Hot melting equipment
By designing a plane hot-solution chamber and scraping blades in the hot-solution equipment, combining the heating method of steam distribution pipes and nozzles, the problems of low dissolution efficiency of potassium stone salt and large steam loss in the existing hot-solution device are solved, and the further development is achieved. Highly efficient potassium salt dissolution and potassium chloride production.
Patent Information
- Application Number
- CN202420551808.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing hot-solution device has low heat exchange efficiency, large steam loss, high energy consumption when the potassium stone salt is dissolved, and the materials are prone to deposition, resulting in low dissolution efficiency and potassium chloride cannot be fully dissolved, affecting yield and quality.
A thermal dissolution device is designed, including a tank, agitating device and a heating device. A hot-dissolving chamber is installed in the tank body, with the bottom surface being flat, and it is equipped with scraping and sweeping blades to prevent material deposition. The heating device adopts a steam distribution tube, and the steam nozzle evenly disperse the steam to improve heating efficiency.
By evenly distributing steam and effectively stirring, the dissolution efficiency of potassium stone salt is improved, steam loss is reduced, energy consumption is reduced, potassium chloride is fully dissolved, and production efficiency and product quality are improved.
Smart Images
Figure CN222518315U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to hot melt equipment, in particular to the structure of the hot melt equipment. Background Art
[0002] Sylvite is the raw material for producing potassium chloride, and its main components are potassium chloride and sodium chloride. Sylvite usually adopts the hot melt crystallization process to produce potassium chloride, that is, sylvite and dissolving liquid are added to the hot melt device. According to the different solubilities of potassium chloride and sodium chloride, the potassium chloride in the sylvite is completely dissolved in the liquid phase, and the sodium chloride exists in the solid phase. Then, it is thickened by a thickener, and the solid phase is removed after centrifugal separation to obtain a saturated refined potassium mother liquor in the liquid phase. The refined potassium mother liquor is precipitated by a cooling crystallization system to obtain potassium chloride.
[0003] The existing hot melt device has low heat exchange efficiency, large steam loss and high energy consumption when dissolving potassium salt. Moreover, the material is easy to deposit at the bottom. If the material cannot be dissolved quickly, the material will continue to deposit at the bottom of the tank, reducing the effective dissolution volume and increasing the stirring load, resulting in low dissolution efficiency. The potassium chloride in the potassium salt cannot be fully dissolved into the liquid phase, resulting in the potassium chloride content in the refined potassium mother liquor entering the thickener not meeting the standard, making it difficult to adjust the production process parameters, resulting in a decrease in the output and quality of potassium chloride.
[0004] At the same time, the existing hot melt device usually uses steam for heating, that is, steam is introduced into the hot melt device through a pipe. The steam rises quickly and is unevenly distributed, resulting in uneven heating, which affects the dissolution efficiency of potassium chloride. Moreover, a large amount of steam introduced into the hot melt device will produce a large amount of condensed water. The condensed water mixes with the slurry, which will reduce the saturation of potassium chloride when it is heated and dissolved, and have an adverse effect on the control of the production process.
[0005] The utility model aims to solve the problem that the existing hot-melt device has low dissolving efficiency for sylvite and potassium chloride cannot be fully dissolved. Utility Model Content
[0006] In order to solve the above problems, the utility model provides a hot melt device, including a tank body, a stirring device and a heating device. The top of the tank body is provided with a steam inlet, a feeding port, a steam outlet and a liquid feeding port. The upper part of the side wall of the tank body is provided with an overflow port. A hot melt cavity is formed inside, and the bottom surface of the hot melt cavity is a plane. The stirring device includes a stirring motor, a stirring rod and a scraping blade. The stirring motor is arranged on the top of the tank body. The stirring rod is arranged vertically, the upper end is fixedly connected to the rotating shaft of the stirring motor, and the lower end passes through the tank body and extends to the bottom of the hot melt cavity. The stirring rod is provided with a stirring blade.
