Double heat source vertical drying machine

By designing a dual-heat-source vertical dryer, which utilizes steam and flue gas heating combined with rotating agitation and crushing blades, the problems of single heat source and poor heating uniformity are solved, achieving efficient sludge drying and improved energy utilization.

CN224325269UActive Publication Date: 2026-06-05HEFEI DONGFANG THERMAL POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies use a single heat source, resulting in low overall energy utilization and poor uniformity of heating during sludge drying, which affects the thorough drying of the sludge and consequently the incineration effect.

Method used

A dual-heat-source vertical dryer is adopted, combining steam and flue gas heating. Through the rotation and agitation of multiple drying mechanisms and heating pipes, and the installation of reinforcing frames and crushing blades, the sludge is ensured to be heated evenly and fully.

Benefits of technology

It improves the sludge drying effect and efficiency, reduces the footprint, enhances the energy utilization rate of thermal power plants, and ensures uniform heating and thorough drying of sludge.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double heat source vertical drying machine, including the organism, the organism upside and downside both sides are equipped with the feed inlet and the discharge gate, the organism top wall is inserted with the exhaust port through and through, be equipped with a plurality of drying mechanism and be used for driving the drive mechanism of drying mechanism rotation in the organism inner chamber, the drying mechanism includes the multiple access connector of rotating setting in the organism inner chamber both sides and the multiple heating pipe of connecting between multiple access connector, multiple access connector includes the rectifier tube of horizontal arrangement and the shunt tube of vertical setting one end in rectifier tube inboard, multiple heating pipe through connection between both sides shunt tube. The utility model discloses reasonable in structure, and the floor space is small, has guaranteed the drying effect and drying efficiency to sludge and other materials very well, has guaranteed the uniform heating and sufficient drying of sludge, and through the introduction of double heat source, has improved the energy utilization of thermal power plant very well.
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Description

Technical Field

[0001] This utility model relates to the field of drying machine technology, and in particular to a dual-heat-source vertical drying machine. Background Technology

[0002] In incineration power generation, sludge can be used as a fuel source. While the sludge is treated to be harmless, it is also used to generate heat from incineration to generate electricity. When sludge is used as fuel, it needs to be dried and pretreated to reduce its moisture content so that it can be mixed with coal, garbage or biomass fuel for incineration.

[0003] Horizontal sludge dryers have a large footprint, high requirements for the production environment, a single heat source, low overall energy utilization, and generally uneven heating during sludge drying, which makes it difficult to fully dry the sludge and affects the incineration effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as a single heat source, low overall energy utilization, and generally uneven heating during sludge drying, which hinders the thorough drying of sludge and affects incineration efficiency. Therefore, a dual-heat-source vertical dryer is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-heat-source vertical dryer includes a machine body, with an inlet and an outlet on the upper and lower sides of the machine body, respectively. A dehumidification port is inserted through the top wall of the machine body. The inner cavity of the machine body is provided with multiple drying mechanisms and a drive mechanism for driving the drying mechanisms to rotate.

[0007] The drying mechanism includes a multi-port joint rotatably arranged on both sides of the inner cavity of the machine body and a plurality of heating tubes connected between the multi-port joints. The multi-port joint includes a horizontally arranged rectifier tube and a vertically arranged branch tube at one end of the inner side of the rectifier tube. The plurality of heating tubes are connected through the branch tubes on both sides. A rotating sealing ring is rotatably fitted on the rectifier tube corresponding to the side wall of the machine body. A rotary joint is provided at one end of the outer side of the rectifier tube.

[0008] A heating interlayer is provided in the side wall of the machine body, and an air inlet and an exhaust outlet are respectively connected through the two sides of the heating interlayer.

[0009] Preferably, the multi-port connector is a reducing five-port connector, and each branch pipe is equipped with two heating tubes.

[0010] Preferably, multiple reinforcing frames are fitted around the outer sides of the multiple heating tubes.

