric valve b13, a feed inlet 14, and an electric valve c15. The drive motor 7 is located on the front side of the cylinder 9, and the output end of the drive motor 7 is rotatably connected to the center of the cylinder 9 through a rotating shaft. The screening rod 8 is located on the side of the rotating shaft. The discharge pipe a10 is located below the cylinder 9. The electric valve a11 is located below the discharge pipe a10, and a storage space is left between the top of the electric valve a11 and the inlet of the discharge pipe a10. The discharge pipe b12 is located on the lower right side of the cylinder 9. The electric valve b13 is located below the discharge pipe b12, and a storage space is left between the top of the electric valve b13 and the inlet of the discharge pipe b12. The feed inlet 14 is located on the upper left side of the cylinder 9. The electric valve c15 is located on the pipe between the feed inlet 14 and the cylinder 9.

[0031] Furthermore, the end of the screening rod 8 is inclined upward;

[0032] When solid waste enters through inlet 14, the workshop controller opens electric valve c15 to feed the solid waste material into cylinder 9. Then, electric valve c15 closes, and the material falls into cylinder 9 and is caught by screening rod 8. Finer material falls through the gaps in screening rod 8 and into the space between discharge pipe a10 and the top of electric valve a11 below cylinder 9. At this time, electric valve a11 closes, and the material is temporarily stored above electric valve a11. Coarser material is driven by drive motor 7 to rotate screening rod 8 clockwise. When the material rotates 90 degrees, it falls above the bottom of the previous set of screening rods 8. As it continues to rotate downward, the material slides down to the right and downward along screening rod 8. After passing through the downward inclined structure, it falls into discharge pipe b12 and is temporarily stored above electric valve b13. This completes the screening of solid waste in the feeding stage. Example 3

[0033] like Figures 1 to 6 As shown:

[0034] Furthermore, the drying device 4 also includes an air inlet pipe 16, an air valve a17, a sensor, an air outlet pipe 18, an air valve b19, a bag filter 20, and a recovery box 21. The air inlet pipe 16 is located on the upper right side of the cylinder 9, the air valve a17 is located on the air inlet pipe 16, the sensor (not shown in the figure) is located on the upper inner side of the discharge pipe a10 and the discharge pipe b12 respectively and is electrically connected to the control cabinet of the production workshop, the air outlet pipe 18 is located on the right side of the cylinder 9, the air valve b19 is located on the air outlet pipe 18, the bag filter 20 is located on the left side of the air outlet pipe 18, and the recovery box 21 is located below the bag filter 20.

[0035] During the material screening process in screening device 3, electric valves a11, b13, and c15 are closed, while air valves a17 and b19 are opened. Heated high-temperature air or treated high-temperature exhaust gas from the rotary kiln is introduced into the cylinder 9 through air inlet pipe 16 to blow and dry the material rotating clockwise. The moisture is then carried through air outlet pipe 18 to a bag filter 20 to remove dust before being discharged. The dust falls into the recovery box 21, and the dried material falls into discharge pipes a10 and b12 respectively. After the material screening and drying are completed, the transmission... Once the sensor detects that no more material is falling, the control cabinet closes the air valve A17 and opens the electric valves A11 and B13, releasing the material to the next device. Simultaneously, the electric valve C15 opens, allowing the next batch of solid waste to be processed to be added. The screening and drying process is completed using the same steps. In this way, the solid waste raw materials are dried with hot air before fine grinding to remove moisture and prevent condensation and agglomeration during the grinding process. Furthermore, the waste heat from the treated rotary kiln can be utilized for drying, improving the combustion efficiency of the material in the rotary kiln and the overall thermal efficiency of the device. Example 4

[0036] like Figures 1 to 6 As shown:

[0037] Furthermore, the crushing device 5 also includes a crushing roller 22 and a jaw crusher 23. The crushing roller 22 is located to the lower right of the discharge pipe b12, and the jaw crusher 23 is located to the lower right of the conveyor belt device 1.