[0007] The scraping blade is tilted and arranged at the bottom of the stirring rod, one end of which is fixedly connected to the stirring rod, and the other end of which extends radially along the stirring rod. The tilting direction of the scraping blade is arranged such that the side of the scraping blade facing the rotation direction of the scraping blade is in contact with the bottom surface of the hot melt chamber, and the side of the scraping blade away from the rotation direction of the scraping blade is spaced from the bottom surface of the hot melt chamber. The heating device includes a steam distribution pipe, which is annular and horizontally arranged at the bottom of the hot melt chamber, located above the scraping blade, and connected to the steam inlet through a connecting pipe. The steam distribution pipe is provided with a plurality of evenly distributed steam nozzles.
[0008] When the utility model is used, potassium rock salt material is added into the hot dissolving chamber from the feeding port, and the dissolving liquid is added into the hot dissolving chamber from the liquid feeding port, steam enters the steam distribution pipe from the steam inlet, and is evenly dispersed in the hot dissolving chamber by the steam nozzle on the steam distribution pipe, and the steam heats the slurry and is discharged from the steam outlet, the stirring motor is turned on, and the scraping blade and the stirring blade are driven to rotate by the stirring rod, and the solid material at the bottom of the hot dissolving chamber is swept by the scraping blade, so that the solid material and the slurry are evenly mixed, and the slurry after the potassium chloride in the potassium rock salt is dissolved is discharged from the overflow port.
[0009] The utility model sets the bottom surface of the hot melt chamber as a plane, and sets a scraping blade at the bottom of the stirring rod. The scraping blade sweeps the solid material at the bottom of the hot melt chamber to prevent the solid material from accumulating at the bottom of the hot melt chamber, so that the solid material and the slurry are evenly mixed, and the potassium chloride in the sylvite is promoted to be fully dissolved into the liquid phase. By setting a steam distribution pipe in the hot melt chamber, the steam can be evenly distributed in the hot melt chamber, so that the steam heats the slurry in the hot melt chamber evenly, improves the heating efficiency, reduces the steam loss, and improves the dissolution efficiency of potassium chloride. The utility model can solve the problem that the existing hot melt device has low dissolution efficiency for sylvite and potassium chloride cannot be fully dissolved.
[0010] Preferably, a plurality of steam distribution pipes are provided, the steam distribution pipes are annular, the diameters of the plurality of steam distribution pipes are different, and the plurality of steam distribution pipes are interconnected. The plurality of steam distribution pipes can be provided so that the steam is evenly distributed in the hot melt chamber, so that the steam evenly heats the slurry in the hot melt chamber, and improves the heating efficiency.
[0011] Preferably, an interlayer is provided on the tank body, and a heating inlet and a heating outlet communicating with the interlayer are provided on the outer wall of the tank body. The interlayer is provided on the tank body, and steam or liquid heating medium can be introduced into the interlayer through the heating inlet and the heating outlet to heat the hot melt cavity, thereby improving the heating efficiency of the slurry in the hot melt cavity, making the slurry heated evenly, and reducing the amount of steam in the hot melt cavity.
[0012] Preferably, it also includes a guide plate, which is arranged on the inner wall of the tank body and extends upward in a spiral shape along the rotation direction of the stirring blade.
[0013] By arranging a guide plate on the inner wall of the tank, when the scraping blade and the stirring blade rotate, the solid material at the bottom of the hot dissolving chamber can rise along the guide plate, and the potassium chloride in the sylvite can be fully dissolved into the liquid phase.
[0014] Preferably, a spoiler is further included, which is vertically arranged on the inner side wall of the tank body and located above the guide plate. The spoiler can make the solid material and slurry in the hot dissolving chamber evenly mixed, so that the potassium chloride in the sylvite is fully dissolved into the liquid phase.
[0015] Preferably, the angle between the scraping blade and the bottom surface of the hot dissolving chamber is 10° to 15°. Setting the angle between the scraping blade and the bottom surface of the hot dissolving chamber to 10° to 15° can better stir the solid material on the bottom surface of the hot dissolving chamber, so that the solid material rises with the slurry, preventing the material from accumulating at the bottom of the hot dissolving chamber, and allowing the potassium chloride in the sylvite to be fully dissolved into the liquid phase.
