A twin-shaft humidifying mixer for coking
By setting a stepped structure and a bladeless mixing shaft in the body of the twin-shaft mixer, combined with multi-stage mixing and baffle diversion of the sprayer, the clogging problem of powdery materials during spraying is solved, and uniform humidification and stable conveying of materials are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIXI TIANHE COKING CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
In existing twin-shaft humidifying mixers, powdery materials are easily mixed with water in the upper spray space under centrifugal force during spraying, forming a blockage layer and affecting material conveying.
A twin-shaft mixer with a stepped structure is designed, with a sprayer located at the material drop position. The mixing shaft has no blades. Through multi-stage mixing and the baffle plate of the sprayer, uniform humidification is achieved and clogging is avoided.
It achieves uniform humidification of powdered materials, avoids clogging, ensures the stability and quality of material conveying, and adapts to the mixing needs at different stages.
Smart Images
Figure CN224270827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coking production technology, specifically to a twin-shaft humidifying mixer for coking. Background Technology
[0002] During the coking process, a large amount of powdery materials, such as coke powder, are generated. These powdery materials are prone to generating dust during transportation and subsequent processing, which not only pollutes the environment but may also pose safety hazards. Furthermore, uneven material moisture content can affect the stability of subsequent processes and product quality. A twin-shaft humidifying mixer can spray water to agitate and mix these powdery materials. By controlling the amount of water added, the material can achieve the appropriate moisture content, facilitating transportation and subsequent processing.
[0003] Twin-shaft humidifying mixers typically utilize the synchronous rotation of two symmetrically arranged mixing shafts to simultaneously convey powdered materials and add water for mixing. The two mixing shafts are generally equipped with spiral blades or paddle blades. The material enters through the feed inlet and, under the action of the mixing shafts, is simultaneously mixed and pushed towards the discharge outlet. At the same time, a spray system sprays water into the chamber, ensuring uniform humidification of the material and achieving the goal of preventing dry ash buildup and water seepage.
[0004] In existing technologies, spraying is usually done on the upper part of the spiral blades. However, the raw materials can easily enter the upper spraying space under centrifugal force, mix with water, clump together and adhere to the space, forming a blockage layer that the spiral blades cannot transport. Utility Model Content
[0005] This invention addresses the technical problem in existing technologies where, when spraying material above the spiral blades, raw materials easily enter the upper spraying space under centrifugal force, mix with water, clump together, and adhere to the space, forming a blockage layer that the spiral blades cannot transport. Therefore, this invention provides a twin-shaft humidifying mixer for coking.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a twin-shaft humidifying mixer for coking, comprising: a twin-shaft mixer body, the twin-shaft mixer body having multiple steps arranged along the feeding direction, the lower part of the tail end of the upper twin-shaft mixer body being connected to the upper part of the head end of the upper twin-shaft mixer body via a feeding pipe, the head end of the uppermost twin-shaft mixer body being connected to a hopper, and the lower part of the tail end of the lowermost twin-shaft mixer body having a discharge port, all twin-shaft mixer bodies being connected to a frame, a sprayer being connected to the twin-shaft mixer body above the feeding pipe, and no mixing blades being connected to the mixing shaft above the feeding pipe.
[0007] Preferably, the body of the twin-shaft mixer includes a mixing shell, with two mixing shafts rotatably connected to the end of the mixing shell. A rotating roller is connected to the mixing shaft inside the mixing shell, and a spiral blade is connected to the rotating roller. The two spiral blades are interlocked and interlocked with gaps between adjacent blades. The mixing shaft above the feeding pipe is not connected to the rotating roller and the spiral blade.
[0008] Preferably, the sprayer includes a spray housing, which is connected to the upper part of the tail end of the mixing housing. The top wall of the spray housing is connected to a liquid inlet pipe. A partition is connected inside the spray housing, and holes are opened on the partition. Spray heads are connected to the holes in the partition.
[0009] Preferably, the mixer conveys the raw materials into the hopper via a belt conveyor.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] Because of the stepped design of the twin-shaft mixer, the raw materials are mixed and transported to the end of the upper mixer. The sprayer is located at the point where the raw materials fall. After being sprayed, the raw materials are not centrifugally lifted by the mixing blades, but enter the next stage mixer under the action of gravity. This achieves humidification without forming a blockage layer.
[0012] Multi-stage mixers can also be set with different speeds and pitches of the spiral blades, and multiple mixing modes are available to adapt to raw materials at different stages. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;
[0014] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0016] In the figure: 1. Twin-shaft mixer body; 11. Mixing shell; 12. Mixing shaft; 13. Rotary roller; 14. Spiral blade; 2. Feeding pipe; 3. Hopper; 4. Discharge port; 5. Frame; 6. Sprayer; 61. Spray shell; 62. Liquid inlet pipe; 63. Baffle plate; 64. Spray head. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.
[0019] The present invention will now be described in detail with reference to the accompanying drawings.
