Integrated separation device for silica gel in sodium fluoride mother liquor

Abstract

The utility model relates to the technical field of sodium fluoride production, and discloses an integrated separation device for silica gel in sodium fluoride mother liquor, which comprises a shell, a water inlet pipe is fixedly communicated with the inside of the upper surface of the shell, and a flow baffle is fixedly mounted at the top of the inner wall of the shell. According to the integrated separation device for the silica gel in the sodium fluoride mother liquor, by adopting the technical scheme, an existing multi-stage standing separation mode is replaced, arrangement of a plurality of settling tanks is avoided, the integrated device is adopted, the occupied area of the device is greatly reduced, the maintenance cost of the device is effectively reduced, continuous operation of the device is achieved, and the production efficiency is improved. The productivity of operation equipment is improved; the water stepping plate is additionally arranged, and the arc-shaped intercepting plate is matched, so that the stability of water flow in the separation device is ensured; by means of the interception acting force of the arc-shaped interceptor plate and the double acting force of the gravity of the silica gel, the settling speed of the silica gel in the sodium fluoride mother liquor is increased, and the silica gel separation efficiency of the separation device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sodium fluoride production, in particular to an integrated separation device for silica gel in sodium fluoride mother liquor. Background Technique

[0002] A large amount of mother liquor will be generated during the production of sodium fluoride. By recycling the mother liquor to the dissolution process of sodium fluorosilicate and soda ash raw materials, the recycling of the mother liquor can be realized, and the discharge of waste water can be reduced. However, due to the presence of a certain amount of silica gel in the mother liquor, directly returning it to the system will inevitably lead to an increase in the content of silicon dioxide in the system, resulting in an increase in silicon dioxide impurities in sodium fluoride and seriously affecting the product quality. Therefore, the existing process usually adopts a multi-stage static separation method, in which the sodium fluoride mother liquor enters multiple sedimentation tanks step by step. After a long time of static settlement, all the silica gel settles to the bottom of the tank, and then the supernatant in the sedimentation tank is taken for recycling.

[0003] However, the existing silica gel separation devices in sodium fluoride mother liquor generally have the following defects:

[0004] 1. The multi-stage static separation only relies on the gravity of the silica gel itself to achieve separation. However, the silica gel particles are relatively fine and the sedimentation speed is extremely slow. To achieve complete separation of the silica gel in the mother liquor, a long static settlement time is required. Therefore, the separation efficiency of the existing devices is relatively low.

[0005] 2. The multi-stage static separation requires multiple sedimentation tanks, which cover a large area. At the same time, there are many pipelines, which are easy to block, resulting in a large amount of work for equipment maintenance and cleaning.

[0006] 3. Adopting the multi-stage static separation method makes sodium fluoride can only adopt an intermittent production method and cannot achieve continuous production. The existing silica gel separation device seriously restricts the production capacity of the sodium fluoride production line. Therefore, we propose an integrated separation device for silica gel in sodium fluoride mother liquor to solve the above problems. Content of the Utility Model

[0007] In view of the deficiencies of the prior art, the utility model provides an integrated separation device for silica gel in sodium fluoride mother liquor, which solves the problems mentioned in the background technique.

[0008] The technical solution adopted by the utility model to solve its technical problems is: an integrated separation device for silica gel in sodium fluoride mother liquor, including a housing. The upper surface inside the housing is fixedly communicated with a water inlet pipe. The top of the inner wall of the housing is fixedly installed with a baffle plate. One side of the top of the inner wall of the housing near the baffle plate is installed with a water distribution plate. The middle of the inner wall of the housing is fixedly installed with an intercepting plate. The right side of the inner wall of the housing is fixedly installed with an L-shaped plate. The right side of the housing is fixedly communicated with a water outlet pipe. The bottom end of the housing is fixedly communicated with a sludge discharge pipe. A sludge scraping structure is arranged inside the housing.

[0009] By adopting the above technical solution, the L-shaped plate and the water outlet pipe are in an overflow form.