[0038] The finer materials screened by the screening device 3 fall downward onto the conveyor belt device 1 and are conveyed to the jaw crusher 23 for fine crushing. The coarser materials screened by the screening device 3 fall to the crushing roller 22 through the discharge pipe b12 and are crushed. After crushing, they fall downward onto the conveyor belt device 1 and are fed to the jaw crusher 23 for fine crushing. This completes the screening and crushing of solid waste materials, ensuring the crushing effect of the device and extending the service life of the fine grinding equipment. Example 5

[0039] like Figures 1 to 6 As shown:

[0040] Furthermore, the feeding mechanism 6 also includes a feeding hopper 24, a spring base 25, and a support 26. The feeding hopper 24 is rotatably mounted on the right end of the electronic weighing belt scale 2, the spring base 25 is mounted on the bottom right side of the feeding hopper 24, and the support 26 is fixedly mounted below the spring base 25.

[0041] Furthermore, the connection between the hopper 24 and the electronic weighing belt scale 2 is slidably connected;

[0042] In this process, the finely crushed material falls from below the jaw crusher 23 onto the electronic metering belt scale 2 and is conveyed to the right onto the feed hopper 24. The debris on the electronic metering belt is scraped off by the feed hopper 24, and the material falls downward into the vertical mill by the set weight. During the process, the material falls on the right side of the feed hopper 24 and vibrates. Through the spring base 25 on the support 26, the feed hopper 24 is driven to vibrate with the connection between the feed hopper 24 and the electronic metering belt scale 2 as the shaft, shaking the debris on the feed hopper 24 into the vertical mill. This ensures the complete utilization of solid waste resources and prevents the debris on the electronic metering belt scale 2 from polluting the environment.

[0043] In summary, the device is equipped with a drying device 4 to dry and remove moisture while screening materials, preventing condensation and agglomeration during the grinding process and improving the combustion efficiency of materials in the rotary kiln; it is also equipped with a screening device 3 and a crushing device 5 to screen and crush materials of different specifications while drying them, ensuring the crushing effect of the device and extending the service life of the fine grinding equipment; and it is equipped with a feeding mechanism 6 to collect debris from the electronic metering belt scale 2, ensuring the complete utilization of solid waste resources and preventing debris from polluting the environment.

[0044] The working principle of this utility model:

[0045] When solid waste enters through inlet 14, the workshop controller opens electric valve C15, feeding the solid waste material into the cylinder 9. Then, electric valve C15 closes, and the material falls into the cylinder 9 and is caught by screening rods 8. Finer materials fall through the gaps in screening rods 8 into the space between the discharge pipe A10 below the cylinder 9 and the top of electric valve A11. At this point, electric valve A11 closes, and the material temporarily remains above it. Coarser materials are driven by the drive motor 7, which rotates the screening rods 8 clockwise. After rotating 90 degrees, the material falls above the bottom of the previous set of screening rods 8. As the material continues to rotate downwards, it follows the screening... Rod 8 slides down to the right and falls into the discharge pipe b12 after passing through the downward tilting structure. It is temporarily stored above the electric valve b13, thus completing the screening of solid waste in the feeding stage. The finer material screened by the screening device 3 falls down onto the conveyor belt device 1 and is conveyed to the jaw crusher 23 for fine crushing. The coarser material screened by the screening device 3 falls to the right through the discharge pipe b12 and falls onto the crushing roller 22 for crushing. After crushing, it falls down onto the conveyor belt device 1 and is fed to the right into the jaw crusher 23 for fine crushing. This completes the screening and crushing of solid waste materials, ensuring the crushing effect of the device and extending the service life of the fine grinding equipment.

[0046] During the material screening process of screening device 3, electric valves a11, b13, and c15 are closed, while air valves a17 and b19 are opened. Heated high-temperature air or treated high-temperature exhaust gas from the rotary kiln is introduced into cylinder 9 through air inlet pipe 16 to blow and dry the material rotating clockwise. The moisture is then carried through air outlet pipe 18 to baghouse dust collector 20 to remove dust before being discharged. The dust falls into recovery box 21, and the dried material falls into discharge pipes a10 and b12 respectively. After the material screening and drying are completed, the sensor... Once no more material is detected falling, the control cabinet closes the air valve A17 and opens the electric valves A11 and B13 to release the material to the next device. At the same time, the electric valve C15 opens to let in the next batch of solid waste material to be processed. The screening and drying work is completed in the same way. In this way, the moisture is removed by hot air drying before the solid waste material is finely ground, which prevents the phenomenon of condensation and agglomeration caused by moisture during the grinding process. The waste heat can also be utilized by drying the waste gas of the rotary kiln after treatment, which improves the combustion efficiency of the material in the rotary kiln and the overall thermal efficiency of the device.

