Tail water crystallization treatment device

Abstract

The utility model provides a tail water crystallization treatment device, which belongs to the technical field and comprises a crystallization kettle, a feed port arranged above the crystallization kettle, a discharge port arranged below the crystallization kettle, a pneumatic ball valve arranged below the discharge port, a coil pipe arranged in the crystallization kettle, and the left end of the coil pipe penetrates through the left side wall of the crystallization kettle. The right end of the coil pipe penetrates through the right side wall of the crystallization kettle, a rotary connecting groove is formed in the bottom, located on the left side of the coil pipe, of the crystallization kettle, a threaded rod is rotationally arranged on the rotary connecting groove, and the upper end of the threaded rod is rotationally arranged on the top wall of the crystallization kettle and penetrates through the crystallization kettle; a transmission block is arranged on the threaded rod, a scraping plate is arranged on the right side of the transmission block, a plurality of annular holes are formed in the scraping plate, a coil pipe is arranged in each annular hole in a penetrating mode, and a suction filtration groove is formed below the discharging opening; according to the utility model, crystal attachments on the coil pipe can be conveniently cleaned and can be cleaned for multiple times, so that the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid treatment, in particular to a tail water crystallization treatment device. Background Art

[0002] The production of rubber vulcanization accelerators CBS and TBBS uses MBT and cyclohexylamine / tert-butylamine as synthetic raw materials, respectively, and sodium hypochlorite as an oxidant. After the reaction is completed, the finished product and the mother liquor form a suspension, and then the solid and liquid are separated through centrifugal separation, water washing, mother liquor recovery and other processes, and the wastewater is discharged. The sodium chloride content of this part of wastewater is about 15%, and it needs to be desalted by an evaporation device before entering the biochemical system for further treatment. The entry of the three-effect evaporation device is the pre-treated rubber vulcanization accelerator CBS and TBBS production wastewater. The products are distilled water, tail water (close to saturated brine) and waste salt. The tail water needs to enter the evaporation system for repeated distillation. Due to multiple cycles, the COD of the tail water increases and the impurities increase. Long-term operation will block the pipeline and affect the processing capacity. Therefore, the tail water is connected to a crystallization kettle for forced cooling to reduce the solubility of sodium chloride, but the crystallized product will be adsorbed on the coil, which will have a serious impact on the subsequent cooling and is difficult to clean. Utility Model Content

[0003] In view of this, the utility model provides a tailwater crystallization treatment device, which can not only facilitate the cleaning of crystal attachments on the coil, but also can be cleaned multiple times, thereby reducing the labor intensity of workers.

[0004] In order to solve the above technical problems, the utility model provides a tail water crystallization treatment device, including a crystallization kettle, a feed inlet is provided above the crystallization kettle, a discharge outlet is provided below the crystallization kettle, a pneumatic ball valve is provided below the discharge outlet, a coil is provided in the crystallization kettle, the left end of the coil is penetrated through the left side wall of the crystallization kettle, the right end of the coil is penetrated through the right side wall of the crystallization kettle, a rotating connection groove is provided at the bottom of the crystallization kettle located on the left side of the coil, a threaded rod is rotatably provided on the rotating connection groove, the upper end of the threaded rod is rotatably provided on the top wall of the crystallization kettle, the upper end of the threaded rod passes through the crystallization kettle, a driving device is provided on the left side of the threaded rod located at the upper end of the crystallization kettle, a transmission block is provided on the threaded rod, a scraper is provided on the right side of the transmission block, a plurality of annular holes are provided on the scraper, a coil is penetrated in each annular hole, and a suction filtration tank is placed below the discharge outlet.

[0005] Furthermore, a hole is provided on the top wall of the crystallization kettle, and a threaded rod is rotatably arranged in the hole.

[0006] Furthermore, a smooth portion is provided on the threaded rod rotatably disposed in the hole, and the smooth portion is rotatably disposed in the hole.

[0007] Furthermore, the rotary connection groove includes a receiving column arranged at the bottom of the crystallization kettle, a wheel disc groove is rotatably arranged on the receiving column, an arc groove is opened on the wheel disc groove, an arc head is arranged at the lower end of the threaded rod, and the arc groove is matched with the arc head.

[0008] Furthermore, the driving device includes a stepper motor arranged on the top of the crystallization kettle, a first gear is arranged at the output end of the stepper motor, and the first gear is meshed with a second gear arranged at the upper end of the threaded rod.

[0009] Furthermore, the transmission block is provided with a pattern matching the threads on the threaded rod.

[0010] Furthermore, a filter plate is arranged in the filtration tank, a vacuum filtration device is arranged below the filter plate, and a support column is arranged on the bottom outer wall of the crystallization kettle.

