A high efficiency wet mixing granulator

Abstract

The application relates to a high-efficiency wet mixing granulator, and relates to the technical field of the granulator. The wet mixing granulator comprises a mixing granulator body, the mixing granulator body comprises a mixing granulation chamber, a main stirrer is arranged in the mixing granulation chamber, a side wall in the mixing granulation chamber is provided with a vice stirring shaft, a driving motor for driving the vice stirring shaft to rotate is arranged on the mixing granulator body, a cross rod is fixedly connected to the top of the mixing granulation chamber, an installation block is slidably connected to the cross rod, a fixing piece for fixing the installation block on the cross rod is arranged on the installation block, a nozzle is arranged on the installation block, a water supply assembly for supplying water to the nozzle is arranged on the mixing granulator body, and a protection assembly for protecting the nozzle is arranged at the front end of the nozzle. The application has the effect that the spraying range of the mixing granulator can be flexibly adjusted.

Description

Technical Field

[0001] This application relates to the technical field of granulators, and in particular to a high-efficiency wet mixing granulator. Background Technology

[0002] In the pharmaceutical, food, and chemical industries, high-efficiency wet mixing granulators are key equipment for mixing solid materials with liquid binders to form granules. Their core working principle involves using a stirring device to uniformly mix the materials, while a liquid spraying system sprays the binder onto the materials, causing them to agglomerate and then be sheared by a cutter to form uniform granules. The performance of the liquid spraying system directly affects the uniformity of the granules, production efficiency, and material utilization rate, making it one of the core components of the granulation process.

[0003] Existing high-efficiency wet mixing granulators mostly employ a single nozzle or a multi-nozzle structure with a fixed angle in their liquid spraying systems. However, this type of structure has the following problems in practical applications. First, the nozzles are prone to clogging: because dust is generated during the mixing process, single nozzles or nozzles with a fixed layout are easily clogged by dust, leading to interruptions in binder spraying or unstable flow rates. This not only affects the continuity of granulation but also requires frequent shutdowns to clean the nozzles, reducing production efficiency. Second, the spraying is uneven. The spraying range of a single nozzle is limited, making it difficult to cover all the material inside the granulation chamber. This easily leads to problems such as localized over-wetting (binder accumulation) or under-wetting (lack of binder), making it difficult to evenly wet corners of the granulation chamber or areas with thicker material accumulation. The resulting granules have large fluctuations in particle size and a low yield rate.

[0004] Therefore, in response to the problems of easy clogging, uneven spraying and poor adaptability of existing liquid spraying systems, there is an urgent need to design a nozzle structure that can flexibly adjust the spraying range to improve the uniformity of adhesive spraying, reduce the risk of clogging, and adapt to the granulation needs of different material amounts and forms, thereby improving granule quality and production efficiency. Utility Model Content

[0005] In order to flexibly adjust the spraying range of the mixing granulator, this application provides a high-efficiency wet mixing granulator.

[0006] The high-efficiency wet mixing and granulation machine provided in this application adopts the following technical solution: A high-efficiency wet mixing granulator includes a mixing granulator body, which includes a mixing granulation chamber. A main stirrer is installed in the mixing granulation chamber, and a secondary stirring shaft is provided on the side wall of the mixing granulation chamber. A drive motor for driving the secondary stirring shaft to rotate is installed on the mixing granulator body. A crossbar is fixedly connected to the top of the mixing granulation chamber, and a mounting block is slidably connected to the crossbar. The mounting block is provided with a fixing component for fixing the mounting block to the crossbar. A nozzle is installed on the mounting block, and a water supply component for supplying water to the nozzle is provided on the mixing granulator body. A protective component for protecting the nozzle is provided at the front end of the nozzle.

[0007] By adopting the above technical solution, before mixing, the mounting blocks can be adjusted to slide on the crossbar and fixed by fasteners, resulting in different distances between each mounting block and the crossbar. This not only facilitates the adjustment of the nozzle position but also allows for flexible and uniform distribution of the nozzles to adapt to different granulation needs and improve wetting effects. Furthermore, different numbers of nozzles can be installed, and nozzles can be installed at different positions on the crossbar as needed. After the nozzles are installed, water can be supplied to them through the water supply assembly, spraying water into the mixing and granulation chamber. The protective assembly protects the nozzles. Simultaneously, the main agitator and the auxiliary agitator shaft can work together to mix, thereby improving the efficiency of material mixing and granulation.

[0008] Optionally, the fastener is configured as a locking bolt, which passes through and is threaded onto the mounting block, with the shank of the locking bolt abutting against the cross bar.

[0009] By adopting the above technical solution, the mounting block can be firmly fixed on the cross rod, which facilitates the adjustment and fixation of the nozzle position and meets different granulation needs.

[0010] Optionally, the water supply assembly includes a main water supply pipe that passes through and is installed in the mixing and granulation chamber, and multiple branch water supply pipes are connected to the main water supply pipe, with each branch water supply pipe corresponding to and connected to the nozzle.

[0011] By adopting the above technical solution, a stable water supply can be provided to multiple nozzles, meeting the water demand in the granulation process and improving granulation efficiency.