[0010] Further, the sludge scraping structure includes a threaded rod, a driving motor, a support block, a threaded block, a fixed scraper, a spring scraper, a rectangular chute, a slider and a hydraulic cylinder. One end of the threaded rod penetrates through the right side inside of the housing. One end of the threaded rod is fixedly connected to a driving motor, and the driving motor is fixedly installed on the outer wall of the right side of the housing. One end of the threaded rod is rotatably connected to a support block, and the outer wall of the support block is fixedly connected to the bottom of the inner wall of the housing. The outer wall of the threaded rod is threadedly connected to a threaded block, and two fixed scrapers are fixedly connected to the outer wall of the threaded block. A spring scraper is fixedly connected to the outer wall of the threaded block close to the fixed scraper. A rectangular chute is opened on the outer wall of the spring scraper close to the fixed scraper, and a slider is slidably connected to the inside of the rectangular chute. A hydraulic cylinder is fixedly installed inside the fixed scraper, and the output end of the hydraulic cylinder is fixedly connected to the slider.

[0011] Further, the water distribution plate is internally provided with small holes with a diameter of 10 mm evenly.

[0012] By adopting the above technical solution, water can enter the inside of the housing evenly.

[0013] Further, the intercepting plate is an arc-shaped plate and is in a wavy curve.

[0014] By adopting the above technical solution, the intercepting plate makes the silica gel particles in the sodium fluoride mother liquor impact on the intercepting plate and thus settle down. At the same time, the arc-shaped plate can ensure the stability of the water flow and avoid local eddy currents.

[0015] Further, the bottom slope of the housing is at an inclination of 15 degrees.

[0016] By adopting the above technical solution, the separated silica gel gradually flows towards the bottom sludge discharge pipe, avoiding longitudinal accumulation and affecting the separation efficiency.

[0017] Further, the bottoms of the fixed scraper and the spring scraper are attached to the bottom of the inner wall of the housing.

[0018] By adopting the above technical solution, the fixed scraper and the spring scraper can scrape the sludge at the bottom of the inner wall of the housing clean.

[0019] The beneficial effects of the present utility model are:

[0020] 1. The integrated separation device for silica gel in the sodium fluoride mother liquor, by adopting the above technical solution, replaces the existing multi-stage static separation method, avoids the setting of multiple sedimentation tanks, and adopts an integrated device, greatly reducing the floor area of the equipment, effectively reducing the equipment maintenance cost, realizing the continuous operation of the device, and improving the production capacity of the operating equipment; an additional water distribution plate is added, and with the design of the arc-shaped intercepting plate, the stability of the water flow inside the separation device is ensured; relying on the interception force of the arc-shaped intercepting plate and the gravity of the silica gel itself, the sedimentation speed of the silica gel in the sodium fluoride mother liquor is increased, and the silica gel separation efficiency of the separation device is effectively enhanced.

[0021] 2. The integrated separation device for silica gel in the sodium fluoride mother liquor, through the setting of the sludge scraping structure, starts the driving motor, and the driving motor drives the threaded rod to rotate. The threaded rod makes the threaded block drive the two fixed scraping plates and the two spring scraping plates to move from the right end of the threaded rod to the left end of the threaded rod, so that the two fixed scraping plates and the two spring scraping plates scrape the sludge at the bottom of the inner wall of the housing from right to left. When the two fixed scraping plates and the two spring scraping plates move to the left end of the threaded rod, the hydraulic cylinder is started, and the hydraulic cylinder drives the slider to move from the inside to the outside inside the rectangular sliding groove through the output end, making the spring scraping plate arc-shaped, so that the spring scraping plate is convenient for concentrating the sludge at the bottom of the inner wall of the housing inside the sludge discharge pipe, and the sludge can be quickly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0023] Figure 1 Structural schematic diagram of the present invention;

[0024] Figure 2 Three-dimensional structural diagram of the present invention;

[0025] Figure 3 Structural sectional view of the present invention;

[0026] Figure 4 Structural schematic diagram of the sludge scraping structure of the present invention;

[0027] Figure 5 For the present invention Figure 1 Enlarged schematic diagram of the structure at A in the present invention;

[0028] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at B in the present invention.

