Sodium thiosulfate crystal size control device

Abstract

The invention provides a sodium thiosulfate crystal grain size control device which comprises a shell, a stirring assembly, a lifting frame and a driving assembly for driving the lifting frame to ascend and descend in a reciprocating mode are arranged in the shell, an opening is further formed in one side of the shell, a collecting assembly is arranged at the opening, and a mounting frame is hinged to the lifting frame. At least two sets of rolling shafts are arranged on the installation frame at intervals, the two sets of rolling shafts are sleeved with a screening belt, a control mechanism connected with the installation frame is arranged in the shell, the control mechanism controls the installation frame to be in a horizontal state when the lifting frame ascends and drives the installation frame to overturn upwards when the lifting frame descends, and a transmission assembly connected with the rolling shafts is arranged on the shell. The rolling shaft is driven to rotate through the transmission assembly. The device can continuously and automatically collect crystals reaching a certain particle size in the process that sodium thiosulfate is easy to crystallize, the crystals do not need to be repeatedly guided out manually, the labor intensity of workers is effectively reduced, and the production efficiency of the sodium thiosulfate crystals is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sodium thiosulfate production, and in particular to a sodium thiosulfate crystal particle size control device. Background Art

[0002] Sodium thiosulfate is a salt compound that is stable at room temperature and decomposes at high temperatures to produce gases such as sulfur dioxide and hydrogen sulfide. Sodium thiosulfate is widely used and can be used as an antidote for cyanide poisoning. Because it can form less toxic thiocyanate with cyanide, it plays an important role in first aid. It can be used as a dechlorinating agent in the printing and dyeing process to help remove residual hypochlorite ions in the bleaching process to prevent environmental pollution. It can also adjust soil pH, improve soil quality, promote crop growth, and improve the efficacy of crop medicines.

[0003] Most sodium thiosulfate production processes use a crystallization process of aqueous solution. For example, a Chinese patent with a publication number of CN207187164U provides a sodium thiosulfate crystal size control device, which controls the extraction of sodium thiosulfate crystal particles of different sizes through a first screen and a second screen. Sodium thiosulfate crystals with larger particles will be blocked in the crystallization cylinder and continue to be stirred, so that the particle size of the extracted sodium thiosulfate crystals is relatively uniform.

[0004] However, the existing sodium thiosulfate crystal particle size control device is not convenient for automatically collecting the crystallized sodium thiosulfate. In order to ensure the consistency of the crystal particle size, it is necessary for the staff to manually export it during the crystallization process, thereby increasing the labor intensity of the staff and reducing production efficiency. Therefore, in view of this, a sodium thiosulfate crystal particle size control device is proposed to solve the above technical problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention proposes a sodium thiosulfate crystal particle size control device to solve the technical problem that the existing sodium thiosulfate crystal particle size control device proposed in the above background technology is not convenient for automatically collecting the crystallized sodium thiosulfate, and in order to ensure the consistency of the crystal particle size, it is necessary for the staff to manually export it continuously during the crystallization process, thereby increasing the labor intensity of the staff and reducing the production efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution, a sodium thiosulfate crystal particle size control device, comprising:

[0007] A shell, wherein a stirring assembly, a lifting frame, and a driving assembly for driving the lifting frame to lift and lower are arranged in the shell, and an opening is also opened on one side of the shell, and a collecting assembly is arranged at the opening;

[0008] A mounting frame, hinged on the lifting frame, at least two groups of rollers are arranged at intervals on the mounting frame, and screening belts are sleeved on the two groups of rollers;

[0009] a control mechanism, disposed in the housing and connected to the mounting frame, to control the mounting frame to be in a horizontal state when the lifting frame is raised, and to drive the mounting frame to flip upward when the lifting frame is lowered; and

[0010] A transmission assembly is arranged on the housing and connected to the roller to drive the roller to rotate when the screening belt moves to the collecting area of ​​the collecting assembly.

[0011] In a preferred embodiment, the stirring assembly includes:

[0012] A driving motor, fixedly arranged on the top of the housing;

[0013] A rotating shaft, arranged at the output shaft of the driving motor; and

[0014] The stirring wheel is arranged at the bottom of the rotating shaft.

[0015] In a preferred embodiment, the mounting frame is provided with a groove for the rotating shaft to pass through.