[0011] More preferably, the reinforcing frame includes a stabilizing sleeve disposed on the outside of the heating tube, a plurality of connecting rods connecting the stabilizing sleeves, and reinforcing rods arranged alternately among the plurality of connecting rods.

[0012] More preferably, multiple crushing blades are provided between the multiple connecting rods, and multiple crushing blades are provided on each of the crushing blades.

[0013] Preferably, the drying mechanism is configured as three.

[0014] More preferably, the drive mechanism includes a gear ring fitted on the rectifier tube, and multiple gear rings mesh with each other, one of which meshes with a drive gear, and a motor for driving the drive gear to rotate is mounted on the body via a bracket.

[0015] Preferably, the inner cavity width of the machine body is configured to correspond to the multi-port connector.

[0016] Preferably, the air inlet is located on the lower part of the side wall of the machine body, and the exhaust port is located on the upper part of the side wall of the machine body.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this utility model, steam is introduced to heat the inside of the material, and flue gas is introduced to heat the entire inner cavity of the machine, which makes good use of the heat energy generated by incineration power generation and also improves the drying effect of sludge.

[0019] 2. In this utility model, multiple drying mechanisms are set up, and the material is stirred by the rotation of the heating tube to ensure uniform and sufficient heating of the material, thereby ensuring good drying effect and drying efficiency.

[0020] 3. In this utility model, the structural strength of the heating tube is increased by reinforcing the frame, and the sludge is crushed by the crushing blades and crushing knife, which facilitates the rotation of the heating tube, improves the turning effect of the sludge, and ensures that the sludge is fully dried.

[0021] This utility model has a reasonable structure and occupies little space, which can effectively ensure the drying effect and efficiency of materials such as sludge, ensure uniform heating and full drying of sludge, and improve the energy utilization rate of thermal power plants by introducing dual heat sources. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the appearance structure of this utility model.

[0023] Figure 2 This is a bottom view of the structure of this utility model.

[0024] Figure 3 This is a side structural cross-sectional view of the present invention.

[0025] Figure 4 This is a schematic diagram of the drying mechanism of this utility model.

[0026] Figure 5 This is a schematic diagram of the heating tube structure of this utility model.

[0027] Figure 6 This is a schematic diagram of the reinforcing frame and crushing blade structure of this utility model.

[0028] Figure 7 This is a schematic diagram of the reinforcing frame structure of this utility model.

[0029] Figure 8 This is a schematic diagram of the crushing blade structure of this utility model.

[0030] In the diagram: 1. Body, 11. Feed inlet, 12. Discharge outlet, 13. Exhaust outlet, 2. Heating jacket, 21. Air inlet, 22. Exhaust outlet, 3. Drying mechanism, 31. Multi-port connector, 311. Rectifier pipe, 312. Diverter pipe, 32. Rotary sealing ring, 33. Rotary joint, 34. Heating tube, 35. Reinforcing frame, 351. Stabilizing sleeve, 352. Connecting rod, 353. Reinforcing rod, 36. Crushing blade, 361. Drive mechanism, 4. Gear ring, 41. Drive gear, 42. Motor, 43. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Reference Figure 1-8 A dual-heat-source vertical dryer includes a body 1. The body 1 has an inlet 11 and an outlet 12 on its upper and lower sides, respectively. The outlet 12 has a discharge gate. A dehumidification port 13 is inserted through the top wall of the body 1. The inner cavity of the body 1 contains multiple drying mechanisms 3 and a drive mechanism 4 for rotating the drying mechanisms 3. The drive mechanism 4 drives the drying mechanisms 3 to rotate, thereby agitating and drying the material. The other end of the dehumidification port 13 can be connected to an air extraction device to discharge evaporated water vapor.

