Phosphate dosing device for boiler
By designing a boiler phosphate dosing device, an automated phosphate dosing process is achieved using a moving frame and stirring components, solving the problems of cumbersome operation and safety hazards in existing technologies, and realizing a simple and efficient phosphate addition process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ENERGY CONSERVATION (ANKANG) ENVIRONMENTAL PROTECTION ENERGY CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-16
AI Technical Summary
Existing technologies for adding phosphate to boilers are cumbersome, pose safety hazards, and cannot be continuously applied.
A boiler phosphate dosing device was designed, including a base plate, a U-shaped frame, a stirring assembly, and a moving frame. The moving frame reciprocates within the U-shaped frame to achieve automatic phosphate dosing, and the stirring assembly mixes the phosphate solution before delivering it to the boiler.
The operation procedures were simplified, enabling continuous phosphate dosing and avoiding the risk of operators coming into contact with high-temperature boilers or chemical agents, thus improving the practicality and safety of the equipment.
Smart Images

Figure CN224362640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical dosing devices, and in particular to a boiler phosphate dosing device. Background Technology
[0002] Currently, in order to prevent the formation of calcium scale and alkaline corrosion in boilers, phosphates are added to the boiler feedwater. This prevents the Ca2+ entering the boiler with the feedwater from forming scale, but instead generates sludge, which is then removed through boiler blowdown.
[0003] In the existing technology, the process of manually adding phosphate to the boiler and then injecting water to complete the addition of phosphate is cumbersome and cannot be continuously carried out. Furthermore, if not careful, operators may be exposed to high-temperature boilers or chemical agents, posing a safety hazard. Therefore, it is necessary to improve the boiler phosphate dosing device to solve the above problems. Utility Model Content
[0004] To overcome the problems of manually adding phosphate to the boiler first and then injecting water to complete the addition of phosphate to the boiler, which is cumbersome, cannot be continuously added, and poses safety hazards.
[0005] The technical solution of this utility model is as follows: a boiler phosphate dosing device, including a base plate, a U-shaped frame, and a stirring assembly. A foot is fixedly connected to the top of the base plate, and a furnace body is fixedly connected inside the foot. The stirring assembly is installed inside the furnace body, and a U-shaped frame is installed inside the furnace body. A movable frame is slidably connected inside the U-shaped frame, and a loading hopper is fixedly connected inside the movable frame. A fixed block is fixedly connected to the outside of the loading hopper, and a light shaft is rotatably connected inside the fixed block. A rotating block is fixedly connected to the outside of the light shaft, and a baffle is fixedly connected to the end of the rotating block away from the light shaft. The baffle is located at the bottom of the loading hopper. A feed inlet is fixedly connected inside the furnace body, and a conveying layer is fixedly connected to the bottom of the feed inlet. The movable frame is located at the bottom of the conveying layer.
[0006] Preferably, the U-shaped frame has a matching groove at the corresponding position of the movable frame, and the movable frame is slidably connected in the groove of the U-shaped frame.
[0007] Preferably, the moving frame has a matching groove at the corresponding position of the loading barrel, and the loading barrel is fixedly connected in the groove of the moving frame.
[0008] Preferably, the bottom of the feed inlet is shaped like a funnel.
[0009] Preferably, a hydraulic telescopic rod is fixedly connected inside the furnace body, with the left end of the hydraulic telescopic rod fixedly connected to the right end of the movable frame. A support frame is fixedly connected inside the furnace body, and a U-shaped frame is fixedly connected to the inside of the support frame. A torsion spring is fixedly connected between the rotating block and the fixed block. An L-shaped plate is fixedly connected to the bottom of the U-shaped frame, and the loading bucket and baffle are set inside the L-shaped plate.
[0010] Preferably, two torsion springs are provided, symmetrically distributed between the rotating block and the fixed block.
