A washing apparatus for the production of brominated triazine
The use of a cooling box and a blower system to achieve microbubble washing without mechanical contact solves the problems of crystal wear and dissolution in existing devices, and improves the washing efficiency and yield of bromotriazine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINZHOU CHEM SCI & TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
Existing brominated triazine crystallization washing devices are prone to crystal abrasion due to forced stirring, which increases the difficulty of filtration and drying and may also cause crystal dissolution, reducing yield.
It employs a cooling box and air blowing system, using microbubbles to drive the flow of the washing liquid to achieve non-mechanical contact mixing and washing, combined with a semiconductor cooling chip to maintain a stable temperature and prevent crystal breakage and dissolution.
It effectively reduces crystal breakage and dissolution, improves washing efficiency, reduces temperature damage to crystals, and increases yield.
Smart Images
Figure CN224443947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brominated triazine production technology, and in particular to a washing device for brominated triazine production. Background Technology
[0002] Bromotriazine is an excellent flame retardant with superb flame-retardant properties. Currently, the main preparation method of bromotriazine is as follows: using phenol as a raw material, a bromination reaction is followed by the addition of cyanuric chloride for further reaction. After crystallization, bromotriazine needs to be washed to remove residual mother liquor and impurities from the surface and pores, thereby improving product purity and reducing the negative impact of impurities on subsequent processing or application performance.
[0003] However, the conventional operation of existing brominated triazine crystallization washing devices involves heating the washing liquid inside the washing device and then mixing and stirring the washing liquid and crystals through a stirring mechanism. This forced stirring washing method can easily cause the crystal surface to wear down or even break into smaller particles, increasing the difficulty of subsequent filtration and drying. Furthermore, stirring can accelerate the mass transfer process between the crystals and the washing liquid, which may cause some crystals to dissolve (especially at high temperatures or when the detergent has high solubility), resulting in a decrease in yield.
[0004] Therefore, we propose a brominated triazine production washing apparatus to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a washing apparatus for the production of bromotriazine to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A washing apparatus for producing brominated triazine includes a washing hopper, an outer casing of which is a washing liquid hopper. A cooling box is installed outside the washing liquid hopper, and a waste discharge pipe of the washing liquid hopper extends out of the bottom of the cooling box. A semiconductor cooling chip is installed at the inner bottom of the cooling box, and an air blower is also installed inside the cooling box. An air pump is installed at one end of the air blower that extends out of the outer wall of the cooling box, and an aeration disc is installed on the section of the air blower inside the cooling box. The other end of the air blower is connected to a ring pipe that surrounds the outer wall of the washing liquid hopper, and several aeration discs extending into the washing liquid hopper are connected circumferentially along the inner ring of the ring pipe.
[0008] In a further embodiment, a pair of protruding handles are symmetrically installed on the outer edge of the upper port of the washing hopper.
[0009] In a further embodiment, a tapered guide shroud, narrow at the top and wide at the bottom, is suspended inside the upper port of the washing hopper by several hooks. A 5-8mm gap is formed between the lower edge of the guide shroud and the inner wall of the washing hopper, and an observation port is provided at the top of the guide shroud.
[0010] In a further embodiment, the cooling surface of the semiconductor refrigeration chip faces the inside of the cooling box, and the heating surface of the semiconductor refrigeration chip extends through the outer wall of the cooling box and is equipped with a heat sink, and a cooling fan is installed outside the heat sink.
[0011] In a further embodiment, a temperature sensor is installed inside the cooling box, and a control box is installed on the outer wall of the cooling box, with the temperature sensor electrically connected to the control box.
[0012] In a further embodiment, liquid level sensors are installed on the inner side of the upper port of the washing liquid tank and on the inner wall of the upper end of the cooling tank. The liquid level sensor on the inner wall of the cooling tank is installed at a height lower than the upper edge of the upper port of the washing liquid tank. The liquid level sensor is electrically connected to the control box, and an audible and visual alarm is also installed on the control box.
[0013] In a further embodiment, a liquid filling pipe is connected to the upper edge of the cooling tank, and a protective mesh cover is screwed onto the liquid filling pipe. A drain pipe is also installed at the bottom of the cooling tank.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention effectively reduces the temperature during the washing process by setting up a cooling box, which helps to reduce the solubility of crystals. Furthermore, by blowing air into the cooling box and washing liquid tank through the air pipe and aeration plate, it helps to improve the temperature uniformity of the coolant in the cooling box. It can also form micro bubbles in the washing liquid tank, and the rising of the bubbles can drive the flow of the washing liquid, achieving mixing and washing without mechanical contact, which helps to reduce damage to the crystals. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the half-section structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of this utility model from below;
[0019] Figure 4 This is a schematic diagram of the installation structure of the air vent pipe and the ring pipe of this utility model;
[0020] Figure 5 This is a schematic diagram of the air guide cover structure of this utility model.
