Novel sodium hexametaphosphate crushing device
By using water-cooled cooling technology and specific materials in the sodium hexametaphosphate crushing device, the problems of operator scalds and bearing damage caused by high temperature of the equipment are solved, which extends the equipment life and controls the particle size of the material.
Patent Information
- Application Number
- CN202420314428.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-20
AI Technical Summary
During the crushing process of sodium hexametaphosphate, the high temperature of the equipment causes scalding of the operator and bearing damage, and the high temperature of the product after crushing affects the packaging and equipment life.
A new crushing device was designed, using water-cooling cooling technology. By setting a long toothed structure on the contact surface of the inner wall of the crusher and the crushing roller, the bearing is inserted into the cooling pipe in a hollow structure, and cooling water is installed at the outer shell and bearing of the crusher. Imported and exported, 304 stainless steel and manganese steel materials are used to improve the heat and wear resistance of the equipment.
It effectively reduces the risk of bearing damage and equipment temperature, extends the service life of the equipment, reduces the occurrence of safety accidents, and controls the particle size of the material through the screen.
Smart Images
Figure CN222267292U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sodium hexametaphosphate production, and particularly relates to a novel sodium hexametaphosphate crushing device. Background Art
[0002] The raw materials, soda ash (sodium carbonate) and phosphoric acid, are added to the neutralization pot in a certain ratio, and then water is added. The mixture is heated and stirred to react. The pH value and specific gravity are tested. After passing the test, the impurities are filtered out by a fine filter and then pumped into a high-level slurry storage tank. The slurry automatically enters the melting furnace. Under the condition that the gas combustion provides heat energy, the slurry undergoes a polymerization reaction to generate molten sodium hexametaphosphate. The molten hexametaphosphate in a high-temperature state flows into the quencher from the discharge port and is cooled into a flake solid. It is then transported to the crusher through a twisting cage and broken into small pieces. Then it is lifted to the rotary vibrating screen for screening, and hexametaphosphates of different mesh sizes are separated. The preceding and following processes are that after a period of reaction in the molten pool, the raw material of sodium hexametaphosphate is transformed into a mature material, and then it is transported to the quencher through the flow port. After cooling and flaking, it is transported to the crusher through the material twisting cage for crushing and then sent to the subsequent production link. The crushing principle is to squeeze the crushing roller and the inner wall of the crusher to crush the large pieces of sodium hexametaphosphate after flaking to a diameter of about 2 cm, and then screen through the bottom screen plate to meet the crushing requirements.
[0003] During this process, the cooling and tableting temperature of sodium hexametaphosphate is about 200℃, and the temperature of the crusher and the packaging pipeline to the silo is ≥70℃, which may cause the packaging bags to be scalded. At the same time, due to the heat conduction of sodium hexametaphosphate during the crushing process, the surface temperature of the crusher can reach 120℃. First, the on-site operators may be scalded due to accidental contact. Second, due to the high transmission temperature in the bearing seat of the equipment transmission, the equipment is under heavy load, and the lubricating oil deteriorates at high temperature, which may cause the equipment to get stuck or the bearings to be damaged. Summary of the invention
[0004] In view of the problems arising in the above-mentioned prior art, the utility model provides a novel sodium hexametaphosphate crushing device, and its technical solution is: it comprises a base, a driving motor and a frame are arranged on the base, a crusher is arranged on the frame, and the structure of the crusher is: a feed baffle is arranged at the feed inlet of the crusher shell, the crusher shell and the inner wall of the crusher form a jacket space, a bearing is arranged inside the crusher, the driving motor is slidably connected to the bearing through a transmission belt, a crushing roller is arranged on the bearing and is rotatably connected to the bearing, and a discharge port is arranged at the bottom of the crusher shell; a cooling water inlet and a cooling water outlet are arranged at the feed inlet of the jacket space.
[0005] The contact surface between the inner wall of the crusher and the crushing roller is a long strip tooth-shaped structure.
[0006] A screen is arranged at the intersection of the discharge port and the base to control the particle size of the material.
[0007] The interior of the bearing is a hollow structure, and a bearing cooling pipe is inserted into the interior to cool the lubricating oil of the bearing. The bearing cooling pipe is provided with a bearing cooling pipe water inlet and a bearing cooling pipe water outlet.
[0008] As a preferred solution, the material of the crusher shell is 304 stainless steel, which has good thermal conductivity, smoothness and corrosion resistance, and the material of the crushing roller is manganese steel, which has good ability to withstand impact, extrusion and wear.
