High-speed continuous mixing equipment
By designing a high-speed continuous mixing equipment, the synergistic effect of the spindle and multiple blades is used to achieve continuous and uniform mixing of water-containing solid waste and calcium oxide, solving the problem of uneven stirring before the high-temperature and high-humidity dust-containing gases in the prior art is solved, avoiding the risk of explosion and improving product quality.
Patent Information
- Application Number
- CN202421063545.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-16
AI Technical Summary
When using a mixer or agitator in water-containing solid waste, it is difficult to achieve continuous and uniform stirring before high temperature and high humidity dust-containing gas is generated, which has a risk of explosion and is unfavorable to product quality.
A high-speed continuous mixing device is designed, using a spindle and a plurality of first and second blades arranged in the axial direction. Through the synergistic action of the screw conveying mechanism and the stirring blade, the continuous and uniform mixing of water-containing solid waste and calcium oxide is achieved.
The mixing and stirring is completed before the high-temperature and high-humidity dust-containing gas is generated to avoid explosion risk, ensure the uniformity of the mixture, facilitate the removal of high-temperature and high-humidity dust-containing gases in the later stage, and improve product quality.
Smart Images
Figure CN222641727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dewatering of water-containing solids, in particular to a high-speed continuous mixing device. Background Art
[0002] It is difficult to recycle a large amount of abandoned water-containing solid waste. The water content of water-containing solid waste is generally high, which can reach more than 20%. Based on the different sources of water-containing solid waste, there are mainly industrial gypsum (including phosphogypsum, titanium gypsum, desulfurized gypsum, etc.), sludge, alkali slag, etc. After drying, they can be used in different fields, such as fluidized soil backfill, cementitious materials in pile materials, roadbed fillers, etc. There are two commonly used methods for drying water-containing solid waste, one is the airing process, and the other is the drying process. The airing process occupies a large area and is prone to secondary pollution, while the drying process requires additional energy consumption, which is not conducive to energy conservation and emission reduction. Therefore, the method of adding quicklime as a drying agent to remove moisture in water-containing solid waste gradually replaces the airing process and the drying process.
[0003] When quicklime (calcium oxide) is used to remove moisture from water-containing solid waste, a mixer or agitator is usually used to directly mix calcium oxide and water-containing solid waste. During the mixing process, it takes some time for a large amount of high-temperature, high-humidity, dust-containing gas to be generated after calcium oxide is added to the water-containing solid waste. How to achieve continuous and uniform mixing before a large amount of high-temperature, high-humidity, dust-containing gas is generated can not only avoid the risk of explosion in the early mixing and stirring process, but also play a vital role in the removal of high-temperature, high-humidity, dust-containing gas in the later stage and product quality. Based on this, it is urgent to develop a device that can achieve continuous and uniform mixing of water-containing solid waste and calcium oxide. Utility Model Content
[0004] The purpose of the utility model is to provide a high-speed continuous mixing device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed continuous mixing device, comprising: a body, the body is provided with a feed port and a discharge port located at both ends of the body, and a plurality of feeding ports for adding materials are also provided along the body, a main shaft is arranged in the body, the main shaft is connected to a driving device, a plurality of first blades arranged along the axial direction are provided on the main shaft, the first blades rotate with the main shaft for conveying and stirring materials, and a plurality of second blades arranged along the axial direction are also provided on the main shaft, the second blades rotate with the main shaft for stirring materials.
[0006] Preferably, the plurality of first blades are located on a spiral arc surface to form a spiral conveying mechanism.
[0007] Preferably, each of the first blades has an angle with the main shaft, so as to facilitate pushing the material toward the discharge port.
[0008] Preferably, the second blade is located in the middle and rear section of the main shaft, and the initial setting position is located behind the feeding port for adding materials.
[0009] Preferably, each of the second blades is arranged between two adjacent first blades.
[0010] Preferably, the area of the second blade is smaller than that of the first blade.
[0011] Preferably, each of the second blades has an angle with the main shaft, so as to facilitate pushing the material toward the feed inlet.
[0012] Preferably, the number of the second blades is set according to the stirring effect.
[0013] Preferably, the driving device is a variable frequency motor.
[0014] Preferably, the width of the second blade is half the width of the first blade.
[0015] The high-speed continuous mixing equipment has the following beneficial effects:
[0016] (1) In this high-speed continuous mixing equipment, water-containing solid waste is added from the feed port, and calcium oxide enters the machine body from the feed port. There are multiple feed ports, and the feed port can be selected according to the reaction speed of the water-containing solid waste and calcium oxide, so that the mixing and stirring operation can be completed before a large amount of high-temperature and high-humidity dust-containing gas is generated, thereby avoiding the risk of explosion; the first blade breaks up the water-containing solid waste and then transports it, so that the calcium oxide is added to the broken water-containing solid waste for stirring, thereby achieving gradual mixing of the materials. The second blade can enhance the intensity of stirring of the materials, ensure the uniformity of the mixture, facilitate the removal of high-temperature and high-humidity dust-containing gas in the later stage, and ensure product quality.