[0011] Preferably, the stirring assembly includes a motor bracket, which is fixedly connected to the outside of the foot frame. A motor body is fixedly connected to the top of the motor bracket. A rotating shaft is fixedly connected to the output end of the motor body. The rotating shaft is rotatably connected to the inside of the furnace body. A stirring blade is fixedly connected to the outside of the rotating shaft. A water inlet pipe is fixedly connected to the inside of the furnace body. A water outlet pipe is fixedly connected to the inside of the furnace body. A delivery pump is fixedly connected to the top of the bottom plate. A connecting pipe is fixedly connected between the delivery pump and the water outlet pipe.
[0012] The beneficial effects of this utility model are as follows: Compared with manually adding phosphate to the boiler first and then injecting water to complete the addition of phosphate, the movable frame moves back and forth inside the U-shaped frame to add phosphate to the charging tank. This simplifies the operation, allows for continuous addition, prevents operators from coming into contact with high-temperature boilers or chemicals, improves the practicality of the device, and avoids the problems of complicated operation, inability to continuously add phosphate, and safety hazards. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic cross-sectional view of the furnace body of this utility model;
[0015] Figure 3 This is a schematic cross-sectional view of the U-shaped frame structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the torsion spring structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the stirring assembly structure of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Base plate; 21. Support frame; 22. U-shaped frame; 23. Feed inlet; 24. Conveying layer; 25. Moving frame; 26. L-shaped plate; 27. Hydraulic telescopic rod; 28. Loading bucket; 29. Fixing block; 210. Optical shaft; 211. Rotating block; 212. Torsion spring; 213. Baffle; 31. Motor bracket; 32. Motor body; 33. Rotating shaft; 34. Stirring blade; 35. Water inlet pipe; 36. Water outlet pipe; 37. Conveying pump; 38. Connecting pipe; 4. Legs; 5. Furnace body. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a boiler phosphate dosing device, including a base plate 1, a U-shaped frame 22, and a stirring assembly. A support frame 4 is fixedly connected to the top of the base plate 1. A furnace body 5 is fixedly connected inside the support frame 4. The stirring assembly is installed inside the furnace body 5. The U-shaped frame 22 is installed inside the furnace body 5. A movable frame 25 is slidably connected inside the U-shaped frame 22. A loading hopper 28 is fixedly connected inside the movable frame 25. A fixing block 29 is fixedly connected to the outside of the loading hopper 28. An optical axis 210 is rotatably connected inside the fixing block 29. A rotating block 211 is fixedly connected to the outside of the optical axis 210. The end of the rotating block 211 away from the optical axis 210 is fixedly connected to... A baffle 213 is installed at the bottom of the charging hopper 28. The furnace body 5 is fixedly connected to the inlet 23, and the bottom of the inlet 23 is fixedly connected to the conveying layer 24. The moving frame 25 is installed at the bottom of the conveying layer 24. The moving frame 25 moves back and forth inside the U-shaped frame 22 to add phosphate to the charging hopper 28. This simplifies the operation and allows for continuous addition, preventing operators from coming into contact with the high-temperature boiler or chemicals and improving the practicality of the device. The stirring component extracts the stirred phosphate solution from the furnace body 5 and then transports it to the boiler, thus completing the phosphate addition to the boiler.