[0016] In a preferred embodiment, the drive assembly comprises:

[0017] A reciprocating screw rod is rotatably arranged in the housing along its axis, and the lifting frame is arranged on and cooperates with the reciprocating screw rod;

[0018] A first synchronous wheel, disposed on the rotating shaft; and

[0019] The second synchronous wheel is arranged on the reciprocating screw rod and is connected with the first synchronous wheel through a synchronous belt.

[0020] In a preferred embodiment, the second synchronous wheel is rotatably arranged on the housing along its axis, and a connecting block is arranged at the bottom thereof. The connecting block is liftably and slidably clamped on the end of the reciprocating screw rod.

[0021] In a preferred embodiment, the collection assembly includes:

[0022] A collecting frame is detachably arranged at the opening;

[0023] A receiving plate is hinged on one side of the collecting frame and extends outward, and a torsion spring is provided at its hinge point, and a receiving sheet made of a flexible material is provided at the end of the receiving plate; and

[0024] A connecting seat is arranged on the collecting frame, a mounting post is arranged on the side wall of the shell, and the connecting seat can be slidably sleeved on the mounting post.

[0025] In a preferred embodiment, the transmission assembly includes:

[0026] A spur rack, disposed on the inner wall of the housing, with its bottom higher than the height of the receiving plate; and

[0027] A gear is arranged on one of the groups of rollers and can mesh with the spur rack.

[0028] In a preferred embodiment, a supporting block is provided on the lifting frame, and the supporting block abuts against the bottom surface of the mounting frame.

[0029] In a preferred embodiment, the control mechanism includes:

[0030] A ratchet bar, longitudinally arranged on the inner wall of the housing;

[0031] A control wheel is rotatably arranged on one side of the mounting frame, a torsion spring is arranged at the mounting point of the control wheel, a ratchet block and an abutment surface are arranged on the control wheel, and the ratchet block is clamped on the ratchet bar; and

[0032] A stopper is arranged on one side of the mounting frame and contacts the abutting surface.

[0033] In a preferred embodiment, the rotation point of the control wheel and the hinge point of the mounting frame on the lifting frame are on the same axis.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] When the device is in use, a sodium thiosulfate aqueous solution is placed in a shell for crystallization. During crystallization, the solution is stirred by a stirring component so that the crystals will not settle to the bottom of the shell, and the sodium thiosulfate crystals reaching a certain size fall onto the screening belt. The driving component drives the lifting frame to reciprocate in the shell so that the screening belt reciprocates. Under the action of the control mechanism, the screening belt rises to the top in a horizontal state so that the screening belt can receive as many crystals as possible during the rising process and bring them out of the liquid surface. The roller is driven to rotate under the action of the transmission component to drive the screening belt to rotate, thereby The crystals received on the screening belt can be transported to one end and then dropped into the collecting assembly, and the crystals reaching a certain size can be collected by the collecting assembly. During the descent of the screening belt, the control mechanism causes it to flip upward at a certain angle to avoid separating the crystals reaching a certain size to the bottom of the screening belt to facilitate continuous collection. As a result, the device can automatically collect crystals reaching a certain size continuously during the process of easy crystallization of sodium thiosulfate, without the need for repeated manual extraction of crystals, which effectively reduces the labor intensity of the staff and improves the production efficiency of sodium thiosulfate crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0037] Figure 1 A schematic diagram of the three-dimensional structure of a sodium thiosulfate crystal particle size control device provided by the present invention;

[0038] Figure 2 A cross-sectional view of a sodium thiosulfate crystal particle size control device according to the present invention;

[0039] Figure 3 This is a schematic diagram of the internal structure of a shell in a sodium thiosulfate crystal particle size control device of the present invention;

[0040] Figure 4 The present invention is a schematic diagram of the installation structure of a screening belt in a sodium thiosulfate crystal particle size control device;

[0041] Figure 5 for Figure 4 Schematic diagram of the structure after splitting;

[0042] Figure 6 for Figure 5 A magnified schematic diagram of area a in the middle;

[0043] Figure 7 The present invention is a schematic diagram of the structure of a collecting shell in a sodium thiosulfate crystal particle size control device.