[0020] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a twin-shaft humidifying mixer for coking, comprising: a twin-shaft mixer body 1, which has multiple steps arranged along the feeding direction; the lower part of the tail end of the upper twin-shaft mixer body 1 is connected to the upper part of the head end of the previous twin-shaft mixer body 1 through a feeding pipe 2; the head end of the uppermost twin-shaft mixer body 1 is connected to a hopper 3; the lower part of the tail end of the lowermost twin-shaft mixer body 1 is provided with a discharge port 4; all twin-shaft mixer bodies 1 are connected to a frame 5; a sprayer 6 is connected to the twin-shaft mixer body 1 above the feeding pipe 2; and no mixing blades are connected to the mixing shaft above the feeding pipe 2.
[0021] Raw materials are injected into the uppermost twin-shaft mixer body 1 through the hopper 3. After the first mixing, the raw materials are conveyed to the top of the feeding pipe 2. Since there are no mixing blades connected to the mixing shaft above the feeding pipe 2, the mixed raw materials enter the feeding pipe 2 and will not be centrifugally lifted by the mixing blades. The water sprayed from the upper sprayer 6 sprays water directly downwards onto the raw materials to complete the humidification. After humidification, the raw materials are stirred again by the lower twin-shaft mixer body 1 and mixed with water. Depending on the humidity requirements, it is determined whether to continue adding water in the next stage. Through multiple stages of humidification and stirring, the humidity control is precise, there is no clogging, and the raw materials are humidified evenly. Finally, the raw materials are discharged through the discharge port 4.
[0022] The body 1 of the twin-shaft mixer includes a mixing shell 11. Two mixing shafts 12 are rotatably connected to the end of the mixing shell 11. A rotating roller 13 is connected to the mixing shaft 12 inside the mixing shell 11. A spiral blade 14 is connected to the rotating roller 13. The two spiral blades 14 are interlocked and interlocked with gaps between adjacent blades. The mixing shaft 12 above the feed pipe 2 is not connected to the rotating roller 13 and the spiral blade 14.
[0023] The power drives two stirring shafts 12 to rotate in the same direction. The stirring shafts 12 drive the rotating rollers 13 and the spiral blades 14 to rotate in the same direction, mixing the raw materials in the mixing shell 11 and conveying them to the feeding pipe 2. The stirring shafts 12 above the feeding pipe 2 are not connected to the rotating rollers 13 and the spiral blades 14. The raw materials are not centrifuged here. At the same time, the raw materials move through the gap between the rotating rollers 13 and the mixing shell 11 to the top of the feeding pipe 2. The space where the raw materials are located suddenly increases and the top of the feeding pipe 2 will not be filled and blocked, making the spraying more uniform.
[0024] The sprayer 6 includes a spray housing 61, which is connected to the upper part of the tail end of the stirring housing 11. The top wall of the spray housing 61 is connected to an inlet pipe 62. A partition 63 is connected inside the spray housing 61. A hole is opened on the partition 63, and a spray head 64 is connected to the hole of the partition 63.
[0025] A liquid space is separated by a partition 63. The spray liquid enters the liquid space through the inlet pipe 62 and is then evenly distributed to different spray heads 64, increasing the spray coverage area and making the spraying more uniform.
[0026] The mixer conveys the raw materials into hopper 3 via a belt conveyor.
[0027] The inclined belt conveyor eliminates the need for manual lifting of raw materials into hopper 3, making it very convenient.
[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A twin-shaft humidifying mixer for coking, characterized in that: include: The twin-shaft mixer body (1) has multiple steps set along the feeding direction. The lower part of the tail end of the upper twin-shaft mixer body (1) is connected to the upper part of the head end of the previous twin-shaft mixer body (1) through the feeding pipe (2). The head end of the uppermost twin-shaft mixer body (1) is connected to the hopper (3). The lower part of the tail end of the lowermost twin-shaft mixer body (1) is provided with a discharge port (4). All twin-shaft mixer bodies (1) are connected to the frame (5). A sprayer (6) is connected to the twin-shaft mixer body (1) above the feeding pipe (2). No mixing blades are connected to the mixing shaft above the feeding pipe (2).
2. The twin-shaft humidifying mixer for coking according to claim 1, characterized in that: The body (1) of the twin-shaft mixer includes a mixing shell (11), and two mixing shafts (12) are rotatably connected to the end of the mixing shell (11). A rotating roller (13) is connected to the mixing shaft (12) inside the mixing shell (11), and a spiral blade (14) is connected to the rotating roller (13). The two spiral blades (14) are interlocked and there is a gap between adjacent blades. The mixing shaft (12) above the feeding pipe (2) is not connected to the rotating roller (13) and the spiral blade (14).
3. The twin-shaft humidifying mixer for coking according to claim 2, characterized in that: The sprayer (6) includes a spray shell (61), which is connected to the upper part of the tail end of the stirring shell (11). The top wall of the spray shell (61) is connected to an inlet pipe (62). A partition (63) is connected inside the spray shell (61). A hole is opened on the partition (63), and a spray head (64) is connected to the hole of the partition (63).
4. The twin-shaft humidifying mixer for coking according to claim 1, characterized in that: The mixer conveys the raw materials into the hopper (3) via a belt conveyor.