[0021] Please see Figure 2 - Figure 4In this embodiment, the U-shaped frame 22 has a corresponding groove at the corresponding position of the moving frame 25. The moving frame 25 is slidably connected in the groove of the U-shaped frame 22, which limits the movement of the moving frame 25 and improves its sliding stability. The moving frame 25 has a corresponding groove at the corresponding position of the charging bucket 28. The charging bucket 28 is fixedly connected in the groove of the moving frame 25. The charging bucket 28 is then moved to the inside of the L-shaped plate 26, where the moving frame 25 contacts the U-shaped frame 22, limiting its movement. When the charging bucket 28 is moved to the bottom of the conveying layer 24, the phosphate inside the feed inlet 23 will fall back into the charging bucket 28. However, the baffle 213 prevents the phosphate from flipping over through the L-shaped plate 26. This process is repeated to perform the dosing operation. The bottom of the feed inlet 23 is funnel-shaped to facilitate the phosphate falling into the charging bucket 28. A hydraulic telescopic rod 27 is fixedly connected inside the furnace body 5. The left end is fixedly connected to the right end of the movable frame 25. A support frame 21 is fixedly connected inside the furnace body 5. A U-shaped frame 22 is fixedly connected to the inner side of the support frame 21. A torsion spring 212 is fixedly connected between the rotating block 211 and the fixed block 29. An L-shaped plate 26 is fixedly connected to the bottom of the U-shaped frame 22. The charging bucket 28 and the baffle 213 are set inside the L-shaped plate 26. The movable frame 25 moves back and forth inside the U-shaped frame 22, which drives the phosphate in the charging bucket 28 to perform the dosing operation. This simplifies the operation steps and allows for continuous dosing, avoiding the risk of operators coming into contact with high-temperature boilers or chemical agents, and improving the practicality of the device. There are two torsion springs 212, which are symmetrically distributed between the rotating block 211 and the fixed block 29. After the phosphate in the charging bucket 28 is added, the two torsion springs 212 use their elasticity to drive the feed inlet 23 to reset, so that the baffle 213 is attached to the bottom of the charging bucket 28.
[0022] Please see Figure 1 - Figure 5 In this embodiment, the stirring assembly includes a motor bracket 31, which is fixedly connected to the outside of the foot bracket 4. A motor body 32 is fixedly connected to the top of the motor bracket 31. A rotating shaft 33 is fixedly connected to the output end of the motor body 32. The rotating shaft 33 is rotatably connected to the inside of the furnace body 5. A stirring blade 34 is fixedly connected to the outside of the rotating shaft 33. A water inlet pipe 35 is fixedly connected to the inside of the furnace body 5. A water outlet pipe 36 is fixedly connected to the inside of the furnace body 5. A delivery pump 37 is fixedly connected to the top of the bottom plate 1. A connecting pipe 38 is fixedly connected between the delivery pump 37 and the water outlet pipe 36. The stirring assembly extracts the phosphate brine that has been stirred in the furnace body 5 and then delivers it to the boiler, thereby completing the phosphate addition work of the boiler.
[0023] Before use, phosphate is poured into the feed inlet 23 for storage. The phosphate inside the feed inlet 23 falls into the charging hopper 28 through the conveying layer 24. When needed, the hydraulic telescopic rod 27 is activated, causing the moving frame 25 to slide inside the U-shaped frame 22, which in turn moves the charging hopper 28. When the charging hopper 28 moves to the left side of the L-shaped plate 26, the moving frame 25 contacts the conveying layer 24, preventing the phosphate from falling. The L-shaped plate 26 does not limit the baffle 213, allowing the phosphate inside the charging hopper 28 to rotate via the rotating block 211 due to gravity, thus conveying the phosphate inside the charging hopper 28 into the furnace body 5. When there is no phosphate inside the charging hopper 28, the torsion spring 212, through its elasticity, causes the feed inlet 23 to reset, causing the baffle 213 to adhere to the charging hopper 28. At the bottom, the loading bucket 28 is moved to the inside of the L-shaped plate 26. The moving frame 25 contacts the U-shaped frame 22 to limit its movement. It is then moved directly below the conveying layer 24. At this time, the phosphate inside the feed inlet 23 will fall back into the loading bucket 28. However, the baffle 213 prevents it from flipping over through the L-shaped plate 26. This process is repeated to perform the dosing operation. Then, water is injected into the furnace body 5 through the water inlet pipe 35. After the water injection is completed, the motor body 32 is started. The motor body 32 drives the rotating shaft 33 to rotate inside the furnace body 5 through the output shaft. The rotating shaft 33 drives the stirring blade 34 to stir the phosphate and water in the furnace body 5, accelerating the fusion of phosphate and water. After the phosphate and water are fused, the delivery pump 37 is started. The delivery pump 37 extracts the phosphate brine in the furnace body 5 through the water outlet pipe 36 and the connecting pipe 38, and then delivers it to the boiler, thus completing the phosphate addition work for the boiler.
