A product pretreatment auxiliary device based on strontium chloride refrigerant

Abstract

This invention discloses a product pretreatment auxiliary device based on strontium chloride refrigerant, comprising: a preparation tank with a collection tray sealed at its bottom; a grinding sieve casing, which is conical in shape and is fixedly connected to the preparation tank, dividing the tank cavity into an upper processing chamber and a lower collection chamber; a pushing and stirring assembly, which is rotatably mounted on the top of the preparation tank and pressed against the outer surface of the grinding sieve casing, and is driven to rotate by a first transmission assembly, wherein the pushing and stirring assembly has a rotating shaft inside, which is driven by a second transmission assembly, and a scraping assembly is mounted at the bottom of the rotating shaft and pressed against the inner surface of the grinding sieve casing; and a first heating assembly, which extends through the rotating shaft into the scraping assembly.

Description

Technical Field

[0001] This invention relates to the field of strontium chloride preparation technology, specifically to a product pretreatment auxiliary device based on strontium chloride refrigerant. Background Technology

[0002] SrCl2 can be used as a refrigerant in adsorption refrigeration, but it is prone to absorbing water and agglomerating. Among them, the SrCl2 / activated carbon and SrCl2 / CaSO4 composite adsorbents exhibit significantly improved refrigeration performance compared to pure SrCl2. For example, at a heat source temperature of 100℃, their respective unit degelatinizing agent-based adsorbent refrigeration capacities are 2.1 times and 1.4 times that of strontium chloride adsorbent, respectively. Furthermore, the unit degelatinizing agent-based adsorbent refrigeration capacity of the SrCl2 / activated carbon adsorbent is 1.4 times that of the SrCl2 / CaSO4 adsorbent, and it possesses excellent specific surface area and pore structure.

[0003] Therefore, when using SrCl2 combined with activated carbon or CaSO4 to prepare composite adsorbents for refrigeration, existing pretreatment devices for SrCl2-based composite adsorbents typically involve dehydrating and drying SrCl2·6H2O and CaSO4·2H2O separately, grinding them into powder for later use, and then subjecting them to high-temperature dehydration to obtain porous anhydrous SrCl2 / activated carbon or SrCl2 / CaSO4. These are then ground, sieved, and dried to obtain finished particles. This process not only has low efficiency but also produces composite particles with uneven size, poor porosity on the particle surface, and a tendency to retain powder.

[0004] Therefore, those skilled in the art have provided a product pretreatment auxiliary device based on strontium chloride refrigerant to solve the problems mentioned in the background art. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a product pretreatment auxiliary device based on strontium chloride refrigerant, comprising:

[0006] The preparation tank has a collection tray sealed at its bottom.

[0007] The grinding screen casing, which has a conical structure, is fixedly connected to the preparation tank and divides the tank cavity into an upper processing chamber and a lower collection chamber.

[0008] A pushing and grinding assembly is rotatably mounted on the top of the preparation tank and pressed against the outer surface of the grinding screen shell. Driven by a first transmission assembly, it rotates to push the raw material near the surface of the grinding screen shell against it, causing friction. The pushing and grinding assembly contains a rotating shaft driven by a second transmission assembly. A scraping assembly, which is pressed against the inner surface of the grinding screen shell, is mounted at the bottom of the rotating shaft.

[0009] The first heating component extends through the rotating drum shaft into the scraping component.

[0010] As a further preferred embodiment of the present invention, the top of the preparation tank is provided with one end of a first reflux pipe, the other end of the first reflux pipe is connected to the bottom of the upper processing chamber, and the first reflux pipe is also provided with a first air extraction cylinder.

[0011] As a further preferred embodiment of the present invention, a filter head is also embedded in the top of the preparation tank. One end of the filter head is connected to a second reflux pipe. The other end of the second reflux pipe is connected to the collection tray. A second air extraction cylinder is also provided on the second reflux pipe. A gas diffuser is installed at the end of the second reflux pipe located inside the collection tray, and a filter head is provided in the gas diffuser.

[0012] As a further preferred embodiment of the present invention, a dispersing ball is provided above the gas dispersing hood, and an inverted conical screen support shell is fitted around the middle of the dispersing ball, and the upper end of the screen support shell is fixed on the scraping assembly.

[0013] As a further preferred embodiment of the present invention, a second heating component is provided outside the preparation tank at the top of the feeding chamber, and an adsorption mesh frame is fixed to the inner wall of the preparation tank at the top of the feeding chamber. A cleaning roller brush installed on the pushing and stirring assembly is attached to the upper surface of the adsorption mesh frame.

[0014] As a further preferred embodiment of the present invention, the temperature range of the second heating element is ° to °, and the temperature range of the first heating element is above °.