[0012] Optionally, each of the aforementioned water supply pipes is equipped with a water control valve.

[0013] By adopting the above technical solution, water is supplied to the nozzles using a water supply component for granulation. Water control valves installed on the water supply pipes can independently control the water supply to each nozzle, thereby precisely adjusting the amount of water added during the granulation process and improving the granulation effect and quality.

[0014] Optionally, the protective assembly includes a protective cylinder surrounding the nozzle, one end of the protective cylinder being fixedly connected to the nozzle, and the other end of the protective cylinder being rotatably connected to a plurality of baffles, the baffles sealing the end of the protective cylinder, and a limiting member for restricting the position of the baffles being provided between the baffles and the protective cylinder.

[0015] By adopting the above technical solution, the nozzle can supply water, the protective component can prevent the nozzle from being blocked by materials and ensure the normal operation of the nozzle, and the limiting component can limit the position of the baffle plate. When the nozzle is not supplied with water, the limiting component can drive the baffle plate to block the nozzle, reducing the occurrence of blockage by materials.

[0016] Optionally, the limiting member is configured as an elastic rope, which is fixedly connected between the blocking plate and the protective cylinder.

[0017] By adopting the above technical solution, the elastic rope will stretch under the impact of the water flow when the water is sprayed, which will cause the baffle plate to rotate and open when the water is sprayed. After the water spraying is finished, the baffle plate will reset and seal the end of the protective cylinder under the action of the elastic rope, preventing materials from entering the nozzle and causing blockage.

[0018] Optionally, a rubber strip is fixedly connected to the edge of the baffle plate, and the rubber strips on two adjacent baffle plates abut against each other.

[0019] By adopting the above technical solution, the rubber strips fixedly connected to the edges of the baffle plate abut against each other, which can enhance the sealing between the baffle plates, better protect the nozzle, and reduce the possibility of external impurities entering the nozzle.

[0020] Optionally, a limiting rod is fixedly connected to the inner wall of the protective cylinder. The limiting rod abuts against the baffle plate, and under the restriction of the limiting rod, the baffle plate can only rotate to the side away from the nozzle.

[0021] By adopting the above technical solution, the limiting rod restricts the rotation direction of the baffle plate, reducing the possibility of materials knocking the baffle plate open and directly entering the nozzle, thereby further ensuring smooth water spraying and protective effect of the nozzle.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The main agitator and the auxiliary agitator shaft work together to make the materials more evenly mixed and fully promote the mixing of materials and liquids; 2. The nozzle can slide on the crossbar and be fixed by the fastener, and its position can be flexibly adjusted according to different production needs and material characteristics, thereby expanding the liquid spraying range and improving the granulation effect; 3. A protective component is installed at the front end of the nozzle to prevent the nozzle from being contaminated or clogged by materials when not in use, thereby extending the service life of the nozzle and improving the working efficiency of the pellet mill. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the mixing and granulation chamber according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the water supply component according to an embodiment of this application; Figure 4 yes Figure 3 A magnified structural diagram of part A in the middle; Figure 5 This is a schematic diagram of the cross bar structure in an embodiment of this application.

[0024] In the diagram, 1. Mixing granulator body; 11. Mixing and granulation chamber; 2. Main agitator; 3. Auxiliary agitator shaft; 4. Drive motor; 5. Cross bar; 6. Mounting block; 7. Fixing component; 8. Nozzle; 9. Water supply assembly; 91. Main water supply pipe; 92. Sub-water supply pipe; 93. Water control valve; 10. Protective assembly; 101. Protective cylinder; 102. Baffle plate; 103. Limiting component; 12. Limiting rod; 13. Rubber strip. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0026] An embodiment of this application is: a high-efficiency wet mixing granulator, referring to... Figure 1 and Figure 2 The system includes a mixing granulator body 1, which employs a wet mixing granulator as described in the prior art. The mixing granulator body 1 includes a mixing granulation chamber 11 at its top, and a main agitator 2 is installed inside the mixing granulation chamber 11. The main agitator 2 is a turbofan agitator as described in the prior art. A secondary stirring shaft 3 is provided on the side wall inside the mixing granulation chamber 11, and a drive motor 4 is installed on the mixing granulator body 1 to drive the secondary stirring shaft 3 to rotate.

[0027] Reference Figure 3 , Figure 4 and Figure 5 A crossbar 5 is fixedly connected to the top of the mixing and granulation chamber 11. Each support of the crossbar 5 is slidably connected to a mounting block 6, which passes through the crossbar 5. The mounting block 6 is provided with a fixing member 7 for fixing the mounting block 6 to the crossbar 5. In this embodiment, the fixing member 7 is a locking bolt, which passes through and is threaded onto the mounting block 6. The shank of the locking bolt abuts against the crossbar 5, thereby firmly fixing the mounting block 6 to the crossbar 5.