[0016] Preferably, a bracket is provided at the bottom of the tank body, and the bracket includes a plurality of support legs evenly distributed along the bottom of the tank body, the support legs are vertically arranged, and the upper ends are fixedly connected to the bottom of the tank body. The tank body can be supported by the bracket to keep the tank body stable.
[0017] Preferably, the tank body further comprises a discharge port, which is arranged at the bottom of the tank body. The residual materials in the hot dissolving cavity can be discharged through the discharge port at the bottom of the tank body when the equipment is overhauled or cleaned. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 .Schematic diagram of the external structure of the hot melt equipment;
[0019] Figure 2 . Schematic diagram of the internal structure of the tank;
[0020] Figure 3 . Figure 2 The enlarged schematic diagram at A in the middle;
[0021] Figure 4 . Figure 2 Schematic diagram of the BB section.
[0022] In the figure, 1. tank body, 11. hot dissolving chamber, 12. interlayer, 121. heating inlet, 122. heating outlet, 13. steam inlet, 14. feeding port, 15. steam outlet, 16. liquid feeding port, 17. overflow port, 18. discharge port, 2. stirring device, 21. stirring motor, 22. stirring rod, 23. stirring blade, 24. scraping blade, 3. heating device, 31. steam distribution pipe, 32. steam nozzle, 33. connecting pipe, 4. bracket, 41. supporting leg, 5. guide plate, 6. spoiler. DETAILED DESCRIPTION
[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0024] like Figure 1 and Figure 2 As shown, the hot melt device comprises a tank body 1, a stirring device 2 and a heating device 3. The top of the tank body 1 is provided with a steam inlet 13, a feeding port 14, a steam outlet 15 and a liquid feeding port 16, an overflow port 17 is provided at the upper part of the side wall of the tank body 1, and a hot melt cavity 11 is formed inside.
[0025] The bottom of the tank body 1 is provided with a discharge port 18. The discharge port 18 at the bottom of the tank body 1 can be used to discharge the residual materials in the hot dissolving chamber 11 when the equipment is repaired or cleaned.
[0026] A bracket 4 is provided at the bottom of the tank body 1, and the bracket 4 includes a plurality of support legs 41 evenly distributed along the bottom of the tank body 1, and the support legs 41 are vertically arranged, and the upper ends are fixedly connected to the bottom of the tank body 1. The bracket 4 can support the tank body 1 to keep the tank body 1 stable.
[0027] The tank body 1 is provided with an interlayer 12, and the outer wall of the tank body 1 is provided with a heating inlet 121 and a heating outlet 122 communicating with the interlayer 12. Steam or liquid heating medium can be introduced into the interlayer 12 through the heating inlet 121 and the heating outlet 122, so as to heat the slurry in the hot dissolving chamber 11, improve the heating efficiency of the slurry in the hot dissolving chamber 11, make the slurry heated evenly, and reduce the amount of steam in the hot dissolving chamber 11.
[0028] The bottom surface of the hot dissolving chamber 11 is a plane, and a guide plate 5 and a spoiler 6 are arranged in the hot dissolving chamber 11. The guide plate 5 is arranged on the inner wall of the tank body 1, and the guide plate 5 extends upward in a spiral shape along the rotation direction of the stirring blade 23. By arranging the guide plate 5 on the inner wall of the tank body 1, when the scraping blade 24 and the stirring blade 23 rotate, the solid material at the bottom of the hot dissolving chamber 11 can be raised along the guide plate 5, so that the potassium chloride in the sylvite is fully dissolved into the liquid phase.
[0029] The spoiler 6 is vertically arranged on the inner side wall of the tank body 1, and is located above the guide plate 5. The spoiler 6 can make the solid material and the slurry in the hot dissolving chamber 11 evenly mixed, so that the potassium chloride in the sylvite is fully dissolved in the liquid phase.
[0030] The stirring device 2 includes a stirring motor 21, a stirring rod 22 and a scraping blade 24. The stirring motor 21 is arranged on the top of the tank body 1. The stirring rod 22 is arranged vertically, the upper end of which is fixedly connected to the rotating shaft of the stirring motor 21, and the lower end of which passes through the tank body 1 and extends to the bottom of the hot dissolving chamber 11. The stirring rod 22 is provided with a stirring blade 23.