[0021] In the diagram: 1. Washing hopper; 2. Washing liquid hopper; 21. Waste discharge pipe; 3. Cooling tank; 31. Liquid filling pipe; 32. Protective mesh cover; 33. Drain pipe; 4. Semiconductor cooling chip; 5. Air blower; 6. Air pump; 7. Aeration disc one; 8. Ring pipe; 9. Aeration disc two; 10. Protruding handle; 11. Flow guide cover; 12. Hook; 13. Heat sink; 14. Cooling fan; 15. Temperature sensor; 16. Control box; 17. Liquid level sensor; 18. Audible and visual alarm. Detailed Implementation
[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[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. 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.
[0025] Please see Figure 1-3A washing apparatus for the production of brominated triazine includes a washing hopper 1, an outer washing liquid hopper 2, and a hopper-shaped part of the washing hopper 1 with a hollow mesh structure for holding crystals. The corner where the hopper-shaped part and the cylindrical part of the washing hopper 1 are connected is supported by the washing liquid hopper 2, and a gap is formed between the two. A pair of protruding handles 10 are symmetrically installed on the outer edge of the upper port of the washing hopper 1 to facilitate lifting the washing hopper 1. A cooling box 3 is installed outside the washing liquid hopper 2, and a waste discharge pipe 21 connected to the bottom of the washing liquid hopper 2 extends out of the bottom of the cooling box 3. A valve is installed on the protruding section of the waste discharge pipe 21 to control the opening and closing of the waste discharge pipe 21. The waste discharge pipe 21 and the cooling box 3 are sealed with sealant. A liquid addition pipe 31 is connected to the upper edge of the cooling box 3 to facilitate adding coolant to the cooling box 3. A drain pipe 33 is also installed at the bottom of the cooling box 3, and a valve is also installed in the drain pipe 33 to facilitate the opening and closing of the drain pipe 33.
[0026] Please see Figure 1-2 and Figure 5 A tapered guide hood 11, narrow at the top and wide at the bottom, is suspended inside the upper port of the washing hopper 1 by several hooks 12. The hooks 12 are hung on the upper edge of the cylindrical part of the washing hopper 1. The guide hood 11 is placed inside the cylindrical part of the washing hopper 1, and a gap of 5-10mm is formed between the lower edge of the guide hood 11 and the inner wall of the cylindrical part of the washing hopper 1. This allows the washing liquid to flow slowly down the inner wall of the washing hopper 1 when the washing liquid is added, thereby reducing the impact on the crystals and preventing crystal breakage. An observation port is provided at the top of the guide hood 11 to facilitate observation of the washing situation inside the washing hopper 1.
[0027] Please see Figure 2 A thermoelectric cooler 4 is installed at the bottom of the cooling box 3. The cooling surface of the thermoelectric cooler 4 faces the inside of the cooling box 3, and the heating surface of the thermoelectric cooler 4 extends through the outer wall of the cooling box 3 and is equipped with a heat sink 13. A cooling fan 14 is installed outside the heat sink 13. A temperature sensor 15 is also installed inside the cooling box 3, and a control box 16 is installed on the outer wall of the cooling box 3. A PLC controller is installed in the control box 16. The temperature sensor 15 is used to monitor the temperature of the coolant and feed the monitoring data back to the PLC controller. When the set threshold is reached, the PLC controller controls and adjusts the cooling power of the thermoelectric cooler 4 to maintain the coolant within a certain temperature range.
[0028] Please see Figure 2 and Figure 4The cooling tank 3 is also equipped with an air blower pipe 5. An air pump 6 is installed at one end of the air blower pipe 5 that extends out of the outer wall of the cooling tank 3. This end is connected to a nitrogen storage tank. The connection between the air blower pipe 5 and the cooling tank 3 is fixed and sealed with sealant. An aeration disc 7 is installed on the section of the air blower pipe 5 inside the cooling tank 3 to blow air into the cooling tank 3 to form bubbles, which facilitates the tumbling and mixing of the coolant and improves the uniformity of its temperature distribution. A protective mesh cover 32 is screwed onto the liquid filling pipe 31, which can prevent dust and maintain airflow to the outside to facilitate gas discharge. The other end of the air blower pipe 5 is connected to a ring pipe 8. The ring pipe 8 is wrapped around the outer wall of the washing liquid hopper 2. Several aeration discs 9 extending into the washing liquid hopper 2 are connected circumferentially on the inner ring of the ring pipe 8. The connection between the aeration discs 9 and the washing liquid hopper 2 is also sealed with sealant. The aeration discs 9 are located in the gap between the washing hopper 1 and the washing liquid hopper 2. By blowing air, they form small bubbles, which accelerate the mixing of the washing liquid and the crystals and improve the washing efficiency.