[0044] Reference numerals:

[0045] 101, housing; 102, opening; 103, mounting column; 104, spur rack; 105, ratchet rack; 106, drive motor; 107, rotating shaft; 108, stirring wheel;

[0046] 201, reciprocating screw rod; 202, first synchronous wheel; 203, second synchronous wheel; 204, connecting block; 205, synchronous belt;

[0047] 301, lifting frame; 302, supporting block; 303, mounting frame; 304, roller; 305, gear; 306, screening belt;

[0048] 401, control wheel; 402, ratchet block; 403, abutment surface; 404, stop block;

[0049] 501, collecting frame; 502, receiving plate; 503, receiving sheet; 504, connecting seat. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technicians in this field can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0051] Example:

[0052] like Figures 1 to 3 As shown, the present invention provides a sodium thiosulfate crystal particle size control device, including a housing 101, a stirring assembly, a lifting frame 301 and a driving assembly for driving the lifting frame 301 to lift and reciprocate are arranged in the housing 101, an opening 102 is also opened on one side of the housing 101, a collecting assembly is arranged at the opening 102, the stirring assembly includes a driving motor 106 fixedly arranged at the top of the housing 101, a rotating shaft 107 is arranged at the output shaft of the driving motor 106, and a stirring wheel 108 is arranged at the bottom of the rotating shaft 107. The driving assembly includes a reciprocating screw rod 201 rotatably arranged in the housing 101 along its axis, the lifting frame 301 is arranged on the reciprocating screw rod 201 and cooperates with it, a first synchronous wheel 202 is arranged on the rotating shaft 107, a second synchronous wheel 203 is arranged on the reciprocating screw rod 201, and the second synchronous wheel 203 is connected to the first synchronous wheel 202 through a synchronous belt 205.

[0053] During use, the sodium thiosulfate solution is placed in the housing 101, and the liquid level is controlled below the collection assembly. During the crystallization process, the rotating shaft 107 and the stirring wheel 108 at its end are controlled to rotate by the driving motor 106 to stir the solution, so as to prevent the crystals from settling to the bottom of the solution, and to make the crystals suspended in the solution, so as to facilitate the collection of the crystals. The rotating shaft 107 drives the first synchronous wheel 202 to rotate during the rotation process, and the first synchronous wheel 202 controls the second synchronous wheel 203 to rotate through the synchronous belt 205 during the rotation process, so as to rotate the reciprocating screw 201, and the reciprocating screw 201 can control the lifting frame 301 to reciprocate in the housing 101 during the rotation process.

[0054] like Figure 2 , 3 As shown in FIG. 4 , in this embodiment, a mounting frame 303 is hingedly connected to a lifting frame 301, and at least two groups of rollers 304 are arranged at intervals on the mounting frame 303. The two groups of rollers 304 are sleeved with screening belts 306, and a groove for the rotating shaft 107 to pass through is provided on the mounting frame 303. A supporting block 302 is provided on the lifting frame 301, and the supporting block 302 abuts against the bottom surface of the mounting frame 303. The second synchronous wheel 203 is rotatably arranged on the housing 101 along its axis, and a connecting block 204 is arranged at the bottom thereof, and the connecting block 204 is slidably mounted on the end of the reciprocating screw rod 201.

[0055] The lifting frame 301 drives the mounting frame 303 to rise and fall during the lifting process. The crystals that have crystallized to a certain size during the rising process of the mounting frame 303 are screened out by the screening belt 306 and moved out of the water surface. The lifting frame 301 supports the mounting frame 303 through the supporting block 302 during the movement to prevent the mounting frame 303 from turning down. The setting of the groove prevents the lifting and turning of the mounting frame 303 from being interfered by the rotating shaft 107. When the inner wall of the device needs to be cleaned, the top cover of the housing 101 can be opened, and the connecting block 204 can be slid out of the end of the reciprocating screw 201 to complete the disassembly of the stirring wheel 108.

[0056] like Figures 2 to 6As shown, in this embodiment, a control mechanism connected to the mounting frame 303 is provided in the housing 101, and the mounting frame 303 is controlled to be in a horizontal state when the lifting frame 301 rises through the control mechanism, and the mounting frame 303 is driven to flip upward when the lifting frame 301 descends. The control mechanism includes a ratchet bar 105 longitudinally arranged on the inner wall of the housing 101, a control wheel 401 is rotatably provided on one side of the mounting frame 303, the rotation point of the control wheel 401 and the hinge point of the mounting frame 303 on the lifting frame 301 are on the same axis, a torsion spring is provided at the mounting point of the control wheel 401, a ratchet block 402 and an abutment surface 403 are provided on the control wheel 401, the ratchet block 402 is clamped on the ratchet bar 105, and a stopper 404 is provided on one side of the mounting frame 303, and the stopper 404 contacts the abutment surface 403.