[0011] The beneficial effects of the above technical solution of the utility model are as follows:

[0012] 1. By setting a rotating groove at the bottom of the crystallization kettle on the left side of the coil, the lower end of the threaded rod can be fixed without affecting the rotation of the threaded rod, and the transmission block arranged on the threaded rod and the scraper on the right side of the transmission block make the transmission block not rotate but rise or fall under the influence of the rotation of the threaded rod, and drive the scraper to rise and fall.

[0013] 2. By providing a smooth portion on the threaded rod, friction of the threaded rod in the hole can be reduced.

[0014] 3. The stepper motor disposed on the top of the crystallization kettle is used to drive the threaded rod passing through the hole, so that the threaded rod rotates to provide power to the transmission block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a tailwater crystallization treatment device of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the driving device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rotary joint of the utility model;

[0018] Figure 4 It is a schematic diagram of the connection between the transmission block and the scraper of the utility model.

[0019] 1. Crystallization kettle; 2. Feed inlet; 3. Discharge outlet; 4. Pneumatic ball valve; 5. Coil; 6. Rotary joint; 7. Threaded rod; 8. Driving device; 9. Transmission block; 10. Scraper; 11. Annular hole; 12. Filtering groove; 13. Hole; 14. Smooth part; 15. Support column; 16. Wheel groove; 17. Arc groove; 18. Arc head; 19. Stepper motor; 20. First gear; 21. Filter plate; 22. Vacuum filtration device; 23. Support column; 24. Second gear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] like Figure 1-4 As shown: a tail water crystallization treatment device comprises a crystallization kettle, a feed inlet is provided above the crystallization kettle, a discharge outlet is provided below the crystallization kettle, a pneumatic ball valve is provided below the discharge outlet, a coil is provided in the crystallization kettle, the left end of the coil is penetrated through the left side wall of the crystallization kettle, the right end of the coil is penetrated through the right side wall of the crystallization kettle, a rotary connection groove is provided at the bottom of the crystallization kettle on the left side of the coil, a threaded rod is rotatably provided on the rotary connection groove, the upper end of the threaded rod is rotatably provided on the top wall of the crystallization kettle, the upper end of the threaded rod passes through the crystallization kettle, a driving device is provided on the left side of the threaded rod located at the upper end of the crystallization kettle, a transmission block is provided on the threaded rod, a scraper is provided on the right side of the transmission block, a plurality of annular holes are provided on the scraper, a coil is penetrated in each annular hole, and a suction filtration tank is placed below the discharge outlet;

[0022] Specifically, a tailwater crystallization treatment device comprises a crystallization kettle 1, a feed inlet 2 is provided above the crystallization kettle 1, a discharge port 3 is provided below the crystallization kettle 1, a pneumatic ball valve 4 is provided below the discharge port 3, a coil 5 is provided in the crystallization kettle 1, the left end of the coil 5 is penetrated through the left side wall of the crystallization kettle 1, the right end of the coil 5 is penetrated through the right side wall of the crystallization kettle 1, a rotary connection groove 6 is provided at the bottom of the crystallization kettle 1 on the left side of the coil 5, a threaded rod 7 is rotatably provided on the rotary connection groove 6, the upper end of the threaded rod 7 is rotatably provided on the top wall of the crystallization kettle 1, the upper end of the threaded rod 7 passes through the crystallization kettle 1, a driving device 8 is provided on the left side of the threaded rod 7 located at the upper end of the crystallization kettle 1, a transmission block 9 is provided on the threaded rod 7, a scraper 10 is provided on the right side of the transmission block 9, a plurality of annular holes 11 are provided on the scraper 10, a coil 5 is penetrated in each annular hole 11, and a suction filtration tank 12 is placed below the discharge port 3.

[0023] According to one embodiment of the utility model, Figure 1-4 As shown, a hole 13 is opened on the top of the crystallization kettle 1, and a threaded rod 7 is placed in the hole 13, and the threaded rod 7 can rotate.

[0024] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, the thread of the portion where the threaded rod 7 contacts the hole 13 is removed, and this portion is smooth and contacts the inner wall of the hole 13, and the two are in contact with each other in rotation.

[0025] According to one embodiment of the utility model, Figure 1-4 As shown, a columnar chassis is welded at the bottom of the crystallization kettle 1, and a block is placed on top of the chassis. The block is the wheel groove 16. An arc-shaped circular groove is opened in the center of the upper surface of the block, and a spherical shape is cast at the bottom end of the threaded rod 7. The sphere fits with the previous circular groove and can rotate in the circular groove.