[0029] Description of reference numerals: 1. Outer shell; 2. Water inlet pipe; 3. Baffle plate; 4. Water distribution plate; 5. Intercepting plate; 6. L-shaped plate; 7. Water outlet pipe; 8. Sludge discharge pipe; 9. Scraper structure; 91. Threaded rod; 92. Driving motor; 93. Support block; 94. Threaded block; 95. Fixed scraper; 96. Spring scraper; 97. Rectangular chute; 98. Slide block; 99. Hydraulic cylinder. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] Please refer to Figures 1-6 , a silica gel integrated separation device in sodium fluoride mother liquor, including an outer shell 1, the inner part of the upper surface of the outer shell 1 is fixedly communicated with a water inlet pipe 2, a baffle plate 3 is fixedly installed at the top of the inner wall of the outer shell 1, a water distribution plate 4 is installed on one side of the top of the inner wall of the outer shell 1 close to the baffle plate 3, an intercepting plate 5 is fixedly installed in the middle of the inner wall of the outer shell 1, an L-shaped plate 6 is fixedly installed on the right side of the inner wall of the outer shell 1, a water outlet pipe 7 is fixedly communicated with the right side of the outer shell 1, a sludge discharge pipe 8 is fixedly communicated with the bottom end of the outer shell 1, and a scraper structure 9 is arranged inside the outer shell 1; By adopting the above technical solution, the L-shaped plate 6 and the water outlet pipe 7 are in an overflow form.

[0032] Furthermore, the scraping mud structure 9 includes a threaded rod 91, a driving motor 92, a support block 93, a threaded block 94, a fixed scraper 95, a spring scraper 96, a rectangular slide 97, a slider 98 and a hydraulic cylinder 99, one end of the threaded rod 91 passes through the right inner side of the shell 1, one end of the threaded rod 91 is fixedly connected to the driving motor 92, the driving motor 92 is fixedly installed on the right outer wall of the shell 1, one end of the threaded rod 91 is rotatably connected to the supporting block 93, the outer wall of the supporting block 93 is fixedly connected to the bottom of the inner wall of the shell 1, the outer wall of the threaded rod 91 is threadedly connected to the threaded block 94, the outer wall of the threaded block 94 is fixedly connected to two fixed scrapers 95, the outer wall of the threaded block 94 is fixedly connected to the spring scraper 96 on the side close to the fixed scraper 95, the outer wall of the spring scraper 96 is provided with a rectangular slide 97 on the side close to the fixed scraper 95, and the inner sliding groove 97 of the rectangular slide 97 A slider 98 is connected, and a hydraulic cylinder 99 is fixedly installed inside the fixed scraper 95, and the output end of the hydraulic cylinder 99 is fixedly connected to the slider 98; through the setting of the scraping structure 9, the drive motor 92 is started, and the drive motor 92 drives the threaded rod 91 to rotate, and the threaded rod 91 causes the threaded block 94 to drive the two fixed scrapers 95 and the two spring scrapers 96 to move from the right end of the threaded rod 91 to the left end of the threaded rod 91, so that the two fixed scrapers 95 and the two spring scrapers 96 scrape the sludge at the bottom of the inner wall of the shell 1 from right to left. When the two fixed scrapers 95 and the two spring scrapers 96 move to the left end of the threaded rod 91, the hydraulic cylinder 99 is started, and the hydraulic cylinder 99 drives the slider 98 to move from the inside to the outside inside the rectangular slide 97 through the output end, so that the spring scraper 96 is arc-shaped, so that the spring scraper 96 is convenient for the sludge at the bottom of the inner wall of the shell 1 to be concentrated inside the mud discharge pipe 8, and the sludge can be quickly discharged.

[0033] Furthermore, small holes with a diameter of ten millimeters are evenly arranged inside the water step plate 4; by adopting the above technical solution, the water flow can evenly enter the interior of the housing 1.

[0034] Furthermore, the intercepting plate 5 is an arc-shaped plate with a wavy curve. By adopting the above technical solution, the intercepting plate 5 causes the silica gel particles in the sodium fluoride mother liquor to collide with the intercepting plate 5 and settle down. At the same time, the use of the arc-shaped plate can ensure the stability of the water flow and avoid local vortexes.

[0035] Furthermore, the bottom slope of the shell 1 is fifteen degrees; by adopting the above technical solution, the separated silica gel gradually flows to the bottom mud discharge pipe 8 to avoid longitudinal accumulation and affect the separation efficiency.

[0036] Furthermore, the bottoms of the fixed scraper 95 and the spring scraper 96 are attached to the bottom of the inner wall of the outer shell 1 ; by adopting the above technical solution, the fixed scraper 95 and the spring scraper 96 can scrape away the sludge at the bottom of the inner wall of the outer shell 1 .