[0015] As a further preferred embodiment of the present invention, the pushing and stirring assembly includes:

[0016] The top shell is rotatably connected to the top of the preparation tank;

[0017] The grinding screw blades have a conical single-turn semi-spiral structure and are circumferentially distributed and fixed on the top cylinder shell; and

[0018] The retaining ring is used to secure the bottom end of the grinding screw blade as a single unit.

[0019] As a further preferred embodiment of the present invention, the inner spiral curved end of the grinding screw is provided with uniformly arranged grinding grooves.

[0020] As a further preferred embodiment of the present invention, the scraping assembly includes:

[0021] The upper rotating ring rotates on the top cylinder shell;

[0022] The scraping screw blade has a conical single-turn semi-spiral structure and is fixed to the upper rotating ring in a circumferential distribution. The two edges of the scraping screw blade are respectively provided with oblique scraping surfaces.

[0023] The lower conversion is used to fix the bottom end of the scraping screw blade as a whole, and also for fixing and assembling the bottom shell of the screen support.

[0024] As a further preferred embodiment of the present invention, grinding heads smaller than the grinding groove are also distributed on the outer wall of the grinding screen casing.

[0025] Compared with the prior art, the present invention provides a product pretreatment auxiliary device based on strontium chloride refrigerant, which has the following beneficial effects:

[0026] In this invention, the combination of a grinding sieve shell and a pushing and stirring grinding assembly not only grinds and sieves the SrCl2·6H2O raw material, but also further agitates it, improving its flowability and separability and preventing agglomeration. A scraping assembly then promptly scrapes and grinds the SrCl2·6H2O raw material embedded in or extending into the grinding sieve shell, preventing blockage. Furthermore, the second heating assembly and related structures such as the first and second suction cylinders allow the airborne micro-powder particles to recombine and agglomerate into larger particles, enabling further dehydration and grinding. This significantly increases the product yield for the same specifications and avoids raw material waste. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the pretreatment auxiliary device of the present invention;

[0028] Figure 2 This is a partial structural diagram of the pushing and stirring mill assembly of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the scraping screw blade of the present invention;

[0030] Figure 4 This is a schematic diagram of the grinding groove structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the grinding head structure of the present invention;

[0032] In the diagram: 1. Preparation tank; 2. Collection support shell; 3. Grinding sieve casing; 4. Pushing and stirring grinding assembly; 5. First transmission assembly; 6. Upper air pipe; 7. First return pipe; 8. Filter head one; 9. First suction cylinder; 10. Second return pipe; 11. Second suction cylinder; 12. Dispersing hood; 13. Filter head two; 14. First heating assembly; 15. Second transmission assembly; 16. Second heating assembly; 17. Adsorption mesh frame; 18. Cleaning roller brush; 19. Sift support bottom shell; 20. Top cylinder shell; 21. Pushing grinding screw blade; 22. Fixing ring one; 23. Upper rotating ring; 24. Scraping grinding screw blade; 25. Lower rotating ring; 26. Dispersing ball; 27. Grinding groove; 28. Grinding head; 29. ​​Rotating cylinder shaft; 30. Inclined scraping surface. Detailed Implementation

[0033] Reference Figure 1-5 The present invention provides a technical solution: a product pretreatment auxiliary device based on strontium chloride refrigerant, comprising:

[0034] Preparation tank 1, with a collection tray 2 sealed at its bottom;

[0035] The grinding sieve 3 has a conical structure, and the angle between the inclined surface of the grinding sieve 3 and the horizontal plane is set to 60°. It is fixedly connected to the preparation tank 1 and divides the tank cavity of the preparation tank 1 into an upper processing chamber and a lower collection chamber. The preparation tank tube wall in the upper processing chamber has an inward inclined structure. The added SrCl2·6H2O raw material tends to press and flow towards the surface of the grinding sieve 3 so that all the SrCl2·6H2O raw material passes through the grinding sieve 3.

[0036] The pressing and grinding assembly 4 is rotatably mounted on the top of the preparation tank 1 and pressed against the outer surface of the grinding sieve shell 3. Driven by the first transmission assembly 5, it rotates and further agitates the SrCl2·6H2O raw material, improving its flowability and separability, and preventing agglomeration. The pressing and grinding assembly 4 contains a rotating cylinder shaft 29, driven by the second transmission assembly 15. A scraping assembly, pressed against the inner surface of the grinding sieve shell 3, is mounted at the bottom of the rotating cylinder shaft 29 for scraping and cutting the SrCl2·6H2O raw material pressed and embedded in the grinding sieve shell by the pressing and grinding assembly.