[0033] The drying mechanism 3 includes a multi-port connector 31 rotatably arranged on both sides of the inner cavity of the machine body 1, and multiple heating tubes 34 connected between the multi-port connectors 31. Each multi-port connector 31 includes a horizontally arranged rectifier tube 311 and a vertically arranged branch tube 312 at one end of the inner side of the rectifier tube 311. Multiple heating tubes 34 are connected through the branch tubes 312 on both sides. A rotating sealing ring 32 is rotatably fitted onto the rectifier tube 311 corresponding to the side wall of the machine body 1. A rotary joint 33 is provided at one end of each rectifier tube 311. The rotary joint 33 is connected to a steam supply pipe to introduce steam into the heating tubes 34 to heat materials such as sludge. The rotating sealing ring 32 is used to install the rectifier tube 311, ensuring a sealing effect at the rectifier tube 311 without affecting its rotation. One side of the rectifier pipe 311 is connected to the steam supply device and is fed into the heating pipe 34 through the diverter pipe 312 to heat and dry the sludge and other materials. The rotation of the rectifier pipe 311 drives the diverter pipe 312 to rotate, so that the rotation of the heating pipe 34 can stir the sludge and other materials, improve the drying efficiency of the sludge and improve the drying effect.

[0034] A heating jacket 2 is provided in the side wall of the machine body 1, with an air inlet 21 and an exhaust outlet 22 respectively connected to both sides of the heating jacket 2. Flue gas is introduced into the heating jacket 2 through the air inlet 21 to assist in heating the inner cavity of the machine body 1, and is discharged through the exhaust outlet 22, thus assisting in heating the inner cavity of the machine body 1 and improving the drying efficiency of sludge. At the same time, it also improves the heat preservation effect of the inner cavity of the machine body 1 and reduces heat loss.

[0035] Based on the above technical solution, when sludge needs to be dried, the sludge is fed into the machine body 1 through the feed inlet 11. Steam is introduced into the rectifier pipe 311 through the rotary joint 33, and then enters the heating pipe 34 after being split. At the same time, the drive mechanism 4 drives the rectifier pipe 311 to rotate, which in turn drives the split pipe 312 and the heating pipe 34 to rotate, so as to stir and heat the sludge, ensuring uniform heating of the sludge and ensuring a stable heating and drying effect. Furthermore, the multi-layered drying mechanism 3 heats the sludge in layers, ensuring a thorough drying effect.

[0036] In this technical solution, such as Figure 1-5 As shown, the multi-port connector 31 is a reducing five-way connector, and each branch pipe 312 is equipped with two heating tubes 34. Using a reducing five-way connector, the rectifier pipe 311 has a larger inner diameter, and the branch pipes 312 have a smaller inner diameter, to ensure the steam flow rate in the heating tubes 34 and to guarantee the heating and drying effect on the sludge. The four branch pipes 312, each equipped with two heating tubes 34, ensure sufficient heating of the sludge and also guarantee efficient stirring and heating of the sludge.

[0037] In this technical solution, such as Figure 1-5As shown, multiple reinforcing frames 35 are fitted around the outer sides of the multiple heating tubes 34. Each reinforcing frame 35 includes a stabilizing sleeve 351 disposed outside the heating tube 34, multiple connecting rods 352 connecting the stabilizing sleeves 351, and reinforcing rods 353 staggered among the connecting rods 352. The design of the connecting rods 352 and reinforcing rods 353 enhances the strength of the heating tubes 34 during rotation, ensuring the stability of the heating tubes when agitating materials and improving the structural strength of the heating tubes 34 during rotation.

[0038] In this technical solution, such as Figure 1-8 As shown, multiple crushing blades 36 are provided between the multiple connecting rods 352, and multiple crushing cutters 361 are provided on each of the crushing blades 36. The crushing blades 36 and crushing cutters 361 crush the sludge to reduce the resistance encountered by the heating tube 34 when agitating the sludge and improve the agitation effect of the sludge.

[0039] In this technical solution, such as Figure 1-3 As shown, the drying mechanism 3 is configured with three units. The driving mechanism 4 includes a gear ring 41 fitted onto the rectifier tube 311, and multiple gear rings 41 mesh with each other. One gear ring 41 meshes with a drive gear 42. A motor 43 for driving the drive gear 42 is mounted on the machine body 1 via a bracket. A reducer can also be installed between the motor 43 and the drive gear 42 to increase the output torque of the motor 43. Setting three drying mechanisms 3 facilitates the meshing and rotation of multiple gear rings 41. To ensure the synchronous rotation effect among the three drying mechanisms 3, driving mechanisms 4 can also be installed on both sides of the rectifier tube 311 to ensure the rotational torque of the heating tube 34 and ensure the stirring effect on the sludge.

