Crushing equipment for sodium tripolyphosphate production

Abstract

The utility model relates to the technical field of sodium tripolyphosphate production, and discloses crushing equipment for sodium tripolyphosphate production, which comprises a base and a connecting column fixedly arranged at the upper end of one side of the base, and the upper end of the connecting column is connected with a crushing box. Crushed sodium tripolyphosphate falls into the upper end of a screening frame from a crushing box, then a third motor is started to drive an eccentric wheel to rotate, and along with continuous beating of the eccentric wheel, the screening frame drives a sliding sleeve to indirectly compress or stretch a spring through an adjusting rod. The screening frame vibrates to screen sodium tripolyphosphate of different sizes, under continuous vibration of the screening frame, sodium tripolyphosphate powder attached in screening holes of the screening frame is shaken off and falls into the first collecting frame to be collected, and therefore resource waste caused by the fact that the sodium tripolyphosphate powder is attached in the screening holes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium tripolyphosphate production, in particular to a crushing device used in sodium tripolyphosphate production. Background Art

[0002] Sodium tripolyphosphate, chemical structure: This product is a type of amorphous water-soluble linear polyphosphate, commonly used in food as a moisture retainer, quality improver, pH regulator and metal chelating agent.

[0003] Prior art, such as publication number CN208115932U, discloses a crushing device for sodium tripolyphosphate production, which relates to the technical field of sodium tripolyphosphate. A crusher for sodium tripolyphosphate production comprises a crushing box, the top of which is fixedly connected to a feed pipe, the top of the inner cavity of the crushing box is fixedly connected to a conduction box, the interior of the conduction box is movably connected to a first crusher, the middle of the inner cavity of the crushing box is movably connected to a second crusher, the side of the inner cavity of the crushing box is located below the second crusher and is fixedly connected to a screen, the side of the crushing box is fixedly connected to a conduction pipe, the bottom of the conduction pipe is fixedly connected to a collection box, and the interior of the collection box is movably connected to a drawer. The utility model drives the second crusher to perform secondary crushing of sodium tripolyphosphate by a first crusher and a second motor, screens particles of different sizes, and introduces the sodium tripolyphosphate collected in the collection box into the feed pipe for cyclic crushing by pulling the drawer, thereby increasing the crushing efficiency of the crusher for sodium tripolyphosphate.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: since sodium tripolyphosphate appears as white powdery crystals after crushing, the device screens the crushed sodium tripolyphosphate particles through a screen, but the screen is fixed to the inner wall of the crushing box, which may cause some powdered sodium tripolyphosphate to adhere to the sieve holes of the screen and be unable to fall, thereby causing some sodium tripolyphosphate to be unable to be recovered, resulting in a waste of resources. Utility Model Content

[0005] In view of the fact that the above-mentioned device screens the crushed sodium tripolyphosphate particles through a screen, but the screen is fixed to the inner wall of the crushing box, which may cause some powdered sodium tripolyphosphate to adhere to the sieve holes of the screen and be unable to fall, thereby causing some sodium tripolyphosphate to be unable to be recovered, resulting in a waste of resources, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a crushing device for the production of sodium tripolyphosphate, the purpose of which is to vibrate the screening frame after the crushing is completed, so as to shake off part of the sodium tripolyphosphate powder attached to the sieve holes of the screening frame, thereby facilitating the collection of the sodium tripolyphosphate powder and avoiding waste of resources.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a crushing device for sodium tripolyphosphate production, comprising a base and a connecting column fixedly arranged at the upper end of one side of the base, the upper end of the connecting column being connected to a crushing box, the upper end of the inner wall of the crushing box being provided with a pre-crushing assembly, the lower end of the inner wall of the crushing box being provided with a second motor, the lower end of the crushing box being provided with a screening assembly, and a support rod being provided at one end of the base away from the connecting column;

[0008] The screening assembly includes a connecting frame arranged on one side of the upper end surface of the base, a sliding column is provided at the middle of the connecting frame, a sliding sleeve is provided on the outer wall of the sliding column, a spring is provided at the lower end of the sliding sleeve, and the upper end of the sliding sleeve is connected to the screening frame through an adjusting rod.