[0026] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, a stepper motor 19 is arranged above the outer wall of the crystallization kettle 1, a first gear 20 is arranged at the output end of the stepper motor 19, and a second gear 24 is arranged at the upper end of the threaded rod 7. After the first gear 20 is driven by the stepper motor 19, it will drive the second gear 24 meshing on the first gear 20 to rotate the threaded rod 7.

[0027] In one embodiment of the present invention, Figure 1 As shown, a thread matching the texture of the threaded rod 7 is provided on the inner wall of the transmission block 9 that contacts the threaded rod 7 , so that the transmission block 9 can be driven by the threaded rod 7 .

[0028] In another embodiment of the present invention, Figure 1 As shown, a filter plate 21 is installed below the filtration tank 12, a vacuum filtration device 22 is arranged below the filter plate 21, and four support columns 23 are welded on the four rectangular lower side walls of the crystallization kettle 1 for supporting the crystallization kettle 1.

[0029] The working method (or working principle) of the utility model:

[0030] When the tail water enters the crystallization kettle from the feed port, cold water is introduced into the coil, the tail water crystallizes, and the crystals are adsorbed on the coil. The stepper motor is started, and the stepper motor rotates the first gear, and the first gear drives the second gear, and the second gear drives the threaded rod to rotate. The rotation of the threaded rod drives the transmission block to rise and fall, and the rise and fall of the transmission block drives the scraper to rise and fall. The scraper scrapes the outer surface of the coil vertically to make the crystallized particles separate from the coil and fall to the bottom of the crystallization kettle. Then the pneumatic ball valve is opened to discharge the waste liquid and crystals in the crystallization kettle, and the waste liquid and crystals enter the suction filtration tank. The liquid is discharged through the filter plate, and the crystals are left above the filter plate for cleaning.

[0031] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0032] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tail water crystallization treatment device, comprising a crystallization kettle (1), a feed inlet (2) is provided above the crystallization kettle (1), a discharge outlet (3) is provided below the crystallization kettle (1), and a pneumatic ball valve (4) is provided below the discharge outlet (3), characterized in that: A coil (5) is arranged in the crystallization kettle (1), the left end of the coil (5) is passed through the left side wall of the crystallization kettle (1), the right end of the coil (5) is passed through the right side wall of the crystallization kettle (1), a rotary connection groove (6) is arranged at the bottom of the crystallization kettle (1) on the left side of the coil (5), a threaded rod (7) is rotatably arranged on the rotary connection groove (6), the upper end of the threaded rod (7) is rotatably arranged on the top wall of the crystallization kettle (1), the upper end of the threaded rod (7) passes through the crystallization kettle (1), a driving device (8) is arranged on the left side of the threaded rod (7) at the upper end of the crystallization kettle (1), a transmission block (9) is arranged on the threaded rod (7), a scraper (10) is arranged on the right side of the transmission block (9), a plurality of annular holes (11) are provided on the scraper (10), a coil (5) is passed through each annular hole (11), and a suction filtration tank (12) is arranged below the discharge port (3).

2. A tailwater crystallization treatment device according to claim 1, characterized in that: A hole (13) is provided on the top wall of the crystallization kettle (1), and a threaded rod (7) is rotatably arranged in the hole (13).

3. A tailwater crystallization treatment device as claimed in claim 2, characterized in that: A smooth portion (14) is provided on the threaded rod (7) rotatably disposed in the hole (13), and the smooth portion (14) is rotatably disposed in the hole (13).

4. A tailwater crystallization treatment device as claimed in claim 2, characterized in that: The rotary connection groove (6) comprises a receiving column (15) arranged at the bottom of the crystallization kettle (1), a wheel groove (16) is rotatably arranged on the receiving column (15), a circular arc groove (17) is provided on the wheel groove (16), and a circular arc head (18) is arranged at the lower end of the threaded rod (7), and the circular arc groove (17) is matched with the circular arc head (18).

5. A tailwater crystallization treatment device according to claim 1, characterized in that: The driving device (8) comprises a stepping motor (19) arranged on the top of the crystallization kettle (1), a first gear (20) being arranged at the output end of the stepping motor (19), and the first gear (20) being meshed with a second gear (24) arranged at the upper end of the threaded rod (7).

6. A tailwater crystallization treatment device as claimed in claim 2, characterized in that: The transmission block (9) is provided with a pattern matching the threads on the threaded rod (7).

7. A tail water crystallization treatment device according to claim 1, characterized in that: A filter plate (21) is arranged in the filtration tank (12), a vacuum filtration device (22) is arranged below the filter plate (21), and a support column (23) is arranged on the bottom outer wall of the crystallization kettle (1).

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