Novel sodium hexametaphosphate advection filter
By designing a new sodium hexametaphosphate advection filter in the production process of sodium hexametaphosphate, using a stepped base and an advection cell with concave and convex structure, combined with gravity principle and overflow port design, the silicon carbide brick powder falls off in high-temperature reactions is solved The problem is that the product quality stability and impurity removal effect are achieved.
Patent Information
- Application Number
- CN202420351844.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-26
AI Technical Summary
During the current production process of sodium hexametaphosphate, silicon carbide brick powder falls off due to high temperature reactions, resulting in black granular impurities, affecting product quality and is often complained by customers.
Design a new type of sodium hexametaphosphate advection filter, using a stepped base and an advection cell with concave and convex structure, combined with gravity principle and overflow port design, black silicon carbide brick particles are deposited at the bottom of the filter, through titanium alloy material and multiple Layer advection tank design ensures that impurities do not enter the product.
It effectively reduces the generation of black impurities, improves product quality stability, ensures that the product does not contain black silicon carbide brick powder, and enhances the settlement filtration effect.
Smart Images
Figure CN222266451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sodium hexametaphosphate production, in particular to a novel sodium hexametaphosphate advection filter. Background Art
[0002] The production of sodium hexametaphosphate for food adopts high-temperature smelting reaction. The smelting pool is built with silicon carbide bricks. The pipeline gas is manually controlled and adjusted through the gas burner to generate heat to heat the sodium dihydrogen phosphate to smelt and produce sodium hexametaphosphate. The high-temperature molten sodium hexametaphosphate product flows out through the silicon carbide guide trough, goes through cooling, crushing, pulverizing, screening and other processes, and is packaged after completion.
[0003] The original hexametaphosphate polymerization furnace has a simple structure. The furnace body is built with silicon carbide bricks. The gas is burned and heated in the furnace to cause the neutralized slurry to undergo a polymerization reaction, generating a high-temperature molten liquid product of sodium hexametaphosphate, which flows out through the silicon carbide guide groove. Due to long-term high-temperature reaction, the silicon carbide furnace body is oxidized, and silicon carbide brick powder will fall off and be brought into the product as black granular impurities. It is the main black foreign matter in the sodium hexametaphosphate product and is often complained by customers. Summary of the invention
[0004] In view of the problem of high content of heterochromatic foreign matter in sodium hexametaphosphate in the above-mentioned prior art, the utility model provides a novel sodium hexametaphosphate horizontal flow filter, so that when the high-temperature molten sodium hexametaphosphate product slowly flows through the device, the black silicon carbide brick particles in the product settle due to gravity and are deposited at the bottom of the horizontal flow filter and will not enter the product. The workshop production personnel regularly and promptly replace the guide groove to ensure that the deposited black silicon carbide powder can be cleaned out in time and will not be brought into the product. The technical solution is: the discharge port of the hexametaphosphate polymerization furnace is connected to the feed port of the filter, the discharge port of the filter is connected to the discharge pipe, and the discharge pipe is connected to the feed port of the quencher; side walls are arranged on both sides of the base of the filter to form a main structure, and at least one baffle is arranged in the middle to separate the horizontal flow pool.
[0005] The base of the filter is a stepped structure, and the contact surface with the material is a concave-convex structure, so that when the liquid sodium hexametaphosphate product flows through the advection pool, the silicon carbide impurities are more easily deposited on the bottom of the pool.
[0006] An overflow port is provided on the top of the baffle plate in the filter, each overflow port is arranged on the left and right sides of the baffle plate, and the overflow ports on two adjacent baffle plates are arranged on opposite sides.
[0007] As a preferred solution, the base, side walls and spoiler are all made of titanium alloy, which is resistant to high temperature and corrosion.