[0057] During the ascending process of the lifting frame 301 and the mounting frame 303, the ratchet bar 105 pushes the inclined surface of the ratchet block 402 to make the control wheel 401 rotate, and the ratchet block 402 is always stuck on the ratchet bar 105 under the action of the torsion spring, so that the mounting frame 303 remains horizontal during the ascending process, and the crystals of a certain particle size are supported by the horizontal screening belt 306. During the descending process of the lifting frame 301 and the mounting frame 303, the control wheel 401 is driven to rotate a certain angle through the cooperation of the ratchet block 402 and the ratchet bar 105, and the mounting frame 303 is rotated and flipped upward by a certain angle along its hinge point through the abutment of the abutment surface 403 and the stopper 404, so as to prevent the screening belt 306 from separating the crystals of a certain particle size to the bottom of the shell 101 during the downward movement of the mounting frame 303, thereby fully removing the precipitated crystals.

[0058] like Figures 3 to 5 As shown, in this embodiment, a transmission assembly connected to the roller 304 is provided on the housing 101, and the roller 304 is driven to rotate by the transmission assembly when the screening belt 306 moves to the collection area of ​​the collection assembly. The transmission assembly includes a spur rack 104 provided on the inner wall of the housing 101, and a group of rollers 304 are provided with a gear 305, and the gear 305 can mesh with the spur rack 104.

[0059] When the mounting frame 303 moves to the position of the collecting assembly, the gear 305 moves to engage with the spur rack 104, and the mounting frame 303 continues to move. Through the cooperation of the gear 305 and the spur rack 104, one set of rollers 304 rotates to drive the screening belt 306 to move. During the movement of the screening belt 306, the crystals supported on it fall from one end and are collected by the collecting assembly.

[0060] like Figure 2 , 3As shown in Figure 7, in this embodiment, the collection component includes a detachable collection frame 501 arranged at the opening 102, and a receiving plate 502 is hinged on one side of the collection frame 501. The receiving plate 502 extends out of the collection frame 501, and a torsion spring is provided at the hinge point of the receiving plate 502. The bottom of the spur rack 104 is higher than the height of the receiving plate 502, and a receiving piece 503 made of flexible material is provided at the end of the receiving plate 502. A connecting seat 504 is provided on the collection frame 501, and a mounting column 103 is provided on the side wall of the shell 101. The connecting seat 504 can be slidably mounted on the mounting column 103.

[0061] During the rising process, the mounting frame 303 can push the receiving plate 502 to rotate and retract along its hinge point, and extend it again under the action of the torsion spring. During the movement of the screening belt 306, the crystals received on the upper part thereof fall onto the receiving plate 502, and enter the collection frame 501 under the guidance of the receiving plate 502. During the falling process, the mounting frame 303 is flipped under the action of the control component, so that the distance between the gear 305 and the inside of the housing 101 increases and the gear 305 is separated from the spur rack 104, avoiding collision with the receiving plate 502. The receiving sheet 503 made of flexible material buffers the falling of the crystal to avoid damage to the crystal. In addition, during the rising process of the mounting frame 303, the ratchet block 402 knocks the ratchet bar 105 to transmit the vibration to the screening belt 306, so that the crystals fall off fully, avoiding the crystals adhering to the screening belt 306 and affecting the removal efficiency. When the collection frame 501 is full of crystals, the collection frame 501 can be slid horizontally to separate the connecting seat 504 from the mounting column 103 for disassembly, so that the collection of crystals is more convenient.

[0062] Specific usage and beneficial effects of the present invention:

[0063] The device can be used for the particle size control of sodium thiosulfate crystals, and can also be used for the particle size control of other crystals. When in use, a sodium thiosulfate aqueous solution is placed in the shell 101 for crystallization. During crystallization, the solution is stirred by the stirring component so that the crystals will not settle to the bottom of the shell 101. Sodium thiosulfate crystals that reach a certain particle size fall onto the screening belt 306. The driving component drives the lifting frame 301 to reciprocate in the shell 101, so that the screening belt 306 reciprocates. Under the action of the control mechanism, the screening belt 306 is horizontally raised to the top, so that the screening belt 306 receives as many crystals as possible during the rising process and brings them out of the liquid surface, and the screening belt 306 is moved to the top of the screen belt 306 by the transmission component. The driving roller 304 rotates under the action to drive the screening belt 306 to rotate, so that the crystals carried by the screening belt 306 can be transported to one end and then dropped into the collecting component, and the crystals reaching a certain particle size are collected by the collecting component. During the descent of the screening belt 306, the control mechanism causes it to flip upward at a certain angle to avoid separating the crystals reaching a certain particle size to the bottom of the screening belt 306 to facilitate continuous collection, so that the device can continuously and automatically collect crystals reaching a certain particle size during the process of easy crystallization of sodium thiosulfate, without the need for repeated manual extraction of crystals, effectively reducing the labor intensity of the staff and improving the production efficiency of sodium thiosulfate crystals.