[0028] The mounting block 6 is equipped with nozzles 8, and the mixing and granulating machine body 1 is provided with a water supply assembly 9 for supplying water to the nozzles 8. The water supply assembly 9 includes a main water supply pipe 91 that passes through and is installed in the mixing and granulating chamber 11, and the main water supply pipe 91 is connected to an external water supply device. Multiple branch water supply pipes 92 are connected to the main water supply pipe 91, and each branch water supply pipe 92 corresponds to and is connected to a nozzle 8, and each branch water supply pipe 92 is equipped with a water control valve 93. This allows for a stable water supply to multiple nozzles 8.

[0029] The front end of the nozzle 8 is provided with a protective assembly 10 for protecting the nozzle 8. The protective assembly 10 includes a protective cylinder 101 surrounding the nozzle 8, and the protective cylinder 101 is configured as a square cylinder. One end of the protective cylinder 101 is fixedly connected to the nozzle 8. The other end of the protective cylinder 101 is rotatably connected to a plurality of baffle plates 102. In this embodiment, four baffle plates 102 are provided, and each baffle plate 102 is provided on each side of the protective cylinder 101. The baffle plates 102 seal the end of the protective cylinder 101.

[0030] A limiting member 103 is provided between the baffle plate 102 and the protective cylinder 101 to restrict the position of the baffle plate 102. In this embodiment, the limiting member 103 is an elastic rope, which is fixedly connected between the baffle plate 102 and the protective cylinder 101. Thus, when water is sprayed, the elastic rope stretches under the impact of the water flow, allowing the baffle plate 102 to rotate and open when the nozzle 8 sprays water. After the water spraying ends, the elastic rope causes the baffle plate 102 to reset and seal the end of the protective cylinder 101. A limiting rod 12 is fixedly connected to the inner wall of the protective cylinder 101, and the limiting rod 12 is arranged parallel to the elastic rope. The limiting rod 12 abuts against the baffle plate 102, and under the restriction of the limiting rod 12, the baffle plate 102 can only rotate to the side away from the nozzle 8. Thus, the limiting rod 12 can restrict the rotation direction of the baffle plate 102, reducing the possibility of material knocking the baffle plate 102 open and directly entering the nozzle. At the same time, in order to facilitate the opening of the baffle plate 102, a rubber strip 13 is fixedly connected to the edge of the baffle plate 102, and the rubber strips 13 on two adjacent baffle plates 102 abut against each other.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency wet mixing granulator, comprising a mixing granulator body (1), characterized in that, The mixing granulator body (1) includes a mixing granulation chamber (11), a main stirrer (2) is installed in the mixing granulation chamber (11), a secondary stirring shaft (3) is provided on the side wall of the mixing granulation chamber (11), a drive motor (4) for driving the secondary stirring shaft (3) to rotate is installed on the mixing granulator body (1), a cross rod (5) is fixedly connected to the top of the mixing granulation chamber (11), an installation block (6) is slidably connected to the cross rod (5), a fixing part (7) for fixing the installation block (6) on the cross rod (5) is provided on the installation block (6), a nozzle (8) is installed on the installation block (6), a water supply component (9) for supplying water to the nozzle (8) is provided on the mixing granulator body (1), and a protective component (10) for protecting the nozzle (8) is provided at the front end of the nozzle (8).

2. The high-efficiency wet mixing and granulation machine according to claim 1, characterized in that, The fastener (7) is configured as a locking bolt, which passes through and is threaded onto the mounting block (6), and the shank of the locking bolt abuts against the cross bar (5).

3. The high-efficiency wet mixing and granulation machine according to claim 1, characterized in that, The water supply assembly (9) includes a main water supply pipe (91) that passes through and is installed in the mixing and granulation chamber (11). Multiple branch water supply pipes (92) are connected to the main water supply pipe (91). Each branch water supply pipe (92) corresponds to and is connected to the nozzle (8).

4. The high-efficiency wet mixing and granulation machine according to claim 3, characterized in that, Each of the aforementioned water supply pipes (92) is equipped with a water control valve (93).

5. The high-efficiency wet mixing and granulation machine according to claim 4, characterized in that, The protective assembly (10) includes a protective cylinder (101) arranged around the nozzle (8). One end of the protective cylinder (101) is fixedly connected to the nozzle (8), and the other end of the protective cylinder (101) is rotatably connected to a plurality of baffles (102). The baffles (102) seal the end of the protective cylinder (101), and a limiting member (103) for limiting the position of the baffles (102) is provided between the baffles (102) and the protective cylinder (101).

6. The high-efficiency wet mixing and granulation machine according to claim 5, characterized in that, The limiting member (103) is configured as an elastic rope, which is fixedly connected between the blocking plate (102) and the protective cylinder (101).

7. The high-efficiency wet mixing and granulation machine according to claim 6, characterized in that, A rubber strip (13) is fixedly connected to the edge of the baffle plate (102), and the rubber strips (13) on two adjacent baffle plates (102) abut against each other.

8. The high-efficiency wet mixing and granulation machine according to claim 7, characterized in that, A limiting rod (12) is fixedly connected to the inner wall of the protective cylinder (101). The limiting rod (12) abuts against the baffle plate (102). Under the restriction of the limiting rod (12), the baffle plate (102) can only rotate to the side away from the nozzle (8).

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