[0009] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, the sliding sleeve is movably mounted on the outer wall of the sliding column, the sliding column is located at the lower end of the sliding sleeve and is provided with a spring, the upper and lower ends of the spring are respectively fixedly connected to the sliding sleeve and the connecting frame, the upper end of the sliding sleeve is hinged to the adjusting rod, the upper end of the adjusting rod is hinged to the screening frame, the screening frame is inclined from top to bottom toward one end of the support rod, and the two ends of the outer wall of the screening frame are rotatably connected to the support rod.

[0010] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, a baffle is inserted into the end of the screening frame away from the adjusting rod, and two sets of mutually symmetrical fixing blocks are provided at both ends of the baffle. Bolts are threadedly inserted into the upper ends of the fixing blocks, and the lower ends of the bolts are movable through the screening frame. The inner wall of the screening frame is provided with a socket that cooperates with the bolts.

[0011] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, wherein: a straight rod is fixedly connected to the outer wall of one side of the connecting column, a third motor is fixedly provided at one end of the straight rod, an eccentric wheel is connected to the output end of the third motor, and the upper end of the eccentric wheel is in contact with the lower end surface of one side of the screening frame.

[0012] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, the upper end surface of the base is provided with a first collecting frame, the first collecting frame is movably inserted between the inner walls of the support rods, and a second collecting frame is movably inserted into the inner wall of one end of the first collecting frame.

[0013] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, the pre-crushing assembly includes a connecting box fixedly arranged at both ends of the outer wall of the crushing box, the outer wall of the connecting box is fixedly connected to a first motor, the output end of the first motor is connected to a toothless gear, and the toothless gear and the inner wall of the connecting box are rotatably connected, the inner wall of the connecting box is located on one side of the toothless gear and is rotatably connected to a driven gear, a part of the toothless gear and the driven gear are meshed with each other, a connecting rod is fixedly arranged on the outer wall of the driven gear, and grooves matching the connecting rod are provided at both ends of the outer wall of the crushing box.

[0014] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, the pre-crushing component also includes a pressure plate arranged at the lower end of the connecting rod, and a receiving plate is provided at the lower end of the pressure plate. Both sides of one end of the receiving plate are rotatably connected to the inner wall of the crushing box, the lower end surface of the pressure plate and the upper end surface of the receiving plate are in contact with each other, and a cylinder is hingedly provided at the lower end of the receiving plate, and the lower end of the cylinder is hinged to the inner wall of the crushing box.

[0015] As a preferred solution of the crushing equipment for sodium tripolyphosphate production described in the utility model, wherein: the inner wall of the lower end of the crushing box is rotatably connected to two groups of mutually symmetrical crushing rollers, one end of one group of crushing rollers is connected to a second motor, and the outer walls of the ends of the two groups of crushing rollers away from the second motor are provided with a transmission assembly.

[0016] Beneficial effects of the utility model:

[0017] 1. In the present invention, the crushed sodium tripolyphosphate falls from the crushing box to the upper end of the screening frame, and then the third motor is started to drive the eccentric wheel to rotate. As the eccentric wheel is continuously struck, the screening frame drives the sliding sleeve through the adjusting rod to indirectly compress or stretch the spring. Under the action of the spring force, the lower end of the screening frame rotates up and down indirectly along the support rod, thereby generating vibrations in the screening frame to screen sodium tripolyphosphate of different sizes. Under the continuous vibration of the screening frame, the sodium tripolyphosphate powder attached to the sieve holes of the screening frame is shaken off and falls into the first collecting frame for collection, thereby avoiding the waste of resources caused by the sodium tripolyphosphate powder adhering to the sieve holes.

[0018] 2. In this utility model, driven by a motor, the pressure plate periodically hammers the sodium tripolyphosphate on the upper end of the receiving plate to preliminarily crush the large pieces of material into smaller particles. Through pre-crushing, the sodium tripolyphosphate can reach a certain particle size requirement before entering the main crushing roller, thereby reducing the workload of the main crusher and improving the efficiency of the entire crushing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the crushing equipment used in the production of sodium tripolyphosphate according to the present invention.

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the crushing equipment used in the production of sodium tripolyphosphate according to the present invention.

[0022] Figure 3 The utility model is a partial cross-sectional schematic diagram of the three-dimensional structure of the crushing equipment used in the production of sodium tripolyphosphate.

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the pre-crushing component used in the production of sodium tripolyphosphate according to the utility model.

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the crushing roller of the crushing equipment used in the production of sodium tripolyphosphate in the utility model.