[0037] The first heating component 14 extends through the rotating drum shaft 29 into the scraping component and is used for dehydration treatment of SrCl2·6H2O raw material.

[0038] In this embodiment, the top of the preparation tank 1 is embedded with one end of a first reflux pipe 7, and the other end of the first reflux pipe 7 is connected to the bottom of the upper processing chamber. The first reflux pipe 7 is also equipped with a first suction cylinder 9, which draws the floating micro-powder generated by stirring and scraping the SrCl2·6H2O raw material back into the SrCl2·6H2O raw material, so that the SrCl2·6H2O raw material is fully dehydrated and the dehydration efficiency is improved.

[0039] In this embodiment, a filter head 8 is embedded in the top of the preparation tank 1. One end of a second reflux pipe 10 is connected to the filter head 8. The other end of the second reflux pipe 10 is connected to the collection tray 2. A second suction cylinder 11 is also provided on the second reflux pipe 10. A gas diffuser 12 is installed at the end of the second reflux pipe located in the collection tray. A filter head 13 is provided in the gas diffuser 12. After filtering the gas in the upper processing chamber, the gas is drawn back into the lower collection chamber, so that the micro-powder particles floating in the lower collection chamber float upward, avoiding the collection of small-diameter SrCl2 particles and improving the accuracy and quality of SrCl2 preparation.

[0040] In this embodiment, a dispersing ball 26 is provided above the gas dispersing hood 12. An inverted conical sieve bottom shell 19 is fitted around the middle of the dispersing ball 26. Through centrifugal force, SrCl2 can be rolled and screened out on the outer inclined surface. The size of the sieve hole of the sieve bottom shell 19 is slightly larger than the size of the sieve hole of the grinding sieve. The upper end of the sieve bottom shell 19 is fixed on the scraping assembly. The gas dispersing direction of the gas dispersing hood 12 is top-dispersed, and at the same time, it prevents SrCl2 falling from the sieve bottom shell 19 from falling into the gas dispersing hood.

[0041] In this embodiment, a second heating component 16 is provided outside the preparation tank 1 at the top of the feeding chamber. An adsorption mesh frame 17 is fixed to the inner wall of the preparation tank 1 at the top of the feeding chamber. A cleaning roller brush 18 installed on the pushing and stirring assembly 4 is attached to the upper surface of the adsorption mesh frame 17. The adsorption mesh frame can absorb water molecules in the gas, and then combine and agglomerate the floating micro-powder SrCl2 through the adsorption of water molecules. The second heating component is used to control the amount of water molecules combined with SrCl2 to form SrCl2·nH2O, where n<6. This forms larger particles of micro-powder SrCl2 agglomerates. The large particles formed are swept down into the SrCl2·6H2O raw material by the cleaning roller brush and dehydrated again. This process further improves the preparation rate of particles that meet the required particle size.

[0042] In this embodiment, the temperature range of the second heating component 16 is 50° to 70°, and 60° is used in this embodiment, so that the formed SrCl2·nH2O is SrCl2·2H2O. The temperature range of the first heating component 14 is above 300°, and 400° is used in this embodiment to dehydrate SrCl2·6H2O.

[0043] In this embodiment, the pushing and stirring assembly 4 includes:

[0044] The top shell 20 is rotatably connected to the top of the preparation tank 1. When viewed from top to bottom, the top shell 20 rotates slowly counterclockwise to fully push and grind the SrCl2·6H2O raw material.

[0045] The grinding screw 21 has a conical single-turn semi-spiral structure and is circumferentially distributed and fixed on the top cylinder shell 20; and

[0046] The retaining ring 22 is used to secure the bottom end of the grinding screw 21 as a single unit.

[0047] In this embodiment, the inner spiral curved end of the grinding screw 21 is provided with uniformly arranged grinding grooves 27, which fully improves the grinding effect.

[0048] In this embodiment, the scraping assembly includes:

[0049] The upper rotating ring 23 rotates on the top cylinder shell 20;

[0050] The scraping screw 24 has a conical single-turn semi-spiral structure and is circumferentially fixed on the upper rotating ring 23. The two edges of the scraping screw are respectively provided with inclined scraping surfaces 30. The scraping screw rotates in the same direction as the pushing screw, and its rotation speed is much higher than that of the pushing screw.

[0051] The lower converter 25 is used to fix the bottom end of the scraping screw 24 as a whole, and also to fix and assemble the bottom shell 19 of the screen support.

[0052] In this embodiment, the outer wall of the grinding screen sieve shell 3 is also distributed with grinding heads 28 smaller than the grinding groove 27, to prevent the SrCl2·6H2O raw material from adsorbing on the surface of the grinding screen sieve shell, and at the same time, to further improve the friction effect in conjunction with the grinding groove.