[0047] After fine crushing, the material falls from below the jaw crusher 23 onto the electronic metering belt scale 2 and is conveyed to the right onto the feed hopper 24. The debris on the electronic metering belt is scraped off by the feed hopper 24, and the material falls downward into the vertical mill by the set weight. During the process, the material falls on the right side of the feed hopper 24 and vibrates. Through the spring base 25 on the support 26, the feed hopper 24 is driven to vibrate with the connection between the feed hopper 24 and the electronic metering belt scale 2 as the shaft, shaking the debris on the feed hopper 24 into the vertical mill, ensuring the complete utilization of solid waste resources and preventing the debris on the electronic metering belt scale 2 from polluting the environment.

[0048] This concludes the description of the working principle of the device.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of industrial solid waste recycling device in rotary kiln, including device body, conveyor belt device (1), electronic metering belt scale (2), conveyor belt device (1) is arranged below device body, motor metering belt scale is arranged in the right side of conveyor belt device (1), device body, conveyor belt device (1), electronic metering belt scale (2) are connected with production workshop control cabinet telecommunication, it is characterized by: The device body further comprises a screening device (3), a drying device (4), a crushing device (5), a discharging mechanism (6), the screening device (3) is arranged above the conveying belt device (1), the drying device (4) is arranged at the side of the screening device (3), the crushing device (5) is arranged at the right side of the screening device (3), and the discharging mechanism (6) is arranged at the right side of the electronic metering belt scale (2).

2. A recycling device of industrial solid waste in a rotary kiln according to claim 1, characterized in that: The screening device (3) further comprises a driving motor (7), a screening rod (8), a cylinder (9), a discharge pipe a (10), an electric valve a (11), a discharge pipe b (12), an electric valve b (13), an inlet (14), and an electric valve c (15), the driving motor (7) is arranged at the front side of the cylinder (9), the output end of the driving motor (7) is rotationally connected with the center of the cylinder (9) through a rotating shaft, the screening rod (8) is arranged at the side of the rotating shaft, the discharge pipe a (10) is arranged below the cylinder (9), the electric valve a (11) is arranged below the discharge pipe a (10), and a storage space is reserved at the top of the electric valve a (11) and the inlet of the discharge pipe a (10), the discharge pipe b (12) is arranged at the right lower side of the cylinder (9), the electric valve b (13) is arranged below the discharge pipe b (12), and a storage space is reserved at the top of the electric valve b (13) and the inlet of the discharge pipe b (12), the inlet (14) is arranged above the left side of the cylinder (9), and the electric valve c (15) is arranged on the pipeline between the inlet (14) and the cylinder (9).

3. An industrial solid waste recycling device in a rotary kiln according to claim 2, characterized in that: The screening rod (8) is upwardly inclined at the end.

4. The industrial solid waste recycling device of claim 1, wherein: The drying device (4) further comprises an air inlet pipe (16), an air valve a (17), a sensor, an air outlet pipe (18), an air valve b (19), a bag-type dust collector (20), and a recovery box (21), the air inlet pipe (16) is arranged above the right side of the cylinder (9), the air valve a (17) is arranged on the air inlet pipe (16), the sensor is arranged above the inner side of the discharge pipe a (10) and the discharge pipe b (12) respectively and is electrically connected with a production workshop control cabinet, the air outlet pipe (18) is arranged at the right side of the cylinder (9), the air valve b (19) is arranged on the air outlet pipe (18), the bag-type dust collector (20) is arranged at the left side of the air outlet pipe (18), and the recovery box (21) is arranged below the bag-type dust collector (20).

5. The industrial solid waste recycling device of claim 1, wherein: The crushing device (5) further comprises a crushing roller (22) and a jaw crusher (23), the crushing roller (22) is arranged below the right side of the discharge pipe b (12), and the jaw crusher (23) is arranged below the right side of the conveying belt device (1).

6. The industrial solid waste recycling device of claim 1, wherein: The discharging mechanism (6) further comprises a discharging hopper (24), a spring base (25), and a support (26), the discharging hopper (24) is rotationally arranged at the right end of the electronic metering belt scale (2), the spring base (25) is arranged at the right side of the bottom of the discharging hopper (24), and the support (26) is fixedly arranged below the spring base (25).

7. An industrial solid waste recycling device in a rotary kiln according to claim 6, characterized in that: The discharging hopper (24) is slidingly connected with the electronic metering belt scale (2).

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