[0031] like Figure 2 and Figure 3As shown, the scraping blade 24 is tilted at the bottom of the stirring rod 22, one end of which is fixedly connected to the stirring rod 22, and the other end of which extends radially along the stirring rod 22. The tilting direction of the scraping blade 24 is set so that the side of the scraping blade 24 facing the rotation direction of the scraping blade 24 is in contact with the bottom surface of the hot melt chamber 11, and the side of the scraping blade 24 away from the rotation direction of the scraping blade 24 is spaced from the bottom surface of the hot melt chamber 11. The angle between the scraping blade 24 and the bottom surface of the hot melt chamber 11 is 10° to 15°.
[0032] By arranging a scraping blade 24 at the bottom of the stirring rod 22, the scraping blade 24 is used to sweep the solid material at the bottom of the hot dissolving chamber 11, thereby preventing the solid material from accumulating at the bottom of the hot dissolving chamber 11, making the solid material and the slurry evenly mixed, and promoting the potassium chloride in the sylvite to be fully dissolved in the liquid phase. The scraping blade 24 is arranged at an angle of 10° to 15° with the bottom surface of the hot dissolving chamber 11, so that the solid material on the bottom surface of the hot dissolving chamber 11 can be better stirred, so that the solid material rises with the slurry, preventing the material from accumulating at the bottom of the hot dissolving chamber 11, and making the potassium chloride in the sylvite fully dissolved in the liquid phase.
[0033] like Figure 2 and Figure 4 As shown, the heating device includes a steam distribution pipe 31 and a connecting pipe 33. The steam distribution pipe 31 is annular and horizontally arranged at the bottom of the hot melting chamber 11, above the scraping blade 24, and is connected to the steam inlet 13 through the connecting pipe 33. A plurality of evenly distributed steam nozzles 32 are arranged on the steam distribution pipe 31.
[0034] There are multiple steam distribution pipes 31, and the multiple steam distribution pipes 31 have different diameters. The multiple steam distribution pipes 31 are arranged on the same plane, coaxially arranged, and the multiple steam distribution pipes 31 are interconnected. By arranging multiple steam distribution pipes 31 in the hot dissolving chamber 11, the steam can be evenly distributed in the hot dissolving chamber 11, so that the steam heats the slurry in the hot dissolving chamber 11 evenly, improves the heating efficiency, reduces the steam loss, and improves the dissolution efficiency of potassium chloride.
[0035] When the utility model is used, sylvite material is added into the hot dissolving chamber 11 from the feeding port 14, and the dissolving liquid is added into the hot dissolving chamber 11 from the liquid feeding port 16. Steam enters the steam distribution pipe 31 from the steam inlet 13, and is evenly dispersed into the hot dissolving chamber 11 by the steam nozzle 32 on the steam distribution pipe 31. After the steam heats the slurry, it is discharged from the steam outlet 15. The stirring motor 21 is turned on, and the scraping blade 24 and the stirring blade 23 are driven to rotate by the stirring rod 22. The solid material at the bottom of the hot dissolving chamber 11 is swept by the scraping blade 24, so that the solid material and the slurry are evenly mixed. The slurry after the potassium chloride in the sylvite is dissolved is discharged from the overflow port 17.
[0036] The utility model sets the bottom surface of the hot dissolving chamber 11 as a plane, and sets a scraping blade 24 at the bottom of the stirring rod 22. The scraping blade 24 is used to sweep the solid material at the bottom of the hot dissolving chamber 11, so as to prevent the solid material from accumulating at the bottom of the hot dissolving chamber 11, so that the solid material is mixed with the slurry evenly, and the potassium chloride in the sylvite is promoted to be fully dissolved into the liquid phase. By setting a steam distribution pipe 31 in the hot dissolving chamber 11, the steam can be evenly distributed in the hot dissolving chamber 11, so that the steam heats the slurry in the hot dissolving chamber 11 evenly, thereby improving the heating efficiency, reducing the steam loss, and improving the dissolution efficiency of potassium chloride.