[0053] In practice, after the SrCl2·6H2O raw material is introduced into the upper processing chamber, the first heating component is activated to raise the temperature of the upper processing chamber to 400°C, and the second heating component is activated to raise the temperature of its corresponding area to 60°C. Then, the first transmission component is activated to drive the pushing and stirring grinding component to rotate, and the second transmission component is activated to drive the rotating drum shaft to rotate. The first and second suction cylinders are activated to evacuate the gas in the upper processing chamber until the SrCl2·6H2O raw material in the feeding chamber completely falls into the collection tray, thus completing the pretreatment of the SrCl2 product.

[0054] The above description is merely a preferred embodiment of the invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A strontium chloride refrigerant based product pre-treatment aid characterized by: The application relates to a preparation tank (1) with a collecting shell (2) at the bottom end, a grinding and screening shell (3) in a conical structure fixedly connected across the preparation tank (1) to divide the tank cavity into an upper processing cavity and a lower collecting cavity, a push and stirring grinding assembly (4) rotatably installed at the top end of the preparation tank (1) and pressed against the outer surface of the grinding and screening shell (3), driven to rotate by a first transmission assembly (5), and provided with a rotating drum shaft (29) in the push and stirring grinding assembly (4), driven by a second transmission assembly (15), and the bottom end of the rotating drum shaft (29) is provided with a scraping and grinding assembly abutting against the inner surface of the grinding and screening shell (3), and a first heating assembly (14) penetrating through the rotating drum shaft (29) and extending into the scraping and grinding assembly. The push and stirring grinding assembly (4) comprises a top cylinder shell (20) rotatably connected with the top of the preparation tank (1), push and grinding spiral blades (21) in a conical single-circle half-spiral structure and fixedly arranged on the top cylinder shell (20) in a circumferential distribution, and a retaining ring I (22) for fixing the bottom end of the push and grinding spiral blades (21) integrally. The inner screw curved edge end of the push and grinding spiral blades (21) is provided with uniformly arranged grinding grooves (27). The scraping and grinding assembly comprises an upper rotating ring (23) rotatably arranged on the top cylinder shell (20), scraping and grinding spiral blades (24) in a conical single-circle half-spiral structure and fixedly arranged on the upper rotating ring (23) in a circumferential distribution, and the two edge ends of the scraping and grinding spiral blades are respectively provided with inclined scraping surfaces (30), and a lower rotating ring (25) for fixing the bottom end of the scraping and grinding spiral blades (24) integrally and also for fixing and assembling a screening bottom shell (19). The top of the preparation tank (1) is embedded with one end of a first return pipe (7), the other end of the first return pipe (7) is connected with the bottom of the upper processing cavity, and the first return pipe (7) is further provided with a first air suction cylinder (9). The top of the preparation tank (1) is further embedded with a filter head I (8), the filter head I (8) is externally connected with one end of a second return pipe (10), the other end of the second return pipe (10) is connected with the collecting shell (2), the second return pipe (10) is further provided with a second air suction cylinder (11), and the end of the second return pipe located in the collecting shell is provided with a gas diffuser cover (12), and the gas diffuser cover (12) is provided with a filter head II (13). The gas diffuser cover (12) is provided with a dispersing ball (26), the outer middle part of the dispersing ball (26) is sleeved with an inverted conical screening bottom shell (19), and the upper end of the screening bottom shell (19) is fixed on the scraping and grinding assembly. The top of the preparation tank (1) is provided with a second heating assembly (16), the inner wall of the top of the preparation tank (1) is fixedly provided with an adsorbing dense mesh frame (17), and the upper surface of the adsorbing dense mesh frame (17) is abuttingly provided with a cleaning roller brush (18) installed on the push and stirring grinding assembly (4). The temperature range of the second heating assembly (16) is 50-70 DEG, and the temperature range of the first heating assembly (14) is above 200 DEG. The outer shell wall of the grinding and screening shell (3) is further provided with grinding heads (28) smaller than the grinding grooves (27). ​ ​ 2. A strontium chloride refrigerant based product pre-treatment aid according to claim 1 characterised in that: ​ 3. A strontium chloride refrigerant based product pre-treatment aid according to claim 2, characterised in that: ​ 4. A strontium chloride refrigerant based product pre-treatment aid according to claim 3, characterised in that: ​ 5. A strontium chloride refrigerant based product pre-treatment assist device according to claim 1, characterised in that: ​ 6. A strontium chloride refrigerant based product pre-treatment aid according to claim 5, characterised in that: ​ 7. A strontium chloride refrigerant based product pre-treatment assist device according to claim 1 characterised in that: ​

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