[0017] (2) The second blade is arranged in the middle and rear section of the main shaft, and the initial setting position is located after the feeding port for adding materials. The first blade at the front end of the main shaft first breaks up the water-containing solid waste. After adding calcium oxide, the first blade and the second blade stir together. The first blade pushes the material forward, and the second blade pushes the material backward. The area of the second blade is smaller than that of the first blade, which can appropriately extend the stirring and mixing time, which is conducive to improving the mixing uniformity.
[0018] (3) Since different sources of water-containing solid waste and calcium oxide may lead to different reaction processes, the number of second blades can be flexibly set according to the stirring effect and reaction conditions, and combined with a variable frequency motor, the mixing time of water-containing solid waste and calcium oxide can be randomly adjusted to ensure equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A front view of a high-speed continuous mixing device provided in an embodiment of the present application;
[0020] Figure 2 It is a cross-sectional view of the high-speed continuous mixing device when the first blade is set;
[0021] Figure 3 This is a cross-sectional view of a high-speed continuous mixing device when a second blade is installed.
[0022] In the figure: 1. machine body; 2. feed inlet; 3. feeding port; 4. discharge port; 5. driving device; 6. main shaft; 7. first blade; 8. second blade. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] like Figure 1-Figure 3 As shown, the utility model provides an embodiment of a high-speed continuous mixing device, comprising: a body 1, the body 1 is provided with a feed port 2 and a discharge port 4 located at both ends of the body, and a plurality of feed ports 3 for adding materials are provided along the body, the feed port 2 is used for adding water-containing solid waste, the feed port 3 is used for adding calcium oxide, and the mixture of water-containing solid waste and calcium oxide is discharged from the discharge port 4.
[0025] Specifically, a main shaft 6 is arranged in the body 1, and the main shaft 6 is connected to the driving device 5. The driving device 5 adopts a variable frequency motor, and the output end of the variable frequency motor is fixedly connected to the main shaft 6. The main shaft 6 extends into the body 1 and is rotatably connected to the body 1 through a bearing. A plurality of first blades 7 arranged along the axial direction are arranged on the main shaft 6. The first blades 7 rotate with the main shaft 6 for conveying and stirring materials. A plurality of second blades 8 arranged along the axial direction are also arranged on the main shaft 6. The second blades 8 rotate with the main shaft 6 for stirring materials.
[0026] Among them, the spacing between two adjacent blades is between 200mm-300mm, preferably, the spacing is 260mm, and the number of second blades 8 is set according to the stirring effect. The more the number of second blades 8 is set, the better the stirring effect. However, it is necessary to comprehensively consider the time for the water-containing solid waste to react with calcium oxide to generate a large amount of high-temperature and high-humidity dust-containing gas to avoid the generation of a large amount of high-temperature and high-humidity dust-containing gas inside the mixer.
[0027] Furthermore, multiple first blades 7 are located on a spiral arc surface to form a spiral conveying mechanism. Each first blade 7 has an angle with the main shaft 6, which is convenient for pushing the material toward the discharge port 4. The second blade 8 is located in the middle and rear section of the main shaft 6, and the initial setting position is located after the feeding port 3 for adding materials. Each second blade 8 is set between two adjacent first blades 7. Each second blade 8 has an angle with the main shaft 6, which is convenient for pushing the material toward the feed port 2 to increase the stirring effect. The area of the second blade 8 is smaller than that of the first blade 7. Preferably, the width of the second blade 8 is half the width of the first blade 7, so that the second blade 8 can enhance the stirring effect while preventing the material from staying in the mixer for too long, so that the material can be smoothly conveyed.
[0028] Preferably, the angle between the tangent plane of the main shaft 6 and the plane where the central axis of the first blade 7 is located is 45° clockwise, and the angle between the tangent plane of the main shaft 6 and the plane where the central axis of the second blade 8 is located is 45° counterclockwise, so that the first blade 7 is used as a forward blade for conveying materials, and the second blade 8 is used as a reverse blade for stirring materials.
[0029] In this embodiment, blades are provided below the feed port 2 so that the material can be immediately stirred by the blades when entering the machine body 1, thereby improving the stirring efficiency and increasing the mixing effect between the materials. Inspection hole covers are provided on one side of the feed port 2 and each feeding port 3 to facilitate subsequent inspection and maintenance.
[0030] When in use, taking the case where the water-containing solid waste is water-containing phosphogypsum as an example, the water-containing phosphogypsum enters the body 1 from the feed port 2, the frequency conversion motor drives the main shaft 6 to rotate, and the multiple blades fixed on the main shaft 6 rotate accordingly, and a number of first blades 7 break up the water-containing phosphogypsum and propel it forward in a spiral motion, and after the material moves to the highest point, it directly falls under the action of gravity and is mixed into the material below, so that the first blade 7 can stir the material while spirally conveying the material. When the water-containing phosphogypsum is being conveyed, calcium oxide (calcium oxide is used as a desiccant to remove moisture from the phosphogypsum) is added into the body 1 from the feed port 3, so that the calcium oxide contacts the broken water-containing phosphogypsum and is stirred under the action of the first blade 7 and the second blade 8, and the mixture is pushed forward under the action of the first blade 7 and finally discharged from the discharge port 4.