[0037] An interlayer 12 is arranged on the tank body 1, and steam or liquid heating medium can be introduced into the interlayer 12 through a heating inlet 121 and a heating outlet 122 to heat the hot melt chamber 11, thereby improving the heating efficiency of the slurry in the hot melt chamber 11, heating the slurry evenly, and reducing the amount of steam in the hot melt chamber 11.
[0038] By arranging the guide plate 5 on the inner wall of the tank body 1, when the scraping blade 24 and the stirring blade 23 rotate, the solid materials at the bottom of the hot dissolving chamber 11 can be raised along the guide plate 5, so that the potassium chloride in the sylvite is fully dissolved in the liquid phase. The spoiler 6 can make the solid materials and the slurry in the hot dissolving chamber 11 uniformly mixed, so that the potassium chloride in the sylvite is fully dissolved in the liquid phase.
[0039] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.
Claims
1. Hot melt equipment, characterized in that: It comprises a tank body (1), a stirring device (2) and a heating device (3), The top of the tank body (1) is provided with a steam inlet (13), a feeding port (14), a steam outlet (15) and a liquid feeding port (16); the upper part of the side wall of the tank body (1) is provided with an overflow port (17); a hot melt cavity (11) is formed inside; and the bottom surface of the hot melt cavity (11) is a plane; The stirring device (2) comprises a stirring motor (21), a stirring rod (22) and a scraping blade (24); the stirring motor (21) is arranged on the top of the tank body (1); The stirring rod (22) is arranged vertically, the upper end of which is fixedly connected to the rotating shaft of the stirring motor (21), and the lower end of which passes through the tank body (1) and extends to the bottom of the hot dissolving chamber (11). The stirring rod (22) is provided with a stirring blade (23); The scraping blade (24) is obliquely arranged at the bottom of the stirring rod (22), one end of which is fixedly connected to the stirring rod (22) and the other end of which extends along the radial direction of the stirring rod (22); The inclination direction of the scraping blade (24) is set so that the side of the scraping blade (24) facing the rotation direction of the scraping blade (24) is in contact with the bottom surface of the hot melt chamber (11), and the side of the scraping blade (24) away from the rotation direction of the scraping blade (24) maintains a distance from the bottom surface of the hot melt chamber (11); The heating device (3) comprises a steam distribution pipe (31), The steam distribution pipe (31) is annular and horizontally arranged at the bottom of the hot melting chamber (11), located above the scraping blade (24), and connected to the steam inlet (13) through a connecting pipe (33). The steam distribution pipe (31) is provided with a plurality of evenly distributed steam nozzles (32).
2. The hot melt equipment according to claim 1, characterized in that: The steam distribution pipe (31) is provided with a plurality of The steam distribution pipe (31) is in the shape of a ring; The diameters of the plurality of steam distribution pipes (31) are different, and the plurality of steam distribution pipes (31) are interconnected.
3. The hot melt equipment according to claim 2, characterized in that: The tank body (1) is provided with an interlayer (12), and the outer side wall of the tank body (1) is provided with a heating inlet (121) and a heating outlet (122) communicating with the interlayer (12).
4. The hot melt equipment according to claim 3, characterized in that: It also includes a guide plate (5), The guide plate (5) is arranged on the inner side wall of the tank body (1), and the guide plate (5) extends upward in a spiral shape along the rotation direction of the stirring blade (23).
5. The hot melt equipment according to claim 4, characterized in that: Also includes a spoiler (6), The spoiler (6) is vertically arranged on the inner wall of the tank body (1) and is located above the guide plate (5).
6. The hot melt equipment according to claim 5, characterized in that: The included angle between the scraping blade (24) and the bottom surface of the hot melting chamber (11) is 10° to 15°.
7. The hot melt equipment according to claim 6, characterized in that: A bracket (4) is provided at the bottom of the tank body (1). The support (4) comprises a plurality of support legs (41) evenly distributed along the bottom of the tank body (1); The supporting legs (41) are arranged vertically, and the upper ends are fixedly connected to the bottom of the tank body (1).
8. The hot melt equipment according to any one of claims 1 to 7, characterized in that: Also includes a discharge port (18), The discharge port (18) is arranged at the bottom of the tank body (1).