[0064] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. On the basis of the present invention, some modifications or improvements can be made thereto, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A sodium thiosulfate crystal particle size control device, characterized in that: Included are: A shell (101), wherein a stirring component, a lifting frame (301) and a driving component for driving the lifting frame (301) to lift and reciprocate are arranged in the shell (101); an opening (102) is also opened on one side of the shell (101), and a collecting component is arranged at the opening (102); A mounting frame (303) is hinged on the lifting frame (301), and at least two groups of rollers (304) are arranged at intervals on the mounting frame (303), and screening belts (306) are sleeved on the two groups of rollers (304); a control mechanism, arranged in the housing (101) and connected to the mounting frame (303), so as to control the mounting frame (303) to be in a horizontal state when the lifting frame (301) rises, and to drive the mounting frame (303) to flip upward when the lifting frame (301) descends; and A transmission assembly is arranged on the housing (101) and connected to the roller (304) so ​​as to drive the roller (304) to rotate when the screening belt (306) moves to the collecting area of ​​the collecting assembly.

2. A sodium thiosulfate crystal particle size control device according to claim 1, characterized in that: The stirring assembly comprises: A driving motor (106) is fixedly arranged on the top of the housing (101); A rotating shaft (107) is arranged at the output shaft of the driving motor (106); and The stirring wheel (108) is arranged at the bottom of the rotating shaft (107).

3. A sodium thiosulfate crystal particle size control device according to claim 2, characterized in that: The mounting frame (303) is provided with a groove for the rotating shaft (107) to pass through.

4. A sodium thiosulfate crystal particle size control device according to claim 2, characterized in that: The drive assembly comprises: A reciprocating screw rod (201) is rotatably arranged along its axis in the housing (101), and the lifting frame (301) is arranged on the reciprocating screw rod (201) and cooperates with the reciprocating screw rod (201); A first synchronous wheel (202) is arranged on the rotating shaft (107); and The second synchronous wheel (203) is arranged on the reciprocating screw rod (201) and is connected to the first synchronous wheel (202) via a synchronous belt (205).

5. A sodium thiosulfate crystal particle size control device according to claim 4, characterized in that: The second synchronous wheel (203) is rotatably arranged on the housing (101) along its axis, and a connecting block (204) is arranged at the bottom thereof. The connecting block (204) is lifted and slidably clamped on the end of the reciprocating screw rod (201).

6. A sodium thiosulfate crystal particle size control device according to claim 1, characterized in that: The collection component includes: A collecting frame (501) is detachably arranged at the opening (102); A receiving plate (502) is hinged on one side of the collecting frame (501) and extends outward, and a torsion spring is provided at its hinge point, and a receiving sheet (503) made of a flexible material is provided at the end of the receiving plate (502); and The connecting seat (504) is arranged on the collecting frame (501), and the side wall of the shell (101) is provided with a mounting column (103), and the connecting seat (504) can be slidably sleeved on the mounting column (103).

7. A sodium thiosulfate crystal particle size control device according to claim 6, characterized in that: The transmission assembly comprises: A spur gear (104) is arranged on the inner wall of the housing (101), and its bottom is higher than the height of the receiving plate (502); and A gear (305) is arranged on one set of the rollers (304) and can mesh with the spur rack (104).

8. A sodium thiosulfate crystal particle size control device according to claim 1, characterized in that: The lifting frame (301) is provided with a supporting block (302), and the supporting block (302) abuts against the bottom surface of the mounting frame (303).

9. A sodium thiosulfate crystal particle size control device according to claim 1, characterized in that: The control mechanism includes: A ratchet bar (105) is longitudinally arranged on the inner wall of the housing (101); A control wheel (401) is rotatably arranged on one side of the mounting frame (303); a torsion spring is arranged at the mounting point of the control wheel (401); a ratchet block (402) and an abutment surface (403) are arranged on the control wheel (401); and the ratchet block (402) is clamped on the ratchet bar (105); and A stopper (404) is arranged on one side of the mounting frame (303) and is in contact with the abutting surface (403).

10. A sodium thiosulfate crystal particle size control device according to claim 9, characterized in that: The rotation point of the control wheel (401) and the hinge point of the mounting frame (303) on the lifting frame (301) are on the same axis.

Images