[0008] Beneficial effects of the utility model:
[0009] (1) Changing the material of the six-way advection filter, using corrosion-resistant titanium alloy instead of easily corrosive silicon carbide material to reduce the generation of black impurities;
[0010] (2) A multi-layer advection pool design is adopted, and overflow ports are set between each pool. The principle of gravity is used to ensure that the black impurities of silicon carbide bricks with high specific gravity remain at the bottom of the advection pool and do not enter the product;
[0011] (3) By adding a concave-convex structure to the bottom of the advection pool, the black silicon carbide brick impurities are more easily deposited on the bottom of the pool when the liquid sodium hexametaphosphate product flows through the advection pool;
[0012] (4) The position of the filter is moved from the front of the discharge pipe to the front of the discharge port. The discharge temperature of the molten sodium hexametaphosphate is higher, which facilitates the sedimentation of the fluid material to the bottom of the horizontal flow guide filter, which is beneficial to enhance the sedimentation filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the overall structure of the filter in the utility model.
[0015] Figure 3 It is a right side view of the base of the filter in the utility model.
[0016] In the figure: 1. hexagonal polymerization furnace; 2. filter; 201. base; 202. side wall; 203. baffle; 204. feed inlet; 205. discharge outlet; 206. advection tank; 207. overflow outlet; 3. discharge pipe; 4. quenching machine. DETAILED DESCRIPTION
[0017] The utility model is further described in detail below based on the accompanying drawings and specific embodiments.
[0018] Example 1
[0019] A novel sodium hexametaphosphate advection filter comprises a discharge port of a hexametaphosphate polymerization furnace 1 connected to a feed port 204 of a filter 2, a discharge port 205 of the filter 2 connected to a discharge pipe 3, and a discharge pipe 3 connected to a feed port of a quencher 4; side walls 202 are arranged on both sides of a base 201 of the filter 2 to form a main structure, and three baffles 203 are arranged in the middle to separate an advection pool 206.
[0020] The base 201 in the filter 2 is a stepped structure, and the contact surface with the material is a concave-convex structure.
[0021] An overflow port 207 is provided at the top of the baffle plate 203 in the filter 2. Each overflow port 207 is arranged on the left and right sides of the baffle plate 203. The overflow ports 207 on two adjacent baffle plates 203 are arranged on opposite sides.
[0022] Furthermore, the base 201, the side wall 202 and the spoiler 203 are all made of titanium alloy, which is resistant to high temperature and corrosion.
[0023] Example 2
[0024] The device described in Example 1 is used, and its use process is as follows: the high-temperature liquid sodium hexametaphosphate produced by the hexametaphosphate polymerization furnace 1 enters the filter 2 through the discharge port, passes through the advection tank 206, and settles due to the large specific gravity of the black silicon carbide brick particles. The bottom of the advection tank 206 is a wavy concave-convex structure, which makes it easier for black impurities to stay at the bottom of the advection tank 206 and not enter the product. Then, it continues to flow to the next advection tank 206 through the overflow port 207 on the baffle 203, and finally stays in the discharge pipe 3 through the discharge port 206, and then flows into the quencher 4.
[0025] The filter can clean out the black silicon carbide powder in the product in time and prevent it from being brought into the product, which is beneficial to the stability of product quality during the smelting process of hexametaphosphate production.
Claims
1. A novel sodium hexametaphosphate advection filter, characterized in that: The invention comprises a discharge port of a hexa-partial polymerization furnace (1) connected to a feed port (204) of a filter (2), a discharge port (205) of the filter (2) connected to a discharge pipe (3), and a discharge pipe (3) connected to a feed port of a quenching machine (4); side walls (202) are arranged on both sides of a base (201) of the filter (2) to form a main structure, and at least one baffle (203) is arranged in the middle to separate an advection pool (206).
2. A novel sodium hexametaphosphate advection filter according to claim 1, characterized in that: The base (201) in the filter (2) is a stepped structure, and the contact surface with the material is a concave-convex structure.
3. A novel sodium hexametaphosphate advection filter according to claim 1, characterized in that: An overflow port (207) is provided at the top of the baffle plate (203) in the filter (2), and each overflow port (207) is arranged on the left and right sides of the baffle plate (203), and the overflow ports (207) on two adjacent baffle plates (203) are arranged on opposite sides.