[0009] Beneficial effects of the utility model:
[0010] The crusher bearings and housing are both water-cooled. Bearing water cooling reduces the risk of bearing damage, and housing water cooling can lower product temperature, extend equipment life and reduce the occurrence of safety accidents. In addition, the screen can be added to control the particle size of the material. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a front view of the utility model.
[0012] Figure 2 It is a top view of the utility model.
[0013] In the figure: 1. Crusher casing; 2. Crusher inner wall; 3. Crushing roller; 4. Bearing; 5. Cooling water inlet; 6. Cooling water outlet; 7. Base; 8. Discharge port; 9. Screen plate; 10. Bearing cooling pipe; 11. Bearing cooling pipe water inlet; 12. Bearing cooling pipe water outlet; 13. Driving motor; 14. Driving belt; 15. Frame; 16. Feed baffle. DETAILED DESCRIPTION
[0014] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] Example 1
[0016] A novel sodium hexametaphosphate crushing device comprises a base 7, a driving motor 13 and a frame 15 are arranged on the base 7, a crusher is arranged on the frame 15, and the structure of the crusher is as follows: a feed baffle 16 is arranged at the feed inlet of the crusher shell 1, the crusher shell 1 and the crusher inner wall 2 form a jacket space, a bearing 4 is arranged inside the crusher, the driving motor 13 is slidably connected to the bearing 4 through a transmission belt 14, a crushing roller 3 is arranged on the bearing 4 and is rotatably connected thereto, and a discharge port 8 is arranged at the bottom of the crusher shell 1; the jacket space is provided with a cooling water inlet 5 and a cooling water outlet 6 at the feed inlet.
[0017] The contact surface between the inner wall 2 of the crusher and the crushing roller 3 is a long strip tooth-like structure.
[0018] A sieve plate 9 is provided at the intersection of the discharge port 8 and the base 7 .
[0019] The bearing 4 is hollow inside, into which a bearing cooling pipe 10 is inserted. The bearing cooling pipe 10 is provided with a bearing cooling pipe water inlet 11 and a bearing cooling pipe water outlet 12 .
[0020] Furthermore, the material of the crusher housing 1 is 304 stainless steel, and the material of the crushing roller 3 is manganese steel.
[0021] Example 2
[0022] The device described in Example 1 is used, and its operation process is as follows: the flaky sodium hexametaphosphate cooled by the quencher is transported to the feed port of the crusher through an auger, and is crushed into small pieces of sodium hexametaphosphate by squeezing the crushing roller 3 and the inner wall 2 of the crusher, and then discharged to the next process through the discharge port 8 and the screen plate 9. During the crushing process, cooling water is injected into the cooling water inlet 5 to cool the product and the inside of the crusher, and the cooling water is discharged through the cooling water outlet 6. The lubricating oil of the bearing is cooled by injecting cooling water into the bearing cooling pipe 10. The bearing cooling water enters and exits through the bearing cooling pipe water inlet 11 and the bearing cooling pipe water outlet 12 to ensure that the lubricating oil will not deteriorate due to high temperature.
Claims
1. A novel sodium hexametaphosphate crushing device, characterized in that: The invention comprises a base (7), a driving motor (13) and a frame (15) are arranged on the base (7), a crusher is arranged on the frame (15), and the structure of the crusher is as follows: a feeding baffle (16) is arranged at the feeding port of the crusher housing (1), the crusher housing (1) and the inner wall (2) of the crusher form a jacket space, a bearing (4) is arranged inside the crusher, the driving motor (13) is slidably connected to the bearing (4) through a transmission belt (14), a crushing roller (3) is arranged on the bearing (4) and is rotatably connected thereto, and a discharge port (8) is arranged at the bottom of the crusher housing (1); and a cooling water inlet (5) and a cooling water outlet (6) are arranged at the feeding port of the jacket space.
2. A novel sodium hexametaphosphate crushing device according to claim 1, characterized in that: The contact surface between the inner wall (2) of the crusher and the crushing roller (3) is a long strip tooth-shaped structure.
3. A novel sodium hexametaphosphate crushing device according to claim 1, characterized in that: A sieve plate (9) is provided at the intersection of the discharge port (8) and the base (7).
4. A novel sodium hexametaphosphate crushing device according to claim 1, characterized in that: The interior of the bearing (4) is a hollow structure, into which a bearing cooling pipe (10) is inserted, and the bearing cooling pipe (10) is provided with a bearing cooling pipe water inlet (11) and a bearing cooling pipe water outlet (12).