[0040] In this technical solution, such as Figure 1-3 As shown, the inner cavity width of the machine body 1 corresponds to the multi-port connector 31. This reduces the dead angles of stirring on both sides of the heating tube 34, improves the stirring and heating effect on the sludge, ensures uniform drying of the sludge, and enhances the drying effect of the sludge.

[0041] In this technical solution, such as Figure 1-3 As shown, the air inlet 21 is located on the lower part of the side wall of the machine body 1, and the exhaust port 22 is located on the upper part of the side wall of the machine body 1. This ensures the heating effect on the inner cavity of the machine body 1, as well as the uniformity of heating, and improves the overall heating effect on the sludge. By using flue gas to assist in heating the inner cavity of the machine body 1, the heating effect is improved, the utilization rate of flue gas is increased, and the heat recovery and utilization effect is enhanced.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dual-heat-source vertical drying machine, comprising a body (1), wherein the body (1) is provided with an inlet (11) and an outlet (12) on its upper and lower sides respectively, characterized in that, The top wall of the body (1) is provided with a dehumidification port (13), and the inner cavity of the body (1) is provided with a plurality of drying mechanisms (3) and a drive mechanism (4) for driving the drying mechanism (3) to rotate. The drying mechanism (3) includes a multi-port connector (31) rotatably arranged on both sides of the inner cavity of the body (1) and a plurality of heating tubes (34) connected between the multi-port connectors (31). The multi-port connector (31) includes a horizontally arranged rectifier tube (311) and a vertically arranged branch tube (312) on one side of the rectifier tube (311). The plurality of heating tubes (34) are connected between the branch tubes (312) on both sides. A rotating sealing ring (32) is rotatably fitted on the rectifier tube (311) corresponding to the side wall of the body (1). A rotary connector (33) is provided on one side of the rectifier tube (311). The body (1) has a heating jacket (2) in the side wall, and the heating jacket (2) has an air inlet (21) and an exhaust outlet (22) connected through both sides.

2. The dual-heat-source vertical drying machine according to claim 1, characterized in that, The multi-port connector (31) is a reducing five-way connector, and two heating tubes (34) are provided on each branch pipe (312).

3. The dual-heat-source vertical drying machine according to claim 1, characterized in that, Multiple reinforcing frames (35) are fitted around the outside of the multiple heating tubes (34).

4. A dual-heat-source vertical drying machine according to claim 3, characterized in that, The reinforcing frame (35) includes a stabilizing sleeve (351) disposed outside the heating tube (34), a plurality of connecting rods (352) connecting the stabilizing sleeves (351), and reinforcing rods (353) interleaved among the plurality of connecting rods (352).

5. A dual-heat-source vertical drying machine according to claim 4, characterized in that, Multiple crushing blades (36) are provided between the multiple connecting rods (352), and multiple crushing blades (361) are provided on each crushing blade (36).

6. A dual-heat-source vertical drying machine according to claim 1, characterized in that, The drying mechanism (3) is configured as three.

7. A dual-heat-source vertical drying machine according to claim 6, characterized in that, The drive mechanism (4) includes a gear ring (41) fitted on the rectifier tube (311), and multiple gear rings (41) mesh with each other. One of the gear rings (41) meshes with a drive gear (42). A motor (43) for driving the drive gear (42) to rotate is mounted on the body (1) via a bracket.

8. A dual-heat-source vertical drying machine according to claim 1, characterized in that, The inner cavity width of the body (1) corresponds to the multi-port connector (31).

9. A dual-heat-source vertical drying machine according to claim 1, characterized in that, The air inlet (21) is located on the lower part of the side wall of the body (1), and the exhaust port (22) is located on the upper part of the side wall of the body (1).