[0031] In the present application, water-containing solid waste is added from the feed port 2, and calcium oxide enters the body 1 from the feed port 3, and multiple feed ports 3 are provided. The feed port 3 can be selected according to the reaction rate of the water-containing solid waste and calcium oxide, so as to complete the mixing and stirring operation before a large amount of high-temperature and high-humidity dust-containing gas is generated, thereby avoiding the risk of explosion.
[0032] Moreover, the first blade 7 breaks up the water-containing solid waste and then transports it, so that the calcium oxide is added to the broken up water-containing solid waste for stirring, thereby achieving gradual mixing of the materials. The second blade 8 can enhance the intensity of stirring of the materials, ensure the uniformity of the mixture, facilitate the removal of high-temperature and high-humidity dust-containing gases in the later stage, and ensure product quality.
[0033] In the present invention, the second blade 8 is arranged in the middle and rear section of the main shaft 6, and the initial setting position is located after the feeding port 3 for adding materials. The first blade 7 at the front end of the main shaft 6 first breaks up the water-containing solid waste. After adding calcium oxide, the first blade 7 and the second blade 8 stir the material together. The first blade 7 acts as a forward blade to push the material forward, and the second blade 8 acts as a reverse blade to push the material backward. The area of the second blade 8 is smaller than that of the first blade 7. The stirring and mixing time can be appropriately extended without affecting the material transportation, which is beneficial to improving the mixing uniformity.
[0034] It is understandable that the discharge port 4 is located at the rear end of the machine body 1, so that the reacted materials can be discharged from the machine body 1 in time, further avoiding equipment damage caused by the mixture accumulating in the machine body 1 for a long time and generating high temperature.
[0035] In addition, since different sources of aqueous solid waste and calcium oxide may lead to different reaction processes, the number of second blades 8 can be flexibly set according to the stirring effect and reaction conditions. With the help of a variable frequency motor, the speed of the main shaft 6 and the blades can be adjusted, so that the mixing time of aqueous solid waste and calcium oxide can be randomly adjusted to ensure the safety of the equipment.
[0036] Working principle: water-containing solid waste enters the machine body 1 from the feed port 2, the frequency conversion motor drives the main shaft 6 to rotate, and the multiple blades fixed on the main shaft 6 rotate accordingly. Several first blades 7 break up the water-containing solid waste and push it forward in a spiral motion. Calcium oxide is put into the machine body 1 from the feed port 3, so that the calcium oxide contacts the broken water-containing solid waste. The first blade 7 at the front end of the main shaft 6 first breaks up the water-containing solid waste. After adding calcium oxide, the first blade 7 and the second blade 8 stir the material together. The first blade 7 acts as a forward blade to push the material forward, and the second blade 8 acts as a reverse blade to push the material backward to achieve mixing between the materials. The mixed material is pushed forward by the action of the first blade 7 and finally discharged from the discharge port 4.
[0037] In summary, although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-speed continuous mixing device, characterized in that: include: A machine body (1), wherein the machine body (1) is provided with a feed inlet (2) and a discharge outlet (4) located at both ends of the machine body, and a plurality of feed inlets (3) for adding materials are also provided along the machine body; A main shaft (6) is arranged in the machine body (1), and the main shaft (6) is connected to the driving device (5); The main shaft (6) is provided with a plurality of first blades (7) arranged along the axial direction, and the first blades (7) rotate along with the main shaft (6) to convey and stir materials; The main shaft (6) is also provided with a plurality of second blades (8) arranged along the axial direction, and the second blades (8) rotate along with the main shaft (6) to stir the material.
2. The high-speed continuous mixing device according to claim 1, characterized in that: The plurality of first blades (7) are located on a spiral arc surface to form a spiral conveying mechanism.
3. The high-speed continuous mixing device according to claim 1, characterized in that: Each of the first blades (7) has an angle with the main shaft (6), so as to facilitate pushing the material towards the discharge port (4).
4. The high-speed continuous mixing device according to claim 1, characterized in that: The second blade (8) is located in the middle and rear section of the main shaft (6), and the initial setting position is located behind the feeding port (3) for adding materials.
5. The high-speed continuous mixing device according to claim 1, characterized in that: Each of the second blades (8) is arranged between two adjacent first blades (7).
6. The high-speed continuous mixing device according to claim 1, characterized in that: The area of the second blade (8) is smaller than that of the first blade (7).
7. The high-speed continuous mixing device according to claim 1, characterized in that: Each of the second blades (8) has an angle with the main shaft (6), so as to facilitate pushing the material towards the feed port (2).
8. The high-speed continuous mixing device according to claim 1, characterized in that: The number of the second blades (8) is set according to the stirring effect.
9. The high-speed continuous mixing device according to claim 1, characterized in that: The driving device (5) is a variable frequency motor.
10. The high-speed continuous mixing device according to claim 1, characterized in that: The width of the second blade (8) is half the width of the first blade (7).