[0024] Through the above steps, the moving frame 25 reciprocates inside the U-shaped frame 22, allowing it to add phosphate to the filling tank 28. This simplifies the operation and ensures continuous dosing, preventing operators from coming into contact with high-temperature boilers or chemicals. This solves the problems of complicated operation, inability to continuously add chemicals, and safety hazards.
Claims
1. A boiler phosphate dosing device, comprising a base plate (1), characterized in that: It also includes a U-shaped frame (22) and a stirring assembly. A foot bracket (4) is fixedly connected to the top of the base plate (1). A furnace body (5) is fixedly connected inside the foot bracket (4). A stirring assembly is installed inside the furnace body (5). A U-shaped frame (22) is installed inside the furnace body (5). A movable frame (25) is slidably connected inside the U-shaped frame (22). A loading hopper (28) is fixedly connected inside the movable frame (25). A fixing block (29) is fixedly connected to the outside of the loading hopper (28). The inner part of the block (29) is rotatably connected to the optical shaft (210), and the outer part of the optical shaft (210) is fixedly connected to the rotating block (211). The end of the rotating block (211) away from the optical shaft (210) is fixedly connected to the baffle (213). The baffle (213) is set at the bottom of the loading barrel (28). The inner part of the furnace body (5) is fixedly connected to the feed inlet (23). The bottom of the feed inlet (23) is fixedly connected to the conveying layer (24). The moving frame (25) is set at the bottom of the conveying layer (24).
2. The boiler phosphate dosing device according to claim 1, characterized in that: The U-shaped frame (22) has a corresponding groove at the corresponding position of the movable frame (25), and the movable frame (25) is slidably connected in the groove of the U-shaped frame (22).
3. The boiler phosphate dosing device according to claim 1, characterized in that: The movable frame (25) has a matching groove at the corresponding position of the loading barrel (28), and the loading barrel (28) is fixedly connected in the groove of the movable frame (25).
4. The boiler phosphate dosing device according to claim 1, characterized in that: The bottom of the feed inlet (23) is set in a funnel shape.
5. The boiler phosphate dosing device according to claim 1, characterized in that: A hydraulic telescopic rod (27) is fixedly connected inside the furnace body (5). The left end of the hydraulic telescopic rod (27) is fixedly connected to the right end of the movable frame (25). A support frame (21) is fixedly connected inside the furnace body (5). A U-shaped frame (22) is fixedly connected to the inside of the support frame (21). A torsion spring (212) is fixedly connected between the rotating block (211) and the fixed block (29). An L-shaped plate (26) is fixedly connected to the bottom of the U-shaped frame (22). A loading bucket (28) and a baffle (213) are set inside the L-shaped plate (26).
6. The boiler phosphate dosing device according to claim 5, characterized in that: There are two torsion springs (212), which are symmetrically distributed between the rotating block (211) and the fixed block (29).
7. The boiler phosphate dosing device according to claim 1, characterized in that: The stirring assembly includes a motor bracket (31), which is fixedly connected to the outside of the foot bracket (4). The top of the motor bracket (31) is fixedly connected to the motor body (32). The output end of the motor body (32) is fixedly connected to the rotating shaft (33). The rotating shaft (33) is rotatably connected to the inside of the furnace body (5). The outside of the rotating shaft (33) is fixedly connected to the stirring blade (34). The inside of the furnace body (5) is fixedly connected to the water inlet pipe (35). The inside of the furnace body (5) is fixedly connected to the water outlet pipe (36). The top of the bottom plate (1) is fixedly connected to the conveying pump (37). A connecting pipe (38) is fixedly connected between the conveying pump (37) and the water outlet pipe (36).