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the screening component of the crushing equipment used for the production of sodium tripolyphosphate in the utility model.

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the eccentric wheel and the third motor of the crushing equipment for sodium tripolyphosphate production in the utility model.

[0027] Description of reference numerals:

[0028] 1. Base; 2. Connecting column; 3. Crushing box; 4. Pre-crushing assembly; 41. Connecting box; 42. First motor; 43. Toothless gear; 44. Driven gear; 45. Connecting rod; 46. Pressure plate; 47. Adapter plate; 48. Cylinder; 5. Crushing roller; 6. Second motor; 7. Transmission assembly; 8. Screening assembly; 81. Connecting frame; 82. Sliding column; 83. Sliding sleeve; 84. Spring; 85. Adjusting rod; 86. Screening frame; 87. Baffle; 88. Fixed block; 89. Bolt; 9. Support rod; 10. First collection frame; 11. Second collection frame; 12. Straight rod; 13. Third motor; 14. Eccentric wheel. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Example 1

[0032] Reference Figure 1-7 , which is the first embodiment of the present utility model, provides a crushing device for sodium tripolyphosphate production, including a base 1 and a connecting column 2 fixedly arranged at the upper end of one side of the base 1, the upper end of the connecting column 2 is connected to a crushing box 3, the upper end of the inner wall of the crushing box 3 is provided with a pre-crushing component 4, the lower end of the inner wall of the crushing box 3 is provided with a second motor 6, and the lower end of the crushing box 3 is provided with a screening component 8. A support rod 9 is provided at the end of the base 1 away from the connecting column 2;

[0033] The screening assembly 8 includes a connecting frame 81 arranged on one side of the upper end surface of the base 1, a sliding column 82 is provided at the middle end of the connecting frame 81, a sliding sleeve 83 is provided on the outer wall of the sliding column 82, a spring 84 is provided at the lower end of the sliding sleeve 83, and the upper end of the sliding sleeve 83 is connected to the screening frame 86 through an adjusting rod 85.

[0034] The sliding sleeve 83 is movably mounted on the outer wall of the sliding column 82. The sliding column 82 is located at the lower end of the sliding sleeve 83 and is provided with a spring 84. The upper and lower ends of the spring 84 are fixedly connected to the sliding sleeve 83 and the connecting frame 81 respectively. The adjusting rod 85 at the upper end of the sliding sleeve 83 is hinged, and the upper end of the adjusting rod 85 is hinged to the screening frame 86. The screening frame 86 is tilted from top to bottom toward one end of the support rod 9, and the two ends of the outer wall of the screening frame 86 are rotatably connected to the support rod 9.

[0035] A baffle 87 is inserted at one end of the screening frame 86 away from the adjusting rod 85, and two sets of symmetrical fixing blocks 88 are set at both ends of the baffle 87. Bolts 89 are threadedly inserted at the upper ends of the fixing blocks 88, and the lower ends of the bolts 89 can move through the screening frame 86. The inner wall of the screening frame 86 is provided with a socket that matches the bolts 89.

[0036] A straight rod 12 is fixedly connected to the outer wall of one side of the connecting column 2, and a third motor 13 is fixedly provided at one end of the straight rod 12. The output end of the third motor 13 is connected to an eccentric wheel 14, and the upper end of the eccentric wheel 14 abuts against the lower end surface of one side of the screening frame 86.

[0037] A first collecting frame 10 is provided on the upper end surface of the base 1 , and the first collecting frame 10 is movably inserted between the inner walls of the support rods 9 . A second collecting frame 11 is movably inserted into the inner wall of one end of the first collecting frame 10 .