[0037] In use, the sodium fluoride mother liquor enters from the water inlet pipe 2, and evenly enters the interior of the outer shell 1 through the baffle plate 3 and the water distribution plate 4. When passing through the intercepting plate 5, the silica gel particles are intercepted and settle to the bottom of the inner wall of the outer shell 1. The supernatant is discharged from the water outlet pipe 7 in an overflow form. The sludge at the bottom gradually gathers in the sludge discharge pipe 8, and by starting the driving motor 92, the driving motor 92 drives the threaded rod 91 to rotate. The threaded rod 91 causes the threaded block 94 to drive the two fixed scraping plates 95 and the two spring scraping plates 96 to move from the right end of the threaded rod 91 to the left end of the threaded rod 91, so that the two fixed scraping plates 95 and the two spring scraping plates 96 scrape the sludge at the bottom of the inner wall of the outer shell 1 from right to left. When the two fixed scraping plates 95 and the two spring scraping plates 96 move to the left end of the threaded rod 91, the hydraulic cylinder 99 is started. The hydraulic cylinder 99 drives the slider 98 to move from the inside to the outside in the rectangular chute 97 through the output end, so that the spring scraping plate 96 is in an arc shape. In this way, the spring scraping plate 96 is convenient for concentrating the sludge at the bottom of the inner wall of the outer shell 1 inside the sludge discharge pipe 8, and the sludge can be quickly discharged.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated separation device for silica gel in sodium fluoride mother liquor, comprising a housing (1), characterized in that: The upper surface of the shell (1) is fixedly connected to a water inlet pipe (2), the top of the inner wall of the shell (1) is fixedly mounted with a baffle plate (3), a water step plate (4) is mounted on the side of the top of the inner wall of the shell (1) close to the baffle plate (3), a intercepting plate (5) is fixedly mounted in the middle of the inner wall of the shell (1), an L-shaped plate (6) is fixedly mounted on the right side of the inner wall of the shell (1), the right side of the shell (1) is fixedly connected to a water outlet pipe (7), the bottom end of the shell (1) is fixedly connected to a mud discharge pipe (8), and a mud scraping structure (9) is arranged inside the shell (1).

2. The integrated separation device for silica gel in sodium fluoride mother liquor according to claim 1, characterized in that: The mud scraping structure (9) comprises a threaded rod (91), a drive motor (92), a support block (93), a threaded block (94), a fixed scraper (95), a spring scraper (96), a rectangular slide groove (97), a slider (98) and a hydraulic cylinder (99); one end of the threaded rod (91) passes through the right interior of the housing (1); one end of the threaded rod (91) is fixedly connected to the drive motor (92); the drive motor (92) is fixedly mounted on the right outer wall of the housing (1); one end of the threaded rod (91) is rotatably connected to the support block (93); the outer wall of the support block (93) is fixedly connected to the right outer wall of the housing (1); At the bottom of the inner wall, the outer wall of the threaded rod (91) is threadedly connected to a threaded block (94), the outer wall of the threaded block (94) is fixedly connected to two fixed scrapers (95), the outer wall of the threaded block (94) is fixedly connected to a spring scraper (96) on one side close to the fixed scraper (95), the outer wall of the spring scraper (96) is provided with a rectangular slide groove (97) on one side close to the fixed scraper (95), the interior of the rectangular slide groove (97) is slidably connected to a slider (98), the interior of the fixed scraper (95) is fixedly installed with a hydraulic cylinder (99), and the output end of the hydraulic cylinder (99) is fixedly connected to the slider (98).

3. The integrated separation device for silica gel in sodium fluoride mother liquor according to claim 1, characterized in that: Small holes with a diameter of ten millimeters are evenly arranged inside the water step plate (4).

4. The integrated separation device for silica gel in sodium fluoride mother liquor according to claim 1, characterized in that: The intercepting plate (5) is an arc-shaped plate in a wave-shaped curve.

5. The integrated separation device for silica gel in sodium fluoride mother liquor according to claim 1, characterized in that: The bottom slope of the shell (1) is fifteen degrees.

6. The integrated separation device for silica gel in sodium fluoride mother liquor according to claim 2, characterized in that: The bottoms of the fixed scraper (95) and the spring scraper (96) are attached to the bottom of the inner wall of the outer shell (1).

Images