[0029] Please see Figure 2 Liquid level sensors 17 are installed on the inner side of the upper port of the washing liquid tank 2 and the inner wall of the upper end of the cooling tank 3. The liquid level sensor 17 on the inner wall of the cooling tank 3 is installed at a height lower than the upper edge of the upper port of the washing liquid tank 2. The liquid level sensor 17 is used to monitor the liquid level of the washing liquid in the washing liquid tank 2 and the liquid level of the cooling liquid in the cooling tank 3, and feeds the data back to the PLC controller in the control box 16. When the threshold is reached, the PLC controller controls the audible and visual alarm 18 to remind the user and prevent excessive liquid addition and overflow.
[0030] Work process: First, coolant is injected into the cooling tank 3. Then, the washing hopper 1 is placed on the washing liquid hopper 2. The crystals are added into the washing hopper 1. Then, the guide cover 11 is covered and the washing liquid is slowly added along the inner wall of the washing hopper 1. The washing liquid can pass through the mesh of the washing hopper 1, but the single crystals cannot pass through. The washing liquid fills the washing hopper 1 and the washing liquid hopper 2, immersing the crystals. Then, air is blown through the air pipe 5 to form tiny bubbles in the washing liquid hopper 2. The rising bubbles drive the washing liquid to flow, achieving mixing and washing without mechanical contact. After washing is completed, the waste discharge pipe 21 is opened to discharge the waste liquid.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A washing device for the production of brominated triazines, comprising a washing hopper (1), characterized in that: The washing hopper (1) is fitted with a washing liquid hopper (2), and a cooling box (3) is installed outside the washing liquid hopper (2). The waste discharge pipe (21) of the washing liquid hopper (2) extends out of the bottom of the cooling box (3). A semiconductor cooling chip (4) is installed at the bottom of the cooling box (3), and an air blowing pipe (5) is also installed inside the cooling box (3). An air pump (6) is installed at one end of the air blowing pipe (5) that extends out of the outer wall of the cooling box (3), and an aeration disc (7) is installed on the section of the air blowing pipe (5) inside the cooling box (3). The other end of the air blowing pipe (5) is connected to a ring pipe (8). The ring pipe (8) is wrapped around the outer wall of the washing liquid hopper (2), and several aeration discs (9) extending into the washing liquid hopper (2) are connected circumferentially on the inner ring of the ring pipe (8).
2. A washing device for the production of brominated triazines according to claim 1, characterized in that A pair of protruding handles (10) are symmetrically installed on the outer edge of the upper port of the washing hopper (1).
3. A device for producing brominated triazines according to claim 1, characterized in that: The washing hopper (1) has a tapered guide hood (11) that is narrow at the top and wide at the bottom suspended inside the upper port by several hooks (12). The lower edge of the guide hood (11) forms a 5-10mm gap with the inner wall of the washing hopper (1), and an observation port is provided at the top of the guide hood (11).
4. A device for producing brominated triazines according to claim 1, characterized in that: The cooling surface of the semiconductor refrigeration chip (4) faces the inside of the cooling box (3), and the heating surface of the semiconductor refrigeration chip (4) extends through the outer wall of the cooling box (3) and is equipped with a heat sink (13), and a cooling fan (14) is installed outside the heat sink (13).
5. A device for producing brominated triazines according to claim 1, characterized in that: A temperature sensor (15) is installed inside the cooling box (3), and a control box (16) is installed on the outer wall of the cooling box (3). The temperature sensor (15) is electrically connected to the control box (16).
6. A device for producing brominated triazines according to claim 5, characterized in that: Liquid level sensors (17) are installed on the inner side of the upper port of the washing liquid tank (2) and the inner wall of the upper end of the cooling box (3). The liquid level sensor (17) on the inner wall of the cooling box (3) is installed at a height lower than the upper edge of the upper port of the washing liquid tank (2). The liquid level sensor (17) is electrically connected to the control box (16), and an audible and visual alarm (18) is also installed on the control box (16).
7. A device for producing brominated triazines according to claim 1, characterized in that: The upper edge of the cooling tank (3) is connected to a liquid filling pipe (31), and a protective mesh cover (32) is screwed onto the liquid filling pipe (31). A drain pipe (33) is also installed at the bottom of the cooling tank (3).