[0038] The crushed sodium tripolyphosphate falls from the crushing box 3 to the upper end of the screening frame 86, and then the third motor 13 is started to drive the eccentric wheel 14 to rotate. As the eccentric wheel 14 continues to hit and under the action of the gravity of the sodium tripolyphosphate, the screening frame 86 drives the sliding sleeve 83 through the adjusting rod 85 to indirectly compress or stretch the spring 84. Under the action of the elastic force of the spring 84, the lower end of the screening frame 86 rotates up and down indirectly along the support rod 9, so that the screening frame 86 vibrates, screening the sodium tripolyphosphate of different sizes. Smaller sodium tripolyphosphate falls through the screening frame 86 into the first collecting frame 10 for collection, and larger particles of sodium tripolyphosphate slide down along the screening frame 86 and accumulate on the baffle 87. 6, the sodium tripolyphosphate powder attached to the sieve holes of the screening frame 86 is shaken off and falls into the first collecting frame 10 for collection, thereby avoiding the sodium tripolyphosphate powder adhering to the sieve holes and causing waste of resources. The larger sodium tripolyphosphate particles accumulate at the baffle 87 and cannot fall from the upper end of the screening frame 86. Then, the bolt 89 is rotated, the bolt 89 is removed from the fixing block 88, and the baffle 87 is disassembled. The larger sodium tripolyphosphate particles move downward along the screening frame 86 and fall into the second collecting frame 11 for collection. The larger sodium tripolyphosphate particles in the second collecting frame 11 are poured into the crushing box 3 again for crushing, so that the sodium tripolyphosphate can be crushed into a suitable powder size for easy use.

[0039] Example 2

[0040] Reference Figure 1-5 , which is the second embodiment of the present utility model. This embodiment is different from the first embodiment in that: the pre-crushing assembly 4 includes a connecting box 41 fixedly arranged at both ends of the outer wall of the crushing box 3, the outer wall of the connecting box 41 is fixedly connected to a first motor 42, the output end of the first motor 42 is connected to a toothless gear 43, and the toothless gear 43 is rotatably connected to the inner wall of the connecting box 41, and the inner wall of the connecting box 41 is rotatably connected to a driven gear 44 located on one side of the toothless gear 43, a part of the toothless gear 43 is engaged with the driven gear 44, and a connecting rod 45 is fixedly arranged on the outer wall of the driven gear 44, and grooves matching the connecting rod 45 are opened at both ends of the outer wall of the crushing box 3.

[0041] The pre-crushing assembly 4 also includes a pressure plate 46 arranged at the lower end of the connecting rod 45, and a receiving plate 47 is provided at the lower end of the pressure plate 46. The two sides of one end of the receiving plate 47 are rotatably connected to the inner wall of the crushing box 3. The lower end surface of the pressure plate 46 and the upper end surface of the receiving plate 47 are in contact with each other. The lower end of the receiving plate 47 is hingedly provided with a cylinder 48, and the lower end of the cylinder 48 is hinged to the inner wall of the crushing box 3.

[0042] Two sets of symmetrical crushing rollers 5 are rotatably connected to the inner wall of the lower end of the crushing box 3. One end of one set of crushing rollers 5 is connected to a second motor 6. The outer walls of the two sets of crushing rollers 5 away from the second motor 6 are provided with a transmission assembly 7 for transmission.

[0043] The sodium tripolyphosphate to be crushed is put into the crushing box 3, and the sodium tripolyphosphate falls to the upper end of the two groups of receiving plates 47. Then the first motor 42 is started to drive the toothless gear 43 to rotate. When the gear part of the toothless gear 43 contacts the driven gear 44, the toothless gear 43 drives the driven gear 44 to rotate, so that the connecting rod 45 rotates upward along the axis of the driven gear 44 by a certain angle. When the gear part of the toothless gear 43 leaves the driven gear 44, the connecting rod 45 rotates downward along the axis of the driven gear 44 under the action of the gravity of the pressure plate 46, so that the pressure plate 46 hammers the sodium tripolyphosphate placed on the upper end of the receiving plate 47. Under the continuous rotation of the first motor 42, the pressure plate 46 periodically hammers the sodium tripolyphosphate on the upper end of the receiving plate 47, and the sodium tripolyphosphate is produced. During the production process, large lumps may be formed. Direct crushing of these lumps may increase the load on the crushing roller 5 and reduce the crushing efficiency. Pre-crushing is performed through the pre-crushing component 4, and the large lumps of material are initially crushed into smaller particles, which can reduce the difficulty of subsequent crushing and improve the overall crushing efficiency. After the pre-crushing is completed, the cylinder 48 is started to contract, and the two groups of receiving plates 47 rotate downward along the inner wall of the crushing box 3. The pre-crushed sodium tripolyphosphate falls onto the crushing roller 5, and the second motor 6 is started to drive the two groups of crushing rollers 5 to rotate through the transmission component 7 to crush the sodium tripolyphosphate. Through the above-mentioned pre-crushing, the sodium tripolyphosphate can reach a certain particle size requirement before entering the main crushing roller 5, thereby reducing the workload of the main crusher and improving the efficiency of the entire crushing process.

[0044] The remaining structures are the same as those of Example 1.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A crushing device for sodium tripolyphosphate production, comprising a base (1) and a connecting column (2) fixedly arranged on the upper end of one side of the base (1), characterized in that: The upper end of the connecting column (2) is connected to a crushing box (3), the upper end of the inner wall of the crushing box (3) is provided with a pre-crushing assembly (4), the lower end of the inner wall of the crushing box (3) is provided with a second motor (6), the lower end of the crushing box (3) is provided with a screening assembly (8), and the end of the base (1) away from the connecting column (2) is provided with a support rod (9); The screening assembly (8) comprises a connecting frame (81) arranged on one side of the upper end surface of the base (1), a sliding column (82) is provided at the middle end of the connecting frame (81), a sliding sleeve (83) is provided on the outer wall of the sliding column (82), a spring (84) is provided at the lower end of the sliding sleeve (83), and the upper end of the sliding sleeve (83) is connected to the screening frame (86) via an adjusting rod (85).

2. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: The sliding sleeve (83) is movably mounted on the outer wall of the sliding column (82). The sliding column (82) is located at the lower end of the sliding sleeve (83) and is provided with a spring (84). The upper and lower ends of the spring (84) are respectively fixedly connected to the sliding sleeve (83) and the connecting frame (81). The upper end of the sliding sleeve (83) is hinged to the adjusting rod (85). The upper end of the adjusting rod (85) is hinged to the screening frame (86). The screening frame (86) is tilted from top to bottom toward one end of the support rod (9). The outer wall ends of the screening frame (86) are rotatably connected to the support rod (9).

3. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: A baffle (87) is inserted into one end of the screening frame (86) away from the adjusting rod (85), and two sets of mutually symmetrical fixing blocks (88) are provided at both ends of the baffle (87). Bolts (89) are threadedly inserted into the upper ends of the fixing blocks (88), and the lower ends of the bolts (89) are movable through the screening frame (86). A socket that matches the bolts (89) is opened on the inner wall of the screening frame (86).

4. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: A straight rod (12) is fixedly connected to the outer wall of one side of the connecting column (2), a third motor (13) is fixedly provided at one end of the straight rod (12), an eccentric wheel (14) is connected to the output end of the third motor (13), and the upper end of the eccentric wheel (14) is in contact with the lower end surface of one side of the screening frame (86).

5. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: A first collecting frame (10) is provided on the upper end surface of the base (1), and the first collecting frame (10) is movably inserted between the inner walls of the support rods (9). A second collecting frame (11) is movably inserted into the inner wall of one end of the first collecting frame (10).

6. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: The pre-crushing assembly (4) comprises a connecting box (41) fixedly arranged at both ends of the outer wall of the crushing box (3); the outer wall of the connecting box (41) is fixedly connected to a first motor (42); the output end of the first motor (42) is connected to a toothless gear (43); the toothless gear (43) and the inner wall of the connecting box (41) are rotatably connected; the inner wall of the connecting box (41) is rotatably connected to a driven gear (44) located on one side of the toothless gear (43); a portion of the toothless gear (43) and the driven gear (44) are meshed with each other; a connecting rod (45) is fixedly arranged on the outer wall of the driven gear (44); and grooves matching the connecting rod (45) are provided at both ends of the outer wall of the crushing box (3).

7. The crushing equipment for sodium tripolyphosphate production according to claim 6, characterized in that: The pre-crushing assembly (4) further comprises a pressure plate (46) arranged at the lower end of the connecting rod (45), a receiving plate (47) being provided at the lower end of the pressure plate (46), both sides of one end of the receiving plate (47) being rotatably connected to the inner wall of the crushing box (3), the lower end surface of the pressure plate (46) and the upper end surface of the receiving plate (47) being in contact with each other, a cylinder (48) being hingedly provided at the lower end of the receiving plate (47), and the lower end of the cylinder (48) being hingedly connected to the inner wall of the crushing box (3).

8. The crushing equipment for sodium tripolyphosphate production according to claim 1, characterized in that: Two sets of symmetrical crushing rollers (5) are rotatably connected to the inner wall of the lower end of the crushing box (3), one end of one set of crushing rollers (5) is connected to a second motor (6), and a transmission assembly (7) is provided on the outer wall of one end of the two sets of crushing rollers (5) away from the second motor (6).

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